Product Design Engineer II

Loop; Amsterdam; Hybrid; EUR 65,000 - 90,000; Full time

Benefits offered by this job

32 vacation days

Hybrid work model

Job summary

Loop is seeking a Product Design Engineer II to own the mechanical design of subassemblies from concept to mass production. You will partner with Electrical Engineering, Sourcing, and contract manufacturers to ensure robust, manufacturable designs and on-time delivery.

You will lead DFM and validation efforts, write clear drawings, and drive ECOs in Arena, while balancing performance, cost and manufacturability. Hybrid work options apply.

Qualifications

• 5+ years designing injection-moulded parts for high-volume consumer products.
• Experience taking designs through mass production.
• Strong fundamentals in tolerances, fits, materials and cosmetic finish.
• Experience collaborating with CMs/ ODMs through tooling, build, and ramp.

Responsibilities

• Own mechanical design for assigned subassemblies from concept through mass production.
• Lead DFM reviews and tolerance analysis.
• Execute EVT, DVT and PVT builds and iterate based on test results.
• Collaborate with CMs/ ODMs on tooling, sampling and production readiness.
• Author and own 2D drawings and specifications.
• Drive ECOs and change control in Arena.
• Communicate drawing releases across engineering, sourcing and manufacturing.

Skills

Component-level design

DFM and validation

Cross-functional collaboration

Tolerance analysis

Material selection

Independent decision making

Prototyping and test interpretation

AI in design

Tools

Onshape

Arena

2D drawings

GD&T experience

Job description

Product Design Engineer II

Location: Antwerp or Amsterdam

Experience: 5+ years designing injection-moulded parts for high-volume consumer products, with at least one taken through mass production

Own component-level mechanical design and help turn robust designs into manufacturable products.

This isn't a lateral move. We built Loop by going all in from day one. Loop makes products people wear in their ears, by the million. Mechanical design here is never only about whether something works — fit, feel, robustness, cosmetics, tolerances, material choice and manufacturability all decide whether a part is right. A 0.1 mm call can be the difference between a product people love and one that comes back to us. You'll own the mechanical design of assigned subassemblies from concept through mass production, balancing performance, cost, robustness and manufacturability. All yours. If you've mastered component-level mechanical design and you're ready to break the rules that no longer work, this is where you do it.

The role

You step into ownership. You move fast and take responsibility for what you build. You focus on work that matters, not on noise that slows things down.

You'll own mechanical design for specific subsystems, lead DFM and validation, and work closely with Electrical Engineering, Sourcing, and our CMs and ODMs to get designs ready for mass production.

This is hands-on product development. We're in the office daily because builds, prototypes, reviews and the conversations around them are a real part of the work. There's flexibility to work from home a couple of days a week when the workload allows it.

Overseas travel to CMs or ODMs is typically once or twice a year, around a week at a time, depending on the program.

What you’ll do

• You own mechanical design for assigned subassemblies from concept through mass production

• You conduct design reviews and lead tolerance analysis

• You execute EVT, DVT and PVT builds, analyse test failures, and iterate based on what you learn

• You partner with CMs and ODMs on DFM reviews, tooling, Golden Sample alignment and production readiness

• You author and own 2D drawings and specifications

• You drive ECOs, drawing releases and change control in Arena

• You finalise part designs for the components you own, selecting materials, finishes and part construction with input from Sourcing and the CM

• You approve drawing releases for BOM-level parts and communicate clearly across engineering, sourcing and manufacturing partners

• You work in Onshape as our core mechanical CAD environment

What you decide, and what you align on

You decide: part design, material and finish, tolerance scheme, and drawing release for the parts you own.

You align before you commit on anything that moves cost, tooling, timeline or another team's scope — with Sourcing, Electrical Engineering, Quality, and the CM.

Your work is independent. Your decisions aren't a surprise to the people they land on.

How you’ll succeed

We look for people who think big, stay curious, and take ownership of the outcome. You'll succeed by:

• Finding and resolving mechanical issues during EVT, DVT and PVT — not after ramp

• Releasing robust parts on time for key milestones, with minimal avoidable ECO rework

• Holding the balance between tolerances, materials, manufacturing constraints, performance and cost, and iterating fast when validation tells you something has to change

What you’ll bring

• 5+ years designing injection-moulded parts for high-volume consumer products, with at least one taken through mass production

• Strong fundamentals: tolerances and stack-ups, fastening, material selection, and structured root cause analysis of mechanical failures

• Hands‑on experience with injection moulding and the processes around small consumer hardware — overmoulding, LSR or silicone, TPE — and a real understanding of what mould flow and tooling constraints cost you when you design around them too late

• A feel for cosmetic surface finish and CMF, and for holding tight tolerances and visual quality at volume

• Experience working directly with CMs or ODMs through tooling, build, validation and ramp

• You interface confidently with cross‑functional partners and communicate clearly during design reviews. You ask for candid feedback and you give it — design reviews are where you want to be wrong early

• You work independently and know which calls are yours and which need Sourcing, EE or Quality in the room first

• Onshape or comparable parametric CAD, and experience in a PLM environment (we use Arena)

• You're comfortable with change and with requirements that keep evolving as prototypes, testing and manufacturing teach us more

• You know when work is ready to ship, and when it can evolve

• You use AI intentionally in your work, knowing where it can improve quality, output, experience or decisions and where it should not be used. You critically evaluate its outputs, catch issues before work ships, and stay accountable for the result

Loop isn’t for everyone. We might not be a match if you:

• Wait for direction instead of taking initiative

• Mistake activity for impact

• Feel uneasy when things are still taking shape

• Prefer alignment meetings over decisions

Still listening?

Why work at Loop

At Loop we cut through the noise, so the work that matters actually lands. We go all in on impact, connection, and growth. And you’ll feel that the moment you walk in. You’ll know people across teams fast, because candor is care, wins are celebrated loudly, and fun is taken seriously. And when you go all in at work, you also go all in on life. That’s why we give you 32 vacation days, enough time to recharge, travel, or dive headfirst into whatever makes you happiest.

Interview Process

• Application Window: now through 21 September (Applications only accepted in this window)

• Phone Screens (Recruiter and Hiring Manager): 9 September - 25 September

• Onsite Case Study and Stakeholder Interviews: 28 September - 2 October

• Target Start Date: 2 November

The fine print

• We know great engineers don't always tick every box. If this role excites you and you believe you can help shape Loop's future, we'd love to hear from you, even if your experience doesn't match every requirement.

• We will review all applications. There is no need to send an additional email.

• We are continually exploring the best ways to hire and build Loop. This includes the use of AI and assessments as part of our process. If you need any accommodation in this regard, please write to our recruitment team directly.