Staff Software Engineer, Inference

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

Benefits offered by this job

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 innovation

Job summary

CoreWeave is seeking a Staff Software Engineer for the Inference team in Warsaw to lead architecture, performance, and reliability of a Kubernetes-native inference platform powering AI workloads. You will guide cross-team initiatives, optimize for latency, and drive cost-per-token improvements with advanced techniques.

You will implement optimisations, build benchmarking frameworks, and mentor engineers, while shaping high-impact engineering practices and observability across CoreWeave.

Qualifications

• Bachelor's degree in CS/engineering or equivalent practical experience.
• 8+ years building large-scale distributed systems or cloud platforms.
• Strong coding in Go, Python, or C++.
• Deep Kubernetes production experience.
• Strong understanding of networked systems and performance optimization.
• Hands-on with inference systems including batching and caching.
• Experience improving tail latency and reliability with metrics-driven engineering.

Responsibilities

• Define and drive architecture across multiple teams and services.
• Improve performance, reliability, and observability of the Kubernetes-based inference platform.
• Lead cross-cutting design initiatives (routing, scheduling, resource management, cost-per-token).
• Implement advanced inference optimisations (speculative decoding, KV-cache reuse).
• Establish benchmarking frameworks and cross-functional alignment across infra boundaries.

Skills

Go

Python

C++

Kubernetes

Distributed systems

Networking

Inference systems

SLIs/SLOs

Autoscaling

Education

Bachelor's degree in CS/Engineering

Tools

CUDA

NCCL

RDMA

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's Inference team builds and operates the core cloud platform powering massive-scale GPU workloads for AI/ML, VFX, rendering, and real-time inference. Our stack is engineered for speed, scale, and cost efficiency—providing a powerful alternative to traditional hyperscalers where infrastructure is our core product operated at massive scale.

About The Role

As a Staff Software Engineer on the Inference team, you will operate as a technical leader across multiple teams and services, driving architecture, performance, and reliability for CoreWeave's Kubernetes-native inference platform. You will define and lead complex, cross-cutting design initiatives spanning request routing, adaptive scheduling, GPU resource management, and cost-per-token optimisation under strict P99 SLAs. In this high-impact role, you will implement advanced inference optimisations—such as speculative decoding and KV-cache reuse—while establishing performance benchmarking frameworks, guiding cross-functional alignment across infrastructure boundaries, and raising the bar for engineering rigour and observability practices across the organisation.

Who You Are

• Bachelor's degree in Computer Science, Engineering, or a related technical field (or equivalent practical experience).
• 8+ years of experience building large-scale distributed systems or cloud platforms, with a proven track record of leading cross-team or organisation-level technical initiatives at scale.
• Strong coding proficiency in Go, Python, or C++.
• Deep expertise in Kubernetes at production scale, including orchestration, scheduling, and service design.
• Strong understanding of networked systems, performance optimisation, and distributed system design.
• Hands‑on engineering experience with inference systems, including batching/micro-batching strategies, caching, memory optimisation, mixed precision (BF16/FP8), and streaming token delivery.
• Demonstrated ability to systematically improve tail latency (P95/P99) and platform reliability through metrics-driven engineering.
• Proven experience owning system-wide SLIs/SLOs, capacity planning, autoscaling strategies, and mentoring senior and mid-level engineers.

Preferred

• Direct open‑source or production contributions to modern inference frameworks (e.g., vLLM, Triton, TensorRT-LLM, Ray Serve, or TorchServe).
• Deep experience with GPU systems engineering and hardware performance optimisation (e.g., CUDA, NCCL, RDMA, NUMA, or GPU interconnects).
• Direct exposure to large-scale AI/ML infrastructure or hyperscale cloud environments.

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.

• You love to: Scale highly complex distributed architectures and mentor engineering cohorts to elevate technical standards across an organisation.
• You're curious about: Pioneering low‑latency inference optimisations and finding innovative shortcuts to optimise cost-per-token performance.
• You're an expert in: Metrics-driven engineering, troubleshooting micro‑bottlenecks, and delivering stable cloud platforms under strict multi‑tenant constraints.

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:

About

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

Compensation

The base salary range for this role is 369,000 PLN to 493,000 PLN gross annually. 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 programme (subject to eligibility).

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.

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.

• 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.

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