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Machine Learning Platform Engineer

Whatnot· Engineering
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Hybrid (US (Remote))$245k - $345kFull-timePosted 4w ago

About the role

Role focusing on designing, scaling, and operating the core infrastructure for machine learning and self-hosted large language model applications across Whatnot, enabling production-grade ML systems and fast, low-latency model serving at scale.

Responsibilities

  • 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.

Qualifications

  • 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.

Skills

Required:Machine learning infrastructurePythonDistributed training and inference pipelinesDatabases (PostgreSQL, DynamoDB, Elasticsearch, Redis)Cloud platforms (AWS Sagemaker, Lambda, Kinesis, S3, EC2, EKS/ECS)Monitoring/observability (DataDog, Grafana)

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
  • Care benefits
  • 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
  • Parental Leave
Last updated Oct 21, 2026. Interested? Apply on the company site.
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About Whatnot

Whatnot is the largest livestream shopping platform in the U.S.

Whatnot is the largest livestream shopping platform in the U.S., connecting buyers and sellers in real-time across any category – from collectibles like trading cards to comics, fashion, sneakers, and more.

marketplacee-commerce
Company profileWebsite

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