Staff Engineer (Swagger,Telecommunications)

👋🏼We're Nagarro, we are a Digital Product Engineering company that is scaling in a big way! We build products, services, and experiences that inspire, excite, and delight. We work at scale across all devices and digital mediums, and our people exist everywhere in the world (17500+ experts across 36 countries, to be exact). Our work culture is dynamic and non-hierarchical. We are looking for great new colleagues. That is where you come in! 

REQUIREMENTS: 

• Experience : 5.5+ Years
• Bachelor’s degree in Computer Science, Software Engineering, or related field.
• 5+ years of backend/API development experience, preferably in telecom or digital services.
• Strong experience with Java (Spring Boot, Quarkus), Node.js, or similar frameworks.
• Proficiency in RESTful APIs, TMF standards, GraphQL, and API Gateway solutions.
• Hands-on experience with OAuth2, JWT, encryption, and secure API practices.
• Experience with microservices architecture, Docker/Kubernetes, and cloud platforms (AWS/Azure).
• Strong knowledge of CI/CD pipelines, Git, Swagger/OpenAPI, Postman, and automated testing frameworks.
• Solid coding, debugging, and database integration skills.
• Strong understanding of telecom business feature enablement.
• Experience working in Agile environments and API lifecycle management.

RESPONSIBILITIES: 

• Design and implement RESTful and GraphQL APIs supporting MTN One Mobile features (recharge, bundle purchase, MoMo transactions, account management).
• Integrate APIs with internal systems (billing, CRM, identity, catalog) and external partners.
• Translate business requirements into technical specifications in collaboration with product and architecture teams.
• Develop secure, high-performance APIs aligned with MTN’s digital roadmap.
• Apply secure coding practices and conduct vulnerability assessments.
• Develop and maintain unit, integration, and performance tests.
• Support CI/CD pipelines and automated deployments.
• Maintain API documentation (Swagger/OpenAPI) and version control.
• Implement observability (logging, metrics, tracing) and optimize API scalability.
• Ensure compliance with enterprise architecture and governance standards.

Bachelor’s or master’s degree in computer science, Information Technology, or a related field.