1 to 25 of 52 Senior Java Engineer Jobs

Senior Java Engineer/Developer (AI) London/WFH to £110k Are you a technologist with a strong knowledge of AI and its practical uses within software engineering? You could be progressing your career in a senior, hands-on Senior Java Engineer role … budget for organising events and projects that foster an open, diverse and inclusive culture Plus a range of other perks Your role: As a Senior Java Engineer you'll join an experienced team working on AI innovation within the business. Your primary focus will be on using ...

Senior Java Engineer Location: London (x3 days a week onsite) Salary: Up to £80k DOE Type: Perm Job Description We are looking for a passionate Senior Java Engineer in London to lead the design and development of core product features and services that power … used by thousands of travellers on a daily basis. As a Senior Java Engineer for an loyalty program team, you will have the opportunity to make a massive impact on traveller's behaviour and booking experience. Specifically, you’ll be responsible for driving improvements to loyalty offerings ...

Senior Java Engineer | hybrid (2 days in office) | Up to £85k Want to work for a global technology company that helps businesses easily connect, manage, and scale their devices using secure and reliable mobile connectivity worldwide. We’re looking for a Senior Software Engineer … properly , using sound engineering theory and modern architectural patterns. What You’ll Be Doing Designing and building scalable, event-driven systems Working heavily with Java , applying strong OOP principles and design patterns Contributing to software and system architecture decisions Challenging ideas constructively and raising engineering standards Supporting the team ...

Senior Java Engineer – Actuarial Data Squad – Outside IR35 - Contract We’re looking for a Senior Java Engineer to join a high-profile project focused on backend systems that automate complex financial and actuarial processes. This is a hands-on role delivering backend solutions under … tight deadlines in a highly regulated environment. Key Responsibilities: Develop backend systems and APIs in Java, using the Spring ecosystem Work with AWS and infrastructure-as-code tools such as Terraform or Helm Design and implement scalable, production-ready systems for complex financial processes Collaborate with business and technical ...

Senior Java Engineer (Kubernetes, Kafka, SpringBoot) - Finance - London Daily rate: £550 - £750 (inside IR35) Duration: 12 months Hybrid: 8 days per month Start: ASAP A banking client of mine is looking for a Senior Java Engineer with Kafka and Docker skills to join … stages of systems development covering design, development, testing, live implementation and post implementation support. Strong hands-on Object-Oriented Design skills Strong core Java programming skills Experience of developing services/micro-services in Java Experience of developing containerised services using Docker and Kubernetes Hands-on SpringBoot skills ...

Role: Senior Java Engineer Location: Dublin (Hybrid) We are seeking an experienced Java Engineer with strong expertise in payment processing systems and SWIFT integration. This role involves designing and implementing secure, scalable services within a dynamic environment. Key Responsibilities Design and implement payment processing services … with a focus on SWIFT message flows (MT/MX). Configure and manage SWIFT endpoints, connectivity, and integration layers. Develop robust microservices using Java, Spring Boot, and Hibernate. Work with AXON SDK to deliver CQRS and event-sourced components. Collaborate with architecture and compliance teams to enhance cross ...

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 … 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 ...

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 … 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 ...

Senior Java Software Engineer Bristol (Hybrid – 3 days per week) Up to £75,000 (BOE) ClimateTech Want to use your backend skills to fight climate change? At Bohr, your code won’t just power systems, it will directly protect the planet. We’re tackling … helps utilities spot the largest methane leaks quickly, repair them efficiently, and dramatically reduce greenhouse gas emissions. The Role We’re looking for a Senior Backend Engineer to help design, build, and scale the cloud-based platforms that power our methane detection and emissions intelligence systems. ...

Java Engineer – 6-Month Contract – Hybrid (2 days on site, London) - Day Rate: Up to £700 (Inside IR35) Join a high-performing engineering team working on large-scale, high-availability systems used by millions. This role offers the chance to build and enhance complex backend services … modern, cloud-native environment. What you’ll be doing: Designing and developing performant, scalable backend systems using Java (up to Java 21). Building microservices with Spring Boot and related frameworks. Developing and maintaining RESTful APIs and event-driven systems. Writing clean, testable code and following TDD principles. ...

Java Engineer – 6-Month Contract – Hybrid (2 days on site, London) - Day Rate: Up to £700 (Inside IR35) Join a high-performing engineering team working on large-scale, high-availability systems used by millions. This role offers the chance to build and enhance complex backend services … modern, cloud-native environment. What you’ll be doing: Designing and developing performant, scalable backend systems using Java (up to Java 21). Building microservices with Spring Boot and related frameworks. Developing and maintaining RESTful APIs and event-driven systems. Writing clean, testable code and following TDD principles. ...

Java Software Engineer Edinburgh/Hybrid Up to £60,000 I am looking for an Java Software Engineer to join a leading international network security software company This is a fantastic opportunity to work with cutting-edge technology and make a real impact in the industry. … close-knit IT team supporting the internal operations and support a globally dispersed workforce. The Role: Software development and support of complex and algorithmic Java software within a Linux environment. Development and use of software APIs between components in a Linux system. Collaborate closely with other team members, product ...

Java Software Engineer Edinburgh/Hybrid Up to £60,000 I am looking for an Java Software Engineer to join a leading international network security software company This is a fantastic opportunity to work with cutting-edge technology and make a real impact in the industry. … close-knit IT team supporting the internal operations and support a globally dispersed workforce. The Role: Software development and support of complex and algorithmic Java software within a Linux environment. Development and use of software APIs between components in a Linux system. Collaborate closely with other team members, product ...

Senior Java Developer – London (Hybrid: 2 Days Onsite) We’re partnering with a leading global organisation that is scaling its engineering function and looking for a Senior Java Developer to join their London team. If you’re passionate about building data-driven platforms, enjoy solving complex … want to work with modern cloud-native technologies, this is the role for you. What You’ll Be Doing Designing, developing, and maintaining scalable Java applications using strong OOP principles. Playing an active role in requirements gathering and design workshops , contributing ideas and identifying gaps. Mentoring and pairing with ...

Senior Java Developer – London (Hybrid: 2 Days Onsite) We’re partnering with a leading global organisation that is scaling its engineering function and looking for a Senior Java Developer to join their London team. If you’re passionate about building data-driven platforms, enjoy solving complex … want to work with modern cloud-native technologies, this is the role for you. What You’ll Be Doing Designing, developing, and maintaining scalable Java applications using strong OOP principles. Playing an active role in requirements gathering and design workshops , contributing ideas and identifying gaps. Mentoring and pairing with ...

Senior Java/Kotlin Engineer – Technology Consultancy Location: Hybrid (2 days a week in London) Type: Full-time Salary - £130k Maximum Client They are forward-thinking technology consultancy that helps organisations solve complex problems with elegant, modern engineering. The team is built around curiosity, delivery excellence … finance, retail, healthtech, scale-ups, and the public sector to design and build high-impact digital products. The Role We’re looking for a Senior Java/Kotlin Engineer who thrives in solving real-world problems and building robust, scalable systems. You’ll work closely with cross ...

Senior Java/Kotlin Engineer – Technology Consultancy Location: Hybrid (2 days a week in London) Type: Full-time Salary - £130k Maximum Client They are forward-thinking technology consultancy that helps organisations solve complex problems with elegant, modern engineering. The team is built around curiosity, delivery excellence … finance, retail, healthtech, scale-ups, and the public sector to design and build high-impact digital products. The Role We’re looking for a Senior Java/Kotlin Engineer who thrives in solving real-world problems and building robust, scalable systems. You’ll work closely with cross ...

Senior Software Engineer/Developer (Java Spring Boot) London/WFH to £85k Are you a Software Engineer looking for an opportunity where you can make an impact? You could be progressing your career in a senior, hands-on role at a growing US based … tech company that provide a platform for gaming and gambling businesses to retain their customer base, as they expand their UK presence. As a Senior Software Engineer you will be instrumental in helping the company to bring all tech inhouse; you'll design and develop new features ...

Currently hiring a Senior Java Engineer to join a fixed income trading team - a high-performing group responsible for building and maintaining global trading systems used daily by traders and middle office teams. These systems handle complex financial instruments, from bonds and repos to interest rate swaps … exotic portfolios, with a strong focus on performance, reliability, and traceability. Key Responsibilities: Design, develop, test, and deploy high-quality software using Java and related technologies Conduct code reviews, ensuring clean, maintainable, and efficient code Mentor junior developers and promote technical excellence within the team Analyse and resolve performance ...

Role: Senior Java Developer Type: Contract (Outside IR35) Location: Farnborough, UK (hybrid – 3 days per week) About the Role We are seeking a highly skilled and experienced Senior Java Developer to design, develop, and maintain robust, scalable, and high-performance applications. The ideal candidate will have … deep expertise in Core Java , Spring Framework , and Microservices architecture , along with hands-on experience in AWS cloud services and automation tools like Terraform or Ansible. Required Skills & Qualifications Strong proficiency in Core Java , OOPs concepts , and Spring 11/17 Framework . Hands-on experience with Microservices ...

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 … 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 ...

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 … 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 ...

Prestigious opportunity for a Senior Applications Engineer with a Global Investment Management company expanding its new offices in Manchester.We are seeking a Senior Application Engineer (Backend cloud-based application development), with deep technical expertise and thought leadership. You will drive strategy for your area of expertise … involves mentoring junior staff, ensuring high-quality deliverables, promoting best practices like TDD and BDD, and leading engineering practices across the SDLC. As a Senior Applications Engineer you will be responsible for:- Providing technical expertise in Backend Development, supporting the team with effective solutions and practical insights Participating ...

Prestigious opportunity for a Senior Applications Engineer with a Global Investment Management company expanding its new offices in Manchester. We are seeking a Senior Application Engineer (Backend cloud-based application development), with deep technical expertise and thought leadership. You will drive strategy for your area … involves mentoring junior staff, ensuring high-quality deliverables, promoting best practices like TDD and BDD, and leading engineering practices across the SDLC. As a Senior Applications Engineer you will be responsible for:- Providing technical expertise in Backend Development, supporting the team with effective solutions and practical insights Participating ...

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 … such as e-commerce search functionality, streaming platform logins, or other large-scale consumer-facing systems. What We’re Looking For Proven experience developing Java microservices for high-traffic applications (retail, e-commerce, media, or streaming platforms). Hands-on experience with the full software lifecycle in agile environments ...