Suggested rewrite: Led a cross-functional initiative that improved [business outcome] by [measurable result], demonstrating experience relevant to this role...
Application Security Engineer II
Review the role, location requirements, compensation details, and application process before deciding whether this opportunity fits your next career move.
- Remote from
- Canada
- Salary
- CAD 118,200–152,900 / yr
- Department
- Cybersecurity
- Employment
- Full Time
- Experience
- Senior
- Published
- Apply before
- 30 Nov 2026
- Listing views
- 44
- Application actions
- 3
Make your next move.
Prepare your resume, explore your fit, and draft a cover letter for this opportunity.
The role, at a glance.
Thumbtack is hiring an Application Security Engineer II to help embed secure-by-default practices into product architectures, platforms, and developer workflows. The role focuses on identifying and remediating application risks, conducting design reviews and threat modeling, and creating reusable security tooling and documentation. The engineer will partner closely with product and engineering teams, contribute code to address vulnerabilities, and participate in incident response. Candidates need at least four years of software engineering and/or application security experience, strong OWASP knowledge, and practical expertise in authentication, authorization, secrets management, and secure design. This is a Canada-remote role limited to Ontario and British Columbia.
Role DNA
A quick view of the complexity, pace, ownership and collaboration implied by the job description.
Pace & Pressure
4/5Autonomy Level
4/5Communication Load
4/5Salary analysis
Estimated compensation compared with the broader CA market for similar roles.
Core skills
Skills and capabilities most closely associated with this opportunity.
Sample interview questions
I would identify the system boundaries, assets, users, data flows, trust boundaries, and entry points first. I would then enumerate likely threats using a structured approach such as STRIDE, prioritize them by likelihood and impact, and work with the engineering team to define proportionate mitigations and ownership before implementation.
I would validate scope and exploitability, coordinate with the responsible engineering and incident-response stakeholders, and prioritize containment or mitigation. After remediation, I would verify the fix, document root cause and impact, and propose durable preventive controls such as dependency checks, secure patterns, tests, or developer guidance.
I would build secure defaults and reusable components for common needs such as authentication, authorization, secrets handling, and input validation. Integrating automated checks into CI/CD, providing clear remediation guidance, and offering lightweight design-review processes reduces friction while improving consistency.
I explain the concrete attack path, affected assets, likely business impact, and uncertainty rather than relying on severity labels alone. I then discuss feasible mitigation options, their delivery cost, and residual risk so the team can make a documented, risk-informed decision.
I would review the authorization model, trust boundaries, and enforcement points to ensure checks are server-side, consistent, and based on verified identity and permissions. I would test for horizontal and vertical privilege escalation, insecure direct object references, default access, and bypasses across APIs, background jobs, and administrative workflows.
About this role.
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 Cybersecurity Team
The Security Engineering team at Thumbtack is focused on enabling innovation at scale by making the secure path the easiest path. We believe strong security is not a blocker to velocity, but a force multiplier when it is designed into systems, platforms, and developer workflows from the start.
We partner closely with Product, Engineering, Platform, and Data teams to shape system design, guide architectural decisions, and evolve Thumbtack’s security posture as the company scales. Through collaboration, automation, and thoughtful tradeoffs, we help ensure Thumbtack can ship fast, innovate boldly, and maintain customer trust.
The Challenge
As Thumbtack scales and increasingly incorporates AI-powered features into our products and internal systems, security must evolve without slowing innovation. The number of services, deployment patterns, and data flows continues to grow, and traditional approaches that rely heavily on manual reviews or after-the-fact controls do not scale to meet this need.
Instead, the challenge is to design security into the system itself. This means building secure defaults, paved paths, and reusable building blocks that product and engineering teams can adopt with minimal friction. By embedding security directly into architectures, tooling, and infrastructure, we reduce cognitive load on engineers and enable teams to move quickly and confidently while meaningfully lowering risk.
What you’ll do
Own and deliver application security work within defined projects or domains. Contribute to cross-functional security initiatives, executing clearly scoped pieces of larger efforts.
Identify, prioritize, and help remediate application security risks in partnership with engineering teams.
Apply secure-by-default patterns and approved architectures when designing or reviewing systems.
Partner with product and engineering teams to assess risk and recommend practical, risk-informed security improvements. Participate in application security design reviews and threat modeling for new and existing systems.
Write code, reviews, and documentation to address vulnerabilities and reduce recurring classes of issues.
Participate in security incident response and contribute to post-incident analysis and remediation.
In order to be successful, you must bring
4+ years of experience in software engineering and/or application security.
Practical experience with application security techniques such as threat modeling, secure design patterns, authentication and authorization, secrets management, and vulnerability remediation. Strong understanding of secure coding practices and common application security risks (e.g., OWASP Top 10).
Ability to assess security risks and break down complex problems, reason about tradeoffs, make sound recommendations, and deliver practical, impactful solutions with guidance when needed.
Strong sense of ownership over assigned work, with the ability to execute independently and follow through.
Clear written and verbal communication skills, including the ability to explain security issues to engineers with varying levels of security expertise.
A growth mindset and interest in learning from more senior engineers and expanding depth in both application and cloud infrastructure security over time.
Expected salary ranges
For candidates living in Ontario and British Columbia, the expected total cash compensation (base salary + variable pay, if applicable) range for this role is currently $118,200.00 – $152,900.00.
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: recruitingops@thumbtack.com.
For information about how Thumbtack collects, uses, and shares personal information about job applicants, please see our Job Applicant Privacy Policy.
We put as much craftsmanship into candidate safety as we do into the hiring experience itself. While scammers may try to impersonate our team, we’ll never ask you for money, banking info, or SSNs during hiring. Check out our blueprint on how to spot the fakes.
This job listing has been manually reviewed by the Jobicy Trust & Safety Team for compliance with our posting guidelines, including verification of the company's legitimacy, accuracy of job details, clarity of remote work policy, and absence of misleading or fraudulent content.
Apply now.
Follow the employer’s application method and review Jobicy’s safety guidance before sharing personal information.
Continue on the employer website
Protect your personal information and never pay to secure an interview or job offer. .
