Cyber Security Jobs

• Cambridge
• Hybrid · 2 days in office
• Mid-level

Partners with developers and product teams to embed quality from the start, designing and maintaining automated test frameworks across API, UI, integration and regression layers. Builds scalable suites into CI/CD pipelines, drives shift-left testing, and contributes to test strategy, code reviews and architecture discussions.

Cypress · Playwright · pytest +7

• Paris, France
• On-site
• Senior

Owns planning, coordination and execution of test and quality activities within a cross-functional Identity Verification product team, covering web, mobile, backend and ML-powered products. Builds maintainable automated test frameworks and suites, mentors colleagues, and leads test engineering initiatives across teams, combining automation with exploratory testing.

Playwright · Cypress · Selenium +12

• London
• On-site
• Senior

Owns test planning, coordination and execution within a cross-functional identity verification product team, covering web, mobile, backend and ML-powered journeys. Builds maintainable automated test frameworks, combines automation with exploratory testing, and mentors colleagues while improving CI/CD pipelines and release feedback loops.

Playwright · Cypress · Selenium +12

• London
• Mid-level

Own the full software development lifecycle for distributed systems supporting threat disruption and legal response, building data pipelines that collect and expose threat intelligence for analysts and customers. Work primarily in Golang and TypeScript with Rust, Kafka, Redis, Kubernetes, Terraform and Postgres, collaborating with Threat Intelligence, Trust & Safety, Legal and Product teams, plus on-call rotations and mentoring.

Golang · TypeScript · Rust +7

• Derby
• On-site
• £25,000 – £60,000 pa
• Permanent

Develops and tests high-integrity software for encryption and secure communications products, working in embedded C/C++ with a strong focus on functional correctness, formally defined specifications and industry standards. Involves unit and automated testing, code reviews, static analysis and technical documentation within a small, highly skilled engineering team.

LDRA · Parasoft

• London
• €54,000 – €75,000 pa
• Mid-level

Join the Security Rules team to design, build and operate microservices behind Cloudflare's Application Security products such as Rate Limiting and Web Application Firewall. Work mainly in Rust and Go across distributed systems, databases, Docker and Kubernetes, with on-call duties and mentoring responsibilities.

Rust · Go · Docker +7

• Derby
• On-site
• £40,000 – £70,000 pa
• Permanent

Design, develop and test embedded software in C/C++ for secure communications products, working with RTOS, ARM microcontrollers and register-level programming. The role involves unit testing, static analysis, code reviews and technical documentation within a multidisciplinary team, with security and quality central to delivery.

STM32 · JTAG · ETM +2

• Cambridge
• Hybrid
• £60,000 – £70,000 pa
• Senior

Senior role shaping system design and test criteria for Linux-based embedded systems, leading software security work including Hardware Root of Trust, Secure Boot and TPM integration. Day to day involves embedded C development, Yocto build systems and Linux kernel work, integrating software with hardware via I2C, SPI and UART, plus root-cause debugging. The position also includes mentoring junior engineers within an Agile R&D environment.

Linux · Yocto · Jenkins +6

• London
• On-site
• Senior

Design and build software to solve Workload Identity challenges, from prototyping to production, covering both client and server. Work across networking, security, cloud, Kubernetes, encryption, PKI, JWT and SPIFFE, with Golang development, while mentoring a close-knit team and engaging internal and external stakeholders on technical trade-offs.

Kubernetes · Windows API · SPIFFE +2

• London
• £80,000 – £90,000 pa
• Senior

Do you have a background in Application Security, DevSecOps or Product Security, with hands-on experience embedding application security into the SDLC If so, this could be an opportunity worth considering.Join a well-established health research organisation and charity supporting large-scale medical…

• London
• Permanent

Builds and operates large-scale distributed systems that process security-relevant data with high availability and low latency, owning services end to end including architecture, deployment, monitoring and on-call. Works with very large datasets and cross-functional security, compliance and service teams, contributing to technical direction and mentoring engineers.

• London
• Mid-level
• Permanent

Builds and operates AWS services that detect and automatically mitigate cybersecurity threats across Amazon's infrastructure at massive scale. Works with security engineers and data scientists on low-latency, big-data architectures using Lambda, Kinesis and DynamoDB, with shared ownership of operational excellence and on-call rotation.

AWS · AWS Lambda · Amazon Kinesis +1

• Whiteley
• Hybrid
• £61,500 – £78,800 pa
• Senior

Designs, develops and maintains manual and automated test scripts and reporting for a flagship National Security programme, using frameworks such as Katalon Studio, Selenium, SoapUI and JUnit. Analyses requirements and designs to build risk-based test approaches, working within hybrid Waterfall and Agile scrum teams alongside software and systems engineers.

Katalon Studio · Selenium · SoapUI +5

• Stevenage
• On-site
• Mid-level
• Permanent

Configure, instrument and operate electrodynamic shaker systems to run vibration and shock tests on new spacecraft equipment, installing accelerometers and flight hardware. Work with mechanical engineers to meet customer test objectives, maintain instrumentation and facilities through calibration and logbooks, and support internal and external audits while upholding quality and safety standards.

Electrodynamic Shaker Systems · Vibration Control Software · Accelerometers

• Chippenham
• Hybrid
• Mid-level
• Permanent

Day-to-day administration of the Spacecraft Control Centre's Linux and Cisco-based command and control systems, including configuration, equipment swap-outs, and restoration of capability. Acts as lead engineer for deployment planning, testing, and patching of system upgrades across a multi-site SCOF network, liaising with customers on fault investigation. Requires in-date RHCSA and offers hybrid, flexible working.

Cisco · CCNP · CCNA +2