Senior Backend Engineer, Growth Onboarding

Reddit has a flexible workforce!  If you happen to live close to one of our physical office locations our doors are open for you to come into the office as often as you'd like. Don't live near one of our offices? No worries: You can apply to work remotely in any country in which we have a physical presence.

The Growth - Onboarding Engineering team sits at the intersection of engineering and product, focused on driving user growth, engagement, and retention across Reddit.  We own the onboarding experience that connects users to authentic conversations on the platform – starting from their first logged-in session. Think personalized recommendations, onboarding flows, sign up and authentication, user education and A/B testing at scale – we're the engine behind the numbers. As a Senior Engineer on this team, you're not just building—you're shaping the architecture and strategic direction. We're a team with a culture of ownership, continuous learning, and a deep commitment to data-informed decision making. We highly value autonomy and encourage engineers to take initiative and drive impactful projects from start to finish.

As a Senior Backend engineer on the Growth - Onboarding team, you will:

Responsibilities:

• Execution: Write clean, well tested, maintainable code that adheres to best practices.
• Drive Strategic Initiatives: Proactively identify and champion strategic engineering initiatives to improve growth infrastructure and processes.
• Experimentation Advocate: Work closely with Product, Data Science, and other teams on Growth to define, design, and implement impactful experiments. Champion best practices in experimentation methodology.
• Data-Driven Optimization: Leverage data to identify opportunities for improvement and optimization across the user lifecycle. You'll be analyzing metrics, identifying trends, and collaborating to implement solutions.
• Collaboration & Innovation: Participate in design reviews, contribute to architectural decisions, and actively seek opportunities to improve our processes and tooling.
• Technical Leadership: Mentor and guide junior engineers, providing technical guidance, code reviews, and fostering a culture of excellence.

Required Qualifications:

• 5+ years of experience as a software engineer with recent experience in a Senior role
• Experience executing on large scale projects from 0 to 1
• Strong Architectural Experience: Demonstrated ability to design and implement complex architectures, making key technology decisions.
• Technical Expertise: Deep understanding of backend technologies, including Golang (preferred), distributed systems, databases (SQL and NoSQL), and cloud platforms (AWS preferred).
• Excellent communication skills. You must be able to collaborate effectively with teams in a remote environment, and discuss complex topics with technical and non-technical audiences.
• Experience with A/B testing frameworks and experimentation platforms.

Preferred Qualifications:

• Growth Engineering - Industry experience
• Experience with LLMs and generative AI

Benefits:

• Comprehensive Healthcare Benefits and Income Replacement Programs
• 401k Match
• Family Planning Support
• Gender-Affirming Care
• Mental Health & Coaching Benefits
• Flexible Vacation & Reddit Global Days off
• Generous paid Parental Leave  
• Paid Volunteer time off

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