151 to 170 of 170 Java Jobs in London

Backend Engineer

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Permanent
product runs on. You'll design multi-tenant data and workflow services in Python and FastAPI and own the integration layer between a Java/Spring core and Python AI services. This is one of nine engineering hires across front-end and back-end. THE ROLE Investment professionals need APIs … Head of Engineering as part of the UK core team. Build multi-tenant data and workflow services, plus the integration layer between the Java/Spring core and the Python AI services. Ship through disciplined CI/CD alongside the India-based delivery organisation. Combine service design with the production ...

Python / Java Engineers - Risk

Hiring Organisation
CBSbutler Holdings Limited
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 110,000 Annual
Global Financial Services client is hiring for experienced Java or Python Engineers with strong Market Risk and FRTB IMA experience to join a high-profile regulatory technology programme. This will be a permanent role paying between £80K - £110K. Based in the City on a hybrid basis - 3 days per week … office. Experience includes: Strong Java and/or Python engineering experience Hands-on Mar click apply for full job details ...

OPEN Senior KDB+ / q Software Engineer

Hiring Organisation
Matchtech
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£545 - £730/day
quantitative analysts and technology stakeholders. Supporting platform reliability, monitoring, root cause analysis and continuous improvement initiatives. Integrating KDB platforms with wider technology ecosystems including Java, Python and messaging technologies. Essential Skills & Experience 10+ years' commercial experience developing with KDB+/q . Strong experience working within large-scale production environments. … performance optimisation. Proven production support and troubleshooting experience. Experience within Financing, Securities Lending, Prime Brokerage or Risk domains. Experience integrating KDB platforms with Java and/or Python applications. Knowledge of event-driven and messaging architectures such as Kafka . Excellent communication and stakeholder management skills. Desirable Experience Experience working ...

Software Engineer (Backend) - SC Cleared

Hiring Organisation
BrightBox Group
Location
England, Bunhill, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£440 - £500/day Remote working
Banking interfaces - Reference data services - Printing services - Integration with external systems - Development and maintenance of shared components for business-facing applications Technology Stack: - Java - JPA - RESTful APIs - SpringBoot - Microsoft Azure - GitHub - Confluence Key Responsibilities: - Collaborate with Java engineering teams and leverage AI-assisted development methods to drive accelerated delivery. - Manage ...

Contract Quality Assurance Engineer

Hiring Organisation
Deerfoot Recruitment Solutions Limited
Location
Hounslow, London, United Kingdom
Employment Type
Contract
Contract Rate
£340 - £380/day
Framework, Cypress, Karate or Appium; Postman or SOAP UI; Jenkins and GitHub; JSON, SQL, Kafka or Grafana; performance, resilience or security testing; Python or Java; ISTQB; testing AI-powered or agentic capabilities Ready to Apply? If you want your automation to protect real flights, real passengers and real operational deadlines … Automation Engineer, SDET, Senior QA Analyst, API Test Engineer, Playwright, Selenium, Cypress, Robot Framework, Karate, Appium, Postman, Jenkins, GitHub Actions, CI/CD, Python, Java, SQL, Kafka, ISTQB, Agile testing, regression testing, airline operations, load control, weight and balance, aviation software, safety-critical systems. Deerfoot Recruitment Solutions ...

Solution Architect

Hiring Organisation
Oscar Associates (UK) Limited
Location
London, United Kingdom
Employment Type
Permanent
platform capability, designing how the platform lands inside sophisticated investment firms. You will lead technical discovery with clients, design integration architectures across a Java/Spring core and Python services, and own the trade-offs that make enterprise deployments repeatable rather than bespoke. This is an engineering-side role that … solution, enterprise or technical architecture Strong grasp of REST, AWS, SaaS multi-tenancy and security fundamentals Hands-on familiarity with Python and/or Java, able to read APIs and debug integration issues with engineers Experience scoping or deploying LLM-based capability with enterprise clients, including how success was measured ...

Java Automation Test Engineer

Hiring Organisation
Sparta Global Limited
Location
South Croydon, Surrey, United Kingdom
Employment Type
Permanent
Salary
GBP 25,000 Annual
passionate and committed individuals who want to kickstart a career in technology! You must be willing to complete full-time training in our Java Automation Engineer programme and will then be assigned to work in a junior role with one of our trusted client partners as a 'Spartan' consultant. ...

Senior eTrading Developer - Rates

Hiring Organisation
Randstad Digital
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£750 - £800 per day
seeking a seasoned, high-caliber Senior e-Trading Java Developer to join the UI & Electronic Trading team. You will contribute directly to a strategic multi-year greenfield build-out and modernization of our core Rates electronic trading platform. The position offers a dynamic working environment embedded closely with global trading … desks. The ideal candidate brings extensive buy-side or top-tier investment banking experience in Rates e-trading, deep low-latency Java expertise, and strong business-facing capabilities to elicit requirements directly from traders. Key Responsibilities & Accountabilities Core Platform Build: Design, develop, and optimize greenfield components of the Rates electronic ...

Software Tech Lead

Location
London, United Kingdom
work from initial idea through to production. Design and build backend services, APIs and integrations across complex systems and data platforms. Work primarily with Java and SQL, with exposure to Angular or another modern frontend framework. Make pragmatic decisions around architecture, data, APIs and event-driven approaches. Raise engineering standards … Staff Engineer or equivalent with a strong backend/integration background and the confidence to influence technical direction. You should have strong experience with: Java and SQL Backend services and API development System integration and software architecture Automated testing and CI/CD Working across the stack, ideally with Angular ...

Technical Solution Architect

Hiring Organisation
Fruition Group
Location
London, United Kingdom
Employment Type
Permanent
understanding of settlement models and post-trade infrastructure Operate within relevant compliance frameworks (e.g. data and securities regulation) Engineering & Delivery Write production-quality code (Java, JavaScript, Solidity, SQL) Review code and help set engineering best practice Improve CI/CD pipelines, testing strategy, and observability Communication & Influence Explain complex technical …/or blockchain platforms Familiarity with tokenisation and digital asset concepts Strong API design skills (REST, event-driven architecture, etc.) Working knowledge of Java, JavaScript, Solidity, and SQL Financial Services Knowledge Understanding of post-trade processes Familiarity with securities depositories, DvP/RvP models, and atomic settlement An appreciation ...

Software Engineering Manager

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Contract, Part Time
Salary
£700 - £750 per day
Contract: Tech Lead/Software Engineering Manager - Backend (TypeScript/Java, AWS) Location: London - 1x Day Per Week Onsite Rate: £750 per day via Umbrella Programme: Greenfield Middle-Office Transformation Length: 6 months initial + further extensions (long term programme) A leading UK wealth and investment platform is hiring … collaborative approach to working through ambiguity and bringing clarity to complex problems Technical background Experience with most of the following is desirable: TypeScript, Java, AWS and wider cloud architecture, event-driven and microservices architecture, containers, relational and NoSQL databases, TDD/BDD and CI/CD. The business ...

Senior Quant Developer

Hiring Organisation
Develop
Location
London, UK
Contract Opportunity | Senior Quantitative Developer – Derivatives Pricing Like the look of this opportunity Make sure to apply fast, as a high volume of applications is expected Scroll down to read the complete job description. Remote ...

Mobile Service Layer Engineer

Hiring Organisation
Innova Solutions
Location
SW1W, Victoria, Greater London, United Kingdom
Employment Type
Contract
Contract Rate
£40 - £50/hour
Kotlin/Java Backend Developer 24 month contract Inside IR35 – Paying up to £50 per hour via umbrella. Location: Hybrid – working in London and Burgess Hill. We are currently looking for a Kotlin/Java Backend Developer, who has a proven track recording working with Java 17, Swift and Kotlin. … programming, testing, and application design for microservices or backend for front ends for mobile applications Need to have experience working with Swift, Kotlin, and Java 17 Must have experience with Spring and build automation with Maven or Gradle Worked with Sentry, ELK, Dynatrace. Worked in an Agile environment leading ...

Senior Software Engineer

Hiring Organisation
Anson Mccade
Location
City Of Westminster, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Senior Software Engineer £50000-70000 GBP Hybrid WORKING Location: Central London, Greater London - United Kingdom Type: Permanent Senior Software Engineer (Java/Fullstack) UK wide - Occasional Travel Monthly £50,000 - £70,000 Currently working with a multinational professional services and technology organisation who are in search of Software Engineers (Java ...

Senior Front Office Developer - Trading

Hiring Organisation
CMC Markets UK Plc
Location
City of London, London, United Kingdom
Employment Type
Permanent
Markets is seeking a Senior Low Latency Java Developer to join our Quantitative Strategies team within Pricing & Risk, working on our high-performance, high-frequency trading platform. This is a hands-on role at the core of our market-making technology stack, where nanoseconds matter and engineering excellence is critical. … within our London office (near Liverpool street) 5 days on site per week. The Role Ultra-Low Latency Engineering Develop and optimise high-performance Java (21+) systems for pricing, risk and trading. Build and enhance components within a low latency, high-throughput trading architecture. Apply advanced concurrency, memory management ...

Senior Low Latency Rust Engineer

Hiring Organisation
McGregor Boyall Associates Limited
Location
Central London, London, United Kingdom
Employment Type
Permanent
role is hands-on coding , with a major focus on Rust alongside modern Java. What youll work on Low-latency Rust and Java frameworks Event-sourced systems operating in the 10100 microsecond range Market-data replay, backtesting and simulation tooling High-performance market-data processing Linux, kernel and systems-level … trading, electronic trading, market data or another genuinely latency-sensitive environment . Financial Services background is not crucial. Relevant experience could include: Rust, modern Java or C++ Low-latency/high-throughput systems Algorithmic or electronic trading Market-data technologies Linux internals and kernel behaviour TCP/IP networking Solarflare ...

Macro Trade Capture Developer

Hiring Organisation
Barclays
Location
Tower Hamlets, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Role: Java Full Stack Developer (Macro Trade Capture) Location: London, UK Contract Duration: 6 months PAYE Role Overview & Project Scope We are seeking a Java Full Stack Developer based in London, UK to join our trading technology team click apply for full job details ...

SITS StuTalk Developer

Hiring Organisation
Morson Edge
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 600 - 700 Daily
particularly interested in candidates who have hands-on experience developing and supporting SITS and StuTalk. You do not necessarily need to be a specialist Java developer, but you should have demonstrable experience of writing code in a programming language. StuTalk/SITS Developer-Essential Experience Strong experience working with SITS …/e Hands-on StuTalk development experience - essential Strong PL/SQL skills Experience with Java or another programming language Experience of product/application support involving data configuration StuTalk/SITS Developer - Desirable Experience HTML experience Experience with source control software such as Git, SVN or SourceSafe Experience working ...

VP of Engineering (remote)

Hiring Organisation
Phoenix Global Search
Location
London, United Kingdom
Employment Type
Permanent
Engineering: Java Open-Source Data Infrastructure Package: £175k - £217k base + 15% bonus + options Location: UK remote-first. My client, a profitable, Series-D software company (circa 110 people, $40-45M ARR) behind one of the most widely-used open-source real-time data platforms in the world … looking for a VP of Engineering with a strong technical/Engineering background (ideally in Java). The person will own the engineering direction and execution. It's the top engineering seat: 40 engineers, 3 engineering managers reporting in to you, Person Specification: You're an architect-leaning technical leader ...