waypointjobs

Apply

Machine Learning Platform Engineer

san francisco, CA

Check who can apply and the requirements below before continuing.

About this opportunity

Apply lists this Machine Learning Platform Engineer opportunity in san francisco, California. Review the employer’s description below for duties, qualifications and application requirements.

Job description

Join the Future of Commerce with Whatnot!

Whatnot is the largest live shopping platform in North America and Europe to buy, sell, and discover the things you love. Whether it's trading cards, fashion, electronics, or live plants, our sellers are building real businesses across hundreds of categories. We're building live commerce at a scale that's never been done in the West, and there's no playbook to copy. The people here are shaping how an entirely new industry develops.

As a remote co-located team, we're inspired by our values and anchored in hubs across the US, UK, Ireland, Poland, Germany, and Australia.

We're one of the fastest growing marketplaces and were recently named the #1 Best Startup Employer in America by Forbes. Check out the latest Whatnot updates on our news and engineering blogs and join us as we enable anyone to turn their passion into a business and bring people together through commerce.

Role

We’re looking for builders–intellectually curious, highly entrepreneurial engineers eager to shape the future of AI and ML at Whatnot. You’ll design and scale the core infrastructure that powers machine learning and self-hosted large language model applications across the company, working side by side with machine learning scientists to bring cutting‑edge models into production and unlock entirely new product experiences. This means building systems that make advanced ML dependable and fast at scale–from low‑latency, large model serving to distributed training & high‑throughput GPU inference.

What you'll do:

Own the infrastructure powering AI and ML models across critical business surfaces–supporting growth, recommendations, trust and safety, fraud, seller tooling, and more.

Prototype, deploy, and productionalize novel ML architectures that directly shape user experience and marketplace dynamics.

Design and scale inference infrastructure capable of serving large models with low latency and high throughput.

Build distributed training and inference pipelines leveraging GPUs and both model and data parallelism.

Stretch beyond your comfort zone to take on new technical challenges as we scale AI across Whatnot’s ecosystem.

US Based: We offer flexibility to work from home or from one of our global office hubs, and we value in‑person time for planning, problem‑solving, and connection. Team members in this role must live within commuting distance of our New York, Seattle, Los Angeles, and San Francisco hubs.

You

Curious about who thrives at Whatnot? We’ve found that low ego, a growth mindset, and leaning into action and high impact goes a long way here.

As our next AI/ML Platform Engineer you should have 4+ years of professional experience developing machine learning systems and algorithms, plus:

Bachelor’s degree in Computer Science, Statistics, Applied Mathematics or a related technical field, or equivalent work experience.

3+ years of software engineering experience building and maintaining production systems for consumer‑scale loads.

1+ years of professional experience developing software in Python.

Ability to work autonomously and drive initiatives across multiple product areas and communicate findings with leadership and product teams.

Experience with operational, search, and key‑value databases such as PostgreSQL, DynamoDB, Elasticsearch, Redis.

Firm grasp of visualization tools for monitoring and logging e.g. DataDog, Grafana.

Familiarity with cloud computing platforms and managed services such as AWS Sagemaker, Lambda, Kinesis, S3, EC2, EKS/ECS, Apache Kafka, Flink.

Professionalism around collaborating in a remote working environment and well tested, reproducible work.

Exceptional documentation and communication skills.

Compensation

For US-based applicants: $245,000 - $345,000/year + benefits + stock options

The salary range may be inclusive of several levels that would be applicable to the position. Final salary will be based on a number of factors including, level, relevant prior experience, skills and expertise. This range is only inclusive of base salary, not benefits (more details below) or equity in the form of stock options.

Benefits

Flexible Time off Policy and Company‑wide Holidays (including a spring and winter break)

Health Insurance options including Medical, Dental, Vision

Work From Home Support

Home office setup allowance

Monthly allowance for cell phone and internet

Care benefits

Monthly allowance for wellness

Annual allowance towards Childcare

Lifetime benefit for family planning, such as adoption or fertility expenses

Retirement; 401k offering for Traditional and Roth accounts in the US (employer match up to 4% of base salary) and Pension plans internationally

Monthly allowance to dogfood the app

All Whatnauts are expected to develop a deep understanding of our product. We're passionate about building the best user experience, and all employees are expected to use Whatnot as both a buyer and a seller as part of their job (our dogfooding budget makes this fun and easy!).

Parental Leave

16 weeks of paid parental leave + one month gradual return to work *company leave allowances run concurrently with country leave requirements which take precedence.

EOE

Whatnot is proud to be an Equal Opportunity Employer. We value diversity, and we do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, parental status, disability status, or any other status protected by local law. We believe that our work is better and our company culture is improved when we encourage, support, and respect the different skills and experiences represented within our workforce.

#J-18808-Ljbffr

Worksite address

san francisco, CA, 94199, US

Who can apply

Review the original listing for work authorization, qualifications and employer requirements.

Ready for your next step?Apply on the official website
Apply on WhatJobs ↗

Explore related searches

Current related jobs

Johns Hopkins Applied Physics Laboratory (APL)

WhatJobs

Maritime Robotics Systems Engineer

laurel, MD

See pay details in description

Description Do you have a passion for maritime robotics, autonomy, and AI? Do you like to take ownership of technical problems, seek creative…

Listing review due 2026-10-06View job

Johns Hopkins Applied Physics Laboratory (APL)

WhatJobs

Senior Data Fusion and Tracking Systems Engineer

laurel, MD

See pay details in description

Description Are you excited about applying your knowledge, skills, and talents to solve some of the nation's most complex defense challenges? …

Listing review due 2026-10-06View job

Johns Hopkins Applied Physics Laboratory (APL)

WhatJobs

Applied Signal Processing and AI/ML Engineer

laurel, MD

See pay details in description

Description Are you an engineer who enjoys turning messy sensor data into actionable information? Have you developed signal processing or AI…

Listing review due 2026-10-06View job

Johns Hopkins Applied Physics Laboratory (APL)

WhatJobs

Senior Guidance and Control Engineer

laurel, MD

See pay details in description

Description Are you passionate about collaborating with experienced engineers to design and develop the next generation of weapon systems? Ca…

Listing review due 2026-10-06View job

Johns Hopkins Applied Physics Laboratory (APL)

WhatJobs

Wireless Communications Algorithm Engineer

laurel, MD

See pay details in description

Description Do you have experience solving real world problems related to wireless communications? Are you searching for meaningful work to s…

Listing review due 2026-10-06View job

Johns Hopkins Applied Physics Laboratory (APL)

WhatJobs

Systems Engineer / Analyst

laurel, MD

See pay details in description

Description Are you a "systems thinker" with systems engineering experience who wants to have impact on nationally important defense programs? …

Listing review due 2026-10-06View job