do: Build trading systems and market data infrastructure Develop quantitative research platforms and tools Optimize performance-critical financial applications Requirements: 2+ years software engineering experience Strong C Python/Java skills Trading experience preferred but not essential Our network: Pay: $150K-$800K+ based on experience Locations: London, Remote Focus: Trading platforms, risk systems, data infrastructure From high-growth prop firms More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Oliver Bernard
planning. > Drive quality across all stages of the SDLC ensuring quality is central to building software and partner with Delivery to champion their Agile ways of working. 💻 Tech Stack- Java, AWS 💡Why join? > Play a key role in the success of their business > Hybrid role (2-3 days in office) > Brand New office > 120 days a year working from abroad More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Plexus Resource Solutions
secure systems to support multi-chain environments. Collaborate with a talented team on impactful blockchain projects. What We’re Looking For Expertise in programming languages like Go, Rust, Python, Java MEV Experience Experience with APIs and distributed system architectures. A drive to innovate and build in the Web3 space. What we offering Competitive Salary: £100k - £180k Hybrid Working: 4 days More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Plexus Resource Solutions
secure systems to support multi-chain environments. Collaborate with a talented team on impactful blockchain projects. What We’re Looking For Expertise in programming languages like Go, Rust, Python, Java MEV Experience Experience with APIs and distributed system architectures. A drive to innovate and build in the Web3 space. What we offering Competitive Salary: £100k - £180k Hybrid Working: 4 days More ❯
IR35 - PAYE (paid on a weekly basis) - with a strong possibility of conversion to FTE depending on performance and budget. Your Profile: Good knowledge of object-oriented programming (e.g., Java). Familiarity with web application stacks. Experience with scripting languages: JavaScript, Python, Perl, Unix/Windows Shell. Understanding of Linux/Unix systems. Experience with relational databases (e.g., MySQL, Oracle More ❯
following: Strong expertise in React & Typescript - ideally also with Next.js Strong UI/UX intuition with a user-centric approach Fullstack exposure with Python or another backend programming language - Java, Go, Node etc Experience working in a lean start-up environment is beneficial What's on offer: Salary up to £80,000 + Benefits Central London - Flexible Remote options (Max More ❯
london (city of london), south east england, united kingdom
Principle
IR35 - PAYE (paid on a weekly basis) - with a strong possibility of conversion to FTE depending on performance and budget. Your Profile: Good knowledge of object-oriented programming (e.g., Java). Familiarity with web application stacks. Experience with scripting languages: JavaScript, Python, Perl, Unix/Windows Shell. Understanding of Linux/Unix systems. Experience with relational databases (e.g., MySQL, Oracle More ❯
london (city of london), south east england, united kingdom
Formula Recruitment
following: Strong expertise in React & Typescript - ideally also with Next.js Strong UI/UX intuition with a user-centric approach Fullstack exposure with Python or another backend programming language - Java, Go, Node etc Experience working in a lean start-up environment is beneficial What's on offer: Salary up to £80,000 + Benefits Central London - Flexible Remote options (Max More ❯
excellent working environment. Previous experience within the sports trading industry would be beneficial. Skills required: PhD in STEM related subject Proficient in several of the following: Python, C#, C++, Java Mathematical Modelling Mathematical skills, particularly a keen understanding of probabilities and statistics Analytic mindset Strong communication skills Accuracy and attention to detail Experience in data science (big data, deep learning More ❯
platform Extensive experience in using Microsoft tools like PowerPoint, Excel, Word and MPP, needed as part of day-to-day functioning Should have IAM experience and should be from Java background, not necessarily be hands-on but on a solutioning level should be able to guide team. More ❯
london (city of london), south east england, united kingdom
HCLTech
platform Extensive experience in using Microsoft tools like PowerPoint, Excel, Word and MPP, needed as part of day-to-day functioning Should have IAM experience and should be from Java background, not necessarily be hands-on but on a solutioning level should be able to guide team. More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Understanding Recruitment
living, by providing affordable access to 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 This is a fantastic More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Huxley Associates
with Finance data/reporting in a corporate or investment banking context Excellent stakeholder management and communication skills Confident using JIRA and leading distributed teams Exposure to C# and JAVA would be a nice to have Contract Details Daily Rate : Up to £1150 (Inside IR35) Location : London (Hybrid working) Start : ASAP Duration : Initial 6 months (likely extension) Please apply with More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Lawrence Harvey
implementing AWS Well Architected Security pillar. Breadth of knowledge of cloud-based IAM/PAM and authentication concepts. Strong proficiency in coding/scripting/development languages – Python, Terraform, Java ideally Experience building and fine-tuning security tooling to be deployed in cloud environments. More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Lawrence Harvey
implementing AWS Well Architected Security pillar. Breadth of knowledge of cloud-based IAM/PAM and authentication concepts. Strong proficiency in coding/scripting/development languages – Python, Terraform, Java ideally Experience building and fine-tuning security tooling to be deployed in cloud environments. More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Arrows
within consulting, fintech, or high-growth tech environments. Strong technical background in modern engineering (cloud architecture, DevOps, microservices, data platforms, and application modernization). Hands-on experience in Python, Java, or similar; confident diving into code and leading POCs. Excellent stakeholder management skills, able to influence and communicate with C-suite leaders. Experience managing distributed engineering teams and driving delivery More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Arrows
within consulting, fintech, or high-growth tech environments. Strong technical background in modern engineering (cloud architecture, DevOps, microservices, data platforms, and application modernization). Hands-on experience in Python, Java, or similar; confident diving into code and leading POCs. Excellent stakeholder management skills, able to influence and communicate with C-suite leaders. Experience managing distributed engineering teams and driving delivery More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Techfellow Limited
on experience building distributed or performance-sensitive systems, ideally with microsecond-level latency or high-throughput requirements Proven coding ability in Kotlin, or another object-oriented language such as Java (preferred), C++ or C# Familiarity with Linux APIs and comfort developing in a Linux-based environment Strong computer science fundamentals with several years’ experience in professional software development Experience applying More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Techfellow Limited
on experience building distributed or performance-sensitive systems, ideally with microsecond-level latency or high-throughput requirements Proven coding ability in Kotlin, or another object-oriented language such as Java (preferred), C++ or C# Familiarity with Linux APIs and comfort developing in a Linux-based environment Strong computer science fundamentals with several years’ experience in professional software development Experience applying More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Formula Recruitment
across a cross-functional team Work closely with product managers and business stakeholders to align technical direction with strategic goals Write high-quality, production-ready code using Kotlin or Java Lead by example through code reviews, architectural decisions, and continuous delivery practices Drive improvements in engineering practices, tooling, and team workflows Help scale backend infrastructure to meet growing product demands More ❯
processes. Throughout the implementation and maintenance process, this candidate should use data analysis to better understand quality reporting measures and improve processes. Responsibilities 1. Playwright (automation testing) (Must) 2. Java/TypeScript (strong programming skills) 3. Gatling (performance testing) 4. CI/CD (integration & deployment pipelines) Why join Sonata Software? At Sonata, you ́ll have an outstanding opportunity. The chance More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Formula Recruitment
across a cross-functional team Work closely with product managers and business stakeholders to align technical direction with strategic goals Write high-quality, production-ready code using Kotlin or Java Lead by example through code reviews, architectural decisions, and continuous delivery practices Drive improvements in engineering practices, tooling, and team workflows Help scale backend infrastructure to meet growing product demands More ❯
london (city of london), south east england, united kingdom
Sonata Software
processes. Throughout the implementation and maintenance process, this candidate should use data analysis to better understand quality reporting measures and improve processes. Responsibilities 1. Playwright (automation testing) (Must) 2. Java/TypeScript (strong programming skills) 3. Gatling (performance testing) 4. CI/CD (integration & deployment pipelines) Why join Sonata Software? At Sonata, you ́ll have an outstanding opportunity. The chance More ❯
City of London, London, United Kingdom Hybrid / WFH Options
SpectrAxe
I'm looking for an exceptional Java developer to join SpectrAxe — the first true all-to-all, anonymous FX options trading platform. If you have very strong middle-tier development skills (and/or full-stack experience with React) and are ready to take the next step in your career — where your work has real impact in a fast-moving … help shape the evolution of a live trading platform used by institutional clients globally. Get in touch to discuss the role. You’ll Be Working On: Designing and developing Java-based applications & microservices Using algorithms, Collections, Streams, and concurrency in Java 11+ Building services with the Spring Framework Writing robust tests with JUnit4/5 & Mockito Developing with PostgreSQL , optimising … for performance Using Docker & CI/CD tools to deliver production-quality releases We’re Looking For: Strong Java 11+ skills (Collections, Streams, Concurrency) Solid understanding of algorithms & data structures Spring Framework experience JUnit & Mockito testing experience PostgreSQL expertise Familiarity with Docker & CI/CD (Jenkins, GitHub Actions, etc.) Bonus Points For: Financial services , trading systems background Messaging systems (RabbitMQ More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
SpectrAxe
I'm looking for an exceptional Java developer to join SpectrAxe — the first true all-to-all, anonymous FX options trading platform. If you have very strong middle-tier development skills (and/or full-stack experience with React) and are ready to take the next step in your career — where your work has real impact in a fast-moving … help shape the evolution of a live trading platform used by institutional clients globally. Get in touch to discuss the role. You’ll Be Working On: Designing and developing Java-based applications & microservices Using algorithms, Collections, Streams, and concurrency in Java 11+ Building services with the Spring Framework Writing robust tests with JUnit4/5 & Mockito Developing with PostgreSQL , optimising … for performance Using Docker & CI/CD tools to deliver production-quality releases We’re Looking For: Strong Java 11+ skills (Collections, Streams, Concurrency) Solid understanding of algorithms & data structures Spring Framework experience JUnit & Mockito testing experience PostgreSQL expertise Familiarity with Docker & CI/CD (Jenkins, GitHub Actions, etc.) Bonus Points For: Financial services , trading systems background Messaging systems (RabbitMQ More ❯