Senior Software Engineer – Backend

Esyasoft; Bengaluru; On-site; INR 800,000 - 1,400,000; Full time

Job summary

Esyasoft is seeking a backend developer to design and maintain RMS/CRMS modules in Bengaluru. You will build REST APIs, implement business logic, and optimize data access using PostgreSQL and EF Core. Collaboration with frontend teams and focus on secure, scalable code are essential.

The role emphasizes testing, performance tuning, and adherence to coding standards, with opportunities to contribute across the full backend stack.

Qualifications

• 2–3 years of hands-on experience building scalable backend apps and REST APIs.
• Strong knowledge of C# and the .NET/.NET Core stack.
• Hands-on experience with ASP.NET Core Web API and RESTful APIs.
• Experience with PostgreSQL or similar relational databases; SQL proficiency.
• Familiarity with Entity Framework Core; ORM concepts.
• Understanding of dependency injection, middleware, and exception handling in ASP.NET Core.
• Ability to write clean, maintainable, scalable code; good debugging and logging practices.
• Version control with Git; familiarity with code-review processes.
• Knowledge of API security basics and coding standards; experience with Swagger/OpenAPI is a plus.

Responsibilities

• Develop and maintain backend modules for RMS and CRMS applications.
• Design, develop, test, and maintain REST APIs and backend services.
• Implement business logic and data access optimizations.
• Coordinate with frontend teams for API integration and testing.
• Perform unit testing and support integration testing.
• Review existing code for performance and maintainability.
• Ensure security, logging, and error handling best practices.
• Assist deployments and resolve post-deployment issues as needed.

Skills

C#

ASP.NET Core

REST APIs

SQL

Entity Framework Core

DI / Middleware / Exception handling

Git

Swagger/OpenAPI

Postman

LINQ

Tools

PostgreSQL

LINQ

Swagger/OpenAPI

Postman

xUnit

Job description

ROLE

• – Develop and maintain backend modules for RMS and CRMS applications
• – Design, develop, test, and maintain REST APIs and backend services
• – Implement business requirements and application business logic
• – Develop and optimize database queries and data-access operations
• – Troubleshoot application issues and perform bug fixing
• – Coordinate with frontend developers for API integration
• – Participate in requirement analysis and technical discussions
• – Perform unit testing and support integration and functional testing
• – Review and improve existing code for maintainability and performance
• – Follow established coding standards and development best practices
• – Ensure appropriate application security, error handling, logging, and performance
• – Use version-control and code-review processes effectively
• – Support deployment and post-deployment issue resolution when required

REQUIREMENTS

• – 2–3 years of hands‑on experience developing scalable, secure, and maintainable backend applications and REST APIs
• – Strong working knowledge of C# and .NET / .NET Core
• – Hands‑on experience with ASP.NET Core Web API
• – Experience developing and consuming RESTful APIs
• – Understanding of backend application architecture and business logic implementation
• – Working knowledge of PostgreSQL or similar relational databases
• – Good understanding of SQL, including joins, queries, stored functions/procedures, and query optimization
• – Familiarity with Entity Framework Core / ORM concepts
• – Understanding of dependency injection, configuration, middleware, and exception handling in ASP.NET Core
• – Ability to write clean, reusable, maintainable, and scalable code
• – Understanding of application debugging, logging, and performance optimization
• – Working knowledge of Git or similar version‑control systems
• – Basic understanding of API security, authentication, and authorization
• – Familiarity with coding standards and code‑review practices
• – Preferred: Experience with Entity Framework Core
• – Preferred: Knowledge of LINQ
• – Preferred: Understanding of layered architecture such as Controller → Service → Repository
• – Preferred: Experience with Swagger / OpenAPI
• – Preferred: Familiarity with Postman or similar API testing tools
• – Preferred: Familiarity with unit‑testing frameworks such as x