Senior Developer, Open Source

Responsibilities

• 1Password is growing. We’ve surpassed $400M 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.
• 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.
• We are seeking a Senior Developer on our Open Source Team, focused on strengthening 1Password's open source posture and making our developer tools easy to use directly inside developers' workflows through agentic IDE integrations: our Agent Hooks and IDE plugins. You'll serve as a technical leader on the team, owning architectural decisions and driving cohesive execution on medium-to-large projects, from initial planning through development and into customer support.
• Our Engineering, Product, and Design teams are thoughtfully integrating AI across the full software and product development lifecycle to move faster without sacrificing quality or security. In practice, that looks like engineers using AI-assisted coding tools to accelerate reviews and catch bugs earlier, product managers synthesizing user research at scale, and designers rapidly prototyping and iterating with AI-generated mockups. We approach AI the same way we approach security: with clear principles, human accountability at every consequential decision point, and rigorous evaluation before anything ships to customers.
• Significant professional software development experience, with a track record of independently owning and delivering medium-to-large technical projects end to end.
• Advanced, hands-on command of a modern development toolchain (Git, IDEs, terminal, debugging and testing tools) and the languages relevant to the team's work; comfortable reading, writing, and reviewing others' code.
• Experience designing extensible, maintainable systems, ideally developer tooling, IDE extensions, agent integrations, or actively maintained open source projects.
• Interest in agent-assisted development and building tools to make agent-assisted development smoother and more secure.
• Excellent written and verbal communication skills, with the ability to make a project's impact and progress visible to engineering, product, and design stakeholders.
• Contribute large new features, significant product improvements, and critical bug fixes, such as extending our Agent Hooks across IDEs or building genuine in-IDE value beyond links to external docs.

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