The Role We are EC Markets, a leading FCA-regulated trading brokerage company. We are looking for a talented and enthusiastic Full-stack Java Developer to join a growing team of experienced technologists and finance professionals and build a brand-new trading system in Java and React Native, with opportunities for technical ownership from day one. Please note that this role is office-based (Finsbury Square, Monday to Friday). Why join us? Greenfield project: No legacy systems or tech debt. Direct Impact: As you work on the mission-critical flagship product, your contribution will shape the company's future. Opportunity for growth: Join early and grow into a team lead as the team expands. Unique start-up culture while being part of a well-established and reputable group. Embrace AI: We are strong believers in AI applications in Finance and are constantly looking for innovative ideas while remaining compliant and aware of risks. Key Responsibilities Develop, design, and maintain high-quality, scalable, and secure trading applications Write clean, scalable, testable, and maintainable code Implement APIs and seamlessly integrate third-party services Actively contribute to code reviews Support deployment and release processes and troubleshoot production issues Skills and Qualifications Required Qualifications: Bachelor’s degree in computer science, Information Systems, or related technical degree. A minimum of 5-8 years of experience in application development. Strong Java / Spring / SpringBoot skills. Experience in web and/or mobile front-end development and UI implementation (React / React Native). Experience in designing and implementing REST APIs. Experience writing unit/integration tests. Proficient with software development lifecycle (SDLC) methodologies Proficiency in the development environment, including IDE, web & application server, GIT, Jira, unit-testing tools and defect management tools. Additional Preferred Qualifications Cross-platform (web & mobile) development using React Native is a huge plus. Experience in building trading systems, including charting and price streaming. Working knowledge of AWS cloud Experience in DevOps development and deployment using docker and containers. What we offer Competitive salary and performance-based bonus Opportunities for professional growth and career advancement Private healthcare and gym discount Contribution pension scheme All-day snacks and breakfast options A collaborative and innovative work environment We are a fully inclusive and diverse workplace that encourages ownership, respect, and equality as our core values. We move fast and expect transparency and open communication throughout the team. The candidate should be eligible to work in the UK; no visa sponsorship is provided. Start date: ASAP