Senior Backend Engineer

Who We Are

Hi, we're Duck Duck Go , the online protection company and remote-first team of 300+ on a mission to raise the standard of trust online. Founded in 2008 and profitable since 2014, annual revenue now exceeds $100m USD and millions use our browser on Mac, Windows, iOS, and Android, our search engine, and the Duck Duck Go  subscription. Our culture of trust, inclusivity, and empowered project management underpins everything we do, where each team member takes full ownership of their projects, from scoping and execution to postmortem.

If you're seeking end-to-end ownership of your work — you've come to the right place!

Working on the Backend Functional Team, you'll lead complex projects across key company-wide objectives. Using Perl (Version
5), Go, and Node.js, you’ll write pragmatic, performant, testable code that works consistently, and work on related projects. Recent projects include:

• Implementing AI-assisted answers and integrating them into our Search product while maintaining our privacy-first approach
• Delivering improvements to Duck.ai to help us make it a competitive AI chat alternative for both free and paying users
• Implementing sophisticated data processing pipelines that maintain search relevancy

As a Senior Backend Engineer, you'll collaborate remotely with your peers and take responsibility for solving product issues impacting our all-in-one privacy solution, whether large or small. In time, you'll formally mentor other engineers, supporting their career growth and the growth of the Backend Team at Duck Duck Go .

• 7+ years of professional experience, primarily focused on backend systems that power consumer-facing products
• Product acumen to reason about technical tradeoffs in terms of user impact
• Familiarity with AI agent tooling: evaluation frameworks, RAG pipelines and prompt engineering
• A fundamental understanding of complex data structures and algorithms — you can develop and apply new solutions and confidently navigate and improve existing code.
• Data-driven analytical skills for decision-making, stakeholder alignment, and experiment-oriented delivery
• Solid project management abilities
• Excellent written and verbal communication to validate and articulate decisions
• Previous experience leading and mentoring experienced engineers, supporting their career goals, and unlocking their potential.

$178,500 USD annually and stock options. Compensation is identical within professional levels, regardless of geographic location or team. Compensation for each professional level is transparent across the organization.

Eligibility for company-sponsored health benefits is limited to team members based in the United States. This program does not extend to team members located in other countries, such as Canada or the UK.

Our Team Member Support Guide explains how we prioritize your wellbeing including paid parental leave, office setup, and co-working allowances.

Hiring works best when it's a two-way street. Learn how we help you get to know Duck Duck Go , envision your future role here, and find out more about how we hire.

Duck Duck Go  provides equal work opportunities to all team members and applicants, and it prohibits discrimination and harassment of any type on the basis of race, color, ethnicity, caste, religion, age, sex (including pregnancy), national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by our policies or federal, state, or local laws.

We want to ensure that our hiring process is accessible. If you need reasonable accommodation for any part of the application process because of a medical condition or disability, please email  to let us know the nature of your request.

• You’ll be required to attend meetings on camera via video conferencing
• Expect to travel at least two times a year: once for our all-hands meetup and again for a team retreat (each around 4-5 days). While extenuating circumstances may impact attendance, everyone is strongly encouraged to attend.
• While we offer a flexible…