← All jobs · Reddit

Staff Software Engineer

Reddit ·
49
AI-Agency
B45 U55
📍 US 🌐 Remote-only Staff 7+ yrs
GoPythonScalaJavaC++
TL;DR

Staff Software Engineer at Reddit building the ads platform. Focus on distributed systems, backend services, and cross-functional collaboration on ads business, safety, and advertiser growth initiatives.

Apply at Reddit →
you'll be redirected to the company's career page

Job description

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 121 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com.

Team Description

(We have 3 new openings for the Ads org)

Ads Business Manager

The 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 LCS 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.

Ads Safety and Verification

Ad Safety is a growing team focusing on user safety and advertiser trust by building a robust, automated ecosystem that prioritizes Brand Suitability and Ads Integrity. This is achieved by deploying highly accurate automated ad review systems that vet content before it goes live, coupled with advanced brand safety classifications and controls that give brands granular agency over their ad adjacency along with ensuring Reddit standards are adhered to. By further integrating with trusted third-party verification partners, the platform not only solidifies confidence in its ad effectiveness but also creates a transparent, scalable environment designed to unlock significant revenue growth.

The team is expanding its Fraud counter-measures by consolidating the identification and enforcement of deceptive ads (Malware, Phishing, Scams) and Billing fraud into a centralized platform. Collecting signals across multiple surfaces, in addition to third party vendor integration, will allow for more effective measures to analyze coordinated efforts of bad actors and pre-emptive detection of malignant intent. 

Advertiser Growth and Retention

The Advertiser Growth team is the engine driving Reddit’s SMB revenue and active advertiser base. Our mission is to make SMBs successful on the platform and retain them as customers, a goal we are aggressively pursuing by evolving our platform beyond initial activations.

As we look to 2026 and beyond, the Retention focus of our team is critical. We are moving from simple acquisition to full campaign lifecycle support—building intelligent systems that help advertisers optimize their campaigns, understand their value, and remain active on the platform. This team owns high-impact initiatives like the 1 Click Campaign automation, reactivation flows, and sophisticated optimization tools that ensure every advertiser, from a first-time SMB to a returning large merchant, finds success on Reddit.

Qualifications

Preferred Qualifications

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.

The base salary range for this position is:
$217,000$303,900 USD

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.

Apply at Reddit →

More open roles at Reddit

Reddit ·
Staff Machine Learning Engineer, GenAI Platform
📍 US 🌐 Remote-only · Staff
Staff Machine Learning Engineer at Reddit building generative AI and LLM platform infrastructure. Focus on distributed training systems, model evaluation pipelines, and self-serve workflows for foundation models at scale.
PythonGoKubernetesDockerCUDARay
81
AI-core
Reddit ·
Senior Staff Machine Learning Engineer, GenAI Platform
📍 US 🌐 Remote-only · Staff
Senior Staff ML Engineer at Reddit building the GenAI Platform. Leads strategy and architecture for LLM gateway, RAG systems, and agentic workflows across the company's AI infrastructure.
PythonGoKubernetesAWSGoogle Cloud StorageTerraform
81
AI-core
Reddit ·
Staff Machine Learning Engineer, Consumer
📍 US 🌐 Remote-only · Staff
Staff Machine Learning Engineer at Reddit building large-scale ML systems for recommendations, search, and content understanding. Lead end-to-end initiatives from research to production deployment across the consumer platform.
TensorFlowPyTorchHugging Face TransformersPythonGolangSpark
79
AI-core
Reddit ·
Senior Machine Learning Engineer, Core Experience and Growth
📍 US 🌐 Remote-only 🛠 AI tools welcome at work · Senior
Senior Machine Learning Engineer at Reddit building personalization and ML systems for user onboarding and early feed experiences. Focus on deep learning model training, real-time inference, and LLM integration for growth.
TensorFlowPyTorchPythonGoSQL
79
AI-core
Reddit ·
Staff Machine Learning Engineer, Dev Platform Data and Discovery
📍 US 🌐 Remote-only · Staff
Staff Machine Learning Engineer at Reddit building ranking and personalization systems for the Developer Platform. Focus on applied ML models for feed ranking, game taxonomy, and real-time personalization at scale.
PythonTensorFlowPyTorchSequence ModelingReinforcement LearningTransformer Architecture
77
AI-core