Together AI · 5 months ago
Senior Backend Engineer, Inference Platform
San Francisco
Full-time
Onsite
Senior Level
$160K/yr - $250K/yr
5+ years expTogether AI is a research-driven artificial intelligence company focused on building advanced generative AI models. The Senior Backend Engineer will be responsible for optimizing the Inference Platform, ensuring low-latency routing, developing auto-scaling systems, and collaborating with ML researchers to bring new models into production.
AI InfrastructureArtificial Intelligence (AI)Generative AIInternetIT InfrastructureOpen Source
Responsibilities
Build and optimize global and local request routing, ensuring low-latency load balancing across data centers and model engine pods
Develop auto-scaling systems to dynamically allocate resources and meet strict SLOs across dozens of data centers
Design systems for multi-tenant traffic shaping, tuning both resource allocation and request handling — including smart rate limiting and regulation — to ensure fairness and consistent experience across all users
Engineer trade-offs between latency and throughput to serve diverse workloads efficiently
Optimize prefix caching to reduce model compute and speed up responses
Collaborate with ML researchers to bring new model architectures into production at scale
Continuously profile and analyze system-level performance to identify bottlenecks and implement optimizations
Qualification
Required
5+ years of demonstrated experience building large-scale, fault-tolerant, distributed systems and API microservices
Strong background in designing, analyzing, and improving efficiency, scalability, and stability of complex systems
Excellent understanding of low-level OS concepts: multi-threading, memory management, networking, and storage performance
Expert-level programming in one or more of: Rust, Go, Python, or TypeScript
Bachelor's or Master's degree in Computer Science, Computer Engineering, or related field, or equivalent practical experience
Preferred
Knowledge of modern LLMs and generative models and how they are served in production is a plus
Experience working with the open source ecosystem around inference is highly valuable; familiarity with SGLang, vLLM, or NVIDIA Dynamo will be especially handy
Experience with Kubernetes or container orchestration is a strong plus
Familiarity with GPU software stacks (CUDA, Triton, NCCL) and HPC technologies (InfiniBand, NVLink, MPI) is a plus
Benefits
Competitive compensation
Startup equity
Health insurance
Other competitive benefits
Company
Together AI
Together AI is a cloud-based platform designed for constructing open-source generative AI and infrastructure for developing AI models.
201-500 employees
H1B Sponsorship
Together AI has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (19)
2024 (6)
2023 (3)
Funding
Current Stage
Growth StageTotal Funding
$533.5MKey Investors
Salesforce VenturesLux Capital
2025-02-20Series B· $305M
2024-03-13Series A· $106M
2023-11-29Series A· $102.5M
Leadership Team
Vipul Ved Prakash
Co-Founder & CEO
Kae Ike Lim
Executive Assistant to Co-Founder and CEO
Recent News
Dynamic Business
2026-01-20
2025-11-27
Company data provided by crunchbase