Platform Engineer
Marble · Toronto, ON
- On site
- Full-time
- $150,000 / year
- Toronto, ON
Job highlights
- Build and scale AI-first tax platform infrastructure.
- Own reliability, observability, and incident response.
- Design developer tooling and CI/CD pipelines.
- Support scalable data platform needs with security.
- Improve system performance, cost efficiency, and scalability.
About the role
About Us
Marble is building an AI-powered tax assistant and preparation platform that transforms how accounting firms and their clients handle taxes. We’re targeting the pain points of mid-to-large size accounting firms with intelligent tools designed to streamline complex tax workflows. We’re early stage, highly collaborative, and deeply focused on solving real, high-impact problems for our customers.
About The Role
We’re hiring a Platform Engineer to continue building and scaling the infrastructure that powers our AI-first tax platform. You’ll work together with the rest of our engineering team to enable faster product development and build reliable systems that can handle sensitive financial data. This role sits at the intersection of infrastructure, DevOps, and SRE. You’ll design and operate our entire platform, improve developer tooling, and ensure our systems are resilient, observable, and secure by default. You’ll also play a key role in shaping our data platform and enforcing strong data security practices across the stack. If you enjoy interesting technical challenges and automating infrastructure you’ll be a great fit.
What You’ll Do
- Build and operate our cloud infrastructure (100% of our infra is code)
- Own reliability, observability (OTEL), and incident response across our systems
- Design and improve developer tooling and CI/CD pipelines
- Partner with product and data teams to support scalable data platform needs
- Implement and enforce best practices around security, especially for sensitive tax data
- Improve system performance, cost efficiency, and scalability across services
- Be comfortable working across infrastructure, backend systems, and developer workflows
What We’re Looking For
- Strong experience with cloud infrastructure (AWS or similar)
- Hands-on experience with Kubernetes, Terraform, and Helm
- Background in DevOps, SRE, or platform engineering roles
- Experience building and maintaining CI/CD pipelines and/or developer tooling
- Solid understanding of distributed systems, networking, and system reliability
- Ability to balance pragmatism with long-term system design
Bonus Points
- Experience building or supporting data platforms (ETL, orchestration, data infra)
- Familiarity with security best practices in regulated or sensitive data environments
- Experience with observability stacks (Grafana, OpenTelemetry, etc.)
- Experience working in fast-paced startups or 0 → 1 environments
- Exposure to AI/ML infrastructure or data pipelines
Tech We Use
- Cloud: AWS
- Infra: Kubernetes, Terraform, Helm, Github actions (CI/CD)
- Services: Typescript, React, Node.js (Fastify)
- Data: Airflow, Postgres, PostHog
- Observability: Grafana, OpenTelemetry
Why Join Us?
- Build the platform that powers the next generation of AI-driven tax software
- Own critical infrastructure from day one and shape how we scale
- Work on meaningful problems involving data, reliability, and security
- Join a team that values autonomy, speed, and strong engineering fundamentals
- Highly competitive compensation, equity, and benefits
Key skills/competency
- Platform Engineer
- Cloud Infrastructure
- Kubernetes
- Terraform
- DevOps
- SRE
- CI/CD
- System Reliability
- Data Platform
- Security Best Practices
Skills & topics
- Platform Engineer
- DevOps
- SRE
- Infrastructure
- Cloud Engineering
- AWS
- Kubernetes
- Terraform
- CI/CD
- System Reliability
- Data Platform
- Security
- Observability
- Startup
How to get hired
- Research Marble's culture: Study their mission, values, and focus on AI-driven tax solutions.
- Tailor your resume: Highlight experience with AWS, Kubernetes, Terraform, and DevOps/SRE principles.
- Showcase relevant projects: Detail your work on CI/CD, developer tooling, and data platforms.
- Prepare for technical interviews: Be ready to discuss distributed systems, networking, and security.
- Emphasize startup experience: If applicable, highlight your ability to work in fast-paced environments.
Technical preparation
Master AWS services and configurations.,Deepen Kubernetes, Terraform, and Helm knowledge.,Practice CI/CD pipeline design and automation.,Review distributed systems and networking concepts.
Behavioral questions
Describe a complex infrastructure challenge you solved.,How do you ensure system reliability and security?,How do you balance pragmatism and long-term design?,Share an experience improving developer workflows.
Frequently asked questions
- What does a Platform Engineer at Marble do?
- A Platform Engineer at Marble builds and operates the cloud infrastructure for their AI-powered tax platform. This involves ensuring reliability, observability, and security, while also improving developer tooling and CI/CD pipelines. You'll play a key role in shaping the data platform and enforcing best practices.
- What are the key technologies used by Marble's engineering team?
- Marble primarily uses AWS for cloud infrastructure, with Kubernetes, Terraform, and Helm for orchestration and IaC. They also utilize Typescript, Node.js for services, and technologies like Airflow, Postgres, and Grafana for data and observability.
- What experience is essential for the Platform Engineer role at Marble?
- Essential experience includes strong cloud infrastructure knowledge (AWS or similar), hands-on skills with Kubernetes, Terraform, and Helm, and a background in DevOps, SRE, or platform engineering. Experience with CI/CD, developer tooling, and distributed systems is also crucial.
- What are the 'Bonus Points' for a Platform Engineer candidate at Marble?
- Bonus points are awarded for experience building or supporting data platforms, familiarity with security best practices in regulated environments, experience with observability stacks like Grafana/OpenTelemetry, and prior work in fast-paced startups or 0-to-1 environments.
- How does Marble ensure data security for sensitive tax information?
- Marble emphasizes implementing and enforcing best practices around security, particularly for sensitive tax data. This is a key part of the Platform Engineer's role, ensuring the platform is secure by default across the stack.
- What is the work environment like at Marble?
- Marble is described as an early-stage, highly collaborative environment focused on solving high-impact problems. They value autonomy, speed, and strong engineering fundamentals, making it an exciting place for those who enjoy challenging technical work.