Sr. Software Engineer, Platform

Thumbtack helps millions of people confidently care for their homes. Thumbtack is the one app you need to take care of and improve your home — from personalized guidance to AI tools and a best‑in‑class hiring experience. Every day in every county of the U.S., people turn to Thumbtack to complete urgent repairs, seasonal maintenance and bigger improvements. We help homeowners know which projects to do, when to do them and who to hire from our growing community of 300,000 local service businesses. If making an impact inspires you, join us. Imagine what we’ll build together.

About The Business Applications Org

The Business Applications org builds and operates the internal systems that help Thumbtack run effectively at scale: Salesforce‑centered workflows, admin tooling, and integrations that connect teams across the company. We are expanding that foundation into a broader internal platform for business workflows, with shared APIs, reusable integration patterns, and safe, auditable capabilities for business‑critical actions. The org works closely with engineering and business partners to turn complex internal needs into systems that are easier to operate, extend, and automate responsibly.

The challenge

Thumbtack's internal systems are becoming more connected, more automated, and more central to how teams serve customers, pros, and the business. Business Applications is helping drive that shift by turning Salesforce‑centered workflows and operational tools into a broader internal platform for AI‑enabled work. The challenge for this engineer is to build the backend services, APIs, and integration patterns that let agents and business systems take safe, auditable action across Thumbtack's internal ecosystem. This work will shape how teams move from one‑off operational workflows to production capabilities that can be reused, extended, and trusted by the business.

What You’ll Do

• Build backend services and APIs that connect Business Applications workflows with Thumbtack's product and platform services.
• Bring agentic and AI‑enabled workflow prototypes into production with the reliability, observability, and human review needed for business‑critical work.
• Create reusable integration patterns that let internal tools, third‑party systems, and agents take safe, auditable action across systems.
• Partner with business and engineering teams to understand operational workflows and turn the highest‑value problems into durable backend capabilities.
• Help define the technical foundation for a BusApps platform that supports reliable integrations, safe automation, and production AI workflows.

In order to be successful, you must bring

• Strong backend engineering experience building production services, APIs, or platform capabilities.
• Technical judgment for integrations where reliability, security, data correctness, and audibility matter.
• Ability to turn ambiguous operational workflows into clear technical designs that can be delivered incrementally.
• Strong collaboration skills with engineering, business, and operational partners, especially when technical constraints and business needs need to be reconciled.
• Comfort learning new domains quickly, including internal systems, third‑party business applications, and AI‑enabled workflows, with the judgment to know when automation needs human review.

Expected salary ranges

For candidates living in Ontario and British Columbia, the expected salary range for the role is currently $180,200.00 - $233,200.00. Actual offered salaries will vary and will be based on various factors, such as calibrated job level, qualifications, skills, competencies, and proficiency for the role.

Thumbtack embraces diversity. We are proud to be an equal opportunity workplace and do not discriminate on the basis of sex, race, color, age, pregnancy, sexual orientation, gender identity or expression, religion, national origin, ancestry, citizenship, marital status, military or veteran status, genetic information, disability status, or any other characteristic protected by federal, provincial, state, or local law. We also will consider for employment qualified applicants with arrest and conviction records, consistent with applicable law.

Thumbtack is committed to working with and providing reasonable accommodation to individuals with disabilities. If you would like to request a reasonable accommodation for a medical condition or disability during any part of the application process, please contact

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