Full Stack Product Engineer

LTS

11h • Remote

About The Position

LTS is seeking a Full-Stack Product Engineer to join a small, senior engineering team applying frontier AI to one of the most consequential legacy systems still running in production today. The mission is to build agents that read, translate, and modernize a decades-old codebase that millions of people quietly depend on. The work has executive backing, real users, and a customer who knows exactly what they’re buying. The team is small by design, with every seat carrying unusual leverage. They hire people who are already deep in this work and use AI tooling natively — agents in parallel, model as collaborator, no exceptions.

Requirements

• Bachelor’s degree in Computer Science, Engineering, or a related field, plus 5 years of professional full-stack engineering experience; equivalent experience may substitute for the degree requirement.
• Track record of shipped product features that can be walked through in detail — including how the design changed once real users got their hands on it.
• Ability to work in a fast-paced, collaborative environment.
• Senior full-stack engineer; both frontend and backend are part of the daily job.
• Modern React (hooks, suspense, recent patterns); strong TypeScript fluency.
• Comfort across a serverless cloud backend: typed RPC, ORM-level work, AWS or comparable.
• Density of shipped work — recent product features that real users used, with measurable iteration after launch.
• Pushes back on a spec when wrong; doesn’t wait for permission to ship.
• Heavy native use of AI tooling: subagents, model as collaborator.
• Demonstrated experience in a remote work environment.

Nice To Haves

• Prior developer-facing or technical-user-facing products (IDEs, observability tools, internal platforms).
• Experience visualizing complex graphs or code relationships (call graphs, dependency trees, AST views).
• Design sense good enough to ship polished UI without a designer on everyday work.
• Experience pairing with a designer directly in code rather than via Figma handoff.
• Public open-source work or shipped side projects with visible craft.

Responsibilities

• Takes agent capability and turns it into product.
• End-to-end feature delivery across the surfaces engineers actually use to do their work — code understanding, code translation, modernization authoring.
• Build the frontend in modern React with a serverless TypeScript backend.
• Pair tightly with the Principal Designer in code — Designer absorbs visual-heavy surfaces, the Full-Stack Engineer owns logic-heavy surfaces (authoring, review, agent integration).
• Write specs, ship, watch usage, iterate; close the loop from design through deploy.
• Push back on a spec you think is wrong before writing the code.
• Own the product-quality bar across the surfaces you ship — performance, accessibility, polish, and the moment-to-moment feel.
• Integrate agent output into product surfaces in a way that respects both engineering correctness and user trust.

Benefits

• Comprehensive benefits for you and your family
• A career path that rewards ambition and performance
• Access to cutting-edge tools and technologies
• A culture that values innovation, growth, collaboration, and quality
• The opportunity to support high visibility federal missions in IT and healthcare

What This Job Offers

• Job Type: Full-time
• Career Level: Senior