Software Engineer

CoreWeave•New York, NY

5d•$101,000 - $134,000•Onsite

About The Position

Applications Engineering, part of CoreWeave’s Data Infrastructure organization, builds the software CoreWeave uses to plan and operate its own infrastructure business. Some of that is UNION, our data platform, where anyone in the company can query the lakehouse in plain language and stand up their own dashboards, applications, and agents. The rest is the applications behind decisions like which data centers get which hardware and when, for a company adding gigawatts of capacity a year. Engineering, finance, supply chain, and data center operations all depend on what we ship.

Requirements

2+ years building production software, or equivalent depth from internships and substantial projects
Working proficiency in a backend language, Python preferred, and in JavaScript or TypeScript
Experience building web frontends with a modern framework such as React or Next.js
Experience building or consuming HTTP APIs in something that ran in production
Working SQL, including writing and debugging joins and aggregations against a relational database
Some exposure to AI and LLM development, such as prompting, retrieval, tool calling, or agents
Familiar with version control, code review, automated testing, and CI/CD

Nice To Haves

Experience with containers and deployment tooling such as Docker, Helm, or Kubernetes
Exposure to data platforms and analytical databases such as Spark, StarRocks, Snowflake, or BigQuery
Experience building AI-native features such as text-to-SQL interfaces, copilots, or insight generation
Experience building internal tools that other people relied on day to day
You want the people using your software to be people you know by name, and you take it personally when it gets in their way
You want a piece of the product that is yours to own end to end, from the first conversation with a user to the thing running in production
You work well at speed. Priorities here move with the business, and the problems worth solving tend to arrive on short notice
When you build an AI feature, you want a way to tell whether it is wrong before a user finds it
You want to understand the process you are building for, not just the ticket that describes it

Responsibilities

Ship features in UNION and in the applications teams run their processes on, working across the stack: TypeScript with React and Next.js in the browser, Python services running on Kubernetes, and the queries and data models underneath.
Take one scoped piece at a time and carry it to production yourself, tests and post-release fixes included, working next to a senior engineer who owns the wider area.
Hear from users directly and see your work change how they work within a week or two.