151 to 175 of 340 Java Jobs in London

Software Engineer

Hiring Organisation
Understanding Recruitment
Location
London Area, United Kingdom
clean energy for the charging of electric vehicles. In this position, they are looking for experience in: 3+ years commercial experience JVM development - Java, Kotlin or Scala (Bonus) if you have already worked with Kotlin Microservices architecture Public cloud technologies e.g. AWS Have worked in modern, product-focused tech companies ...

AI Agent Developer (Remote)

Hiring Organisation
Outlier AI
Location
london (city of london), south east england, united kingdom
e.g., distinct services for data parsing, logic processing, and reporting). Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases. Practical experience building for live, non-mocked environments and handling multi-turn system interactions. Outstanding attention to detail ...

Senior Penetration Tester

Hiring Organisation
Arcus Search
Location
London Area, United Kingdom
just find problems — you help fix them. Have solid experience in penetration testing and offensive security Can spot vulnerabilities in code (especially Java and Node.js) Understand modern architectures — AWS, microservices, APIs Communicate clearly and give practical, actionable remediation advice Comfortable scripting and contributing to larger projects in Python Take ownership ...

Senior AI Engineer (Remote)

Hiring Organisation
Outlier AI
Location
london (city of london), south east england, united kingdom
e.g., distinct services for data parsing, logic processing, and reporting). Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases. Practical experience building for live, non-mocked environments and handling multi-turn system interactions. Outstanding attention to detail ...

Software Developer (Remote) (London)

Hiring Organisation
Outlier AI
Location
London, UK
Employment Type
Full-time
e.g., distinct services for data parsing, logic processing, and reporting). Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases. Practical experience building for live, non-mocked environments and handling multi-turn system interactions. Outstanding attention to detail ...

AI Agent Developer (Remote) (London)

Hiring Organisation
Outlier AI
Location
London, UK
Employment Type
Full-time
e.g., distinct services for data parsing, logic processing, and reporting). Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases. Practical experience building for live, non-mocked environments and handling multi-turn system interactions. Outstanding attention to detail ...

Software Engineering Consultant (Remote) (London)

Hiring Organisation
Outlier AI
Location
London, UK
Employment Type
Full-time
e.g., distinct services for data parsing, logic processing, and reporting). Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases. Practical experience building for live, non-mocked environments and handling multi-turn system interactions. Outstanding attention to detail ...

Software Developer (Remote) (London)

Hiring Organisation
Outlier AI
Location
Fitzrovia, Greater London, UK
Employment Type
Part-time
e.g., distinct services for data parsing, logic processing, and reporting). Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases. Practical experience building for live, non-mocked environments and handling multi-turn system interactions. Outstanding attention to detail ...

AI Agent Developer (Remote) (London)

Hiring Organisation
Outlier AI
Location
Fitzrovia, Greater London, UK
Employment Type
Part-time
e.g., distinct services for data parsing, logic processing, and reporting). Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases. Practical experience building for live, non-mocked environments and handling multi-turn system interactions. Outstanding attention to detail ...

Full-Stack Engineer (Remote) (London)

Hiring Organisation
Outlier AI
Location
London, UK
Employment Type
Full-time
e.g., distinct services for data parsing, logic processing, and reporting). Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases. Practical experience building for live, non-mocked environments and handling multi-turn system interactions. Outstanding attention to detail ...

Software Engineering Consultant (Remote) (London)

Hiring Organisation
Outlier AI
Location
Fitzrovia, Greater London, UK
Employment Type
Part-time
e.g., distinct services for data parsing, logic processing, and reporting). Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases. Practical experience building for live, non-mocked environments and handling multi-turn system interactions. Outstanding attention to detail ...

Full-Stack Engineer (Remote) (London)

Hiring Organisation
Outlier AI
Location
Fitzrovia, Greater London, UK
Employment Type
Part-time
e.g., distinct services for data parsing, logic processing, and reporting). Strong command of at least two major languages (e.g., Python, JavaScript, Go, or Java) and experience working with SQL databases. Practical experience building for live, non-mocked environments and handling multi-turn system interactions. Outstanding attention to detail ...

C# Developer - Front Office Engineering | Hedge Fund - London

Hiring Organisation
Undisclosed
Location
London Area, United Kingdom
central to the team’s core systems Python is widely used across quant and data groups Open to candidates from other OO backgrounds (C++, Java, Go) with strong fundamentals Exposure to high‐performance, low‐latency, or business‐critical systems is valuable Financial markets experience is not essential, but interest ...

Staff Software Engineer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 - £135,000 per annum
Hands-on experience with cloud-native technologies, containers, and CI/CD pipelines Experience influencing technical direction across teams or domains Strong expertise in: Java Distributed systems architecture API design Performance optimisation and scalability Nice to have: Previous experience at Staff/Principal/Tech Lead level Exposure to high ...

Senior C# Developer (Contract) - Front Office Engineering | Hedge Fund

Hiring Organisation
Undisclosed
Location
City of London, London, United Kingdom
essential for this role) Python within quant or data environments The client will also consider exceptional engineers from other OOP backgrounds such as C++ , Java , or Go Familiarity with UI technologies such as WinForms, WPF, Blazor Hybrid, and Blazor Web Additional interests: Experience working in front‐office or trading‐technology ...

Senior C# Developer - Head of Core Platform | Hedge Fund | London

Hiring Organisation
Undisclosed
Location
City of London, London, United Kingdom
essential for this role) Python within quant or data environments The client will also consider exceptional engineers from other OOP backgrounds such as C++ , Java , or Go Familiarity with UI technologies such as WinForms, WPF, Blazor Hybrid, and Blazor Web Leadership & Approach Experience working in front‐office or trading‐technology ...

Salesforce Engineer

Hiring Organisation
Stepstone UK
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
jargon into technical tasks and be responsible for having discussion with business stakeholders and product Work with the following tech/tools/methodology; Java, JavaScript, HTML, CSS, TDD, Agile, pair programming, Bitbucket, Bamboo Qualifications Experience in the Salesforce and Force.com platform Apex, Aura/LWC, Visualforce development with ...

Site Reliability Engineer - Private Cloud Compute

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
eliminating repetitive manual processes using automation to improve them through repeated iteration Confirmed ability to write programs using a high-level programming language like: Java, Go, Python, or Perl Proclivity towards efficient programming emphasizing improvement via complexity analysis. Experience with Kubernetes, Nginx, Envoy, Prometheus, and/or Docker. Preferred Qualifications ...

Database Reliability Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Observability mindset: build deep observability (Prometheus/Grafana/OpenTelemetry/Humio) and guardrails for secure operation. Engineering via code: deliver backend services in Java with clean relational modeling and performant DDL. Interview Process Stage 1 – 30 min chat with a team member. Stage 2 – Take‐home challenge. Stage ...

Full Stack Java Developer

Hiring Organisation
Brio Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500/hour
Title Java Developer Day Rate £500/day - Inside IR35 Location Remote - Occasional London Duration 6 months (with view to extend) ROLE DESCRIPTION Brio Digital are supporting a consultancy on a major NHS digital programme and are looking for an experienced Senior Java Developer to join a high-performing engineering … team. You will take a lead role in the design and delivery of complex, enterprise-scale solutions, bringing strong Java, AWS, and API expertise to a programme that is making a real difference to patient care across the country. KEY RESPONSIBILITIES Lead the design and development of robust, scalable Java ...

Generative AI Engineer

Hiring Organisation
Immersum
Location
City of London, London, United Kingdom
requirements and deliver iterative solutions in Agile environments Core requirements 8+ years of hands-on software engineering experience across Python and object-oriented languages (Java or C++) Strong background delivering production-grade full-stack or backend systems Deep understanding of cloud architecture (AWS, Azure, or GCP) with a focus … scalable and secure systems Strong proficiency in Python and SQL , plus experience with either Java or .NET Solid DevOps experience including Git, CI/CD pipelines, and containerisation (Docker, Jenkins or equivalent tools) Proven experience designing and building microservices-based architectures in distributed systems Advanced knowledge of database systems , including ...

SVP- Senior Full-Stack Engineer - Trading (Java/Angular/AI)

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£100,000 - £140,000 per annum
secure Driving engineering best practices across testing, automation, and performance Working closely with product and engineering stakeholders to deliver robust solutions Technology Environment Java and Spring Boot (low-latency) Distributed systems and microservices architecture AI Skills mandatory Angular or TypeScript (full-stack capability beneficial) Cloud and containerisation technologies CI/… automated testing, and observability tooling Requirements Strong experience in Java and backend development Experience building and scaling distributed systems in production environments Solid understanding of software architecture and system design Experience working in financial services or other regulated environments Exposure to the full software development lifecycle Familiarity with modern development ...

Junior Java Developer

Hiring Organisation
Information Tech Consultants
Location
City of London, London, United Kingdom
Hiring: Junior Java Spring-boot Developer Location: Onsite (London) Type: Full-time | Permanent Level: Junior London based candidates only. Job Summary: We are seeking a skilled and motivated Java Developer to join our growing software development team. As a Java Developer, you will be responsible for designing, developing, and maintaining … high-performance, scalable, and reliable Java-based applications. You’ll collaborate with cross-functional teams to deliver robust software solutions that meet business requirements. Company Profile: Information Tech Consultants Ltd is a UK-based IT consultancy working with global clients including Fortune 500 & FTSE 100 companies. We are seeking ...

Java Technical Lead - London, Wembley

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Permanent
Salary
£75000 - £80000/annum + Benefits
Title: Java Technical Lead Salary: Paying up to £80,000 per annum Location: Wembley London - 5 days on-site Our client, a well-established and diversified multinational organisation, is seeking a Java/DevOps Technical Lead to join their team. Skills Solid Experience in Java development with significant, demonstrable experience … design principles, OAuth2 authentication flows (including FusionAuth integration), and DMARC-compliant transactional email logic via SendGrid. Duties Engineering Standards: Define and enforce the clients Java and Node.js coding standards across the team - with a specific focus on robust exception handling, ninary stream handling, structured logging via Application Insights, and adherence ...

Mid Java/Clojure Engineer

Hiring Organisation
S&P Global
Location
Greater London, United Kingdom
Employment Type
Full Time
consistent and reliable curve and volatility data for over-the-counter derivatives in support of trading, research, valuation and independent price verification. As a Java/Clojure Engineer, you'll work closely with our product and data specialists across all asset classes, extending our platform while maintaining high test-coverage … Looking For: Basic Required Qualifications: Bachelor's degree in Computer Science, numerate discipline, or equivalent experience with approximately 3 years working on distributed Java platforms and web technologies Experience with modern Java versions (such as Java 17, 21) Willingness to learn and work with Clojure Proficiency in both UNIX/ ...