Senior Java Backend Developer
We’re a FinTech company reinventing high-risk-market payments with an integrated digital identity layer. Our team is expanding, and we are looking for a highly experienced Senior Java Backend Developer to join our team and help us with the designing, developing and maintaining high performance backend services, APIs, and database systems that power mission-critical applications. This role requires deep expertise in Java, modern backend architecture, scalable APIs, and relational databases.
Key Responsibilities:
• Design, develop, and maintain robust, scalable backend services using Java.
• Build and enhance RESTful APIs consumed by internal and external applications.
• Lead database design, optimization, and query performance tuning (PostgreSQL, MongoDB, etc.).
• Write clean, testable, and maintainable code; participate in code reviews.
• Troubleshoot, debug, and resolve production issues with a strong focus on reliability and performance.
• Collaborate with cross-functional teams including Frontend, DevOps, and Product to deliver high-quality features.
• Contribute to architectural decisions and best practices.
Key Requirements:
• 5+ years of professional experience in backend development using Java.
• Hands-on experience of REST APIs design and development.
• Proven experience with relational and document databases (e.g., PostgreSQL, MongoDB) and SQL performance tuning.
• Solid understanding of software engineering principles and best practices.
• Excellent problem-solving skills and ability to work independently and in a remote setting
• Strong communication skills in English.
• Timezone (GMT +1/-1).
What would differentiate you:
• Experience with Spring Boot or similar frameworks.
• Knowledge of message queues (RabbitMQ, SQS).
• Familiarity with cloud-native architectures and containerization (e.g., Docker, Kubernetes).
• Familiarity with microservices architecture.
• Experience with automated testing and test frameworks.
What we offer:
• Competitive base salary
• 100% remote working model & flexible hours
• Chance to work on key business functions where your contributions will have real impact
If the above sounds a lot like you, please send your CV to job@tantumpay.com. Only shortlisted candidates will be contacted.