1,201 to 1,225 of 1,685 Java Jobs in the UK

on, resilient, and ready to build from the ground up. 🧬 Culture Snapshot 🏢 Hybrid working (Tues & Thurs in-office, flexibility expected). 👕 No dress code – substance over style. 🧑 💻 Tech-first, Java-based stack, bespoke systems. 💼 Flat structure, direct access to leadership. 💰 Debt-free, cash-rich, consistently profitable. 🚀 Opportunity to shape a new function and drive real impact. More ❯

on, resilient, and ready to build from the ground up. 🧬 Culture Snapshot 🏢 Hybrid working (Tues & Thurs in-office, flexibility expected). 👕 No dress code – substance over style. 🧑 💻 Tech-first, Java-based stack, bespoke systems. 💼 Flat structure, direct access to leadership. 💰 Debt-free, cash-rich, consistently profitable. 🚀 Opportunity to shape a new function and drive real impact. More ❯

and deliver blockchain solutions. Optimise the performance and scalability of blockchain nodes and networks. Maintain and troubleshoot deployed applications and smart contracts. Required Skills/Experience: Strong proficiency in Java and Solidity. Hands-on experience with Hyperledger Besu or other EVM-based platforms. In-depth knowledge of blockchain architecture and decentralised systems. Experience in smart contract development, testing, and deployment. More ❯

networking and really infiltrating your market. In order to be the best in the industry, each member of the team will specialise in their specific vertical, recruiting either C#, Java, PHP, Python, HTML or CSS specialists into both permanent and contract roles. Your aim will be to become the 'go-to' person in your niche, attracting top candidates for exceptional More ❯

forensic tools (e.g. Oxygen Detective, FTK Imager, MSAB XRY, Cellebrite UFED, Magnet AXIOM) Delivering training Creating and editing professional PowerPoint and Word documents Programming experience (preferably in Python or Java) Reverse engineering As a person, you’ll be comfortable in the classroom spotlight and good at building rapport with others. You’ll be working within a small team of people More ❯

forensic tools (e.g. Oxygen Detective, FTK Imager, MSAB XRY, Cellebrite UFED, Magnet AXIOM) Delivering training Creating and editing professional PowerPoint and Word documents Programming experience (preferably in Python or Java) Reverse engineering As a person, you'll be comfortable in the classroom spotlight and good at building rapport with others. You'll be working within a small team of people More ❯

forensic tools (e.g. Oxygen Detective, FTK Imager, MSAB XRY, Cellebrite UFED, Magnet AXIOM) Delivering training Creating and editing professional PowerPoint and Word documents Programming experience (preferably in Python or Java) Reverse engineering As a person, you'll be comfortable in the classroom spotlight and good at building rapport with others. You'll be working within a small team of people More ❯

forensic tools (e.g. Oxygen Detective, FTK Imager, MSAB XRY, Cellebrite UFED, Magnet AXIOM) Delivering training Creating and editing professional PowerPoint and Word documents Programming experience (preferably in Python or Java) Reverse engineering As a person, you'll be comfortable in the classroom spotlight and good at building rapport with others. You'll be working within a small team of people More ❯

facing engagements (calls/visits). Excellent consulting, project management, and data-driven decision-making skills. Solid knowledge of security tech (firewalls, IDS/IPS, SDN, compliance) and APIs (Java, REST). Familiarity with infrastructure, cloud (public/private/hybrid), and networking (LAN/WAN). Resilient and adaptable in dynamic, fast-paced environments. Willingness to travel up to More ❯

will be part of the whole feature development lifecycle on multiple full-stack applications with direct access to a wealth of customer feedback. You will use technologies such as Java, Kotlin, C# to write maintainable, performant, and high-quality code. We focus on continuous deployment and iterative delivery, well-tested to ensure our code runs reliably, allowing you to focus More ❯

What we're looking for Mercator is seeking a dynamic, forward-thinking Java Developer with excellent communication skills who can help Mercator in its continued transformation. You will be open-minded, happy to work on your own or as part of a team and want to learn new technologies and promote best practice. Mercator Java Developers work collaboratively in multi … will work closely with other members of the scrum team throughout the development cycle in order to design, build, test, maintain and support the new digital services. As a Java Developer you will have: Excellent Java development skills and a strong track record of designing, developing, delivering, testing and optimising Java applications for public use Experience of developing applications and … within public cloud services Experience of working with an iterative, Agile approach to service delivery and being able to apply the Agile philosophy to your day-to-day work Java 21 experience Experience delivering fully unit/integration tested code as part of a continuous build and delivery pipeline Ability to produce clear technical documentation and ensure appropriate and timely More ❯

Java Developer - Low Latency Systems (FinTech) £90000 - £130000 per annum Benefits and Bonus, Hybrid Contact email: Job ref: LL/HH/88 Startdate: ASAP Java Developer - Low Latency Systems (FinTech) Location: London (Hybrid) Are you an experienced Java Developer with a passion for working on cutting-edge, low-latency systems? Join a dynamic and innovative fintech, delivering high-performance … solutions in the world of financial markets. We're looking for a talented Mid/Senior Java Developer to contribute to our mission of building the fastest, most reliable systems in the industry. What You'll Do: Design, develop, and maintain high-performance, low-latency Java applications for mission-critical trading systems. Work on optimising throughput and minimizing latency to … bottlenecks and implement solutions that enhance system reliability. Participate in full SDLC, from technical design through to testing, deployment, and monitoring. What You'll Bring: 5+ years of professional Java development experience, with a focus on performance and low-latency applications. Strong knowledge of multithreading, concurrency, and memory management in Java. Experience with low-level performance tuning and optimization in More ❯

Java Software Engineer with around 3-5 years professional, post-graduate experience sought by one of the original Quantitative Hedge Funds, with a 20+ year track-record. The firm are renowned for a healthy, supportive, and collegiate working environment and culture, with no siloes, boasting an industry-leading staff tenure. This hire will be part of a core Software Engineering … Finance, Straight-Through-Processing and Corporate Functions. The team deal directly with business users right across the firm, taking ownership of analysis, design, architecture, and implementation, working primarily with Java, but also with Python, SQL and MATLAB. They currently have an opening for a mid-level hire in the team, with around 3-5 years’ experience.The successful applicant should have … exposure to modern software engineering techniques such as CI/CD as well as excellent Computer Science Fundamentals, OOP, Concurrency, and Java Generics. Excellent communication skills are also extremely important for the team, and a strong academic background in a numerate discipline, especially Computing/Computer Science, preferably from a leading University. This hire has been budgeted at a salary More ❯

Java Software Engineer with around 3-5 years professional, post-graduate experience sought by one of the original Quantitative Hedge Funds, with a 20+ year track-record. The firm are renowned for a healthy, supportive, and collegiate working environment and culture, with no siloes, boasting an industry-leading staff tenure. This hire will be part of a core Software Engineering … Finance, Straight-Through-Processing and Corporate Functions. The team deal directly with business users right across the firm, taking ownership of analysis, design, architecture, and implementation, working primarily with Java, but also with Python, SQL and MATLAB. They currently have an opening for a mid-level hire in the team, with around 3-5 years’ experience.The successful applicant should have … exposure to modern software engineering techniques such as CI/CD as well as excellent Computer Science Fundamentals, OOP, Concurrency, and Java Generics. Excellent communication skills are also extremely important for the team, and a strong academic background in a numerate discipline, especially Computing/Computer Science, preferably from a leading University. This hire has been budgeted at a salary More ❯

Java Software Engineer with around 3-5 years professional, post-graduate experience sought by one of the original Quantitative Hedge Funds, with a 20+ year track-record. The firm are renowned for a healthy, supportive, and collegiate working environment and culture, with no siloes, boasting an industry-leading staff tenure. This hire will be part of a core Software Engineering … Finance, Straight-Through-Processing and Corporate Functions. The team deal directly with business users right across the firm, taking ownership of analysis, design, architecture, and implementation, working primarily with Java, but also with Python, SQL and MATLAB. They currently have an opening for a mid-level hire in the team, with around 3-5 years’ experience.The successful applicant should have … exposure to modern software engineering techniques such as CI/CD as well as excellent Computer Science Fundamentals, OOP, Concurrency, and Java Generics. Excellent communication skills are also extremely important for the team, and a strong academic background in a numerate discipline, especially Computing/Computer Science, preferably from a leading University. This hire has been budgeted at a salary More ❯

Java Software Engineer with around 3-5 years professional, post-graduate experience sought by one of the original Quantitative Hedge Funds, with a 20+ year track-record. The firm are renowned for a healthy, supportive, and collegiate working environment and culture, with no siloes, boasting an industry-leading staff tenure. This hire will be part of a core Software Engineering … Finance, Straight-Through-Processing and Corporate Functions. The team deal directly with business users right across the firm, taking ownership of analysis, design, architecture, and implementation, working primarily with Java, but also with Python, SQL and MATLAB. They currently have an opening for a mid-level hire in the team, with around 3-5 years’ experience.The successful applicant should have … exposure to modern software engineering techniques such as CI/CD as well as excellent Computer Science Fundamentals, OOP, Concurrency, and Java Generics. Excellent communication skills are also extremely important for the team, and a strong academic background in a numerate discipline, especially Computing/Computer Science, preferably from a leading University. This hire has been budgeted at a salary More ❯

Java Software Engineer with around 3-5 years professional, post-graduate experience sought by one of the original Quantitative Hedge Funds, with a 20+ year track-record. The firm are renowned for a healthy, supportive, and collegiate working environment and culture, with no siloes, boasting an industry-leading staff tenure. This hire will be part of a core Software Engineering … Finance, Straight-Through-Processing and Corporate Functions. The team deal directly with business users right across the firm, taking ownership of analysis, design, architecture, and implementation, working primarily with Java, but also with Python, SQL and MATLAB. They currently have an opening for a mid-level hire in the team, with around 3-5 years’ experience.The successful applicant should have … exposure to modern software engineering techniques such as CI/CD as well as excellent Computer Science Fundamentals, OOP, Concurrency, and Java Generics. Excellent communication skills are also extremely important for the team, and a strong academic background in a numerate discipline, especially Computing/Computer Science, preferably from a leading University. This hire has been budgeted at a salary More ❯

Senior Java Low Latency Algo SME - Java, Low Latency, e Trading, Rates, FX, Lmax, Aeron The headcount is being raised by the Global Lead within the E Trading Quant Team- covering eFX and eRates, focused around building algorithmic trading strategies and critical platform infrastructure for electronic trading in Rates and FX businesses. The Hiring manager is after a Java Low … Latency SME. Requires a very Tech focussed Java Low Latency/Algo Developer. The first stage is just a phone discussion with you and the Senior Lead who is very techie with very strong product knowledge. They want the best. They will build the role around the person (ie dependent on the skills/experience the candidates has). By More ❯

Full Stack Developer - Active SC, Java, Spingboot, React Up to £550 per day (Inside IR35) London/Remote 3 months initially My client is an instantly recognisable Consultancy who urgently requires a Lead Full Stack Developer to join a business-critical programme. Key Requirements: Proven experience working as a Full Stack Developer, with Active Security Clearance (SC) Expertise in a … range of technologies, including Java (8, 11, 17+), Spring/Springboot, React/HTML AWS Cloud Service experience Working experience with MySQL Nice to have: Technical hands on experience with Terraform/Kibana/Apache Camel Linux in a containerised environment Immediate availability If interested, with relevant experience, please apply with your latest CV ASAP. Hays Specialist Recruitment Limited acts More ❯

Full Stack Developer - Active SC, Java, Spingboot, React Up to £550 per day (Inside IR35) London/Remote 3 months initially My client is an instantly recognisable Consultancy who urgently requires a Lead Full Stack Developer to join a business-critical programme. Key Requirements: Proven experience working as a Full Stack Developer, with Active Security Clearance (SC) Expertise in a … range of technologies, including Java (8, 11, 17+), Spring/Springboot, React/HTML AWS Cloud Service experience Working experience with MySQL Nice to have: Technical hands on experience with Terraform/Kibana/Apache Camel Linux in a containerised environment Immediate availability If interested, with relevant experience, please apply with your latest CV ASAP. Hays Specialist Recruitment Limited acts More ❯

Our client, a mission-led consultancy , is looking for an experienced Principal Software Engineer (Python or Java) to join their growing team. They deliver secure, modern software solutions to the UK Government and Defence sectors, enabling clients to build scalable systems and progressive web applications that drive real impact. This is a senior-level opportunity for a hands-on engineer … and is passionate about shaping engineering best practice while still contributing to the codebase. Key Responsibilities Lead the design, development, and testing of secure, scalable systems using Python or Java with modern front-end frameworks (e.g., React) Architect and maintain APIs, data pipelines, and cloud-native solutions (AWS, Azure, private cloud) Drive adoption of DevOps practices CI/CD, containers … shape technical direction and ensure robust, user-focused solutions Contribute across the full software development lifecycle , from discovery to production support Essential Skills & Experience Deep expertise in Python or Java , with strong full-stack engineering skills Proven experience leading teams or projects at a senior/principal level Strong knowledge of system architecture , cloud solutions, and API design Familiarity with More ❯

Our client, a mission-led consultancy , is looking for an experienced Principal Software Engineer (Python or Java) to join their growing team. They deliver secure, modern software solutions to the UK Government and Defence sectors, enabling clients to build scalable systems and progressive web applications that drive real impact. This is a senior-level opportunity for a hands-on engineer … and is passionate about shaping engineering best practice while still contributing to the codebase. Key Responsibilities Lead the design, development, and testing of secure, scalable systems using Python or Java with modern front-end frameworks (e.g., React) Architect and maintain APIs, data pipelines, and cloud-native solutions (AWS, Azure, private cloud) Drive adoption of DevOps practices CI/CD, containers … shape technical direction and ensure robust, user-focused solutions Contribute across the full software development lifecycle , from discovery to production support Essential Skills & Experience Deep expertise in Python or Java , with strong full-stack engineering skills Proven experience leading teams or projects at a senior/principal level Strong knowledge of system architecture , cloud solutions, and API design Familiarity with More ❯

Our client, a mission-led consultancy , is looking for an experienced Principal Software Engineer (Python or Java) to join their growing team. Make sure to apply with all the requested information, as laid out in the job overview below. They deliver secure, modern software solutions to the UK Government and Defence sectors, enabling clients to build scalable systems and progressive … and is passionate about shaping engineering best practice while still contributing to the codebase. Key Responsibilities Lead the design, development, and testing of secure, scalable systems using Python or Java with modern front-end frameworks (e.g., React) Architect and maintain APIs, data pipelines, and cloud-native solutions (AWS, Azure, private cloud) Drive adoption of DevOps practices CI/CD, containers … shape technical direction and ensure robust, user-focused solutions Contribute across the full software development lifecycle , from discovery to production support Essential Skills & Experience Deep expertise in Python or Java , with strong full-stack engineering skills Proven experience leading teams or projects at a senior/principal level Strong knowledge of system architecture , cloud solutions, and API design Familiarity with More ❯

Our client, a mission-led consultancy , is looking for an experienced Principal Software Engineer (Python or Java) to join their growing team. Make sure to apply with all the requested information, as laid out in the job overview below. They deliver secure, modern software solutions to the UK Government and Defence sectors, enabling clients to build scalable systems and progressive … and is passionate about shaping engineering best practice while still contributing to the codebase. Key Responsibilities Lead the design, development, and testing of secure, scalable systems using Python or Java with modern front-end frameworks (e.g., React) Architect and maintain APIs, data pipelines, and cloud-native solutions (AWS, Azure, private cloud) Drive adoption of DevOps practices CI/CD, containers … shape technical direction and ensure robust, user-focused solutions Contribute across the full software development lifecycle , from discovery to production support Essential Skills & Experience Deep expertise in Python or Java , with strong full-stack engineering skills Proven experience leading teams or projects at a senior/principal level Strong knowledge of system architecture , cloud solutions, and API design Familiarity with More ❯

Lead Java Architect – Greenfield Digital Asset Platform (12 Month Extendable Contract Inside IR35 - mostly remote - City of London) Are you a hands-on Architect with a "builder" mindset, ready to lead the development of a ground-breaking FinTech platform from the ground up? We are seeking an exceptional Lead Java Architect to spearhead a speculative, greenfield project aimed at revolutionising … What you'll bring to the table: Proven "Builder" Experience: A demonstrable history of architecting and building complex, greenfield systems from concept to a fully deployed product. Expert-Level Java Architecture: Deep expertise within the JVM ecosystem, with extensive experience using modern frameworks like Spring Boot to build robust microservices and a strong grasp of enterprise patterns (e.g., event-driven More ❯