1 to 25 of 60 Part-Time Java Software Engineer Jobs

leadership teams across FTSE companies, private businesses and major government departments in order to transform their organisations. We are currently looking for a Senior Java Software Engineer to work with a broad range of blue-chip companies and public sector organisations. As a Senior Java Engineer … working on projects that employ cutting edge technologies and deliver high profile solutions that make a genuine difference to everyday life. A Successful Senior Java Software Engineer Will Have: Strong object-oriented programming principles in Java. Extensive experience in leveraging Java 8 features. Domain/Sector … RESTful services using JAX-RS. Experience in hosting and orchestration using Docker, Kubernetes and AWS Autoscaling Groups. Experience in a position of leadership. Senior Java Software Engineer Key Details: Up to £75k Salary. 10-20% discretionary bonus. Hybrid Working. Travel allowance. Requires eligibility for SC Clearance. If More ❯

Software Engineer/Developer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Software Engineer with strong Java skills looking to progress your career, working with a modern cloud based infrastructure and a range of technology? You could be joining … a hugely successful and growing commodities trading firm that specialise in trading whiskey. As a Software Engineer you'll collaborate with the Lead Engineer on the whiskey trading platform as the company looks to scale the platform and introduce new features. There's an emphasis on code … quality; designing and developing highly complex web based trading platforms working across the full development lifecycle. The technology stack includes Java 17, Kotlin, Spring Boot and AWS amongst others; you'll be encouraged to expand your skillset using the latest technologies and choosing the best tool for the job More ❯

Java Software Engineer – Asset Management Technology 💸 Up to £100,000 + bonus + benefits 📍 Hybrid – 2 days/week in Central London Join a cutting-edge, cloud-native SaaS company backed by one of the UK’s leading global asset managers as a Java Software Engineer . They’re redefining portfolio management through an open architecture platform that puts control in the hands of the user – whether for multi-asset, single-asset, or transformational investment businesses. As a Java Software Engineer , you’ll be part of a high-performing team … building distributed, low-latency systems designed for speed, scale, and resilience. 🧠 What They’re Looking For: 2+ years’ commercial experience with Java Solid grasp of multithreading, concurrency , and high-throughput system design A passion for TDD, pair programming , and continuous delivery practices Computer Science degree from a Russell Group More ❯

team is comprised of talented individuals who are committed to pushing boundaries and delivering excellence. As they continue to expand, they are seeking a Java Software Engineer to join our dynamic team. Role Overview: As a Java Software Engineer, you will have the opportunity … to work on exciting projects and collaborate with experienced developers. You will play a key role in designing, developing, and maintaining scalable software solutions using Java, Scala, AWS, and the Spring framework. Key Responsibilities: Develop high-quality software applications using Java, Scala, and Spring framework. Collaborate … during testing phases. Stay updated with emerging technologies and industry trends to continuously improve skills and solutions. Requirements: Bachelor's degree in Computer Science, Software Engineering, or a related field. Proficiency in Java programming language and experience with JVM-based frameworks such as Spring. Familiarity with Scala programming More ❯

Java Engineer – Cloud (GCP or AWS) | Scalable Systems | Product Environment Are you a Java engineer who thrives on building scalable, cloud-native systems? Want to make a tangible impact on modern product development in a fast-moving team? My client is looking for a Java Engineer with strong experience in either Google Cloud Platform (GCP) or Amazon Web Services (AWS) to join their high-performing engineering team. You’ll be developing robust, distributed systems and contributing to cloud infrastructure in a product-focused environment. Key Responsibilities: Design, develop, and deploy high-performance backend … testing, and resilience of services. Take ownership of cloud infrastructure components using GCP or AWS services. Essential Skills and Experience: Strong commercial experience with Java (Java 11 or newer) . Hands-on experience with GCP or AWS , including services such as Cloud Run, Pub/Sub, BigQuery, S3 More ❯

Software Engineer - Java OR C++ Gloucestershire/London - 4 days on-site A global leader in aerospace, defense, and advanced technologies is looking for a permanent Software Engineer (Java/C++). This company is at the forefront of developing cutting-edge solutions for … across air, land, sea, and space domains, supporting both government and commercial clients worldwide You will play a key role in developing cutting edge software systems and applications. You may specialise in just one area or operate across multiple Software Development disciplines with a specific focus on the … British national with active SC or DV clearance. Candidates eligible and willing to undergo DV vetting will also be considered. Key requirements : Proficient in Java, and/or C++ Experience in JavaScript/TypeScript & React Experience of developing on Linux. Knowledge of mocking up and unit testing frameworks such More ❯

Role: Java Software Engineer/Java Developer 🌍 Location: Central London - hybrid 2 days a week onsite 💰 Salary: £40,000-£55,000 🛠 Key Skills: Core Java/SE, XML, JSON, Junit, APIs, complex/high-traffic systems A leading global B2B SaaS technology company is seeking … Java Developers at all levels (Junior-Mid) to join its London-based team. The company operates a large-scale SaaS platform that supports hundreds of millions of daily transactions, supplying content to major travel agencies, meta search engines, and ecommerce platforms. You will join a dynamic development team, working … volume XML integrations, time-sensitive bug fixes, and contributing to innovative new features and products. Key Responsibilities: Develop and maintain robust backend systems in Java (Java 17). Work on complex system integrations with third-party suppliers and distributors. Handle XML feeds, web scraping, and high-frequency search More ❯

Senior Software Engineer - Full Stack Engineer- Java, React, Spring Boot An exciting opportunity to join an innovative SaaS provider in the online gaming space. Work with top-tier clients in the UK and USA, contributing to the development of new software solutions within a rapidly … expanding company. Work within their software engineering squads to develop new and modernize legacy applications using microservices. You'll primarily focus on Java backend, with a practical understanding of frontend development. As such you will need: Expertise in core Java development Spring Boot Commercial JavaScript experience Strong More ❯

Job Title: Java Engineer - Trading Location: London Salary Up to £90,000 base + discretionary Bonus Company: Our client is a prestigious trading firm located in the heart of London. With a strong focus on multi-strategy, multi-asset trading, they have consistently excelled in the dynamic and … fast-paced world of financial markets. They are currently seeking two Java Engineers to join their elite team and drive the development of mission-critical software solutions. Position Overview: As an Engineer at our client's firm, you will play a pivotal role in developing and maintaining … the software that powers their high-frequency trading operations. The ideal candidate will have a proven track record of building mission-critical software systems, and preferably come from a financial or trading background. Responsibilities: Designing, development, and maintenance of high-performance, low-latency trading systems. Collaborate closely with More ❯

Java Software Engineer (Must hold active SC) Location: Remote The Company: At Amber Labs, we are a cutting-edge UK and European technology consultancy that prioritises empowering autonomy, promoting experimentation, and facilitating rapid learning to provide exceptional value to our clients. Our company culture is centred around … risk and shorten delivery times. Our team consists of highly-skilled cross-functional consultants, analysts, and support staff. Your role: You will apply a software engineering mindset to problems, whether that’s provisioning services, writing code or writing automation tools and scripts. You will have a lean mindset, striving … and performant services that are operationally sound. You will strive to do things better and faster, eliminating waste and applying this across the entire software delivery lifecycle for both internal customers and end users. What you’ll do: You will be responsible for delivery business outcomes, from requirements into More ❯

Role: Senior Java Software Engineer Salary: £60,000 - £80,000 - DOE Location: Ipswich (Hybrid) Type: Permanent About the job: Are you an experienced Senior Software Developer who loves variety and still loves learning new things, while connecting with new people along the way? This role could … with key stakeholders within the business and estimating development timelines. I have partnered with a fantastic business who are looking to add a Senior Java focused Developer to the team. Senior Software Developer required skills: 5 year’s commercial experience minimum Strong Java background SQL HTML, CSS More ❯

Java Software Engineer Provider of FX Trading Solutions seek Java Engineers to work on low latency, high performance, real time applications. You will have the opportunity to build high-speed, data-intensive applications that scale elastically meet tough performance requirements. You will work within a pod … trading services, order routing, FIX connectivity, real-time price services, database designs, cloud-based micro-services, big data solutions and more. Good general Core Java, algorithms etc is required and the role will be 3 days a week onsite in London. Skills needed: Core Java and happy to More ❯

Position: Lead Software Engineer Location: Manchester (Hybrid – 2 days per week in office) Salary Range: £85,000 – £140,000 Our client is shaping the next chapter of digital banking with one of the biggest and most innovative banking software projects in Europe. We’re looking for innovative … minds to help lead the way. If you're a hands-on Java engineer with a passion for scalable architecture and modern cloud-native development, this is your chance to work on something big. You’ll take a key role in a strategic engineering team that’s focused … by architecting/building performant services and APIs which support innovative financial products. What You’ll Do Lead engineering efforts on backend services in Java, built for cloud deployment and aligned with modern software architecture principles. Design and maintain integration layers and orchestration services that connect Vault with More ❯

Senior Software Engineer II – Cloud-Native & AI Solutions | Global Fintech Innovator We’re partnering with a cutting-edge global fintech company at the forefront of AI-powered decisioning and analytics to find a talented Senior Software Engineer II . This company has recently been recognized with … how financial institutions leverage data, AI, and cloud technologies to accelerate smarter decision-making. This is a high-impact role ideal for an experienced engineer who thrives on innovation and is passionate about cloud-native applications, AI/ML product development, and technical leadership within high-performing teams What … build, and operationalize large-scale AI and ML-driven applications and APIs. Lead the development of scalable, low-latency cloud-native applications, primarily using Java and AWS services. Work collaboratively with architects, cloud engineers, and product leads to shape AI/ML product requirements and roadmaps. Contribute to and More ❯

Senior Software Engineer Java/Spring Boot/Python £400-435.00 per day, Outside IR35 Start ASAP - initially until the end of September (+ Likely extensions) Fully Remote - Must be UK based One of our valued partners requires the services of 2 x highly experienced Senior … Software Engineers to join a project team delivering a large, high profile, Government program. Prior public sector or government sector experience would he highly desirable, and strong communication and customer engagement skills are essential! Technical Skills Required: Python, Flask framework experience or any experience on other MVC front-end … frameworks Javascript and html experience Spring Boot 3 Java 17, 21 OpenShift Cloud environment, experience in any of the cloud platforms Azure, GCP, AWS - nice to have Rest API(s) PostgreSQL or any other database experience Flyway or any other DB migration tool experience Integration testing, API testing experience More ❯

Mid-Level Java Engineer My client is a leading financial services firm dedicated to providing innovative solutions and cutting-edge technology in the finance sector. With a commitment to excellence, they are seeking a talented and experienced Mid-Level Java Engineer to join our dynamic team. … passionate about finance, technology, and thrive in a collaborative environment, we invite you to apply. Responsibilities: Design, develop, and maintain high-performance and scalable Java applications. Collaborate with cross-functional teams to understand project requirements and translate them into technical specifications. Implement best practices for software development, ensuring … contribute to a culture of continuous improvement. Qualifications: Bachelor's degree in Computer Science, Engineering, or related field. 3+ years of professional experience in Java development. Solid understanding of Kotlin and experience in using it for building robust applications. Proficiency in the Spring framework, including Spring Boot. Hands-on More ❯

PE Global is recruiting a Java Software Engineer for our industrial manufacturing client based in Wrexham. The role is an initial 12-month contract and the role is hybrid. The rates for this role is between £26.52 and £35.27 per hour. Responsibilities: Be a hands-on technologist … often exploring the inner workings of the tools and libraries you use to understand how they work Requirements: Demonstrable understanding of best practices in software engineering Good communication skills demonstrating the process and progress to stakeholders, as well as internal team communication Proficiency in at least one general purpose … programming language (Java or JavaScript/Typescript) with willingness to learn new languages and technologies Experience or familiarity with some of the core platform frameworks and libraries: Spring Boot, ReactJS, React Native, Docker Familiarity with Linux environment Enjoy participating in the full lifecycle of the software product: from More ❯

low latency pre-trade credit component we deliver a performant, cost effective solution to your eFX needs. Role Lucera Financial Infrastructures is hiring a Java Software Engineer for our Belfast office to work on our core infrastructure as a service platform, used by some of the top … pick up new technologies Background in taking products from design right through to delivery Strong sense of writing quality maintainable code Commercial experience in Java (8+) Use of Micronaut/Spring (or equivalent) Frameworks Developing against Relational and NoSQL Database (MongoDB, Postgres etc) Experience with unit testing methodologies and More ❯

Senior Java Engineer – Core Java, Algo, Distributed Systems Location: Belfast – 2/3 days per week needs to be possible (only considering candidates in NI) Type: Contract Industry: Investment Banking Duration: ASAP – long term (12 months to start with extensions) We’re seeking Senior/Lead Java … systems that support trading across Equity Swaps, Delta One, and Prime Brokerage. While low-latency expertise is not essential, a deep command of Core Java and algorithmic/data structure proficiency is critical to succeed in this complex and performance-sensitive environment. Key Responsibilities: Design and enhance trading engines … microservices architecture , and contribute to distributed system designs. Lead database migrations from legacy systems (e.g., Sybase , DB2 ) to modern platforms. Required Skills: Strong Core Java expertise, with a focus on performance tuning and optimisation . Solid understanding of algorithms , data structures , and concurrent distributed environments . Proven experience with More ❯

Java Developer You must be eligible for SC Clearance London based - Hybrid Working My Client is the leading innovation and transformation consultancy in the UK and they are currently in search of a highly talented Java Developer to join their offices in London. Successful candidates will be helping … of clients such as law enforcement agencies, telecommunications companies and compliance agencies. What will you be doing Apply strong object-oriented programming principles in Java to design and implement robust and scalable solutions. Leverage Java 8 features, including streams, functional interfaces, and collections, to enhance code readability and … solutions and implement scheduling using Jenkins/Ansible. Use a combination of Cucumber, JUnit, Selenium, and Postman for comprehensive testing. Requirements for the ideal Java Developer Minimum of 3+ years of hands-on experience in Java software development Extensive experience in the specified technologies and tools. Proven More ❯

Contract - 12 months (Inside IR35) - Java Developer (Front Office) Synechron's global consulting firm combines creativity and innovative technology to deliver industry-leading digital solutions. Synechron’s progressive technologies and optimization strategies span end-to-end Artificial Intelligence, Consulting, Digital, Cloud & DevOps, Data, and Software Engineering, servicing an … or LinkedIn community . Are you passionate about bringing systems to life? Do you have the drive to innovate? We are looking for a Java Developer who has worked in Front Office, Capital Markets environment. Required Skills/Experience: 7 + years hands on Java development experience in … a front-office environment Capital markets experience Java – Java 8+, Spring Boot, Microservices, Kafka, DB Strong Java script knowledge in React or Angular is useful Python – flask You'll be required to work in our or our clients office 3 days per week (both City based More ❯

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 front … 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 ❯

Senior Backend Software Engineer Up to £70,000 + 15% Bonus + Stock Options Join a fast-growing tech company that's reimagining how modern marketplaces are built. We're looking for a hands-on Senior Backend Engineer to help evolve a highly scalable platform powered by … world problems. Help shape engineering practices and mentor junior developers. Collaborate with a remote-first, high-performing team across time zones. Tech Stack: Kotlin, Java (or other JVM), Spring Boot, GCP, Kubernetes, Docker, Kafka, PostgreSQL, MongoDB, CI/CD pipelines. Experience in Go, Python, or C# also welcomed. What More ❯

Lead Java Developer with AWS A unique development opportunity to work on a Public Sector Based Large Scale program with an innovative market leader as Lead Java Developer. Requires a Lead Java developer with strong Java experience to create and implement solutions for our portfolio of … as well as supporting live systems and diagnosing incidents. You will join a team that prides itself on collaboration and engineering the best possible Java code. Essential: Java 17+, Spring Boot, Spring DataJPA, Spring Integration, Spring Batch, Microservices, Quartz, SQL Database (PostgreSQL), JPA (Hibernate), REST and SOAP Web … Jaspersoft, Spring extension projects (Data, Cloud, Batch, Security), Angular. • Public sector experience • 8-10 years of hands-on experience with large scale Spring based java projects. • Must have experience of supporting live systems and diagnosing incidents. • Experience in large scale integration projects involving microservices, messaging, web-services and distributed More ❯

Java Developer- Glasgow My Consultancy client is looking for several Java Developers to join them Up to £60k, benefits such as Bonus, 25 days Holiday, Paid for Certifications, Healthcare, Flexible hours and much more Hybrid working 2 says per week onsite in Glasgow Java, Spring, Spring Boot … techniques such as TDD, CI and Paired Programming. THE BENEFITS Bonus 25 days Holiday Paid for Certifications Healthcare Flexible hours Annual trips abroad THE JAVA DEVELOPER ROLE: You’ll be joining a Financial Service client in Glasgow, 2 days per week onsite. In this role, a developer will be … between external groups and the project team, while also tracking project progress, offering timely feedback, and fostering a culture of agility and continuous learning. JAVA DEVELOPER ESSENTIAL SKILLS: Java 8+ Spring/Spring Boot SQL REST CI/CD Leadership qualities Critical thinking skills TO BE CONSIDERED: Please More ❯