Staff Software Development Engineer - Tech Lead

Role Description

We are seeking a hands-on Tech Lead / Staff Software Development Engineer to join a high-energy team driving AI transformation across our product platform. This role will be involved throughout the entire development lifecycle — designing and building AI-powered application capabilities that empower engineering teams to develop, deploy, and operate agentic AI applications at scale.

• Architect, design and build full-stack AI application capabilities — spanning agent backend services, APIs, and front-end interfaces — that enable engineering teams to ship agentic features reliably.
• Lead technical design for agent-powered product features using CopilotKit for in-app copilots and generative UI, and Deep Agents-style architectures for complex workflows.
• Instrument, trace, and evaluate agent behavior in production using LangSmith, driving down latency, cost, and error rate through systematic evaluation.
• Own the connective tissue between backend agent logic and frontend experience — API design, state synchronization, and human-in-the-loop approval flows.
• Review and influence designs produced across the team; set and enforce engineering standards for agent reliability, prompt/version management, and rollback strategies.
• Mentor senior and mid-level engineers on agentic systems.
• Drive platform scalability, performance, and reliability as usage grows.
• Support production issues across the full stack — frontend, backend, infra, and agent behavior alike.
• Build and maintain modern web technologies across the product: performant, accessible React/TypeScript interfaces, well-designed REST/GraphQL APIs.
• Partner directly with product and design to translate ambiguous requests into scoped, testable technical plans.

Qualifications

• 8+ years of professional software engineering experience, with demonstrated full-stack ownership.
• 2+ years hands-on experience building and operating LLM/agent-powered applications in production.
• Hands-on experience with CopilotKit or comparable in-app agent UI frameworks.
• Experience building or operating Deep Agents-style systems.
• Practical experience with LangSmith for tracing, evaluation, and debugging LLM/agent behavior in production.
• Hands-on experience with LangGraph for agent orchestration.
• Strong, current web technologies experience — React, modern component architecture, browser performance, and accessibility.
• Demonstrated technical leadership: design reviews, mentoring, and being the escalation point when things break in production.
• Experience working on a platform team.
• Proven ability to manage and context-switch across multiple concurrent projects and stakeholders.
• Strong communication skills, written and verbal.
• Out-of-the-box thinker who can move quickly.
• Solid grasp of LLM fundamentals.

Requirements

• Familiarity with the AG-UI protocol or other agent-to-frontend interaction standards.
• Experience with additional agent frameworks (CrewAI, Mastra, Pydantic AI, or similar).
• Experience with vector databases and retrieval pipelines.
• Background in observability/platform engineering outside of AI.
• Model fine tuning, ML Ops, Traditional ML/Data Science experience.

Benefits

• Comprehensive medical, dental, and vision coverage.
• Paid time off.
• Retirement savings options.
• Wellness programs and other resources.

Pay Range

The typical pay range for this role is: $130,295.00 - $260,590.00. The actual base salary offer will depend on a variety of factors including experience, education, geography and other relevant factors.