Job Description

Member of Technical Staff (Applied AI Engineer)
Location: Toronto

Onsite | Full-time

Compensation: $140K - $260K

We are building the open-source browser infrastructure that powers the next generation of AI agents and applications. By providing a high-performance Sessions API, we enable developers to build products that interact with the web as seamlessly as humans do.

After growing our platform 50x in 2025 through pure word-of-mouth and a vibrant open-source community (6,000+ GitHub stars), we are looking for an engineer to help us define the frontier of browser automation. We are a small, talent-dense team backed by world-class investors, and we move with high intensity to shape the future of the internet.

The Role

You will sit at the intersection of product, research, and community. This isn't a traditional ML role or a pure DevRel role—it’s both and neither. You will be the bridge between AI agent builders and our core infrastructure, working directly with the founding team to define what gets built.

You will run experiments to determine what actually works for browser automation with AI, then turn those insights into frameworks, research, and content that developers love. We work hard, move fast, and expect the same intensity from our team; late nights and weekend work are part of the journey when building something exceptional.

Key Responsibilities

• Building a TypeScript browser agent framework that integrates LLMs with our core infrastructure.
• Running experiments to identify which models (GPT-4, Claude, Gemini) and prompting strategies work best for complex web tasks.
• Creating open-source demos and integrations with frameworks like LangChain, CrewAI, and emerging agent platforms.
• Writing technical blog posts and publishing research that establishes our team as the authority on browser agents.
• Partnering with our Growth Lead to turn experiments into content that drives developer adoption.

Requirements

• Experience: 4+ years of engineering experience with a track record of shipping production AI agents (e.g., web scraping, form filling, research automation).
• AI Literacy: Deep understanding of current LLMs, frameworks, and techniques. You can evaluate tradeoffs between models quickly.
• Tech Stack: Strong proficiency in TypeScript/JavaScript and Python Experience with React, Node.js, and browser-level automation is a major plus.
• Open Source: You are "open-source native"—you’ve contributed to or maintained OSS projects and understand how to build community around code.
• Communication: You enjoy teaching others. You are comfortable writing blog posts, recording demos, and engaging with the developer community.
• Mindset: You ship in months, not years. You are comfortable with a high-intensity startup environment and love owning things end-to-end.

Nice-to-haves:

• Experience as a founder or early employee at an AI-first company.
• An active presence in AI/ML communities (X, GitHub, Discord).
• Experience building developer tools that gained significant community adoption.

Benefits

• Compensation: Competitive salary range of $140K – $260K + founding team-level equity (Employee #5-7).
• Healthcare: Comprehensive health and dental insurance for you and your family.
• Impact: Solve deeply technical problems in distributed systems, virtualization, and browser automation.
• Tools & Environment: Brand-new laptop setup, gym membership subsidies, and regular team events/off-sites.
• Growth: Work directly with a fast-paced technical founding team shipping high-impact work daily.
  
  

Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search.

Commitment to Equality and Accessibility:

At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city.

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