Hybrid Backend Developer

at EXL

• Job title: Backend Developer
• Job type: Full Time
• Experience level: Mid level, Senior
• Salary: Not specified
• Degree requirement: Bachelor's Degree
• Tech skills: Azure, Cloud, GraphQL, Java, JavaScript, MS SQL Server, Node.js, Python, SQL, TypeScript
• Location requirements: Hybrid, India

About the role

• Backend Developer designing and building secure backend services on Microsoft Azure. Collaborating on API development, data modeling, and serverless architecture with Azure Functions.

Responsibilities

• Design logical and physical data models, schema migrations, indexing strategies, and performance tuning for SQL workloads.
• Partner with stakeholders to translate requirements into maintainable database structures and data contracts.
• Build clean, well-documented RESTful APIs (and/or GraphQL where appropriate) with consistent patterns, versioning, and error handling.
• Develop and operate Azure Functions (HTTP-triggered and event-based) for core backend workloads and integrations.
• Integrate backend services with Microsoft SQL Server deployed on Microsoft Fabric, ensuring reliable connectivity, security, and performance.
• Implement authentication & authorization using industry best practices (e.g., OAuth2/OIDC, JWT, RBAC/ABAC concepts), aligned with Microsoft identity patterns.
• Implement API metering, quota/rate-limiting patterns, usage aggregation, and reporting.
• Write automated tests (unit/integration), establish CI/CD pipelines, and support releases across environments.

Requirements

• Strong backend experience with JavaScript/TypeScript (preferred), including production API development.
• Experience with common frameworks/tooling (e.g., Node.js, Express/Fastify/NestJS) is beneficial.
• Strong experience with Java or Python backend development (especially for APIs and cloud services).
• Proven ability to design and build production-grade REST APIs, including:
• - Versioning strategies, input validation, error models, pagination/filtering patterns
• - API documentation using OpenAPI/Swagger
• Strong fundamentals in relational data modeling and SQL:
• - Schema design, indexes, constraints, transactions, query tuning
• Hands-on experience building and operating Azure Functions (or equivalent serverless):
• - Deployment, configuration, observability, scaling/cost awareness
• Experience integrating with Microsoft SQL Server, ideally in a cloud-hosted setup; familiarity with Microsoft Fabric integration is a plus.
• Strong understanding of authentication & authorization:
• - OAuth2/OIDC, JWT, claims/roles, least privilege, secure secrets management
• Experience implementing API metering/usage tracking concepts:
• - Rate limiting, quotas, tenant-level usage aggregation, auditability
• Practical experience with CI/CD, automated testing, and building services that are reliable in production (monitoring, alerting, incident-friendly design).

Benefits

• Health insurance
• Flexible working hours
• Remote work options