101 to 125 of 133 Java Software Engineer Jobs in London

Senior Java Developer – London/Hybrid – Up to £90,000 + Benefits We’re partnered with an innovative fintech scale-up that’s redefining the credit and lending space. Backed by leading VC investors and operating successfully for the past decade, the business is now entering a new growth phase and looking for a Senior Java Developer to … You’ll have the opportunity to work on a modern product roadmap, building next-generation platforms and payment systems that are shaping the future of digital lending. Tech Stack Java 11+ Spring Boot AWS Microservices architecture Docker/Kubernetes Kafka (or similar messaging tools) Key Responsibilities Design and develop high-performance, low-latency software components. Contribute across the … full software development lifecycle. Write and maintain clean, testable, scalable code. Manage and enhance CI/CD and development process tooling. Collaborate in agile ceremonies and foster a culture of teamwork. Mentor junior engineers and promote engineering best practice. Work closely with cross-functional teams (Product, QA, DevOps, Data). Champion continuous improvement and innovation. Projects You’ll Work More ❯

Senior Java Developer – London/Hybrid – Up to £90,000 + Benefits We’re partnered with an innovative fintech scale-up that’s redefining the credit and lending space. Backed by leading VC investors and operating successfully for the past decade, the business is now entering a new growth phase and looking for a Senior Java Developer to … You’ll have the opportunity to work on a modern product roadmap, building next-generation platforms and payment systems that are shaping the future of digital lending. Tech Stack Java 11+ Spring Boot AWS Microservices architecture Docker/Kubernetes Kafka (or similar messaging tools) Key Responsibilities Design and develop high-performance, low-latency software components. Contribute across the … full software development lifecycle. Write and maintain clean, testable, scalable code. Manage and enhance CI/CD and development process tooling. Collaborate in agile ceremonies and foster a culture of teamwork. Mentor junior engineers and promote engineering best practice. Work closely with cross-functional teams (Product, QA, DevOps, Data). Champion continuous improvement and innovation. Projects You’ll Work 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 … JSON, DSL ). Engage with member 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 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 … JSON, DSL ). Engage with member 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 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 … JSON, DSL ). Engage with member 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 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 … JSON, DSL ). Engage with member 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 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 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 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 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 More ❯

Java/Kotlin Engineer A fast-growing Fintech company based in London, are on the lookout for talented Kotlin Engineers to join their high-impact engineering team. You don t need to be a Kotlin expert yet if you ve worked in any JVM language (Java, Scala, Clojure, etc.) and are keen to learn Kotlin, we d … closely with product managers, data engineers, and designers to deliver customer-focused financial solutions. Contribute to architectural discussions and help shape our platform as we scale. Strong experience with Java, Scala, Kotlin, or another JVM language. Solid understanding of modern software engineering principles from CI/CD to cloud-native development (AWS, GCP, or Azure). Hybrid working More ❯

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 ❯

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 ❯

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 ❯

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 ❯

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 … 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 ❯

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 … 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 ❯

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 … 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 ❯

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 … 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 ❯

Job Title: AVP Python/Java Developer Location: London (Hybrid, 2 days in-office) Salary: Up to 120k About the Role: Join a brand-new team at a leading global investment bank, working at the heart of FX Data & Analytics. Youll be building and supporting the core data and analytics layer that bridges downstream data sources and upstream React … based UIs. The work is a blend of Python and Java, with a strong focus on Python for data transformation and analytics, and Java for connecting to front-end systems. Key Responsibilities: Develop and maintain the data and analytics layer (Python/Java) supporting business-critical dashboards. Collaborate closely with quant developers and business stakeholders. Consolidate and … connecting to diverse data sources and running analytics. Help shape the technical direction of a new team and greenfield projects. What Were Looking For: Strong experience with Python and Java (framework experience; not core Java/low-latency focus). E-Trading experience. Confident working with business users and stakeholders, including quants. Flexible on the Python/Java More ❯

x 3 Software Engineers – Fullstack Java – Fully Remote with offices based in Bristol/Bath/Gloucestershire and Manchester 🌳🌳🌳 I am urgently seeking x 3 Software Engineers for one of the most exciting START UPs in the UK! They are now rapidly expanding their tech/development function and looking for the most talented Software Engineers … to join them. £50-70k (depending on experience) Fully remote Benefits package 🌳Key requirements:🌳 · Over 4 years experience working with Java, React, Javascript, Python · Experience using Cloud-based architecture, AWS or Azure · DevOps Automated Tools, Jenkins, Docker, OpenShift or Kubernetes · Experience using SQL, MongoDB or Elasticsearch · Experience using Testing technologies, Cypress, Selenium or Cucumber I have interview slots More ❯

x 3 Software Engineers – Fullstack Java – Fully Remote with offices based in Bristol/Bath/Gloucestershire and Manchester 🌳🌳🌳 I am urgently seeking x 3 Software Engineers for one of the most exciting START UPs in the UK! They are now rapidly expanding their tech/development function and looking for the most talented Software Engineers … to join them. £50-70k (depending on experience) Fully remote Benefits package 🌳Key requirements:🌳 · Over 4 years experience working with Java, React, Javascript, Python · Experience using Cloud-based architecture, AWS or Azure · DevOps Automated Tools, Jenkins, Docker, OpenShift or Kubernetes · Experience using SQL, MongoDB or Elasticsearch · Experience using Testing technologies, Cypress, Selenium or Cucumber I have interview slots More ❯

x 3 Software Engineers – Fullstack Java – Fully Remote with offices based in Bristol/Bath/Gloucestershire and Manchester 🌳🌳🌳 I am urgently seeking x 3 Software Engineers for one of the most exciting START UPs in the UK! They are now rapidly expanding their tech/development function and looking for the most talented Software Engineers … to join them. £50-70k (depending on experience) Fully remote Benefits package 🌳Key requirements:🌳 · Over 4 years experience working with Java, React, Javascript, Python · Experience using Cloud-based architecture, AWS or Azure · DevOps Automated Tools, Jenkins, Docker, OpenShift or Kubernetes · Experience using SQL, MongoDB or Elasticsearch · Experience using Testing technologies, Cypress, Selenium or Cucumber I have interview slots More ❯

x 3 Software Engineers – Fullstack Java – Fully Remote with offices based in Bristol/Bath/Gloucestershire and Manchester 🌳🌳🌳 I am urgently seeking x 3 Software Engineers for one of the most exciting START UPs in the UK! They are now rapidly expanding their tech/development function and looking for the most talented Software Engineers … to join them. £50-70k (depending on experience) Fully remote Benefits package 🌳Key requirements:🌳 · Over 4 years experience working with Java, React, Javascript, Python · Experience using Cloud-based architecture, AWS or Azure · DevOps Automated Tools, Jenkins, Docker, OpenShift or Kubernetes · Experience using SQL, MongoDB or Elasticsearch · Experience using Testing technologies, Cypress, Selenium or Cucumber I have interview slots More ❯

x 3 Software Engineers – Fullstack Java – Fully Remote with offices based in Bristol/Bath/Gloucestershire and Manchester 🌳🌳🌳 I am urgently seeking x 3 Software Engineers for one of the most exciting START UPs in the UK! They are now rapidly expanding their tech/development function and looking for the most talented Software Engineers … to join them. £50-70k (depending on experience) Fully remote Benefits package 🌳Key requirements:🌳 · Over 4 years experience working with Java, React, Javascript, Python · Experience using Cloud-based architecture, AWS or Azure · DevOps Automated Tools, Jenkins, Docker, OpenShift or Kubernetes · Experience using SQL, MongoDB or Elasticsearch · Experience using Testing technologies, Cypress, Selenium or Cucumber I have interview slots More ❯