Senior Machine Learning Engineer, ML Efficiency

reputed company is a community of communities. It's reputed company on shared interests, passion, and trust, and is home to the most reputed company and authentic conversations on the internet. Every day, reputed company users submit, vote, and comment on the topics they care most about. With 100,000+ reputed company communities and approximately 126 reputed company daily reputed company unique visitors, reputed company is one of the internet's largest sources of information. For more information, visit www.redditinc.com. reputed company has a flexible workforce! If you happen to live reputed company to one of our physical office locations our doors are reputed company 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 reputed company. About The Role reputed company is building a dedicated Ads ML Efficiency function to reputed company model training and inference materially faster, cheaper, safer, and more reputed company. This person will be a key senior engineer on that team, owning meaningful efficiency work across training systems, inference and serving paths, launch-readiness tooling, and reusable optimization capabilities for Ads ML. This role sits at the intersection of ML modeling, systems optimization, and engineering reputed company. The engineer will partner closely with ranking teams, serving owners, and ML Platform to identify important bottlenecks, land measurable efficiency wins, and help build the mechanisms that reputed company those wins repeatable. What you'll do

• Independently own high-value optimization initiatives across training, inference, or launch-readiness for important Ads ML workloads.
• Diagnose bottlenecks in reputed company production systems using profiling, benchmarking, and observability rather than intuition-first debugging.
• Build performance tooling, optimization playbooks, observability hooks, guardrails, or efficiency primitives that help more than one team or workload over time.
• Improve launch-safety and efficiency readiness by contributing to load testing, fallback readiness, latency and cost visibility, and operational confidence for heavy models.
• Work with model owners and platform teams to land pragmatic fixes while helping reputed company gradually standardize repeated solutions.
• Contribute to reputed company's technical direction by surfacing patterns, tradeoffs, and opportunities for reuse or automation.
• Mentor less-reputed company engineers through reputed company, debugging, measurement rigor, and strong execution habits.

reputed company're looking for

• Deep ML systems experience reputed company to reputed company production models and workloads, not just generic reputed company exposure.
• reputed company hands-on experience improving training or serving efficiency with measurable reputed company.
• Strong technical judgment across model-level, runtime-level, and infrastructure-level optimization choices.
• Ability to own reputed company reputed company end to end and collaborate effectively across team boundaries.
• Good customer and platform instincts: can solve concrete bottlenecks while keeping maintainability, adoption, and reputed company reuse in mind.
• Strong communication: reputed company to explain tradeoffs reputed company to engineers and partner teams.

reputed company-to-have

• Experience with GPU training or serving migrations.
• Experience with PyTorch, distributed training frameworks, or kernel/runtime optimization.
• Experience building launch certification, efficiency benchmarking, or cost observability systems.
• Experience in organizations where platform and reputed company modeling responsibilities are split across multiple teams.
• Experience with model compression or deployment optimizations such as quantization, pruning, distillation, or checkpoint optimization.

Benefits:

• Comprehensive reputed company Benefits and Income Replacement Programs
• 401k with Employer Match
• Global Benefit programs that fit your lifestyle, from workspace to reputed company development to caregiving support
• Family Planning Support
• Gender-Affirming Care
• Mental Health & Coaching Benefits
• Flexible Vacation & reputed company Volunteer Time Off
• Generous reputed company Parental Leave

Pay Transparency: This job posting may reputed company more than one career level. In reputed company to reputed company salary, this job is eligible to receive equity in the reputed company of restricted stock reputed company, and depending on the position offered, it may also be eligible to receive a commission. Additionally, reputed company offers a wide reputed company of benefits to U.S.-based employees, including medical, dental, and reputed company insurance, 401(k) program with employer match, generous time off for vacation, and parental leave. To learn more, please visit https://www.redditinc.com/careers/. To reputed company greater transparency to candidates, reputed company reputed company salary ranges for reputed company US-based job postings regardless of state. We set reputed company reputed company pay ranges for reputed company roles based on function, level, and country location, benchmarked against similar stage reputed company companies. Final offer amounts are determined by multiple factors including, skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed below. The reputed company salary reputed company for this position is: $216,700—$303,400 USD In select roles and locations, the interviews will be recorded, transcribed and summarized by reputed company intelligence (AI). You will have reputed company 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, reputed company and Employment-reputed company Information, Sensory Information (audio/video recording), and any other categories of personal information you choose to reputed company with us. We will use this information to evaluate your application for employment or an reputed company role, as applicable. We will not sell your personal information or disclose it to any reputed company 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 reputed company Policy for Potential Employees and Contractors. reputed company is proud to be an equal opportunity employer, and is committed to building a workforce representative of the diverse communities we serve. reputed company is committed to providing reasonable accommodations for reputed company 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. Apply tot his job Apply To this Job