APEXX - Senior Backend Engineer - Java/Spring Boot

Description :APEXX is pioneering payment orchestration, transforming the global payments landscape with cutting-edge technology and innovation.As a leader in Fintech, we're committed to excellence, driving forward-thinking solutions that empower businesses worldwide.Are you passionate about building scalable, resilient systems in the fast-moving world of FinTech?Were looking for a Senior Backend Engineer to join our growing technology team.Youll play a key role in designing and building backend services that power our core platform enabling real-time transactions, intelligent routing, and seamless third-party integrations with partners across the financial ecosystem.Youll work with a modern tech stack including Java Spring Boot, PostgreSQL, Redis, AWS Lambda, and a wide range of AWS services and collaborate closely with engineers, product managers, and stakeholders to deliver reliable, high-performance systems.If you thrive in a collaborative, fast-paced environment and enjoy solving complex engineering challenges, this could be a great fit.WHAT YOULL BE DOING :- Design, develop, and maintain backend services (utilising Java Spring Boot), contributing to the evolution of our platform and system architecture.- Optimise backend systems for real-time processing, performance, resilience, and scalability to meet the demands of a growing, enterprise customer base.- Implement integrations with third-party systems, ensuring secure and reliable data exchange across environments.- Participate in the full software delivery lifecycle from requirements gathering to production deployment and ongoing support.- Troubleshoot production issues and contribute to a culture of operational excellence and continuous improvement.- Collaborate closely with product managers, designers, and fellow engineers to ensure technical solutions align with business objectives.- Provide high-quality code reviews and mentor junior engineers where appropriate.- Contribute to infrastructure and DevOps best practices, including CI/CD pipelines and containerised deployments.ABOUT YOU :- Proven experience designing and delivering robust backend systems, with a strong focus on scalability, maintainability, and performance.- Deep understanding of relational databases, including hands-on experience with PostgreSQL, and confidence in writing optimised SQL.- Practical experience with AWS services, such as Lambda, API Gateway, ECS, and S3, and an appreciation of serverless and event-driven architectures.- Familiarity with DevOps practices, including CI/CD pipelines, containerisation, and infrastructure-as-code.- Strong problem-solving skills and a structured, delivery-oriented mindset.- Comfortable working cross-functionally in fast-paced Agile environments, with clear communication and a collaborative approach.- Passionate about clean code, continuous learning, and building systems that are resilient and easy to operate at scale.NICE TO HAVE :- Experience working in a FinTech or start-up environment.- Exposure to observability tools- Familiarity with security and authentication patterns (OAuth, SAML, etc.)Perks and Benefits :Aside from the opportunity to work for a tech-scale up, having great responsibility and varied tasks every day, other benefits includes:Health :- Insurance (Employee, spouse, and two children) optional cover for parentsTime Off :- 15 personal days per year + Festival holidays.- You can also take your birthday off as paid leave, and we offer a paid day off for any charity work you want to participate in.Enrichment :- Learning and development training, with a yearly budget, to strengthen your career and progression, leadership in house training and monthly lunch and learn, where you eat lunch and learn with our guest presenter.Social :- Monthly team outings & incentives.- Some of our recent ones include- Hackathon, Lunch and Learns and team building games (ref:hirist.tech)