Senior Fullstack Developer on Stay22's Neuro team designing and building robust backend systems. Focused on AI/ML infrastructure for applications that enhance monetization for digital creators.
About the role
- Senior Developer architecting CI/CD systems to enable secure software deployment in Wealthsimple's fintech platform. Collaborating with a diverse engineering team to optimize deployment processes.
Responsibilities
- Evolve progressive delivery with Argo Rollouts and GitOps.
- Optimize CI/CD infrastructure at scale.
- Build deployment gates and guardrails that prevent production incidents.
- Build world-class deployment observability and visibility.
- Drive Wealthsimple's 2026 reliability mission.
- Pioneer continuous, automated load testing.
- Champion engineering excellence and mentorship.
Requirements
- 7+ years of experience in team-based software development, with strong focus on platform engineering, DevOps, CI/CD, or SRE.
- Deep expertise in modern deployment and orchestration, including Kubernetes, GitOps workflows (ArgoCD or similar), progressive delivery, and strategies such as canary and blue-green deployments with automated rollbacks.
- Strong CI/CD experience: designed, built, and operated deployment pipelines using Buildkite, GitHub Actions, Jenkins, GitLab CI, or similar; experience optimizing build times, managing artifacts, and ensuring pipeline reliability at scale.
- Reliability engineering and observability expertise, including building observable systems with Datadog, Prometheus, or similar tools; solid understanding of SLIs, SLOs, and error budgets.
- Technical versatility across multiple languages, with experience in TypeScript, Ruby, Python, Kotlin, or similar; comfortable writing tooling, automation, and infrastructure code.
- Load testing and performance validation experience, using tools such as k6, JMeter, or Gatling, and interpreting results to inform deployment decisions.
- Infrastructure as Code and cloud experience, including AWS, Terraform, or comparable platforms and tools; ability to build reproducible, version-controlled, scalable infrastructure.
- Product mindset for internal platforms, treating deployment infrastructure as a product and internal developers as customers.
- Strong collaboration and mentorship skills, with experience coaching engineers and communicating technical concepts across teams.
- Data-driven approach, using metrics to establish baselines, measure impact, and guide technical decisions.
Benefits
- Top-tier health benefits and life insurance
- Long-term group savings with employer match using our Wealthsimple for Business platform
- 20 vacation days + 4 wellness days per year, and unlimited sick and mental health days
- 90 days away program: Employees can work outside of Canada for up to 90 days per calendar year
- A wide variety of peer and company-led Employee Resources Groups (e.g., Rainbow, Women of Wealthsimple, Black @ WS)
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