Senior Back-End Engineer

About the role

Payall Payment Systems is a fast‑growing fintech startup focused on cross‑border payments. As a Senior Back‑End Engineer you will design, develop and maintain the core services that power our platform, taking full ownership from concept through production.

Key responsibilities

• Architect, implement and deploy high‑performance, multi‑tenant back‑end services.
• Integrate with third‑party APIs and ensure reliable, secure data exchange.
• Write comprehensive unit, functional and integration tests and conduct code reviews.
• Participate in the full software development lifecycle, including CI/CD pipeline contributions and production support.
• Mentor junior engineers and promote best practices across the team.

Required profile

• 5+ years of hands‑on experience building server‑side applications with Java and/or Kotlin.
• Proven track record delivering large‑scale financial or payment systems.
• Deep understanding of distributed systems, scalability, fault tolerance and performance optimisation.
• Experience with cloud platforms (AWS or GCP) and modern DevOps practices.
• Strong problem‑solving abilities and ability to work in a fast‑paced startup environment.

Required skills

• Java
• Kotlin
• Spring Framework (Spring Boot, Spring MVC)
• Microservices architecture
• Distributed systems design
• Data modelling and database design
• AWS or GCP cloud services
• CI/CD pipelines
• Git version control
• Unit, functional and integration testing
• API documentation
• Secure coding practices
• Artificial Intelligence tools for development productivity