Member of Technical Staff â Applied AI
Member of Technical Staff â Applied AI
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$ 150 - 400
1 Vacancy
Job Description
Tzafon is a foundation model lab building scalable compute systems and advancing machine intelligence with offices in San Francisco Stockholm & Tel Aviv. We recently raised $9.7m in pre-seed funding to advance our mission of expanding the frontiers of machine intelligence.
Were a team of engineers and scientists with deep backgrounds in ML infrastructure & research. Founded by IOI and IMO medalists PhDs and alumni from leading tech companies we train models and build infrastructure for swarms of agents to automate work across real-world environments.
Youll work between our product and post-training teams to ship Large Action Models that actually work. Build evals benchmarks and fine-tuning pipelines. Define what good model behavior means and make it happen at scale.
What youll do
Build evaluation infrastructure for agent systems
Create benchmarks that measure real capability
Design data pipelines for behavioral data collection and analysis
Implement fine-tuning pipelines (wandb distributed training infrastructure)
Work with post-training team on RLHF and behavioral optimization
Build tools for model introspection and capability mapping
Ship continuous evaluation systems that catch regressions before users do
Were looking for
Expert-level at Python and ML frameworks (PyTorch)
Deep experience with LLM fine-tuning and evaluation infrastructure
Track record of shipping ML systems to production
Strong opinions on what makes a good eval
Experience with wandb MLflow or similar experiment tracking
Preferred Experience
Built eval frameworks at AI labs or LLM companies
RLHF/Constitutional AI/DPO implementation experience
Published work on model evaluation or benchmarking
Contributions to open source ML infrastructure
Experience with multi-agent systems or tool-use models
Life at Tzafon
Full medical dental and vision coverage plus 401(k)
Office in SF and Tel Aviv
Early-stage equity in a future-defining company
Visa sponsorship: We do sponsor visas! However we arent able to successfully sponsor visas for every role and every candidate. But if we make you an offer we will make every reasonable effort to get you a visa and we retain an immigration lawyer to help with this.
Compensation starts at $150k-$400k equity package depending on experience & location.
We also offer a referral bonus of $20k for referral of successful hires (send to ).
Required Experience:
Staff IC
Employment Type
Full-Time
