Note: We are looking for Java Full Stack Developer with max 7-12 years experience and must be eligible for Security clearance The role requires in-depth understanding of the software development life cycle and strong technical experience with an open-minded attitude and ability to rapidly adapt and learn. Must have skills: Extensive Server Side, hands-on Java 8+ More ❯
Milton Keynes, Buckinghamshire, England, United Kingdom Hybrid / WFH Options
Connexa
Keynes (Hybrid - 2-3 days onsite) Salary: £60,000 - £76,000 + Bonus + Benefits Clearance Required: British Citizens only, SC eligible Our client is seeking an experienced Senior Java Developer to help deliver an award-winning AI innovation toolset supporting public sector data transformation. This role sits at the heart of a full-stack team building secure, scalable applications … engineering, cloud deployment, and delivering secure software at scale - this is a standout opportunity to apply your skills in a meaningful way. Responsibilities: Develop robust back-end services using Java and Spring Boot Build secure APIs and contribute to CI/CD automation and cloud-based deployment Collaborate with front-end developers and cross-functional teams on scalable system design … Implement secure coding practices, data processing, and system testing Optimise application performance and maintain high-quality standards across environments What we're looking for: 6+ years' experience in Java-based development within full stack environments Strong skills in Spring Boot, RESTful APIs, and relational databases (PostgreSQL/MySQL) Experience deploying to Windows/Linux, using Docker and DevOps pipelines Front More ❯
and implementation. Expertise in blockchain platforms such as Ethereum, Hyperledger Fabric, Corda, or Polygon, with hands-on experience in smart contract development. Strong proficiency in programming languages (Solidity, Go, Java, Python, or Rust) for blockchain application development. Proven ability to design decentralized applications (DApps), consensus algorithms, and token economics (utility tokens, NFTs, stablecoins). Experience in blockchain infrastructure setup, including More ❯
Years of Experience: 3- 5+ years Skills: Go, Java, Git, REST Web Services, Jenkins, NoSQL, Postgres/ql Based in London Victoria or Burgess Hill Enthusiastic, diligent Senior Golang Software Engineer to work on the global Loyalty and Benefits platform in American Express. The candidate should have excellent soft skills, strong technical ability with an extensive passion to learn. A More ❯
CI/CD, deployment reliability, and system observability Troubleshoot real-time trade data processing and integration issues Collaborate with QA, support, and business stakeholders Requirements 5+ years of professional Java experience Strong CS fundamentals and problem-solving ability Proficient with SQL and generic scripting Proficient with Linux server environments Background in CI/CD, infrastructure automation, and monitoring Experience working More ❯
into executable engineering tasks. Qualifications & Requirements 7+ years of professional experience in software engineering with strong design principles and system architecture knowledge. Proficiency in programming languages such as Python, Java, Go, or similar. Experience working with Generative AI and ML infrastructure, including: Fine-tuning transformer models Managing embeddings Building RAG pipelines Familiarity with vector databases (e.g., Pinecone, Milvus, Weaviate) and More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Digital Skills ltd
Knowledge of API testing (e.g., Postman, SoapUI) or database testing (SQL). Experience in testing web, mobile, or enterprise applications. Familiarity with performance or security testing concepts. Experience with Java, Selenium, AWS, Jenkins. Benefits: Competitive base salary 25 days holiday + bank holidays Up to 5% employer pension contribution Educational allowance, training programmes, certifications, conference attendance, and other activities to More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Client Server
four days a week with flexibility to work from home once a week. About you: You have experience as a Data Engineer, working on scalable systems You have Python, Java or Scala coding skills You have experience with Kafka for data streaming including Kafka Streams and KTables You have strong SQL skills (e.g. PostgreSQL, MySQL) You have strong AWS knowledge More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Client Server
problem solving skills You're comfortable taking ownership of projects and mentoring more junior team members You have strong TypeScript skills, combined with any backend programming language (e.g. Python, Java, C++, C#) You're happy to work with the following tech stack (you don't need experience with all): Elixir, Ember, Elm, Phoenix, LiveView, Python, PostgreSQL, AWS, Docker You have More ❯
shape the wider engineering culture. Main Skills Needed: Expert knowledge of JavaScript, TypeScript, React (Hooks, Redux), HTML5 and CSS/SASS. Strong experience designing backend services in Kotlin or Java with REST and OpenAPI. Proven experience in system design at scale, simplifying complex architectures. Understanding of CI/CD and DevOps principles (Azure DevOps experience ideal). Strong background in More ❯
shape the wider engineering culture. Main Skills Needed: Expert knowledge of JavaScript, TypeScript, React (Hooks, Redux), HTML5 and CSS/SASS. Strong experience designing backend services in Kotlin or Java with REST and OpenAPI. Proven experience in system design at scale, simplifying complex architectures. Understanding of CI/CD and DevOps principles (Azure DevOps experience ideal). Strong background in More ❯
Forest Hill, Oxfordshire, United Kingdom Hybrid / WFH Options
Sky
LoadRunner/JMeter. Experience in testing large-scale micro services-based web applications preferably media based. Automating tasks using scripting languages like Scala/Python. Coding in languages like Java/Scala/Groovy. Working with databases like MongoDB/MySQL. Good understanding of Build tools like Gradle, Docker etc. Working knowledge of using Monitoring tools like Prometheus, Grafana, Elasticsearch More ❯
has helped many clients achieve their goals. The 3 G’s of RE: “Get Shit Done.” “Get Over Shit.” “Give a Shit.” We are seeking an experienced and opinionated Java Developer to join our high-performing engineering team, working on l ow latency , high-throughput systems in the payments processing domain. This hybrid role is based in the UK or … US and offers the opportunity to build scalable, real-time services using modern technologies. If you’re passionate about performance, have strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you. Key Responsibilities : Design, develop, and optimize low-latency, high-throughput backend systems using Core Java and SpringBoot. Build … discussions, advocate for best practices, and provide mentorship to peers. Drive performance tuning, fault tolerance, and observability improvements across services. Required Skills & Experience: 5+ years of experience in Core Java development with a focus on performance and memory optimization. Proficient in SpringBoot and microservice-based architecture. Proven experience with low-latency, high-throughput applications (sub-millisecond response times a plus More ❯
of sql for data querying and validation. 4. Knowledge of big data technologies such as hadoop, spark, or kafka is a plus. 5. Familiarity with scripting languages like python, java, or shell scripting. 6. Excellent analytical and problem-solving skills with a keen attention to detail. 7. Ability to work collaboratively in a team environment and good communication skills. Certifications More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Hunter Bond
a culture that rewards initiative What You’ll Bring 🎓 Degree in Mathematics, Computer Science, Physics, Engineering, or related STEM field 💻 Proficiency in at least one programming language (Python, C++, Java, C#, KDB+/Q, etc.) 🔍 Strong analytical mindset and passion for solving complex challenges ⚡ High motivation, curiosity, and eagerness to thrive in a fast-paced setting Why Join? 🌍 Work on More ❯
products. Requirements 8+ years’ experience in data engineering within financial markets. Exposure to at least one of: Front Office (Sales & Trading), Risk Management, or Finance. Strong programming in Python, Java and SQL (Rust a plus). Proven experience building streaming and batch ETL/ELT pipelines at scale. Strong understanding of market/trade data lifecycles and time series concepts. More ❯
slough, south east england, united kingdom Hybrid / WFH Options
SGI
Essential: Strong expertise in machine learning, statistical modelling, and numerical methods with practical applications. Proficiency in Python (NumPy, Pandas, scikit-learn, PyTorch/TensorFlow) and experience with C++ or Java for high-performance model integration. Solid understanding of Fixed Income products, yield curve modelling, and financial mathematics. Experience building production-level ML systems in low-latency or large-scale environments. More ❯
Newport Pagnell, Buckinghamshire, South East, United Kingdom Hybrid / WFH Options
Data Careers
be able to demonstrate: 5+ years systems testing experience across manual testing and automated testing, preparing test assets and test scripts from outline plans. Experience with automation testing using Java/JavaScript, Node.js with Selenium Experience of testing interactive data driven websites Good SQL skills, able to create tables Experience using Webdriver.IO for Automation or similar. Experience with Cucumber BDD More ❯
experience with AWS and GCP Proficiency in Terraform, Ansible, Jenkins, or GitLab CI Knowledge of Kafka, Cassandra, and relational or NoSQL databases Scripting skills in Python, Bash, Go, or Java Familiarity with monitoring tools like Prometheus, Nagios, or Icinga Understanding of networking fundamentals and virtualisation (e.g. VMware) Comfortable with on-call rotations and troubleshooting in live environments 💰 Up to More ❯
line) Person Specification The following skills and experience are required for this role: Technically minded. Comfortable both as architect and hands-on developer. Strong and experienced C++ developer. Capable Java developer with coding experience in the workplace. Strong hands-on experience with multi-threading, and real-time systems. Using SQL, preferably MS SQL Server. Experience with Git-based source control More ❯
or similar financial software platforms. Strong understanding of software testing methodologies (black box, white box, grey box). Experience using automated testing tools (e.g., Selenium, Appium). Proficiency in Java, Python, or C# for test automation scripting. Excellent analytical, problem-solving, and communication skills. Ability to perform under pressure, managing multiple priorities and tight deadlines . If you are interested More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Client Server
university (i.e. Russel Group or top 100 global university), backed by A grades at A-level You have advanced C# .Net programming skills including .Net Core (will also consider Java, Python or C++ background if happy to use C# going forward) You have a strong knowledge of SQL databases You have a thorough understanding of Computer Science fundamentals such as More ❯
Key Tech Stack; Java; We Applications stack; JavaScript, Python, Perl, Unix Shell, or Windows Shell; Linux/Unix; MySQL, Oracle; Workflow Automation. We seek to join our Dexian embedded team supporting our client, a market leader in the arena of cloud platform workforce automation applications, a Jnr Technical Support Engineer – Platform Technologies. This is a full-time employee role that More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Talent
Lead Java Developer 6 Months Hybrid working 1 day a week on site £500-£550 per a day inside IR35 Talent Consulting is seeking an experienced Lead Java Developer to join one of our government clients on a large-scale digital transformation programme. You’ll lead a team delivering modern, cloud-native solutions—rebuilding internal systems, creating efficient digital processes … and ensuring scalable, high-quality software delivery. As Lead Java Developer you will be responsible for: Design and develop modern, cloud-based services using Java and Node.js. Build and maintain microservices and UI components, ensuring seamless integration between front-end interfaces and back-end APIs. Implement event-driven solutions using Kafka and other messaging technologies. Develop, deploy, and manage scalable … UI experiences. As a Lead Developer you will have the following experience: Proven experience leading and mentoring development teams. Extensive hands-on experience developing modern cloud-native applications using Java and Node.js. Strong background in microservices architecture, including both front-end (UI) and API components. Proficiency in Kafka and event-driven design patterns. Deep understanding of AWS cloud services and More ❯