Position: Full stack - .NET

Location: Fremont, CA

Mode of Interview: Face to Face

Skills : Full stack - .NET (C#), (Python, or Go is also OK, but willingness to work primarily in C#)

React TypeScript workspace

Job Description

Team: HR Operations & Systems

Level: Mid-level (5–10 years)

About the Team

HR Operations & Systems provides the internal platforms that power HR and payroll operations teams — enabling them to run cycles, investigate discrepancies, and satisfy audit and compliance obligations. We build the tooling that a real, named group of people opens every morning — short feedback loops, high correctness bar, and no ambiguity about whether the thing we shipped helped.

You'll work across the whole stack: a .NET service layer backing a React TypeScript workspace, sitting on top of MySQL and SQL Server.

What You'll Do

Build and ship features end to end — schema and migration, API, and UI — rather than throwing work over a wall
Design RESTful APIs in .NET (C#) following our controller → service → repository layering, with dependency injection throughout
Build data-dense React interfaces in TypeScript: AG-Grid views, TDS components, Jotai and React Query for state and server data
Work on audit workflows, findings triage, and security group management — features with compliance consequences, where "mostly right" isn't right
Write unit and integration tests alongside the code (see test/ — unit and integration suites are part of the definition of done, not a follow-up ticket)
Participate in code review, both directions

What We're Looking For

Required

5 years building production backend services in .NET/C#, Python, or Go — with a willingness to work primarily in C#
Working React and TypeScript experience; comfortable owning a feature's UI, not just its API
Solid SQL: you can design a table, read an execution plan, and explain why a query got slow
Testing habits and comfort with Git-based review workflows
CS fundamentals — data structures and algorithms you can actually reason about, not recite

Nice to Have

HR, operations, finance, or compliance domain experience; or a background in enterprise/B2B internal tooling
Messaging (RabbitMQ, Kafka) or caching (Redis) in production
Docker, CI/CD pipeline ownership
ORM depth — EF Core, Dapper, or equivalent
Angular (a secondary framework in our stack)

AI Fluency

We're actively building AI into the workspace. Any of the following is a meaningful plus:

Integrating LLM APIs (Azure OpenAI, Claude, or similar) into production backend services
RAG pipelines, vector databases, or structured prompt engineering
Shipping AI-assisted features in an enterprise app

.Net fullstack Developer

Job description