Reddit, Inc.

Frontend Engineer

• Build with impact: Design and evolve the Shreddit web platform’s architecture, performance, and developer tooling that powers reddit.com for hundreds of millions of users across the world.
• Own the web stack: Lead end‑to‑end delivery of complex, cross‑service initiatives in areas like asset delivery, html processing, observability and reliability for core web experiences.
• Collaborate broadly: Partner with feature teams, infrastructure, safety, security and other platform teams to make Reddit’s web experience fast, stable, and accessible worldwide.
• Multiply others: Mentor and coach other engineers through design reviews, pairing, and documentation, raising the bar for web engineering across Reddit.
• Shape the platform: Be a thought partner in our web platform strategy, informing our roadmap for performance as a feature, observability, and developer experience.

Senior Web Engineer, Web Platform

Compliance

• Design and implement scalable assurance frameworks
• translate abstract legislative requirements into concrete processes
• act as a dedicated advisor to cross-functional partners
• proactively identify gaps in platform risk management
• serve as the primary point of contact for external audits
• monitor evolving landscape of internet regulations
• leverage advanced audit techniques to maximize compliance efficiency

Platform Regulatory Assurance Manager

Full-stack Engineer

• Define and drive the technical strategy for Cloud Resource management within Ad first, ensuring that cost accountability is built into the architecture of our systems.
• High-Fidelity Investment Modeling: Elevate cloud estimation from guesswork to a rigorous engineering discipline. You will lead the high-quality forecasting of new cloud investments and efficiency projects, designing data-driven models to validate technical ROI before builds happen.
• Design and implement a roadmap for Cost Observability 2.0, moving beyond simple reporting to real-time, service/team-level spend attribution and automated anomaly detection.
• Design and build internal platforms that programmatically enforce PnL accountability. You will engineer (or collaborate with Core Infrastructure partners) to deliver the dashboards, alerts, and governance tools that every Ads team relies on to manage their cloud footprint.
• Architect automated frameworks for validating cost estimates and forecasting, replacing manual spreadsheets with data-driven software solutions.
• Fight for observability by instrumenting deep telemetry into our cloud infrastructure. You will be hands-on in identifying inefficiencies (e.g., underutilized clusters, uncompressed data flows) and re-architecting critical paths for cost reduction.
• Lead the technical validation of vendor and 3rd-party tool integration, ensuring we extract maximum engineering value from every dollar spent.
• Act as a role model for the Ads domain and the wider company. You will set the standard for how engineering teams think about Cost as a Non Functional Requirement, eventually scaling these patterns to other domains.
• Partner with Finance and Engineering leadership to translate Cloud Spend into actionable engineering tasks (e.g., refactor Service X to use Spot instances).

Senior Staff Engineer, Cloud Economics

Research Engineer

• Architect and maintain the "Reddit Benchmark" evaluation suite: A comprehensive harness that rigorously tests model capabilities across Safety, Reasoning, and Reddit-specific knowledge (slang, norms).
• Build scalable SFT (Supervised Fine-Tuning) pipelines: Implement efficient, distributed training loops for instruction tuning, converting raw base models into helpful assistants.
• Develop Model-as-a-Judge systems: Engineer automated evaluation pipelines using strong models (e.g., GPT-5, Nova, Claude) to grade the outputs of our internal models, enabling rapid iteration cycles.
• Execute Synthetic Data generation strategies: Create and curate high-quality instruction sets to improve model generalization where human data is scarce.
• Collaborate with Safety Engineering: Translate high-level safety policies into concrete evaluation metrics and unit tests that run in our CI/CD pipelines.
• Debug post-training instability: Dive deep into loss curves and evaluation logs to identify when fine-tuning is causing alignment tax or capability degradation.

Senior Research Engineer – Post-training, Evaluation

Product Adoption Specialist

• Attract, train, and develop a team of world-class talent Product Adoption Strategists
• Collaborate with your team to develop vertical and account-level product strategies to deliver business results for Reddit advertisers
• Empower and inspire your team to exceed established product adoption and revenue targets
• Partner with Sales and Product Leaders to crystalize market opportunities, refine product target account lists, and identify roadmap opportunities for development
• Work with Sales and Strategy & Operations leadership to track progress to goal and identify steps that can be taken to accelerate outcomes.
• Build and manage senior-level relationships with external (key clients, agency partners) and internal (Product, PMM, Sales Leads) constituents

Product Adoption Manager – Lower Funnel

Product Adoption Manager, Shopping

Account Manager

• Team Leadership & Development: Manage and develop a global team of data scientists and partnership managers, ensuring efficient operations and career growth within the Marketing Science function.
• Strategic Bets Oversight: Drive the execution of strategic bets including platform research & insights, 3P solutions enablement as well as scaled tooling & productivity solutions.
• Research & Methodology: Direct the development of various measurement methodologies, algorithms, and tools—such as attitudinal survey research, ROI measurement, and causal inference—to support global sales efforts.
• Partnership Management: Manage the implementation and activation of partner solution programs for clients, acting as the primary liaison between external 3P measurement partners and Reddit internal teams.
• Technical Informatics: Oversee a data informatics team focused on delivering technology-based solutions, including clean room implementations, AI tooling, and ML productivity.
• Insights & Narratives: Support the creation of 1P and 3P research, meta-analyses, and case studies that communicate Reddit’s value to internal and external stakeholders.
• Industry Representation: Represent Reddit to the larger research and analytics industry through speaking engagements, white papers, and conferences.
• Operational Excellence: Oversee project completion from initiation to delivery, ensuring all research and tooling scales across all Reddit advertisers.

Marketing Science Research and Partnerships Manager

• Identity is a critical dependency across the Reddit Ads stack
• The Identity Infrastructure pod owns systems that sit directly on the hot path for attribution, measurement, and ads delivery
• Provide clear technical ownership and direction for Identity Infrastructure
• Set architectural standards, guide the evolution of our identity graph and matching systems
• Build solutions that scale with the business while meeting reliability and privacy requirements
• Resolve, link, and serve user identity across Reddit Ads
• Build foundational infrastructure that directly impacts ads performance, privacy resiliency, and platform scale
• Serve as the technical lead for the Identity Infrastructure pod

Staff Software Engineer, Identity

Product Designer

• Define the long-term design vision and lead the design strategy of Reddit’s Advertiser Platform, balancing the complexity of advertising needs with simplicity and usability.
• Stay ahead of the curve by staying informed about the latest ad technologies, design trends and evolving digital ecosystem. Lead efforts to conceptualize non-obvious initiatives to the Ads Platform, pushing the boundaries of user-centric design and exploring opportunities to differentiate Reddit from competitors.
• Translate complex ideas into scalable, intuitive design solutions that elevate the user experience for advertisers and account managers at scale.
• Take the lead at every stage of the design lifecycle from ideation to delivery, ensuring high-quality execution that balances innovation with usability.
• Deeply understand the diverse needs of advertisers across market segments and verticals, and translate insights into intuitive, impactful design solutions.
• Collaborate closely with product managers, engineers, and UX researchers, driving consensus and effectively communicating design ideas to senior leadership and stakeholders.
• Cultivate a culture of learning and growth within the design team, fostering a collaborative and innovative environment while developing the next generation of design talent.

Principal Product Designer, Ads Platform

Backend Engineer

• Develop a long-term technical strategy to unlock the next tier of agency enablement on the Reddit Ads Platform.
• Lead large cross-functional projects end to end, ensuring the highest quality and performance.
• Have a strong product sense and run customer interviews, translating data and user feedback into features.
• Mentor engineers and leaders, sharing industry knowledge, contributing to the technical growth of the team.
• Disambiguate complex problems and align stakeholders with different priorities.
• Make system level improvements, enhancements and implement complex code modifications.
• Collaborate closely with engineering teams to integrate Business Manager capabilities into the broader infrastructure.

Staff Backend Software Engineer, Ads Business Manager

• Work with the team to select, scope, and drive high-leverage projects
• Help define the 2+ year technical roadmap for the platform
• Execute on a strategy to create a world-class developer experience
• Mentor, coach, and collaborate with other technical contributors
• Work together with cross-functional teams to ensure the Ads API meets stakeholders' needs
• Learn and improve technical and non-technical abilities

Staff Software Engineer, Ads API

• Work with the team to select, scope, and drive high-leverage projects
• Help define the 2+ year technical roadmap for the platform
• Execute on a strategy to create a world-class developer experience
• Mentor, coach, and collaborate with other technical contributors
• Work together with a variety of cross-functional teams

• Develop a long-term technical strategy to unlock the next tier of agency enablement on the Reddit Ads Platform.
• Lead large cross-functional projects end to end, from concept, design, and implementation through to launch and driving adoption all while ensuring the highest quality and performance.
• Have a strong product sense and be able to run customer interviews, translating data and user feedback into features that inform the team’s roadmap.
• Mentor engineers and leaders, share industry knowledge, and contribute to the technical growth of the team.
• Disambiguate complex problems, align stakeholders with different priorities, and aggressively prioritize to execute effectively.
• Be able to make system level improvements, enhancements and implement complex code modifications.
• Collaborate closely with engineering teams and stakeholders to integrate Business Manager capabilities into broader infrastructure and use cases across Reddit.

Staff Software Engineer, Ads Business Manager

Community Manager

• Gain a deep understanding of the market to identify user and local moderator challenges, and market opportunities.
• Iterate, innovate, and scale the consumer growth playbook by recognizing new opportunities, suggesting bold ideas and programs, and persuading internal teams to align on new plans.
• Build strategic plans to cultivate, recruit, educate, and grow a local community of moderators (i.e., volunteers who develop, maintain, and shape the culture of local communities). Implement a conversion funnel designed to onboard power users and external creators, transforming them into active moderators.
• Communicate quantitative and qualitative insights to optimize and improve the international consumer growth playbook.
• Be obsessive about achieving aggressive goals and outcomes.
• Analyze quantitative and qualitative data, set KPls, and execute impactful community initiatives: leverage data to uncover community and moderator insights that will influence the direction of the local team in the market.
• Work cross-functionally with Product, Community, Engineering, Marketing, Safety, and BD

Community Specialist

• Architect and implement high-throughput, deterministic data sampling systems capable of feeding distributed training clusters at frontier-model scale.
• Design and execute dynamic curriculum learning strategies, creating systems that automatically adjust data distributions (text vs. multimodal) during training to improve model stability and reasoning capabilities.
• Engineer the logic for serializing Reddit’s complex conversational trees (threads, subreddits, cross-posts) into optimal training contexts, developing topological data processing strategies that preserve semantic relationships for model understanding.
• Formulate and validate statistical hypotheses regarding data mixtures, leveraging advanced sampling theory to minimize bias and maximize token quality.
• Design the "Safety-First" ingestion layer: Build automated pipelines for PII redaction, toxicity signals, and quality deduplication upstream of training, working closely with our Safety and Moderation Engineering counterparts.
• Bridge the gap between research and engineering by translating theoretical sampling insights into robust, low-latency production infrastructure.
• Mentor senior engineers and researchers on system design, numerical correctness, and performance optimization within distributed Python/Rust environments.

Senior Web Engineer, Web Platform

Platform Regulatory Assurance Manager

Senior Staff Engineer, Cloud Economics

Senior Research Engineer – Post-training, Evaluation

Product Adoption Manager – Lower Funnel

Product Adoption Manager, Shopping

Marketing Science Research and Partnerships Manager

Staff Software Engineer, Identity

Principal Product Designer, Ads Platform

Staff Backend Software Engineer, Ads Business Manager

Staff Software Engineer, Ads API

Staff Software Engineer, Ads API

Staff Software Engineer, Ads Business Manager

Community Specialist

Staff Research Engineer – Pre-training Data