23 of 23 Java Software Engineer Jobs in London

exciting opportunity for a Java Software Engineer has arisen with a leading semiconductor company specialising in high-performance mixed-signal processing, based in London. This is an exciting opportunity for a Java Software Engineer to design and evolve cross-platform applications, SDKs, and developer … tooling. You’ll work closely with UX specialists, hardware teams, and software engineers to build polished internal tools that power advanced hardware configuration and tuning workflows. You will commit to a hybrid working model, with a minimum of one day per week onsite in the London office. Experience ...

Senior Software Engineer/Developer (Java Python Messaging) London/WFH to £140k Are you a Senior Software Engineer with strong Java development experience within finance/trading environments? You could be progressing your career in a hands-on Senior Software Engineer … that support fertility, pregnancy and menopause Employee Assistance Programme Retail discounts and more Continuous training and career progression opportunities Your role: As a Senior Software Engineer you'll design and develop real-time pricing and risk systems, collaborating closely with traders in a front office environment. ...

Backend Software Engineer/Developer (Java Kotlin AWS API) Hybrid WFH to £120k Would you like to progress your career in an impactful hands-on Backend Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded … using complex technology to improve access to patient records, enabling collaboration between healthcare providers and improving nursing and medical care. As a Backend Software Engineer you will collaborate with the CTO on the overall design and architecture of the products' tech stack, working on Greenfield applications. The tech ...

Lead Software Engineer - Java Have you got experience in setting technical vision, influencing system design, and guiding teams in delivering secure, scalable, and high-performing services? In this role, you will focus on technical leadership with mentoring others, driving engineering excellence, and ensuring the backend strategy aligns … backend discipline across teams. Lead design sessions, code reviews, and collaborative technical discussions. Skills & Experience Proven experience as a senior or lead backend engineer with Java (11+) and Spring Boot. Expertise in designing and leading backend architectures for complex systems. Strong understanding of AWS, Kubernetes, and modern microservice ...

Senior Software Engineer/Developer (Java Python Messaging) London/WFH to £140k Are you a Senior Software Engineer with strong Java development experience within finance/trading environments? You could be progressing your career in a hands-on Senior Software Engineer ...

Java 8 Software Engineer | £500 – £550 | Inside IR35 | 6 Months | Hybrid Remote We’re recruiting for experienced Java Engineers with strong experience working with Legacy Java versions (Ideally Java 8). This 6-Month contract is determined as Inside IR35 and is offered … Hybrid remote basis requiring 1/2 days per week of onsite work in Swindon or London. Key Requirements Strong commercial experience with Java 8 or similar legacy Java frameworks Solid skills in SQL, Spring Boot, and Hibernate development practices Proven ability to build microservices and reliable RESTful ...

Java Software Engineer – Data Engineering Up to £100,000 + bonus and benefits 4:1 hybrid in office – City of London Quant Capital is hiring for a small, high-performing market maker in London. This is a junior-to-mid role focused primarily on Java development … PostgreSQL. This is a growing team focused on data ingestion and building tooling for the wider firm. What you’ll do: Build and enhance Java backend services (APIs, batch jobs, integrations) used across the business Write clean, testable code with solid engineering discipline (testing, code review, debugging, production support ...

Backend Software Engineer | High-Growth HealthTech Scale-Up | London (Hybrid) We are working with a fast-growing digital healthcare platform. This is a rare opportunity to join a company where engineering genuinely shapes product, and where the work has measurable real-world impact at scale. The Role … Backend Software Engineer joining a collaborative, Agile engineering team, working across a portfolio of market-leading consumer health products. Every engineer here has meaningful ownership from day one. Day-to-day you'll be designing, building and testing new features, partnering closely with product and design, mentoring ...

Backend Software Engineer/Developer (Java Kotlin AWS API) Hybrid WFH to £120k Would you like to progress your career in an impactful hands-on Backend Software Engineer role working on Tech for Good? You could be joining a HealthTech Start-up, founded ...

Role: Software Engineer (Java) Level: Associate Manager and Specialist Location: London, Bristol, Manchester and Birmingham Salary: Competitive salary and package (Depending on level of experience) Please Note: Any offer of employment is subject to satisfactory BPSS and SC security clearance which requires 5 years continuous UK address ...

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 ...

Location: London (Hybrid) Salary: Up to £95,000 + bonus + benefits Permanent A leading Tier 1 investment bank is hiring a Java Software Engineer to join a front-office aligned Equities Risk technology team in London. This is a high-impact role focused on building … with a strong focus on: Improving latency, performance, and platform efficiency Building event-driven, distributed systems handling large volumes of market data Developing containerised Java services within a modern cloud-native stack Working in a front-office environment with direct business exposure This is an ideal opportunity ...

Role: Software Engineer (Java) – Up to £120,000 + Bonus + Package Salary: Up to £120,000 + Bonus + Package Location: London (Hybrid Working) Skills: Java as a main language This firm is an elite fintech company with exceptionally high standards, renowned for building cutting ...

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 ...

Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of $13 billion. Job Description- Job Title: Senior Java Engineer Must Haves- Java, Kafka, Microservices, Spring Boot, Postgres and AWS The Opportunity: We are looking for ambitious and motivated individuals … enabling customers to manage their finances and protect and build their financial futures. Purpose: To cope with our expansion, we are looking for Senior Java Engineers to join our mission and help us build a global product that's scalable, reliable and secure. You will work in tribes alongside ...

Senior Software Engineer (JVM based ecosystem/Backend leaning) £90,000 – £120,000 | London (Hybrid – 3 days in office) The Opportunity We’re partnered with a scaling, venture-backed SaaS business delivering a mobile-first platform used by large distributed workforces across global enterprise organisations. This … workflows, and integrate workplace tools into a single platform used by large global enterprises. Customers include large brands operating at significant scale, meaning the software is used daily by large, distributed user bases. The Engineering Environment & Culture You’ll be joining a company of around 130 people in total ...

Overview We are seeking a Senior Java Developer to join a regulated banking environment in London. You will work on cloud-native services using a modern Java stack, contributing to secure, resilient platforms that support critical banking products. Key Details Location: London, Greater London, United Kingdom Rate … Contract: Minimum 6 months, high potential to extend Work pattern: 2 days per week, onsite Responsibilities Design, build and maintain Java microservices and APIs using Spring Boot. Own delivery end-to-end: requirements clarification, implementation, testing, deployment and support. Improve engineering practices, code quality, observability and operational resilience. Work ...

Senior Java Developer (Kafka/AWS/Kubernetes) Contract – 12 Months £775 per day (Inside IR35) Hybrid: 3 days onsite in London/2 days WFH 🚀 The Role We’re looking for an experienced Senior Java Developer to join a high-performing engineering team delivering large-scale, cloud … long-term contract with strong extension potential, working on business-critical systems used at scale. 🧩 Key Responsibilities Design and develop high-performance Java microservices Build and maintain event-driven architectures using Kafka Develop and deploy services in AWS cloud environments Containerise and orchestrate applications using Kubernetes Collaborate with DevOps ...

Lead Engineer (Vice President) – Front Office Trading London (Hybrid) £120k - £130k + Bonus + Excellent Benefits Overview My client is looking to hire a Lead Engineer (VP) to play a key role in the transformation of Front Office technology. This is a high-impact position within a multi … across the full stack, influence architecture, and work closely with the business to deliver scalable, next-generation trading platforms. The Role As a Lead Engineer, you will combine hands-on engineering with technical leadership, shaping both the platform and engineering standards. Key responsibilities: Build and evolve a suite ...

Senior/Lead Backend Engineers - Greenfield Fintech Location: London Salary: £95,000 - £140,000 + bonus Would you like to take your software engineering career to the next level and be part of something truly special? If the answer is yes, then please read on. Our client is expanding … cloud-native systems using modern engineering practices. The environment is data-driven, product-focused, and centred around delivering real value to customers. Tech environment Java/Kotlin (JVM ecosystem) Microservices architecture Cloud-native (AWS/GCP) Spring/Spring Boot Docker & Kubernetes Messaging & streaming technologies Distributed tracing and observability ...

Software Engineers - Java/AWS (Mid to Lead Level) Location: London Type: Permanent Working Pattern: 4xFlex, 37.5 hours per week We are currently working with a client in the Aerospace & Defence sector who are expanding their London-based team and are looking to hire Software Engineers (Java … currently hold this, support will be provided throughout the application process. The Role: You will work under the guidance of a Software Engineering Lead or, at senior level, take on additional responsibility for technical delivery and supporting wider engineering activities. You may specialise in a particular area or work ...

role IS NOT SUITABLE for visa holders Salary : £60,00 - £65,000 Gross DOE About the Role We are seeking a highly skilled Senior Java Developer to join our FX eRisk IT team in London . This team is responsible for designing and delivering cutting‐edge components that enhance … Support deployment of components to development and test environments Participate in intraday and overnight support rotations as required Required Skills & Experience Technical Expertise Strong Java server-side development experience - minimum 4/5 years Proven experience building highly available, multithreaded, distributed systems Demonstrable expertise in low‐latency development ...

Leading institutional crypto trading firm who are growing their team in London and are looking for a new Java developer to work on stablecoins. The role covers from architecture to low-level development and is a unique opportunity to make an impact in a business that is projected … main player in the space. Requirements: 8+ years of hands-on experience developing in trading systems using Java Prior experience with Crypto is a requirement Strong preference for prior stablecoins experience Salary depends on experience. ...