Sr.-Backend Developer

Letitbex AI

About Letitbex AI

Letitbex AI is a fast-growing AI-driven technology company focused on building intelligent, scalable, and enterprise-grade solutions. We work at the intersection of AI, data engineering, cloud, and business transformation, helping organizations unlock real value from artificial intelligence.

Position: Sr.-Backend Developer

Experience: 8+ Years

Notice Period: Can be considered up 15 Days

Qualification/s

Bachelor’s/master’s degree in computer science, Software Engineering, Information Technology, or a related discipline.

Technical Expertise

Strong hands-on software development experience in Python backend development.

Extensive experience developing REST APIs using FastAPI, Uvicorn, and modern Python ecosystem frameworks.

Strong understanding of microservices, distributed systems, API-first design, and Backend-for-Frontend (BFF) architecture.

Proficiency in Object-Oriented Programming (OOP), SOLID principles, design patterns, and clean code practices.

Solid experience in asynchronous programming, dependency injection, API validation, exception handling, and performance optimization.

Strong knowledge of web application security including OAuth2, JWT, OpenID Connect, SSO, secure coding practices, OWASP principles, and vulnerability remediation.

Strong knowledge in Logging, Monitoring & Troubleshooting – Production support, observability, performance tuning, and root-cause analysis.

Hands-on experience with Git, branch management strategies, pull requests, and collaborative development workflows.

Experience building and maintaining CI/CD pipelines using modern DevOps tools and automated release processes.

Hands-on experience in testing frameworks such as PyTest and automation of units, integration, API, and regression testing.

Experience with SQL /NoSQL databases, data modeling, query optimization, and backend data management.

Strong debugging, analytical, and problem-solving skills with the ability to diagnose issues across applications, infrastructure, and deployment layers.

Experience independently leading technical initiatives and delivering production grade software solutions

Excellent collaboration and communication skills within cross-functional Agile teams.