london, south east england, united kingdom Hybrid / WFH Options
Hunter Bond
Job Title: Java Software Engineer (Junior - Mid Level - Senior/Lead) Client: Elite Fintech Salary: £50,000 - £170,000 Base (+ Bonus) Location: London/Hybrid/Remote Options The role: My client is looking for an experienced Java Software Engineer to join their rapidly expanding … platform that you will be crucial in developing. Our client prides itself on maintaining cutting-edge technology and a progressive work environment. As a Java Software Engineer you will be tasked with designing and developing high-performance applications from scratch, harnessing our clients dedication to upholding the highest … balance and reimbursement programs. Rapid career progression and exposure to diverse technologies. Responsibilities: Build and maintain robust, scalable, and low-latency backend systems using Java, ensuring the platform can handle high transaction volumes Design and implement efficient algorithms and data structures to handle large-scale data processing, ensuring low More ❯
london, south east england, united kingdom Hybrid / WFH Options
Opus Recruitment Solutions
Mid-Level JavaEngineer My client is a leading financial services firm dedicated to providing innovative solutions and cutting-edge technology in the finance sector. With a commitment to excellence, they are seeking a talented and experienced Mid-Level JavaEngineer to join our dynamic team. … passionate about finance, technology, and thrive in a collaborative environment, we invite you to apply. Responsibilities: Design, develop, and maintain high-performance and scalable Java applications. Collaborate with cross-functional teams to understand project requirements and translate them into technical specifications. Implement best practices for software development, ensuring code … contribute to a culture of continuous improvement. Qualifications: Bachelor's degree in Computer Science, Engineering, or related field. 3+ years of professional experience in Java development. Solid understanding of Kotlin and experience in using it for building robust applications. Proficiency in the Spring framework, including Spring Boot. Hands-on More ❯
london, south east england, United Kingdom Hybrid / WFH Options
Caspian One
Java Software Developer – Front Office | London A leading investment bank is looking for a Java Software Developer to join its cross-asset pricing and risk team in London. This is a permanent Front Office role offering deep technical challenges, regular contact with the desk, and a clear growth … on performance, scalability, and clean architecture Contribute to the re-architecture of pricing for speed and efficiency (e.g., pre-calculated sensitivities) Tech Environment Core Java (Java 17+), multithreaded – essential Python – highly desirable React – small part of the stack, nice to have Messaging tech: Solace (Ideal), Aeron, or Kafka … etc. Candidate Profile 8+ years of experience in Java development Strong Front Office exposure – must have Pricing or risk platform experience is a plus Confident communicator with the ability (and experience) to work closely with the desk and quants Why Apply? Hybrid working: 2–3 days from home Emphasis More ❯
london, south east england, united kingdom Hybrid / WFH Options
Client Server
Java Software Engineer/Developer London to £110k Are you a bright, ambitious Software Engineer with a strong knowledge of core Java and an eagerness to learn and progress your career working on complex financial trading systems? You could be joining the Investment Management arm of … a global bank. As a Java Software Engineer you will research strategies for tailoring prices and controlling the behaviour of auto-hedging, you'll write production quality Java code used for pricing and hedging FX instruments and oversee the algorithms' performance intraday, ensuring that it is behaving … discipline You have a thorough understanding of Computer Science fundamentals such as OOP, Data Structures, Design Patters, Algorithms You have a deep knowledge of Java including garbage collection You have a strong appreciation of low latency systems and code optimisation to ensure speed You have experience within a financial More ❯
london, south east england, United Kingdom Hybrid / WFH Options
Client Server
Software Engineer/Developer (Java 17 Kotlin AWS) London/WFH to £85k Are you a technologist Software Engineer with strong Java skills looking to progress your career, working with a modern cloud based infrastructure and a range of technology? You could be joining a hugely … successful and growing commodities trading firm that specialise in trading whiskey. As a Software Engineer you'll collaborate with the Lead Engineer on the whiskey trading platform as the company looks to scale the platform and introduce new features. There's an emphasis on code quality; designing and … developing highly complex web based trading platforms working across the full development lifecycle. The technology stack includes Java 17, Kotlin, Spring Boot and AWS amongst others; you'll be encouraged to expand your skillset using the latest technologies and choosing the best tool for the job in a friendly More ❯
london, south east england, United Kingdom Hybrid / WFH Options
Fynity
Java Software Engineer – Real Time Systems | £70k - £95k + 20% Bonus Location: London (hybrid 1-2 days a week) Are you a Software Engineer passionate about building cutting-edge, high-performance systems? Do you thrive in an agile, fast-paced environment where innovation and collaboration drive success … product which delivers a seamless, cost-effective solution that integrates with banking applications to power the future of payments. The Role As a Software Engineer, you will play a key role in developing asynchronous, event-driven systems that ensure speed, scalability, and resilience. You’ll work with Java … Optimise applications for high availability and scalability. Work in a highly collaborative Kanban/Scrum environment. What We’re Looking For: Strong experience with Java 11+ (ideally Java 17) and Reactive Programming (Spring Framework, AKKA). Deep understanding of asynchronous request handling and distributed systems. Experience with event More ❯
london, south east england, united kingdom Hybrid / WFH Options
Solytics Partners
Type: Inside IR35 Start Date: May 2025 Duration: 6 months to 12 months (possibility of extension) Job Overview: We are seeking a highly skilled JavaEngineer with strong DevOps expertise for a hybrid role that blends deep backend engineering with modern infrastructure practices. You’ll be part of … This role is ideal for someone who thrives in complex, high-scale environments and has a passion for building robust, reactive systems using modern Java frameworks. Roles and Responsibilities: Design and implement highly scalable and reactive backend systems in Java. Utilize reactive programming frameworks like Kafka Streams , Akka , Eclipse … Vert.x , or Apache Flink . Leverage Java concurrency features including multithreading and Executor Services to ensure optimal performance. Apply functional programming paradigms in Java to write clean, efficient, and maintainable code. Champion sound engineering practices including SOLID principles , unit testing , and clean code methodologies. Deploy and manage containerized More ❯
london, south east england, united kingdom Hybrid / WFH Options
Computappoint
Regulatory Reporting Engineer - Java Salary: Up to £130,000 + Bonus + Benefits Role Type: Permanent Position Office Location: Central London Hybrid Model: 3 days per week in office, 2 days remote About the Role: We’re looking for a Lead Reporting Engineer with a strong Java … up a small, agile team focused on end-to-end reporting solutions—spanning regulatory and strategic platforms. This role combines hands-on development with Java , Spring Boot , SQL , and data frameworks, alongside leadership in project delivery and resource planning. You’ll serve as a subject matter expert (SME) across … and security teams to deliver robust, enterprise-grade solutions. Key Responsibilities Lead the design and development of reporting applications with a strong focus on Java (C#/.NET experience also valuable). Act as the technical lead for multiple Agile Scrum pods (approx. 5 people per team), providing functional More ❯
Horsham, Sussex, United Kingdom Hybrid / WFH Options
Envitia Group
make a real impact, grow with a supportive team, and help shape the future of data solutions in trusted sectors. The Role The Principal JavaEngineer has a critical role within the Engineering function, tasked with setting technical standards and influencing the architectural decisions that shape the company … expert who not only technically leads projects within their domain of expertise but also supports business development efforts through pre-sales engagements. The Principal Engineer will guide the technology strategy, collaborate with cross-functional teams and ensure the delivery of scalable, efficient and innovative software products. This position is … designed for an influential engineer with an extensive technical background and a strategic mindset. As a Principal Engineer, you will lead by example, champion best practices and influence the strategic direction of the overall Engineering team. Technically you will need strong Java and Angular programming experience, be More ❯
Bracknell, Berkshire, United Kingdom Hybrid / WFH Options
RDK Consulting
A leading provider of health data analytics solutions is looking for an enthusiastic and innovative Java Software Engineer to join a small team to help maintain and extend the capabilities of the platform. A Data Analytics platform has been developed with: Java Client Java Servlets Relational … and third line support for product issues and queries Essential Degree in Computing, Maths, Engineering, Science or equivalent Strong back-end and front-end Java development background Some experience of JavaScript Ability to think independently, creatively and flexibly Strong Object-Oriented Design skills Extensive Structured Query Language (SQL) experience More ❯
london, south east england, United Kingdom Hybrid / WFH Options
Understanding Recruitment
Mid Core Java Developer – London - 70k 💰 - Hybrid (London) 🏡 Our client is a highly trusted player in asset management and FX trading, looking to recruit a proficient Mid-Level Java Developer to join their apps team. This opportunity will allow you to join a company that is committed to … key role in the trading team.🔒 Work primarily within GCP, ensuring that the architecture is optimized for multi-cloud compatibility.⚙️ Key Requirements: An experienced engineer with 3-5 years of experience⭐ Strong knowledge of Core Java. 🌐 Previous experience working in TDD and CI/CD environment and pair-programming. … A generous annual bonus , historically reaching up to 30%. ⭐ Hybrid working pattern, with two days remote a week.🏡 If you’re a Core Java Developer looking to take your career to the next level, apply today to be considered for this excellent opportunity More ❯
london, south east england, united kingdom Hybrid / WFH Options
Durlston Partners
Low Latency Engineer | Fully Remote | Crypto Trading Systems We’re working with one of the leading names in Crypto, and they’re looking for a Low Latency Engineer to join their team and build out a high-performance trading system - all while working fully remotely. Role Overview: As … a key engineer, you’ll be responsible for developing ultra-low latency, high-throughput Java applications powering next-generation crypto trading. You’ll work closely with a world-class team in a fast-paced and innovative environment. What You'll Need: ✅ 8+ years of professional experience developing high … performance Java applications ✅ Proven background in designing and building low latency trading systems ✅ Bachelor’s degree in Computer Science or a STEM-related field ✅ Experience working in financial services (hedge funds, trading firms, investment banks, or exchanges) Why Join? 🌍 Fully Remote - Work from anywhere 🌟 Work at the cutting edge More ❯
Basingstoke, England, United Kingdom Hybrid / WFH Options
Understanding Recruitment
Senior Java Developer 🌍 Up to £150k 💸 - Remote Working 🏡 – 6+ years experience Our client, a GreenTech specialising in optimum renewable energy software, is revolutionising the energy industry by making sustainable living accessible and effortless for both suppliers and consumers. They’re looking for a Senior Java Developer who is … leverage advanced technologies to create impactful solutions in a fast-paced, collaborative environment. Role Highlights 🌟 Design and implement high-performance software systems using Core Java , without relying on frameworks. Tackle multi-threaded, low-latency challenges, manage extensive data streams, and optimise asynchronous programming for real-time scalability. Drive projects … that advance sustainable energy solutions, contributing to a greener future. Key Requirements ✅ 6+ years with extensive hands-on experience in Core Java, developing systems from the ground up without frameworks. Advanced proficiency in multi-threading, low-latency solutions, and data stream management. Strong understanding and practical expertise in asynchronous More ❯
Basingstoke, England, United Kingdom Hybrid / WFH Options
Understanding Recruitment
Senior Java Developer 🌍 £100k–£150k 💸 - Remote Working 🏡 – 6+ years experience (PhD Required) Our client, a GreenTech specialising in optimum renewable energy software, is revolutionising the energy industry by making sustainable living accessible and effortless for both suppliers and consumers. They’re looking for a Senior Java Developer who … technologies, being able to create impactful solutions in a fast-paced, collaborative environment. Role Highlights 🌟 Design and implement high-performance software systems using Core Java, without relying on frameworks. Tackle multi-threaded, low-latency challenges, manage extensive data streams, and optimise asynchronous programming for real-time scalability. Drive projects … A PhD in Computer Science and the ability to demonstrate extensive knowledge in Software Development. 6+ years with extensive hands-on experience in Core Java, developing systems from the ground up without frameworks. Advanced proficiency in multi-threading, low-latency solutions, and data stream management. Strong knowledge of Advanced More ❯
london, south east england, united kingdom Hybrid / WFH Options
Understanding Recruitment
Senior Core Java Developer 🤖 - Up to £120k DOE 💰 - Hybrid (London) 🏡 Our client is a highly trusted player in asset management and FX trading, looking to recruit a proficient Senior/Core Java Developer to join their apps team. This opportunity will allow you to join a company that … offerings and the team’s workflows.⚙️ Work primarily within GCP, ensuring that the architecture is optimized for multi-cloud compatibility.🔒 Key Requirements: An experienced engineer with 7-8 years of experience.🤖 Strong knowledge and hands-on experience with Core Java. You understand which networking tools are relevant to cloud … A generous annual bonus , historically reaching up to 30%. 💰 Hybrid working pattern, with two days remote a week.🏡 If you’re a Core Java Developer looking to take your career to the next level, apply today to be considered for this excellent opportunity More ❯
london, south east england, united kingdom Hybrid / WFH Options
Paragon Alpha - Hedge Fund Talent Business
and you will be interfacing with Quants, Traders and other tech teams such as Cloud; gaining great exposure to systematic trading. Stack: Kotlin/Java, AWS, Kubernetes, SQL They need someone who is an expert in Kotlin OR Java , with AWS experience being an additional benefit. The ideal More ❯
london, south east england, United Kingdom Hybrid / WFH Options
Caspian One
build a high-performance trading platform. Ensure the system meets the highest standards of reliability, scalability, and performance. Must Have: Strong experience in Core Java development. Proven expertise in electronic trading systems (no preference on asset class Fixed Income is ideal). Experience Developing a low latency trading platform. More ❯
london, south east england, united kingdom Hybrid / WFH Options
Opus Recruitment Solutions
Engineers to ensure you have the support to continue to grow as an Engineer. They are looking for both: A Frontend Leaning Full-Stack Engineer & A Backend Leaning Full-Stack Engineer Both roles are MID LEVEL and will be HYBRID (2 days a month) in their London Office … They are looking for Engineers who come with a engineering background using: Java OR Kotlin (on the backend) - MUST HAVE + Spring Boot + Microservices TDD - MUST HAVE (THIS IS VERY IMPORTANT) TypeScript - MUST HAVE Vue OR React on the Frontend AWS OR GCP All hires are FULL-STACK More ❯
london, south east england, united kingdom Hybrid / WFH Options
Opus Recruitment Solutions
A leading company in the Renewable Energy space are on the hunt for a Full-Stack Software Engineer to join their highly skilled engineering team! They are a company who are HUGE on innovation and quality engineering and require an experienced set of hands to join their diverse engineering … excel. They heavily promote a collaborative, open & team orientated culture that promotes innovation and forward thinking! They are looking for a Full-Stack Software Engineer who comes with a engineering background using TypeScript, Vue OR React on the Frontend & Kotlin OR Java on the backend. Experience working within More ❯
Leigh, south east england, united kingdom Hybrid / WFH Options
Areti Group | B Corp™
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 … Software Engineers to join them. 🌳£55-75k (depending on experience) 🌳Fully remote 🌳Benefits package 🌳Key requirements:🌳 · Over 4 years of experience working with Java, React, Javascript · Experience using Cloud-based architecture, AWS or Azure · DevOps Automated Tools, Jenkins, Docker, OpenShift or Kubernetes · Experience using SQL, MongoDB or Elasticsearch More ❯
london, south east england, united kingdom Hybrid / WFH Options
Areti Group | B Corp™
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 … Software Engineers to join them. 🌳£55-75k (depending on experience) 🌳Fully remote 🌳Benefits package 🌳Key requirements:🌳 · Over 4 years of experience working with Java, React, Javascript · Experience using Cloud-based architecture, AWS or Azure · DevOps Automated Tools, Jenkins, Docker, OpenShift or Kubernetes · Experience using SQL, MongoDB or Elasticsearch More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Areti Group | B Corp™
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 … Software Engineers to join them. 🌳£55-75k (depending on experience) 🌳Fully remote 🌳Benefits package 🌳Key requirements:🌳 · Over 4 years of experience working with Java, React, Javascript · Experience using Cloud-based architecture, AWS or Azure · DevOps Automated Tools, Jenkins, Docker, OpenShift or Kubernetes · Experience using SQL, MongoDB or Elasticsearch More ❯
london (west end), south east england, united kingdom Hybrid / WFH Options
Areti Group | B Corp™
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 … Software Engineers to join them. 🌳£55-75k (depending on experience) 🌳Fully remote 🌳Benefits package 🌳Key requirements:🌳 · Over 4 years of experience working with Java, React, Javascript · Experience using Cloud-based architecture, AWS or Azure · DevOps Automated Tools, Jenkins, Docker, OpenShift or Kubernetes · Experience using SQL, MongoDB or Elasticsearch More ❯
Southampton, Hampshire, South East, United Kingdom Hybrid / WFH Options
Sparta Global Limited
on our clients' projects. What we're looking for. To be successful for this role you will demonstrate a level of ability in C#, Java or similar. You will be passionate about technology and eager to learn programme development to an advanced level. We're seeking candidates who can More ❯