Developer Intern, Extension Excellence - Winter 2027

1Password is growing. We’ve surpassed $500M in ARR and we’re continuing to accelerate, earning a spot on the Forbes Cloud 100 for four years in a row and teaming up with iconic partners like Oracle Red Bull Racing.

About 1Password

At 1Password, we’re building the foundation for a safe, productive digital future. Our mission is to unleash employee productivity without compromising security by ensuring every identity is authentic, every application sign-in is secure, and every device is trusted. We innovated the market-leading enterprise password manager and pioneered Unified Access Management, a new cybersecurity category built for the way people and AI agents work today. As one of the most loved brands in cybersecurity, we take a human-centric approach in everything from product strategy to user experience. Over 180,000 businesses, from Fortune 100 leaders to the world’s most innovative AI companies, trust 1Password to help their teams securely adopt the SaaS and AI tools they need to do their best work.

If you're excited about the opportunity to contribute to the digital safety of millions, to work alongside a team of curious, driven individuals, and to solve hard problems in a fast-paced, dynamic environment, then we want to hear from you. Come join us and help shape a safer, simpler digital future.

Browser Extension Excellence owns the foundation that supports 1Password’s browser extension, our most-frequently used client surface. This includes architecture, health monitoring, build and test pipelines, developer tooling, cross-browser compatibility, and setting new standards within the WECG. We investigate production incidents, improve load and runtime performance, and guide the extension through changes such as Manifest V3 and browser version deprecations.

This is a remote opportunity within Canada/US. This position will be for 4 months - January to April 2027.

What You Can Expect:

• Write efficient, scalable, and robust customer-facing features in one or more of our web or Rust tech stacks.

• Collaborate with people across the company like Product, Design, Customer Support, Release Ops, and other Software Development teams.

• Focus on building and optimizing features in our extension as well as working with browser-specific APIs and behaviors (Chrome, Safari, Firefox, Edge)

• Focusing on extension performance, stability, and correctness

What we're looking for:

• Confidence: A willingness to take on new challenges, and see them through to completion.

• Humility: You're not afraid to ask "stupid" questions and make mistakes (as long as you learn from them).

• Curiosity: You look for better ways of doing things, even if everyone seems happy with how they are.

• Teamwork: We work together, and succeed as a team!

Bonus points for:

• Experience or interest in working with browser extensions

• Someone interested in working in multiple tech stacks.

• Strong communication skills, both written and verbal. We’re a distributed team so written communication in particular is very crucial.

• Someone who thinks about the impact of their work in terms of the end user.

Our culture 

At 1Password, we prioritize collaboration, clear and transparent communication, receptiveness to feedback, and alignment with our core values: keep it simple, lead with honesty, and put people first.

You’ll be part of a team that challenges the status quo, and is excited to experiment and iterate in search of the best solution. That said, 1Password is not for everyone. Our work is demanding, we strive for excellence, and the pace is fast. We need people who are keen to take on challenging problems, who seek feedback to grow, and who are driven to make an impact. If you're looking for a place where you can settle into a comfortable routine, this might not be the right fit for you. We’re looking for individuals who are proven experts in their fields, as well as those who are highly adaptable, can thrive in am...