API Engineer

Lancesoft; Bengaluru; Hybrid; INR 1,400,000 - 1,900,000; Full time

Job summary

Lancesoft in Bengaluru is seeking a Senior .NET Backend Developer to design, build, and optimize enterprise-grade REST APIs. You will focus on secure, high-performance services using the modern .NET ecosystem, integrating them with legacy systems and maintaining robust data pipelines.

The role is a full-time, long-term contract with hybrid work in Bengaluru, requiring 8+ years of experience and strong backend expertise across C#, .NET 8+, EF Core, and security standards.

Qualifications

• 8+ years of backend development experience.
• Proficiency in C# and .NET 8+.
• Experience building REST APIs and integrating with legacy systems.
• Strong knowledge of API security practices.

Responsibilities

• Design and implement scalable REST APIs.
• Ensure security, performance, and logging.
• Integrate with MariaDB/MySQL and legacy services.
• Maintain data pipelines.

Skills

C#

.NET 8+

Minimal APIs

API security

JWT/OIDC

Performance tuning

Tools

EF Core

Dapper.AOT

MariaDB

MySQL

OpenAPI/Swagger

GitLab CI/CD

Containerization

Job description

API Engineer Senior .NET

Experience: 8+ years

Location: Bengaluru (Hybrid)

Fulltime - Contractual (Long term)

Role Overview

We are looking for a Senior .NET Backend Developer to design, build, and optimize enterprise-grade REST APIs. You will focus on building secure, high-performance web services using the modern .NET ecosystem, integrating them with legacy systems, and maintaining robust data pipelines.

Key Responsibilities

• API Development: Design and build scalable REST APIs using C#, .NET 8+, ASP.NET Core Minimal APIs, and NativeAOT, documenting them with OpenAPI/Swagger.
• Security & Performance: Implement robust API security protocols, validation, caching, structured logging, exception handling, and continuous performance tuning.
• Database & Legacy Integration: Manage data access via EF Core and Dapper.AOT with MariaDB/MySQL, ensuring seamless integration with existing legacy services.

Qualifications & Tech Stack

• Core Tech: Hands-on experience with C#, .NET 8+, Minimal APIs, NativeAOT, EF Core, and Dapper.AOT.
• Security Standards: Strong knowledge of API security frameworks including OAuth2, OIDC, and JWT authentication/authorization.
• Databases: Practical experience working with MariaDB or MySQL, alongside legacy application integration.

Preferred Skills

• Hands-on experience with GitLab CI/CD pipelines and containerization deployment.
• Familiarity with industrial or IoT data platforms and architectures.