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Senior Software Engineer, Ads API Platform

USA flag USA


Posted 12 days ago

Job Type

Full Time


$191k - $267k







  • Mission/Vision: Reddit aims to foster community, belonging, and empowerment through its platform, where users engage in open and authentic conversations. This role in Ads API helps to sustain and optimize the platform's primary revenue source.

  • Key Responsibilities: Ensure service health for the Ads API, uphold quality for upstream services, build tools for developers, and collaborate on innovative ad products.

  • Growth Opportunities: Work with cutting-edge technologies and frameworks, gain experience in API development and maintenance, and lead high-impact projects within a major internet platform.


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 73+ million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit .

Ads is the fuel that powers Reddit's mission to bring community, belonging, and empowerment to everyone in the world. The Advertiser Platform organization owns the frontend and backend of, the core advertiser-facing product on Reddit. We are seeking a Senior Software Engineer to join our Ads API team within the Advertiser Platform organization!

The team's responsibilities include:

  • Ensuring service health for our API product

  • Upholding a quality bar for upstream services and partner feature teamsBuilding platform tools to enable internal and external developers

  • Focusing on customer needs to enable API 3rd-party partners and direct advertisers

Your responsibilities will include:

  • Collaborating with product managers to design and implement Ads products

  • Ensuring service health and uptime

  • Leading the processes needed to improve operational stability, including improving code quality, delivering dashboards, and creating data visualizations

  • Building extensible components that align with product objectives

  • Supporting day-to-day project management tasks, including communicating project updates, managing project timelines, and overseeing project execution


  • 5+ years of software development experience in one or more general-purpose programming languages (e.g., Python, Go, Java, Scala)

  • Excellent communication and collaboration skills

  • Ability to design and architect complex solutions that span systems at high quality

  • Ability to take complete ownership of a feature or project from start to finish

Preferred Qualifications:

  • Experience owning an API layer as a platform, experience with OpenAPI

  • Product-feature development experience utilizing LLMs in production, or developer-platform experience utilizing LLMs/AI-tooling in production

  • Experience with Ads platforms or related technologies

  • Frontend experience (our ads UI is one of our biggest customers of the Ads API)"

  • Experience or familiarity with

    • Frameworks: React, Thrift, Baseplate, Kafka

    • Datastores: Postgres, Cassandra, Druid, Redis, BigQuery

    • Tools: Kubernetes, Argo, Docker


  • Comprehensive Healthcare Benefits

  • 401k Matching

  • Workspace benefits for your home office

  • Personal & Professional development funds

  • Family Planning Support

  • Flexible Vacation & Reddit Global Wellness Days

  • 4+ months paid Parental Leave

  • Paid Volunteer time off

Pay Transparency:

This job posting may span more than one career level.

In addition to base salary, this job is eligible to receive equity in the form of restricted stock units, and depending on the position offered, it may also be eligible to receive a commission. Additionally, Reddit offers a wide range of benefits to U.S.-based employees, including medical, dental, and vision insurance, 401(k) program with employer match, generous time off for vacation, and parental leave. To learn more, please visit .

To provide greater transparency to candidates, we share base pay ranges for all US-based job postings regardless of state. We set standard base pay ranges for all roles based on function, level, and country location, benchmarked against similar stage growth companies. Final offer amounts are determined by multiple factors including, skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed below.

The base pay range for this position is:

$190,800—$267,100 USD

Reddit is committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation due to a disability, please contact us at .


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Healthcare benefits

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401(k) Match

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Parental leave

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Paid Leave