Software Engineer

CoreWeave • Philadelphia, NJ

13d

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. You will 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. Some of it is AI-facing, like the natural language interfaces and agents people use to ask questions against governed data. You will 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. The people using it work here, so you will hear from them directly and see your work change how they work within a week or two.

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

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.

Benefits

• Medical, dental, and vision insurance - 100% paid for by CoreWeave
• Company-paid Life Insurance
• Voluntary supplemental life insurance
• Short and long-term disability insurance
• Flexible Spending Account
• Health Savings Account
• Tuition Reimbursement
• Ability to Participate in Employee Stock Purchase Program (ESPP)
• Mental Wellness Benefits through Spring Health
• Family-Forming support provided by Carrot
• Paid Parental Leave
• Flexible, full-service childcare support with Kinside
• 401(k) with a generous employer match
• Flexible PTO
• Catered lunch each day in our office and data center locations
• A casual work environment
• A work culture focused on innovative disruption

What This Job Offers

• Job Type: Full-time
• Career Level: Entry Level
• Education Level: No Education Listed