Job 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) 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 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
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