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Senior Software Engineer — FinTech Payments & Banking Integrations

A leading fintech company in Greater London is looking for a Software Engineer to drive the development of payment technologies. In this role, you'll integrate new bank APIs and work on a variety of challenges in crypto and fintech. Ideal candidates should have a strong knowledge of Java and enterprise software, ...

Senior Software Engineer — Space Systems (Hybrid, ESOP)

A technology firm is looking for a Senior Software Engineer to join their team in Tipton, UK. The position involves software development for space communication systems and requires an active Secret clearance. Candidates should have a BS in Computer Science and 3-6 years of development experience, with skills in ...

Senior Software Engineer, Unified Platform Global Markets

A leading trading firm in the UK is seeking a Senior Software Engineer to join their Unified Platform organization. This role involves developing tools for data acquisition, storage, and visualization, while collaborating closely with analysts and traders. The ideal candidate will have 2-3 years of software deve ...

Senior Software Engineer Conversational AI in Healthcare

A healthcare technology company in Birmingham is looking for a Senior Software Engineer to enhance their innovative conversational agent platform. The role involves designing and implementing scalable solutions, collaborating with cross-functional teams, and mentoring junior engineers. The ideal candidate has ov ...

Trading Connectivity Backend Engineer

A leading technology firm in the digital asset market is seeking a Software Engineer to join their Trading Connectivity team in London. In this role, you will design and maintain high-performance backend systems that connect with various liquidity providers. The ideal candidate has 1-3 years of experience in sof ...

Senior Full Stack Engineer — AI Driven, TS/Vue, AWS

A financial services company located in Manchester is seeking an experienced Senior Software Engineer. You'll work in collaborative teams, utilizing AWS and technologies like Typescript and Java, to lead feature delivery and mentor peers. The role encourages innovation and perspectives on modern coding practices ...

PKI & Identity Security Software Engineer

A leading recruitment agency is seeking a talented software engineer to develop high-volume PKI solutions in an agile environment. The ideal candidate will have experience with Go, Java, C++, or Python, and possess knowledge of full-stack applications, REST APIs, and DevOps principles. Strong communication skill ...

Global Impact FDSE: End to End Solutions Architect

A leading software company based in Greater London seeks a Forward Deployed Software Engineer to design and implement solutions addressing complex customer challenges. You will work on impactful projects, leveraging technologies to drive real outcomes. Candidates should have at least 1+ years of programming expe ...

Video Quality Analysis Engineer Real Time ML

A fast-growing UK technology company is looking for an experienced Software Development Engineer to enhance video streaming quality and technology. You will design algorithms using Java, C++, or C# and focus on machine learning and computer vision techniques to improve video quality. The ideal candidate has over ...

Senior Software Engineer, Shared Platforms: Scale & Cloud

A leading financial services company in Nottingham seeks a Senior Software Development Engineer to enhance their software delivery capabilities. This role includes designing and implementing solutions within a cross-functional team, ensuring security and performance at scale. Candidates should possess strong Jav ...

Senior Software Engineer, National Security – Hybrid

A leading technology company based in Gloucester is seeking a Senior Software Engineer to join their National Security team. This role involves designing, coding, and testing software while mentoring junior developers. Candidates should have a strong command of back-end programming languages like Java and Python ...

Senior GenAI Platform Engineer

A global information provider is seeking a Senior Software Engineer II to drive architectural decisions and develop generative AI services. The ideal candidate should have over 5 years of software engineering experience, deep expertise in Python or Java, and strong experience with Kubernetes. Responsible for des ...

Senior Backend Infra Engineer Scalable Systems

A leading software company in Greater London is searching for a Software Engineer to develop scalable and reliable infrastructure systems. You will be engaged in diverse tasks such as building a search ecosystem, contributing to open-source libraries, and crafting distributed systems. The position demands over 6 ...

Platform Engineer: Distributed Systems & Cloud

A leading technology company in London is seeking a skilled software engineer to join their Platform Engineering team. The role involves building and maintaining critical financial infrastructure, working on high-availability distributed systems, and enhancing developer tooling. Ideal candidates will have 3+ yea ...

Senior Software Engineer, Unified Platform Global Markets

A diversified trading firm in Greater London is seeking a Senior Software Engineer to join their Unified Platform team. The role involves developing software solutions for data acquisition and visualization while collaborating closely with internal users. Candidates should have strong experience in Java or Pytho ...

Graduate Software Engineer: Real Work, Mentorship, Growth

A tech-driven insurtech company in Greater London is seeking a Graduate Software Engineer to join their product team. You will be involved in building real software from day one, collaborating with engineers and designers, and gaining mentorship and experience in a diverse tech stack including Java and React/Nex ...

Senior Software Engineer – Hybrid Finance Tech (Markets Ops)

Citigroup Inc. is seeking a Senior Software Engineer in Belfast. You will help redefine global finance by building robust software solutions in a dynamic team environment focused on integration and automation. Ideal candidates have strong programming skills primarily in Java, React, and Python, along with experi ...

Backend Infrastructure Engineer: Scale & Secure Systems

A leading software company in Greater London seeks a Backend Software Engineer to build scalable and performant systems, tackling real-world problems with innovative solutions. The role involves collaborating across teams and working autonomously to create APIs and systems that support impactful products. Candid ...

Principal Software Engineer Tech Leader in Cloud & Scale

Hippo, a digital consultancy, seeks a Principal Software Engineer to lead engineering vision and technical direction. You will mentor senior engineers, influence stakeholders, and ensure best practices in software delivery. With experience in Python, Node, or Java, and a strong background in cloud platforms and ...

Staff Software Engineer Billing Platform & Microservices

A leading Fintech company in Northern Ireland seeks a Staff Software Engineer to design and optimize billing services in a fast-paced team. The ideal candidate will have over 8 years of software development experience, particularly in Java and Python. The company offers a competitive salary, a hybrid work model, ...

Embedded Software Engineer – On Site DV Clearance

A leading defence technology company in Malvern is looking for a Software Engineer to join their OpTech team. You will develop software solutions that protect Sovereign states from sophisticated threats. Responsibilities include integrating digital hardware technologies and ensuring rigorous engineering practice ...

DV‑Cleared Senior Software Engineer — Secure Systems

A prominent UK security agency seeks a Senior Software Engineer to tackle mission-critical challenges in Cheltenham. You'll design, develop, and maintain software solutions using languages like Java, Python, and more. The job includes mentoring and working with cross-functional teams while engaging with various ...

Staff Backend Engineer, Lending Platform Scale & Impact

A leading fintech company is seeking a Staff Software Engineer to architect and implement large-scale systems for credit solutions. The ideal candidate has 6+ years of software engineering experience, with at least 2 years in a leadership role. You will design robust services and maintain high standards of techn ...

ML Software Engineer: Build Production Models

Starling is seeking a skilled Software Engineer to join their ML Projects team in Greater London. This role requires building and maintaining features that utilize machine learning models within their banking platform. Candidates should have a strong background in software engineering, experience in delivering s ...

National Security Cyber Software Engineer

A leading digital intelligence firm in Gloucester is seeking an Operational Cyber Software Engineer. This role focuses on developing secure, reliable software solutions for critical cybersecurity needs. Candidates should be eager to learn and have a foundational understanding of programming languages like C++, J ...

Senior Android Engineer Kotlin, Scale & Impact

A leading food delivery service in Greater London is seeking a Software Engineer to enhance their technology infrastructure. The role involves improving code structure and architecture, as well as leading projects in a collaborative environment. Ideal candidates will have over 3 years of experience in Android de ...

Staff Software Engineer, Enterprise Lending Platform

A global financial technology company is seeking a Staff Software Engineer. This role will focus on architecting, designing, and implementing scalable systems for their lending platform. Candidates should have substantial experience in software engineering, leadership, and building robust APIs, preferably using ...

Software Engineer – Scale Travel Platform (In‑Person)

A growing technology company is seeking a Software Engineer to help build and scale its platform that powers travel’s growth. You will collaborate with product, design, and engineering teams to deliver high-impact features and improve system reliability and performance. The ideal candidate is experienced in Kotl ...

Quality Assurance Software Test Engineer Hybrid UK

A leading technology company in Glasgow is seeking an experienced Software Test Engineer to join their Pronto Deployment team. This role involves verifying software in an agile environment while focusing on quality improvement. Candidates must have a degree in Computing Science or equivalent, along with strong c ...

Senior Front End Engineer Hybrid, Impactful Web Apps

A leading digital solutions company is seeking a Senior Software Engineer to design and build high-quality software across various platforms. This hybrid role calls for strong expertise in React Native or Java/AWS, as well as a proven track record in working with complex systems. Candidates should be autonomous ...

Senior Software Engineer Conversational AI in Healthcare

A healthcare technology company in Birmingham is looking for a Senior Software Engineer to enhance their innovative conversational agent platform. The role involves designing and implementing scalable solutions, collaborating with cross-functional teams, and mentoring junior engineers. The ideal candidate has ov ...

Senior Java Developer in Charing Halian Technology Limited

Senior Java Developer Charing, UnitedKingdom Posted 9 months ago Tech Stack Java web services Spring Framework REST Requirements I require a minimum of 5 years of professional experience in software development, with a strong focus on Jav ...

Senior Java Developer in Charing Halian Technology Limited

Senior Java Developer Charing, UnitedKingdom Posted 9 months ago Tech Stack Java web services Spring Framework REST Requirements I require a minimum of 5 years of professional experience in software development, with a strong focus on Jav ...

Lead Engineer Payments Platform Modernisation

Lead Engineer - Payments Platform Modernisation Start: July 2026 Duration: Initial contract until Dec 2026, with extension potential Location: London / Hybrid 2 days onsite Rate: Up to £750 per day Inside IR35 We are supporting a major UK financial services client ...

Lead Software Engineer: AI Driven Delivery (Remote)

Scott Logic in Newcastle upon Tyne is seeking a Lead Agentic Software Engineer to work at the forefront of AI-augmented software delivery. You will lead a multidisciplinary team, tackling challenging software problems while building relationships with clients and advising on technology decisions. The role requir ...

AI Driven Client Facing Forward Deployed Software Engineer

Oliver Bernard is seeking a Forward Deployed Software Engineer to join a high-growth AI deployment company. In this role, you will embed with teams, build AI-native workflows from start to finish, and influence software delivery in various sectors such as finance, energy, and healthcare. Applicants should have o ...

AI Driven Forward Deployed Software Engineer

Indicium AI is searching for a Forward Deployed Software Engineer in Greater London. You will directly engage with client engineering teams to redesign their software development processes using AI technologies like Claude Code. This role requires at least 5 years of software engineering experience, a strong und ...

AI Driven Client Facing Forward Deployed Software Engineer

Oliver Bernard is seeking a Forward Deployed Software Engineer to join a high-growth AI deployment company. In this role, you will embed with teams, build AI-native workflows from start to finish, and influence software delivery in various sectors such as finance, energy, and healthcare. Applicants should have o ...

Backend Engineer – Scalable Data & APIs

A leading software company based in Greater London is seeking a passionate Backend Software Engineer to architect, develop, and maintain high-performance backend systems. You will collaborate with cross-functional teams to create sophisticated data solutions, optimize code for speed, and build robust APIs. The i ...

Lead Software Engineer: AI Driven Delivery (Remote)

Scott Logic in Newcastle upon Tyne is seeking a Lead Agentic Software Engineer to work at the forefront of AI-augmented software delivery. You will lead a multidisciplinary team, tackling challenging software problems while building relationships with clients and advising on technology decisions. The role requir ...

Trading Systems Engineer: Systematic Market Making

Quant Capital is looking for a Trading Systems Software Developer based in London, United Kingdom. The ideal candidate will have a solid command of computer science fundamentals and experience with trading systems. Responsibilities include implementing core components primarily in Kotlin and ensuring system reli ...

Engineering Manager: Lead Teams to Deliver Impact

A technology company in the UK is seeking an experienced Engineering Manager to lead its Core Functionality team. The ideal candidate will have a strong background in software engineering, especially Java, and a proven track record in managing high-performance teams. Responsibilities include overseeing the devel ...

Senior C/C++ Developer (with Java experience) in Belfast Version 1

Senior C/C++ Developer (with Java experience) Belfast, UnitedKingdom Posted 9 months ago Tech stack Java C TypeScript JavaScript Windows React Requirements Development on a Windows en ...

Staff Software Engineer, Traffic Team

Locations In this role you can work from Remote, United Kingdom Overview GitHub is changing the way the world builds software, and we want you to help lead this effort. The Traffic Team plays a critical role in GitHub's scalability and resiliency. GitHub’s Traffic team i ...

Senior Backend Engineer Contractor (Java, Python, Rust + Ruby nice to have) | Fully Remote / EU[...]

Senior Backend Engineer Contractor (Java, Python, Rust + Ruby nice-to-have) | Fully Remote / EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend Contractor with deep expe ...

Low Latency FX Java Developer Front Office Trading

A global consulting group in London is seeking a highly skilled eFX Java Developer. This role involves designing and maintaining low-latency Java applications for electronic FX trading systems, collaborating with front-office teams, and implementing algorithmic trading strategies. The ideal candidate has strong ...

Senior Java Architect: Cloud Native, DDD & Microservices Lead

A leading financial markets infrastructure provider in the UK seeks a Principal Java Architect. This mid-senior level role involves leading the design and governance of Java platforms, ensuring best practices, and enhancing the development ecosystem. The ideal candidate will have deep Java expertise and a strong ...

Solutions Architect

A major financial market infrastructure is undergoing a multi-year transformation, moving from legacy COBOL-based systems on HPE NonStop to a modern, event-driven, Java-based architecture. This is not a simple migration. It’s a fundamental shift toward scalable, platform-independent systems built on ...

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