Semidynamics is a Barcelona-based semiconductor company, founded in 2016, that designs European processor technology built on the open RISC-V standard. We develop fully customisable 64-bit RISC-V processor IP, including out-of-order and in-order CPU cores and dedicated vector and tensor units, for demanding AI, machine learning and high-performance computing workloads.Our team combines deep architecture expertise with hands-on silicon experience, and we are growing to deliver complete, high-performance So C solutions to our customers.Role overviewWe are looking for an So C Top RTL Integration Engineer to integrate multiple subsystems into the top level of our high-performance So Cs. You will connect CPU clusters, IP blocks and peripherals through interconnects and No Cs, and make sure the integrated design is clean, constrained and ready for tape-out.This is a senior, hands-on role for an engineer who has already integrated large So Cs and taken them to silicon.Key responsibilities Integrate multiple subsystems (CPU clusters, memory, accelerators, peripherals and third-party IP) into the So C top-level RTL.Connect subsystems through interconnects and No Cs using protocols such as AXI, APB and CHI.Define and integrate the chip's IOs, including connections to pads.Write and maintain SDC timing constraints for the integrated design, working with physical design teams.Run, debug and close lint, CDC and RDC checks at So C top level.Integrate the top-level clock, reset and power infrastructure,



and contribute to UPF power intent.Develop Python and C scripts and tests to automate integration flows and support bring-up.Work closely with architecture, verification, DFT and physical design teams to drive the So C through to tape-out. Required qualifications Degree in Electrical Engineering, Electronic Engineering, Computer Engineering or a related field.8+ years of experience in digital/So C design.Strong hands-on RTL design experience (System Verilog/Verilog).Proven experience integrating multiple subsystems on large So Cs.Experience connecting subsystems through interconnects and/or No Cs, with solid knowledge of AXI and APB.Proven track record on one or more tape-outs.Hands-on experience with lint, CDC and RDC checks.Experience writing and managing SDC constraints and integrating chip IOs.Working knowledge of Python and C for scripting and automation (user level).Fluent English, written and spoken. Nice to have Knowledge of clock, reset and power architectures.Experience with the CHI coherent interconnect protocol.Experience with UPF-based low-power design flows and pad ring integration. Why Semidynamics Work at one of Europe's most promising deep-tech semiconductor scale-upsAccelerated development path, with room to grow into confidential computing, memory isolation and software security4 days per week in the Barcelona office (city center), 1 day working from home1 week of work from anywhere in the worldCompetitive packageA collaborative, technical, growth-oriented environment that values direct ownership and clear thinking #J-18808-Ljbffr

📌 Soc Top Rtl Integration Engineer (Barcelona)
🏢 Semidynamics
📍 Barcelona