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.

Category Labs (https://www.category.xyz/) is a team of systems engineers and researchers on a mission to design and build at the frontier of decentralized technology. We strive to design and build step-function improvements over existing blockchain solutions. After raising $225M in series A funding, led by Paradigm, we are growing our team. - We are seeking Summer Research Interns to join our team and engage in advanced research in the fields of mechanism design, cryptoeconomics, distributed systems, programming languages, cryptography, and governance. This list is not exhaustive; if you have valuable and relevant perspectives, we encourage you to apply. -This internship provides a unique opportunity to gain perspective of cutting edge technology, to advance the science and technology of decentralized systems, and deliver impact at a large scale in industry. -Research projects will be inspired by the challenges of building a first-of-its-kind blockchain and exploring new research directions unlocked by decentralized systems. You will have the opportunity to propose your own research projects. -While you will learn from Category Labs’ researchers, engineers and other interns, you will also collaborate as an independent and equal peer. -The research internship can be extended to part-time employment as per your availability and the needs of the research project, and may foster future collaborations. What You'll Do: -Conduct novel and best-in-class research on above mentioned topics. -Contribute to the creation of technical content, including academic peer-reviewed papers, blog posts and white papers. -Collaborate with the engineering team to implement prototypes, build simulations, and conduct experiments to test your design, models and assumptions. -Engage in discussions with team members and visitors to refine research ideas and share insights from your own research. More in the job description:

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.

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).

Project Manager – National Quantum Mission (IIT Bhilai)

Applications are invited for the position of Project Manager under the DST–National Quantum Mission project titled “Development of tamper-proof SCA/FI resistant 10Gbps post-quantum In-line IP network encryptor, Post-Quantum TLS ASIC (PQ-TLS), and TLS Accelerator PCIe card using PQ-TLS ASIC.”

Position: Project Manager (01 post)
Duration: 1 year (extendable annually)
Salary: ₹80,000 (consolidated)
Age limit: 50 years

Essential Qualification:
PhD or ME/MTech with ≥4 years relevant experience, or BE/BTech with ≥7 years relevant experience in CSE/IT/ECE/Mathematics or related fields.

Desirable:
Strong background in Mathematics, Cryptography, and Programming; experience in project coordination and team leadership; ability to manage multiple tasks and meet deadlines. Experience with NIST Post-Quantum Standard Algorithms and/or Fault Analysis of Crypto algorithms with ChipWhisperer platform is a plus.

Principal Investigator:
Dr. Dhiman Saha, Assistant Professor, CSE, IIT Bhilai
Email: dhiman@iitbhilai.ac.in

How to Apply:
Submit the filled application form and CV to decipheredlab@iitbhilai.ac.in with the subject line “Application for Project Manager (NQM)”.


Important Dates:
Application deadline: 01 December 2025
Interview date: 15 December 2025 (11:00 AM, Room 413B, ED-1 Building, IIT Bhilai)

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.