Software Engineer, Ads, Ontario at Reddit

Confirmed open

Reddit is hiring a software engineer, ads, ontario focused on advertising product engineering.

Reddit

Location: Remote
Work arrangement: remote
Technologies: Python, Java, C++, Kubernetes, Docker, Go

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Role overview

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

Reddit 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 include:

The 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.

The 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.

The 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.

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 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.

This 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.com

Distributed systems that ensure the right ad gets shown to the right user at the right time

Backends that power interactive user experiences on our ads like Polls and Games

Responsibilities

Design, build and operate production systems for advertising product engineering.
Collaborate with product, design, data and engineering teams.
Improve reliability, performance, testing, automation and documentation.
Translate community and business needs into maintainable software.

Qualifications

3+ 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.
Experience working in the Ads domain
Experience or interest in the advertising business and understanding customer needs

Technology in this role

Python: Python Java C++ Kubernetes Docker .
Java: Python Java C++ Kubernetes Docker .
C++: Python Java C++ Kubernetes Docker .
Kubernetes: Python Java C++ Kubernetes Docker .
Docker: Python Java C++ Kubernetes Docker .
Go: Python Java C++ Kubernetes Docker .
C: Python Java C++ Kubernetes Docker .
Scala: 3+ years of software development experience in one or more general purpose programming languages (Java, Scala, Go, C++, .
Redis: • Datastores: Postgres, BigQuery, Redis, .
Kafka: • Frameworks: Spark, Thrift, Baseplate, .
Spark: • Frameworks: Spark, Thrift, Baseplate, .
CAN: 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 .
BigQuery: • Datastores: Postgres, BigQuery, Redis, .

Benefits

Global Benefit programs that fit your lifestyle, from workspace to professional development to caregiving support
Mental Health & Coaching Benefits
Comprehensive Medical Benefits & Health Care Spending Account
Registered Retirement Savings Plan with matching contributions
Flexible Vacation & Paid Volunteer Time Off
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.