.Net Core API Software Engineer

Overview

About Brainsquare India

Brainsquare India is part of Brainsquare Belgium, delivering high-quality engineering and integration expertise to European clients. You will join a growing offshore engineering unit working closely with senior architects and technical leads across Belgium and India.

• Net Core API Software Engineer Your mission Brainsquare India is expanding its Application Development team and we are looking for a skilled .NET Core API Software Engineer to work on modern API-driven solutions for large-scale enterprise environments. You will design, build, test, and maintain high-quality backend services using .NET Core, REST APIs, CI/CD practices, and cloud deployment pipelines (Azure).

This role is part of ongoing long-term projects with European clients and requires strong engineering fundamentals, clean coding discipline and the ability to work in Agile delivery teams.

Key responsibilities

• Build clean, scalable REST APIs using .NET Core and modern software engineering practices.
• Implement backend logic, data access, integration flows, and API security patterns.
• Contribute to CI/CD pipelines, version control workflows (Git), and code reviews.
• Collaborate with architects, testers, and offshore/onshore teams in an Agile setup (Scrum ceremonies, backlog refinement, sprint planning).
• Apply structured logging, tracing concepts, and implement automated tests (unit, integration where applicable).
• Work with containerized environments (Docker/Kubernetes) for deployment.
• Support production deployments, troubleshooting, and continuous improvement initiatives.

Experience Level

5+ years of relevant professional experience in .NET backend/API development.

Core Skills

Backend Engineering:

• Strong experience with C# and .NET Core for backend/API development
• Proven experience building RESTful APIs (CORS, API versioning, API security)
• Solid understanding of software engineering principles (clean code, SOLID, DI)

Testing & Quality:

• Experience with unit testing frameworks (xUnit/NUnit/MSTest)
• Understanding of integration testing concepts

Cloud & DevOps:

• Basic familiarity with Azure services
• CI/CD experience (Azure DevOps, GitHub Actions, or similar)
• Git proficiency (status, pull, push, merge, branching)

Data & Persistence:

• SQL Server (queries, joins, indexing basics)
• Data modelling fundamentals

Agile Delivery:

• Experience working in a Scrum or Agile team setup

Nice-to-Have Skills

Advanced Backend Concepts:

• Domain Driven Design (DDD) basics
• Aggregate roots, bounded contexts
• API versioning strategies
• Outbox Pattern

Cloud, Messaging & Distributed Systems:

• Azure Functions / Azure Serverless
• Redis caching
• Service Bus (Azure)
• Event-driven architecture concepts

Testing Maturity:

• Integration testing with TestContainers
• Fluent Assertions
• Contract testing

DevOps & Tooling:

• Docker image building
• Kubernetes deployment concepts
• Tracing, correlation IDs
• ELK stack or similar logging pipelines

Other technologies:

• Marten DB
• NoSQL stores
• Jira / Confluence experience
• Experience working with external QA teams

What You Bring

• Strong ownership mindset and the ability to work independently in a distributed team.
• Clear communication skills in English (written & spoken).
• Ability to break down complex technical problems and propose structured solutions.
• Eagerness to learn modern engineering concepts beyond basic API development.

Ready to Apply?

If you’re passionate about building clean, scalable APIs with .NET Core and want to grow your expertise in cloud-native engineering, we’d love to hear from you.

Apply now and join Brainsquare India’s evolving backend engineering team!

Experience level: Senior