Senior Developer, Open Source
Senior Developer · Senior · Full Time · Remote
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Role
What you'll do.
As a Senior Developer on 1Password's Open Source Team, you'll lead the development of agent-integrated IDE plugins and Agent Hooks that enable developers to securely authenticate and access 1Password directly within their development workflows. This role requires ownership of medium-to-large architectural initiatives, community engagement across public repositories, and close collaboration with product and partnership teams to strengthen 1Password's position in the emerging agent-assisted development ecosystem. You'll combine deep technical expertise in modern development toolchains with security-first thinking to build extensible, maintainable systems that serve 180,000+ businesses trusting 1Password for unified access management.
Responsibilities
- Architectural Leadership and Technical Direction: Own architectural decisions for Agent Hooks, IDE plugins, and integrations; establish technical patterns that ensure systems remain scalable, secure, and aligned with 1Password's authentication and security models. Drive decisions on extensibility frameworks, plugin architecture, and integration points across emerging agentic IDE ecosystems.
- End-to-End Feature Delivery: Lead the complete development lifecycle of medium-to-large projects from initial planning, design, and implementation through testing, deployment, and customer support. Deliver high-impact features such as extending Agent Hooks across multiple IDEs and building genuine in-IDE value beyond documentation links.
- Code Quality and Testing Standards: Raise the quality bar across the Open Source Team by identifying and addressing code quality gaps, testing coverage deficiencies, and documentation lapses in community-facing repositories. Anticipate potential problems, report technical risks, and foster a culture of rigorous testing and comprehensive documentation.
- Community Engagement and Open Source Stewardship: Work effectively in public by engaging with external contributors, code reviewers, and the broader open source community. Uphold high quality standards in community-facing repositories, manage public-facing technical communication, and build trust with developers using 1Password's open source tools.
- Roadmap Planning and Technical Opportunity Identification: Contribute to the team's 6-month roadmap by identifying emerging technical opportunities, architectural risks, and platform improvements. Translate product and partnership requirements into actionable technical work aligned with team objectives and 1Password's strategic direction.
- Cross-Functional Collaboration: Ensure seamless alignment with Partnerships, Product, UX, and SDK/CLI teams. Translate cross-functional requirements into clear technical specifications, provide technical insights during product planning, and maintain regular communication with stakeholders on project progress and technical decisions.
- Developer Experience Optimization: Drive initiatives that enhance the developer experience for customers using 1Password on your platforms. Identify and mitigate issues developers face when integrating 1Password with their tools, build smoother workflows for agent-assisted development, and advocate for developer-friendly design patterns.
- Team Culture and Knowledge Sharing: Contribute to a positive, collaborative team environment by modeling best practices, providing constructive code review feedback, documenting architectural decisions, and supporting a culture of shared ownership and continuous learning among team members.
Qualifications
What we look for.
Technical
Modern Development Toolchain Mastery
Advanced, hands-on proficiency with Git, IDEs, terminal/command-line tools, debugging utilities, and testing frameworks. Comfortable reading, writing, and reviewing production code across multiple languages. Strong understanding of version control workflows, CI/CD pipelines, and development best practices.
Extensible System Design
Demonstrated experience designing and implementing extensible, maintainable software systems. Proficiency in architectural patterns such as plugin systems, API design, dependency injection, and component-based architectures. Experience building systems that scale across multiple platforms or integrations.
IDE Extension and Developer Tooling Development
Hands-on experience developing IDE extensions, VSCode plugins, or similar developer tools. Understanding of IDE plugin architectures, lifecycle management, and the constraints of running code within IDE environments. Familiarity with popular IDEs and their extension ecosystems (VSCode, JetBrains, Cursor, etc.).
Open Source Development and Maintenance
Track record of actively contributing to or maintaining open source projects. Experience managing community feedback, triaging issues, reviewing external pull requests, and maintaining high quality standards in public repositories. Familiarity with open source governance models, release processes, and community engagement practices.
Agent-Integrated Development Expertise
Understanding of AI-enabled and agentic IDEs (e.g., Cursor) and the emerging agent-hook ecosystem. Ability to think about developer workflows enhanced by AI agents. Interest in and understanding of how authentication, secrets management, and security apply in agent-assisted development contexts.
Security-First Development Mindset
Deep commitment to security principles consistent with 1Password's approach. Ability to design authentication flows, manage secrets securely, and evaluate security implications of architectural decisions. Experience with identity and access management concepts, OAuth/OIDC, and secure API design.
Education
Bachelor's Degree in Computer Science, Engineering, or Related Field
Formal education in computer science, software engineering, computer engineering, or a related technical discipline, or equivalent professional experience demonstrating mastery of computer science fundamentals.
Experience
Senior-Level Professional Software Development
Significant professional software development experience (typically 7+ years) demonstrating mastery of multiple programming languages, frameworks, and architectural patterns. Proven track record of independently owning and delivering medium-to-large technical projects end-to-end.
Technical Leadership and Architectural Decision-Making
Demonstrated ability to set technical direction, make high-impact architectural decisions, and defend those decisions to diverse stakeholders. Experience leading projects where you owned both vision and execution, and where your technical choices shaped product scalability, security, and quality.
Open Source Project Leadership
Preferred experience maintaining a popular open source project, managing open source community engagement, or contributing to an Open Source Program Office (OSPO). Understanding of how to build trust with and support external contributors.
Developer Tools and Platform Work
Hands-on experience building or significantly contributing to developer tools, build systems, or platform features. Understanding of what makes developer tools intuitive, performant, and reliable in real-world workflows.
Cross-Functional Project Execution
Experience collaborating with product, design, and business teams to align technical work with strategic objectives. Ability to translate business requirements into technical specifications and communicate progress and technical risks to non-technical stakeholders.
Skills
Required
Typescript/JavaScript
Strong proficiency in Typescript and JavaScript for building IDE extensions and cross-platform developer tools. Understanding of async patterns, module systems, and modern ECMAScript features.
Python
Solid proficiency in Python for scripting, tooling, and backend services. Understanding of virtual environments, package management, and Python best practices.
Git and Version Control
Expert-level Git proficiency including branching strategies, rebasing, merging, conflict resolution, and working with remote repositories. Understanding of collaborative workflows and pull request management.
API Design and REST/GraphQL
Experience designing and implementing well-structured APIs, understanding REST principles, HTTP semantics, and optionally GraphQL. Ability to design extensible, versioned APIs that serve multiple client types.
Testing and Test Automation
Expertise in writing unit tests, integration tests, and end-to-end tests. Familiarity with popular testing frameworks and patterns. Understanding of test coverage metrics and strategies for maintaining high test coverage in production code.
Authentication and Security Protocols
Solid understanding of OAuth 2.0, OpenID Connect, JWT, API key management, and secrets handling. Ability to implement secure authentication flows and evaluate security implications of technical decisions.
Preferred
Rust
Nice to haveExperience with Rust for building high-performance, secure systems. Understanding of Rust's ownership model, error handling, and concurrency primitives valuable for systems-level development.
Go
Nice to haveProficiency in Go for building efficient backend services, CLI tools, and cross-platform applications. Understanding of goroutines, channels, and Go's standard library.
VSCode Extension Development
Nice to haveDirect experience building VSCode extensions using the VSCode API. Familiarity with extension activation events, webview APIs, and the VSCode marketplace.
Cursor IDE Ecosystem
Nice to haveHands-on experience with Cursor and the agent-hook specification for integrating 1Password and similar services into agent-assisted development workflows.
Agent Framework Experience
Nice to haveExperience working with or integrating agent frameworks, LLM APIs, or AI-assisted development tools. Understanding of agentic workflows and how external tools integrate with agent decision-making.
Docker and Containerization
Nice to havePractical experience with Docker, container orchestration, and containerized development workflows. Understanding of multi-stage builds and optimization for production deployments.
CI/CD Pipelines and DevOps
Nice to haveExperience building and maintaining CI/CD pipelines using tools like GitHub Actions, GitLab CI, or similar platforms. Understanding of automated testing, deployment strategies, and infrastructure-as-code principles.
Database Design and SQL
Nice to haveProficiency in relational database design, SQL query optimization, and understanding of NoSQL databases when appropriate. Experience with database migrations and schema versioning.
Open Source Program Office (OSPO) Experience
Nice to haveFamiliarity with OSPO functions including license compliance, open source governance, community strategy, and managing internal and external open source dependencies.
Compensation
Pay and benefits.
Base·USD 153,000 – 214,000
Equity·Stock options
Benefits
Health and Dental Coverage
Competitive health and dental benefits package available to all employees from day one of employment.
Retirement Matching Program
401(k) matching program for US-based employees and RRSP matching for Canada-based employees to support long-term financial planning.
Equity Compensation
RSU (Restricted Stock Unit) grants for most employees, providing direct stake in 1Password's continued growth and success.
Generous Paid Time Off
Flexible and generous PTO policy supporting work-life balance and employee wellness across all locations.
Parental Leave Top-Up Programs
Enhanced maternity and parental leave benefits to support employees starting or growing their families.
Free 1Password Account
Complimentary premium 1Password account for all employees and their families, enabling firsthand experience with 1Password products.
Peer Recognition Program
Bonusly peer-to-peer recognition platform enabling team members to celebrate wins and acknowledge exceptional contributions.
Paid Volunteer Days
Dedicated paid time for employees to volunteer with causes they care about, reflecting 1Password's commitment to community impact.
Full posting
Original listing.
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.
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.
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.
How we’re using AI today
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.
This is a remote opportunity within Canada and the US.
What we're looking for:
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.
Demonstrated ability to set technical direction and make architectural decisions that keep products scalable, secure, and high quality.
A track record of working effectively in public, engaging with external contributors and upholding a high quality bar in community-facing repositories.
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.
A security-minded approach consistent with 1Password's principles.
Bonus points for:
Experience maintaining a popular open source project or running open source community engagement.
Familiarity with AI-enabled or agentic IDEs (e.g., Cursor) and the emerging agent-hook ecosystem.
Experience contributing to an Open Source Program Office (OSPO) or similar function.
What you can expect:
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.
Make architectural decisions that keep our integrations and public repositories scalable, secure, and aligned to 1Password's existing security and authentication models.
Contribute to the team's roadmap by identifying technical opportunities and risks up to ~6 months out, then lead execution aligned to team objectives.
Raise the quality bar by identifying lapses in code quality and gaps in testing coverage, anticipating and reporting potential problems, and fostering a high standard of documentation across community-facing repositories.
Ensure alignment with cross-functional partners (Partnerships, Product, UX, and the SDK/CLI teams), translating requirements into actionable work.
Drive initiatives that better support 1Password customers on your platform and mitigate issues developers face.
Contribute to a positive, collaborative team environment by modeling best practices, providing constructive feedback, and supporting a sense of shared ownership.
USA-based roles only: The annual base salary for this role is between $153,000 USD and $214,000 USD, plus immediate participation in 1Password's benefits program (health, dental, 401k and many others), utilization of our generous paid time off, an equity grant and, where applicable, participation in our incentive programs.
Canada-based roles only: The annual base salary for this role is between $144,000 CAD and $202,000 CAD, plus immediate participation in 1Password’s generous benefits program (health, dental, RRSP and many others), utilization of our generous paid time off, an equity grant and, where applicable, participation in our incentive programs.
At 1Password, we approach each individual's compensation with a promise of fair market value and internal equity commensurate with experience and specific skill set.
This posting is for an existing vacancy.
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 ambiguity and through change, are curious, and above all deliver results.
How we work with AI
We are committed to leveraging cutting-edge technology—including AI—to achieve our mission. We also understand that thinking critically about AI in its current forms will help us create better solutions for our customers and ourselves with its future forms, which will help us continue to close the gap between security and privacy and achieve our mission. We want team members at all levels to take the approach of actively learning AI best practices, identifying opportunities to apply AI in meaningful ways, and driving innovative solutions in their daily work. Embracing the future of AI isn't just encouraged—it's an essential part of how we will be successful at 1Password.
This approach extends to our hiring process—candidates are welcome to use AI tools responsibly and thoughtfully during the application process.
Our approach to remote work
We believe in the power of remote work, but recognize that in-person connection is important to help us achieve our mission. While we are a remote-first company, travel for in-person engagement is a part of almost all roles, and we require our employees to be ready and willing to take part. Frequency will depend on role and responsibilities, and may include, but is not limited to: annual department-wide offsites, team meetings, and customer/industry events.
What we offer
We believe in working hard, and rewarding that hard work through our benefits. While not an exhaustive list, here is a glance at what we currently offer:
Health and wellbeing
👶 Maternity and parental leave top-up programs
🩺 Competitive health benefits
🏝 Generous PTO policy
Growth and future
📈 RSU program for most employees
💸 Retirement matching program
🔑 Free 1Password account
Community
🤝 Paid volunteer days
🏆 Peer-to-peer recognition through Bonusly
🌎 Remote-first work environment
*Some roles in our GTM team are currently being hired for in-person hybrid work in Toronto and Austin. These roles will specify on the posting.
You belong here.
1Password is proud to be an equal opportunity employer. We are committed to fostering an inclusive, diverse and equitable workplace that is built on trust, support and respect. We welcome all individuals and do not discriminate on the basis of gender identity and expression, race, ethnicity, disability, sexual orientation, colour, religion, creed, gender, national origin, age, marital status, pregnancy, sex, citizenship, education, languages spoken or veteran status. Be yourself, find your people and share the things you love.
Accommodation is available upon request at any point during our recruitment process. If you require an accommodation, please speak to your talent acquisition partner or email us at [email protected] and we’ll work to meet your needs.
Remote work is a part of our DNA. Given that our company was founded remotely in 2005, we can safely say we're experts at building remote culture. That said, remote work at 1Password does mean working from your home country. If you've got questions or concerns about this, your talent partner would be happy to address them with you.
Successful applicants will be required to complete a background check that may consist of prior employment verification, reference checks, education confirmation, criminal background, publicly available social media, credit history, or other information, as permitted by local law.
1Password uses artificial intelligence (AI) and machine learning (ML) technologies, including natural language processing and predictive analytics, to assist in the initial screening of employment applications and improve our recruitment process. See here for the latest third party bias audit information. If you prefer not to have your application assessed using AI/ML features, you may opt out by completing this form. For additional information see our Candidate Privacy Notice.
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