Software Engineer, Ads

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 101M+ daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit redditinc.com.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.Team DescriptionReddit Is Poised To Rapidly Innovate And Grow Like No Other Time In Its History. We’re Currently Hiring Across Multiple Teams, Some Of These Teams IncludeAds ML Serving TeamThe Ads ML Serving team is part of Reddit’s Ads ML Platform, which builds the infrastructure and tools that power machine learning across Ads. This team focuses on creating a highly reliable, scalable, and efficient ML serving stack. Their work includes evolving long-term serving architecture, integrating closely with the ads serving stack, optimizing CPU/GPU performance, and building model velocity tools like observability libraries and model quality gating.Attribution & Identity TeamThe Attribution & Identity team builds products that help advertisers understand and measure the impact of their campaigns. They focus on attribution systems, identity solutions, and advertiser experimentation tools that improve performance insights and usability. Their goal is to make Reddit’s advertising platform more effective, transparent, and data-driven.Ads Growth TeamThe Ads Growth team drives initiatives to expand Reddit’s advertiser base, with a focus on Small to Medium Businesses (SMBs). We build and scale the technical foundation for key product pillars that enable SMB advertisers to succeed on Reddit. Our work spans collaboration with product, design, marketing, data science, UX, and sales teams to deliver measurable business outcomes.We prioritize iterative development, rapid shipping, rigorous testing, and building capabilities that create step-change growth. Our goal is to multiply the number of monthly active advertisers by delivering impactful tools, features, and experiences tailored to the needs of SMBs.Business ManagerThe Business Manager team stands out for its genuinely inclusive and collaborative culture, where not only is open feedback central, but every opinion and idea is truly valued and given space to shape our direction. Here, diverse perspectives are seen as a core strength, fostering a team dynamic where everyone feels empowered to contribute and innovate. On a day-to-day basis, engineers tackle complex, high-stakes challenges at the core of Reddit’s ads platform which include innovating on permissions systems, building Agency and Large Enterprise solutions, and driving adoption among Reddit's largest advertisers. From ideation to delivery, our engineers are trusted with end-to-end ownership of their projects, working closely in cross-functional collaboration with PMs, UX, and partner teams. This hands-on approach means every team member plays a direct and visible role in delivering high-impact, user-focused solutions for some of Reddit’s most strategic advertisers.Role DescriptionThis 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.comDistributed systems that ensure the right ad gets shown to the right user at the right timeBackends that power interactive user experiences on our ads like Polls and GamesReal time, data intensive systems that measure the performance of our ad campaignsInfrastructure that supports all of the aboveTechnologies Used On The Team IncludeLanguages: Go, Python, ScalaFrameworks: Spark, Thrift, Baseplate, KafkaDatastores: Postgres, BigQuery, Redis, Druid Tools: Kubernetes, Argo, DockerMid-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.ResponsibilitiesWork 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 Qualifications3+ 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 PointsExperience working in the Ads domain Experience or interest in the advertising business and understanding customer needsBenefitsComprehensive Healthcare Benefits401k MatchingWorkspace benefits for your home officePersonal & Professional development fundsFamily Planning SupportFlexible Vacation (please use them!) & Reddit Global Wellness Days4+ months paid Parental LeavePaid Volunteer time offIn select roles and locations, the interviews will be recorded, and transcribed and summarized by artificial intelligence (AI). You will have the opportunity to opt out 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.