Contract Java/TypeScript Engineer – Finance & Banking 📍 London - 2 days onsite | ⏳ 6–12 months | 💰 Competitive day rate We’re partnering with a leading finance and banking client seeking an experienced Software Engineer to join on a contract basis. You’ll be working with a modern tech stack to build scalable, high-performance systems in a complex, data … heavy environment. What you’ll need Strong skills in Java , TypeScript , ReactJS , MongoDB , and PostgreSQL . Exposure to Kubernetes , Docker , and Jenkins (CI/CD). Deep understanding of OOP , design patterns , and distributed systems . Experience designing APIs and microservices . Knowledge of messaging systems and web technologies. Finance or banking sector experience is a strong plus. If … you’re a hands-on engineer who thrives in modern cloud environments and enjoys solving complex technical problems, we’d love to hear from you. 📩 Apply now or message me for a confidential chat. More ❯
Java Developer – Derivatives A leading financial trade association is seeking a Java Developer to support industry adoption of a global data and digital standards framework used across derivatives markets. Key Responsibilities Contribute to the development and implementation of open-source data models for derivatives trade processing and regulatory reporting. Write clean, efficient Java and Python code and … firms and vendors to capture requirements, extend models, and test new functionality. Document code, manage sprints, and contribute to roadmap planning. Requirements Strong software-engineering background with hands-on Java/Python development experience. Knowledge of derivatives trade lifecycle , collateral management, and/or regulatory reporting. Skilled in data modelling and working with XML/JSON formats. Experience collaborating More ❯
Trading System Engineer – Shape the Future of Trading Leading European Private Bank Ready to make a real impact on a cutting-edge trading platform? A leading European private bank is seeking a highly skilled Trading System Engineer/Architect to spearhead the transformation of their equity trading technology. This is a unique opportunity to contribute to a multi … Execution Platform. Guarantee the system's high availability for global equity market trading. Craft bespoke trading workflows tailored to the specific needs of demanding clients across multiple trading desks. Engineer and optimize systems for dynamic scalability, ensuring responsiveness to market fluctuations and events. Collaborate closely with other IB Engineering teams and project stakeholders. What You Bring: A minimum of … five years of experience in software engineering, with a focus on modern software design, architectural patterns, and performance optimization (throughput, latency, capacity). Expert-level proficiency in Java, particularly in the development of high-performance, low-latency, and microservice-based real-time trading applications. Deep understanding of trading systems, including integration with reference and market data systems, ideally within More ❯
Title: Lead Java Developer Client: Fintech Salary: Up to £135,000 + Bonus + Benefits Location: London My client is an innovative and award-winning Fintech based in London at the forefront of the eTrading space. They are after someone with a genuine passion for Java, agile development and Opensource tech to join an already highly skilled development … skills to work across all parts of the platform. (A full and detailed spec is available) This is an extremely rare opportunity to join a firm as a founding engineer at the beginning of their growth journey! The successful applicant will have the following skills and experience: Essential Skills Hands on development using Java Detail orientated developer with More ❯
Java Full-Stack DeveloperLocation: London (Hybrid)Salary: £85,000 – £90,000 + benefitsI’ve partnered with an exciting tech firm who are building software that transforms how stakeholders make important decisions. What started as a consultancy has evolved into a SaaS platform that helps organisations cut through hundreds of pages of board packs and focus on what matters. Their … products combine Java, AI, and modern web technologies to deliver clarity and speed for decision-makers.They’re estimated at nearly $30M, annually, and have 3 offices globally, with the view to grow their UK footprint. Having recently doubled down on AI-driven tools, they are tackling the biggest pain points stakeholders have, information overload and poor decision-making efficiency. … What You’ll Do Develop and enhance their core services built in Java (Spring Boot). Work on full-stack features using React (or similar modern JS frameworks). Collaborate on new product initiatives, including AI-powered tools. Contribute to architecture decisions and help shape the future Tech Stack Backend: Java (Spring Boot), Ruby on Rails (legacy), Golang More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Paritas Recruitment
eFX Software Engineer - Permanent Location: London, United Kingdom Remote First working model - Minimum 2 Days a month in office Salary: Highly competitive Market Rate on offer - DoE Paritas is working with a Tier-1 Financial institution who are looking to add a senior hire to their Digital team in the shape of an eFX Software Engineer. It is essential More ❯
we find the right person!) Are you a seasoned .NET developer ready to lead enterprise-grade software projects and drive digital transformation? We’re looking for a Senior Software Engineer to join our team and shape the future of our tech landscape. In this role, you’ll: Lead the design and development of scalable web applications using ASP.NET Web More ❯
just beginning your career, working at BGC partners provides opportunities to develop skills, make an impact and grow at an accelerated pace. Role Summary – Senior Middle Office Backend Software Engineer GBX is BGC’s flagship platform for electronic trading solutions in the Credit and Rates markets. Used by thousands of brokers and traders daily, GBX is a strategic priority … of senior and intermediate engineers Promote a culture of strong collaboration, share best practice, propose improvement Point of contact with stakeholders and the NY team 8+ years of professional java experience Strong knowledge of data structures and algorithms SQL experience Knowledge of at least one scripting language (shell, python, perl etc.) Knowledge of network programming fundamentals Bachelors degree in More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Travelfusion
business with 150 employees based in London, Shanghai and Thessaloniki. Technically, you will have knowledge of J2SE programming, understanding of web architectures and databases. Your knowledge/experience in Java will include software design principles and familiarity with algorithms and data structures. What experience you'll have ● Database knowledge (SQL, schema design) ● Java ● Some knowledge of JavaScript and … data structures ● Understanding of common OO design patterns ● Understanding of automation through Selenium, Puppeteer or similar What you might have in addition ● Computer Science background or degree ● Commercial core Java experience ● Experience of working in a fast paced startup environment ● Database experience (hibernate, JDBC) ● Understanding of network technologies (HTTP, JS, HTML, XML) ● Ability to develop clean, self-documented code More ❯
slough, south east england, united kingdom Hybrid / WFH Options
techstack Recruitment
Principal JavaScript Performance Engineer (with C++/Java/C# exposure) Location: London (Hybrid – 2 days WFH) Salary: £150,000 - £200,000 (Permanent)pension, private healthcare, gym membership, 25 days + 8 BH holiday allowance, tech/hardware budget. A high-growth software company is building the gold standard in UI frameworks and data-intensive visualisation technology . … test, release, and iterate. Contribute to a product used by developers and enterprises worldwide. What you’ll bring Mastery of vanilla JavaScript and TypeScript , with additional exposure to C++, Java, or C# . Strong knowledge of data structures, algorithms, and performance optimisation . Experience with frameworks like React, Angular, or Vue , and a deep understanding of DOM internals and … no bureaucracy, high-calibre peers. Hybrid work model: central London office, two days WFH. Premium benefits: private healthcare, pension, gym membership, cutting-edge hardware. If you’re ready to engineer the engines behind some of the world’s most demanding applications, we’d love to hear from you. Apply now and build technology trusted by the Fortune 500. More ❯