Senior Full-Stack Engineer, AI-Driven Internal Platform

Thumbtack; Toronto; On-site; CAD 180,000 - 233,000; Full time

Job summary

Thumbtack in Ontario, Canada is expanding its Business Applications team to deliver AI-enabled internal platforms and secure, auditable workflows. You will own end-to-end tooling, APIs, and integrations with HR systems, enabling safer automation and scalable internal support.

With 5+ years in software engineering, you’ll tackle full-stack challenges using React/TypeScript on the frontend and Go/Python on the backend, while handling data stores like Postgres or DynamoDB.

Qualifications

• 5+ years of professional software engineering experience owning end-to-end systems.
• Strong full-stack skills with React/TypeScript frontend and solid backend engineering.
• Experience with relational and non-relational data stores like Postgres or DynamoDB.
• Ability to design secure identity/authorization and auditability for sensitive data.
• Experience building internal tools or business systems and integrating with SaaS APIs.
• Good product judgment and autonomous, high-impact work.

Responsibilities

• Take early People products to production and grow them into a suite of experiences.
• Redesign workflows across systems (e.g., Workday) and onboarding processes.
• Build APIs/connectors to let AI tools access context and complete workflows.
• Design permissioning for confidential People data and audits.
• Partner on instrumentation and AI evaluations to measure quality and boundaries.
• Create reusable building blocks to empower teams to build safely.
• Own shipped work across the stack and guide technical direction with partners.

Skills

React

TypeScript

Full-stack

Go

PHP

Python

Postgres

DynamoDB

Job description

Thumbtack in Ontario, Canada is expanding its Business Applications team to deliver AI-enabled internal platforms and secure, auditable workflows. You will own end-to-end tooling, APIs, and integrations with HR systems, enabling safer automation and scalable internal support.

With 5+ years in software engineering, you’ll tackle full-stack challenges using React/TypeScript on the frontend and Go/Python on the backend, while handling data stores like Postgres or DynamoDB.