Senior Software Engineer, Core Platform

The job

LIVE Employer public job feed (private-sector employer) Source: the employer's public careers feed · Data: listed 2026-06-22

Job description

We are looking for a Senior Engineer to deepen our team's knowledge in ingestion, processing, storage, and distribution of media at global scale.  You’ll help us build, operate, and scale the media platform that powers Reddit for hundreds of millions of users around the world.

As a Senior Engineer on this team, you’ll be a technical coach and mentor. You’ll draw on your technical expertise to build Reddit’s next generation media platform and to ensure all of our systems have high uptime and strong performance while working with your team to build a roadmap to match the needs of an ever growing engineering organization and to fuel the next wave of Reddit’s growth. 

Additionally, as part of The Core Systems & Libraries team you’ll design, build, and run many critical foundational services, platforms, and libraries (media and non-media) that all engineering teams at Reddit rely on to serve our users and partners. 

Join us and help build the future of Reddit!

You will:

• Develop and design new and innovative solutions to scaling Reddit
• Build platform API projects that scale to the rest of the organization
• Mentor and coach more junior engineers on your direct team to achieve our mission
• Build, deliver, and operate services that scale to millions of transactions per second at 5+ 9’s of availability
• Help us to optimize Reddit’s media experience for hundreds of millions of users across the world.

You have:

• Strong software development experience in one or more general purpose programming languages; Python, Go or similar
• 5+ years of experience with large-scale, mission-critical distributed systems.
• Excellent communication skills. You partner effectively with teams in a fully remote environment and discuss complex topics with technical and non-technical audiences.
• Experienced with GraphQL, gRPC, Thrift, Protobuf, and the ability to design and implement maintainable APIs.
• Familiarity with Kubernetes and cloud platforms (AWS, GCP)
• History of building clean, maintainable, and well-tested code.
• Media delivery expertise from back end systems to the user.  Experience optimizing media performance, scalability, and delivery by improving different stages of the stack.
• Familiarity with media processing and global media distribution; image processing and delivery technologies such as image scaling, cropping, and image formats like progressive JPEG, WebP, HTTP Live Streaming (HLS), MPEG-DASH, MP4, and other streaming protocols, as well as video compression standards (H.264, H.265/HEVC, VP9, AV1), and distribution from user origin, through CDN, to the user experience.

Benefits:

• Comprehensive Healthcare Benefits and Income Replacement Programs
• 401k with Employer Match
• 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
• Flexible Vacation & Paid Volunteer Time Off
• Generous Paid Parental Leave 

#LI-Remote

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 https://www.redditinc.com/careers/.

To provide greater transparency to candidates, we share base salary 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.

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.

Explore around this job

Field: Technology Sub-niche: Software engineering All jobs at Reddit

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FAQ

What is the Senior Software Engineer, Core Platform job at Reddit?

A private-sector role in technology (software engineering) listed 140 days ago. The full description is on this page and on the employer's page.

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How much does it pay?

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What is the cost of living there?

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How old is this listing?

It was posted on 2026-06-22 (140 days ago). Jobs older than 90 days are not shown.

Are there similar jobs?

Yes: browse software engineering jobs in the United States.

Sources and terms

• Job data: Reddit careers page public feed (listing dated 2026-06-22). The job disappears from this site when it disappears from the source.
• Wages and projections: BLS OEWS (May 2025) and Employment Projections 2025–35.
• City and county figures: Census Bureau ACS 2020–2024, BEA, BLS QCEW and LAUS, NASA POWER climatology; distances from Census Gazetteer coordinates.

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Sources

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• Census Bureau American Community Survey (via Census Reporter)
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