Member of Technical Staff, Multimodal Post-train/RL
Hybrid (San Jose)$180k - $450kfull-timePosted 7mo ago
About the role
The Omni team at Hark builds real-time multimodal intelligence (text, audio, vision) and drives development of multimodal models across data, modeling, training, serving, and product integration, including pretraining and posttraining efforts.
Responsibilities
- Design and implement efficient RL algorithms and training strategies to achieve state-of-the-art performance in multimodal foundation models, PPO/GRPO/RLHF
- Drive research and development agendas to advance real-time multimodal intelligence, including audio, video modeling capabilities
- Improve data quality for large-scale post training by developing data filtering, curation, and synthetic data generation techniques
- Build evaluation frameworks and internal benchmarks to measure model capability, reliability, and user experience across modalities
- Collaborate closely with product and engineering teams to translate research advances into impactful, real-world AI experiences
Qualifications
- Proven track record of leading research that significantly improves neural network capability through advances in data, modeling, or training
- Strong experience in data-driven experimentation, systematic analysis, and iterative model debugging
- Experience building or working with large-scale distributed machine learning systems
- Strong ownership mindset and willingness to do whatever is necessary to deliver the best end-to-end AI user experience
Skills
Required:RL algorithmsData-driven experimentationLarge-scale distributed ML systems
Last updated Jul 16, 2026. Interested? Apply on the company site.
About Hark
building the most advanced personal intelligence in the world.
At Hark, we are building the most advanced personal intelligence in the world.
personal intelligenceartificial intelligence
More open roles at Hark
- Warehouse Associate5d agoSan Jose, CA · Supply Chain
- Industrial Designer1w agoHybrid (San Jose, CA) · Design
- Member of Technical Staff, LLM & Production1w agoSan Jose · AI Foundation Models
- Member of Technical Staff, Hark Desktop2w agoHybrid (San Jose) · Product Engineering
- Application Security Engineer2w agoSan Jose, CA · Privacy & Security