Jobs · greenhouse:xai
Backend Engineer - API
Cobalt Streamworks · London, England, United Kingdom · Posted 3d ago
Available in 2 locations
London Apply → London, England, United Kingdom · onsite Apply →About the role
As a Backend Engineer at SpaceXAI, you will build the API that serves models to developers globally, focusing on high-throughput inference and low latency. The role requires expertise in Rust or C++, and experience with distributed systems and databases like PostgreSQL and MongoDB.
Read the full posting on greenhouse:xai →
Why this role stands out
- ★Equity is part of the package
- ★equity
- ★comprehensive healthcare and dental coverage
Responsibilities
- ▸Build the xAI API that serves models to developers worldwide
- ▸Own the end-to-end system for high-throughput inference
- ▸Handle billions of tokens per minute with low latency
- ▸Manage model serving infrastructure, request routing, and SDK development
Must-have skills
- ▸rust
- ▸c++
- ▸distributed systems
- ▸service observability
- ▸reliability best practices
- ▸postgresql
- ▸clickhouse
- ▸mongodb
Nice-to-have skills
- ▸llm inference engines
- ▸serving frameworks
- ▸sglang
- ▸tensorrt
- ▸vllm
- ▸agent sdks
- ▸agent orchestration
- ▸docker
- ▸kubernetes
- ▸grpc
Benefits
- ▸equity
- ▸comprehensive healthcare and dental coverage
- ▸cash plan
- ▸income protection
- ▸life insurance
- ▸various other discounts and perks
FAQ
Is the Backend Engineer - API role at Cobalt Streamworks remote?+
This Backend Engineer - API position is listed as onsite (London, England, United Kingdom).
What is the salary for the Backend Engineer - API role at Cobalt Streamworks?+
The listing states £107,000 - £262,000 GBP.
What seniority level is this Backend Engineer - API role?+
This is a unknown level position.
What skills does the Backend Engineer - API role require?+
Key requirements include rust, c++, distributed systems, service observability, reliability best practices, postgresql, clickhouse, mongodb.
How do I apply for the Backend Engineer - API role at Cobalt Streamworks?+
Use the "Apply on greenhouse:xai" button to open the original posting on greenhouse:xai, where you can submit your application directly to Cobalt Streamworks.