
Together AI is a research-driven artificial intelligence company. We contribute leading open-source research, models, and datasets to advance the frontier of AI. Our decentralized cloud services…

Together AI is a research-driven artificial intelligence company. We contribute leading open-source research, models, and datasets to advance the frontier of AI. Our decentralized cloud services…
What they do: End-to-end cloud platform for open-source generative AI: training, fine-tuning, inference, and managed GPU clusters
HQ & identity: Together Computer, Inc. (operating as Together AI); headquartered in San Francisco
Founders: Vipul Ved Prakash; Ce Zhang; Chris Ré; Tri Dao; Percy Liang
Funding: Raised multiple rounds including $20M seed (2023) and $305M Series B (2025); total funding reported ~$533.5M
Enabling efficient development, scaling, and deployment of open-source generative AI models
2022
Software Development
20000000
Seed round reported May 15, 2023
305000000
Series B co-led by Prosperity7; reported valuation at $3.3B in coverage
“Participation from strategic investors including NVIDIA and Salesforce Ventures; Series B led by General Catalyst and co-led by Prosperity7”
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About The Role As Engineering Manager / Tech Lead for the Sandbox team at Together AI, you will lead and grow the team responsible for building the isolated, secure compute environments that power AI code execution across Together's platform. Together Sandbox provides the sandboxed execution layer that enables reinforcement learning workflows, LLM code interpreters, AI agents, and developer tooling to run safely and at scale.
This is a hybrid leadership role — equal parts technical leadership and people management . You will own the technical direction of the team while also building a high-performing engineering culture. You'll work closely with the team's Product Manager to develop and execute the roadmap, drive day-to-day project management, and collaborate with engineering leads across Together to ensure seamless integration with the broader platform.
You will inherit a team of 4 engineers (3 backend, 1 full-stack) and be responsible for hiring and onboarding 4 additional engineers to scale the team's capacity and capabilities.
About The Team The Together Sandbox team builds and operates Together AI's sandbox infrastructure: isolated, ephemeral compute environments where AI-generated code can run safely. The product serves both external customers via the Together Sandbox SDK and internal Together use cases, including code interpretation and reinforcement learning.
What The Team Builds
Key technical areas : gVisor, container orchestration, Kubernetes, Elixir backend services, TypeScript/Python SDKs, cloud infrastructure (AWS), API design, and systems reliability.
Requirements
Preferred
About Together AI Together AI is a research-driven artificial intelligence company. We believe open and transparent AI systems will drive innovation and create the best outcomes for society, and together we are on a mission to significantly lower the cost of modern AI systems by co-designing software, hardware, algorithms, and models. We have contributed to leading open-source research, models, and datasets to advance the frontier of AI, and our team has been behind technological advancement such as FlashAttention, Hyena, FlexGen, and RedPajama. We invite you to join a passionate group of researchers in our journey in building the next generation AI infrastructure.
Equal Opportunity Together AI is an Equal Opportunity Employer and is proud to offer equal employment opportunity to everyone regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, veteran status, and more.
Please see our privacy policy at https://www.together.ai/privacy
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