Staff Software Engineer — Network Development

Coreweaveu; Warszawa; On-site; PLN 369,000 - 493,000; Full time

Benefits offered by this job

Living Wage

Family-level Medical Insurance

Family-level Dental Insurance

Generous Pension Contribution

Life Assurance at 4x Salary

Critical Illness Cover

Employee Assistance Programme

Tuition Reimbursement

Work culture focused on innovative dis

Benefits may vary by location

Job summary

CoreWeave, a leading AI cloud provider, is seeking a Staff Software Engineer to design and build production software that automates and scales the network. You will own core platforms, write Python and Go, and set technical direction with a focus on reliability and observability.

You will collaborate with Network Engineering, Observability, Fleet Engineering, and HPC teams, mentor engineers, and participate in on-call rotations.

Qualifications

• 8+ years of professional software engineering experience building/operating production infrastructure, platforms, or backend systems at scale.
• Strong proficiency in Python and Go.
• Solid understanding of CI/CD
• Strong understanding of managing runtime health for services and applications at an enterprise level.

Responsibilities

• Own the design, development, and long-term health of platforms and services that automate the network, including provisioning and tooling.
• Plan and map complex projects months in advance with multiple parallel efforts.
• Lead technical direction through RFCs, design reviews, and architecture decisions.

Skills

Python

Go

CI/CD

Networking fundamentals

Linux

Education

Bachelor's in CS or related field

Tools

Ansible

Jinja

NetBox

Prometheus

Grafana

Job description

CoreWeave is The Essential Cloud for AI. Built for pioneers by pioneers, CoreWeave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, CoreWeave combines superior infrastructure performance with deep technical expertise to accelerate breakthroughs and turn compute into capability. Founded in 2017, CoreWeave became a publicly traded company (Nasdaq: CRWV) in March 2025. Learn more at www.coreweave.com.

We're proud to be a Living Wage accredited Employer.

What You'll Do:

CoreWeave runs one of the largest GPU clouds in the world, and the network underneath it has to be fast, reliable, and almost entirely self-operating. Our Network Development team builds the software that makes that possible. We design, build, and run the platforms and services that provision, configure, automate, monitor, and heal the network, so that the people relying on it rarely have to think about it.

About the role:

We are looking for a Staff Software Engineer to take ownership of these systems. This is a software engineering role at its core. You will spend most of your time designing and writing production software, setting technical direction, and raising the quality bar for the team. A solid understanding of networking fundamentals is required, but deep network engineering expertise is not. This role is about building the software that operates the network.

• Own the design, development, and long-term health of the platforms and services that automate the network, including config generation, device provisioning, workflow automation, observability tooling, and internal CLIs and APIs.
• Plan and map out complex projects months in advance, sequencing the work, anticipating dependencies, and keeping several efforts moving in parallel.
• Lead technical direction through RFCs, design reviews, and architecture decisions, and break ambiguous problems down into shippable work.
• Write well-tested, well-documented software in Python and Go, and set the standard for quality across the team through strong test cases, clear error handling, and solid CI/CD practices.
• Improve the reliability and operability of what we run by defining service-level indicators and objectives and relentlessly reducing manual toil through automation.
• Partner closely with Network Engineering, Observability, Fleet Engineering, and HPC teams so our automation fits cleanly into the wider system.
• Join the on-call rotation once you are ramped, and help drive calm, blameless follow-up when things break.
• Mentor other engineers, review code and designs, and help grow the technical skills of the team.
• Contribute to a positive, collaborative team and organizational culture.

Who You Are:

• 8 or more years of professional software engineering experience, ideally building and operating production infrastructure, platform, or backend systems at scale.
• Strong proficiency in Python and Go.
• Solid understanding and experience in CI/CD (testing, code review, maintaining continuous builds and deployments).
• Strong understanding of managing runtime health for services and applications at an enterprise level.
• A love of process automation and toil elimination, with hands‑on experience building workflow automation or orchestration systems and automated device provisioning at scale such as Zero Touch Provisioning.
• Strong planning skills, including the ability to lay out and drive projects across a multi‑month horizon while keeping several concurrent efforts moving as part of a team.
• Strong, well‑reasoned technical opinions, paired with genuine openness to better ideas and other people's input.
• A solid understanding of core networking fundamentals, including IP addressing and subnetting, routing/switching, NTP, and DNS.
• Comfort with Linux and Kubernetes, and experience with infrastructure automation tooling such as Ansible and Jinja, a source‑of‑truth or IPAM and DCIM system such as NetBox, and observability tooling such as Prometheus and Grafana.
• Excellent written communication, a habit of writing documentation other people can actually use, and experience mentoring engineers and collaborating across teams.

Preferred:

• A degree in Computer Science or a related field is a plus.

Wondering if you're a good fit?

We believe in investing in our people, and value candidates who can bring their own diversified experiences to our teams – even if you aren't a 100% skill or experience match. Here are a few qualities we've found compatible with our team. If some of this describes you, we'd love to talk.

• You explain the reasoning behind your technical choices, stay open to being convinced otherwise, and pick the right tool for the job rather than defending a favorite.
• You see a problem and solve it without waiting to be asked, and you always look for ways to make things easier, faster, and more secure.
• You treat problems as shared problems, keep incident culture blameless, and give credit generously.

Why CoreWeave?

At CoreWeave, we work hard, have fun, and move fast! We're in an exciting stage of hyper‑growth that you will not want to miss out on. We're not afraid of a little chaos, and we're constantly learning. Our team cares deeply about how we build our product and how we work together, which is represented through our core values:

• Be Curious at Your Core
• Act Like an Owner
• Empower Employees
• Deliver Best‑in‑Class Client Experiences
• Achieve More Together

We support and encourage an entrepreneurial outlook and independent thinking. We foster an environment that encourages collaboration and enables the development of innovative solutions to complex problems. As we get set for takeoff, the organization's growth opportunities are constantly expanding. You will be surrounded by some of the best talent in the industry, who will want to learn from you, too. Come join us!

The base salary range for this role (depending on office location) is £116,000 - £155,000 / €135,000 - €180,000 / PLN 369,000 - PLN 493,000. The starting salary will be determined based on job‑related knowledge, skills, experience, and market location. We strive for both market alignment and internal equity when determining compensation. In addition to base salary, our total rewards package includes a discretionary bonus, equity awards, and a comprehensive benefits program (all based on eligibility).

To fulfill our obligation to protect client data, successful applicants offered employment with CoreWeave will be required to complete a basic criminal record check, conducted in compliance with GDPR. Employment offers are conditional upon receiving satisfactory check results.

What We Offer

In addition to a competitive salary, we offer a variety of benefits to support your needs, including:

• Family‑level Medical Insurance
• Family‑level Dental Insurance
• Generous Pension Contribution
• Life Assurance at 4x Salary
• Critical Illness Cover
• Employee Assistance Programme
• Tuition Reimbursement
• Work culture focused on innovative disruption

Benefits may vary by location.

Equal Opportunity

CoreWeave is an equal opportunity employer, committed to fostering an inclusive and supportive workplace. All qualified applicants and candidates will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information.

Recruitment Agencies

CoreWeave does not accept speculative CVs. Any unsolicited CVs received will be treated as the property of CoreWeave and your Terms & Conditions associated with the use of CVs will be considered null and void.

Any unsolicited CVs sent by your company to us – that is to say, in any situation where we have not directly engaged your company in writing to supply candidates for a specific vacancy – will be considered by us to be a "free gift", leaving us liability for no fees whatsoever should we choose to contact the candidate directly and engage the candidate’s services, and will in no way establish any prior claim by your company to representation of that candidate should the candidate’s details also be submitted by any other party.

Export Control Compliance

This position requires access to export controlled information. To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.S.C. § 1157, or (iv) asylee under 8 U.S.C. § 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency. CoreWeave may, for legitimate business reasons, decline to pursue any export licensing process.