Senior Back-end Developer (Nigeria)

Job Summary : We are looking for a highly skilled Senior Backend Developer with expertise in Ruby on Rails to design, develop, and maintain efficient, scalable backend systems.

In this role, you will collaborate with front-end developers, build and optimize APIs (RESTful / GraphQL), and enhance overall system architecture to support a legacy site.

You will also be responsible for ensuring database integrity, debugging applications, and working with cloud services like AWS or Heroku.

Core Tasks : Design, develop, and maintain scalable / efficient backend systems using Ruby on Rails Collaborate with front-end devs to integrate user-facing elements with server-side logic Build and maintain APIs (RESTful / GraphQL) to support front-end functionality Manage and optimize database performance, ensuring data integrity and security Develop solutions for improving the overall system architecture to support the legacy site Implement best practices for backend performance, including caching & load balancing Troubleshoot and debug applications to ensure seamless functionality and uptime Work with cloud services (e.g., AWS, Heroku) to deploy and maintain applications Assist with backend integrations for third-party services and payment gateways Must Haves : 5-7+ years of experience as a Backend Developer, with a strong focus on Ruby Experience managing a team of developers to deliver large projects Experience designing and developing RESTful APIs or GraphQL services Proficiency with relational databases (e.g., PostgreSQL, MySQL) Knowledge of version control systems (e.g., Git or similar tool) Familiarity with cloud services such as AWS, Heroku, or similar platforms Strong written and verbal English communication skills Ability to work EST Nice to Have : Experience building tech for the travel and tourism industry Experience with front-end technologies like Next.js, React, or similar frameworks Knowledge of cybersecurity best practices Powered by JazzHR