Senior Full Stack Engineer

N43 Studio; Toronto; Hybrid; CAD 100,000 - 130,000; Full time

Job summary

A leading venture studio in Toronto is seeking a Senior Full Stack Engineer to join their product team. You’ll collaborate on building a new venture, lead backend and frontend development, and make architectural decisions. The ideal candidate has over 5 years of experience in full-stack web applications, strong Python skills, and knowledge of modern frontend frameworks like React. This hybrid role offers autonomy and the opportunity to shape product development.

Benefits

Flexible, hybrid work

Ground floor of a new venture

Work with experienced operators

Qualifications

• 5+ years of experience building full-stack web applications in startup environments.
• Strong proficiency in Python with frameworks like FastAPI or Flask.
• Proficient with modern frontend frameworks such as React and TypeScript.

Responsibilities

• Lead development across the stack from backend APIs to responsive front-end experiences.
• Collaborate with product and design to prototype, iterate, and ship MVPs.
• Make architectural decisions in partnership with the Principal Architect.

Skills

Full-stack web applications

Python

React

TypeScript

DevOps best practices

Tools

FastAPI

Flask

GCP

Job description

N43 Studio is a venture studio dedicated to building bold, technology-driven companies from the ground up. We identify emerging opportunities, develop ideas into working prototypes, and launch ventures designed to scale.

At N43 Studio, we don’t wait for disruption—we create it. Our team of founders, technologists, and operators turns insight into impact by testing real-world problems, validating solutions fast, and launching startups that matter.

With a deep focus on sectors where innovation can unlock lasting value, we’re building the future one venture at a time. Whether it’s AI-powered tools, novel platforms, or entirely new business models, our companies are built for the world ahead.

About the role

We’re hiring a Senior Full Stack Engineer to join our first product pod and help bring our first venture to life. You’ll work alongside a product manager, front-end engineer, and back-end engineer, supported by a Principal Architect and the studio leadership team. You’ll have autonomy, clear ownership, and the chance to shape both the product and our technical foundations from day one.

What You’ll Do

• Lead development across the stack—from building backend APIs to delivering responsive front-end experiences.
• Collaborate closely with product and design to rapidly prototype, iterate, and ship MVPs.
• Make architectural decisions in partnership with our Principal Architect and define reusable patterns for future pods.
• Write clean, testable code and contribute to code reviews, tooling, and developer experience.
• Participate in user research, pilot programs, and post-launch refinement.

What We’re Looking For

• 5+ years of experience building full-stack web applications, ideally in startup or venture environments.
• Strong proficiency in Python , particularly with modern frameworks like FastAPI or Flask. Experience in other backend languages (e.g., Node.js, Go) is a bonus, but Python is our primary stack.
• Proficiency with modern frontend frameworks such as React and TypeScript .
• Familiarity with cloud infrastructure (GCP preferred) and DevOps best practices.
• Comfort working in high-ambiguity, high-velocity environments with a lean, collaborative team.
• A builder mindset—you’re as comfortable iterating in code as you are thinking about product.

Bonus

• Experience with AI/ML integrations or building products that leverage LLMs.
• Prior experience in early-stage startups or venture studios.
• Familiarity with data infrastructure, observability, or CI/CD setup.

Why Join Us

• Get in on the ground floor of a new venture with institutional backing and a long-term roadmap.
• Build with a team of experienced operators, architects, and product leaders.
• Work on meaningful, complex problems with a bias toward velocity and impact.
• Flexible, hybrid work based out of our studio HQ in downtown Toronto.