Senior RF engineer

QuantWare BV; Netherlands; On-site; EUR 90,000 - 120,000; Full time

Benefits offered by this job

Competitive salary

8% holiday allowance

Pension plan

Hybrid work setup

Learning & development budget

Team events

Job summary

QuantWare BV is seeking a Senior RF engineer to own the end-to-end design, verification, and scaling of flex interconnects for the VIO technology. You will bridge RF engineering with hands-on project management, oversee vendor partnerships, and drive high‑frequency performance while balancing manufacturability.

You will lead cross‑functional teams, set rigorous specifications, and manage timelines to deliver on QuantWare's R&D roadmap, with a hybrid work model and focus on innovation.

Qualifications

• 4+ years hands-on RF engineering, signal integrity, or high-frequency interconnect design.
• Experience with RF simulation software and RF measurement equipment.
• Proven track record leading hardware or R&D projects from concept to production.
• Experience managing external vendors and partner programs.
• Desirable: hardware for superconducting circuits and cryogenic environments.

Responsibilities

• Drive the full lifecycle of flex interconnect systems across product generations.
• Maintain high signal integrity and RF performance while ensuring reliability.
• Manage vendor co-development and translate specs into clear requirements.
• Lead, mentor, and grow an engineering team dedicated to flex interconnects.
• Coordinate supplier development schedules and align with QuantWare's roadmap.

Skills

RF engineering

Signal integrity

High-frequency interconnect design

HFSS/CST/ADS

VNAs/TDR

Cross-functional leadership

Tools

HFSS

CST

ADS

Job description

About Us

QuantWare is building the world’s most powerful quantum processors to solve humanity's greatest challenges. We do this with our unique VIO™ technology, the only QPU architecture that breaks the hardware barriers that have held quantum computing back, unlocking the path to MegaQubit quantum processors.

With VIO, we are paving the way for the hyper‑scale quantum computers that will change the world. And delivering on that vision demands people who don’t shy away from tackling the hardest challenges of our time. That’s where you come in!

As the Senior RF engineer, you will take full ownership of the end-to-end design, verification, and scaling of our critical flex cable interface, a foundational hardware component of our core VIO technology. In this pivotal role, you will bridge cutting‑edge RF engineering with hands‑on project management. Because this technology relies heavily on strategic vendor partnerships, you will serve as the primary technical interface driving co‑innovation, setting rigorous specifications, and managing deliverable timelines. You will lead cross‑functional engineering efforts to balance high‑frequency RF performance, mechanical reliability, and high‑volume manufacturability to support our R&D roadmap.

What you’ll be doing

• Drive Flex Architecture: Drive the full lifecycle of flex interconnect systems across product generations, from early‑stage conceptualization through verification, qualification, and high‑volume manufacturing.
• RF & Mechanical Optimization: Maintain high signal integrity and RF performance while ensuring long‑term mechanical reliability, durability, and thermal performance.
• Vendor Management: Work directly with external partners and suppliers to push the boundaries of flex design and manufacturing capabilities. Translate complex RF, mechanical, and system‑level specs into unambiguous technical requirements for vendors, secure clear partner commitments.
• Timeline Execution: Ownership of supplier development schedules, ensuring critical components are delivered on time without compromising quality or yield. Drive internal project execution, setting schedule milestones, tracking deliverables, and keeping the team accountable to QuantWare's roadmap.
• Direct Line Leadership: Lead, mentor, and grow an engineering team dedicated to flex interconnect development and RF integration.

Your Profile

• 4+ years of hands‑on experience in RF engineering, signal integrity, or high‑frequency interconnect design (e.g., flex circuits, rigid‑flex, micro‑coaxial interfaces). Deep hands‑on experience with standard RF simulation software (HFSS, CST, ADS, or equivalent) and RF measurement equipment (VNAs, Spectrum Analysers, TDR).
• Proven Track Record: Demonstrated success leading hardware or R&D engineering projects from initial concept through verification to volume production.
• Vendor Co‑Development: Direct experience managing external vendors, JDM partners, or component suppliers to deliver complex custom electro‑mechanical parts.
• Cross‑Functional Leadership: Exceptional communication and alignment skills, ability to direct and influence multi‑disciplinary teams without formal direct‑report authority.
• Experience designing hardware for superconducting circuits and cryogenic environments is a bonus.

What We Offer

• Competitive salary - A salary that reflects the impact and importance of the role (and of course 8% holiday allowance)
• Pension that’s built to last - A generous and future‑proof pension plan that includes partner and dependent coverage.
• Flexibility built on trust - We focus on outcomes. Work flexibly, in a hybrid setup, with an open vacation policy that lets you manage your time
• Personal growth - We invest in your L&D, with a budget available to each team member, dependent on their individual ambitions, development needs, and performance
• A connected team - We make space to celebrate wins together, with team events, offsites, and spontaneous moments that bring us closer

Diversity & Inclusion at QuantWare

We’re an ambitious company, not only for our goals but also to become an even more diverse and inclusive team. We know this helps us with better decisions, more innovation, and strengthens our culture. In particular, we’d love to see more women in the quantum industry!

So if you’re a female talent, excited about this opportunity but don’t meet every single requirement, we still encourage you to apply.

As part of our recruitment process, candidates may be required to undergo pre‑employment screening.