Senior C# Engineer - Enterprise Validation & API

United States Digital Space LLC; Singapore; On-site; SGD 90,000 - 150,000; Full time

Job summary

United States Digital Space LLC in Singapore seeks an experienced Software Engineer to design, develop, and maintain scalable enterprise applications across on‑premises and cloud environments, driving the full SDLC with cross‑functional collaboration.

The role emphasizes validation engineering, API design, front‑end integration with TypeScript/React/NodeJS, and DevSecOps practices. Candidates should have 5+ years in software engineering and strong SQL data analysis skills.

Qualifications

• 5+ years of experience in software engineering.
• Hands-on with C# and enterprise-grade application development.
• Strong experience in validation engineering, including developing Validation Test Plans (VTP) and resolving validation failures.
• Experience in API design and development, unit and integration testing, and front-end integration (TypeScript, ReactJS, NodeJS preferred).
• Proficiency with relational databases (e.g., Oracle) and data analysis.
• Experience with DevSecOps practices and tools (Git, GitLab CI, code quality platforms).
• Minimum 2 years of experience in software validation automation.

Skills

C#

Validation engineering

API design

Unit testing

Integration testing

TypeScript

ReactJS

NodeJS

Relational databases

Data analysis

DevSecOps

Software validation automation

Oracle

Tools

Git

GitLab CI

Job description

United States Digital Space LLC in Singapore seeks an experienced Software Engineer to design, develop, and maintain scalable enterprise applications across on‑premises and cloud environments, driving the full SDLC with cross‑functional collaboration.

The role emphasizes validation engineering, API design, front‑end integration with TypeScript/React/NodeJS, and DevSecOps practices. Candidates should have 5+ years in software engineering and strong SQL data analysis skills.