Senior Full Stack Engineer

CommIT•Long Grove, IL

6d•Remote

About The Position

We’re building the next generation of AI-powered developer tools—systems that understand large codebases, automate real engineering work, and integrate directly into how developers build software. We’re a fast-growing, fully remote, international company operating at the edge of AI, infrastructure, and developer productivity. This role is for engineers who enjoy hard problems, high ownership, and building things that didn’t exist before. As a Senior Full-Stack Engineer, you’ll take ownership of critical parts of the platform—from backend architecture to frontend experiences used daily by developers. This is not a feature-factory role. You’ll often work independently on complex initiatives, making architectural decisions, untangling difficult technical problems, and shipping solutions that scale. You’ll collaborate closely with AI engineers, but you’ll be expected to drive execution and technical direction.

Requirements

7+ years of full-stack engineering experience in production environments
Designing and owning complex systems end-to-end
Making pragmatic architectural decisions in fast-moving environments
Working with minimal process and high trust
Solving hard problems without needing step-by-step direction
Experience in early-stage or fast-scaling startups
Technical leadership or ownership over major initiatives
Familiarity with AI-powered tools, CI/CD, or Infrastructure as Code

Responsibilities

Scalable backend services and APIs that power AI-driven automation
High-quality frontend experiences using React and TypeScript, focused on performance and usability
Systems that analyze and operate on large, real-world codebases
Integrations that embed AI assistants directly into developer workflows
Infrastructure and systems optimized for speed, reliability, and iteration

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