Senior Software Engineer

Quintype Technologies Inc.; Bengaluru; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Quintype Technologies Inc. in Bengaluru seeks an experienced C# Backend Developer to build scalable, high‑performance services, design robust APIs, and optimize data‑intensive workflows.

You will work with SQL Server / PostgreSQL, implement EF/Dapper, participate in code reviews, ensure test coverage, and run CI/CD pipelines. If you enjoy solving complex problems and delivering reliable backend systems, apply now.

Qualifications

• 4–6 years of professional backend development experience with C# and .NET (Core / Framework).
• Strong command over SQL—complex queries, joins, subqueries, CTEs, window functions, stored procedures, triggers.
• Relational databases such as SQL Server, PostgreSQL, or MySQL.
• Proven experience in query optimization, indexing, and diagnosing performance bottlenecks.
• Experience building and consuming RESTful APIs.
• Good understanding of OOP principles and design patterns.
• Familiarity with Entity Framework / Dapper or other ORM tools.
• Experience with version control systems (Git).
• Understanding of software development best practices—unit testing, code reviews, CI/CD.
• Strong debugging and problem‑solving skills.

Responsibilities

• Design, develop, and maintain backend services and RESTful APIs using C# / .NET (Core/Framework).
• Write efficient, optimized SQL queries, stored procedures, views, and functions for data retrieval and reporting.
• Analyze and improve performance of SQL queries and database schemas (indexing, query plans, normalization).
• Collaborate with product managers, frontend developers, and QA to translate requirements into scalable solutions.
• Design and implement database schemas and ensure data integrity across systems.
• Debug, troubleshoot, and resolve production issues related to backend services and data layers.
• Participate in code reviews, architecture discussions, and technical design decisions.
• Write unit and integration tests to ensure code quality and reliability.
• Work with CI/CD pipelines to support smooth deployment processes.
• Document technical designs, APIs, and database structures.

Skills

C# / .NET

SQL

RESTful APIs

OOP

Git

Unit testing

CI/CD

ORMs EF/Dapper

Debugging

Cloud: Azure/AWS

Tools

Entity Framework

Dapper

SQL Server

PostgreSQL

MySQL

Docker

Kubernetes

RabbitMQ

Kafka

Azure

AWS

Job description

We are looking for an experienced C# Backend Developer with of hands‑on experience building and maintaining scalable, high-performance backend systems. The ideal candidate has strong expertise in .NET/C# development and is highly proficient in writing, optimizing, and troubleshooting complex SQL queries. You will work closely with cross‑functional teams to design robust APIs, manage data‑intensive workflows, and ensure the reliability and performance of backend services. This role is with the services team based in Bangalore.

Key Responsibilities:

• Design, develop, and maintain backend services and RESTful APIs using C# / .NET (Core/Framework).
• Write efficient, optimized, and maintainable SQL queries, stored procedures, views, and functions for data retrieval, transformation, and reporting.
• Analyze and improve the performance of existing SQL queries and database schemas (indexing, query plans, normalization).
• Collaborate with product managers, frontend developers, and QA to translate business requirements into scalable technical solutions.
• Design and implement database schemas, and ensure data integrity across systems.
• Debug, troubleshoot, and resolve production issues related to backend services and data layers.
• Participate in code reviews, architecture discussions, and technical design decisions.
• Write unit and integration tests to ensure code quality and reliability.
• Work with CI/CD pipelines to support smooth deployment processes.
• Document technical designs, APIs, and database structures.

Required Skills & Qualifications:

• 4–6 years of professional experience in backend development using C# and .NET (Core / Framework).
• Strong command over SQL - writing complex queries, joins, subqueries, CTEs, window functions, stored procedures, and triggers.
• Solid experience working with relational databases such as SQL Server, PostgreSQL, or MySQL.
• Proven experience in query optimization, indexing strategies, and diagnosing performance bottlenecks.
• Experience building and consuming RESTful APIs.
• Good understanding of Object‑Oriented Programming (OOP) principles and design patterns.
• Familiarity with Entity Framework / Dapper or other ORM tools.
• Experience with version control systems (Git).
• Understanding of software development best practices- unit testing, code reviews, CI/CD.
• Strong debugging and problem‑solving skills.

Good to Have:

• Experience with cloud platforms (Azure / AWS).
• Exposure to microservices architecture.
• Familiarity with message queues (RabbitMQ, Kafka, Azure Service Bus).
• Experience with containerization tools (Docker, Kubernetes).
• Knowledge of caching mechanisms (Redis).
• Prior experience in Agile/Scrum environments.