Job Description Synechron is looking for an experienced SeniorJava Developer with strong hands-on experience in Java, Spring Boot, Microservices, messaging services, databases, and CI/CD pipelines. This role involves joining an international team on a long-term (multi-year) programme of work with a … within a fast-growing and friendly team of over 100 members. Salary: £80K DOE + Discretionary Bonus + Benefits including 14% Pension The Role: Java Spring Boot/Microservices RESTful APIs Kafka CI/CD Database concepts Statement Synechron is proud to be an equal opportunity employer. Our Equity More ❯
Cambridge, England, United Kingdom Hybrid / WFH Options
DiverseJobsMatter
i2, a Harris Computer company, are seeking a skilled SeniorJava Developer with strong skills in relational database development, to join one of our core development teams and help us enhance our i2 products and services, which are used by more than 2000 law enforcement, national security, military … and major commercial organizations in 130 countries across the world. The ideal candidate will have a deep understanding of Java enterprise development, and substantial experience with designing, implementing, and optimizing solutions using relational databases. If you are passionate about creating efficient and scalable solutions, have a strong command of … duties and responsibilities will include (but will not be limited to): Collaborating to develop and maintain efficient, reusable, and reliable server-side logic using Java and its enterprise libraries Working closely with cross-functional teams, including UI/UX designers, frontend developers, and product managers, to ship new full More ❯
and we provide large-scale technologic solutions to big companies. What are we looking for? For our specialized team, we are looking for a Senior Software Engineer , with at least 6 years of experience in the position. About the Role As a Senior Software Engineer, you … deployments. • Feature Leadership & Stakeholder Partnership Own the delivery of major features, coordinating with Product, UX, and Operations to meet business objectives. Act as a senior technical liaison for stakeholders-translating strategic goals into actionable roadmaps. • Quality & Engineering Standards Establish and enforce coding standards, testing requirements (TDD/BDD), and … performance benchmarks. Introduce and evangelize new tools, frameworks, and processes that elevate team productivity and code quality. • Mentorship & Organizational Impact Mentor senior and mid-level engineers-guiding career growth, architectural thinking, and technical decision-making. Lead brown-bags, hackathons, and guild meetings to foster a culture of continuous learning More ❯
Manchester, England, United Kingdom Hybrid / WFH Options
System Loco
creating intelligent, scalable solutions to connect devices, analyse data, and enhance business performance. With an exciting growth trajectory, we are looking for a talented SeniorJava Developer to join our team and help shape the future of IoT solutions. Role As part of the server development team, you … production systems Working with product owners to help define future ambitions Performing code reviews, providing constructive feedback, and mentoring other developers Highly skilled with Java & SpringBoot Proven software delivery experience on numerous API/Micro-services projects Knowledge of NoSQL, ideally MongoDB Ability to robustly test and validate software … haves: Experience with Containerisation and/or knowledge of Docker AWS experience, specifically Lambda, SNS, SQS, API Gateway CI/CD with GitHub Actions Java 21, using Spring Boot & Grizzly Seniority level Mid-Senior level Employment type Full-time Job function Engineering and Information Technology #J-18808-Ljbffr More ❯
Senior Software Engineer with Python and Java Our Client is looking to recruit brilliant Software Engineer with upwards of 5 to 10 years solid proven track record of developing complex applications with Python coupled with Machine Learning and ideally Go. We’re looking to recruit initially … very interested to see your profile. Must be 100% trustworthy with real integrity ?" this is a highly sensitive project. Key skills: Python, Machine Learning, Java The Client would like to see solid expertise of working with and developing complex applications with Java. Excellence is vital. Ideally have security clearance. More ❯
London, England, United Kingdom Hybrid / WFH Options
JR United Kingdom
Yes col-narrow-right Job Views: 4 Posted: 26.04.2025 Expiry Date: 10.06.2025 col-wide Job Description: A leading investment bank is looking for a Java Software Developer to join its cross-asset pricing and risk team in London. This is a permanent Front Office role offering deep technical challenges … on performance, scalability, and clean architecture Contribute to the re-architecture of pricing for speed and efficiency (e.g., pre-calculated sensitivities) Tech Environment Core Java (Java 17+), multithreaded – essential Python – highly desirable React – small part of the stack, nice to have Messaging tech: Solace (Ideal), Aeron, or Kafka … etc. Candidate Profile 8+ years of experience in Java development Strong Front Office exposure – must have Pricing or risk platform experience is a plus Confident communicator with the ability (and experience) to work closely with the desk and quants Why Apply? Hybrid working: 2–3 days from home Emphasis More ❯
London, England, United Kingdom Hybrid / WFH Options
JR United Kingdom
they’re building full-stack applications with sleek UX, robust architecture, and intelligent automation that streamlines clinical pathways and enhances patient outcomes. As a SeniorJava Developer, you’ll be part of a small, agile team where your voice truly matters. Whether you prefer backend or full-stack … requirements gathering and behavior-driven development (BDD). This is a high-impact role where your work directly supports better healthcare delivery. Tech Stack: Java, Spring Boot, Microservices, React, MySQL, GCP, RabbitMQ, TDD, BDD. What we’re looking for: A clear communicator with a proactive, team-oriented mindset £70k More ❯
Senior Software Engineer, Data Processing Performance, Java/C++ October 19, 2023 United Kingdom Remote Full-time Flexible Hours ABOUT XONAI We are a team of passionate engineers committed to building the best-in-class petabyte-scale data infrastructure optimization platform that combines hardware acceleration with performance … support to our customers, and expand our solution to new markets. To learn more about us, visit our blog. About the role As a Senior Software Engineer for this role, you will collaborate with the founding team to expand the integration of our custom compiler with the query … transforming 10s of petabytes every day where Xonai is being deployed. What you will do Implement extensible optimizations for data processing algorithms mainly in Java but also C++. Implement code generation (targeting a custom DSL) for individual SQL operations. Establish rigorous benchmarking standards to assess the impact of performance More ❯
the big Banking organisations here in the Netherlands. For one of our top Banking client based in Amsterdam we are looking for a Software Engineer with experience in Java within Sailpoint environments. 36- 40 hours 2 year project Hybrid (1-2 days per week onsite) The project: To … and development . DevOps Experience : Ability to operate in a continuous integration/deployment environment, which includes automating pipelines and maintaining runtime stability . Java Expertise (v17) : Either : 5+ years in Java with strong SailPoint IIQ experience (including use of Java APIs). Or : 10+ years in … Java and a willingness to learn SailPoint IIQ Java APIs - indicating openness to train someone strong in Java who can pick up SailPoint. CI/CD Tools Knowledge : Bitbucket/GIT Nexus Repository Ansible Azure DevOps Bonus Points: Linux experience - indicates backend/system-level comfort and More ❯
with a well-known technology business based in Edinburgh who are looking to grow their hugely successful engineering team and are looking for a Senior Software Engineer in the Java space to work on customer facing applications and systems. There is a huge focus on innovation with … some major projects in the works. You will have experience developing highly scalable and available back-end systems & API’s using Java and Cloud based infrastructure and technologies ideally AWS. Although this is predominantly a back-end role, there will also be the option to get involved in some … operate a Hybrid model where it is usually 1 day a week onsite in their modern Edinburgh office. Experience Strong back-end experience with Java Experience with AWS as well as understanding DevOps concepts such as IaC (we use Terraform) Experience with Kafka and event streaming Experience working on More ❯
required: Yes Job Views: 5 Posted: 24.04.2025 Expiry Date: 08.06.2025 Job Description: Hybrid Role - 2 days a week in Manchester offices We are hiring SeniorJava Full Stack Developers for a global insurance business that is disrupting the industry. The company is expanding its software development team in More ❯
London, England, United Kingdom Hybrid / WFH Options
CipherTek Recruitment
your skills and experience — talk with your recruiter to learn more. Base pay range Direct message the job poster from CipherTek Recruitment Job Title: Java Developer (Electronic Trading Platform - FIC) Location: London Day Rate: Up to £850 per day Flexible Hybrid working: 1-2 days a week in London … City offices Duration: 12 months + 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 … for real-time decision-making. Integrate with Instrumentation Platforms : Connect with Prometheus and Geneos for monitoring, diagnostics, and system health checks. Desired technical Skills: Java Expertise: Extensive experience with Core Java , focusing on performance tuning, multithreading , and garbage collection optimization . FIC or similar business knowledge: Strong understanding More ❯
London, England, United Kingdom Hybrid / WFH Options
Owen Thomas | Pending B Corp™
Senior Backend Engineer Contractor (Java, Python, Rust + Ruby nice-to-have) | Fully Remote/EU-Based | Rate £550-650pd, Outside IR35 | 12-months Contract Length We're supporting a fast-moving client at huge global scale, that is in need of a Senior Backend … Contractor with deep experience across Java and Python , strong exposure to Rust , and ideally a touch of Ruby . This is a high-impact freelance role within a tech-driven established team - building scalable systems in a modern backend environment. What You'll Be Doing: Designing and building robust … backend services across Java, Python, and Rust-based systems Collaborating with product and platform teams to scale critical infrastructure Contributing to performance optimisation, secure coding, and clean architecture decisions Bringing in best practices across multiple programming paradigms and languages Ideally, supporting legacy Ruby codebases or integrations where needed Core More ❯
London, Canary Wharf (Hybrid) Engagement: Long-term engagement within one of the world’s most prominent banking institutions This is more than just a Java development job — it’s an opportunity to work at the core of a global financial powerhouse, supporting a large-scale transformation of how secure … London’s iconic Canary Wharf, with a hybrid model that supports flexibility and work-life balance. If you're passionate about writing clean, modern Java code and want to see your work used at a global scale, this is the kind of long-term project that builds real career … momentum. What You’ll Do 🔹 Develop and maintain internal Java-based tools and microservices that improve how developers build secure applications 🔹 Contribute to enterprise-wide initiatives around software composition analysis and supply chain transparency 🔹 Work closely with platform engineers, security experts, and software developers across multiple regions 🔹 Help standardize More ❯
City of London, London, United Kingdom Hybrid / WFH Options
RE Partners
London, Canary Wharf (Hybrid) Engagement: Long-term engagement within one of the world’s most prominent banking institutions This is more than just a Java development job — it’s an opportunity to work at the core of a global financial powerhouse, supporting a large-scale transformation of how secure … London’s iconic Canary Wharf, with a hybrid model that supports flexibility and work-life balance. If you're passionate about writing clean, modern Java code and want to see your work used at a global scale, this is the kind of long-term project that builds real career … momentum. What You’ll Do 🔹 Develop and maintain internal Java-based tools and microservices that improve how developers build secure applications 🔹 Contribute to enterprise-wide initiatives around software composition analysis and supply chain transparency 🔹 Work closely with platform engineers, security experts, and software developers across multiple regions 🔹 Help standardize More ❯
South East London, England, United Kingdom Hybrid / WFH Options
RE Partners
London, Canary Wharf (Hybrid) Engagement: Long-term engagement within one of the world’s most prominent banking institutions This is more than just a Java development job — it’s an opportunity to work at the core of a global financial powerhouse, supporting a large-scale transformation of how secure … London’s iconic Canary Wharf, with a hybrid model that supports flexibility and work-life balance. If you're passionate about writing clean, modern Java code and want to see your work used at a global scale, this is the kind of long-term project that builds real career … momentum. What You’ll Do Develop and maintain internal Java-based tools and microservices that improve how developers build secure applications Contribute to enterprise-wide initiatives around software composition analysis and supply chain transparency Work closely with platform engineers, security experts, and software developers across multiple regions Help standardize More ❯
world while gaining meaningful experience across a variety of disciplines. About The Team The Roku Enterprise Engineering team is seeking an experienced and versatile Senior Software Engineer to develop scalable platform services on which we run our company and ensure we scale to meet our rapid employee and … business growth. About the role As a senior technical lead, you consider yourself a platform services developer and developing innovative solutions using modern software frameworks and paradigms. You are self-driven and problem solver, with a strong background in building large-scale software platform and applications. You are execution … tier, highly scalable, distributed web application Deep understanding in software architecture, object-oriented design principles, and data structures Extensive experience in developing microservices using Java, Python Experience in distributed computing frameworks like - Hive/Hadoop, Apache Spark. Good experience in Test driven development and automating test cases using JavaMore ❯
A forward-thinking engineering organisation is seeking a Senior Software Engineer to play a key role in the development of a new greenfield platform designed to transform how data is ingested, analysed, and visualised across critical infrastructure. You’ll join a cross-functional, agile team of software engineers … from design through to deployment and ongoing support Championing Agile and contributing to continuous improvement of delivery processes Designing and building backend systems using Java, Spring, and GraphQL Evaluating technologies and contributing to architecture decisions Supporting developer tools such as CI/CD pipelines and test frameworks Mentoring other … standards and best practices Working closely with stakeholders to align software with business needs What you’ll need: Strong experience building production systems with Java and the Spring ecosystem Proven backend system design expertise (APIs, data layers, infrastructure) Experience with GraphQL and REST APIs Proficient in writing testable code More ❯
telecoms and many more. This role allows for direct impact on the reliability and performance of our customers' applications. We're looking for a Senior Fullstack Engineer & Team Captain who is passionate about building robust APIs and intuitive web applications that give us and our customer unprecedented control … these agents. The Team Captain part of the role sees a team of 5 strong engineers being led and enabled by a passionate, driven senior engineer. Why you will love being a Dynatracer Dynatrace is a leader in unified observability and security. We provide a culture of excellence with … securely, and enable flawless digital experiences. Over 50% of the Fortune 100 companies are current customers of Dynatrace. Aufgaben Your role as a Fullstack Engineer Design and develop scalable backend services in Java to manage millions of OneAgent processes Build modern, responsive frontend apps using React to visualize More ❯
telecoms and many more. This role allows for direct impact on the reliability and performance of our customers' applications. We're looking for a Senior Fullstack Engineer & Team Captain who is passionate about building robust APIs and intuitive web applications that give us and our customer unprecedented control … these agents. The Team Captain part of the role sees a team of 5 strong engineers being led and enabled by a passionate, driven senior engineer. Why you will love being a Dynatracer Dynatrace is a leader in unified observability and security. We provide a culture of excellence with … securely, and enable flawless digital experiences. Over 50% of the Fortune 100 companies are current customers of Dynatrace. Aufgaben Your role as a Fullstack Engineer Design and develop scalable backend services in Java to manage millions of OneAgent processes Build modern, responsive frontend apps using React to visualize More ❯
Your Remote Tech Recruiter is engaged with an established Tech Consultancy who are looking to recruit Senior Developers with experience building applications in Java. They're a global organisation (operate across the US, UK, Europe and Asia), with a focus on delivering end-to-end digital transformation projects across … client projects, with an overriding focus on solving problems (rather than creating them!). In terms of this role, they're looking to add Senior Developers to their engineering function, with a specific focus on some of their customers in the Financial Services space. The work is complex, the … tech is pretty cool, and they're looking for applicants with experience of some (not necessarily all) of the following: Background developing applications in Java (JDK 8, Spring Boot etc.). Solid understanding of Core Java design patterns and concepts. Experience with RESTful Web Services, OOP/OOD More ❯
suppliers to big Banking organisations here in the Netherlands. For one of our top Banking client based in Amsterdam we are looking for a Senior Software Engineer with experience in Banking sector. 36- 40 hours 2 - 3 year project Hybrid (1 day per week onsite) The project: The … offer functionalities to intermediaries to interact in a digital way to create the best fitting Mortgage for the customer. Your role as a Software Engineer is to realise solutions together with product management and developers, interact with other teams and departments and raise the improvements needed to keep the … quick learner to understand them, and you need to have the ambition to improve and automate as much as possible. Skills needed: Experience with Java, Maven and Spring-boot Experience with Relational Databases (Oracle) Experience with Event Streaming (Kafka) Experience with different architecture styles (Micro Services, Event Architecture, ports More ❯
City of London, London, United Kingdom Hybrid / WFH Options
CipherTek Recruitment
Job Title: Java Developer (Electronic Trading Platform - FIC) Contract Type: Outside IR35 Location: London Day Rate: Up to £850 per day Flexible Hybrid working: 1-2 days a week in London City offices Client: Prestigious Investment Bank Industry: Investment Banking Duration: 12 months + 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 and integration of advanced trading technologies in … making capabilities. Integrate with Instrumentation Platforms : Integrate the platform with Prometheus and Geneos for continuous monitoring, diagnostics, and system health checks. Desired technical Skills: Java Expertise: Extensive experience with Core Java , focusing on low-level performance tuning, multithreading , and garbage collection optimization . FIC or similar business knowledge More ❯
Job Title: Java Developer (Electronic Trading Platform - FIC) Contract Type: Outside IR35 Location: London Day Rate: Up to £850 per day Flexible Hybrid working: 1-2 days a week in London City offices Client: Prestigious Investment Bank Industry: Investment Banking Duration: 12 months + 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 and integration of advanced trading technologies in … making capabilities. Integrate with Instrumentation Platforms : Integrate the platform with Prometheus and Geneos for continuous monitoring, diagnostics, and system health checks. Desired technical Skills: Java Expertise: Extensive experience with Core Java , focusing on low-level performance tuning, multithreading , and garbage collection optimization . FIC or similar business knowledge More ❯
Leeds, England, United Kingdom Hybrid / WFH Options
Turnitin
Insights platform empowers educational institutions to analyze vast amounts of exam data, providing critical analytics that drive better learning outcomes. We are seeking a Senior Backend Engineer to develop and maintain the core data processing and reporting systems that power this platform. As a core contributor to our … reporting systems that power our analytics platform. Responsibilities: Design and implement scalable data pipelines for processing and transforming large volumes of exam data using Java, AWS Lambda, SQS, EventBridge and other AWS technologies. Develop and optimize data storage and retrieval systems, ensuring data integrity and accuracy. Implement monitoring and … components, including usage guidelines and examples. Qualifications Essential Qualifications, Skills, and Knowledge/Experience: 8+ years of expertise in backend development, with proficiency in Java and experience with serverless frameworks (e.g., AWS Lambda, Google Cloud Functions). Strong understanding of data modeling and experience with SQL (PostgreSQL) and NoSQL More ❯