Java Developer – High-Performance Trading Systems - Fully Remote - up to £100k base About the Company We’re a fast-growing proprietary trading firm operating across multiple global cryptocurrency exchanges. Founded by a team with deep experience in financial markets and algorithmic trading, we’ve already achieved top-tier market-maker status, handling trading volumes exceeding $100M per month — all … within our first six months of operation. About the Role We’re looking for a talented Java Developer to join our small, high-performing engineering team. You’ll play a key role in expanding our trading infrastructure, integrating new exchanges, and building scalable, low-latency systems that power our trading strategies. This is an opportunity to work on cutting … edge systems in a start-up environment where your work has a direct and measurable impact. Key Responsibilities Develop and maintain high-performance backend services in Java Deploy code to production frequently in a fast-paced, agile environment Build scalable, event-driven systems handling large volumes of real-time data Take ownership of your code — from design through deployment More ❯
New Java role - Fully remote (UK) - Trading/Crypto We have a new Java role for a proprietary trading firm aiming to become part of one of the world’s leading Institutional Market-Makers across Cryptocurrency Exchanges. The founding team have a background in financial markets and sports data. They are seeking roughly 2+ years experience with Java … to build the trading volume. From there you will have the opportunity to push the company forward, having input in the ongoing development. Key Responsibilities Develop backend services using Java Deploy code to production daily Ensure quality of codebase is maintained and improved and follow best development practices Write it, own it - You will be responsible for maintaining the … software you write Qualifications, Skills & Experience Degree in STEM subject or equivalent software development experience 2+ years Java programming experience Experience with message passing technologies, in particular Aeron, SBE. Familiar with event driven design patterns and micro service architecture You’ve worked on large scale, distributed systems that operate with large volumes of data. An advocate of More ❯
london, south east england, united kingdom Hybrid / WFH Options
Quant Capital
Junior Core Java Developer – Trading £70,000 Plus Large Prop Bonus Quant Capital is urgently looking for a Core Java Developer to join a well known trading firm. No experience of finance is needed, finance isn’t what this firm does, tech is. Our client is an innovative tech driven trading (Equities and ETF’s) company with a … trading capital is in the order of multi millions not 3 guys in a shed. The role: This role and would suit a candidate with 2-4 years of Java Development experience. The successful candidate will be a top tier Java developer (or aspiring, half of the team don’t have a comp sic degree) with a passion … and test driven. You will be encouraged to evangelise and prototype new technologies and approaches to help shape the evolving architecture. The successful candidate must be: Experienced in Core Java Highly motivated Delivery focused and accountable. Ideally experienced in server side multi-threaded Java – if you haven’t been siloed in a big firm then don’t worry. More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Quant Capital
Junior Core Java Developer – Trading £70,000 Plus Large Prop Bonus Quant Capital is urgently looking for a Core Java Developer to join a well known trading firm. No experience of finance is needed, finance isn’t what this firm does, tech is. Our client is an innovative tech driven trading (Equities and ETF’s) company with a … trading capital is in the order of multi millions not 3 guys in a shed. The role: This role and would suit a candidate with 2-4 years of Java Development experience. The successful candidate will be a top tier Java developer (or aspiring, half of the team don’t have a comp sic degree) with a passion … and test driven. You will be encouraged to evangelise and prototype new technologies and approaches to help shape the evolving architecture. The successful candidate must be: Experienced in Core Java Highly motivated Delivery focused and accountable. Ideally experienced in server side multi-threaded Java – if you haven’t been siloed in a big firm then don’t worry. More ❯
Nottingham, England, United Kingdom Hybrid / WFH Options
UST
Job Title: Java, AWS – Senior/Tech Lead Location: Nottingham, United Kingdom (Hybrid: 3 days in office, 2 days remote) About the Role: We are expanding our Java Development team in Nottingham! If you’re passionate about building high-quality software that enhances the lives of consumers, this is your chance to work in a collaborative, self … organized engineering environment. Key Responsibilities: Design and develop software features that are both delightful and essential to users Work closely with Product Management to bring ideas to life Own and lead development on team-owned components and features Innovate within your team and contribute to your technical domain Required Skills and Experience: Experience with AWS/Cloud platforms Proven … ability to deliver high-quality applications Strong programming skills with experience in Java and modern OO principles (SOLID, SOA, HTTP, REST) Experience with Spring Boot and Spring Cloud Experience in building APIs and working within a microservices architecture Ability to collaborate effectively within a team Commitment to best practices, including Pair Programming, TDD, and BDD Desirable Skills: Front-end More ❯
mansfield, midlands, united kingdom Hybrid / WFH Options
UST
Job Title: Java, AWS – Senior/Tech Lead Location: Nottingham, United Kingdom (Hybrid: 3 days in office, 2 days remote) About the Role: We are expanding our Java Development team in Nottingham! If you’re passionate about building high-quality software that enhances the lives of consumers, this is your chance to work in a collaborative, self … organized engineering environment. Key Responsibilities: Design and develop software features that are both delightful and essential to users Work closely with Product Management to bring ideas to life Own and lead development on team-owned components and features Innovate within your team and contribute to your technical domain Required Skills and Experience: Experience with AWS/Cloud platforms Proven … ability to deliver high-quality applications Strong programming skills with experience in Java and modern OO principles (SOLID, SOA, HTTP, REST) Experience with Spring Boot and Spring Cloud Experience in building APIs and working within a microservices architecture Ability to collaborate effectively within a team Commitment to best practices, including Pair Programming, TDD, and BDD Desirable Skills: Front-end More ❯
derby, midlands, united kingdom Hybrid / WFH Options
UST
Job Title: Java, AWS – Senior/Tech Lead Location: Nottingham, United Kingdom (Hybrid: 3 days in office, 2 days remote) About the Role: We are expanding our Java Development team in Nottingham! If you’re passionate about building high-quality software that enhances the lives of consumers, this is your chance to work in a collaborative, self … organized engineering environment. Key Responsibilities: Design and develop software features that are both delightful and essential to users Work closely with Product Management to bring ideas to life Own and lead development on team-owned components and features Innovate within your team and contribute to your technical domain Required Skills and Experience: Experience with AWS/Cloud platforms Proven … ability to deliver high-quality applications Strong programming skills with experience in Java and modern OO principles (SOLID, SOA, HTTP, REST) Experience with Spring Boot and Spring Cloud Experience in building APIs and working within a microservices architecture Ability to collaborate effectively within a team Commitment to best practices, including Pair Programming, TDD, and BDD Desirable Skills: Front-end More ❯
Greater London, England, United Kingdom Hybrid / WFH Options
Quant Capital
Mid-Level Java Developer – Trading £100,000 Plus Large Prop Bonus Quant Capital is urgently looking for a Core Java Developer to join a well known trading firm. No experience of finance is needed, finance isn’t what this firm does, tech is. Our client is an innovative tech driven trading (Equities and ETF’s) company with a … trading capital is in the order of multi millions not 3 guys in a shed. The role: This role and would suit a candidate with 5-7 years of Java Development experience. The successful candidate will be a top tier Java developer (or aspiring, half of the team don’t have a comp sic degree) with a passion … and test driven. You will be encouraged to evangelise and prototype new technologies and approaches to help shape the evolving architecture. The successful candidate must be: Experienced in Core Java Highly motivated Delivery focused and accountable. Ideally experienced in server side multi-threaded Java – if you haven’t been siloed in a big firm then don’t worry. More ❯
slough, south east england, united kingdom Hybrid / WFH Options
Quant Capital
Mid-Level Java Developer – Trading £100,000 Plus Large Prop Bonus Quant Capital is urgently looking for a Core Java Developer to join a well known trading firm. No experience of finance is needed, finance isn’t what this firm does, tech is. Our client is an innovative tech driven trading (Equities and ETF’s) company with a … trading capital is in the order of multi millions not 3 guys in a shed. The role: This role and would suit a candidate with 5-7 years of Java Development experience. The successful candidate will be a top tier Java developer (or aspiring, half of the team don’t have a comp sic degree) with a passion … and test driven. You will be encouraged to evangelise and prototype new technologies and approaches to help shape the evolving architecture. The successful candidate must be: Experienced in Core Java Highly motivated Delivery focused and accountable. Ideally experienced in server side multi-threaded Java – if you haven’t been siloed in a big firm then don’t worry. More ❯
london, south east england, united kingdom Hybrid / WFH Options
Quant Capital
Mid-Level Java Developer – Trading £100,000 Plus Large Prop Bonus Quant Capital is urgently looking for a Core Java Developer to join a well known trading firm. No experience of finance is needed, finance isn’t what this firm does, tech is. Our client is an innovative tech driven trading (Equities and ETF’s) company with a … trading capital is in the order of multi millions not 3 guys in a shed. The role: This role and would suit a candidate with 5-7 years of Java Development experience. The successful candidate will be a top tier Java developer (or aspiring, half of the team don’t have a comp sic degree) with a passion … and test driven. You will be encouraged to evangelise and prototype new technologies and approaches to help shape the evolving architecture. The successful candidate must be: Experienced in Core Java Highly motivated Delivery focused and accountable. Ideally experienced in server side multi-threaded Java – if you haven’t been siloed in a big firm then don’t worry. More ❯
Croydon, Surrey, England, United Kingdom Hybrid / WFH Options
eTeam Inc
Job Title: Senior Engineer with Node.js and Python or Back End (Java and ideally Kafka) Max rate: £537/Day on Umbrella Location: Croydon (Hybrid) Clearance required: SC Transfer (Active SC only ) Contract Duration: 05 months Experience of Java Experience of Spring framework or equivalent. Knowledge of software design patterns and when to apply them Excellent … Experience of containerisation using Docker or Kubernetes Experience of Continuous Integration (CI) and Continuous Delivery (CD) A passion for delivering quality code, by use of TDD and setting high software quality standard We're also using the following technologies and patterns, it would be great if you had some of the skills, if not we can help develop them More ❯
continuous delivery environment using various open-source technologies. Understand how the various parts of our ecosystem come together to provide an entertaining experience to our players. Collaborate closely with software architects, product owners, and stakeholders to gather requirements, analyse user needs, and define the technical specifications for new features and projects, with a high degree of ownership. Communicate with … player with excellent communication and collaboration skills that demonstrates critical thinking and problem-solving abilities, and able to manage their time. 5+ years of in-depth practical experience with Java and Spring . Knowledge of other JVM-based languages, especially Kotlin is a plus. Solid understanding of web application architecture and microservices. Familiarity with the technologies in our stack More ❯