Senior Backend Engineer (Java)

This is Adyen Adyen provides payments, data, and financial products in a single solution for customers like Meta, Uber, H&M, and Microsoft - making us the financial technology platform of choice. At Adyen, everything we do is engineered for ambition.  For our teams, we create an environment with opportunities for our people to succeed, backed by the culture and support to ensure they are enabled to truly own their careers. We are motivated individuals who tackle unique technical challenges at scale and solve them as a team. Together, we deliver innovative and ethical solutions that help businesses achieve their ambitions faster. About the Team The Payment Gateways team (used to be known as IPP Payments Backend) is a critical pillar of Adyen’s Core Payments solution. The Core Payments group handles the foundational business logic, diverse payment flows, and global features that empower Adyen’s merchants worldwide. As part of the Payment Gateways team, you will design and build the infrastructure powering Adyen’s in-store payment experience. This means engineering systems capable of handling massive, simultaneous global traffic while maintaining rock-solid reliability for thousands of physical terminals, mobile devices, and merchant hosts. What You Will Do As a Backend Engineer (Java), you will orchestrate complex payment flows by integrating multiple Adyen systems and defining the unified architecture for our next-generation payment features. * Design & Deliver: Build, test, and deploy high-volume, low-latency Java applications that form the backbone of our global payment systems. * Architect for Scale: Collaborate across Data and Platform engineering teams to design highly resilient, scalable services with reliability at their core. * Own the Technical Lifecycle: Drive engineering best practices, contribute to scalable architecture designs, and actively participate in product roadmap discussions. * Data-Driven Optimization: Define, implement, and monitor performance KPIs to proactively identify and eliminate system bottlenecks. * Collaborate Globally: Partner cross-functionally with global product managers and engineers, occasionally collaborating directly with merchants to understand how businesses consume your solutions. Who You Are * Senior Java Developer: You have 8+ years of hands-on experience delivering high-impact backend services using Core Java, web services, and SQL/PostgreSQL, with a proven track record of technical leadership and mentoring junior engineers. * Scalability: High availability, fault tolerance, and low latency aren't afterthoughts for you—they are non-negotiable architectural prerequisites. * API Expert: You possess a strong understanding of modern API frameworks (such as REST and OpenAPI), alongside best practices for API security and developer experience. * Curious & Forward-Thinking: You actively evaluate emerging technologies and alternatives, confidently presenting your findings during architectural reviews. * Collaborative Communicator: You know how to get things done by actively seeking out diverse perspectives and bringing people together to solve complex problems. * Customer-Centric: You balance deep technical rigor with genuine Customer Empathy, always keeping the end-merchant's business success in mind. Our Diversity, Equity and Inclusion commitments  Our unique approach is a product of our diverse perspectives. This diversity of backgrounds and cultures is essential in helping us maintain our momentum. Our business and technical challenges are unique, and we need as many different voices as possible to join us in solving them - voices like yours. No matter who you are or where you’re from, we welcome you to be your true self at Adyen.  Studies show that women and members of underrepresented communities apply for jobs only if they meet 100% of the qualifications. Does this sound like you? If so, Adyen encourages you to reconsider and apply. We look forward to your application! What’s next? Ensuring a smooth and enjoyable candidate experience is critical for us. We aim to get back to you regarding your application within 5 business days. Our interview process tends to take about 4 weeks to complete, but may fluctuate depending on the role. Learn more about our hiring process here. Don’t be afraid to let us know if you need more flexibility. Adyen is an equal opportunity employer. We do not discriminate based on race, color, ethnicity, ancestry, national origin, religion, sex, gender, gender identity, gender expression, sexual orientation, age, disability, veteran status, genetic information, marital status or any legally protected status. All your information will be kept confidential according to EEO guidelines.   This role is based out of our Bengaluru office. We are an office-first company and value in-person collaboration; we do not offer remote-only roles.

Who we are Moniepoint Inc. is Africa’s all-in-one financial platform, helping 20 million businesses and individuals access seamless payments, banking, credit, cross-border, and business management tools each month.  As Nigeria’s largest merchant acquirer, we power most of the country’s point-of-sale (POS) transactions. Through our subsidiaries, Moniepoint Inc. processes over $250 billion in digital payment transaction value annually. About the role Engineering at Moniepoint is an inspired, customer-focused community, dedicated to crafting solutions that redefine our industry. Our infrastructure runs on some of the cool tools that excite infrastructure engineers - kubernetes, docker etc.  We also make business decisions based on the large stream of data we receive daily, so we work daily with big data, perform data analytics and build models to make sense of the noise and give our customers the best experience.  Curious about what makes Moniepoint an incredible place to work? Check out posts on how we cultivate a culture of innovation, teamwork, and growth. What You'll Be Doing * Collaborate with cross-functional teams (product, design, QA) to define, design, and ship high-impact features. * Design scalable architecture and implement performant backend services using Java and Spring Boot. * Write clean, maintainable, and well-documented code with a strong focus on reliability and testability. * Integrate third-party services and APIs while ensuring robust error handling and graceful degradation. * Continuously improve system performance and developer experience through automation and refactoring. * Debug complex issues across the stack and proactively identify opportunities for technical improvement. * Participate in code reviews, architecture discussions, and share best practices with the team. * Document technical decisions, systems, and processes for future team reference and transparency. What We're Looking For * BS/MS in Computer Science, Engineering, or a related technical field. * At least 5+ years of professional experience in software engineering, with a strong focus on backend systems. * Expertise in Java and Spring Boot; solid understanding of modern backend architecture and best practices. * Experience building and scaling web services, APIs, and distributed systems. * Familiarity with Agile development methodologies and CI/CD pipelines. * Proficient with relational databases and ORM frameworks (e.g., Hibernate). * Exposure to frontend frameworks like AngularJS or React is a plus. * Strong debugging skills and a methodical approach to problem-solving. * Excellent communication skills and a team-first attitude. Our Tech Stack As part of our engineering team, you’ll work with modern technologies and tools that enable us to build scalable, reliable, and high-performing systems. Some of the technologies you’ll be hands-on with include * Java (latest versions): Powering our core backend systems with a focus on performance and maintainability. * Spring & Spring Boot: Building modular, production-grade microservices with robust dependency management. * Docker & Kubernetes: Containerized deployments and orchestration for consistent, scalable environments across dev, staging, and production. * PostgreSQL & DynamoDB: A combination of relational and NoSQL databases to handle structured data and dynamic scaling needs. * Elasticsearch: For fast, flexible full-text search and analytics across large datasets. * AWS Cloud Infrastructure: Deploying and managing microservices using a cloud-native architecture that supports global scalability. What we can offer you * Culture - We put our people first and prioritize the well-being of every team member. We’ve built a company where all opinions carry weight and where all voices are heard. We value and respect each other and always look out for one another. Above all, we are human. * Learning - We have a learning and development-focused environment with an emphasis on knowledge sharing, training, and regular internal technical talks. * Compensation - You’ll receive an attractive salary, pension, health insurance, paid leave plus other benefits. What to expect in the hiring process Our interview process is designed to be thoughtful, transparent, and candidate-friendly, allowing you to showcase your strengths while getting to know us better: * Initial Conversation: A brief introductory call with our recruiter to learn more about your background, career goals, and to share insights about the role and our team. * Technical Assessment: A practical, take-home coding exercise that reflects real-world challenges. You'll have ample time to complete this in your own environment * Deep Dive Technical Interview: A focused session with our Engineering Team, where we'll explore system design, architecture, and problem-solving approaches. * Final Interview: A combined technical and behavioural conversation with a member of our Executive Team, aimed at understanding your alignment with our values, vision, and culture Moniepoint is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees and candidates.