Senior Full-Stack AI Product Engineer

CGS Nexus; United States; Remote; USD 130,000 - 170,000; Full time

Benefits offered by this job

Remote work

Competitive salary

Career growth

Collaborative environment

Health insurance

Job summary

CGS is seeking a Senior Full-Stack AI Product Engineer who thrives in a fast-moving, AI-native development environment. You will turn PRDs and UX mockups into cohesive, production-ready web products with substantial LLM functionality, collaborating closely with founders, designers, and product stakeholders.

You will own features from concept through deployment and iteration, build responsive interfaces with React/Next.js, design robust backends, and craft agentic workflows and tool integrations.

Qualifications

• Proven ability to independently ship complete products or substantial features.
• Experience building production applications with LLMs and related APIs.

Responsibilities

• Turn PRDs and UX mockups into cohesive working products.
• Build responsive full-stack web applications with LLM features.
• Design and implement agentic workflows and tool integrations.
• Evolve prototypes into secure, maintainable production systems.
• Own features from concept to deployment and iteration.
• Collaborate with founders, designers, and product stakeholders.
• Identify edge cases and blockers early.
• Maintain engineering judgment while using AI tooling.
• Make thoughtful product, UX, and technical decisions without constant direction.
• Know when to iterate or pivot based on feedback.

Skills

Full-stack development

LLM integration

React/Next.js

Backend API design

UX & product sense

Independent delivery

Communication

Tools

Cursor

Codex

OpenClaw

Job description

Innovation Starts With You.

Senior Full-Stack AI Product Engineer

Full time -Permanent Position

Job Role

We’re looking for a highly engaged, self-directed developer who can turn product ideas, PRDs, and UX mockups into exceptional working software.

This is a hands-on role for someone who thrives in a fast-moving, AI-native development environment. You’ll build full-stack web products with substantial LLM functionality—from compelling product demos to polished, production-ready experiences.

Our workflow is PRD-driven and highly iterative. We work primarily in Cursor and Codex, using modern AI-assisted development practices to move quickly without sacrificing product quality. Experience with OpenClaw, agentic orchestrators, or multi-agent systems is a major advantage.

Responsibilities

• Turn PRDs, UX mockups, and loosely defined ideas into cohesive working products.
• Build responsive, polished full-stack web applications.
• Design and implement meaningful LLM-powered features— not superficial AI add-ons.
• Develop agentic workflows, tool integrations, structured outputs, and orchestration logic.
• Create high-impact prototypes and product demos at “vibe-coding speed.”
• Evolve successful prototypes into secure, maintainable production systems.
• Make thoughtful product, UX, and technical decisions without requiring constant direction.
• Collaborate closely with founders, designers, and product stakeholders.
• Identify missing requirements, edge cases, and opportunities before they become blockers.
• Use AI development tools effectively while maintaining strong engineering judgment.
• Own features from initial concept through implementation, deployment, and iteration.

Qualifications

• Strong full-stack web development experience.
• Proven ability to independently ship complete products or substantial features.
• Experience building production applications with LLMs and related APIs.
• Strong product instincts and attention to UX details.
• Ability to translate mockups into responsive, polished interfaces.
• Comfort working from PRDs while resolving ambiguity proactively.
• Experience with modern frontend frameworks such as React, Next.js, or equivalent.
• Strong backend and API development skills.
• Familiarity with databases, authentication, cloud deployment, testing, and observability.
• Ability to balance development speed with reliability and maintainability.
• Clear communication, sound judgment, and a high level of personal ownership.

Nice to have Qualifications

• OpenClaw experience.
• Agentic orchestrator or multi-agent system experience.
• Experience with tool calling, MCP, RAG, memory systems, evals, and structured generation.
• Experience building human-in-the-loop AI workflows.
• Deep familiarity with Cursor, Codex, or similar AI-native development environments.
• Experience converting rapid prototypes into scalable production systems.
• A portfolio of polished AI products, experiments, or interactive demos.

Benefits

• Competitive Salary.
• A comprehensive benefits package (Health, Dental, Life Insurance and RRSP).
• Remote work from home (available options).
• The opportunity for career growth and development.
• A collaborative and inclusive work environment.

CGS evaluates compensation individually for each selected applicant. Final salary placement within our established parameters is based on multiple criteria, including regional market rates, internal equity considerations, cost-of-living geography, and candidate-specific attributes like professional experience, education, and technical skill sets.

Furthermore, team members may have access to performance-based incentive structures and performance metrics designed to offer additional earning potential based on business growth.

About Us

For more than 40 years, CGS has empowered global enterprises to drive breakthrough performance through innovative business applications, enterprise learning and outsourcing. CGS Immersive® is an innovation lab and training transformation engine modernizing training programs and delivering immersive experiences tailored to meet the evolving needs of organizations across industries.

Learn more about CGS Inc® and CGS Immersive® in our websites:

https://cgsinc.com/en
https://cgsimmersive.com/