We are looking for a bright post-doc researcher with strong interest and suitable experience in any of the following research areas:

• Advanced public-key encryption: e.g. Homomorphic Encryption (HE), Updatable Public-Key Encryption (UPKE), KEMs with extra propeties, and their use in the design of protocols.
• Lattice-based cryptography: Design, analysis, and prototyping of cryptographic schemes based on hard problems in lattices.

The successful candidate will be leading on research activities in an ongoing EU research project on post-quantum cryptography. They will work closely with members of the Privacy and Applied Cryptography (PACY) lab, led by Prof. Mark Manulis, and the Quantum-Safe and Advanced Cryptography (QuSAC) lab, led by Prof. Daniel Slamanig. The candidate will benefit from our modern infrastructure and availability of funds to support own research. Also, Munich is amongst best places to live in Germany.

This position is available for a start in April 2026 and is fully funded at federal salary level TVöD E13 (~59k to 64k EUR p.a. depending on qualifications and experience). The initial contract will be for 1.5 years with a possibility of extension. Candidates without doctoral degree but with sufficient research experience, e.g. final-year doctoral students, are also welcome to apply. (More info via URL below.)

Requirements:

• At least a completed Master degree in cryptography, mathematics or computer science
• Strong background knowledge / experience in privacy-enhancing cryptography research and development
• Publications in top-tier cryptography / security / privacy venues
• Fluency in written and spoken English, (German is not essential)

Application deadline: January 25, 2026. The search will continue until the position is filled.

Please send your application including a cover letter, CV, transcripts of grades, and two contacts for academic references as a single PDF document per email with subject line ”Application PACY“.

AAU is seeking to appoint a full professor in cybersecurity (candidates from all technical areas are welcome). Depending on the candidate's academic credentials, the professorship can either be open-ended or fixed-term (with option of a permanent extension).

The professorship is located at the Department of Artificial Intelligence and Cybersecurity, and takes a central role in the department, as well as the delivery of the MSc in AI and Cybersecurity.

A starting date of September 1st 2026 is envisioned. Salary, as well as associated positions (pre-doc and post-doc) are negotiable. For further information about the position please follow the link, and/or get in touch via the context supplied below.

Applications must be made by 14th of January 2026 via: https://jobs.aau.at/en/job/5-2/

We are looking for multiple interns to work with us on research projects around the real-world implementation security of MPC protocols, in particular, the gap between assumptions on the theory side and implementation choices made in practice. The internships are expected to take place at Aarhus University between May and August 2026.

Candidate profile:
Interns are expected to be current or recent PhD students with a relevant background in at least one of the following research areas:

• Modeling of MPC (security) in general, or of real-world aspects of other types of cryptographic protocols
• Attacks on implementations of advanced cryptographic protocols such as MPC, ZK, or related protocols
• Implementations of MPC protocols and related protocols

In exceptional cases, we may also consider master or bachelor students with relevant expertise.

Application:
The application deadline is 7 January 2026. Please see the project website (https://mpcinthewild.github.io) for further instructions.

The post-quantum cryptography research group at Monash University, Australia, has multiple Ph.D. student scholarship openings for research projects including in particular the following areas:

1. FHE Private Computation and zk-SNARKs: to devise practical cryptographic tools for securing FHE-based private cloud computation applications, including theory and application of zk-SNARKs,

2. Design of practical Post-Quantum Symmetric-key-based digital signatures (including Legendre PRF based) with privacy enhanced properties using MPC and SNARK techniques,

3. Design of practical lattice-based cryptographic protocols,

4. Secure and efficient implementation of lattice-based cryptography.

Students will have the opportunity to work in an excellent research environment. Monash University is among the leading universities in Australia and is located in Melbourne, ranked as Australia's most liveable city and among the most liveable cities in the world.

Applicants should have (or expected to complete in the next 12 months) a Masters or Honours equivalent qualification with a research thesis, with excellent grades in mathematics, theoretical computer science, cryptography, or closely related areas. They should have excellent English verbal and written communication skills. Programming experience and skills, especially in Sagemath/python/Magma and/or C/C++, are also highly desirable.

To apply: please fill in the following form - applicants will be assessed as they are received:

https://docs.google.com/forms/d/e/1FAIpQLSetFZLvDNug5SzzE-iH97P9TGzFGkZB-ly_EBGOrAYe3zUYBw/viewform?usp=sf_link

Join our team as a PhD student in post-quantum cryptography at the Department of Digital Security, Radboud University, The Netherlands. Two open positions within the PQ-HINTS project of Simona Samardjiska funded through the NWO VIDI Talent program, the first one starting in spring 2026, and the second around a year later. The goal of the project is understanding the impact of learning partial information on the private key in post-quantum cryptography. Determining how much leaked information is enough to mount a successful attack is of great importance both in evaluation and protection of post-quantum crypto implementations. You will be working on providing a strong mathematical framework for partial key exposure and using it to improve the efficiency of digital signatures and their implementations while offering strong security guarantees. You will pursue your PhD in a vibrant international research environment. At DiS and Radboud we value diversity, so we particularly encourage candidates with diverse backgrounds, cultures, and perspectives to apply. Requirements: A master degree in mathematics, computer science or a relevant discipline; Solid programming skills and excellent knowledge of algebra and combinatorics; good command of spoken and written English; ability to work in a team. To react to this post, please send your CV and a short motivation to simonas@cs.ru.nl. Don't hesitate to contact me if you have any questions, for example job conditions and environment. The call is open until the positions are filled (expected early 2026).

There are several openings for postdoctoral positions for the 2026-2027 academic year at the new Columbia-Ethereum Research Center for Blockchain Protocol Design (see below for more information about the center). Inquiries and application materials can be sent to Tim Roughgarden at tr@cs.columbia.edu.

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Blockchain technology creates the abstraction of a “computer in the sky”---a global and shared programmable virtual machine that combines the general-purpose functionality of a computer with the decentralization and fault-tolerance of the Internet. A blockchain protocol plays a role similar to that of an operating system---an intermediate layer that insulates the application layer (i.e., smart contracts) from the hardware layer (i.e., the Internet) and acts as the “master program” that coordinates the execution of all the virtual machine’s system and user-installed programs. Blockchain technology can be viewed as adding state and data processing capabilities to traditional Internet infrastructure and, among other applications, it enables stronger forms of ownership of digital assets than society has ever had before.

Blockchain protocol design requires innovation in and the synthesis of a number of technically challenging fields, including distributed systems, game theory and mechanism design, cryptography, and more. The Columbia-Ethereum Center for Blockchain Protocol Design brings together the multi-disciplinary expertise at Columbia to advance the performance, security, robustness, and economics of this societally important technology.

The Center’s activities include research grants for Columbia faculty, students, and their collaborators; postdoctoral and graduate student fellowships; an industry research-in-residence program; and several events, including the Columbia Cryptoeconomics Workshop and an annual summer school.

The Real-World Crypto Group at FAU invites applications for 1 PhD and 1 Postdoctoral position (full-time, E13 TV-L), starting early 2026.

About the Positions

The positions are funded for three years and focus on:

• Interoperable secure messaging (in collaboration with Paul Grubbs, University of Michigan)
• Private and anonymous communication

Research Topics

• End-to-end encryption and interoperability
• Anonymous messaging
• Security of deployed protocols
• Provable security and protocol design

PhD Position

• MSc degree in computer science or related field
• Interest in applied cryptography and IT security
• Motivation to complete a PhD within three years

Postdoctoral Position

• PhD in cryptography, mathematics, computer science, or related field
• Experience in applied cryptography and IT security

Good English skills are expected; German is not required.

Group & Location

We're a young, motivated, international team working on strengthening security and privacy in practice and improving methods for that in theory. The Nuremberg region offers excellent transport links (including an international airport and fast trains to Munich, Frankfurt, and Berlin), proximity to international companies, and easy access to the Franconian Switzerland climbing and outdoor area.

How to Apply

Please submit your application by 31 January 2026 to paul.roesler@fau.de.

Your application should include:

• Cover letter (indicate PhD or Postdoc)
• CV
• Degree certificates and transcripts
• At least one reference contact
• Short statement of research interests

Interviews will be held in mid February, online or in person in Erlangen.

Equal Opportunity

FAU encourages applications from women and gives preference to candidates with disabilities in cases of equal qualification.

Large language model (LLM) agents represent the next generation of artificial intelligence (AI) systems, integrating LLMs with external tools and memory components to execute complex reasoning and decision-making tasks. These agents are increasingly deployed in domains such as healthcare, finance, cybersecurity, and autonomous vehicles, where they interact dynamically with external knowledge sources, retain memory across sessions, and autonomously generate responses and actions. While their adoption brings transformative benefits, it also exposes them to new and critical security risks that remain poorly understood. Among these risks, memory poisoning attacks pose a severe and immediate threat to the reliability and security of LLM agents. These attacks exploit the agent’s ability to store, retrieve, and adapt knowledge over time, leading to biased decisions, manipulation of real-time behavior, security breaches, and system-wide failures. The goal of this project is to develop a theoretical foundation for understanding and mitigating memory poisoning in LLM agents. This position, funded by the Swedish Research Council (VR), offers an exciting opportunity to work at the forefront of AI security, tackling some of the most pressing challenges in the field. Full information and application link: https://liu.se/en/work-at-liu/vacancies/27883

Applications are invited for a 12-month fixed-term Postdoctoral Research Fellow in the Mathematics Department at the University of Auckland. The research fellow will assist Professor Steven Galbraith with their duties in research in post-quantum cryptography, teaching, and supervision. The ideal candidate will have a track record of publications at IACR conferences on lattice-based, code-based and/or isogeny-based post-quantum crypto. The duties will include: Research in post-quantum cryptography; Writing reports; Teaching parts of COMPSCI 727, COMPSCI 225, and/or other courses in discrete mathematics, cryptography, and number theory; Helping supervise PhD students.

TT-logic is a cutting-edge start-up, part of Nanyang Technological University (NTU) in Singapore (through its incubator NTUitive). The company specializes in developing interpretable, compact and verifiable neural network models that can be deployed with privacy-preserving inference. We provide transparent, understandable, and secure AI solutions to clients, leveraging TTnet, a technology developed at NTU.

Job Summary:
Thanks to a recently awarded tech-development grant, we are seeking a talented and motivated Fully Homomorphic Encryption (FHE) Engineer to join our team. Your role will be to implement and optimize TTnet privacy-preserving inference through Zama's Concrete-ML library and other FHE libraries, manage cryptographic parameters, and compilation. You will help finalize prototypes and ship reproducible, containerized, and well-documented packages. You will collaborate with a Machine Learning engineer and our full-stack engineers to integrate your FHE pipeline into deployable privacy-preserving pilots in clients' environments.

This role offers an exciting opportunity to work with cutting-edge technology, shape the future of XAI/privacy-preserving AI, and contribute to the success of a promising startup.

Qualifications:

• Bachelor, Master or PhD degree in Computer Science, Software Engineering, Cryptography, or a related field.
• Experience with Concrete-ML library from Zama or other FHE/crypto libraries.
• Hands-on Docker and CI/CD experience, comfort with Linux tooling, clear documentation.
• Effective communication and interpersonal skills to collaborate with other engineers.

Applications are invited for the MS and PhD positions at the Department of Computer Science and Engineering, National Sun Yat-sen University, Kaohsiung, Taiwan. The successful candidates will work at the CANSEC Lab on the diverse topics in applied cryptology.
(Note: Candidates must comprehend formal security analysis, secure coding, and effective security integration in the application domains.)

Responsibilities: Apart from academic work, student must involve in several activities in a group or individually, such as (not limited to):

Design and implementation of safety protocol.

Assesment of the security and performance metric.

Research meeting with the supervisor.

Requirements: (02 MS and 01 PhD positions)
Apart from the university's basic admission policies (https://cse.nsysu.edu.tw/?Lang=en), students are desired to have following key requirements:

Strong motivation on applied cryptography.

Knowledge of modern technology, such as C-V2X, 5G/6G, Cloud computing, IoT.

Knowledge of basic mathematics.

Knowledge of at least two programming languages, such as Python/Java/C/C++.

Master's thesis must match the research field: Cryptography/Information Security. (for Phd positions)

Scholarship:

Fully-funded MS (up to 2 years) and PhD programs (up to 3 years) through university grants and standard project funding; additional financial support available for exceptional PhD students.

Deadline for CV submission: December 31, 2025.
Deadline for online application: Jan~March, 2026.
Joining CANSEC-Lab@NSYSU: Fall 2026.

We are seeking multiple students to join us and do research in design, analysis, implementation and/or application of post-quantum cryptography.

PQC-X is a newly founded lab led by Prof. Jintai DING, a globally recognized leader in Post-quantum Cryptography. Our doctoral programme is a strategic research collaboration between the Xi’an Jiaotong-Liverpool University and the University of Liverpool. You will be formally registered with the two universities as a doctoral student. Successful completion of the programme will lead to a doctoral degree awarded by the University of Liverpool and recognised by the Chinese Ministry of Education.

What we offer:

World-class supervision from leading cryptography experts.

Vibrant research environment and access to top-tier collaboration network.

Excellent candidates will be fully funded.

General requirements: We are looking for motivated, talented, and hardworking applicants who have

Bachelor’s and/or master’s degrees in Cryptography, Mathematics, or Computer Science, or closely related areas, from a reputable university.

Solid foundation in cryptography, mathematics, or computer science.

Strong interest in cryptography.

Coding skill is a plus.

English language requirements: IELTS/TOEFL/PTE.

Please refer to https://www.xjtlu.edu.cn/en/admissions/doctoral for more information.

For Inquiries, please contact Associate Professor Zhang.

Silence Laboratories is looking for cryptography research interns for the summer of 2026. Candidates must be students enrolled in a PhD program, or otherwise be able to demonstrate a comparable level of proficiency in cryptography. The internship will be centered on a privacy preserving computation product being built at Silence, and will involve investigating the underlying theory (likely a subfield of MPC) and ideally result in a prototype implementation.

At Silence, you can expect unique and impactful opportunities to put theory to practice, freedom in how you approach your work, competitive pay, and a chance to work with some of the top research and engineering talent.

The internship will be fully remote and for a duration of 3 months, although exact dates can be flexible. Please send your CV and a link to your homepage (if available) to internships@silencelaboratories.com with the title “Summer 2026 Application [Your Name]” by Dec 20th 2025 for full consideration.

The Applied Cryptography Group at Technical University of Darmstadt offers a fully funded position as PhD student in Cryptography. The positions is to be filled as soon as possible for 3 years with the possibility of extension. You will conduct research and publish/present the results at top venues for research in cryptography and IT Security.

Topics of particular interest include (but are not limited to):

• Distributed cryptography
• Cryptography for blockchains and cryptocurrencies
• Cryptography for privacy

Your profile:

• Completed Master's degree (or equivalent) with excellent grades in computer science, mathematics or a similar area.
• Strong mathematical and/or algorithmic/theoretical CS background
• Good knowledge of cryptography. Knowledge in concepts of provable security is a plus.
• Fluent written and verbal communication skills in English

TU Darmstadt is a top research university for IT Security, Cryptography and Computer Science in Europe. We offer excellent working environment in the heart of the Frankfurt Metropolitan Area, which is internationally well-known for a high quality of life.

Review of applications starts immediately until the position is filled. For further information please visit: https://www.informatik.tu-darmstadt.de/cac/cac/index.en.jsp

Please send your application including a CV, transcripts from your Bachelor and Master and a letter of motivation to: job@cac.tu-darmstadt.de

The Princeton DeCenter invites applications for its inaugural cohort of Postdoctoral Fellows, and more senior researchers with academic or industry experience beginning in Fall 2026.

The DeCenter is a newly established interdisciplinary hub at Princeton University devoted to exploring the decentralization of power and trust through blockchain (and similar) technology.

We seek to create a truly interdisciplinary cohort of postdoctoral fellows to jointly lead research projects. Fellows' primary responsibilities will therefore be to conduct research and collaborate with others in cross-disciplinary research initiatives. We also seek to maintain a vibrant interdisciplinary community, and fellows will also be responsible for co-organizing weekly seminars, occasional workshops, etc. that are of interest to the broader DeCenter community. An ideal candidate would satisfy the following selection criteria:

A strong record of research in their primary discipline.
A demonstrated ability to lead independent projects.
A demonstrated ability (ideal) or demonstrated interest (necessary) in interdisciplinary engagements, and the ability to serve as a strong bridge between their primary discipline and others.
A strong record of research (ideal) or demonstrated interest (necessary) in foundational research concerning blockchain technology or similar technologies that support the decentralization of trust.

Please submit all application materials through the official portal here: https://puwebp.princeton.edu/AcadHire/apply/application.xhtml?listingId=40762.

The Cryptography Group at ISTA invites applications for a Postdoctoral Researcher in theoretical and applied cryptography. For part (about one year) this position can be funded by the SPYCODE project (https://spycode.at/).

Potential research topics include:

• blockchain related topics, including consensus protocols, scaling.
• proofs of resources, like proofs of work, proofs of space, proofs of time (verifiable delay functions).
• public-key cryptography.
• lower bounds.

Position details:

• Full-time, fully funded.
• Initial term: 2 years, extendable.
• Flexible start (ideally asp).
• Working language: English (no German required).

About IST Austria:
The Institute of Science and Technology Austria, near Vienna, offers a vibrant, international research environment, strong interdisciplinary exchange, and competitive compensation.

Application:
Please send a CV and optionally a research statement and contact details of one or two referees to pietrzak@ista.ac.at with the subject Postdoc Application – SPYCODE.
Applications will be reviewed until the position is filled.

The Computer Science Department at the New Jersey Institute of Technology (NJIT) invites applications for a tenure-track faculty position starting in Fall 2026. Exceptional candidates will be considered in all areas of Computer Science, but priority will be given to those that can build synergies in Cybersecurity, defined broadly. We aim to hire at the rank of Assistant Professor, but exceptional candidates at higher ranks will also be considered.

NJIT is a Carnegie R1 Doctoral University (Very High Research Activity), with $178M research expenditures in FY24. The Computer Science Department has 34 tenured/tenure track faculty, with nine NSF CAREER, one DARPA Young Investigator, and one DoE Early Career awardees. The Computer Science Department enrolls over 2,000 students at all levels across six programs of study and is part of the Ying Wu College of Computing (YWCC), alongside the Departments of Informatics and Data Science. YWCC has an enrollment of more than 3,800 students in computing disciplines and is the largest producer of computing talent in the tri-state (NY, NJ, CT) area.

To formally apply for the position, please submit your application materials at https://academicjobsonline.org/ajo/jobs/30654. Applications received by December 31, 2025 will receive full consideration. However, applications are reviewed until all the positions are filled. Contact address for inquiries: cs-faculty-search@njit.edu.

At NJIT, diversity is a core value. We foster a sense of belonging by celebrating individual differences and ensuring that every member of our community feels included and empowered.

We are looking for an Applied Cryptographer to join the Hashgraph engineering team. You will design, build, and integrate privacy-by-design features for enterprise solutions built on Hedera technology. This is a greenfield initiative at the cutting edge of decentralized systems and applied cryptography, with a focus on confidentiality, anonymity, history masking, and end-to-end security at scale.

This is a highly technical role where you will transform the newest research ideas into practical applications by designing, implementing, and optimizing cryptographic primitives and protocols (e.g., ZKPs, MPC, homomorphic encryption, Trusted Execution Environments) and secure smart contracts. You will collaborate closely with existing in-house cryptography researchers, partner with Product to translate customer privacy requirements into a clear roadmap, evaluate emerging solutions across the ecosystem, and work side-by-side with our Hashgraph engineers to prototype, benchmark, and produtize capabilities in HashSphere.

If you enjoy deep technical challenges, have a strong command of modern cryptography, and have experience turning advanced research into reliable, high-performance systems while navigating confidentiality-performance trade-offs, this is an exciting, impact-driven role shaping the privacy foundation for some of the world’s largest enterprises.

Apply here: https://www.hashgraph.com/careers/?gh_jid=8284328002

Since this position requires Swedish citizenship, the below description of the position is available in Swedish only.

Centrum för cyberförsvar och informationssäkerhet (CDIS) vid KTH — som är ett samarbete mellan KTH och Försvarsmakten, samt vissa andra myndigheter — söker doktorander. Det rör sig om en bred utlysning inom cybersäkerhetsområdet. Vi vill här särskilt peka ut en möjlig specialisering inom kryptologiområdet.

Mer specifikt har KTH i samarbete med avdelningen för krypto och IT-säkerhet vid Must pågående spetsforskning som syftar till att möta de utmaningar som följer av kvantdatorutvecklingen. Vi söker nu inom ramen för CDIS utlysning en doktorand som kan bidra till den forskningen.

Doktoranden kommer att handledas av Johan Håstad och Martin Ekerå. Tjänsten kommer att omfatta 80% doktorandstudier vid KTH och 20% placering vid Must där möjlighet ges att arbeta med några av Sveriges främsta kryptologer. Resultatet för doktoranden blir en unik kombination av teori och praktik inom kryptologiområdet.

För ytterligare information, kontakta Johan Håstad (johanh@kth.se) eller Martin Ekerå (ekera@kth.se).

Sista ansökningsdag är den 15 december 2025. Observera att svenskt medborgarskap är ett krav för tjänsten, och att tjänsten medför krav på säkerhetsprövning.

TU Wien is Austria's largest institution of research and higher education in the fields of technology and natural sciences.

The Security and Privacy Research Unit at TU Wien, as part of the TU Wien Cybersecurity Center (https://cysec.wien/), is offering a PhD student position in provable symmetric cryptography for privacy-friendly protocols within the WWTF CrossPings (Cross-Domain Privacy-Preserving Protocols and Symmetric Cryptography) project.

Our research unit is internationally renowned for its expertise in cryptography, security, and privacy. Our working language is English.

Candidate Profile

• Motivated candidates with excellent academic records
• Completed Master or Diploma in Mathematics, Computer Science, or related fields
• Experience in cryptography or security is a plus

Application

Formal applications must be submitted via the link above. We look forward to receiving your application until 20.12.2025.

Fully-funded competitive PhD studentship, highly suitable for UK candidates, is available.

Brief Description: Weather forecasting and environmental prediction are vital for managing risks such as flooding, extreme temperatures, and poor air quality. However, most forecasting systems rely on centralised data processing, raising concerns about privacy, data ownership, and resilience to cyber attacks or system failures. These challenges have been largely overlooked in both the UK and globally.

This project builds on recent work by Dr Aydin Abadi and colleagues at Newcastle University, who developed a decentralised weather forecasting framework combining Federated Learning (FL) and blockchain. The approach enables multiple organisations to train shared forecasting models without exchanging raw data. Blockchain ensures transparent model validation, while privacy-preserving methods protect sensitive local observations.

The PhD will extend that research by improving the scalability, accuracy, and security of decentralised environmental forecasting. It will explore advanced cryptographic techniques such as secure aggregation, privacy-preserving consensus, and private set intersection (PSI) to protect participants’ data and evaluate performance on real and synthetic meteorological datasets.

The goal is to deliver a scalable and secure collaborative forecasting framework that strengthens environmental resilience and benefits society.

The candidate will work on (quantum-)computational and mathematical aspects of lattice-based or isogeny-based cryptography. They will join the Number Theory team at ENS de Lyon, supported by grant ANR-22-PNCQ-0002 (the HQI initiative).

The candidate should hold a PhD degree in Mathematics or Computer Science and have a strong research record in any of the following areas: number theory, quantum computing, lattice-based cryptography, or isogeny-based cryptography.

Applications should be sent to Benjamin Wesolowski at postdoc.hqi.wiring373@passmail.net (including a CV, cover letter, and list of references).

The Department of Computer Science (CS) at the University of Alabama at Birmingham (UAB) is seeking candidates with expertise in cyber security for a tenured associate professor position holding the Phyllis and David Brasfield Endowed Faculty Scholarship, starting Fall 2026.

The CS Department at UAB offers PhD, MS, BS, and BA programs. For additional information about the Department, please visit: https://www.uab.edu/cas/computerscience/. UAB is a Carnegie R1 research university, Alabama’s single largest employer, and an engine of revitalization for Birmingham, the largest city in Alabama.

For the complete job announcement and application procedures, see: https://uab.peopleadmin.com/postings/26352

We are looking for a cybersecurity professor to strengthen Estonia's existing expertise. Our computer science department (http://www.cs.ut.ee) has two related research groups: cryptography (led by Helger Lipmaa) and security engineering (led by Raimundas Matulevicius). We are looking for an ambitious researcher (with a steady presence at big four security conferences) with demonstrated leadership skills who can build a larger team. The professor and the team are expected to actively participate in teaching, research, supervision, and external activities.

Application deadline: 15.12.2025.

Official information is available at the provided URL https://ut.ee/en/job-offer/professor-cybersecurity; the application URL is available there. The salary has to be factored against Estonia's low taxes and low living costs. (More than 5000 euros monthly net salary, with 700-1500 euros rent for a three-bedroom modern apartment close to the department and the city center).

About Estonia. Estonia is part of Northern Europe but shares many similarities with German culture. It is part of the EU and NATO. The country is ranked high in the Press Freedom Index and the Democracy Index. Estonia is well-known to be an "IT-country", with early adoption of IT at the state level and many IT companies (including startups).

About Tartu. Tartu is a small university town. The University of Tartu is a research university with a strong computer science department. While the city is small, it is vibrant with student life.

About the department. The university and the department have many foreign faculty members and graduate students. The department is located in a modern building in the center of Tartu. We have strong research groups in many areas, ranging from cryptography and coding theory to machine learning and information systems.

We are looking for a Ph.D. student who is interested in one of the following areas:

• Secure Multi-Party Computation (MPC): MPC enables multiple parties to jointly compute on their data without revealing private information. Our research develops highly efficient MPC protocols for real-world applications such as healthcare analytics, cyber risk management, and biometric authentication.
• Hardware-Accelerated Cryptography: We design cryptographic schemes optimized for hardware acceleration and explore co-design strategies between cryptography and hardware (e.g., GPU, FPGA). The goal is to achieve secure and privacy-preserving computation with high performance and scalability.
• Blockchain Security and Privacy: We build secure and privacy-preserving blockchain infrastructures. Our research addresses challenges including resource-constrained users, confidential yet verifiable data, and trustworthy decentralized services.

Advisor information: https://yanxue820.github.io/

The USF Center for Cryptographic Research is recruiting multiple postdoctoral fellows to work on Applied Algebra with an emphasis on Cryptography, Coding Theory, and Quantum Computing. The successful candidates will be hosted by the USF Department of Mathematics & Statistics on our Tampa campus.

Our program is supported by an NSF Research Training Group (RTG) grant. More information about our RTG program is available at: http://usf-crypto.org/rtg-overview/.

Minimum qualifications include a Ph.D. from an accredited institution in mathematics, computer science, or a related field. ABD candidates are acceptable, but the degree must be conferred before the intended start date. Must meet university criteria for appointment to the rank of Postdoctoral Fellow. Preference will be given to candidates with an established record of publications in Applied Algebra; in particular, Cryptography, Coding Theory, or Quantum Computing.

The start date is negotiable, but must be before August 7, 2026. Position will remain open until filled.

Applications must be submitted online at http://jobs.usf.edu. Required documentation, submitted as a SINGLE document, includes a Cover Letter, CV, and a Statement of Research. In addition, candidates should have at least three letters of recommendation submitted through MathJobs.org. The Mathjobs links for the positions are below:

• Position 1 (Cryptography): https://www.mathjobs.org/jobs/list/27368
• Position 2 (Coding Theory): https://www.mathjobs.org/jobs/list/27367
• Position 3 (Quantum Computing): https://www.mathjobs.org/jobs/list/27370
• Position 4 (Open): https://www.mathjobs.org/jobs/list/27371

Positions 1 to 3 are for 3 years, and applicants must be U.S. citizens or permanent residents (Green Card). Position 4 is for 2 years, but carries no residency restriction.

Review of applications will begin on December 1, 2025.

Open positions at all ranks (tenure track, associate and full professor) at our Department of Computer Science, Aarhus University! All topics welcome, including in particular: Quantum Information Processing, Quantum Cryptography, System/Network Security. Deadline Jan 5th 2026

Company Description

ClairVault is an early-stage startup developing privacy-preserving technologies that allow organizations to use their sensitive data securely and in compliance with regulations. Our core mission is to make encrypted data usable: enabling real-time search, analytics, and predictions without decryption.

We focus on advanced cryptographic methods such as privacy-preserving encryption, secure computation, and vector-embedding encryption, working with early customers in healthcare, finance, and enterprise systems. With academic and industry advisors and proof-of-concept projects underway, ClairVault is bridging research and real-world applications of cryptography.

Role Description

This is a full-time remote or hybrid role for a Cryptography Researcher. You will explore, design, and analyze cryptographic protocols for privacy-preserving data processing and work closely with engineers to translate your research into high-performance implementations. This role is ideal for someone passionate about advancing applied cryptography while helping shape the foundation of an innovative startup.

Responsibilities

• Research and design cryptographic schemes for privacy-preserving computation and encrypted data search.
• Analyze the security and efficiency of proposed schemes.
• Collaborate with Rust developers to implement research into production-ready libraries.
• Evaluate and benchmark cryptographic algorithms on real-world datasets.
• Stay ahead of emerging trends in cryptography, privacy, and secure computation.

Qualifications

• Advanced degree (Master’s/PhD) in Cryptography, Computer Science, Mathematics, or a related field.
• Strong knowledge of modern cryptography (e.g., homomorphic encryption, lattice-based cryptography, secure multiparty computation, zero-knowledge proofs).
• Demonstrated research contributions (publications, preprints, or open-source projects).
• Ability to analyze the trade-offs between theoretical security guarantees and practical performance.
• Comfortable working in an early-stage startup environment.