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Senior Software Development Engineer in Test (SDET)

at Bitwarden in Engineering
Remote, U.S.

Bitwarden empowers enterprises, developers, and individuals to securely store and share sensitive data. With a transparent, open-source approach to password management, secrets management, and passwordless and passkey innovations, Bitwarden makes it easy for users to extend robust security practices across all online activities. Founded in 2016 with headquarters in Santa Barbara, California, Bitwarden is supported by a passionate global community of security experts and enthusiasts. 

As a Senior Software Development Engineer in Test at Bitwarden, you will contribute directly to the future of the Bitwarden product across mobile, web and server components while working with a great team and amazing open source community. We’re looking for someone who can help our team grow confidently by creating a suite of automated regression tests, help facilitate a total quality approach to software development and delivery, as well as establish guidelines and processes around the testing of community and internal product contributions.

This is an all-remote team and we’re looking for someone located in the U.S. We do not offer visa sponsorship at this time. 


  • Develop and maintain automated test scripts for web, browser extension, mobile, desktop, and CLI applications using C# and Selenium/Appium frameworks.
  • Design and implement robust test automation frameworks to support various application types, ensuring scalability, reusability, and maintainability.
  • Collaborate with development and QA teams to understand requirements, identify test scenarios, and automate test cases to ensure comprehensive test coverage.
  • Conduct code reviews of test automation scripts to ensure adherence to coding standards, best practices, and maintainability.
  • Execute automated tests and analyze results to identify defects, performance issues, and areas for improvement.
  • Participate in Agile/Scrum ceremonies to provide updates on test automation progress, discuss blockers, and plan testing activities for upcoming sprints.
  • Identify and implement opportunities for test automation to improve efficiency, reduce manual testing efforts, and increase test coverage.
  • Contribute to the continuous integration and delivery (CI/CD) pipeline by integrating automated tests and ensuring their successful execution in build pipelines.
  • Collaborate with cross-functional teams to troubleshoot and resolve automation-related issues in different application environments.
  • Stay updated with the latest automation trends and technologies to continuously improve test automation strategies and practices.
  • Document test automation frameworks and processes to facilitate knowledge sharing and ensure maintainability.
  • Provide mentorship and guidance to junior team members on test automation best practices, coding standards, and frameworks.


  • Strong proficiency in C# programming
  • Strong understanding of mobile testing using Appium
  • Experience setting up and maintaining CI/CD pipelines
  • Experience with remote testing using tools such as Sauce Labs, Browser Stack, etc
  • Solid understanding of software testing principles and methodologies
  • Experience with AI and machine learning (nice to have)
  • Collaborative and adaptable mindset
  • Openness and authenticity combined with excellent communication skills
  • Excitement and enthusiasm for open source and for better internet security 
  • Excellent problem-solving skills – you might not know all the answers, but you know how to find and communicate the solution


Selected candidates will be invited to schedule an introduction call and potentially progress through the following stages:

  • Interview with hiring manager
  • Interview/s with team members
  • Reference calls
  • Interview with department leader


  • Our user community loves us and we love them. Come to work each day with a sense of purpose as we bring a more secure internet experience to everyone from our friends and family to the world’s largest organizations.
  • Become an expert. You’ll get immersed in the prominent technology markets of security and open source software.
  • We are dedicated to building a diverse and talented team. Work remotely with motivated and supportive team members across the world and take part in productive and fun meetups.
  • Learn and grow. Take on new challenges with the support of your team, and join our #growth-club to continue personal and professional development. 

We recognize and understand that people come with a wealth of experience and talent beyond just the technical requirements of a job. If you don’t meet 100% of the qualifications for the position, you should still consider applying. Diversity of experience and skills combined with passion is a key to innovation and excellence; therefore, we encourage people from all backgrounds to apply. Please let us know if you require accommodations during the interview process.

A note to outside sourcers: We do not accept solicitations from recruiters, recruiting agencies, headhunters, or outsourcing organizations. Please remove us from all such contact lists. 

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