About Us: Payall Payment Systems is a dynamic and rapidly growing fintech startup focused on revolutionizing cross-border payments. Our mission is to provide seamless, secure, and innovative payment solutions for businesses worldwide. As we continue to scale, we are seeking a talented Senior Back-End Engineer to help build and maintain scalable, high-performance systems that power our products. Position Overview: As a Senior Back-End Engineer, you will play a critical role in designing, developing, and maintaining the core backend systems that drive our platform. You will collaborate closely with cross-functional teams to develop innovative solutions, ensure system reliability, and support business growth. This role requires a hands-on developer who thrives in a fast-paced startup environment. You will be expected to take full ownership of delivery of new functionality or removal of defects all the way through the development process. Key Responsibilities: - Architect, implement and deploy high-performance, multi-tenant services; - Integrate with 3rd party services; - Perform code reviews to ensure code quality, maintainability, and adherence to best practices; - Write unit, functional and integration tests covering your code: - Work closely with product managers, designers, and QA to deliver top-notch products: - Involve in full software development lifecycle from concept to deployment, including maintenance; - Contribute to CI/CD pipelines and optimize workflows for better efficiency; - Create quality technical documentation to support the engineering and product teams; - Implement and enforce secure coding standards to safeguard against security vulnerabilities; - Actively participate in SCRUM rituals; - Participate in product planning and roadmap discussions; - Guide and mentor junior engineers, helping them to up their game; - Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review; - Document software designs decisions, APIs, and processes to support knowledge sharing and maintain technical clarity; - Maintain publicly facing API documentation; - Provide ongoing support and maintenance for existing applications, including bug fixes and performance enhancements. Qualifications: - 5+ years of hands-on experience designing, developing, and maintaining server-side applications using Java and/or Kotlin. - Proven experience building and owning material components of large-scale financial systems, payment platforms, banking systems, or other mission-critical applications. - Demonstrated experience designing and operating distributed systems, including understanding of scalability, reliability, fault tolerance, and performance optimization. - Strong experience with data modeling, database architecture, and working with large-scale datasets and high-volume transactional data. - Practical experience leveraging Artificial Intelligence (AI) tools and technologies within software development workflows, including improving engineering productivity, code quality, automation, or system capabilities. - Proven ability to take end-to-end ownership of complex engineering initiatives, from architecture and design through implementation, deployment, and ongoing maintenance. - Experience designing and developing microservices-based architectures and high-availability, low-latency systems. - Strong proficiency with Java and/or Kotlin, including Spring Framework (Spring Boot, Spring MVC). - Solid understanding of software architecture principles, design patterns, and engineering best practices. - Experience implementing secure software solutions with a strong security-oriented mindset, particularly in environments handling sensitive financial or transactional data. - Experience working with cloud platforms such as AWS or GCP. - Experience with CI/CD pipelines, infrastructure automation, and modern software delivery practices. - Proficiency with version control systems, particularly Git. - Experience writing comprehensive unit, functional, and integration tests. - Experience creating and maintaining technical documentation, API documentation, and software design specifications. - Previous experience mentoring engineers, providing technical guidance, conducting code reviews, and helping improve engineering practices across a team. - Strong problem-solving and analytical skills with the ability to operate effectively in a fast-paced startup environment. - Excellent communication and collaboration skills, with the ability to work cross-functionally with Product, QA, Compliance, and other business teams.

Senior Back-End Engineer

similar openings