Hardware Design Engineer

You will own board designs end to end — architecture, schematic capture, component selection, layout direction and the design reviews that get them built. This is a hands-on ownership role: the boards you design are the ones the team brings up, debugs and ships.

What you will work on:

• Schematic design and ownership of boards for an AI accelerator platform
• Component selection and sourcing trade-offs, from silicon to passives
• Layout direction and constraint definition, working alongside PCB designers
• Design reviews, DFx and the path from prototype through to production
• Respins and ECOs driven by test, bring-up and field feedback

Responsibilities:

• Schematic capture & ownership: Own the full schematic for assigned boards — architecture, block partitioning, interface definition, power tree and sequencing. Maintain the design through revisions, ECOs and respins.
• Component selection: Select and specify components against electrical, thermal, cost, lifecycle and supply constraints. Own the BOM, including second sourcing and obsolescence risk.
• Layout direction: Define stackup, placement intent, routing constraints and keep-outs. Review layout against SI, PI, power and thermal requirements, and drive the iterations to closure.
• Design verification: Run circuit-level simulation where it matters, build and check timing and interface budgets, and perform worst-case analysis on critical nets and rails.
• Cross-functional & lifecycle: Work with SI/PI, power, thermal, mechanical and firmware teams to fold their requirements into the design. Drive formal design reviews, hand the board off cleanly to the bring-up team with the documentation they need, and take it through NPI with manufacturing partners.

Requirements:

• 5+ years designing complex digital boards — server, datacentre, networking, or comparable high-speed systems
• Proven ownership of schematic capture on multi-layer boards carrying high-speed interfaces, from concept to production
• Strong grasp of digital and mixed-signal design: power trees, sequencing, clocking, reset, level shifting, interface standards
• Comfortable with an EDA suite — Cadence Allegro/OrCAD, Altium, Mentor Xpedition or equivalent
• Able to define layout constraints and review layout critically, not just hand it off
• Experience carrying a design through multiple revisions and ECOs on the back of test and field feedback

Nice to Have:

• Boards carrying PCIe Gen5/Gen6, DDR5/LPDDR, or high-speed SerDes interfaces
• High-current power delivery design and PDN-aware layout work
• NPI experience with CM or ODM partners, including DFM, DFT and yield feedback
• Familiarity with OCP rack-scale platforms and their board form factors
• Python scripting for BOM handling, netlist checks and design automation

Why Semidynamics?

• Work for one of Europe’s most promising deep-tech semiconductor scale-ups.
• Accelerated development path.
• 4 days per week in the Barcelona office (city center), 1 day WFH.
• 1 week of work from everywhere in the world.
• Competitive package.
• A collaborative, technical, and growth-oriented environment that values direct ownership and clear thinking.