1 to 25 of 27 Senior Java Software Engineer Jobs

Senior Java Software Engineer with proven Java, Spring Boot or Micronaut experience is required to join an early-stage green energy technology start-up building microservices-based SaaS applications for the renewable energy sector. You'll help design, deliver … experience ideally using React/MUI. This role will suit someone who has worked in a small, scale-up or product-focused SaaS software business and enjoys building resilient, maintainable software at pace. The role is potentially remote with meetups, although candidates who are accessible ...

Build and improve real-world Java desktop software in a small, influential engineering team where your technical decisions, ideas, and leadership will genuinely matter. Hands-on Java desktop software role focused on Swing-based commercial applications - not web development. About Us Semantics … multi-award-winning UK software company developing specialist desktop software used internationally within public safety and investigative environments. Our technology helps organisations process and review digital evidence more effectively, supporting work that can have genuine real-world impact in areas including child protection and public safety. ...

Role Senior Software Engineer Java .NET FTC Manager Lead Development Manager Location Hybrid Role Overview We are looking for 3 experienced Senior Developers, to support the ongoing evolution of the TMS platform, contributing to the development of modern, scalable solutions … complex transport and logistics environment. The role will involve designing, developing, and enhancing business-critical applications across a modern technology stack including Java 1721, Spring Boot 3.x, Angular 16/17, and Flutter/Dart. Working as part of a collaborative engineering team, you will help deliver high ...

Senior Software Engineer - Java/Spring/Full stack (Fully Remote) Location: Fully Remote Salary: £50,000 to £60,000 plus strong wider benefits package About the role Our client, a digital consultancy delivering into central government, are looking for a Software Engineer to join a team working on existing digital services and integrations. You will build and improve core systems and API integrations , delivering changes into production and improving how services operate at scale, working closely with client stakeholders and other teams. This is a hands ...

Contract Senior Software Engineer (Java or Python) | Inside IR35 Contract length: 6 months (with potential to extend) Location: London Working Environment: On-site You will be joining a private equity firm as a senior software engineer … grade code Provide production support, working with Platform and SRE teams as needed Key Requirements: Technical: 8+ years commercial experience in Python or Java across the full development lifecycle 5+ years in financial services (buy-side strongly preferred) Solid relational database skills; MS SQL Server a strong plus ...

Contract Senior Software Engineer (Java or Python) | Inside IR35 Contract length: 6 months (with potential to extend) Location: London Working Environment: On-site You will be joining a private equity firm as a senior software engineer … grade code Provide production support, working with Platform and SRE teams as needed Key Requirements: Technical: 8+ years commercial experience in Python or Java across the full development lifecycle 5+ years in financial services (buy-side strongly preferred) Solid relational database skills; MS SQL Server a strong plus ...

client is a growing, mission-led consultancy delivering secure and modern software solutions across the UK Government and Defence sectors. They are now looking for an experienced Principal Full Stack Software Engineer to join their collaborative and forward-thinking engineering team. This … exciting opportunity for a senior engineer who enjoys staying hands-on across both back-end and front-end development while also helping shape technical direction, mentoring teams, and driving engineering best practice. You will work on secure, scalable cloud-native platforms, modern web applications, APIs ...

Senior Software Engineer - Java/Spring/Full stack (Fully Remote) Location: Fully Remote Salary: £50,000 to £60,000 plus strong wider benefits package About the role Our client, a digital consultancy delivering into central government, are looking for a Software Engineer to join a team working on existing digital services and integrations click apply for full job details ...

Senior Software Engineer - (Java, Pricing API,) - 5 days - Retail - London Day rate: £400 - £500 (inside IR35) Duration: 6 months On site: 5 days per week Start: Now My client is looking for a Senior Java Developer with … building resilient systems at scale, this could be a great fit. What You'll Be Doing Designing and building scalable backend systems using Java and the JVM ecosystem Developing clean, maintainable code from product requirements Applying TDD/BDD practices and modern engineering principles Building and maintaining cloud ...

Senior Java Engineer – Low Latency Trading London/New York (Hybrid) Skills: Java, Java 23, Low Latency, Trading Platforms, Market Data, Aeron, Kafka, Chronicle, FIX Artemis Talent is partnering with a leading trading technology firm building high-performance, real-time … infrastructure across order management, execution, and market data where performance and reliability are critical. The Role Design and build low-latency, high-throughput Java systems Optimise performance across latency, concurrency, and memory Contribute to mission-critical trading platforms (OMS/EMS, market data) Work closely with engineering ...

Role Senior Software Engineer Java .NET FTC Manager Lead Development Manager Location Hybrid Role Overview We are looking for 3 experienced Senior Developers, to support the ongoing evolution of the TMS platform, contributing to the development of modern, scalable solutions ...

Senior Java Developer London/Hybrid Capital Markets Technology A growing capital markets technology business is looking to hire a Senior Java Developer to play a key role in building and evolving a cloud-native post-trade platform used across client reporting … management, and trading operations. This is a hands-on engineering role with strong exposure across platform architecture, distributed systems, cloud infrastructure, and modern software engineering practices. The position also offers a genuine progression path toward Head of Engineering responsibilities over time. The Role You will work closely with ...

seeking passionate technologists and strong communicators for a Senior Software Engineer - Java role. You'll work in empowered, multidisciplinary teams, tackling complex challenges for millions of players. ABOUT FANDUEL FanDuel Group is an innovative sports-tech entertainment company changing how consumers engage … Apply data structures and algorithms effectively Participate in team design, scoping, and prioritization discussions Learn business context and technologies behind your team's software Advocate passionately for customers THE GAME PLAN What You'll Do: Own parts of product and technology; become a subject matter expert Design software ...

Java Script Works is seeking a Senior Software Engineer based in Gosport, United Kingdom. The ideal candidate should be degree qualified in Software Engineering or Computer Science and possess expertise in languages such as C++, C#, and Java ...

client is a growing, mission-led consultancy delivering secure and modern software solutions across the UK Government and Defence sectors. They are now looking for an experienced Principal Full Stack Software Engineer to join their collaborative and forward-thinking engineering team. This … exciting opportunity for a senior engineer who enjoys staying hands-on across both back-end and front click apply for full job details ...

Lloyds Bank plc is looking for a Senior Software Engineer (CDS) in Bristol. In this role, you'll develop and maintain high-quality, secure customer data for the Group while working in a fast-paced environment. You will mentor peers and contribute to operational ...

Level: 9 UK Wide We are looking for a Senior Software Engineer who will be responsible for designing, developing, and deploying high-quality software solutions. You will work on complex software projects, contributing to the architecture, development, and improvement … software systems click apply for full job details ...

Morson Human Resources Limited is seeking a Senior Software Engineer to join TKMS ATLAS UK in Winfrith, Dorset. This role involves working on the development of marine-based autonomous systems, requiring on-site work 3–4 days per week. The ideal candidate will have … degree in software engineering, proven software delivery ability, and expertise in Java. Competitive benefits include progression opportunities and a generous pension scheme. #J-18808-Ljbffr ...

Prattwhitney is seeking a Senior Software Engineer in the UK. This full-time, on-site position involves designing and building software across various sectors. The ideal candidate will have full stack experience, strong Java skills, and familiarity with cloud platforms. … benefits including a contributory pension scheme and enhanced family policies. Join us to be part of a collaborative team focusing on delivering critical software solutions! #J-18808-Ljbffr ...

Build and improve real-world Java desktop software in a small, influential engineering team where your technical decisions, ideas, and leadership will genuinely matter. Hands-on Java desktop software role focused on Swing-based commercial applications - not web development. About Us Semantics … multi-award-winning UK software company developing specialist desktop software used internationally w... LFWQ1_UKTJ ...

Build and improve real-world Java desktop software in a small, influential engineering team where your technical decisions, ideas, and leadership will genuinely matter. Hands-on Java desktop software role focused on Swing-based commercial applications - not web development. About Us Semantics … multi-award-winning UK software company developing specialist desktop software used internationally w click apply for full job details ...

Title: Core Java/Backend Developer – Solution Delivery (Microservices) Location: London (8 days onsite/month) Contract: Inside IR35 Duration: 12 months + ext Start Date: ASAP Overview: We are looking for a hands-on Core Java Developer to support the migration of a legacy application … teams • Develop and deploy backend services while supporting and mentoring junior developers • Collaborate with architects, technical leads, and delivery stakeholders Technical Skills: • Core Java (strong hands-on) • Spring Boot/Microservices • Kafka/event-driven architecture • Docker & Kubernetes • Unix/Linux • OOD principles • TDD/BDD • Performance tuning ...

About Us Semantics 21 is a multi-award-winning UK software company developing specialist desktop software used internationally within public safety and investigative environments. Our technology helps organisations process and review digital evidence more effectively, supporting work that can have genuine real-world impact in areas ...

PLEASE NOTE THAT YOU MUST hold ILR or British citizenship We’re looking for a talented and experienced Java Developer to join our rapidly growing team. You’ll work on exciting, high‐impact programmes, using modern engineering and architectural principles to design and build innovative solutions … help drive digital transformation and shape the future of services across the UK. What you’ll do Design, develop and maintain high‐quality Java applications Contribute across the full software development lifecycle Build and secure RESTful APIs using Spring Boot/Spring MVC Collaborate with engineers ...

13+ billion. For more information on how we process your personal data, please refer to HCLTech’ s Candidate Data Privacy Notice. Must Have – Java, Low-latency, financial services background, and hands on coding skills "Our app relies heavily on async development, we use vertex. it takes significant time … significant intuition with that, and some modern messaging like Aeron or ZeroMQ." DETAILED RESPONSIBILITIES- - Lead the development, testing, and maintenance of low-latency Java applications. - Collaborate with cross-functional teams to gather requirements and design system architecture. - Optimize application performance and troubleshoot latency issues. - Mentor junior developers ...