Senior Full Stack Engineer, People Products

Thumbtack

3d • $180,200 - $233,200

About The Position

Thumbtack’s Business Applications organization builds and operates internal systems, including Salesforce-centered workflows, admin tooling, and integrations. The organization is expanding this foundation into an internal platform for AI-enabled work, with shared APIs, reusable integration patterns, and safe, auditable capabilities for business-critical actions.

The Senior Full Stack Engineer will help develop Thumbtack’s People products and systems. This includes taking early products—such as a People Q&A assistant and personalized leader insights—to production and building experiences that offer tailored guidance, proactive support, and approved actions. The role will redesign workflows across Workday, Ashby, and other systems, and build APIs and connectors that allow AI tools to access relevant context and complete workflows safely.

A central focus is engineering secure, identity-aware access to sensitive People information, including performance, feedback, organizational structure, and hiring data. The engineer will design permissioning and privacy controls, including authorization, model access, data retention, approvals, and auditability. They will work closely with People Products & Data and partners across technical and business teams, while contributing to the Business Applications platform. The role owns delivery across the stack, from React and TypeScript through backend services and data models, and helps set technical direction with non-engineering partners.

Requirements

• At least 5 years of professional software engineering experience, including owning systems end to end from an ambiguous problem through production.
• Strong full-stack skills, including React and TypeScript on the frontend and solid backend engineering.
• Working knowledge of relational and non-relational data stores such as Postgres and DynamoDB, or similar.
• Sound judgment with sensitive data, including authentication and authorization, least-privilege access, auditability, and privacy-aware design.
• Experience building internal tools or business systems and integrating with SaaS platforms through their APIs.
• Product judgment to assess workflows, decide what to build, and determine what to cut.
• Comfort operating with a high degree of autonomy as the primary engineer on a product area.
• A track record of raising the technical bar for colleagues.

Responsibilities

• Take early People products to production and expand them into a suite of standalone products, plugins, and everyday tools offering personalized guidance, proactive support, and approved actions.
• Redesign workflows across Workday, Ashby, and other systems, including processes from approved headcount to open requisition and accepted offer to onboarding.
• Build APIs and connectors, including MCP connectors, that enable AI tools to safely access relevant context and complete workflows on users’ behalf.
• Design permissioning for confidential People data, covering identity, person-level authorization, model access, retention, approvals, and audit.
• Partner with People Products & Data on instrumentation and AI evaluations to measure quality, enforce boundaries, and improve products.
• Create reusable building blocks that allow People team members to safely build simpler tools themselves.
• Own shipped products across the stack, from React and TypeScript through service code and data models.
• Set technical direction with non-engineering partners by shaping ambiguous problems, pushing back on scope, and proposing simpler approaches.
• Contribute to and build on the Business Applications platform.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed