Senior RF engineer

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

Benefits offered by this job

Competitive salary

Hybrid setup

Pension plan

L&D budget

Team events

Job summary

QuantWare is seeking a Senior RF engineer to own the end-to-end design of flex interconnects for its VIO platform. You will drive architecture, verification, and high-volume manufacturing while balancing RF performance, mechanical reliability, and cryogenic considerations.

You will lead cross-functional teams, manage external vendors, and push for co-development partnerships to meet ambitious R&D goals. This role blends hardware design with project leadership in a hybrid setup.

Qualifications

• 4+ years of hands-on experience in RF engineering, signal integrity, or high-frequency interconnect design.
• Experience with RF simulation software (HFSS, CST, ADS) and RF test equipment (VNAs, spectrum analyzers, TDR).
• Proven track record leading hardware or R&D projects from concept to volume production.
• Vendor co-development experience with external partners or suppliers.
• Cross-functional leadership and strong communication to align multi-disciplinary teams.

Responsibilities

• Drive full flex interconnect architecture lifecycle from concept through verification to high-volume manufacturing.
• Maintain signal integrity and RF performance with mechanical reliability and thermal management.
• Manage external vendors and translate RF/mechanical specs into clear requirements.
• Own supplier development schedules and ensure timely delivery while maintaining quality.
• Lead and mentor the engineering team dedicated to flex interconnect development and RF integration.

Skills

RF engineering

Signal integrity

High-frequency interconnect design

HFSS

CST

ADS

VNA

Spectrum Analyzers

TDR

Vendor management

Cross-functional leadership

Tools

HFSS

CST

ADS

VNAs

Spectrum Analyzers

TDR

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.

Don’t tick every box? Apply anyway. We know great candidates don’t always follow a straight path, and we value diverse experience, perspectives, and ways of thinking. If this role excites you and you believe you can make an impact, we’d love to hear from you!

What We Offer:

At QuantWare, you’ll be part of a high‑performing team of world‑class experts in an ambitious, fast‑moving environment. From day one, you’ll have the trust, tools, and support to do your best work. Here’s what you can expect:

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.