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    Senior Software Engineer, Hardware Integrated Systems

    Expleo is seeking a Senior Software Engineer in Bristol to join a specialist team developing next-generation Air Defence Systems. This role involves creating robust software solutions across the entire product lifecycle, working closely with electronics and hardware teams to deliver high-quality outputs. ...

    Senior Real Time Ads Auction Engineer

    Roku, Inc. is seeking a senior engineer to lead the design and implementation of real-time ads auction systems that power Roku’s advertising across its platforms. The ideal candidate will have over 5 years of experience in building large-scale distributed systems and cloud infrastructure, as well as deep experti ...

    Senior Automation Test Engineer – Remote/Hybrid

    CACI Digital Experience (formerly Cyber-Duck) is seeking a Senior Test Automation Engineer in Cheltenham, UK. In this role, you will ensure the quality, reliability, and scalability of software products while developing automated testing solutions. Responsibilities include leading test strategies, collaborating ...

    Forward Deployed Engineer, AI in London MongoDB

    Proficiency in Full-Stack Development Proficiency in building modern, full-stack applications with back end development in Python, Node.js, or Java, and front end development with frameworks like React, Angular or Next.js. Experience with AI Solutions Understand and have implement ...

    Senior Automation Test Engineer – Remote/Hybrid

    CACI Digital Experience (formerly Cyber-Duck) is seeking a Senior Test Automation Engineer in Cheltenham, UK. In this role, you will ensure the quality, reliability, and scalability of software products while developing automated testing solutions. Responsibilities include leading test strategies, collaborating ...

    Senior Payments Platform Solutions Architect

    Icon Solutions Ltd, a fintech company, seeks a Solution Architect to design and lead technical solutions for its innovative payment framework, IPF. This role is vital for driving end-to-end client engagements and requires significant skills in architecture for concurrent, real-time systems. Applicants ...

    Senior Software Engineer — AVP | Hybrid & Growth

    Citibank (Switzerland) AG in Belfast is seeking a Senior Software Engineer to join their global technology team. In this role, you will build technical solutions to complex business challenges and collaborate closely with product teams. The ideal candidate will have extensive experience in software development, ...

    Senior Applied Scientist, Freight Pricing & Optimization

    Amazon is seeking a Senior Applied Scientist in Greater London to build machine learning and optimization models supporting its external freight business. The role demands 5+ years in model building along with a PhD in a relevant field or commensurate experience. Key tasks include designing scalable products, cr ...

    Interim CTO: Hands On Tech Leader Driving AI & Growth

    Barker Owen is seeking a Chief Technology Officer for a London-listed business with a strong engineering function. This hands-on, delivery-focused role is suitable for a VP of Engineering ready for their first CTO position. Responsibilities include setting engineering strategy, leading AI integration, and operat ...

    VP Software Engineer, AI Driven Cloud Trading Platform

    Goldman Sachs is seeking experienced software engineers to join their Consolidated Trade Ledger (CTL) initiative in Greater London. This role involves developing high-availability cloud-native services, leveraging AI tools, and working with a small team to modernize trading operations. Candidates should have a s ...

    Senior Director, Risk Technology & Platform Innovation

    Mondrian Alpha, a leading multi-strategy alternative investment manager in Greater London, is seeking a Head of Risk Technology to own and modernize its risk systems while managing a senior engineering team. The role involves collaborating with risk and technology stakeholders to deliver robust solutions, ensuri ...

    Remote Forward Deployment Engineer Backend & Cloud

    YLD is seeking a Forward Deployment Engineer to join their remote team. In this role, you will design and maintain backend systems using Golang and Java while collaborating with clients on technical decisions. You should have a strong background in cloud infrastructure, particularly with AWS and GCP. The job emp ...

    Mission Critical Full Stack Engineer for National Security

    Forwardrole is seeking a Full Stack Software Engineer to join their growing team in London focused on delivering mission-critical technology solutions for the National Security sector. The role involves designing, building, and improving secure software systems, working closely with engineers and stake ...

    Senior Backend Engineer — Go & Distributed Systems

    Monzo is seeking a backend engineer to join its dynamic team in Greater London. In this role, you will collaborate with product managers, designers, and engineers to build resilient systems that power the Monzo banking experience. Strong experience in building backend services and familiarity with strongly-ty ...

    Senior Backend Engineer — Go & Distributed Systems

    Monzo is seeking a backend engineer to join its dynamic team in Greater London. In this role, you will collaborate with product managers, designers, and engineers to build resilient systems that power the Monzo banking experience. Strong experience in building backend services and familiarity with strongly-ty ...

    AI Driven Full Stack Engineer | RAG & LLM Specialist

    Proficiency in Full-Stack Development Proficiency in building modern, full-stack applications with back end development in Python, Node.js, or Java, and front end development with frameworks like React, Angular or Next.js. Experience with AI Solutions Understand and have implement ...

    Graduate Quant Developer: Crypto Trading & FinTech

    B2C2 Ltd. in London is offering a Graduate Programme aimed at recent graduates eager to build a career at the intersection of traditional finance and cryptocurrency. This opportunity involves trading responsibilities within your first year, supported by experienced professionals. You will gain hands-on traini ...

    Senior Payments Backend Engineer — Equity (London)

    Opulent Mind, based in London, is looking for a Senior Backend Engineer to build systems handling complex money movement. This role focuses on design, implementation, and support of backend services in Java, contributing to a team environment led by the CTO. Candidates should have over 5 years of engin ...

    Senior Software Engineer, Hardware Integrated Systems

    Expleo is seeking a Senior Software Engineer in Bristol to join a specialist team developing next-generation Air Defence Systems. This role involves creating robust software solutions across the entire product lifecycle, working closely with electronics and hardware teams to deliver high-quality outputs. ...

    Senior Full Stack Engineer Flexible & Impactful Projects

    Solirius Reply is seeking a Full Stack Engineer to join its Software Engineering Practice in Greater London. In this exciting role, you will work across all stages of development, from requirement gathering to deployment, ensuring high-quality solutions. The ideal candidate will have substantial hands- ...

    Senior Director, Risk Technology & Platform Innovation

    Mondrian Alpha, a leading multi-strategy alternative investment manager in Greater London, is seeking a Head of Risk Technology to own and modernize its risk systems while managing a senior engineering team. The role involves collaborating with risk and technology stakeholders to deliver robust solutions, ensuri ...

    Senior ML Engineer: Build Scalable AI & Predictive Systems

    Trinitysoft Solutions in London is seeking a Machine Learning Engineer to enhance their ML systems. The ideal candidate will have a Bachelor's degree in a relevant field and at least two years of experience in a similar role. Responsibilities include designing machine learning systems, transforming data science ...

    Identity & FinCrime Software Engineer FinTech Security

    Starling, the UK's leading digital bank, is seeking passionate engineers for their Customer Identity & Fincrime team. This role offers a hybrid working environment, requiring a minimum office attendance of one day per week. Engineers will work with technologies like Java, AWS, and Kubernetes to develop critical ...

    Senior Software Engineer — AI Driven, High Impact IC

    A leading fintech company in Greater London is looking for a highly motivated engineer to enhance product quality and delivery efficiency. You will play a pivotal role in adopting AI-driven development tools and improving coding standards. With a focus on ethical finance, you will work closely with product teams ...

    Senior Backend Engineer — Hybrid, Scalable Backends

    Holland & Barrett is looking for a Senior Backend Engineer to enhance their digital experience. You will design scalable backend systems, build quality services for web and mobile, and mentor fellow engineers. This hybrid role requires strong expertise in Java, Spring Boot, and Golang, alongside a solid understa ...

    Senior Software Engineer Transit Tech & Scalable Systems

    A global leader in public transit solutions is looking for a Senior Software Engineer in Manchester to drive innovation in public transportation technology. The successful candidate will have at least 5 years of experience in software development, specializing in C++ and Java, along with cloud platform expertise ...

    Hybrid ML Ops Engineer Full Stack & Cloud Builder

    A leading digital bank in the UK is seeking a Full Stack Engineer who is comfortable with both front-end and back-end development. You will work on building the tooling necessary for our engineers, as well as writing and debugging code primarily in Java and React. The hybrid work model allows flexibility, suppor ...

    Data Platform Engineering Lead: Scale & Reliability

    hackajob is seeking an Engineering Lead to manage the Database Reliability Engineering team at Wise in the Greater London area. In this role, you will coach and mentor your team, drive high-impact solutions, and work collaboratively with other engineering leads to enhance reliability and scalability of systems. ...

    Agentic AI Application Architect

    Avanade is seeking an experienced AI Application Architect to join its Global Integrated Center of Excellence. This role involves designing intelligent, cloud-native applications leveraging agentic AI. The architect will modernize legacy systems, work collaboratively with teams, and drive AI adoption across vari ...

    Lead Backend Engineer, Scalable Data & AI Systems

    Palantir is seeking a Senior Backend Software Engineer in London to lead the architecture and delivery of scalable backend services for its Foundry platform. The role involves optimizing applications, collaborating with cross-functional teams, and developing high-performance backend features. Candidates should h ...

    Sports AI Engineer Data, LLMs & Innovation (Remote)

    Flutter UK & Ireland is seeking an AI Engineer to join its team in Leeds. This role combines a passion for sports with cutting-edge technical skills, focusing on developing innovative data products for racing and sports fans. Responsibilities include collaborating across teams to deliver impactful projects and m ...

    AVP Software Test Engineer – Hybrid Belfast

    Citibank (Switzerland) AG in Belfast is looking for a Software Test Engineer (AVP) to join their Global Fixed Income Trade Processing Team. The ideal candidate will have strong experience in automation testing (Selenium/Cypress), Java programming, and the ability to deliver testing strategies to ensure software ...

    Software Engineer Cybersecurity Analytics & Enforcement

    Fortinet, a leader in cybersecurity, is looking for a Software Engineer (Cybersecurity Analytics & Enforcement) based in Greater London. You will be responsible for designing innovative policies to detect cybersecurity violations using Starlark scripting, collaborating with cross-functional teams to enhance data ...

    Senior Software Engineer: Sell Side & Post Trade Systems

    FactSet Research Systems Inc. in Greater London is seeking a talented Senior Software Engineer to design and develop financial trading applications. This role requires 4+ years of experience, proficiency in Java and JavaScript, and a strong understanding of backend and frontend engineering. The chosen candidate ...

    Cloud Native Application Architect (Risk & Compliance)

    LSEG is seeking an Application Architect to help drive application design within the Risk Intelligence team. This role focuses on shaping cloud-native architectures and ensures alignment with architectural standards. Applicants should have experience with Java or Python, AWS-based applications, and strong unders ...

    Test Automation Engineers (IT) in Widecombe in the Moor CGI

    Expertise in Agile Environments Experience working in agile teams delivering projects and solutions can be beneficial for this role. AGILE and SAFe Software Development Skills Proficiency in software development is crucial. This includes languages such as Java an ...

    Senior Low Latency Rust Engineer – Global Markets (Hybrid)

    Citigroup Inc. is seeking a Senior Low Latency Rust Engineer to join their London-based High Performance Architectures team. This senior role focuses on application systems analysis, programming, and implementation, with a strong emphasis on low latency trading platforms. The successful candidate will spend 90% ...

    Senior Software Engineer Core Experiences (SDKs & Cloud)

    Speechify is looking for a Senior Software Engineer for its Core Experiences Team in Manchester, UK. The role involves building and maintaining SDKs that enhance the product experience across platforms. Responsibilities include optimizing functionality, collaborating with product teams, and developing cloud func ...

    Lead AI Software Engineer, Markets Tech & Credit Pre Trade

    J.P. MORGAN is looking for a Lead Software Engineer to enhance and deliver market-leading technology products. The ideal candidate should have over 5 years of experience in software design and development using Python, Java, or C++. They will work with AI systems to support eTrading capabilities and engage direc ...

    Hybrid Senior Fullstack Engineer: Build & Run Scalable Apps

    NTT DATA North America is hiring a Senior Fullstack Engineer based in Greater London. Candidates should have over 8 years of experience in developing and managing production systems. Key responsibilities include designing and operating complex fullstack applications, owning the software lifecycle, and collaborat ...

    Senior Full Stack Engineer: Ownership, AI, Stock Options

    Be-IT is seeking a Senior Engineer in Edinburgh who wants to have a meaningful impact on product development. In this role, you'll work with modern technologies like React and TypeScript on the frontend and have the flexibility to work with various backend technologies such as Node.js, Python, Java, Go, or C#. T ...

    Site Reliability Engineers

    Assistant Vice President, Site Reliability Engineer Location: London, England, United Kingdom Domain: Banking / Finance / Trading – Market Risk Skills: SRE experience with Python-based applications (not Java) Exposure to cloud technologies < ...

    National Security Full Stack Lead

    Forwardrole is seeking a Full Stack Software Lead in Gloucester to drive mission-critical solutions for National Security. You'll manage a team focused on back-end and front-end technologies, including Java and React, and mentor others while innovating in a collaborative environment. The role offers flexibility, ...

    Senior AWS Automation Architect – Serverless & Resilience

    Luxoft is seeking a Senior Technical Leader in Greater London to drive the architecture of automation solutions using AWS. You'll mentor a team of engineers, ensuring high-impact automation projects are aligned with business outcomes. The ideal candidate will have strong technical skills in cloud architecture, s ...

    Software Engineer – SC/DV Clearance, Hybrid

    Gemba Advantage is looking for a Software Engineer in London. This hybrid role offers £40,000 - £70,000 annually. As a part of an agile delivery team, you will work on high-impact systems for public sector organizations. The ideal candidate will have a solid foundation in software engineering principles with exp ...

    Lead Engineer, Payments Platform Modernisation

    Trust In SODA is looking for a Lead Engineer to support a major UK financial services client on a payments platform modernisation initiative. The position involves developing next-generation payment gateway capabilities and providing architectural leadership. Candidates should be experienced in payment systems a ...

    National Security Full Stack Lead

    Forwardrole is seeking a Full Stack Software Lead in Gloucester to drive mission-critical solutions for National Security. You'll manage a team focused on back-end and front-end technologies, including Java and React, and mentor others while innovating in a collaborative environment. The role offers flexibility, ...

    AI/ML Data Platform Architect — Cloud Data Mesh Leader

    A leading global financial services firm is seeking a Principal Architect to work within their Enterprise Technology, AI/ML & Data Platforms organization. The role involves designing data mesh architecture and maintaining data standards while leveraging AWS services to implement scalable data solutions. Ideal ca ...

    Lead Software Engineer, Margin Tech Global FinTech Hybrid

    Citibank (Switzerland) AG in Greater London seeks a Lead Software Engineer to shape the future of finance technology. The ideal candidate will work within a dynamic team, develop robust software solutions, and contribute to the automation of processes. You should possess hands-on experience in Java, Python, and ...

    Senior Fullstack Engineer | Hybrid London/Remote

    A leading technology services provider in Greater London is looking for a Senior Fullstack Engineer to take ownership of building and running production systems. The role requires 8+ years of experience in software engineering, with a strong focus on operational responsibilities. Candidates should have solid exp ...

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      Java Developer Java Monolith Jobs in United Kingdom Job Search Guide, Trends and Insights