20 of 20 Permanent Java Engineer Jobs in the South East

Java Engineer Salary to £60k + Company Options Scheme Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you are eligible (have resided in the UK for the past 5 years) and prepared to go through UK SC Security Clearance This company is a Workflow & AI Orchestration Specialist. They're on … manage casework, derive insight from data and deliver citizen services. Theyre growing fast and looking for bright, dynamic people to help build their business. Role Theyre looking for a Java Engineer to join their implementation team. Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure, scalable … week. Client sites could be anywhere but will most likely be in & around London. Responsibilities Design, develop, and deploy Camunda-based process and decision automation solutions Implement and integrate Java-based microservices, APIs, and connectors within orchestration flows Translate BPMN and DMN models into executable workflows and reusable components Collaborate closely with analysts and service designers to refine and More ❯

Java Engineer • Salary to £60k + Company Options Scheme • Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you are eligible (have resided in the UK for the past 5 years) and prepared to go through UK SC Security Clearance This company is a Workflow & AI Orchestration Specialist. They're on … derive insight from data and deliver citizen services. They’re growing fast and looking for bright, dynamic people to help build their business. Role They’re looking for a Java Engineer to join their implementation team. You’ll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration — helping their public-sector clients build secure … week. Client sites could be anywhere but will most likely be in & around London. Responsibilities Design, develop, and deploy Camunda-based process and decision automation solutions Implement and integrate Java-based microservices, APIs, and connectors within orchestration flows Translate BPMN and DMN models into executable workflows and reusable components Collaborate closely with analysts and service designers to refine and More ❯

Senior Java Engineer £140k + Equity – London Java 21, Spring Boot, Microservices, AWS Sometimes the simplest ideas are born from everyday struggles. In regions where inflation is soaring, people have long worried about their savings losing value overnight. Out of that challenge came a new kind of e-wallet, one that allows you to hold money in … s not about flashy features or big promises; it’s about peace of mind and a fair chance to participate in the global economy while protecting income.As a Senior Java Engineer, you’ll play a key role in building this out and maintaining the backend infrastructure. You’ll work with Java 21+, designing APIs that connect the … mobile app to backend systems, implementing real-time currency exchange logic, and contributing to exciting greenfield projects.Tech stack: Java 21, Spring Boot, Microservices, PostgreSQL, React, CI/CD, AWS.We’re looking for strong x5 Java developers (version 17+) with excellent communication skills and the ambition to thrive in a start-up environment. The rest can be learned along More ❯

Lead Software Engineer - Java Microservices Location: London (Hybrid - 2 days on-site, Monday and Tuesday) Overview We're excited to be supporting our client in hiring a talented Software Engineer (Java Microservices) to join a dynamic, high-performing engineering team within retail banking. This is a fantastic opportunity for a technically minded individual who's passionate … stakeholders to align technical solutions with business objectives Applying Agile and Test-Driven Development (TDD) principles to build resilient, fast-running, and maintainable code Building and maintaining API-driven Java microservices hosted on public cloud infrastructure Contributing to intentional architecture while supporting emergent design through innovation, prototyping, and experimentation Automating build, test, and deployment processes using modern CI/… CD practices What We're Looking For Strong server-side Java engineering experience, ideally within large-scale, business-critical environments Proven ability to design and deliver well-tested, production-ready software with strong focus on functional and non-functional requirements Deep understanding of microservices architecture, cloud-native applications, and API development Experience with distributed systems - managing workloads at scale More ❯

At Mindera, we craft software with people we love. We're looking for a Principal Java Engineer with strong Retail experience who can join our crew Please note: This is a six month contract that sits outside IR35. You will be required to work in Paddington 3 days a week. What does the role involve? Lead technical deep … dives and knowledge sharing in the teams, anticipating challenges and proposing solutions Start influencing product and business decisions Hands-on Software Development: Write high-quality Java code using frameworks such as Spring Boot or Micronaut. Build robust services that support secure, high-volume payment transactions. Develop integrations with acquiring banks, payment gateways, and fraud detection tools. Cloud & DevOps Practices … support. Continuous Improvement: Continuously improve platform reliability, performance, and cost-efficiency. Stay up-to-date with technology trends and proactively identify innovation opportunities. Requirements Proven experience as a Principal Java Engineer in backend-heavy environments in teams having multiple levels of engineering. Strong experience in Java 17+, ideally with experience in using Spring Boot or Micronaut. Kotlin More ❯

Java/Camunda Engineer Salary to £60k + Company Options Scheme Hybrid working between your home, their offices (London Vauxhall) & client sites. NB: Please only apply if you are eligible (have resided in the UK for the past 5 years) and prepared to go through UK SC Security Clearance This company is a Workflow & AI Orchestration Specialist. They … that integrate cutting edge orchestration and 2) agentic AI capabilities. Theyre growing fast and looking for bright, dynamic people to help build their business. Role Theyre looking for a Java Camunda Engineer to join their implementation team. Youll work across Camunda BPMN/DMN process automation, API integration, and microservice orchestration helping their public-sector clients build secure … week. Client sites could be anywhere but will most likely be in & around London. Responsibilities Design, develop, and deploy Camunda-based process and decision automation solutions Implement and integrate Java-based microservices, APIs, and connectors within orchestration flows Translate BPMN and DMN models into executable workflows and reusable components Collaborate closely with analysts and service designers to refine and 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 & 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 More ❯

eFX Software Engineer (Ultra-Low Latency Java) Hybrid/Remote - London Up to £160,000 + Bonus + Benefits We're supporting a major financial services organisation hiring an eFX Software Engineer to build and optimise ultra-low-latency trading systems used across global FX markets. If you're a high-performance Java engineer who … opportunity. What you'll work on: Engineering sub-40μs latency eFX systems with high throughput and fault tolerance Designing real-time pricing, risk and trading components Evolving low-latency Java patterns (lock-free, low-GC, CPU/cache optimisation) Working closely with quants, traders, architects and senior engineers Influencing technical strategy across distributed, performance-critical systems What we're … looking for: Strong experience in low-latency Java within trading, eFX or electronic markets Deep understanding of networking (TCP/UDP/FIX), Linux tuning, performance profiling Background in designing high-performance architectures and distributed systems Strong grasp of FX pricing, risk, and trading workflows Solid engineering fundamentals: testing, CI/CD, API design, automation Why join? Work on More ❯

Currently hiring a Senior Java Engineer to join a fixed income trading team - a high-performing group responsible for building and maintaining global trading systems used daily by traders and middle office teams. These systems handle complex financial instruments, from bonds and repos to interest rate swaps and exotic portfolios, with a strong focus on performance, reliability, and … traceability. Key Responsibilities: Design, develop, test, and deploy high-quality software using Java and related technologies Conduct code reviews, ensuring clean, maintainable, and efficient code Mentor junior developers and promote technical excellence within the team Analyse and resolve performance, scalability, and concurrency issues Contribute to Agile/Scrum processes, including sprint planning and retrospectives Maintain clear and comprehensive technical … documentation Key Requirements: Strong expertise in Core Java, including multi-threading and concurrency demonstrating self-sufficiency Proven experience in low-latency systems, performance tuning, and network programming Familiarity with high-performance messaging systems Proficiency with profiling, benchmarking, and memory analysis tools Working knowledge of Linux/Bash scripting and at least one other language (e.g. Python or C#) Robert More ❯

Weather Obsess over Customer Success Work the Problem Be Curious Own the Outcome Respect Each Other YOUR IMPACT We are seeking a highly skilled and passionate Full Stack Software Engineer with a strong focus on Java to join our growing engineering team. In this role, you will be instrumental in designing, developing, and maintaining robust and scalable full … to deployment, collaborating closely with product managers, designers, and other engineers to deliver high-quality, impactful solutions. Design, develop, and implement highly performant and scalable full-stack applications using Java and related technologies. Build and maintain robust back-end services, APIs, and microservices. Develop responsive and intuitive front-end user interfaces. Collaborate with product management to understand requirements and … learning and improvement YOUR EXPERIENCE Bachelor's degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience). Professional experience as a Full Stack Software Engineer, with a strong emphasis on Java (Java 11/17). Experience with relational databases (e.g., SQL, PostgreSQL, MySQL) and ORM frameworks (e.g., Hibernate, JPA). Solid More ❯

Role: Software Engineer (Java) Location: London Salary: Competitive salary and package (Depending on level of experience) Any offer of employment is subject to satisfactory BPSS and the candidate being granted a level of security clearance which typically requires 10 years continuous UK address history, usually including no periods of 30 consecutive days or more spent outside of the 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 ❯

Job Role : Java Fullstack Engineer Job Type : Permanent Location : London, UK Work Mode : Hybrid Job Description You will be joining the innovative Information Security Cybertech Engineering team as a full stack software engineer in a global team responsible for developing web applications (Java/Angular), data engineering (Python) and solutions with third party products. You will … Experience writing complex SQL queries (Sybase advantageous). ➢ Proficient with UNIX/LINUX operating systems/commands. ➢ Understanding of API Services (SOAP, REST, Graph). Programming Language: ➢ Proficient in Java EE o with OpenJDK o with Spring 4.0+ Framework o with Spring Boot/Wildfly web servers (or similar) o with Angular 14+ More ❯

We have an exciting and rewarding opportunity for you to take your software engineering career to the next level. As a Senior Lead Software Engineer at JPMorgan Chase within the Global Technology division, you will serve as a seasoned member of an agile team to design and deliver trusted market-leading technology products in a secure, stable, and scalable … responsibilities Work with key stakeholders in Sales, Trading, QR, Operations and others globally to ensure the Secondary platform meets business requirements. Directly contribute towards the ongoing efforts to re-engineer & re-architect the existing Secondary platform to make it performant, truly highly available, stable, efficient, and scalable. Lead the effort & contribute towards the identification and implementation of opportunities to … and proficient advanced experience. Ability to solve complex problems and a track record of high performance and delivery. Strong hands-on experience implementing globally distributed real-time systems using Java and Hands-on practical experience in system design, application development, testing, and operational stability Experience in developing, debugging, and maintaining code in a large corporate environment with one or More ❯

We are hiring an experienced Senior Software Engineer with deep expertise in ultra-low-latency, high-throughput Java systems . This is a role for someone who builds systems that push performance boundaries, not just enterprise-grade services. You'll join a specialist engineering group designing fault-tolerant, sub-40μs latency pipelines, shaping architecture decisions and solving complex … technical challenges that require first principles thinking. What You'll Be Working On Designing and optimising high-performance Java services with lock-free, zero-allocation and low-GC approaches. Hardware-aware optimisation including CPU architecture, cache behaviour, kernel tuning, core pinning and memory layouts . Building and improving ultra-low-latency messaging pipelines (Multicast, TCP, IPC). Working directly … leadership on system architecture and performance strategy. Driving technical direction and mentoring senior members of the team. What We're Looking For 10+ years professional engineering experience with core Java in latency-sensitive environments. Strong knowledge of: Ring buffers Off-heap/zero-allocation techniques IPC and high-performance networking Linux kernel optimisation Domain experience in eTrading, market-making More ❯

This role focuses on building high-performance, scalable Java services at the core of an ultra-low-latency global trading platform. You'll work on complex, data-intensive systems that support real-time pricing, configuration management, and electronic trading operations. Key Responsibilities Develop software across both functional features and non-functional objectives such as performance and scalability. Build and … quantitative research and trading teams on design, usability, and platform enhancements. Produce clear technical documentation, including architecture decisions and complex code explanations. Key Requirements Strong understanding of the core Java platform. Experience in Financial Services, ideally trading/FX Experience with JavaScript/TypeScript and HTML5 (highly desirable). Solid knowledge of computer science fundamentals, including data structures and More ❯

around the world Qualifications & Experience Essential Attributes: 4+ years of experience in Software development of complex applications. Excellent understanding of design principles and considerations, best practice 4+ years of Java and C++ development experience History of applying best practices, code reviews and quality checks Familiarity with build pipeline tools and technologies such as Gitlab Must be self-motivated but 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 ❯

delivering cutting-edge solutions across industries. This role sits within a collaborative, agile environment focused on innovation, professional growth, and real-world impact. Role Overview As a Full Stack Engineer, you'll design and build modern digital services using Java and a range of front-end and cloud technologies. You'll work closely with multidisciplinary teams to deliver … scalable, secure, and user-focused solutions. Key Responsibilities Develop microservices using Java (Spring Boot). Build responsive front-end applications using JavaScript/TypeScript, React, HTML, and CSS. Use Git-based version control and CI/CD pipelines (GitHub, GitLab, Jenkins). Containerize applications using Docker and manage deployments in cloud environments (AWS or Azure). Collaborate in agile More ❯

around the world Qualifications & Experience Essential Attributes: 10+ years of experience in Software development of complex applications. Excellent understanding of design principles and considerations, best practice 10+ years of Java and C++ development experience History of applying best practices, code reviews and quality checks Familiarity with build pipeline tools and technologies such as Gitlab Must be self-motivated but More ❯