FullStack is your AI-native engineering partner, built to turn AI capability into certainty. Most companies can demo AI; few can get it to production and prove what it produced. We close that gap with three capabilities, AI built into your products from the start, elite vetted talent who apply it, and transparent execution that shows value every step of the way. With now over 600 customers in North America, FullStack is one integrated partner for all your AI engineering needs. With FullStack, you move forward with confidence.
We’re Most Proud Of
Offering life-changing career opportunities to talented software professionals across the Americas.
Building highly-skilled software development teams for hundreds of the world’s greatest companies.
Having delivered hundreds of successful custom software solutions, which have positively impacted the lives and careers of millions of users.
Our 4.1-star rating on GlassDoor.
Our client Net Promoter Score of 68, twice the industry average.
The Position
We're looking to hire an Agentic Software Engineer (OpenAI Codex)
to join our team. You'll work with one of our incredible product teams to build and deliver a product to our clients.
What We're Looking For
5+ years of professional software development experience with a deep understanding of full-stack architectures (e.g., Java, Python, C#, React, Node, etc.).
Advanced English is required.
Successful completion of a four-year college degree is required.
Deep experience using OpenAI Codex as a primary development environment to coordinate AI-driven implementation across large, multi-file systems while maintaining architectural oversight.
Experience delivering production software where AI systems generate the majority of implementation code.
Strong context engineering skills, including structuring codebases, specifications, and documentation to produce reliable, context-efficient AI output.
Ability to translate complex product requirements into machine-executa