Staff AI/Machine Learning Engineer

🕒 July 31

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Tonic.ai

WebsiteLinkedInAll Job Openings

51 - 200 employees

🏥 Healthcare

📦 Logistics

💼 Consulting

💰 $35M Series B on 2021-09

Healthcare • Logistics • Consulting

Tonic. ai is a company that provides software solutions for data security and test data management. They specialize in generating realistic synthetic data to safely test and develop applications without using sensitive real data. Their products focus on data de-identification, data masking, and synthesis, making it easier for engineers to create development environments that mirror production conditions. Tonic. ai also integrates with various relational and NoSQL databases, supporting AI development by transforming unstructured data into safe, usable formats. They cater to industries like healthcare and financial services with compliance needs such as HIPAA and GDPR.

📋 Description

• Design and build the systems that generate longitudinally coherent synthetic environments for agent training and evaluation, including persona modeling, task generators, and verifiable ground truth. • Build and maintain synthesis models that generate realistic replacement values at very large scale, preserving format, statistical distribution, and semantic consistency so de-identified data stays useful downstream. • Train and improve the NER models behind our entity detection, driving accuracy and recall across free text, structured fields, and mixed enterprise data at scale. • Build evaluation infrastructure that grades agent outcomes, not just traces, and produces real discrimination between frontier models on real tasks. • Fine-tune and evaluate open-weight models on Tonic-generated data, and turn benchmark results into product and research direction. • Expand coverage into new domains, languages, and entity types, and handle the long tail of formats and edge cases that real customer data throws off. • Own model evaluation across the board: precision and recall on detection, utility preservation on synthesis, and outcome-level grading for agents. • Optimize inference so models run efficiently on large volumes of sensitive data inside customer environments. • Partner directly with frontier labs and enterprise ML team to turn hard data problems into shipped model improvements. • Set technical direction for a small, senior team and raise the bar on rigor, reproducibility, and shipping.

🎯 Requirements

• 8+ years (or PhD with 3+ years) building production ML systems, with real depth in some combination of LLMs, agents, RL, NER, or information extraction. • Hands-on experience training and shipping models to production, and a pragmatic bar for quality: you know how to measure it, where it breaks, and when it's good enough to ship. • Experience with generative or synthesis models where output fidelity and downstream utility both matter, not just plausibility. • Strong software engineering fundamentals. You write code others build on. • Fluency with modern training and eval stacks (PyTorch, distributed training, standard agent and benchmark frameworks). • Comfort working with messy, sensitive, real-world data and the privacy constraints that come with it. • A track record of framing ambiguous problems and driving them to measurable, shipped results. • Bonus: synthetic data generation, data privacy or de-identification, or benchmark construction.

🏖️ Benefits

• Competitive salary and equity • Unlimited paid time off • 401k plan with employer contribution • Medical, dental, and vision insurance • Generous parental leave policy • Remote-friendly work environment