Java Jobs in London

851 to 875 of 1,427 Java Jobs in London

Offensive Security Tester Red Team

London, England, United Kingdom
Hybrid / WFH Options
Client Server
Penetration testing You have a keen interest in Cyber Security and understanding of key concepts and protocols You can code with any OO programming language (e.g. Python, C++, C#, Java) You have experience of using different operating systems and networking technologies You have a good understanding (and interest in) low level concepts including operating systems and networking You have excellent More ❯
Posted:

AWS Data Architect - Contract Role - £500/pd

London, South East, England, United Kingdom
Tenth Revolution Group
principles (data quality, metadata, access control). Familiarity with big data technologies (Spark, Hadoop) and distributed computing. Advanced SQL skills and proficiency in at least one programming language (Python, Java). Additional Requirements Immediate availability for an October start. Must be UK-based with unrestricted right to work in the UK. Comfortable with occasional travel to London for on-site More ❯
Employment Type: Contractor
Rate: £500 per day
Posted:

Offensive Security Tester Red Team

London, South East, England, United Kingdom
Hybrid / WFH Options
Client Server Ltd
Penetration testing You have a keen interest in Cyber Security and understanding of key concepts and protocols You can code with any OO programming language (e.g. Python, C++, C#, Java) You have experience of using different operating systems and networking technologies You have a good understanding (and interest in) low level concepts including operating systems and networking You have excellent More ❯
Employment Type: Full-Time
Salary: £50,000 - £70,000 per annum
Posted:

Flood Risk Consultant

London, South East, England, United Kingdom
Penguin Recruitment Ltd
Software System Lifecycle, including front-end and back-end aspects Experience of working with software systems/programmes specifically within an environmental setting Demonstrable experience in the use of Java Middleware, API, Docker, and MQ software Outstanding knowledge of performance and security in Enterprise Systems Experience of working with networks: LAN & WAN/Internet and Security Prior experience of Database More ❯
Employment Type: Full-Time
Salary: £80,000 - £85,000 per annum
Posted:

Flood Risk Consultant

London, United Kingdom
Penguin Recruitment
Software System Lifecycle, including front-end and back-end aspects Experience of working with software systems/programmes specifically within an environmental setting Demonstrable experience in the use of Java Middleware, API, Docker, and MQ software Outstanding knowledge of performance and security in Enterprise Systems Experience of working with networks: LAN & WAN/Internet and Security Prior experience of Database More ❯
Employment Type: Permanent
Salary: £80000 - £85000/annum
Posted:

Artificial Intelligence Engineer

City of London, London, United Kingdom
EC Markets UK
and incident response. Qualifications Bachelor’s degree in Computer Science, Engineering, or equivalent. Required Skills Software development experience with proven expertise in at least one programming language (Python/Java/Typescript) with experience building APIs and integrating backend systems. Solid Machine Learning fundamentals. Model Context Protocol for managing context and tool interfaces for agents. LLM integration patterns, including prompt More ❯
Posted:

Artificial Intelligence Engineer

London Area, United Kingdom
EC Markets UK
and incident response. Qualifications Bachelor’s degree in Computer Science, Engineering, or equivalent. Required Skills Software development experience with proven expertise in at least one programming language (Python/Java/Typescript) with experience building APIs and integrating backend systems. Solid Machine Learning fundamentals. Model Context Protocol for managing context and tool interfaces for agents. LLM integration patterns, including prompt More ❯
Posted:

Artificial Intelligence Engineer

london, south east england, united kingdom
EC Markets UK
and incident response. Qualifications Bachelor’s degree in Computer Science, Engineering, or equivalent. Required Skills Software development experience with proven expertise in at least one programming language (Python/Java/Typescript) with experience building APIs and integrating backend systems. Solid Machine Learning fundamentals. Model Context Protocol for managing context and tool interfaces for agents. LLM integration patterns, including prompt More ❯
Posted:

Artificial Intelligence Engineer

london (city of london), south east england, united kingdom
EC Markets UK
and incident response. Qualifications Bachelor’s degree in Computer Science, Engineering, or equivalent. Required Skills Software development experience with proven expertise in at least one programming language (Python/Java/Typescript) with experience building APIs and integrating backend systems. Solid Machine Learning fundamentals. Model Context Protocol for managing context and tool interfaces for agents. LLM integration patterns, including prompt More ❯
Posted:

VP of Rights

Central London, London, United Kingdom
Stats Perform
From real-time data collectors and AI specialists to elite journalists and cloud engineers, our team turns raw numbers into magic. Our tech experts work with advanced cloud solutions, Java, JavaScript, and Python, using AI and machine learning to extract insights and deliver them via APIs. Were looking for a visionary and commercially astute leader to join our Rights team More ❯
Employment Type: Permanent
Posted:

VP of Rights

london, south east england, united kingdom
Stats Perform
From real-time data collectors and AI specialists to elite journalists and cloud engineers, our team turns raw numbers into magic. Our tech experts work with advanced cloud solutions, Java, JavaScript, and Python, using AI and machine learning to extract insights and deliver them via APIs. Were looking for a visionary and commercially astute leader to join our Rights team More ❯
Posted:

VP of Rights

london (city of london), south east england, united kingdom
Stats Perform
From real-time data collectors and AI specialists to elite journalists and cloud engineers, our team turns raw numbers into magic. Our tech experts work with advanced cloud solutions, Java, JavaScript, and Python, using AI and machine learning to extract insights and deliver them via APIs. Were looking for a visionary and commercially astute leader to join our Rights team More ❯
Posted:

Software Engineering Intern 2026

london, south east england, united kingdom
myGwork - LGBTQ+ Business Community
your skills. Able to commit to a 10week internship from the 22nd of June 2026until the 28th of August 2026 Knowledge ofcomputer science fundamentals and any major programming languages(Java/JavaScript/Python/Kotlin/Swift) Ability to explain complex concepts to diverse audiences Commitment to best coding practices and code reviews Basic knowledge of modern web technologies More ❯
Posted:

Full Stack Developer

Croydon, London, United Kingdom
Hybrid / WFH Options
Experis
Title: Full Stack Developer Max rate: £550p/d via Umbrella Clearance required: SC Duration: 4 Months Location: Croydon (Mostly Remote) Job Description: Senior Engineer with either full stack (Java/React/Node.js) or backend (Java and ideally Kafka) * Experience of Java * Experience of Spring framework or equivalent. * Knowledge of software design patterns and when to apply them * Excellent More ❯
Employment Type: Contract
Rate: £500 - £550/day
Posted:

Principal Software Engineer - Unified Client Experience (UCX)

City of London, London, United Kingdom
Hybrid / WFH Options
Hargreaves Lansdown
or Wealth Management. Solid experience in building and deploying frontend applications in React or React Native with hands-on knowledge of secure API design and authentication services. Experience in Java and Spring Boot, or iOS (Swift) or Android (Kotlin) along with exposure to Figma and Vercel is a big plus. Capable of writing clean, maintainable and well-tested code. Comfortable … DB) AWS and cloud-native microservices containerised architecture (e.g. K8s, Docker) Modern software engineering practices with CI/CD pipelines and DevOps principles TDD/BDD testing frameworks Desirable Java (21) and Spring Boot Interview Process 3 Stage Interview Stage 1 - Discussion with our Hiring Manager (30mins): A chance to talk with our Hiring Manager in more detail about the More ❯
Employment Type: Permanent, Work From Home
Salary: £10,000
Posted:

Java Developer

City of London, London, United Kingdom
HCLTech
providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of $13+ billion. Java - must have A Java Developer is a specialized programmer responsible for designing, developing, and maintaining Java-based applications. Their role spans the entire software development lifecycle, from conceptualization to deployment … and maintenance. They collaborate with software engineers, web developers, and other team members to create scalable and efficient solutions. Key Responsibilities Java developers are tasked with various duties, including: Designing, implementing, and maintaining Java-based applications that meet business objectives. Writing clean, efficient, and testable code while adhering to best practices. Analyzing user requirements to define system functionality and application … Ensuring applications are optimized for performance, scalability, and security. Collaborating with cross-functional teams, including project managers, quality assurance analysts, and technical architects. Skills Required To excel as a Java Developer, one must possess a mix of technical and soft skills: Proficiency in Java and its ecosystems, including frameworks like Spring, Hibernate, and Java EE. Strong understanding of Object-Oriented More ❯
Posted:

Java Developer

London Area, United Kingdom
HCLTech
providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of $13+ billion. Java - must have A Java Developer is a specialized programmer responsible for designing, developing, and maintaining Java-based applications. Their role spans the entire software development lifecycle, from conceptualization to deployment … and maintenance. They collaborate with software engineers, web developers, and other team members to create scalable and efficient solutions. Key Responsibilities Java developers are tasked with various duties, including: Designing, implementing, and maintaining Java-based applications that meet business objectives. Writing clean, efficient, and testable code while adhering to best practices. Analyzing user requirements to define system functionality and application … Ensuring applications are optimized for performance, scalability, and security. Collaborating with cross-functional teams, including project managers, quality assurance analysts, and technical architects. Skills Required To excel as a Java Developer, one must possess a mix of technical and soft skills: Proficiency in Java and its ecosystems, including frameworks like Spring, Hibernate, and Java EE. Strong understanding of Object-Oriented More ❯
Posted:

Java Developer

london, south east england, united kingdom
HCLTech
providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of $13+ billion. Java - must have A Java Developer is a specialized programmer responsible for designing, developing, and maintaining Java-based applications. Their role spans the entire software development lifecycle, from conceptualization to deployment … and maintenance. They collaborate with software engineers, web developers, and other team members to create scalable and efficient solutions. Key Responsibilities Java developers are tasked with various duties, including: Designing, implementing, and maintaining Java-based applications that meet business objectives. Writing clean, efficient, and testable code while adhering to best practices. Analyzing user requirements to define system functionality and application … Ensuring applications are optimized for performance, scalability, and security. Collaborating with cross-functional teams, including project managers, quality assurance analysts, and technical architects. Skills Required To excel as a Java Developer, one must possess a mix of technical and soft skills: Proficiency in Java and its ecosystems, including frameworks like Spring, Hibernate, and Java EE. Strong understanding of Object-Oriented More ❯
Posted:

Java Developer

london (city of london), south east england, united kingdom
HCLTech
providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of $13+ billion. Java - must have A Java Developer is a specialized programmer responsible for designing, developing, and maintaining Java-based applications. Their role spans the entire software development lifecycle, from conceptualization to deployment … and maintenance. They collaborate with software engineers, web developers, and other team members to create scalable and efficient solutions. Key Responsibilities Java developers are tasked with various duties, including: Designing, implementing, and maintaining Java-based applications that meet business objectives. Writing clean, efficient, and testable code while adhering to best practices. Analyzing user requirements to define system functionality and application … Ensuring applications are optimized for performance, scalability, and security. Collaborating with cross-functional teams, including project managers, quality assurance analysts, and technical architects. Skills Required To excel as a Java Developer, one must possess a mix of technical and soft skills: Proficiency in Java and its ecosystems, including frameworks like Spring, Hibernate, and Java EE. Strong understanding of Object-Oriented More ❯
Posted:

Lead Java Developer

Greater London, England, United Kingdom
CMC Markets
in coding standards, code reviews, and release management. Respond to real-time trading issues in a fast-paced environment, ensuring minimal business disruption. Key Skills & Experience: Strong expertise in Java , Spring Framework/Spring Boot , or similar backend frameworks. Proven experience designing and developing API-based, microservices-driven architectures . Solid understanding of low-latency, multi-threaded systems and distributed More ❯
Posted:

Lead Java Developer

london, south east england, united kingdom
CMC Markets
in coding standards, code reviews, and release management. Respond to real-time trading issues in a fast-paced environment, ensuring minimal business disruption. Key Skills & Experience: Strong expertise in Java , Spring Framework/Spring Boot , or similar backend frameworks. Proven experience designing and developing API-based, microservices-driven architectures . Solid understanding of low-latency, multi-threaded systems and distributed More ❯
Posted:

Senior Java Developer

London, United Kingdom
Apexon Technology
improvement. Backed by Goldman Sachs Asset Management and Everstone Capital, Apexon now has a global presence of 15 offices (and 10 delivery centers) across four continents.We enable Skill Set Java (11) Junit 5 React React Testing Library (Frontend Unit testing) Cypress (Frontend E2E Testing) Spring Boot (Microservice Architecture) Sybase Mongo DB Kubernatis Understanding on Cloud infra (Snowflake) Roles & Responsibilities Day More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Full Stack Java Developer

London, United Kingdom
Rec Solutions
Full Stack Java Developer (90k-100k plus benefits and bonus) This is a hybrid role, 2 days in the office, 3 days remote What the role offers: Competitive salary with growth opportunities. Opportunity to work on cutting-edge fintech solutions. A collaborative and supportive team environment. Exposure to a wide range of technologies and the chance to shape the system … As we expand, we're looking for a talented developer to join our team and play a crucial role in shaping our platform. Role Overview: As a Full Stack Java Developer, you will work across the full stack, collaboratively contributing to front-end, back-end, system architecture, and infrastructure. You will be responsible for designing and developing scalable, robust software … solutions using Java, with a focus on system design and performance. AWS experience is a plus, and financial industry knowledge would be beneficial but not a must. Key Responsibilities: Work on full-stack development, including front-end, back-end, and infrastructure. Collaborate closely with a small, highly skilled team to deliver innovative solutions. Optimize system performance, troubleshoot issues, and continuously More ❯
Employment Type: Permanent
Salary: GBP Annual
Posted:

Java Developer / Technical Lead - Fintech

London, England, United Kingdom
Hybrid / WFH Options
Client Server
Java Developer/Technical Lead London/WFH to £115k Are you a hands-on Java Developer with technical leadership skills? You could be progressing your career in a hands-on leadership role at a global FinTech/CFD trading company that has been consistently voted as one of the UKs top employers. What's in it for you: Salary … Carers networks with an annual budget for organising events and projects that foster an open, diverse and inclusive culture Plus a range of other perks Your role: As a Java Developer/Technical Lead you'll join a fairly new team working on a new crypto offering and split your time between hands-on development with people management (70/… engineers and ensure code quality, observability, scalability and security are embedded into high-quality, high-impact releases. You'll be working with a modern, cloud native tech stack using Java, Spring Boot, AWS, Kafka and CI/CD to build highly scalable, distributed systems with 24/7 availability. Location/WFH: There's a hybrid model with two days More ❯
Posted:

Java Developer / Technical Lead - Fintech

London, South East, England, United Kingdom
Hybrid / WFH Options
Client Server Ltd
Java Developer/Technical Lead London/WFH to £115k Are you a hands-on Java Developer with technical leadership skills? You could be progressing your career in a hands-on leadership role at a global FinTech/CFD trading company that has been consistently voted as one of the UKs top employers. W hat's in it for you … Carers networks with an annual budget for organising events and projects that foster an open, diverse and inclusive culture Plus a range of other perks Your role: As a Java Developer/Technical Lead you'll join a fairly new team working on a new crypto offering and split your time between hands-on development with people management (70/… engineers and ensure code quality, observability, scalability and security are embedded into high-quality, high-impact releases. You'll be working with a modern, cloud native tech stack using Java, Spring Boot, AWS, Kafka and CI/CD to build highly scalable, distributed systems with 24/7 availability. Location/WFH: There's a hybrid model with two days More ❯
Employment Type: Full-Time
Salary: £100,000 - £115,000 per annum
Posted:
Java
London
10th Percentile
£57,500
25th Percentile
£75,000
Median
£105,000
75th Percentile
£132,500
90th Percentile
£142,500