2,124 Cryptography jobs in the United Kingdom

Cryptography Specialist

I am working with a global organisation that is expanding its cybersecurity capabilities and looking for a Cryptography Specialist to join their team. This is a fantastic opportunity to work at the forefront of digital security, managing encryption systems and key management processes that protect some of the organisation's most sensitive data.

As part of this role, you will be responsible for some of the following areas:

• Manage and maintain Hardware Security Modules (HSMs) and cryptographic infrastructure
• Create, store, rotate, and retire encryption keys securely across multiple platforms
• Support incident and change management processes related to cryptographic systems
• Collaborate with application, infrastructure, and support teams to ensure seamless integration
• Contribute to project delivery and continuous improvement initiatives

To be successful in the role you will have:

• Experience in cryptography and information security
• Hands-on experience with HSM configuration and support
• Familiarity with SSH key and certificate management
• Understanding of Unix and Windows environments

This is a hybrid role with flexibility to work remotely, though occasional office presence may be required. Some of the benefits included with the role are listed below:

• Starting salary of 35,000-45,000 depending on experience
• 12% pension contribution
• Private medical cover
• Discretionary bonus

This is just a brief overview of the role. For the full information, simply apply to the role with your CV, and I will call you to discuss further. My client is looking to begin the interview process ASAP, so don't miss out-APPLY now! To do so, please email me at (url removed) or call (phone number removed) .

Role Title: Cryptography Analyst
If you are considering sending an application, make sure to hit the apply button below after reading through the entire description.
Location: South of Manchester
Start Date: ASAP
End Date: 31st December
Rate: £450 per day - PAYE via Umbrella Only

As a minimum, we require the following:

• Recent hands-on experience in HSM Management for vendors such as Thales, Entrust, and Gemalto (or other HSM vendors)
• Proficiency in HSM Monitoring tools.
• Automation skills.
• Coding expertise, including Python or other
  Please click on the apply button to read the full job description

Role Title: Cryptography Analyst
Location: South of Manchester
Start Date: ASAP
End Date: 31st December
Rate: £450 per day - PAYE via Umbrella Only

As a minimum, we require the following:

• Recent hands-on experience in HSM Management for vendors such as Thales, Entrust, and Gemalto (or other HSM vendors)
• Proficiency in HSM Monitoring tools.
• Automation skills.
• Coding expertise, including Python or other .

• Design, develop, and implement cryptographic algorithms and protocols.
• Analyze the security of existing cryptographic implementations and identify potential vulnerabilities.
• Integrate cryptographic solutions into software systems and applications.
• Conduct research into new cryptographic techniques and their applications.
• Collaborate with cross-functional teams to define security requirements and ensure their implementation.
• Develop and maintain cryptographic libraries and tools.
• Stay up-to-date with the latest advancements in cryptography and cybersecurity.
• Perform code reviews with a focus on cryptographic security.
• Contribute to the development of security policies and best practices.
• Document cryptographic designs, implementations, and security analyses.

• Proven experience as a Cryptography Engineer or in a closely related security role.
• Deep theoretical knowledge of modern cryptography, including symmetric/asymmetric encryption, hashing, digital signatures, and PKI.
• Hands-on experience implementing cryptographic algorithms in languages such as C++, Python, or Go.
• Strong understanding of security principles and potential cryptographic vulnerabilities.
• Experience with cryptographic libraries (e.g., OpenSSL, libsodium).
• Familiarity with concepts like zero-knowledge proofs, secure multi-party computation, or post-quantum cryptography is highly desirable.
• Excellent analytical and problem-solving skills.
• Strong communication and collaboration abilities.
• Master's or Ph.D. in Computer Science, Mathematics, or a related field with a specialization in cryptography.

• Conducting cutting-edge research in theoretical and applied cryptography.
• Designing, analyzing, and verifying new cryptographic algorithms and protocols.
• Developing secure implementations of cryptographic primitives and systems.
• Contributing to research papers, patents, and technical reports.
• Collaborating with software engineers to integrate cryptographic solutions into products.
• Evaluating the security of existing cryptographic implementations and systems.
• Staying current with the latest advancements in the field of cryptography and cybersecurity.
• Mentoring junior researchers and contributing to the team's knowledge base.
• Presenting research findings at conferences and workshops.
• Exploring new cryptographic paradigms, such as fully homomorphic encryption or advanced multiparty computation.

Summary

As a Senior Cryptography Engineer in Applied Cryptography, you must be an engineer, an architect, an applied cryptographer and leader - it’s a multifaceted role. You have the exciting challenge of working with bleeding-edge research and technology, always with a focus on the market's needs. You will be a leader to an exceptional team. Working on everything from Post-Quantum prototypes to hand-optimisation of existing primitives to completely new products. To support you on this challenge, we have software architects, product managers, project managers, formal methods specialists and QA test engineers, with whom you must have high bandwidth communications.

You must possess a pragmatic mindset for building great products, knowing how to balance features, compromise, technical debt and effort, in order to get products shipped whilst their market impact is high.

Duties

• Champion of the applied cryptography team
• Captain end to end development and delivery of new products
• Spearhead prototyping of cryptographic products
• Translate research into rigorous engineering specifications & implementations
• Meticulously review cryptographic protocols and proposed primitives

Requirements

Key Competencies 

• Expert knowledge of  ZK protocols, including PlonK, Halo2 and IPA commitment scheme
• Expert knowledge of elliptic curve cryptography
• Familiarity with blockchain  cryptography and constructions
• Practical experience with implementation of cryptographic primitives
• Expert in terms of secure design (constant time, operational security, management of key material)
• Document code and APIs concisely and unambiguously
• Pragmatically adhere to software engineering principles (modularity, incremental development, no premature optimization, no feature creep, no speculative generality, .)
• Security sensibility related to cryptographic implementation
• Good theoretical cryptography and mathematical knowledge
• Ability to read cryptographic papers, explain them, and manage delivery of their implementation
  

Education / Experience

• Degree in Computer Science/Engineering or Applied Mathematics is desirable but not essential  
• A minimum of 4-5 years development experience (professional or otherwise) in Rust 
• Experience working with Git and version control
• Expert knowledge of applied cryptographic engineering & best practices

Benefits

Location

IOG is a fully distributed organization but due to team distribution, we require someone to be based either in Ireland, the UK or Poland.

All colleagues

• Flexible schedule
• Remote work
• Laptop reimbursement
• New starter package to buy hardware essentials (headphones, monitor, etc)
• Learning & Development opportunities
• Competitive PTO and Sick Leave plan

UK & Ireland Employees

• Monthly Health Stipend to use towards any wellness or medical coverage/service
• Pension

At IOG, we value diversity and always treat all employees and job applicants based on merit, qualifications, competence, and talent. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

At TechBiz Global , we are providing recruitment service to our TOP clients from our portfolio. We are currently seeking a Senior Software Engineer to join one of our clients' teams . If you're looking for an exciting opportunity to grow in a innovative environment, this could be the perfect fit for you.

You will work with the system that redefines how assets are minted, transferred, and managed, ensuring security and atomic consistency through a compact on-chain infrastructure that prevents double-spending.

You will be delivering a multi‐layered protocol stack (PoW, BFT, SMT aggregation, State Transition & Agent SDK), and are now scaling fast into advanced distributed systems and ZK‐integrated modules.

What You’ll Do

• Architect, design, and implement core components of the stack, including:

○ Proof of Work (PoW) consensus engine in C++

○ BFT consensus layer in Golang

○ SMT / proof aggregation layer, including ZK applications

• Collaborate across layers to ensure seamless integration, from mining through to off‐chain asset handling and crypto‐economic guarantees.

• Build the State Transition SDK and shape the upcoming Agent Execution SDK, enabling off‐chain transactions and verifiable, composable agent-driven logic.

• Optimize for scalability, performance, and security, particularly in high‐throughput, distributed environments.

• Design and validate consensus protocols, including Byzantine Fault Tolerant mechanisms and cross‐chain bridge communication.

• Work closely with research colleagues on ZK‐proof integrations, SMT sharding, and next‐gen cryptographic primitives.

Why to join?

• Build a future‐defining blockchain protocol that breaks free from monolithic, slow ledgers and centralized execution.

• Work with a small, world‐class team pushing the frontier of high‐throughput off‐chain computation with on‐chain security.

• Shape the future of open‐source tools, State Transition and Agent SDKs that empower developers globally.

• 5+ years of production experience in systems engineering, with advanced proficiency in Golang and/or C/C++

• Deep knowledge of distributed systems

• Strong experience in cryptography, Merkle / sparse Merkle trees

• Proven ability to operate in fast‐paced startups or open‐source protocol environments

• Clear, effective communicator, great at collaborating in cross‐functional, multidisciplinary teams

Bonus experience:

• Cryptographic protocol design, consensus protocols, cross‐chain bridges

• Zero‐knowledge proofs

• Performance profiling