Senior Software Engineer, Core Platform

The job

LIVE Employer public job feed (private-sector employer) Source: the employer's public careers feed · Data: listed 2026-06-23

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 Jobs in New York Jobs in New York City, NY New York state guide

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About the role

This is a — role in the Technology field (Software engineering) at Reddit.

We could not match this job title to one occupation in the official wage statistics, so no pay estimate is shown. Pay is not in the source listing; ask the employer for the range and compare in the 240 job niches.

How to prepare and behave

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• Read the whole description and match your examples to its requirements; use the same words the posting uses where they are true for you.
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• Arrive early (or log in early for a video call), dress one step above the daily dress code, and test your camera and audio beforehand.
• Answer with short stories: the situation, what you did and the result. Give numbers when you have them and never invent them.
• Be honest about gaps; say what you did to learn and how fast you can close them.
• Ask about the team, the first 90 days, how success is measured and the schedule; do not open with salary and time off.
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The city

New York City, NY is not one of the cities with its own page in our guides, so here is the state: New York.

The state economy in brief

New York is in the Northeast region (Middle Atlantic division) and has 19,852,366 residents (the 4th largest of the 50 states and DC by population), with a median age of 39.8. Its economy produced about $2,561,197 million in the latest four quarters (BEA), 3rd among states and DC, equal to $129,012 per resident.

Jobs and the labour market

The unemployment rate was 4.3% in 2026M09, which is 36th lowest of 51 (1st is the lowest). Employers had job openings equal to 4.1% of employment, 18th highest of 51, a measure of how hard it is to hire. The median wage across all occupations is $59,670 a year ($28.69 an hour), 17% above the national median ($59,670 against $50,980).

What people do and what it pays

The occupations with the most jobs in New York are Home Health and Personal Care Aides (663,140 jobs, median $39,620); Retail Salespersons (238,540 jobs, median $37,720); General and Operations Managers (206,740 jobs, median $130,860); Registered Nurses (205,810 jobs, median $109,440); Janitors and Cleaners, Except Maids and Housekeeping Cleaners (195,250 jobs, median $41,640). Among occupations with at least 2,000 jobs, the best paid are Cardiologists (median $492,040); Anesthesiologists (median $445,660); Radiologists (median $441,580). Compared with the nation, the state is most specialised in healthcare support (1.8 times the national share of workers) and legal (1.7 times the national share of workers).

Cost of living, taxes and workplace rules

Prices are above the national average in New York: the regional price parity is 107.9 against 100 for the whole country (47th lowest of 51). Median gross rent is $1,621 a month and the median household income $85,974, so a year of rent equals 22.6% of income; the median home value is $423,800. The state minimum wage is $16.00 (17.00 in NYC, Nassau, Suffolk, Westchester) (the higher of state and federal rates applies to most workers). State income tax on wages: Graduated, top rate 10.90%. It is not a right-to-work state, so union contracts can require fees from covered workers. It runs a state paid family and medical leave programme.

People and commuting

22.8% of residents were born abroad and 40.2% of adults hold a bachelor's degree or higher. Among workers, 48.8% drive alone, 21.6% use public transit and 14.9% work from home; 27.4% commute 45 minutes or more.

State guide: New York →

Where to live

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Career paths

We could not match this title to one occupation, so here are the other sub-niches in Technology, where your skills may carry over:

Cybersecurity (713) Data, analytics and AI (3366) Cloud, IT and infrastructure (1040) Product management (836)

Distances

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The employer

Reddit is the employer in this listing. See all its open jobs here →

We do not hold headcount or revenue for this employer. Check its careers site and, if it is listed on a stock exchange, its public filings (SEC EDGAR search).

What it is like to work at a company (culture, schedules, benefits) is not in the source data, so we do not describe it. Read the description and ask the questions under "How to prepare".

Other open jobs at Reddit

Similar jobs

Same sub-niche: Software engineering

More jobs in New York City, NY

All Software engineering jobs → · All Technology sub-niches →

FAQ

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

A private-sector role in technology (software engineering) listed 139 days ago. The full description is on this page and on the employer's page.

Where is this job?

New York City, NY.

How do I apply?

Use the "View this job and apply on the employer's page" button. AtiveSite does not receive applications.

How much does it pay?

The listing does not publish pay, and we could not match the title to one official occupation.

What is the cost of living there?

See the state or country guide for rent, income and taxes.

How old is this listing?

It was posted on 2026-06-23 (139 days ago). Jobs older than 90 days are not shown.

Are there similar jobs?

Yes: browse software engineering jobs in New York.

Sources and terms

• Job data: Reddit careers page public feed (listing dated 2026-06-23). 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.

AtiveSite is not affiliated with or endorsed by the employer or any government agency, and does not process applications. Verify every detail with the employer before acting.

Sources

• BLS OEWS (wages and employment by occupation, May 2025)
• BLS Employment Projections 2025–35
• BLS Local Area Unemployment Statistics
• BLS JOLTS
• BLS State and Metro Area Employment
• Census Bureau American Community Survey (via Census Reporter)
• BEA GDP by state and Regional Price Parities
• IRS 2026 tax adjustments
• U.S. Department of Labor, minimum wage by state
• Tax Foundation state income tax rates 2026
• USAJOBS
• USCIS
• U.S. Department of State, visas
• NASA POWER climatology
• GeoNames / Census Gazetteer (coordinates)