--- title: 'Platform Engineer, Model Shaping at Together AI' canonical: 'https://feeny.ai/job/platform-engineer-model-shaping-together-ai-san-francisco-n4mt62hrat3n' type: 'job' last_seen: '2026-09-11' --- # Platform Engineer, Model Shaping at Together AI - **Company:** Together AI - **Location:** San Francisco, CA - **Posted:** 2025-07-16 - **Last confirmed live:** 2026-09-11 - **Apply:** https://job-boards.greenhouse.io/togetherai/jobs/4790243007 ## Job description ## About the Role The Model Shaping team at Together AI works on products and research for tailoring open foundation models to downstream applications. We build services that allow machine learning developers to choose the best models for their tasks and further improve these models using domain-specific data. In addition to that, we develop new methods for more efficient model training and evaluation, drawing inspiration from a broad spectrum of ideas across machine learning, natural language processing, and ML systems. As a Platform Engineer in Model Shaping, you will work at the intersection of backend engineering and infrastructure, building the foundational layers of Together’s platform for model customization and evaluation. You will design, develop, and operate both the backend services and the underlying systems that enable us to sustainably and reliably scale production workflows launched by our users, as well as internal research experiments. You will operate in a cross-functional environment, collaborating with other engineers and researchers in the team to improve the infrastructure based on the needs of projects they work on. You will also interact with other engineering teams at Together (such as Commerce, Data Engineering, and Cloud Infrastructure) to integrate the services developed by Model Shaping with systems developed by those teams. ## Responsibilities - Design and build Together’s systems and infrastructure for model customization, including user-facing features and internal improvements - Contribute to reliability improvements for the platform, participating in an on-call rotation and improving processes for incident response - Create and improve internal tooling for deployment, continuous integration, and observability - Build a job orchestration platform spanning multiple datacenters, supporting a highly heterogeneous hardware landscape - Partner with teams developing internal services, co-designing these services and incorporating them in systems built within Together ## Requirements - 3+ years of experience in building infrastructure or backend components of production services - Extensive experience designing, operating, and troubleshooting production Linux environments and Kubernetes-based platforms - Strong software engineering background in Python or Go - Experienced with infrastructure automation tools (Terraform, Ansible), monitoring/observability stacks (Prometheus, Grafana), and CI/CD pipelines (GitHub Actions, ArgoCD) - Cloud environment (e.g., AWS/GCP/Azure) administration experience, preferably with a hybrid bare-metal/cloud environment - Strong communication skills, be willing to document systems and processes and collaborate with peers of varying technical expertise - Comfortable operating across the stack, from cluster operations and infrastructure automation to backend service development Experience in any of the following will make you stand out: - Developing large-scale production systems with high reliability requirements - Pipeline orchestration frameworks (e.g., Kubeflow, Argo Workflows, Flyte) - Managing GPU workloads on HPC clusters, ideally with hands-on experience in operating NVIDIA’s networking stack (e.g., NCCL, Mellanox firmware, GPUDirect RDMA) - Deployment of services for AI training or inference - Networking fundamentals, including TCP/IP, DNS, routing, load balancing, TLS, and network debugging tools - Maintaining or contributing to open-source projects ## About Together AI Together AI, the AI Native Cloud, is purpose-built for AI engineers. AI application developers get high-performance inference that scales reliably, fine-tuning and reinforcement learning for creating frontier-level specialized models, and pre-training at massive scale for fully custom intelligence, all around a marketplace of leading open models that teams can run, adapt, and own. Trusted by Cursor, Decagon, ElevenLabs, Salesforce, and Zoom, Together serves 400+ trillion tokens a month. ## Compensation We offer competitive compensation, startup equity, health insurance, and other benefits, as well as flexibility in terms of remote work. The US base salary range for this full-time position is $200,000 - $290,000. Our salary ranges are determined by location, level and role. Individual compensation will be determined by experience, skills, and job-related knowledge. ## 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 ## About Together AI ## Company Overview - **One-liner**: Together AI is the AI Native Cloud, a full-stack platform for production AI that provides inference, fine-tuning, and GPU compute powered by cutting-edge systems research. - **Entity Type**: Private (Series C) - **Headquarters**: San Francisco, California, United States - **Founded**: 2022 - **Founders**: Vipul Ved Prakash (CEO), Ce Zhang (CTO), Tri Dao (Chief Scientist), Chris Ré, Percy Liang ## Core Business - **Primary industry**: AI Infrastructure / Cloud Computing - **Target customers**: B2B – AI-native startups (e.g., Cursor, Decagon, Eleven Labs), enterprise SaaS (Salesforce, Zoom, Zomato), and AI researchers. - **Mission**: “Significantly lower the cost of modern AI systems by co-designing software, hardware, algorithms, and models” — with a commitment to open and transparent AI development. ## Products & Services - **Serverless Inference**: Fast on-demand inference for open-source models with no infrastructure management. - **Batch Inference**: Asynchronous processing of massive workloads (up to 30B tokens per model) at reduced cost. - **Dedicated Model Inference**: Deploy models on dedicated GPU infrastructure for speed and control. - **Dedicated Container Inference**: GPU infrastructure optimized for generative media (video, audio, image). - **Fine-Tuning**: Fine-tune open-source models using latest research techniques (improves accuracy, reduces hallucinations). - **Accelerated Compute**: Self-serve instant clusters to thousands of GPUs, optimized with Together Kernel Collection. - **Model Shaping**: Tools to accelerate inference, model shaping, and pre-training. - **Managed Storage**: High-performance object storage and parallel filesystems with zero egress fees. - **Sandbox**: Fast, secure code sandboxes for AI app/agent development environments. ## Market Standing - **Valuation/Market Cap**: Not publicly disclosed; recent Series C reportedly doubled valuation (amount undisclosed) [cbinsights.com](https://www.cbinsights.com/company/together-4) - **Key Metric**: **Total Funding** – $1.334B (including $800M Series C announced in mid-2026) [cbinsights.com](https://www.cbinsights.com/company/together-4) - **Notable Investors/Partners**: Kleiner Perkins, NVIDIA, Salesforce Ventures, Prosperity7 Ventures (Aramco), and 29+ others across rounds. - **Growth Signals**: - Headcount grew 91% YoY to ~280 employees [linkedin.com](https://www.linkedin.com/company/togethercomputer) - Acquired CodeSandbox (Dec 2024) and Refuel.AI (May 2025) - Customers include Cursor, Decagon, Eleven Labs, AI21, Hedra, Cartesia, Salesforce, Zoom, Zomato - Published nine papers at ICML 2026; open-sourced ParallelKernelBench ## Competitive Advantages - **Full-stack AI platform** covering inference, fine-tuning, compute, storage, and sandboxes — all integrated. - **World-class research team** co-designing algorithms, kernels, and hardware (e.g., Tri Dao, co-inventor of FlashAttention). - **Open-source commitment** and contributions (models, datasets, research) build developer trust and ecosystem lock-in. - **Cost performance**: Claims 2x faster inference and 60% lower cost vs. alternatives through research-driven optimizations. ## Strategic Focus - Accelerate the shift to open-source AI by making it economically viable at scale. - Continue investing in systems research (GPU programming, kernel optimization, model shaping) to improve performance and cost. - Expand enterprise adoption through dedicated deployments and partnerships. - Grow the platform’s capabilities (e.g., managed storage, sandboxes) to reduce friction for AI-native builders. ## Why Work Here - **Culture**: Values include “Do more with less,” “Open and responsible development,” “Empower innovation,” and “Optimizers” — a research-driven, mission-oriented environment. - **Remote/Hybrid/Office**: Primarily office-based in San Francisco (251 Rhode Island Street) with employees across 16 countries. Office perks include lunch, dinner, snacks, parking/transit stipends, and relocation support. - **Benefits**: Competitive salary and equity, 401K matching, health/dental/vision insurance, flexible PTO, generous parental leave, life and disability protection. - **Engineering Culture**: Deep focus on systems research and open-source; engineers work alongside leading AI researchers (e.g., Tri Dao, Ce Zhang). Talent sourced from Apple, Google, Amazon, NVIDIA, Stanford AI Lab. - **Career Growth**: 53 active job postings (as of mid-2026); roles span ML engineering, platform engineering, research, and go-to-market. High growth trajectory offers rapid advancement. ## Sources 1. [together.ai/about-us](https://www.together.ai/about-us) 2. [together.ai/](https://www.together.ai/) 3. [together.ai/careers](https://www.together.ai/careers) 4. [linkedin.com/company/togethercomputer](https://www.linkedin.com/company/togethercomputer) 5. [cbinsights.com/company/together-4](https://www.cbinsights.com/company/together-4) ## Other roles at Together AI - [Staff Engineer, Distributed Storage and HPC & AI Infrastructure](https://feeny.ai/job/staff-engineer-distributed-storage-and-hpc-ai-infrastructure-together-ai-qmwmf2cw8b8j) — Bengaluru, India - [Senior ABM & Campaign Manager](https://feeny.ai/job/senior-abm-campaign-manager-together-ai-san-francisco-b4m47ckm79bn) — San Francisco, CA - [Technical Support Engineer - India](https://feeny.ai/job/technical-support-engineer-india-together-ai-pune-or-bangalore-mwn804cwswws) — Pune OR Bangalore, India - [Senior Software Engineer — Infra Agent Systems](https://feeny.ai/job/senior-software-engineer-infra-agent-systems-together-ai-san-francisco-xc82f200r1ws) — San Francisco, CA - [Senior ABM & Campaign Manager](https://feeny.ai/job/senior-abm-campaign-manager-together-ai-san-francisco-zc1zxaar2h1f) — San Francisco, CA - [Senior Software Engineer — Infra Agent Systems](https://feeny.ai/job/senior-software-engineer-infra-agent-systems-together-ai-amsterdam-0kn67tn8tkvp) — Amsterdam, Netherlands - [Senior Software Engineer — Infra Agent Systems UK](https://feeny.ai/job/senior-software-engineer-infra-agent-systems-uk-together-ai-london-bxf797ge7pxk) — London, United Kingdom - [Senior Software Engineer — Infra Agent Systems Remote India](https://feeny.ai/job/senior-software-engineer-infra-agent-systems-remote-india-together-ai-india-4y1jwwt42nqs) — India - [HR Coordinator- Amsterdam](https://feeny.ai/job/hr-coordinator-amsterdam-together-ai-amsterdam-e41wg9k2gakq) — Amsterdam, Netherlands - [Staff Software Engineer, Inference / Compute Infrastructure Engineering](https://feeny.ai/job/staff-software-engineer-inference-compute-infrastructure-engineering-together-5j8djmf3gdbk) — London, United Kingdom