---
title: 'Senior Product Engineer, Fullstack at Together AI'
canonical: 'https://feeny.ai/job/senior-product-engineer-fullstack-together-ai-san-francisco-3mwfy94q6xb7'
type: 'job'
last_seen: '2026-10-16'
---

# Senior Product Engineer, Fullstack at Together AI

- **Company:** Together AI
- **Location:** San Francisco, CA
- **Posted:** 2026-07-27
- **Last confirmed live:** 2026-10-16
- **Apply:** https://job-boards.greenhouse.io/togetherai/jobs/5192898007

## Job description

## About the Role

Together AI's product is what developers touch every day — Playground, Model Garden, Fine-Tuning, File Management, Batch Processing, Model Evals. These surfaces are how users experience the platform, and they need to be fast, intuitive, and something developers genuinely love using. That's what this role is about.

We're growing the Product Engineering team and looking for a fullstack engineer who's motivated by shipping things users genuinely value — not features that just look good in a slide deck. You'll plug directly into new and existing workstreams and start shipping quickly, working across our core product surfaces to improve existing capabilities and build new ones.

This is a high-ownership role on a small, fast-moving team, where one strong engineer moves the needle visibly. You'll see your work in production, instrument and measure it, and use that to shape what comes next.

## Responsibilities

- Ship improvements and new capabilities across Together AI's core product surfaces — Playground, Model Garden, Fine-Tuning, File Management, Batch Processing, and Model Evals
- Own projects and features end-to-end, from data model and API integration through the user interface
- Collaborate closely with other engineers to build clean, typed, reusable interfaces in our web application
- Instrument and measure what you ship — add product analytics, monitor system health, and prove users are getting value with data
- Work across design, product, and engineering to ship things that unlock user value
- Raise the bar on frontend and fullstack quality across the team through code review and collaborative architecture decisions

## Requirements

- 4–7 years of experience building and shipping real product to real users
- Strong JavaScript/TypeScript fundamentals; TypeScript experience highly valued
- Strong React expertise in a large-scale, production environment
- Full-stack fluency: you connect the dots from data model to API design to state management to the UI, and know how to make the right call at each layer in service of clean, maintainable code and an intuitive user experience
- A pragmatic approach to engineering — you know when to move fast and when to slow down, and you make that call based on user value
- Curiosity about AI and LLMs — you want to understand the models and products you're building on top of, not just the code around them
- Adept at building and improving agentic workflows, with good judgment for when to lean on AI and when not to
- Cross-functional "we ship it" mentality — no narrow ownership, no finger-pointing
- Next.js, Tailwind, and shadcn/ui experience is a plus
- Familiarity with product analytics (e.g., Amplitude) and systems monitoring (e.g., Grafana) is a plus
- Experience with CI/CD workflows is a plus
- Experience with a backend language like Go or Python

## 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 competitive benefits. The US base salary range for this full-time position is: $160,000 - 230,000 + equity + benefits. 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 athttps://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 Software Engineer - AI Compute, Together Cloud](https://feeny.ai/job/staff-software-engineer-ai-compute-together-cloud-together-ai-amsterdam-nv5hy62cgmav) — Amsterdam, Netherlands
- [Technical Sourcer - Engineering](https://feeny.ai/job/technical-sourcer-engineering-together-ai-san-francisco-pa1pq0f550v9) — San Francisco, CA
- [Hardware Security Engineer, New Grad (2027)](https://feeny.ai/job/hardware-security-engineer-new-grad-2027-together-ai-san-francisco-s419smrdayz5) — San Francisco, CA
- [Hardware Security Engineer Intern (Summer 2027)](https://feeny.ai/job/hardware-security-engineer-intern-summer-2027-together-ai-san-francisco-qq061fbx42jz) — San Francisco, CA
- [Director of Investor Relations](https://feeny.ai/job/director-of-investor-relations-together-ai-san-francisco-d0fhjhq6dd9r) — San Francisco, CA
- [Sr. Partnerships Manager, US Model Labs](https://feeny.ai/job/sr-partnerships-manager-us-model-labs-together-ai-san-francisco-mja31t2wy73a) — San Francisco, CA
- [Senior Partner Marketing Manager](https://feeny.ai/job/senior-partner-marketing-manager-together-ai-san-francisco-5bmgss4dft33) — San Francisco, CA
- [Field Marketing & Community Manager](https://feeny.ai/job/field-marketing-community-manager-together-ai-san-francisco-rn8r0fpna794) — San Francisco, CA
- [Senior Recruiter, GTM & Business](https://feeny.ai/job/senior-recruiter-gtm-business-together-ai-san-francisco-wp8ngndvhfdy) — San Francisco, CA
- [Staff Software Engineer - AI Compute, Together Cloud](https://feeny.ai/job/staff-software-engineer-ai-compute-together-cloud-together-ai-san-francisco-egf3h6r021mj) — San Francisco, CA