Machine Learning Research Engineer

Directors
  • San Francisco
  • Permanent
  • Permanent IT
  • ABo14-1624762
  • 14/10/2025
Machine Learning Research Engineer
Hybrid – San Francisco, CA
$250,000–$350,000 + Excellent Benefits


We’re recruiting for a world-class technology company building the next generation of cloud-native data and AI solutions. Their platform powers some of the world’s largest enterprises, enabling seamless data transformation, governance, and large-scale AI deployment across sectors including finance, healthcare, and technology.


As a Machine Learning Research Engineer, you’ll work on the frontier of applied AI, designing, fine-tuning, and optimizing LLMs and machine learning systems for performance, scalability, and production-grade reliability. This is a hands-on role suited to engineers who thrive on solving complex problems and turning cutting-edge research into deployable solutions.


In this role, you will:

  • Develop and optimize advanced ML and LLM models (SFT, DPO, RLHF, distillation, quantization, pruning).
  • Manage the full ML lifecycle — from data ingestion to training and deployment.
  • Build backend systems and microservices in public cloud environments (AWS, Kubernetes).
  • Collaborate cross-functionally to bring new ML-driven products and features to market.
You’ll bring:
  • Deep experience with PyTorch, Hugging Face, and modern transformer architectures.
  • Strong Python engineering skills for dataset processing and model development.
  • Experience developing and deploying software in cloud-native environments.
  • A genuine builder’s mindset and able to take ideas from concept to production.
Bonus points for:
  • Experience with code generation, semantic extraction, or knowledge graphs.
  • Big data experience with Spark or related technologies.
  • Compiler or model optimization experience (for high-throughput, low-latency systems).
  • Contributions to open-source ML/AI projects.
Why apply?
You’ll join a high-impact team where your work directly shapes the future of enterprise AI and data. Expect exceptional benefits, flexible working, real ownership of your projects, and a culture that values innovation and growth.


Certus Recruitment Group is a well-established and experienced specialist consultancy providing sales, marketing, and IT recruitment services. We serve the technology sector across North America, the UK, Europe, and Australia.
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