51 to 75 of 96 Software Testing Jobs in London

Design, build and operate software systems and APIs Lead technical design decisions and own product features end-to-end Specialise into backend, frontend, full-stack, mobile, DevOps or SRE Work for global tech giants, UK fintechs, banks, scale-ups and the public sector What does a Software Engineer … Software Engineers design, build, test and operate software systems. Day-to-day work mixes coding (typically in Python, JavaScript/TypeScript, Java, Go or Ruby), technical design, code review, debugging, system architecture decisions, and on-call incident response. UK engineers operate across many product areas: consumer apps, fintech ...

Validation and Verification Engineer – Software-Based Systems Location: Bristol (Hybrid – 4–5 days on-site per week) Salary: Circa £55,000 DOE + bonus, flexi-leave & benefits Security Clearance: Sole UK or Dual British National | SC eligibility required Join a specialist Validation and Verification team working at the heart … high-impact Command & Control (C2) system – a critical capability for national defence and threat response. You’ll be part of a team ensuring complex software-based sub-systems are ready for real-world deployment. With significant cross-functional exposure and a strong systems engineering approach, this role offers ...

globally About You Experience in Python or equivalent programming languages, with ability to build and support automation, tooling and operational improvements Practical experience in software development, testing, deployment and production support using agile development methodologies Understanding of large-scale application plants, including capacity management, resiliency, failover and operational ...

impact of their work and for its inner workings/operations. They are a model for the team on best practice for software development in general (and their specialization in particular), including code quality, documentation, DevOps, and testing. They ensure robustness of our services and serve as an escalation … well as CI/CD driven application deployments. Consult science users on application scalability to PBs of data by having a deep understanding of software engineering, algorithms, and underlying hardware infrastructure and their impact on performance. Confidently optimizes design and execution of complex solutions within large-scale distributed computing ...

toward becoming the category‐defining platform for debt markets worldwide. The opportunity We are looking for a Senior Developer Experience Engineer to help make software development at the company faster, simpler and safer. This is a software engineering role focused on the tools, systems and paved roads that … other engineers use. You will work across the software development lifecycle, from creating a new service through to testing, deployment, observability and operating it in production. You will join an established Platform team and work alongside our existing Developer Experience Engineer. You will speak directly with engineers, understand ...

innovative tech company in Greater London is seeking a Forward Deployed Engineer to support customer deployments and enhance their software testing platform. This role combines engineering and customer interaction, requiring strong programming skills and effective communication. Ideal candidates will have a computer science degree and a proactive attitude. ...

profit & loss analysis for our trading operations. Key Responsibilities As a Senior Python Developer on our team, you will build and maintain robust software solutions for rates trading activities. You will collaborate closely with quantitative analysts, traders, risk managers, to integrate systems across front office, middle and back office … Rates. Required Qualifications Minimum 5 years of hands-on Python development experience Strong preference for candidates with financial services background Solid understanding of software engineering principles including object‐oriented design, testing methodologies, and version control practices Demonstrated ability to write clean, maintainable code and work effectively within large ...

across our customised Moodle platform. • Perform code reviews and contribute to engineering best practice. • Support fellow developers through collaboration and knowledge sharing. • Maintain high software quality through testing and continuous improvement. • Write and maintain unit tests and Behat tests where appropriate. • Work closely with designers, product managers … productivity and code quality. • Contribute to an engineering culture focused on continuous learning and improvement. About You You'll enjoy solving problems, building quality software and collaborating with people across technical and non-technical teams. You're equally comfortable developing front-end experiences and backend functionality ...

across our customised Moodle platform. • Perform code reviews and contribute to engineering best practice. • Support fellow developers through collaboration and knowledge sharing. • Maintain high software quality through testing and continuous improvement. • Write and maintain unit tests and Behat tests where appropriate. • Work closely with designers, product managers … productivity and code quality. • Contribute to an engineering culture focused on continuous learning and improvement. About You You'll enjoy solving problems, building quality software and collaborating with people across technical and non-technical teams. You're equally comfortable developing front-end experiences and backend functionality ...

management and profit & loss analysis for our trading operations. Responsibilities As a Senior Python Developer on our team, you will build and maintain robust software solutions for rates trading activities. You will collaborate closely with quantitative analysts, traders, risk managers, to integrate systems across front office, middle and back … Rates. Required Qualifications Minimum 5 years of hands-on Python development experience Strong preference for candidates with financial services background Solid understanding of software engineering principles including object-oriented design, testing methodologies, and version control practices Demonstrated ability to write clean, maintainable code and work effectively within large ...

challenging environments. Join a mission-driven team focused on defender autonomy, with opportunities to push theory into deployed perception systems and collaborate across hardware, software, and flight test domains. #J-18808-Ljbffr ...

local data-protection requirements, working with Security and Legal. AI-enabled engineering Apply our standards for using large language models and agentic tools across software design, development, testing and operations. Treat specifications, context, prompts, agent configurations and evaluation criteria as version-controlled engineering artefacts. Design and improve guardrails … designs, use cases and acceptance criteria. Identify technical risks early and maintain clear architecture decisions and supporting documentation. Knowledge and Experience Essential experience Strong software-engineering and solution-architecture experience, with significant depth in payments, billing or subscription platforms. Practical understanding of payment providers, payment orchestration, subscription lifecycles ...

similar messaging technologies. Experience with PostgreSQL. Experience working with AWS cloud services. Hands-on experience with Docker and containerised applications. Strong understanding of software engineering best practices, testing and CI/CD. Excellent communication and problem-solving skills. Desirable Experience with Gradle. Experience working within Agile development teams. ...

Overview Senior Developer Experience Engineer – help make software development at 9fin faster, simpler and safer.This role focuses on the tools, systems and paved roads that other engineers use. You will work across the software development lifecycle, from creating a new service through to testing, deployment, observability … operating it in production.You will join an established Platform team and work alongside our existing Developer Experience Engineer. Your customers are 9fin’s software engineers, and you will have the autonomy to solve problems that help them build products quickly, securely and to a high standard of quality. What ...

solutions while contributing to technical best practices, code quality, and continuous improvement initiatives. Key Responsibilities Design, develop and maintain full-stack applications using modern software engineering practices Build and enhance scalable backend services, APIs and distributed systems Develop AI-powered features, workflows and automation capabilities across business applications Work … databases Optimise application performance, scalability and reliability through analysis, tuning and continuous improvement Collaborate with cross-functional teams to deliver high-quality software solutions Support CI/CD pipelines, deployment processes and DevOps best practices Troubleshoot complex technical issues and contribute to production support activities Produce clear technical documentation ...

across our customised Moodle platform. • Perform code reviews and contribute to engineering best practice. • Support fellow developers through collaboration and knowledge sharing. • Maintain high software quality through testing and continuous improvement. • Write and maintain unit tests and Behat tests where appropriate. • Work closely with designers, product managers … productivity and code quality. • Contribute to an engineering culture focused on continuous learning and improvement. About You You'll enjoy solving problems, building quality software and collaborating with people across technical and non-technical teams. You're equally comfortable developing front-end experiences and backend functionality ...

Role: Software Engineer (Distributed Systems & ML Infrastructure) Client: Elite Tech Firm Compensation: Up to £220k Base + Industry-Leading Bonus Location: London (Hybrid) Overview An Elite FinTech firm is expanding its world-class engineering team and looking for exceptional Software Engineers who thrive on solving complex distributed problems … distributed systems for large-scale ML infrastructure. Responsibilities Design and build high-performance, distributed systems for large-scale ML infrastructure Drive best practices in software architecture, testing, and scalability Lead and collaborate on multiple greenfield initiatives focused on performance, reliability, and scale Requirements Open to all experience levels ...

System Integration Engineer , you’ll be at the centre of bringing Wayve’s AI driver to life, leading the integration of hardware and software across internal and partner vehicles. Working closely with Electrical, Mechanical, Systems, and Software Engineers, you’ll architect and evaluate new hardware, own system bring … based on system requirements Involved in the definition and execution of a full lifecycle for a physical/embodied product – encompassing electrical, mechanical, and software systems Experience in defining and iterating through HW architecture of an embedded/robotics system Experience working with supply chain on complex systems, engineering ...

CrowdStrike is seeking a Software Developer in Test for our Cloud Detections Platform team, tasked with building the next‐generation detection platform. The role focuses on developing and operating the team’s CI/CD pipeline, ensuring solutions work and raising alarms when they don’t, and building … validation processes. Increase and improve automated test coverage; contribute to existing tools, frameworks, and solutions. Leverage new open source solutions to build innovative testing tools. Improve delivered product quality across the entire platform and applications. Collaborate on root cause analysis of production outages and implement quality improvements to prevent ...

DESCRIPTION AI is rewriting the rules of software engineering — and enterprise organizations need leaders who can turn that disruption into competitive advantage. As AI-assisted development, agentic coding tools, and autonomous engineering capabilities go mainstream, most companies are stuck between experimentation and real impact: fragmented adoption, unclear integration paths … Transformation Strategist operates in highly ambiguous environments, framing ill‐defined problems into actionable engagements, and influencing stakeholders from C‐level executives to individual software engineers. It is a role for someone who thrives at the intersection of customer obsession, technical depth, and delivery excellence. The role is based ...

stories and functional requirements.* Govern change requests, balancing commercial priorities, innovation, customer improvements and operational resilience while ensuring transparent prioritisation and stakeholder communication.* Oversee testing, release planning and deployment processes, ensuring business readiness, quality assurance and successful delivery of new functionality.* Define and measure the success of new features … track record of managing high-performing teams and driving collaboration, accountability and customer focus.* Confident working across Agile environments with a solid understanding of software development lifecycles, testing and change management.* Skilled at translating business requirements into technical solutions while balancing competing priorities and making informed trade ...

Scale Factory in the United Kingdom is seeking a Senior Software Developer in Test with active security clearance for a contract role. You will develop and automate tests across Java and JavaScript ecosystems, and contribute to QA strategy while leading a small testing team. This role emphasizes hands … automation using Playwright and Selenium, building robust CI/CD pipelines and performance testing workflows, with clear collaboration across stakeholders. #J-18808-Ljbffr ...

venture-backed defense-tech company with the mission of protecting service members and civilians with intelligent systems. Its products include Hivemind autonomy software and V-BAT and X-BAT aircraft. With offices and facilities across the U.S., Europe, the Middle East, and Asia-Pacific, the company’s technology actively … Follow the company on LinkedIn, X, Instagram, and As Senior Program Manager you will be responsible for ensuring the quality of Hivemind Enterprise, a software development kit that enables both the company and third parties to create a new generation of unmanned systems and mission applications that deliver transformative ...

threat modeling professionals. You will partner with application development, cloud engineering, cybersecurity, and business stakeholders to proactively identify and mitigate security risks across the software development lifecycle, cloud environments, and emerging technology initiatives.Why This Role Is Important To UsThe team you will be joining is part of the Security … applications, cloud platforms, APIs, and emerging technologies.Partner with Security Architecture, Application Security, Cloud Security, Engineering, and Development teams to embed threat modeling throughout the software development lifecycle.Conduct and oversee threat modeling exercises for critical business applications, cloud-native services, AI solutions, and strategic transformation initiatives.Define actionable risk mitigation strategies ...

practices and new areas of value. You will be expected to sell across our service practices, including: Cloud consulting and engineering Quality engineering and testing services Managed services AI and data offerings Technology advisory and transformation support The successful candidate will be commercially driven, proactive, and comfortable building pipeline … will likely have: Proven success in a quota-carrying new business sales role. Experience selling a blend of consulting, technology services, managed services, software delivery, cloud, QA/testing, AI or data solutions. Strong ability to open new relationships and develop opportunities from early-stage conversations. Confidence engaging ...