# Senior Backend Engineer

**Company:** [Quantum HR](http://jobs.workable.com/companies/xzmWYcCDdMxZRjk8mo8UZY.md)
**Location:** Remote
**Workplace:** remote
**Employment type:** Full-time
**Department:** International Recruitment

[Apply for this job](http://jobs.workable.com/view/81d30f59-7fb7-488f-9e9b-201ad3dce75d)

## Description

**About Us**

Quantum HR is a premier human resources consulting firm dedicated to connecting exceptional talent with leading organizations worldwide. We specialize in providing bespoke recruitment solutions, leveraging deep industry insights and a global network to help companies build high-performing teams by matching them with professionals who truly fit their needs and culture.  
  
**About the Role**

We’re hiring a **Senior Backend Engineer (.NET)** to help scale **our client**, a field service management platform powering large-scale inspection operations.

You’ll work on the core backend (APIs, business logic, data layer) behind company’s workflow, form builder, and report engines—focusing on **simplifying a mature codebase** and building **scalable, configuration-driven systems** that support enterprise clients without custom development.

This is a senior IC role with real ownership over system design and backend architecture as the platform evolves toward cloud scale.

  
**Key Responsibilities**

-   Design, build, and maintain scalable backend systems using .NET
-   Simplify and refactor a mature, feature-rich codebase (improving structure, clarity, and maintainability)
-   Develop clean, consistent, and consumer-friendly REST APIs
-   Design modular, well-bounded system components
-   Build and enhance configuration-driven platform capabilities (no-code/low-code style abstractions)
-   Optimize database performance (queries, execution plans, indexing)
-   Ensure system reliability (logging, failure handling, data integrity)
-   Collaborate closely with cross-functional teams (frontend, mobile, QA)

## Requirements

-   Strong experience with .NET (Core and/or Framework)

-   Solid experience with Entity Framework and SQL Server
-   Strong SQL skills (query optimization, debugging performance issues)
-   Proven experience building and designing REST APIs
-   Strong systems thinking and ability to design modular, scalable architectures
-   Experience working with production systems and maintaining long-term code quality  
      
    **Nice to Have**
-   Experience refactoring complex or legacy systems
-   Experience building configuration-driven or extensible platforms
-   Familiarity with AWS or cloud-based architectures
-   Experience deploying applications on IIS
-   Exposure to large-scale enterprise systems

## Benefits

-   High-impact role shaping a product at a key scaling stage

-   Work on a platform used by large enterprise clients
-   Strong growth trajectory toward global expansion and Gartner recognition
-   Competitive Package paid in USD