21 of 21 Lead Java Developer Jobs in London

Lead Java Microservices AWS Developer Contract Hybrid (London) Job Title: Lead Java Microservices AWS Developer Location: London (Hybrid 2 days/week onsite) Contract Length: 6 Months (Inside IR35) Rate: £400£500/day Start Date: ASAP Mode: Contract Hybrid About the Role We are looking for an experienced Lead Java Microservices … Developer with expertise in AWS serverless architecture to join a fast-paced delivery team working on enterprise-grade applications. Youll play a lead role in developing secure, scalable, and high-performance solutions using cutting-edge cloud-native tools. Youll also work closely with cross-functional teams, mentor junior developers, and take ownership of features from inception through to … production. Key Responsibilities Lead the design and development of web applications using Java and AWS serverless services. Integrate AWS services like Lambda, S3, ECS Fargate, DynamoDB, SQS, and more. Implement secure, reusable code using modern frameworks and cloud patterns. Own the full development lifecycle from requirements gathering to deployment and monitoring. Develop CI/CD pipelines and deployment More ❯

Lead Java Developer/Software Engineer (Java Kafka Spring Boot) London/WFH to £120k Are you a skilled Java Developer with strong Java and real-time messaging experience combined with SC Clearance? You could be progressing your career in a senior, hands-on Lead Java Developer position at a … scale-up technology company with a successful workforce management solution used within the government, defence and other public sector clients. As a Lead Java Developer you will take a lead role in designing and developing secure, event driven, distributed backend systems for real-time operations, resilience and extensibility. You'll collaborate with engineers across the full … can work from home most of the time, meeting up with colleagues in the London office once a week. About you: You have significant experience as a backend focussed Java software engineering with leadership responsibilities You have strong Spring Boot, Kafka and event driven microservices experience with high throughput You have leadership, mentoring and coaching skills You have a More ❯

Lead Java Developer/Software Engineer (Java Kafka Spring Boot) London/WFH to £120k Are you a skilled Java Developer with strong Java and real-time messaging experience combined with SC Clearance? You could be progressing your career in a senior, hands-on Lead Java Developer position at a … scale-up technology company with a successful workforce management solution used within the government, defence and other public sector clients. As a Lead Java Developer you will take a lead role in designing and developing secure, event driven, distributed backend systems for real-time operations, resilience and extensibility. You'll collaborate with engineers across the full … can work from home most of the time, meeting up with colleagues in the London office once a week. About you: You have significant experience as a backend focussed Java software engineering with leadership responsibilities You have strong Spring Boot, Kafka and event driven microservices experience with high throughput You have leadership, mentoring and coaching skills You have a More ❯

Social network you want to login/join with: The Role: Lead AWS Cloud Engineer (Hands-on Java (8 - 17) a must) Experience: Min 12+ years Looking for someone with strong AWS experience, including expertise in AWS S3, Advanced Transfer Protocols, EKS clusters, and EC2 images. The candidate must have a minimum of Java 17. Our statement … reporting proposition is undergoing a technological transformation, focusing on the Bank’s AWS Cloud Migration strategy. Our goal is to lead by example, driving innovation and establishing cutting-edge development standards for future engineering teams. This transformation aims to redefine our delivery approach and enhance the customer-centric experience for our clients. Job Responsibilities: Engage with senior stakeholders to … translate complex requirements into technical specifications. Work autonomously in a high-trust environment and collaborate effectively with team members. Contribute proactively to enhancing our Java 17 applications. Develop and execute unit, component, integration, end-to-end, and performance tests. Understand streaming in Java and leverage it with AWS services. Extensive experience with Spring Boot framework. Implement various architecture More ❯

Lead Java Developer – FX/Trading! 💹💰 Salary: £120,000 - £130,000 + bonus (previously 25-40%) + benefits📍 Location: 3 days onsite, City of London Do you enjoy writing Java code day-to-day as well as line-managing your own team? Do you have a few years of commercial experience as a Software Engineering leader … leading Asian FX trading firm and work on cutting-edge trading solutions! This highly respected financial institution is expanding its London office and is on the lookout for a Lead Java Developer to guide one of the teams working on an App in the Cloud product. As the Lead Java Developer, you will:Be … a hands-on leader and write Java code, pair-program with your team and carry out code reviewsLine manage a team of approximately 4-5 Engineers, helping them grow in their careers and developmentContribute and discuss with different stakeholder in the business, notably the Product and Design teamsBe a key player in implementing the best software development methodologies and More ❯

Salary £104,000 - £130,000 per year Requirements We are seeking candidates with at least 10 years of experience in Java development. Candidates should have strong knowledge of Java 11, Spring, and AWS serverless architecture. Familiarity with AWS services such as Lambda, Cucumber, DevOps, Docker, JIRA, JUnit, Java, Jest, PostgreSQL, Security, Serverless, ServiceNow, Spring, TypeScript, Web, microservices More ❯

Citi's FX Technology team is seeking a passionate and skilled Lead Java Developer to join our rapidly growing Markets technology division. This is an exciting opportunity to work on cutting-edge financial technology solutions that drive global banking operations. As part of Citi's flagship FX area, you will play a pivotal role in shaping the … as well as direct interaction with clients and business teams to deliver impactful solutions in the FX market. Key Responsibilities Plan, design, and develop distributed, high-performance, and resilient Java applications for FX Technology systems. Collaborate with business product owners and internal users to interpret and implement business requirements. Collaborate with cross-functional teams to ensure seamless integration of … and deliver critical components of the platform while ensuring scalability and reliability. Provide L3 support and maintain high-quality code using TDD principles. Technical Skills: Strong knowledge of Core Java (JDK 21 and above) and multithreading concepts. Proficiency in designing and implementing efficient data structures and algorithms. Experience with SQL/NoSQL databases (e.g., Oracle, MySQL, Postgres, MongoDB, Cassandra More ❯

About the Role: We are seeking an experienced and visionary Technical Lead with deep expertise in Java Springboot, microservices architecture, and solution design to lead the backend engineering efforts of our enterprise platforms. You’ll work closely with engineering managers, architects, mobile teams, and product stakeholders to deliver scalable, secure, and maintainable solutions. Job Description: Java Lead engineer will play a critical role in the design, development, and implementation of mission - critical applications and systems. They leverage their extensive technical expertise and leadership skills to lead complex projects, mentor junior team members and drive innovation across the organization. They are proficient in all aspects of engineering disciplines, and they often have a deeper … understanding of architecture and design principles. They lead the technical direction and executions of deliveries, ensuring high quality solution aligned with business goals. Lead engineers drive continuous improvement and innovations, exploring new technologies and approaches to enhance team productivity and efficiency. Looking for someone who has clear basic fundamentals. CI/CD - Docker or Kubernetes concepts. Reactive Programming More ❯

About the Role: We are seeking an experienced and visionary Technical Lead with deep expertise in Java Springboot, microservices architecture, and solution design to lead the backend engineering efforts of our enterprise platforms. You’ll work closely with engineering managers, architects, mobile teams, and product stakeholders to deliver scalable, secure, and maintainable solutions. Job Description: Java Lead engineer will play a critical role in the design, development, and implementation of mission - critical applications and systems. They leverage their extensive technical expertise and leadership skills to lead complex projects, mentor junior team members and drive innovation across the organization. They are proficient in all aspects of engineering disciplines, and they often have a deeper … understanding of architecture and design principles. They lead the technical direction and executions of deliveries, ensuring high quality solution aligned with business goals. Lead engineers drive continuous improvement and innovations, exploring new technologies and approaches to enhance team productivity and efficiency. Looking for someone who has clear basic fundamentals. CI/CD - Docker or Kubernetes concepts. Reactive Programming More ❯

Social network you want to login/join with: Lead Java Developer London £90,000 - £95,000 An excellent opportunity awaits an experienced Java Developer with strong cloud infrastructure and architecture skills to join an exciting SaaS business. This role offers technical growth, variety, and strong development opportunities. The company is a profitable, maturing technology … infrastructure. You'll focus on boosting performance, driving efficiency, managing technical costs and debt, and helping scale and improve the reliability of the product's system. As a team lead, you'll mentor and provide technical guidance while working closely with the Software Engineering Manager. This role is fully office-based in London. The ideal candidate is a hands … on Software Engineer with strong experience in Java and Python, confident working with AWS cloud infrastructure including containerisation (Docker/Kubernetes), architecture, and scaling systems. They will have solid skills in building and managing data ingestion and processing pipelines (Kafka/Spring Batch) and be looking to lead a team in an office-based environment in London. This More ❯

Lead Java Developer London £90,000 - £95,000 An excellent opportunity awaits an experienced Java Developer with strong cloud infrastructure and architecture skills to join an exciting SaaS business. This role offers technical growth, variety, and strong development opportunities. The company is a profitable, maturing technology business delivering software and AI-driven solutions for industrial … infrastructure. You'll focus on boosting performance, driving efficiency, managing technical costs and debt, and helping scale and improve the reliability of the product's system. As a team lead, you'll mentor and provide technical guidance while working closely with the Software Engineering Manager. This role is fully office-based in London. The ideal candidate is a hands … on Software Engineer with strong experience in Java and Python, confident working with AWS cloud infrastructure including containerisation (Docker/Kubernetes), architecture, and scaling systems. They will have solid skills in building and managing data ingestion and processing pipelines (Kafka/Spring Batch) and be looking to lead a team in an office-based environment in London. This More ❯

Lead Java Developer London £90,000 - £95,000 + Progression + Pension An excellent opportunity awaits an experienced Java Developer with strong cloud infrastructure and architecture skills to join an exciting SaaS business. This role offers technical growth, variety, and strong development opportunities. The company is a profitable, maturing technology business delivering software and AI … infrastructure. You’ll focus on boosting performance, driving efficiency, managing technical costs and debt, and helping scale and improve the reliability of the product’s system. As a team lead, you’ll mentor and provide technical guidance while working closely with the Software Engineering Manager. This role is fully office-based in London. The ideal candidate is a hands … on Software Engineer with strong experience in Java and Python, confident working with AWS cloud infrastructure including containerisation (Docker/Kubernetes), architecture, and scaling systems. They will have solid skills in building and managing data ingestion and processing pipelines (Kafka/Spring Batch) and be looking to lead a team in an office-based environment in London. This More ❯

Lead Java Developer London £90,000 - £95,000 An excellent opportunity awaits an experienced Java Developer with strong cloud infrastructure and architecture skills to join an exciting SaaS business. This role offers technical growth, variety, and strong development opportunities.The company is a profitable, maturing technology business delivering software and AI-driven solutions for industrial sectors.In … infrastructure. You'll focus on boosting performance, driving efficiency, managing technical costs and debt, and helping scale and improve the reliability of the product's system. As a team lead, you'll mentor and provide technical guidance while working closely with the Software Engineering Manager. This role is fully office-based in London.The ideal candidate is a hands-on … Software Engineer with strong experience in Java and Python, confident working with AWS cloud infrastructure including containerisation (Docker/Kubernetes), architecture, and scaling systems. They will have solid skills in building and managing data ingestion and processing pipelines (Kafka/Spring Batch) and be looking to lead a team in an office-based environment in London.This is a More ❯

Lead Java Developer London £90,000 - £95,000 + Progression + Pension An excellent opportunity awaits an experienced Java Developer with strong cloud infrastructure and architecture skills to join an exciting SaaS business. This role offers technical growth, variety, and strong development opportunities. The company is a profitable, maturing technology business delivering software and AI … infrastructure. You’ll focus on boosting performance, driving efficiency, managing technical costs and debt, and helping scale and improve the reliability of the product’s system. As a team lead, you’ll mentor and provide technical guidance while working closely with the Software Engineering Manager. This role is fully office-based in London. The ideal candidate is a hands … on Software Engineer with strong experience in Java and Python, confident working with AWS cloud infrastructure including containerisation (Docker/Kubernetes), architecture, and scaling systems. They will have solid skills in building and managing data ingestion and processing pipelines (Kafka/Spring Batch) and be looking to lead a team in an office-based environment in London. This More ❯

across the world, our teams are pioneering faster, better ways to bring our client's most exciting ideas to life. Are you ready to make an impact? As a Lead Java FullStack Developer at Emergn, you'll help us shape Emergn's exciting future and play an important role in our growth. Join our Java team … and let's make an impact together! We want you to: Take responsibility over designing, coding, testing and deploying Java-based applications. Collaborate with cross-functional teams to define project scope, architecture and delivery timelines. Conduct code reviews and enforce coding standards and best practices. Troubleshoot, debug and optimize applications for performance and scalability. Maintain code integrity and organization … participate in all front, backend activities including testing. You're a perfect fit if you have: Excellent experience with development and Software Architecture design. Extensive backend development experience with Java - Springboot. Demonstrated frontend development experience with Angular. Experience working with AWS. Experience with PostgreSQL database. Knowledge of Design Patterns, Architecture Styles and CICD - Pipelines, Docker, etc. Nice to have More ❯

Lead Backend Developer/Software Engineer (Python Java AWS) London/WFH to £115k Are you a backend focussed software developer with leadership skills You could be progressing your career at a scale-up tech company (established 10 years), that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining … processes and delivering CO2 carbon neutral targets. You'll be working on complex and interesting systems and can enjoy a range of benefits and perks.As a Lead Backend Developer you'll head up a team of 4-5 within an Agile environment to design and develop, troubleshoot and solve complex software issues to help scale and future proof … the business. You'll focus on backend Python and Java engineering on AWS but there's a range of other tech in the stack (JavaScript, Vue.js, TypeScript and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job. There's an emphasis on getting stuff done More ❯

Vacancy for Lead Developer Java/Scala at The National Archives (UK) Vacancy for Lead Developer Java/Scala at The National Archives (UK) 23 January 2023 London Full-Time Person specification About you You are an enthusiastic and organised individual who is keen to join a growing team and make a positive contribution. … digitised history from the 11th to the early 21st century are all to be preserved in the system. We currently operate a series of workflows constructed predominantly in Scala, Java, XSLT and XML Schema running in a Linux environment and we expect Cloud services to play a large role in our future architecture. As a lead developer … will be responsible for helping to set technical direction, mentoring staff, undertaking code review as well as writing high quality, robust code yourself. You will be an expert in Java and/or Scala and familiarity with AWS and Linux would be an advantage. You will be thinking about the future impact of technology decisions. You will shape the More ❯

your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from Client Server Tech Recruiter - Software Engineering at Client-Server Lead Backend Developer/Software Engineer (Python Java AWS) London/WFH to £115k Are you a backend-focused software developer with leadership skills? You could be … Hammersmith office and two days remote. When in the office, you can enjoy onsite gym, barista coffee, and free breakfast. About you: You're an experienced, backend-focused software developer with Python, Java, and good knowledge of AWS. You're product-focused with good business acumen. You have a solid understanding of software architecture patterns, database optimisation, infrastructure … and self-development opportunities Onsite gym, partnership with Octopus Electric Vehicles, Evans Cycle to Work scheme, showers, and towels for cycling enthusiasts Apply now to learn more about this Lead Backend Developer/Software Engineer (Python Java AWS) role. At Client Server, we believe in a diverse workplace that allows people to play to their strengths and More ❯

Have you got experience leading a team while remaining hands-on and technically involved? Lead Java Developer – FX Trading Salary : up to £130k + bonus (25-50%) Location : London office 3 days a week We are delighted to be continuing our longstanding partnership with an FX Market Disruptor FinTech that has been acquired by a leading capital … market. They are looking for an experienced Java Developer who will fulfil a hands-on Lead role leading the next generation of Java Developers. They are looking for the following experience in Lead Java Developers: Core Java development Multithreading, concurrency, low latency Working in the financial sector e.g. FX, trading Building microservices in … Personal training & development budget Are you looking for a step up in your career to take on additional responsibilities while remaining technically hands-on? Apply now for this excellent Lead Java Developer opportunity! Please note : Due to compliancy reasons, we will only be able to consider applications based in and eligible to work in the UK. More ❯

Have you got experience leading a team while remaining hands-on and technically involved? Lead Java Developer – FX Trading Salary : up to £130k + bonus (25-50%) Location : London office 3 days a week We are delighted to be continuing our longstanding partnership with an FX Market Disruptor FinTech that has been acquired by a leading capital … market. They are looking for an experienced Java Developer who will fulfil a hands-on Lead role leading the next generation of Java Developers. They are looking for the following experience in Lead Java Developers: Core Java development Multithreading, concurrency, low latency Working in the financial sector e.g. FX, trading Building microservices in … Personal training & development budget Are you looking for a step up in your career to take on additional responsibilities while remaining technically hands-on? Apply now for this excellent Lead Java Developer opportunity! Please note : Due to compliancy reasons, we will only be able to consider applications based in and eligible to work in the UK. More ❯

Social network you want to login/join with: Senior Java Algorithm Developer/Tech Lead | European Financial Services Firm | £150K+, london col-narrow-left Client: Paragon Alpha - Hedge Fund Talent Business Location: london, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 1 Posted: 31.05.2025 Expiry Date: 15.07.2025 col-wide … Job Description: Paragon Alpha are partnered with a well-established Financial Services Firm who are hiring a Senior Java Developer to lead the buildout of a greenfield execution platform for their Equities desk in London. You will be central to the planning and development of this new build. Using your capacity to create high-quality trading algorithms … this new execution platform will remain highly optimised to meet the needs of my client’s elite team of traders. As a Tech Lead on this project, you will have the opportunity to recruit a new development team of engineers , to ensure the continued expansion and management of the platform across the desk. You will bring hands-on experience More ❯