1,151 to 1,175 of 3,051 kotlin,java Jobs in the UK

Senior Backend Engineer (Equity only) As a Senior/Lead Backend Engineer, your responsibility will be to manage the server-side code and APIs of our mobile applications. You'll be involved in the entire product development lifecycle, from design More ❯

Role – Lead Data Engineer Location – Hybrid, 2 days onsite in Telford Salary - £100,000 to £120,000 Start - ASAP The Opportunity We're proud to be partnering with one of the UK's leading defence systems integrators on a key More ❯

Senior Full-Stack Developer Remote 500- 570pd (Outside IR35) 3-6 months Job Description: We are seeking a skilled Full Stack Developer with hands-on experience in platforms such as SAP or Salesforce, and a robust understanding of software development More ❯

Senior Full-Stack Developer Remote £500-£570pd (Outside IR35) 3-6 months Job Description: We are seeking a skilled Full Stack Developer with hands-on experience in platforms such as SAP or Salesforce, and a robust understanding of software development More ❯

Java Software Engineer - Manchester We are seeking a Java Software Engineer to join their dynamic team, shaping a cutting-edge product suite and developing scalable, secure, and ethical digital solutions that make a tangible difference. Role Overview: Develop back-end and front-end web and mobile solutions Work on innovative greenfield projects Design scalable, maintainable systems Ensure security … accessibility, and usability Collaborate with a mission-driven team Key Skills & Experience: Essential: 3+ years’ software engineering experience Strong Java, React, and React Native skills Agile development experience CI/CD pipelines and DevOps expertise Relational databases (e.g. MySQL) knowledge Strong problem-solving and teamwork abilities Desirable: AWS experience Agile tools (JIRA, Confluence) familiarity Working with sensitive health data … Benefits: Hybrid working flexibility 25 days’ holiday + UK bank holidays + your birthday off 5 mental health days per year Well-being budget Interested? Please Click Apply Now! Java Software Engineer More ❯

Java Software Engineer - Manchester We are seeking a Java Software Engineer to join their dynamic team, shaping a cutting-edge product suite and developing scalable, secure, and ethical digital solutions that make a tangible difference. Role Overview: Develop back-end and front-end web and mobile solutions Work on innovative greenfield projects Design scalable, maintainable systems Ensure security … accessibility, and usability Collaborate with a mission-driven team Key Skills & Experience:Essential: 3+ years software engineering experience Strong Java, React, and React Native skills Agile development experience CI/CD pipelines and DevOps expertise Relational databases (e.g. MySQL) knowledge Strong problem-solving and teamwork abilities Desirable: AWS experience Agile tools (JIRA, Confluence) familiarity Working with sensitive health data … Benefits: Hybrid working flexibility 25 days holiday + UK bank holidays + your birthday off 5 mental health days per year Well-being budget Interested? Please Click Apply Now!Java Software Engineer More ❯

Java Developer – 6 Month Contract – Hybrid – £500-650 Per Day Outside IR35 Working with a leading consultancy who are looking for a Java developer for a migration project where they will be moving their tenants to a new platform. You will be required to be on-site in London 1-2 days a week *Strong Kubernetes is a … must* Techstack: Java AWS/GCP CI/CD Kubernetes, EKS, GKE Microservices Springboot If this is your stack and you’re available, apply with your CV and we can discuss More ❯

Java Developer – 6 Month Contract – Hybrid – £500-650 Per Day Outside IR35 Working with a leading consultancy who are looking for a Java developer for a migration project where they will be moving their tenants to a new platform. You will be required to be on-site in London 1-2 days a week *Strong Kubernetes is a … must* Techstack: Java AWS/GCP CI/CD Kubernetes, EKS, GKE Microservices Springboot If this is your stack and you’re available, apply with your CV and we can discuss More ❯

Technologies: Java UML UX UI Requirements Analysis Agile Waterfall NetBeans Eclipse Java Swing Java FX VMware Redhat Linux ansible Software Test Planning Configuration & Build svn Jenkins Hudson Sonar Signal Processing C++ RTI DDS Java Software Engineer wanted! Our client based in Weymouth is seeking a talented Java Software Engineer. A background in UX/UI … and talented person with a keen interest in software technology and the User journey through UX/UI is the ideal candidate. Extremely competitive salary on offer. Responsibilities: The Java Software Engineer should have UML experience using Enterprise Architect. Our client operates in areas where they support systems and equipment, both in the UK and International. This job will … be in the area of underwater warfare. Java UML UX/UI Requirement Analysis Knowledge of Agile, Waterfall and V VMware, RedHat, Linux, Ansible Software Test Planning Configuration and Build SVN, Jenkins, Hudson Sonar or Signal Processing C++ RTI DDS Candidate Profile: Degree in Computer Science or related subject Previous experience working as a Java Software Engineer Must More ❯

Java Developers ( ACTIVE BPSS CLEARANCE IS ESSENTIAL) - Inside IR35 - Mostly Remote (UK) A large organisation is urgently seeking 2 experienced Java Developers (ideally 1 Senior, 1 Mid-Junior Level) to support a long-term digital transformation project. You'll collaborate closely with Enterprise Architects, contribute to solution design, and build high-quality Java applications in a modern … cloud environment. Key skills required include: * Active BPSS is MUST (SC Clearance desirable)* 7+ years (Senior) 2-3 of Java development experience (Java 8+)* Strong experience with cloud platforms - AWS or Azure* Confident in TDD/BDD and building robust automated test suites* Skilled in SQL and noSQL (Postgres, MySQL, MongoDB)* Strong understanding of REST APIs and Microservice … architectures* Expert knowledge of modern Java frameworks and design principles* Experience presenting solutions to Architecture Review Boards (Senior role) Mostly remote with occasional on-site workshops in North West (travel fully covered) Start date: end of June/9-month contract Inside IR35 This is a great opportunity to join a high-profile project. For more information, please apply More ❯

Java Developer Leatherhead - 3 days per week UK based FinTech company in Leatherhead are recruiting for a Java Developer to join their team. This role will help develop, test and maintain existing products and help modernise legacy systems into a newer microservices architecture. You'll work alongside experienced developers and internal stakeholders to deliver high-quality software that … meets business objectives. Key responsibilities will include: Develop and maintain Java-based applications, APIs, and backend services. Collaborate with cross-functional teams to analyse requirements and deliver features. Participate in code reviews and contribute to continuous code quality improvement. Debug, troubleshoot, and resolve software defects and production issues. Write clean, maintainable, and well-documented code. Optimise application performance and … scalability. Stay up-to-date with emerging Java technologies and best practices. The successful candidate will have a minimum of 5 years' hands on experience in Java 8+ development. You will have experience with Spring, RESTful API, Maven or Gradle, Git, SQL, MySQL, PostgreSQL and any experience with cloud platforms would be beneficial. More ❯

Java Developer Leatherhead - 3 days per week UK based FinTech company in Leatherhead are recruiting for a Java Developer to join their team. This role will help develop, test and maintain existing products and help modernise legacy systems into a newer microservices architecture. You'll work alongside experienced developers and internal stakeholders to deliver high-quality software that … meets business objectives. Key responsibilities will include: Develop and maintain Java-based applications, APIs, and backend services. Collaborate with cross-functional teams to analyse requirements and deliver features. Participate in code reviews and contribute to continuous code quality improvement. Debug, troubleshoot, and resolve software defects and production issues. Write clean, maintainable, and well-documented code. Optimise application performance and … scalability. Stay up-to-date with emerging Java technologies and best practices. The successful candidate will have a minimum of 5 years' hands on experience in Java 8+ development. You will have experience with Spring, RESTful API, Maven or Gradle, Git, SQL, MySQL, PostgreSQL and any experience with cloud platforms would be beneficial. More ❯

Senior Java Engineer/Tech Lead - Banking & FinTech 90K + Benefits Are you a Java expert ready to design and lead high-performance systems in a fast-paced, high-impact environment? We’re looking for a Senior Java Engineer/Technical Lead with 12–15 years of hands-on experience to join a growing team driving innovation … on complex systems at scale, contribute to architecture decisions, and play a key role in mission-critical software development. 🔧 What We’re Looking For: 12–15 years of deep Java development experience Strong skills in Java, Spring, Hibernate, and related frameworks Experience designing and building high-performance, scalable applications Solid understanding of OOP, design patterns, and clean architecture … of Treasury, Risk systems, and regulatory frameworks Understanding of compliance and financial data handling 🎓 Qualifications: Bachelor's or Master’s in Computer Science, Engineering, or related field Certifications in Java or architecture frameworks are a plus If you're ready to make an impact in the Financial Services domain, working on challenging problems, in a collaborative, high-performing team More ❯

Senior Java Engineer/Tech Lead - Banking & FinTech 90K + Benefits Are you a Java expert ready to design and lead high-performance systems in a fast-paced, high-impact environment? We’re looking for a Senior Java Engineer/Technical Lead with 12–15 years of hands-on experience to join a growing team driving innovation … on complex systems at scale, contribute to architecture decisions, and play a key role in mission-critical software development. 🔧 What We’re Looking For: 12–15 years of deep Java development experience Strong skills in Java, Spring, Hibernate, and related frameworks Experience designing and building high-performance, scalable applications Solid understanding of OOP, design patterns, and clean architecture … of Treasury, Risk systems, and regulatory frameworks Understanding of compliance and financial data handling 🎓 Qualifications: Bachelor's or Master’s in Computer Science, Engineering, or related field Certifications in Java or architecture frameworks are a plus If you're ready to make an impact in the Financial Services domain, working on challenging problems, in a collaborative, high-performing team More ❯

Principal/Senior Java Developer – Full Stack | Leeds (Hybrid) | £70,000 We're working with one of Yorkshire’s most exciting and innovative tech companies – a fast-growing SaaS business that's making waves globally with its cutting-edge BI and AI platform. As their exclusive recruitment partner, we’re now looking for a Full Stack Java Developer … Location: Hybrid – 2-3 days/week in Leeds City Centre Perks: Friendly, down-to-earth team | Flexible working | Impactful work with AI Tech You’ll Be Working With: Java (Spring Boot, Grails/Groovy) and JavaScript (Angular or equivalent) Directly on AWS cloud AI/ML-driven features and, microservices architecture What You’ll Need: Strong experience with … Java and Spring Boot or Grails Frontend experience with Angular or equivalent Tomcat deployment Experienced in observability Expereince working in an Agile environment This is an ideal role for a developer who enjoys both backend and frontend work, thrives in a collaborative culture, and is excited about AI innovation. More ❯

Java Developer Join our dynamic team at mthree working with a major investment bank, where we are committed to delivering innovative risk management solutions. We are seeking a talented Java Developer with expertise in multithreading and concurrency to help us build robust, high-performance applications that drive Equity Trading strategies. Key Responsibilities: Design, develop, and maintain Java … organization, and automation. Participate in code reviews and contribute to team knowledge sharing. Requirements: Bachelor’s degree in Computer Science, Engineering, or a related field. Proven experience as a Java Developer (v11+), with an understanding of multithreading and concurrency. Solid knowledge of object-oriented programming and design patterns. Good grasp of relational and NoSQL Database technologies. Experience with risk … to detail. Excellent communication and teamwork abilities. Preferred Qualifications: Experience with Spring Framework and related technologies. Knowledge of financial instruments and risk management concepts. Familiarity with Agile development methodologies. Java Developer More ❯

Java Developer Join our dynamic team at mthree working with a major investment bank, where we are committed to delivering innovative risk management solutions. We are seeking a talented Java Developer with expertise in multithreading and concurrency to help us build robust, high-performance applications that drive Equity Trading strategies. Key Responsibilities: Design, develop, and maintain Java … organization, and automation. Participate in code reviews and contribute to team knowledge sharing. Requirements: Bachelor’s degree in Computer Science, Engineering, or a related field. Proven experience as a Java Developer (v11+), with an understanding of multithreading and concurrency. Solid knowledge of object-oriented programming and design patterns. Good grasp of relational and NoSQL Database technologies. Experience with risk … to detail. Excellent communication and teamwork abilities. Preferred Qualifications: Experience with Spring Framework and related technologies. Knowledge of financial instruments and risk management concepts. Familiarity with Agile development methodologies. Java Developer More ❯

Have you got experience leading a team while remaining hands-on and technically involved? Lead Java Developer – FX Trading Salary: up to £130k + bonus (25-50%) Location: London office 3 days a week We are delighted to be continuing our longstanding partnership with an FX Market Disruptor FinTech that has been acquired by a leading capital market. They … are looking for an experienced Java Developer who will fulfil a hands-on Lead role leading the next generation of Java Developers. They are looking for the following experience in Lead Java Developers: Core Java development Multithreading, concurrency, low latency Working in the financial sector e.g. FX, trading Building microservices in the cloud (GCP, AWS) with … training & development budget Are you looking for a step up in your career to take on additional responsibilities while remaining technically hands-on? Apply now for this excellent Lead Java Developer opportunity! Please note: Due to compliancy reasons, we will only be able to consider applications based in and eligible to work in the UK. More ❯

Have you got experience leading a team while remaining hands-on and technically involved? Lead Java Developer – FX Trading Salary: up to £130k + bonus (25-50%) Location: London office 3 days a week We are delighted to be continuing our longstanding partnership with an FX Market Disruptor FinTech that has been acquired by a leading capital market. They … are looking for an experienced Java Developer who will fulfil a hands-on Lead role leading the next generation of Java Developers. They are looking for the following experience in Lead Java Developers: Core Java development Multithreading, concurrency, low latency Working in the financial sector e.g. FX, trading Building microservices in the cloud (GCP, AWS) with … training & development budget Are you looking for a step up in your career to take on additional responsibilities while remaining technically hands-on? Apply now for this excellent Lead Java Developer opportunity! Please note: Due to compliancy reasons, we will only be able to consider applications based in and eligible to work in the UK. More ❯

A leading financial services organisation based in Central London is seeking an experienced Java Developer to join their team. This is a hybrid role requiring three days per week onsite at their Central London office. Key Requirements: Essential Skills: 5+ years of commercial Java development experience, ideally at senior/lead level Strong full stack Java development More ❯

Contract Opportunity: Java Software Engineer Location: City of London Contract Type: Temporary & Contract Sector: Software Development Salary: £400.00 - £450.00 Daily Reference No. BBBH375087 Contract Opportunity: Java Software Engineer - Outside IR35 Location: Central London (Hybrid - 2 days onsite)?? Contract: Outside IR35 | Rate: £450/day? Start: Late July/Early August | Duration: 12 months (with extensions) Looking for your … next full-stack contract? Join a high-impact workstream focused on transforming the customer experience journey for a confidential client in a modern, cloud-native environment. Tech Stack Java, Spring Boot Angular, React, TypeScript AWS, REST APIs, Microservices MySQL What You'll Be Doing Building and maintaining scalable backend services using Java & Spring Boot Contributing to frontend development … infrastructure Supporting QA efforts and ensuring high code quality Collaborating in a hybrid team (2 days onsite in Central London) What We're Looking For Strong experience in backend Java development Solid frontend capabilities (Angular, React) Familiarity with AWS and microservices Comfortable with hybrid working and fast-paced delivery Available to start immediately (first week of June) Interview Process More ❯

Job Title: Java Developer/Software Engineer Location: Edinburgh (4 days per week on-site) Experience Level: 3–8 Years Employment Type: Full-Time About the Role We are seeking a highly motivated Java/LLM Developer to join our dynamic team in Edinburgh . The ideal candidate will have 3 to 8 years of professional experience in … software development, with strong Java programming skills and hands-on knowledge of MS SQL Server and Azure DevOps. This role requires on-site presence four days a week. Key Responsibilities Identify and resolve syntax and semantic errors in application code and core libraries Write and maintain universally compatible SQL code Functionally validate code fixes, including reviewing and managing pull … requests (PRs) Support regression, integration, and load testing activities for remediated applications Collaborate with cross-functional teams to ensure high-quality software delivery Required Skills & Experience Proficiency in Java programming (core and advanced) Experiencie with LLMs Solid experience with MS SQL Server Familiarity with Azure DevOps for version control and CI/CD pipelines Strong debugging and troubleshooting skills More ❯

Do you have 3-5 years experience and are looking for your next challenge? Have you been developing with Core Java without the use of frameworks? Mid Java Developer – Leading FinTech Location – hybrid in London 3 days a week Salary – up to £90k + 25-50% bonus We are working with our long-term partners on the hunt … for numerous Mid-level Java Developers as they continue to expand various teams. They began their journey as a market-leading FinTech disruptor and after many years at the forefront of their field, have recently been acquired by a prominent capital market. This is an excellent opportunity for someone looking for their 2nd or 3rd job in software development … as they are looking for someone with 3-5 years prior experience, with the potential to rapidly progress into a senior position. Experience they are looking for in Mid Java Developers: Core Java Developing software from scratch WITHOUT the use of frameworks e.g. Spring Multithreading TDD, CI/CD, Paired-programming environment Data structures, algorithms, threads Working in More ❯

Do you have 3-5 years experience and are looking for your next challenge? Have you been developing with Core Java without the use of frameworks? Mid Java Developer – Leading FinTech Location – hybrid in London 3 days a week Salary – up to £90k + 25-50% bonus We are working with our long-term partners on the hunt … for numerous Mid-level Java Developers as they continue to expand various teams. They began their journey as a market-leading FinTech disruptor and after many years at the forefront of their field, have recently been acquired by a prominent capital market. This is an excellent opportunity for someone looking for their 2nd or 3rd job in software development … as they are looking for someone with 3-5 years prior experience, with the potential to rapidly progress into a senior position. Experience they are looking for in Mid Java Developers: Core Java Developing software from scratch WITHOUT the use of frameworks e.g. Spring Multithreading TDD, CI/CD, Paired-programming environment Data structures, algorithms, threads Working in More ❯

Insight Global is seeking a mid-level Java Developer for one of their premier financial services clients in Birmingham, UK. As a Java Developer on this team, you will play a crucial role in a strategic project involving the evaluation, migration, and potential decommissioning of approximately 60 existing services inherited from a separate division. These services need to … stakeholders to identify application usage, engage in light production support (such as reviewing and investigating logs), and coordinate with both technical and business teams. Must Haves: Proven expertise in Java development. Strong experience with: Reading/writing from Kafka in Java, and Microservices architecture using Spring Framework. Familiarity with log investigation and production support tasks. Ability to read … collaborating with other teams and driving deliverables to completion. Pluses: MongoDB (especially integrating services with MongoDB). Experience with cloud platforms, especially AWS. Experience interacting with AWS services within Java applications. Background or exposure to service demise and platform migration strategies. More ❯