Senior Full-Stack Software Engineer

Job Description

Job DescriptionJob Title: Senior Full-Stack Software Engineer (C# / React / GenAI).
Location: Las Vegas, NV (On-site).
Employment Type: Contract (W2 through ZipStaff — No C2C or 1099).
About the Opportunity:ZipStaff is seeking a Senior Full-Stack Software Engineer for the GenAI Discovery and Prototyping team at a global agriculture and food company.You will deliver a platform upgrade that connects enterprise data pipelines, LLMs, and rapid application prototypes. This is a true full-stack delivery seat: C# on the back end, React + TypeScript on the front end, with secure ingest, validation, and return of LLM outputs in an enterprise environment.
What You’ll Do:

• Build scalable application layers in C# and React / TypeScript.
• Design software that securely ingests, validates, processes, and returns LLM outputs.
• Connect enterprise data pipelines to prototype and production-bound GenAI apps.
• Work across multiple staging environments in a secure data environment.
• Deliver rapidly in a prototyping team inside a mature enterprise.
• Collaborate as platform requirements change.

Required Qualifications:

• 7+ years professional software engineering; senior full-stack delivery.
• Strong C# back-end development.
• Strong React with TypeScript.
• Hands-on experience building applications powered by generative AI / LLMs.
• Treats LLMs as statistical tools—prompting plus engineering (validation, grounding, error handling), not demo-only chat UIs.
• Comfortable in secure enterprise data environments and multi-stage promotion.
• Ability to work on-site in Las Vegas, NV.
• Must be legally authorized to work in the United States without sponsorship now or in the future.

Preferred Qualifications:

• Enterprise data-pipeline integration.
• Experience taking GenAI prototypes toward reliable internal platforms.
• Fast iteration without dropping security or code quality.

Benefits:

• Healthcare insurance (employee-only).
• Dental insurance.
• Vision insurance.
• 401(k).
• Paid time off.

About ZipStaff:ZipStaff partners with leading organizations to connect skilled technology professionals with high-impact contract opportunities. We focus on quality matches, clear communication, and long-term success for candidates and clients.
To apply, submit your resume highlighting C#, React/TypeScript, and shipped GenAI application work—not prompt-only or Python-notebook-only backgrounds.