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Lead API Platform Engineer – Backend & APIs

Mastercard is seeking a Lead Software Development Engineer for the API Platform in Greater London. This role involves leading the design and development of technical solutions for global customers, focusing on creating innovative APIs. Ideal candidates will have 8+ years of backend development experience, strong ...

Senior Tech Lead Backend Services & Cloud

A global financial services company is seeking a Lead Software Development Engineer in London to oversee technical design and implementation within a hybrid working model. You will drive project delivery, collaborate with cross-functional teams, and champion quality engineering practices. Exceptional programming ...

Geospatial Backend Lead Engineer Hybrid (UK)

A leading iGaming company is searching for a Lead Software Engineer to build and scale its core platform services in Newcastle upon Tyne. This hybrid role requires expertise in Java and geospatial-specific skills. The successful candidate will provide technical leadership, ensure system scalability, and mentor e ...

Senior Java Lead for Equities Algo Trading

J.P. MORGAN is seeking a Lead Software Engineer for its Equities Trading Technology Organization in Greater London. This role involves developing algo trading strategies and real-time systems while collaborating with global teams. Candidates should have advanced Java skills, experience in low latency trading, an ...

Senior Production Management Engineer — Hybrid (London)

Citibank (Switzerland) AG is seeking a Senior Engineer in Production Management to lead software development initiatives in London. This hybrid role requires strong Java programming skills, leadership in engineering practices, and the ability to implement CI/CD principles. Successful candidates will drive innova ...

Senior Backend Engineer — Scalable Java & Microservices

Burns Sheehan is seeking a Senior Backend Engineer in Manchester to lead high-performing engineering teams and own the end-to-end delivery of mission-critical software. The role involves mentoring, modernising architecture, and ensuring secure, resilient practices across systems. Ideal candidates will have exper ...

Senior Java Tech Lead: Cloud Microservices & FinTech

A leading financial institution in London is seeking a Senior Lead Software Engineer to deliver innovative cloud-native solutions. The ideal candidate will have significant experience in Java, be proficient with microservice architecture, and thrive in an agile environment. You'll be contributing to diverse proj ...

Staff AI Driven Full Stack Engineer

Agoda is seeking a Staff Full Stack Engineer to design and build AI-driven chat experiences from their Bangkok HQ. The role requires 8+ years of software engineering experience, expertise in Java, Kotlin, .NET, and JavaScript/TypeScript. You will lead full-stack architecture for user-centric solutions and mentor ...

Senior Backend Architect, Fraud & Risk – Remote

Fanatics Betting & Gaming is searching for a Staff Backend Engineer to lead the backend architectural evolution in fraud detection. The role requires 7+ years in software engineering, primarily with Java and Spring Boot, emphasizing secure and scalable systems. Ideal candidates will collaborate with Risk and Com ...

Senior Java Architect for AI Systems

Matillion is hiring a Senior Staff Software Engineer to work on the Maia team, specializing in agentic AI systems and driving architectural decisions. The successful candidate will lead the development of innovative AI features and mentor engineers while collaborating with product and data science teams. This ro ...

Senior Backend Engineer — Secure Cloud & Data Platforms

A technology firm in the UK is seeking an experienced Software Engineer to lead the development of backend platforms for national security and defense clients. You will work in an Agile team to leverage your expertise in JAVA, cloud technologies, and DevSecOps practices. This role requires at least 5 years of pr ...

Principal Backend Architect for Live Game Services

A leading gaming company in the UK is seeking a Principal Software Engineer for backend services. You will lead the architecture of major game titles, mentor the engineering team, and act as the key contact for external clients. Candidates must have experience in game development and architecting distributed app ...

Lead Vector Search Engineer Real Time Elasticsearch

Elastic, the Search AI Company, is seeking a Principal Software Engineer for their Elasticsearch Search team in the United Kingdom. The successful candidate will lead initiatives to develop an industry-leading vector database, focus on enhancing vector similarity search functionality, and collaborate with a dist ...

Senior Backend Engineer — Secure Cloud & Data Platforms

A technology firm in the UK is seeking an experienced Software Engineer to lead the development of backend platforms for national security and defense clients. You will work in an Agile team to leverage your expertise in JAVA, cloud technologies, and DevSecOps practices. This role requires at least 5 years of pr ...

Software Engineer III for COMMODITIES UK

As an Athena/Python, Front Office Software Engineer at JPMorgan Chase within the Commercial and Investment Banking - Precious Metals and Agriculture - Commodities Tech team, you will be an integral part of an agile team that works to enhance, build, and deliver trusted market‑leading technology products in ...

Software Engineer III for COMMODITIES UK

As an Athena/Python, Front Office Software Engineer at JPMorgan Chase within the Commercial and Investment Banking - Precious Metals and Agriculture - Commodities Tech team, you will be an integral part of an agile team that works to enhance, build, and deliver trusted market‑leading technology products in ...

Graduate Software Engineer

Graduate Software Engineer | Deep Tech Start-Up | London I am partnered with one of the UK’s most exciting deep-tech startups - a business already delivering cutting-edge technology to an exceptionally impressive client base, including some of the UK’s leading technology or ...

Senior Software Engineer

Are you a Senior Software Engineer looking for an interesting job opportunity?Read the overview of this opportunity to understand what skills, including and relevant soft skills and software package proficiencies, are required.Our client, TKMS ATLAS UK, are seeking a Senior Software Engineer with skills ...

Senior Software Engineer

Our client is a offering an exciting opportunity to join their fast-growing product-led SaaS business building AI-powered software that solves highly complex global finance and tax challenges for large enterprise customers. Their platform handles complex rule-driven workflows, large data sets, and e ...

Senior Software Engineer

Our client is a offering an exciting opportunity to join their fast-growing product-led SaaS business building AI-powered software that solves highly complex global finance and tax challenges for large enterprise customers. Their platform handles complex rule-driven workflows, large data sets, and e ...

Principal Software Engineer

Location London - Hybrid - 1-2 days a week Type Permanent No Sponsorship Available Overview We are seeking a Principal Full Stack Software Engineer to lead the design, development, and delivery of scalable, high-performance applications across a moder ...

Senior Software Engineer

iGaming / Sportsbook / Online Casino | Java Backend | Kafka or Rabbit MQ | Hybrid in London MUST have Geospatial-Specific Skills (geospatial APIs, map-based visualization tools, etc ) My client in the iGaming industry is looking for a Lead Software En ...

Senior Software Engineer

iGaming / Sportsbook / Online Casino | Java Backend | Kafka or Rabbit MQ | Hybrid in London MUST have Geospatial-Specific Skills (geospatial APIs, map-based visualization tools, etc ) My client in the iGaming industry is looking for a Lead Software En ...

DevOps Engineer 12

IT Global Consulting Limited – Seeking an experienced and highly motivated DevOps Engineer responsible for the development, maintenance and ongoing support of the platform, acting as the internal focal point for an enterprise platform. The ideal candidate is self‑motivated, ambitious and continuous ...

DevOps Engineer 12

IT Global Consulting Limited – Seeking an experienced and highly motivated DevOps Engineer responsible for the development, maintenance and ongoing support of the platform, acting as the internal focal point for an enterprise platform. The ideal candidate is self‑motivated, ambitious and continuous ...

Security Focused Software Engineer: Cloud, Agile, UK

A technology company specialized in Defence and Cyber Security is seeking Software Engineers to design, build, and maintain secure software systems. The role offers opportunity to work on meaningful projects and grow skills in a supportive environment. Ideal candidates are curious and willing to learn, with expe ...

Applied Scientist: Agentic AI Verification & Theorem Proving

A leading cloud services company is seeking an experienced applied scientist in Greater London. The position focuses on building software verification tools using AI and advanced reasoning techniques. Candidates should have a PhD or Master's in a relevant field and programming skills in Java, C++, or Python. Res ...

Senior Software Engineer, Global Payments Platform

A global payments technology leader is looking for skilled software engineers to join their team in London. Applicants should have over three years of experience in engineering complex software systems. The role emphasizes collaboration and innovation in creating solutions that impact millions. The ideal candida ...

Senior Software Engineer, Global Payments Platform

A global payments technology leader is looking for skilled software engineers to join their team in London. Applicants should have over three years of experience in engineering complex software systems. The role emphasizes collaboration and innovation in creating solutions that impact millions. The ideal candida ...

Remote Software Developer Contract Build Scalable Apps

YO IT Consulting is looking for a passionate Software Developer to join their team in the United Kingdom. In this remote role, you will be responsible for designing, developing, and maintaining robust applications using languages such as Python, Rust, and Java. Candidates should have over 3 years of relevant exp ...

Geospatial Java Cloud Engineer Hybrid (Remote 2 days)

A leading defence organization is currently seeking a Java Software Engineer to join their Agile Scrum team, focusing on innovative Geospatial software development. This role offers a hybrid working arrangement with 2 days remote each week and involves participating in the full software development lifecycle. Es ...

Hybrid Java Engineer: Cloud Native & Scalable

A leading tech company is seeking a skilled Java Software Engineer to design, build, and scale software solutions. This role requires a minimum of 2 years of experience in Java development and involves collaborative work in a hybrid environment, with three days of remote work. Key responsibilities include softwa ...

Hybrid Java Engineer: Cloud Native & Scalable

A leading tech company is seeking a skilled Java Software Engineer to design, build, and scale software solutions. This role requires a minimum of 2 years of experience in Java development and involves collaborative work in a hybrid environment, with three days of remote work. Key responsibilities include softwa ...

Real Time Spacecraft HIL Software Engineer

Capgemini is seeking a Software Engineer in Stevenage, UK, responsible for designing and developing hardware-in-the-loop simulators. Key responsibilities include technical requirements analysis and software implementation in C++ and Java, ensuring integration and testing of benches. Ideal candidates should have ...

Forward Deployed Engineer

Forward Deployed Engineer (AI) | Up to £145k + Bonus | London (Hybrid, 2–3 days onsite) This is a well-established Data & AI consultancy working at the point where models meet production. They partner with some of the most advanced AI organisations globally and are brought in when things need to a ...

Data Science Engineer

Data Science Engineer (DV Cleared) Location: London or ManchesterSecurity Clearance: DV ClearedSalary: Up to £80,000 An exciting opportunity has arisen for a Data Science Engineer to support a growing Data Science function within a major public sector programme. You'll be workin ...

Principal Software Engineer R10222012

Backend development (Java Spring Boot, Maven, Python) UK Citizenship Required for this Position Yes Relocation Assistance Relocation assistance may be available Travel Yes, 10% of the Time Define Possible at Northrop Grumman UK </ ...

Research Software Engineer / Senior Research Software Engineer

The King’s Digital Lab (KDL) isseekingto appoint either a Research Software Engineer or Senior Research Software Engineer. KDL is a Research Software Engineering (RSE) team embedded within the Faculty of Arts and Humanities at King’s College London. We design and implement systems, infrastructure, t ...

Research Software Engineer / Senior Research Software Engineer

About us King's Digital Lab (KDL) is a Research Software Engineering (RSE) team embedded within the Faculty of Arts and Humanities at King's College London. We design and implement systems, infrastructure, tools, and processes needed to produce a heterogeneous range of high quality digital schola ...

Research Software Engineer / Senior Research Software Engineer

The King’s Digital Lab (KDL) is seeking to appoint either a Research Software Engineer or Senior Research Software Engineer.KDL is a Research Software Engineering (RSE) team embedded within the Faculty of Arts and Humanities at King’s College London. We design and implement systems, infrastructure, too ...

Research Software Engineer / Senior Research Software Engineer

# Further InformationAt King’s, we believe that the diversity of our community and a culture that is welcoming, open, inclusive and collaborative, are great strengths of the university. The Equality Act of protects the rights of our students and staff and provides a framework to fulfil our duties to eliminat ...

Research Software Engineer / Senior Research Software Engineer

# Further InformationAt King’s, we believe that the diversity of our community and a culture that is welcoming, open, inclusive and collaborative, are great strengths of the university. The Equality Act of protects the rights of our students and staff and provides a framework to fulfil our duties to eliminat ...

Research Software Engineer / Senior Research Software Engineer

The King’s Digital Lab (KDL) is seeking to appoint either a Research Software Engineer or Senior Research Software Engineer.KDL is a Research Software Engineering (RSE) team embedded within the Faculty of Arts and Humanities at King’s College London. We design and implement systems, infrastructure, too ...

AI Software Engineer Global Financial £80k £100k

Overview AI Software Engineer - Agentic and GenAI (LangGraph & CrewAI) Location: Manchester Hybrid: 2 days per week in the office Do you have commercial experience using AI frameworks? If yes, this could be for you. Our client are a Global F ...

Software Developer

Software Engineer | Building Intelligent Systems That Make an Impact Central London 4 or 5 days a week on site Existing SC or DV Clearance is required National Security Sector An exciting opportunity has arisen for a Software Engineer to join a cutting‑edge team deve ...

AI Software Engineer Global Financial £80k £100k

Overview AI Software Engineer - Agentic and GenAI (LangGraph & CrewAI) Location: Manchester Hybrid: 2 days per week in the office Do you have commercial experience using AI frameworks? If yes, this could be for you. Our client are a Global F ...

AI Engineer

What if you could own and build the AI capability from the ground up in a scaling, purpose-driven tech company? We’re hiring the first dedicated AI Engineer to join a fast-growing (~280 people) Healthtech organisation making a real-world impact. This is a rare opportunity to shape th ...

Back End Developer (DV Cleared)

DV Cleared Backend DeveloperLocation: UK WideClearance: DV clearance requiredSector: Defence & National SecurityRole SummaryOur client is seeking DV cleared Backend Developers to support high impact Defence and Security programmes. You will design, build and operate se ...

Software Engineering Manager – Machine Learning

Location: London, UKTop Quant fund an experienced Engineering Manager / Tech Lead Manager to head a small, high-performing team focused on core ML infrastructure — distributed model training, LLM hosting/fine-tuning, and scalable deployment systems.You’ll own technical directio ...

Software Engineering Manager – Machine Learning

Location: London, UKTop Quant fund an experienced Engineering Manager / Tech Lead Manager to head a small, high-performing team focused on core ML infrastructure — distributed model training, LLM hosting/fine-tuning, and scalable deployment systems.You’ll own technical directio ...

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    Lead Software Engineer Python Java Jobs in United Kingdom Job Search Guide, Trends and Insights