# Machine Learning Engineer > Raydar · San Mateo, United States · Full-time · Posted 2026-10-15 **Salary:** USD 175,000–250,000 **Workplace:** on_site ## Description About the company Our client is a software company. The role Raydar is recruiting for this role on behalf of our client. Develop and deploy bespoke machine learning models for a software product, owning the work from raw data preparation through to live operation. Collaborate with colleagues across functions to turn product ideas into shipped features, within a small, fast-moving, fully on-site team. What you'll do \- Create, fit and assess proprietary neural models and learned representations that power the product. \- Take charge of the full data workflow, from sourcing and cleaning through to the model fitting framework. \- Strengthen the tooling used to run experiments, track results and reproduce outcomes. \- Move models from early prototype into live use, then watch their behavior and refine them based on real usage. \- Work with product and other colleagues to convert needs into machine learning solutions and release new capabilities. \- Write tidy, efficient Python and join in peer review, testing and troubleshooting. \- Follow current research developments and introduce promising techniques to the team. ## Requirements What we're looking for \- Around 4 or more years working as a machine learning engineer in industry, or comparable research experience. \- A graduate degree in a quantitative field such as computer science, with solid grounding in machine learning. \- A track record of designing neural networks from the ground up rather than only adapting pretrained ones. \- Experience devising original modeling approaches instead of leaning on ready-made tools. \- Working knowledge of PyTorch or a similar deep learning library. \- Hands-on experience with large language models and transformer architectures. \- Exposure to graph-based neural architectures. \- Experience delivering machine learning in production settings, with a clear sense of production standards; this is not a purely academic role. \- Advanced Python skills and the ability to produce dependable code on your own. \- Comfort juggling several priorities in a fast-paced startup. \- Sharp problem-solving, careful attention to detail, and strong communication and collaboration. Bonus points \- Familiarity with world models. \- Prior work in scientific or physical-world areas such as robotics or simulation. \- Experience with managed machine learning services or large cloud providers. \- Backend development experience with a Python web framework and SQL. \- Background in CAD or geometry-focused computing. ## Benefits Compensation and benefits \- Base salary: USD 175,000 to 250,000 per year \- Equity \- Health, dental and vision coverage \- Flexible time off \- Professional development opportunities Location and work model \- San Mateo, CA, United States \- On-site, 5 days per week in the office \- Full-time ## Apply [Apply at Raydar](https://apply.workable.com/raydar/j/EEBEAB0E98/apply) --- Powered by [Workable](https://www.workable.com)