Full Stack Engineer — Build Internal Apps & APIs

United Contractor Services, LLC; Kennesaw (GA); On-site; USD 90,000 - 120,000; Full time

Job summary

United Contractor Services, LLC is seeking a Full Stack Developer to build, enhance, and support internal applications used by field and office teams. This role covers the full lifecycle - front‑end interfaces, back‑end services, databases, and the APIs that tie them to our core business platforms.

The ideal candidate is hands‑on and analytical, able to write clean, maintainable code, design a sensible data model, and own applications end‑to‑end.

Qualifications

• 3+ years of professional software development across front end and back end.
• Proficient in at least one backend language (C#, Python, JavaScript).
• Experience with HTML/CSS/JS and a modern frontend framework.
• Strong SQL and relational database design skills.
• Experience building and consuming REST/JSON APIs with authentication.
• Proficient with Git and CI/CD workflows.

Responsibilities

• Build and maintain internal web applications from UI to database.
• Design relational database schemas and queries.
• Develop and consume REST APIs and webhooks.
• Collaborate with cross‑functional teams to translate requirements.
• Test, deploy, monitor, and support applications in production.
• Establish standards for source control and API usage.

Skills

Full stack

C#/Python/JS

Frontend framework

SQL design

REST APIs

Git workflows

Independent worker

Tools

Viewpoint Vista

Procore

ADP

Paylocity

Azure

Job description

United Contractor Services, LLC is seeking a Full Stack Developer to build, enhance, and support internal applications used by field and office teams. This role covers the full lifecycle - front‑end interfaces, back‑end services, databases, and the APIs that tie them to our core business platforms.

The ideal candidate is hands‑on and analytical, able to write clean, maintainable code, design a sensible data model, and own applications end‑to‑end.