Backend Developer

Midis Group

Job Title
Backend Developer
Job Scope
As a Full-Stack Backend Developer, you will be responsible for designing, developing, and maintaining scalable, high-performance backend systems and APIs. You will work primarily with Node.js and NestJS , building robust services and integrations, while leveraging .NET experience as an added advantage for enterprise and legacy system integration. You will collaborate closely with frontend developers, architects, DevOps engineers, and business stakeholders to deliver secure, reliable, and high-quality software solutions.
Main Duties and Responsibilities
• Backend Application Development
• Design, develop, and maintain backend services using Node.js and NestJS .
• Build modular, scalable, and maintainable server-side architectures.
• API Development
• Design, implement, and maintain RESTful APIs (and GraphQL where applicable).
• Ensure APIs are secure, performant, well-documented, and versioned.
• Database Design & Integration
• Design and optimize relational and/or NoSQL databases.
• Write efficient queries, indexes, and migrations.
• Ensure data consistency, integrity, and performance.
• Performance Optimization
• Identify performance bottlenecks in APIs, database queries, and services.
• Apply caching, async processing, and other optimization techniques.
• .NET Integration (Plus)
• Contribute to or integrate with existing .NET / ASP.NET Core services.
• Support hybrid environments where Node.js and .NET systems coexist.
• Security Implementation
• Implement authentication and authorization mechanisms (JWT, OAuth, RBAC).
• Apply security best practices to protect APIs, data, and infrastructure.
• Testing & Quality Assurance
• Write unit, integration, and API tests to ensure reliability and stability.
• Participate in automated testing and quality improvement initiatives.
• Debugging & Troubleshooting
• Diagnose and resolve application, API, and database issues.
• Support production issues and perform root-cause analysis.
• Version Control & CI/CD
• Work with version control systems (Git, Azure DevOps, GitHub).
• Contribute to CI/CD pipelines and automated deployments.
• Code Reviews & Standards
• Participate in peer code reviews to maintain high coding standards.
• Ensure adherence to best practices and architectural guidelines.
• Documentation
• Maintain clear technical documentation for APIs, services, and system designs.
• Collaboration
• Work closely with frontend developers (e.g., React), architects, DevOps, QA, and business teams to deliver end-to-end solutions.
Position Requirements
• Bachelor s degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience).
• Proven experience developing backend systems using Node.js and NestJS .
• Strong understanding of RESTful API design and backend architecture.
• Solid experience with database design and SQL (PostgreSQL, SQL Server, MySQL, etc.).
• Strong knowledge of asynchronous programming , event-driven architectures, and scalability concepts.
• Good understanding of object-oriented and/or modular programming principles .
• Experience with frontend integration (React or similar) from a backend perspective.
• Strong problem-solving skills and attention to detail.
• Excellent communication and teamwork skills.
Education
Bachelor s degree in Computer Science or equivalent
Experience
At least 2 years of relevant experience