Senior Full-Stack Engineer - AI Workflows & Agents

Valkai; New York (NY); On-site; USD 140,000 - 210,000; Full time

Job summary

Valkai is seeking a full-stack product engineer to turn complex AI capabilities into clear, dependable workflows across web and document-based surfaces. You will own frontend, backend, data, and AI systems to ship complete products with a strong focus on interaction design and technical quality.

You will collaborate with product, design, AI Strategy, and AI engineers to define and ship high-impact experiences, from problem discovery to launch and iteration.

Qualifications

• Shipped user-facing products from early concept through production.
• Experience designing interfaces for agents, AI systems, or probabilistic software.
• Experience working on workflow-heavy products for enterprise customers.
• Familiar with Next.js, TypeScript, Python, Postgres, Azure and AWS.
• Strong React and TypeScript experience.

Responsibilities

• Build assistant experiences across web and document-based workflows.
• Design product patterns for scheduled work, durable agent runs, approvals, progress, and recovery.
• Build reusable workflow and prompt libraries that help users get consistent results.
• Create clear controls, feedback loops, and explanations for complex agent behavior.
• Connect product telemetry and evaluations to measure and improve quality.
• Work across the frontend and backend stack to ship complete, reliable features.
• Partner closely with product, AI Strategy, and AI engineers from problem discovery through launch and iteration.

Skills

Product mindset

High code quality

Full-stack ownership

Problem solving

Collaborative

Tools

React

TypeScript

Next.js

Python

Postgres

Azure

AWS

Job description

Valkai is seeking a full-stack product engineer to turn complex AI capabilities into clear, dependable workflows across web and document-based surfaces. You will own frontend, backend, data, and AI systems to ship complete products with a strong focus on interaction design and technical quality.

You will collaborate with product, design, AI Strategy, and AI engineers to define and ship high-impact experiences, from problem discovery to launch and iteration.