Software Developer Jobs in England, United Kingdom

Lead Software Development Engineer - Developer Experience at Capital One focuses on improving software delivery for engineers. The role blends engineering, community advocacy, and technical leadership to enhance tools, CI/CD pipelines, AWS deployment, and developer experience across UK and US teams.

Technology team at GSA Capital builds proprietary software systems to support the firm's trading and research operations. As a Software Developer you will design, implement, and maintain high-performance code, collaborating with quantitative analysts to solve complex problems.

Konrad is a next‑generation digital consultancy solving complex business problems for global clients with creative solutions. We hire smart, analytical, lifelong learners.

NICE Public Safety team delivers SaaS solutions for public safety and justice, enabling law enforcement agencies to manage digital evidence at scale. The Senior Software Developer designs, implements, and tests UI, server, and API components in C# within multi‑threaded, multi‑server environments, ensuring security, scalability, and maintainability.

Software Developer Trainee role at Ecareers offers a fully funded 12‑week training program for individuals with no prior experience. Candidates will work on coding projects under experienced developers, develop software modules, test patches and bug fixes, and collaborate across teams.

Atos Group's Digital Application Services (DAS) function seeks a Lead Software Developer to design, develop, and deliver scalable full-stack solutions that modernize services and improve resilience for business operations. Day-to-day, you will lead technical design and delivery, mentor engineers, drive DevOps and continuous delivery practices, own production services, and collaborate with architects, product managers, and stakeholders across Agile teams.

Data Infrastructure team at Squarepoint Capital builds high‑performance microservices for large‑scale data storage and retrieval supporting trading and research. The Software Developer designs, develops, and maintains C++‑based microservices, optimizes performance, troubleshoots issues, and collaborates with data engineers, scientists, and researchers.

Senior Software Developer at White Swan Data, a fast‑growing team of mathematicians, data scientists and engineers building low‑latency trading systems. The role designs, develops and optimises cloud‑based pipelines, implements real‑time data processing, and collaborates with quantitative analysts to translate strategies into production code.

Software Developer Intern at 10,000 Black Interns 23/24 in London. This role offers hands‑on experience building web applications, collaborating with cross‑functional teams, and learning industry best practices.

LMAX is a high-performance, ultra-low latency exchange written in core Java, driving the financial industry in new directions through greenfield projects. As a Junior Software Developer, you will work across the stack solving problems ranging from performance-critical components to greenfield cloud systems, supported by pair programming, team rotations, and dedicated personal development time.

Zaizi's Platform Engineering team builds secure, high‑performance backend services for UK government digital projects. As a Software Developer you will design, code and test Go‑based systems, maintain CI/CD pipelines with Docker and Kubernetes, and collaborate with product owners, UX designers and platform engineers.

You will join the PA team at the Global Innovation and Technology Centre, Back Lane, Melbourn, Hertfordshire, SG8 6DP, United Kingdom, working full-time onsite at least four days a week. You will develop solutions at the system level and take on implementation work to realise your concept, working across the whole development lifecycle for clients in the Defence and Security sector.

Software Developer at Teledyne Technologies in Fareham, UK. Build and maintain high‑quality C++ code, collaborate with cross‑functional teams, and optimize performance across multiple projects. Hybrid work model with on‑site and remote days.

Expedia Group's Product Experience team builds and maintains high-availability, high-transactional Property Detail Pages on the app. As a Fullstack engineer, you will design, build, and maintain scalable full stack applications and services, lead end-to-end development including system and API design, collaborate across engineering, product, and business teams, mentor engineers, and safely integrate AI/ML-enabled solutions.

As a Software Developer within the Martech and PAM Platform department, you will join the Risk and Regulatory team to develop high quality scalable solutions following agile practices. Day to day, you will build, support and enhance existing application code bases using Typescript, React, JavaScript, Golang, SQL, HTML5, CSS 3 and Google Cloud Platform, while supporting Product Owners, the Testing team, and contributing to solution proposals and work effort estimates.

The Business Systems Solutions department at bet365 seeks a Business Systems Software Developer to bridge complex needs and innovative technical solutions for global operations. As a full stack developer, you will design, develop, and maintain robust systems, write clean code, upgrade applications, and maintain documentation.

Client Consulting Team at Pierre Strand works to bridge client needs with cutting‑edge software solutions. The consultant gathers requirements, translates them for developers, and guides clients through implementation and adoption.

About ITRS Recognised as a Great Place to Work, ITRS is an Enterprise SaaS provider with industry-leading solutions. Our mission is to make society’s critical technology work via automated & holistic IT observability solutions that safeguard critical applications and enable innovation.

Unified Platform team at DRW builds innovative systems for analysts, quants, and traders to enable research and trading. As a Software Developer Intern you will develop tools for rapid market opportunities, partner with internal customers to create self‑service applications, and build large‑scale data acquisition, storage, and visualization software.

The Contacts team at Wise builds and owns the end-to-end recipient management experience, from scalable backend platforms securing tens of millions of bank accounts to intelligent search algorithms and customer-facing screens. As a Senior Software Developer, you will drive the technical vision for the backend solution powering the recipient user experience, helping scale and build a world-class recipient management product.