Senior Software Engineer, Infrastructure Engineering

The Infrastructure Engineering team enables Reddit to deliver Reliability, Performance, and Efficiency, with a single opinionated technology stack. We empower Reddit developers by delivering a reliable, scalable, and automated foundation - unifying compute, seamless deployments, robust storage, and high-performance messaging to maximize developer velocity and system resilience. 

This centralized role hires across several high-impact teams, including:

• Messaging: Delivers a reliable, performant, and efficient platform to support asynchronous communication across all products and services at Reddit.


• Compute: Provides a resilient, high-performance, and cost-effective abstraction layer that streamlines application deployment and execution management across systems.


• Build & Deployment: Builds platforms and developer tooling that enable engineers to build, test, and safely deploy software across Reddit’s infrastructure.


• Consumer IAM: Authentication, authorization, and account infrastructure services.


• Core Systems & Libraries: Builds the foundational services that power Reddit.


• Security: Builds software that improves the security and reliability of Reddit’s infrastructure.


• GRC (Governance, Risk & Compliance): Builds software and automation that help Reddit manage risk, monitor controls, and scale security and compliance programs.

What You’ll Do

• Cross-Functional Product Architecture: Partner closely with Product Management, Product Design, Data Science, and Client Engineers (iOS/Android/Web) to translate business and user needs into reliable, low-latency technical solutions.


• End-to-End Delivery: Own the full software lifecycle for major product initiatives from technical design docs and API contracts to development, testing, rollout, and observability.


• Metrics & Experimentation-Led Engineering: Design, build, and evaluate A/B experiments. Work with tools like BigQuery, HEX, or Firebase to analyze user behavior, conversion funnels, and retention loops to make data-backed engineering decisions.


• API & System Performance: Build and maintain scalable APIs (GraphQL, REST, gRPC) and distributed backend services optimized for client consumption and consumer UI performance.


• Technical Rigor & Modern Tooling: Establish engineering best practices, improve developer workflows, mentor teammates, and use modern, AI-integrated tools to ship high-quality products efficiently.

In your day-to-day, you will: 

• Steer: Work with the team to select, scope, and drive high leverage projects that align with Reddit’s goals.


• Build: Execute on a strategy and create a more performant, more scalable, higher quality architecture around authentication, authorization and identity.


• Amplify: Mentor, coach, and collaborate with other technical contributors 


• Collaborate: Work together with a variety of cross functional teams across Reddit Engineering.


• Evolve: Learn and improve your own technical and non-technical abilities

Who you might be:

• 5+ years of experience building internet-scale software, preferably with a focus on machine learning storage infrastructure.


• Software development experience in one or more general purpose programming languages; Golang, Python, C++, Java


• Experience with essential cloud infrastructure (Kubernetes, IC/CD, AWS, GCP)


• Hands-on experience implementing features, optimizations, and bug fixes to distributed messaging systems.


• Excellent communication skills to collaborate with stakeholders in engineering, data science, machine learning, and product.


• Degree in Computer Science or equivalent technical field.

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