301 to 325 of 327 Java Jobs in the City of London

/lead. The Individual should be passionate about technology, experienced in developing and managing cutting edge technology applications. Technical Skills: In Depth experience in the field of Automation testing, Java, Database QA Testing Good understanding of OOPS concepts and strong programming skills in Selenium and Java or C# Hands-on experience of working with test automation tools and frameworks for More ❯

ideally suited to a software engineer or quantitative developer with experience delivery solutions directly for trading desks, who has excellent Python skills, with a solid background in one of Java/C C#, who has experience building MLOPs pipelines for data scientists, AI engineers, quants, traders and leadership, to build strategic systems and enhance production systems. You should apply for … this role if you are/have: 10+ years software engineering/quantitative development within financial markets Excellent Python (NumPy, PyTorch, TensorFlow, Scikit); solid OO background in C++, Java or C# Strong MLOps and AI/ML model lifecycle experience Strong financial product knowledge and experience delivering solutions for trading/pricing Degree educated or higher in a relevant discipline More ❯

work on cutting-edge technology where speed, scalability, and resilience are key. About the Role Lead the design and development of secure, high-performance eFX systems Define and evolve Java patterns and techniques optimised for ultra-low latency (<40s) Architect fault-tolerant, scalable trading systems Influence technical strategy, architecture, and product roadmaps Collaborate with multiple teams to deliver best-in … class E-trading platforms Ensure all solutions meet security, compliance, and performance standards What You'll Bring Strong experience in software engineering, architecture, and database design Expert-level Java development, including low-GC and lock-free patterns Proven background in FX trading systems, pricing, and risk management Deep understanding of CPU architecture, cache optimisation, and Linux performance tuning Expertise in … business needs into scalable technical solutions Desirable Experience Leadership across multiple feature teams or complex projects Exposure to E-trading and real-time data platforms Experience with low-latency Java frameworks and performance monitoring Strategic input into enterprise or domain architecture Reasonable Adjustments: Respect and equality are core values to us. We are proud of the diverse and inclusive community More ❯

with the business, delivering interactive analytics tools that provide real-time insights into day-to-day operations, P&L, and more. The tech stack is React-based UI, with Java/Python on the backend and a data layer. The environment is greenfield, with significant ownership and the chance to shape frameworks from the ground up. Key Responsibilities: Develop and … E-Trading and FX experience required; (AVP) FX knowledge beneficial but not essential Confident communicator, comfortable working with business users and quants Willingness to work across the stack (some Java/Python exposure is a plus) Nice-to-Have: Experience in banking or trading environments Previous work with data visualisation or analytics platforms Team & Culture: Small, collaborative team with direct More ❯

Java Developer – ION Platform – Contract We are seeking a seasoned Java Developer with deep expertise in trading platforms and specifically outstanding knowledge of the ION ecosystem. The role involves building and supporting low-latency, multi-threaded systems for Rates and Credit markets. Key Responsibilities: Develop and maintain trading applications using Java and Spring Framework. Integrate and support ION MarketView, XTP … Fidessa, and Treasury Suite platforms. Collaborate with global teams in Agile environments. Implement RESTful APIs and cloud-native solutions. Required Skills: 10+ years Java development experience. Strong multi-threading and low-latency programming. Deep understanding of financial instruments (Rates, Credit, Derivatives). Proven experience with ION platforms and FIX protocol. Familiarity with functional programming and SOLID principles. More ❯

who eFX trading low latency trading development experience which is coupled with experience in pricing as well as the associated architecture that sits behind the programming. The is a Java focused focus and as such very strong Java skills are required More ❯

Serverside Kotlin Engineers We are looking for multiple Kotlin Engineers, who come from a Java background with ideally some knowledge of React.JS or TypeScript to work on a long term project. You will have minimum 3+ years serverside Kotlin experience 2 days a week in London, 3 days WFH Stack - Java/Kotlin, AWS, Kafka, React.js £95k - £125k More ❯

likely Join my hospitality customer to lead the development of cutting-edge Android apps! We're looking for a Tech Lead with circa 10+ years of experience in Kotlin, Java, and Jetpack Compose, who thrives on clean architecture, scalable design, and mentoring teams. Proven experience leading Android teams and mentoring developers. Deep expertise in Kotlin, Java, RxJava, and Jetpack Compose. More ❯

Title: Senior Kotlin Developer Client: Leading Trading Firm Rate: Up to £850 p/d Duration: 6 Month - Rolling Location: London - Hybrid We are looking for a Java Developer, with strong experience working in the finance sector, to join a leading trading firm based in London and help them with a greenfield built out of a next generation high performance … offer! This is a 6 month rolling contract with very high chance of extension! Skills/Experience Strong hands-on/commercial coding experience in Kotlin Experience working with Java Strong experience working in the finance sector - e-trading experience a big plus!! Strong Communication skills A personality and genuine passion for technology! If this sounds like something that may More ❯

more sustainable, customer-focused future. On Offer: Up to £75k (DOE). Permanent role. 2 days a week onsite in Central London. Key requirements: Design, implement, and maintain automated Java test frameworks for APIs, web services, and large-scale enterprise apps. Build and manage Selenium WebDriver test suites with Cucumber and BDD. Mentor junior testers and encourage a culture of … excellence. You’ll need: 5+ years’ experience in test automation with Java as your primary language. Strong expertise in Selenium WebDriver , Cucumber , and BDD practices. AWS knowledge and SQL/database experience. This is a great time to join an exciting company and work on impactful projects with global reach. They offer hybrid working with 2 days per week in More ❯

to production - writing robust, scalable Python code Collaborating with quantitative analysts to implement models and frameworks Interacting with some legacy codebases, ideally in another OOP language (C C#/Java) What they’re looking for: Solid professional experience as a Quant Developer (or software developer with mathematical background) Strong programming skills in Python, with the ability to write production-grade … code Experience with at least one other OOP language (C++, C#, or Java) Background in commodities trading, risk, or pricing Familiarity with numerical libraries, performance optimisation, and clean software design principles Confident working closely with quants and traders in a fast-paced environment More ❯

a Software Developer, we're looking for someone who can support the client, editing and writing test scripts in Selenium/Appium and who has a basic understanding of Java, JavaScript or Python. Risk Mitigation : You'll be able to address Risk from an early stage, helping create action plans to reduce this risk, which in turn improves Customer Retention … partner the customer and help them along their journey, allowing them to hit their customer goals and milestones, providing a good ROI. Tech experience required : Software development experience using Java, JavaScript, Python, C Sharp CI/Automation Technologies such as Appium, Selenium, Jenkins, Maven, TestNG, JMeter If the above sounds like you and you're excited about joining a global More ❯

maintain databases ( SWMFS DBA , VMDS , SQL , Oracle ). Utilize and manage source control systems and follow standard software development processes . Develop and maintain tools and applications using Magik , Java , JSF , and FME . Troubleshoot, debug, and resolve complex system and application issues. Support installation and configuration of Smallworld suite components and apply operating system patches , fixes , and third-party … Skillset/Additional Requirements: 5+ years of hands-on experience with Smallworld PNI, Core SW4/SW5, EO, GDO, GTO, GSS, GSA, DM, MES, NRM, K8. Proficiency in Magik, Java, VMDS, and Oracle. Strong skills in SQL, shell scripting, and log/debug analysis. Experience installing, configuring, and maintaining Smallworld suite and third-party software. Proven experience in live system More ❯

Bonhill Partners are currently partnering with a global crypto trading firm in their search for a Python Quantitative Developer. The role focuses on optimizing balance sheet utilization, transfer pricing, and liquidity management across crypto and fiat products, supporting 24/ More ❯

Software Engineer - Python/C++ - Up to £140,000 Base Salary - 2 years experience + One of the most successful and profitable systematic trading firms are looking for the next generation of talented engineers to invest in. You would get More ❯

Back End Engineer - Java, Python, AWS, MySQL, NoSql, REST APIs, Microservices, Machine Learning, Artificial intelligence (Remote or Hybrid - You choose!) Back End Engineer:- You will be joining a fast-growing, research-driven company building an artificial intelligence using novel machine learning techniques. My client is revolutionising their industry with a track record of building things that others have ruled out … as impossible. The Back End (Java) engineer will join a very bright, talented team of engineers with the guidance of technologists who have help build up some of the best known technology companies today. You will have a great opportunity to work with a variety of languages, frameworks and tools. Applicants will need a background in Java and/or … Python with a focus on Server side technologies. Core skills for the Back End Engineer: 12mths+ in a commercial Development role Solid experience of Java Good knowledge of Cloud Technologies (AWS) and Microservices Degree in Computer Science, Engineering, or a related field, or equivalent hands-on experience in engineering. Experience or interest in AI or Machine Learning Salary for the More ❯

Full Stack Developer – Java, React/Typescript, Front Office, Credit, Risk, Investment Banking, London - Paying up to £86,000 My Client, A Leading Investment Bank is seeking an experienced Full Stack (Java/React) Developer to join their London Team on a permanent Basis. You will join their Credit Trading team, assisting with the enhancement and revamp of their current … front office users to ensure that the platform is built out efficiently. To be successful in this role, you would need the following: Strong hands-on coding experience utilising Java within a Front Office Environment, Prior experience working within Investment Banking is highly beneficial, in particular, Credit Risk/Trading Good understanding/experience of Front – End technologies like UI … Constraints, React or Typescript Strong understanding in Fundamental Java Principals Prior expertise with deploying RESTful and event driven APIs. Previous experience working in teams following an agile methodology is beneficial More ❯

skills, and a proactive, problem-solving mindset. 🔧 Responsibilities & Skills Required Mobile Automation: Proven experience working on Android and iOS device automation . Programming Expertise: Strong proficiency in Python and Java — must have . Frameworks: Hands-on experience with Python or Java-based frameworks such as PyNum, PyTest, PyUnit, Django, PyCharm , etc. — must have . Debugging Tools: Familiarity with Android and More ❯

Software Engineering Manager - Java, AWS, MySQL, NoSql, REST APIs, Microservices, Artificial intelligence (Hybrid) Description for the Software Engineering Manager role:- You will be joining a fast-growing, small to medium sized Saas Company based in London. The Software Engineering Manager will be managing a very bright, talented team of engineers and working closely with the founder and Head of Product … including AI and ML. Core skills/Experience for the Software Engineering Manager role: 8yrs+ in Development roles 3yrs+ Managing Software Engineering teams Full Stack development experience including strong Java, Microservices and AWS Happy to still be "hands on" as well as managing a team/Strategy. Strong degree in Computer Science or a related field from a top tier … going through growth. Salary for the Software Engineering Manager will depend on experience, but expect between £110,000 and £130,000 + Pension + competitve benefits Software Engineering Manager - Java, AWS, MySQL, NoSql, REST APIs, Microservices, Artificial intelligence (Hybrid) Applicants must have the right to work in the UK, no sponsorship is offered for this role More ❯

QA Engineer (Java) 📲| Fintech Trading 🚀 💰 £70,000 - £80,000 + Bonus + Benefits 📍 Hybrid - 3 days/week in Central London Join a collaborative, engineering-led team ensuring the stability and performance of a high-volume, global electronic trading platform. You’ll write clean, quality Java-based automation code to contribute to an internal Java-based test automation framework, catching … issues before they hit production and helping deliver flawless, high-performance user experiences. What You’ll Do Build and maintain robust Java test automation Work on an internal Java-based test automation framework used across all teams handling high-traffic, real-time trades. Collaborate with developers to improve quality at every stage. Own QA processes for performance, reliability and user … experience. What You Bring Strong experience with Java automation testing, API & backend testing. Background in automation testing for complex, high-performance platforms. Passion for quality and attention to detail in fast-paced environments. ⭐ BONUS POINTS: Experience in electronic trading, FX, banking or fintech domains Shape the quality of software that millions of trades rely on - apply now More ❯

Have you got 1-2 years experience as a Java Developer and are looking for the next step in your career? Junior Software Engineer – Global FX Trading Location – 3 days hybrid in London Salary - £55-65,000 + bonus Our longstanding partner, who are leading at the forefront of FX trading around the world, are on the hunt for a … Junior Software Developer who has approx. 1 year experience developing software in the financial space using Core Java without frameworks, to join the London team. Having been born from one of London’s largest trading firms, they are now expanding into global markets with their high performant FX trading products, consuming over 5 billion messages a day. This is an … the smartest engineers on the market, with incredible career progression opportunities to rapidly build your career up to senior. A Junior Software Developer must have the following experience: Core Java Multithreading Concurrency High performance, low latency environment BSc or MSc in Computer Science from Russell Group university Benefits you will enjoy as a Junior Software Developer: Health insurance Dental insurance More ❯

the technical direction, mentor a small team, and work directly with senior leadership to deliver the roadmap. What you’ll be doing: Own the mobile roadmap & architecture (Flutter, Swift, Java) Lead from a technical perspective: design, code, review, and mentor Integrate with complex third-party SDKs (BLE, mobile access, indoor wayfinding) Drive engineering excellence in testing, performance, monitoring, and CI … and product teams to deliver new features What we’re looking for: 3+ years of Flutter app development in production environments Strong background in iOS/Android (Swift/Java) Experience with state management, testing frameworks, monitoring tools (Crashlytics, Sentry, etc.) Ability to guide technical decisions and mentor engineers Excellent communication skills, with a focus on user experience If you More ❯

minutes, without the never-ending manual work or compliance risks. Having just received their Series A funding, they’re hiring Senior Backend Engineers with Kotlin (or a combination of Java & Kotlin experience) to build new product features, improve performance and scalability, and help define technical direction within a growing engineering team. A Senior Backend Engineer will have: Start-up or … scale-up experience BSc in Computer Science or STEM subject from Russell Group university Have worked in product-focused tech companies Kotlin (Can have also worked with with Java) Spring Boot You will enjoy many great benefits too: Flexible work hours Bonus Share options Personal development budget Private healthcare, dental and eye care Drinks and snacks provided in office Collaborate More ❯

complex and technical challenges. THE ROLE: Work from home and secure sites in your local area Work collaboratively with other team members to build robust Web Apps Code in Java and other Web App languages Discuss the SDLC with senior team members and management Solve complex technical challenges THE PERSON: Web App development experience DV Clearance that is active Reference … BBBH21974 Keywords: Java, Web Apps, Architect, Architecture, Remote, Hybrid, eDV, Enhanced Developed Vetting, Security Cleared, MoD, If you are interested in this role, click 'Apply Now' to forward an up-to-date copy of your CV. We are an equal opportunities employer and welcome applications from all suitable candidates. The salary advertised is a guideline for this position. The remuneration More ❯

Front Office Full-Stack Engineer – Java/React London 3/2 Hybrid Working up to £100,000 base + discretionary bonus I am partnered with a global financial institution undergoing an exciting multi-year technology transformation. You’ll play a key role in modernising the Rates and Credit Fixed Income technology landscape - designing and delivering cutting-edge solutions that … tech domains. Partner with business stakeholders to deliver impactful features quickly and effectively. Ensure the platform is scalable, maintainable, and operationally efficient for the long term. Requirements: Strong Core Java experience, with solid understanding of concurrency, collections, and object-oriented design. Familiarity with distributed systems, event-driven architectures, and microservice frameworks. Experience working with real-time data. Exposure or an More ❯