21 of 21 Java Software Engineer Jobs in London

Backend Software Engineer/SRE (Java JVM) London/WFH to £110k Are you a Backend Software Engineer/SRE with a strong knowledge of Java and JVM internals? You could be progressing your career in an impactful role at a global CFD trading … company that has been consistently voted as one of the UKs top employers. As a Backend Software Engineer/SRE you will collaborate with development teams, as a trusted technical advisor to influence system design, ensuring reliability standards and driving improvements across the platform. You'll have ...

Java Software Engineer Active SC Clearance Contract Length: Initial 3-month contract £400-£480pd (Inside IR35) Working Pattern: Flexible fortnightly on-site visit to a convenient Available Locations: Glasgow, Newcastle, Leeds, Sheffield, Manchester, Birmingham, Blackpool, Cardiff, London Role Overview We are seeking an experienced Java Software Engineer to join an agile delivery team working on modern, scalable services. You will design, build, and test high-quality software in a collaborative, fast-paced environment, contributing to systems used by both internal and external users. Key Responsibilities Design, develop, and maintain Java-based microservices ...

Java Software Engineer Active SC Clearance Contract Length: Initial 3-month contract £400-£480pd (Inside IR35) Working Pattern: Flexible fortnightly on-site visit to a convenient Available Locations: Glasgow, Newcastle, Leeds, Sheffield, Manchester, Birmingham, Blackpool, Cardiff, London Role Overview We are seeking an experienced Java Software Engineer to join an agile delivery team working on modern, click apply for full job details ...

Full Stack Java Software Engineer (React.Js) required for my client in London. Paying £50k-£75k. My client are a growing B2B & B2C technology company. They require a Full Stack Java Software Engineer (React.Js) to join them on a full-time basis. This role … remote but there is expectation to ideally go to the office 1 day per week in London. Required experience Java 18+ experience Spring/Spring Boot PostgreSQL or similar Maven/Gradle REST APIs Microservices React.Js Desirable: Vue.Js experience ...

Lead Software Engineer – Java Microservices | London (1 day per week on-site) | £74,000 – £92,000 + Package We’re partnering with a leading UK bank to recruit a Lead Software Engineer with strong Java and microservices expertise. This is a hands-on role … building high-performance, scalable software for real-world, high-traffic systems. About the Role You’ll join a permanent feature team, taking end-to-end ownership of services, from design and development to testing, deployment, and optimisation. Your focus will be on building robust microservices that support high-traffic ...

Senior Java Engineer (Core Java) £100,000 - £130,000 Central London - Hybrid A high-growth, privately backed Enterprise SaaS company is seeking a Senior Core Java Engineer to join its London-based engineering team. The organisation builds large-scale, mission-critical platforms used by some … throughput distributed systems, solving complex engineering problems at scale within a collaborative, high-performing team. Key Responsibilities Design, build and maintain high-performance distributed Java services Contribute across design, development, testing, deployment and support Collaborate closely with other engineers to deliver customer-centric solutions Mentor and be mentored within ...

Role: Software Engineer Location: 1-2 days a week in London Salary: £80,000 - £115,000 + Bonus Are you a motivated java micro-services specialised software engineer looking to elevate your career? This is an opportunity for a technically minded individual to be designing … liaising with principal engineers, architects in the domain and other key stakeholders to understand how the platform works We are looking for a senior engineer we can find to take part in some of the largest up coming projects in the banking industry Ideal Candidate: We're looking ...

Role: Software Engineer (Java) Location: London Salary: Competitive salary and package (Depending on level of experience) Any offer of employment is subject to satisfactory BPSS and the candidate being granted a level of security clearance which typically requires 10 years continuous UK address history, usually including ...

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 developing impactful … contribute to projects such as AI-powered tools for analysts and operators, secure data pipelines, and innovative prototypes that explore new frontiers in software capability. You’ll become part of a tight-knit, highly capable engineering group that values independence, precision, and tangible outcomes. This is a place ...

Java Software Engineer with around 3-6 years professional, post-graduate experience sought by one of the original Quantitative Hedge Funds, with a 20+ year track-record. The firm are renowned for a healthy, supportive, and collegiate working environment and culture, with no siloes, boasting an industry … leading staff tenure. This hire will be part of a core Software Engineering team, responsible for the vast majority of all applications in the business from front-to-back office.This includes Order Management & Trading Execution, Risk & Finance, Straight-Through-Processing and Corporate Functions. The team deal directly with business ...

Level Software Engineer (Java/AWS) Contract | £350 per day Inside IR35 | Hybrid (1 day pw London) We’re supporting a large, well-established UK organisation on a key digital delivery programme and are looking for two mid-level Software Engineers to join an existing engineering … cloud-based services. The role You’ll be working as part of a cross-functional engineering team, contributing to the development and maintenance of Java-based microservices running in an AWS environment. The team values: Clear communication Collaborative problem-solving Strong testing practices Pragmatic, well-documented solutions This ...

Backend Software Engineer/SRE (Java JVM) London/WFH to £110k Are you a Backend Software Engineer/SRE with a strong knowledge of Java and JVM internals? You could be progressing your career in an impactful role at a global CFD trading ...

looking for a Contract Java Software Engineer to join my client in their FinTech Business Unit. 6 month | Inside IR35 | Hybrid (1x week London) | £550 per day What you'll do: Develop scalable, high-performance systems and microservices Solve complex technical challenges and advocate best practices Support … compliance processes with advanced tooling and analytics Requirements : - Java + least one additional server-side language (e.g., Python, Go, Scala, etc.) - Experience with multiple data storage technologies (e.g., MySQL, Hadoop, Cassandra ) - Familiarity with AWS services (RDS, Step Functions, EC2, Kinesis) - Experience defining and upholding SLOs/KPIs and participating ...

Contract Software Engineer (x2) - Java | £325 per day | Inside IR35 Start Date: ASAP End Date: 30th June 2026 Location: London (Remote, one day per week on-site) Arrangement: Hybrid/Mostly Remote We're looking for two mid-level Software Engineers to join a collaborative … forward-thinking team on a six-month contract. You'll be working on modern software solutions within a supportive Agile environment that values clean code, test-driven principles, and continuous improvement. What You'll Be Doing Designing, developing, testing, and maintaining Java-based applications. Building and deploying solutions ...

Contract Software Engineer (x2) - Java £325 per day Inside IR35 Start Date: ASAP End Date: 30th June 2026 Location: London (Remote, one day per week on-site) Arrangement: Hybrid/Mostly Remote We're looking for two mid-level Software Engineers to join a collaborative … forward-thinking team on a six-month contract. You'll be working on modern software solutions within a supportive Agile envir click apply for full job details ...

Please find the Job Description:- Role: Senior Java Developer Location: Farnborough/UK (Hybrid) Hybrid mode of work Exp range:8+ years Mandatory skills: Java Springboot, Java 17/11, AWS, Pipeline, Financial domain, Spark. JD: Java Tech Lead job involves leading and mentoring a Java development team, analyzing and designing software solutions, ensuring adherence to best practices and coding standards, and collaborating with product managers and other stakeholders to deliver high-quality products for the financial services industry. Key responsibilities include coding, debugging, and maintaining applications, conducting code reviews, troubleshooting complex technical issues ...

Lead Software Engineer Lead (Java/Python, Cloud & AI) Location : London (5 days in office) Duration 12 months Competitive Day Rate (Inside IR35) Key Expectations from the role: Technical leadership and architecture Delivery ownership AI/ML solution stewardship People leadership Stakeholder and product partnership Controls … governance Key Skills: Expert level proficiency in Java and/or Python. Cloud-native systems on AWS (compute, storage, networking, IAM, KMS, observability). Demonstrated success in leading teams Deep understanding of AI/ML solutions implementation, with emphasis on LLM applications and retrieval-augmented generation. Expertise in modern ...

Senior Java Developer - Java, Springboot & AWS – paying up to £650/day (Inside IR35) – Hybrid (2x a week - London) – 6 month contract Our client is seeking a Senior Java Developer who is passionate about clean code, cloud-native systems, and building technology that makes a real impact. … unique opportunity to work in an agile, high-ownership engineering culture. What You'll Be Doing: Build and scale backend services using Java and Spring Boot Shape a modern microservices architecture for a high-availability platform Deploy and manage services in AWS with Kubernetes (EKS) Design, implement ...

Java Developer Join a high-impact Core Technology team at a leading hedge fund. About the Company This firm is a major player in the space, a multi-strategy hedge fund with a strong focus on systematic and quantitative trading. Founded by industry veterans, it combines deep financial expertise … with advanced software engineering to manage institutional capital globally. What You’ll Do Design and build high impact internal systems using Java Own projects end-to-end: from architecture to deployment Collaborate with analysts to solve real-world business problems Support and mentor junior team members on coding ...

Title: Java Developer (Electronic Trading Platform - FIC) Contract Type: Outside IR35 Location: London Day Rate: Up to £950 per day Flexible Hybrid working: 1-2 days a week in London City offices Client: Prestigious Investment Bank Industry: Investment Banking Duration: 12 months +. Also open to contract to permanent … conversions Overview: We are seeking an experienced Java Developer to join a high-profile investment banking client in London on a contract basis. The successful candidate will work on an Electronic Trading Platform for the FIC business . This is an exciting opportunity to contribute to the development ...

Level Java Developer – Trading £100,000 Plus Large Prop Bonus Quant Capital is urgently looking for a Core Java Developer to join a well known trading firm. No experience of finance is needed, finance isn’t what this firm does, tech is. Our client is an innovative tech … order of multi millions not 3 guys in a shed. The role: This role and would suit a candidate with 5-7 years of Java Development experience. The successful candidate will be a top tier Java developer (or aspiring, half of the team don’t have a comp ...