Senior Developer, Billing Platform

The Billing & Payments Engineering team builds and owns the mission-critical systems that power 1Password's revenue engine end-to-end. We are responsible for the highly available architecture that enables seamless subscription management, complex payment processing, and global financial compliance. From managing the intricate logic of the subscription lifecycle-creations, renewals, upgrades, and cancellations-to integrating with diverse payment gateways and app-store ecosystems, our work ensures a frictionless experience for our customers. As a team, we are actively architecting the next generation of our billing infrastructure, modernizing and consolidating our systems to support rapidly scaling product lines, guarantee absolute data integrity, and ensure robust integrations with downstream financial workflows. In this role, you'll design, build, and operate reliable backend services while owning complex initiatives from initial design through production. Your work will help create a safer, simpler digital future by making it easier for customers to access and rely on 1Password. 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: - Demonstrated expertise in engineering robust backend architectures using Go, alongside a history of taking end-to-end ownership of complex initiatives from initial design to live production deployment - A drive for and proven experience in software development best practices, and coding standards - You enjoy solving complex problems with a demonstrated ability propose effective solutions - You like communicating and collaborating and can demonstrate experience in working effectively with team and communicating technical concepts to non-technical cross-functional partners - You're passionate about testing methodologies and debugging techniques to ensure high-quality code Bonus points for: - Billing & Payments: Experience building or maintaining billing, payment processing, or subscription platforms (e.g., Stripe, native app stores). - Distributed Systems: A strong background in designing and scaling highly available, fault-tolerant distributed architectures. - API Integrations: Proven ability to build resilient integrations with third-party APIs, including handling webhooks, retries, and strict idempotency. What you can expect: - Code, test, debug, deliver and maintain production software systems for new and existing product features - Collaborate with cross functional teams and/or stakeholders throughout the development cycle to ensure smooth releases - Work with your teammates and project manager to communicate technical requirements to stakeholders and solve technical problems in a scalable and realistic way - Mentor junior and new team members by helping them understand team expectations, providing technical guidance, sharing knowledge, and engaging in pair programming sessions - Participate in planning by identifying major tasks and breaking down, estimating, and planning work - Write comprehensive tests during various stages of the development cycle, ensuring code is functioning as expected - Review code for others to maintain high code quality, knowledge share within the team, and support creating a safe environment of giving and receiving feedback - Generate and review documentation on code processes to ensure scalability - Stay informed about the latest industry trends, technologies, and best practices in development - Be available for on-call rotational work to ensure uninterrupted support and resolve emergencies 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.