SelectLevel ID: CSBE-1 Description Role Overview Semidynamics is seeking an experienced Senior SERDES/C2C First-Silicon Bring-Up Engineer to support the transition from verification collateral to a deterministic, executable and diagnosable physical SERDES/C2C bring-up flow. The engineer must be able to isolate failures across the physical PHY/modem, clocking and calibration layers and the digital C2C/controller layer. 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. Requirements Required experience * Demonstrable hands-on first-silicon SERDES or high-speed PHY bring-up experience. * Strong understanding of PLL, CDR, reference-clock selection, reset sequencing, calibration and lane readiness. * Experience with TX/RX configuration, termination, equalization,



polarity/lane configuration and link-training flows. * Ability to debug a link that does not reach its expected operational state using status registers, counters and physical measurements. * Low-level C/C++ firmware development, MMIO/register programming and bounded polling/error handling. * Ability to correlate RTL/UVM/cosimulation collateral with physical-silicon behaviour without blindly copying simulation assumptions. * Practical use of oscilloscopes and appropriate high-speed/debug laboratory equipment. * Experience working across hardware, firmware and verification teams during first-silicon debug. Strongly preferred * Chip-to-chip, chiplet, die-to-die or similar C2C interface experience. * Experience with Cadence SERDES/PHY IP or comparable commercial PHY IP. * Experience with PHY firmware, embedded PHY microcontrollers, calibration firmware or mailbox/control interfaces. * Experience

📌 Senior SERDES/C First-Silicon Bring-Up Engineer (Cataluña)
🏢 Semidynamics
📍 Cataluña