Staff Machine Learning Engineer, Ads Creative Effectiveness

Описание

Reddit’s Ads Creative Effectiveness team sits at the heart of our creative strategy, building GenAI and predictive products that help advertisers ship high-impact campaigns.

Responsibilities

• Architect and implement state-of-the-art pipelines for ad creative generation, moving beyond vanilla prompting to build systems capable of product, font, logo and brand asset preservation using techniques like IP-Adapters, and LoRAs
• Build editing capabilities allowing advertisers to smart-crop, inpaint, outpaint, resize, and style-transfer assets while maintaining strict brand guidelines
• Adapt large vision-language models to understand "winning" ad aesthetics, building feedback loops where ad performance metrics (CTR, CVR) are used to fine-tune the generation process (RLHF/RLPF for Ads)
• Engineer robust filtering and safety systems to ensure models never generate non-compliant, unsafe, or copyright-infringing content
• Collaborate with Product, Sales, Policy, UX, and sibling Ads ML teams to integrate ACE capabilities into the Ad Manager UI and the ad delivery path
• Embed brand-safety filters, copyright checks, and human-in-the-loop escalation paths to protect users and advertisers

Requirements

• Deep ML Expertise: Hands-on experience with tree models, neural nets, ranking, and especially LLM/VLM fine-tuning & RLHF/RLPF for ads
• Quant & Experimentation Chops: Comfort with uplift metrics, variance, minimum detectable effects and experimentation setups for generative systems
• Ads / Marketplace Insight: Understanding auction dynamics and advertiser pain points to create tools that drive revenue and retention
• Startup Mindset: Bias to action, comfort with ambiguity, and scrappiness
• Communication Superpowers: Able to distill complex ML trade-offs for executives, product managers, and non-technical stakeholders alike
• Prior work on ad creative tooling: Headline generators, image generators, pre-test models, editing flows for the advertiser

Nice to have

• Experience navigating brand-safety, privacy, or copyright frameworks in generative AI products

We offer

• 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
• Salary range: $230,000—$322,000 USD

Hiring process

• 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, personal information will be collected including Identifiers, Professional and Employment-Related Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to share. This information will be used to evaluate your application for employment or an independent contractor role. Personal information will not be sold or disclosed to any third party for marketing purposes. Any recording of your interview will be deleted promptly after a hiring decision is made. For more information about how personal information will be handled, including retention, refer to the Candidate Privacy Policy for Potential Employees and Contractors.