Senior Software Engineer, Ads
Confirmed on the employer's own hiring board on Oct 26, 2026. First seen by Alion on Oct 21, 2025. Reddit scores B on the Alion truth index.
Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com.
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Team Description
Reddit is poised to rapidly innovate and grow like no other time in its history. We’re currently hiring across three distinct teams:
Ad Safety & Verification Team
The mission of the Ads Safety & Verification team is to protect the Reddit ads ecosystem so that users have a safe ads experience and legitimate advertisers trust Reddit. This team builds full stack, high scale products that span Reddit’s consumer-facing apps and ads systems. They own integrations with metrics verification and brand safety partners and operate services that scale to reliably handle tens of millions of requests per day.
Ads Creative Management (ACM) Team
The Ads Creative Management team focuses on the tools and systems advertisers use to create and manage their ad content. From images and videos to headlines and full post creatives, they enable efficient creative management and innovation across the campaign lifecycle. They work closely with AI teams to provide intelligent content suggestions and automation, helping advertisers launch high-quality campaigns faster and more effectively.
Brand Innovation Team
The Brand Innovation team drives the development of new ad formats that help advertisers maximize reach and brand impact. They focus on high-visibility, awareness-driven solutions that create memorable experiences for Reddit users. By delivering guaranteed placements and engaging ad interactions, they support major brand initiatives and help advertisers achieve measurable outcomes. Their work includes evolving existing formats and launching entirely new ones to keep Reddit’s ad offerings fresh and competitive.
Role Description:
This is a generalist mid-level backend position within the Ads Organization. Ads is the fuel that powers Reddit’s mission. As a backend engineer on the team, candidates might work on:
- Microservices and APIs that power our advertiser-facing product, ads.reddit.com
- Distributed systems that ensure the right ad gets shown to the right user at the right time
- Backends that power interactive user experiences on our ads like Polls and Games
- Real time, data intensive systems that measure the performance of our ad campaigns
- Infrastructure that supports all of the above
Technologies used on the team include:
- Languages: Go, Python, Scala
- Frameworks: Spark, Thrift, Baseplate, Kafka
- Datastores: Postgres, BigQuery, Redis, Druid
- Tools: Kubernetes, Argo, Docker
Mid-level engineers are expected to absorb best practices and learn exceptionally quickly while being effective core contributors. Engineers at this level must be able to code independently, but may work with senior engineers on the design of complex solutions. The most important skills an engineer at this level must possess are 1) coachability and an eagerness to grow, 2) deep passion for coding, and 3) excellent independent learning skills, all while operating as a fully functioning member of an engineering team.
Responsibilities:
- Work with product managers to design and implement Ads products.
- Collaborate closely with the platform and data teams while building new features.
- Lead the processes needed to improve operational stability, including improving code quality, delivering dashboards and data visualizations.
- Build extensible components that would align with the product objectives.
- Support day to day project management tasks including communicating project updates, managing project timelines and overseeing project execution.
Required Qualifications:
- 3+ years of software development experience in one or more general purpose programming languages (Java, Scala, Go, C++, Python).
- Able to take complete ownership of a feature or project.
Bonus Points:
- Experience working in the Ads domain
- Experience or interest in the advertising business and understanding customer needs
Benefits:
- Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
- Family Planning Support
- Gender-Affirming Care
- Mental Health & Coaching Benefits
- Comprehensive Medical Benefits & Health Care Spending Account
- Registered Retirement Savings Plan with matching contributions
- Income Replacement Programs
- Flexible Vacation & Paid Volunteer Time Off
- Generous Paid Parental Leave
In select roles and locations, the interviews will be recorded, transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out of recording, transcription and summarization prior to any scheduled interviews.
During the interview, we will collect the following categories of personal information: Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share with us. We will use this information to evaluate your application for employment or an independent contractor role, as applicable. We will not sell your personal information or disclose it to any third party for their marketing purposes. We will delete any recording of your interview promptly after making a hiring decision. For more information about how we will handle your personal information, including our retention of it, please refer to our Candidate Privacy Policy for Potential Employees and Contractors.
Reddit is proud to be an equal opportunity employer, and is committed to building a workforce representative of the diverse communities we serve. Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If, due to a disability, you need an accommodation during the interview process, please let your recruiter know.