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Senior Security Engineer
$140k – $180k/yr US remote full time senior Apr 8, 2026
About this role
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 Security Engineer at Bitwarden, you will be responsible for conducting purple team testing, including threat research and analysis, penetration testing, code audits, security validation testing, and cryptography reviews against Bitwarden’s products and services. In addition, you will be part of the security findings response team, and assist with external inquiry and report response, investigation, and triage. Additional responsibilities include assisting with remediation of any security issues that are identified during internal or external testing and assessments while working alongside our engineering and security operations team members to ensure Bitwarden platform and services are secure and resilient.
We’re looking for someone who is a self-starter with highly technical skills overlapping offensive and defensive capabilities. The right candidate will have experience using security and vulnerability management tools and solutions to detect and prevent cyber-related vulnerabilities in the company's services and networks as well as to any mobile and Internet-facing applications, systems and environments.
This is an all-remote team and we are looking for someone located in the U.S. We do not offer visa sponsorship at this time.
RESPONSIBILITIES
Research emerging threats across the surface web, dark web, and deep web
Build threat models, conduct threat hunts, and plan and execute purple team engagements
Coordinate internal red team testing operations that emulate a threat actor
Collaborate with application development teams, platform engineers, and Security Operations Center (SOC) engineers to improve our offensive and defensive security controls
Contribute to vulnerability testing and analysis as well as incident response and analysis
Include testing for web, mobile, CLI, and desktop application security issues across our multi-product portfolio, including Bitwarden Password Manager, Secrets Manager, and Passwordless.dev, our APIs, serverless functions, and database
Participate in code reviews, learning and spreading technical knowledge about security posture
Contribute to resolutions for security-related issues
Coordinate technical validation and leadership review of purple team reports detailing testing results and potential areas of improvement
Conduct internal penetration tests on systems and networks to determine realistic threat vectors
Manage software tools for code scanning, vulnerability identification, and finding reporting
Effectively communicate findings, attack paths, and recommendations to stakeholders
Train others on the adversary simulation tactics and procedures used
Stay informed on current security trends, publications, and advisories
Assist to provide guidance and subject matter expertise as it pertains to all areas of security and technical operations, including analysis of our cloud environments, security testing and documentation, as well as investigations, software research, new technology, services and tools research, and vendor security analysis
WHAT YOU BRING TO BITWARDEN
Experience with Penetration Testing Tools, such as Burp Suite, NMAP, Nessus, Metasploit, Kali Linux, SQLMap, Owasp ZAP, and manual testing tools
In-depth knowledge of leading vulnerability management tools and strategies
In-depth understanding and usage of application security testing technologies is a plus
Understanding of authentication concepts, including OpenIDConnect, SAML, OAuth, and SSO flows
Strong working knowledge of vulnerability management tools, data and network security technologies
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
Ability to maintain discretion, handle sensitive information, and maintain security best-practices
Security purple team technocrat at heart, staying current with trends and new technologies
NICE-TO-HAVES
User of Bitwarden
Experience with C# and TypeScript, the core two languages used to build the Bitwarden platform
Experience in the SecOps world and ability to apply security best practices across the organization
Experience working in cloud-focused environments
WHAT TO EXPECT IN THE INTERVIEW PROCESS
Selected candidates will be invited to schedule an introduction call and potentially progress through the following stages:
Interview with Principal Architect
Interview with lead engineers
Interview with CTO
Reference calls
Successful candidates will be asked to authorize and complete a background check. We do not discriminate based on having a criminal record, and we encourage candidates to be open with us about anything that may come up on the report, so we can discuss in advance and determine impact on the role and company.
A FEW REASONS TO WORK WITH US
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 in a growing market. You’ll get immersed in the prominent technology markets of security and open source software.
Learn and grow professionally. Embrace the opportunity to build up your demand generation and product-led growth expertise in a fast-growing startup.
We are dedicated to building a diverse and talented team. Work remotely with motivated and supportive team members across the world.
In the United States, the starting base compensation range for this role is $140,000 - $180,000. Actual compensation may vary based on level, relevant experience, and skill set as assessed in the interview process, as well as market data by location. See our careers page for a list of benefits. Please note that compensation outside the U.S. will differ based on the market. Offices: Remote (Remote);