Note: The job is a remote job and is open to candidates in USA. Reddit is a community-driven platform with more than 100,000 active communities and approximately 130 million daily active unique visitors. The Senior Software Engineer will build generative AI and predictive products for ad creative, including image, video, and copy generation, asset editing, performance optimization, and safety systems. The role also provides technical leadership, partners with Product, UX, and Ads ML teams, and mentors engineers.
Responsibilities
- Lead Creative Engineering Architecture: Drive the design and implementation of high-performance backends for ad creative generation. You will own the architectural vision for brand asset preservation and style consistency, ensuring our GenAI stack is modular, extensible, and seamlessly integrated into Reddit’s infrastructure
- Advanced Editing & Asset Workflows: Lead the development of end-to-end image and video editing engines. You will design the underlying APIs and logic that allow for complex asset manipulation while maintaining strict, automated adherence to brand guidelines
- Scale Performance Feedback Systems: Architect the infrastructure that bridges the gap between ad performance (CTR, CVR) and the creative engine. You will build scalable systems to ingest high-volume performance data and programmatically optimize the generation flywheel
- Optimize Model Orchestration & Efficiency: Solve complex engineering challenges around high-concurrency inference, latency optimization, and cost-efficient scaling at Reddit's global volume
- Robust Safety & Compliance Systems: Design and maintain mission-critical middleware for content filtering and compliance. You’ll ensure our safety layers are resilient, low-latency, and capable of preventing non-compliant or infringing content from reaching the platform
- Cross-Functional Technical Leadership: Partner deeply with Product, UX, and Ads ML leadership to help define the technical roadmap for ACE. You’ll translate broad business objectives into concrete technical designs and build integrations into the Ad Manager UI and delivery stacks
- Engineering Excellence: Raise the bar for code quality, system reliability, and documentation within the team. You will lead design reviews, mentor mid-level engineers, and implement guardrails that protect the integrity of our advertiser and user experiences
Skills
- Extensive experience architecting and scaling distributed backend systems (e.g., Python, Go). You have a proven track record of designing robust microservices and APIs that are not only performant but also extensible and easy for others to build upon
- Strong experience bridging the gap between ML models and production software. You understand the nuances of model serving, building resilient data pipelines for LLMs/VLMs, and optimizing the infrastructure required for real-time generative workflows
- A deep understanding of how technical decisions impact the business. You don't just build features; you partner with Product to define them, translating complex advertiser needs into scalable technical roadmaps that drive revenue and retention
- A "startup mindset" paired with senior-level discipline. You have a bias for action but prioritize system reliability, observability, and long-term maintainability, even when moving fast in ambiguous environments
- Exceptional communication skills with the ability to build consensus across Product, Design, and ML teams. You are adept at explaining complex technical trade-offs to non-technical stakeholders and driving technical alignment across the organization
- A passion for raising the engineering bar. You take pride in conducting thorough design and code reviews, mentoring junior/mid-level engineers, and fostering a culture of technical excellence within the team
- Proven experience building complex asset-heavy systems—such as automated image/video processing pipelines or high-scale content creation workflows
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
- Equity in the form of restricted stock units
- May be eligible to receive a commission, depending on the position offered
- Medical, dental, and vision insurance
- 401(k) program with employer match
- Flexible workforce with remote work available in any country in which Reddit has a physical presence
Company Overview
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