Senior Backend Engineer, Inference Platform (Equity)

Together Computer Inc; San Francisco (CA); On-site; USD 200,000 - 290,000; Full time

Benefits offered by this job

Equity

Health insurance

Competitive base salary

Job summary

Together AI in San Francisco, US, is seeking a Senior Backend Engineer for the Inference Platform. You will design and optimize the core inference backbone powering frontier models, tackling global routing, load balancing, and resource management at scale.

Work with researchers and open-source communities, leverage SGLang, vLLM, and NVIDIA Dynamo, and push performance and efficiency while maintaining strong fault tolerance and low latency.

Qualifications

• 5+ years of 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.
• Expert-level programming in Rust, Go, Python, or TypeScript.

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 to ensure fairness and consistent experience.
• 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.

Skills

Distributed systems

APIs & microservices

Low-level OS concepts

Rust / Go / Python / TypeScript

Education

Bachelor’s or Master’s in CS/CE or related field

Tools

Kubernetes

SGLang

vLLM

NVIDIA Dynamo

Job description

Together AI in San Francisco, US, is seeking a Senior Backend Engineer for the Inference Platform. You will design and optimize the core inference backbone powering frontier models, tackling global routing, load balancing, and resource management at scale.

Work with researchers and open-source communities, leverage SGLang, vLLM, and NVIDIA Dynamo, and push performance and efficiency while maintaining strong fault tolerance and low latency.