Senior Security Developer, Vulnerability Management

Build something people love

Wealthsimple is Canada’s leading financial innovator. The company offers a full suite of simple, sophisticated financial products across managed investing, do-it-yourself trading, cryptocurrency, tax filing, spending and saving. Wealthsimple currently serves more than 4 million Canadians and holds over $155 billion in assets under administration. The company was founded in 2014 by a team of financial experts and technology entrepreneurs, and is headquartered in Toronto, Canada.

We're proud of what we've built — and we're just getting started. Read our Culture Manual and learn more about how we work.

About the Role

Most vulnerability management programs are still built around people manually triaging tickets and chasing down owners. We're taking a different approach: a platform that uses AI-assisted tooling to do a lot of that work for us, and this role is where that gets built. We want you to design the automations, integrations, and workflows that take those fundamentals further: less manual ticket routing, more systems that carry a finding through triage, ownership, and remediation on their own.

The skill set we're after, automation-first thinking, developer-level reasoning, and the ability to build integrations across systems, is what turns a program from manual and reactive into something that runs on its own. That's the job: build the automation and integrations that let our VM tooling handle the load without a person in the loop at every step. We're also building deeper integration with our CRS (Cyber Reasoning System) harness, so a finding can move from triage through automated sandbox validation to a generated fix with less manual handling at each stage.

We use AI-assisted development tools heavily and expect you to use them too.

In this role, you will have the opportunity to:

• Own and evolve our custom VM platform, working on deployment, integrations, data model, and automation workflows. This is a greenfield opportunity to shape how the platform grows.

• Build automation across the full VM lifecycle: triage, ticket routing, SLA tracking, ownership resolution, and follow-up. We use Claude Code and Tracecat, and you'll be expected to use and extend both meaningfully.

• Take a platform built around one team's workflow to one that fits how the rest of engineering actually works. Get it in front of people, bake it into their existing processes, and make it something teams reach for.

• Integrate scanner data into our VM pipeline and maintain the enrichment workflows that turn raw findings into actionable tickets.

• Build the queries, dashboards, and automated reports that give the team and leadership clear visibility into vulnerability posture.

• Stay current on the threat landscape, especially the growing role of AI in vulnerability research and exploitation, and factor that into how we build and prioritize.

• Help build toward a future where a validated finding gets tested and patched by CRS in a sandbox, and comes back out as a PR, closing the loop with minimal manual work.

We are looking for someone who:

• Is familiar with the software development lifecycle end to end, well enough to recognize where a vulnerability was actually introduced in the process and to tell when an AI tool is hallucinating a finding instead of catching a real one.

• Has 4+ years of hands-on vulnerability management and/or security engineering experience, including scanner integration, triage workflows, and remediation tracking. If vulnerability management isn't explicitly on your resume, you should be able to explain clearly why you understand it anyway.

• Has production AWS experience.

• Has a strong automation-first mindset. You've built things that replace manual processes.

• Has deep familiarity with VM tooling (Tenable, Semgrep, Rapid7, or comparable scanners) and knows how to build integrations on top of them via API.

• Understands the difference between package and library vulnerabilities well enough to know where a fix actually belongs, and understands vulnerability classes across application and infrastructure layers (XSS vs. CSRF, code vs. container issues) well enough to have a real conversation with a developer who disagrees with a finding. Knows which scanners belong at which stage of the pipeline (CI, production, network) and how a vulnerability actually ends up running in production, including in containers. Hands-on exposure to SAST/DAST/SCA tooling and OWASP fundamentals helps here.

• Has hands-on familiarity with GitHub Actions, ArgoCD, Kubernetes, AMIs, and container images (ECR or comparable). You'll need this to help maintain our VM platform, and because each of these carries its own patch management burden since they all run code.

• Understands attack surface and exposure management, including how a basic web app's architecture and traffic flow map to real risk. You'll be making risk acceptance calls, and that requires seeing the actual exposure, not just a CVE score.

• Can translate business and partner needs into solutions. You'll spend real time with developers who don't understand a finding, disagree with it, or say a fix didn't work, and you need to work through that without losing the thread.

• Has a strong understanding of the programs vulnerability management connects to: CI/CD and deployment pipelines, threat intelligence, and bug bounty or responsible disclosure programs. VM doesn't operate in a vacuum, and we want someone who understands the connections that exist today and the ones that should exist but don't yet.

• Is familiar with different compliance programs and vulnerability management controls.

• Is actively using AI-assisted development workflows (Claude Code, Cursor, Copilot, or similar) and treats them as a force multiplier, not a novelty.

Nice to have:

• Experience with security orchestration platforms (Tracecat, Tines, XSOAR, or comparable).

• Experience with bug bounty or responsible disclosure programs like HackerOne.

• Familiarity with vulnerability scoring and prioritization frameworks (CVSS, EPSS, SSVC). This is quick to pick up on the job, so it's weighted lower than the items above.

• Experience in a fintech or regulated-industry environment.

• Open-source security tooling contributions.

Why Wealthsimple?

🌸 Top-tier health benefits and life insurance

📈 Long-term group savings with employer match, through Wealthsimple for Business

🌴 20 vacation days, 4 wellness days, and unlimited sick and mental health days per year*

✈️ 90 days away: work outside Canada for up to 90 days per year*

👥 Employee resource groups, including Rainbow (2SLGBTQ), Women of WS, and Black at WS

🌎 We are a hybrid team with over 1,500 employees across North America. The people are one of the best parts of working here: you'll collaborate with incredibly talented, curious, and driven teammates who are deeply committed to doing great work.

*Unlimited paid sick days, Wellness Days and the 90 day away program do not apply to certain roles.

ICYMI

Technology & Innovation at Wealthsimple: We move quickly and build thoughtfully. That means we're always looking for better ways to work — whether that's new tools, AI, or rethinking how we approach a problem. We don't expect you to have all the answers, but we do expect curiosity and a willingness to evolve alongside the products we're building.

Inclusion Statement: We're building products for a diverse world, and we need a diverse team to do it well. We strongly encourage applications from everyone, regardless of race, religion, colour, national origin, gender, sexual orientation, age, marital status, or disability status.

Accessibility Statement: We're committed to an accessible hiring experience. If you need any accommodations throughout the interview process, please let us know — we'll work with you to make sure you have what you need. We also welcome any feedback on how we can better accommodate candidates with accessibility needs.

AI in Hiring: We may use artificial intelligence (AI) tools to support parts of our hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our team but don't replace human judgment – all final hiring decisions are made by people. If you have questions about how your data is used, reach out to us.