The Opportunity
Lumai's accelerator depends on custom analog and mixed-signal silicon - data converters, bias and reference circuits, clocking - designed and laid out in house. That effort is scaling up in Spain, and layout is where a good circuit either survives silicon or quietly stops working. This hire owns it.
The Role
You will own the physical implementation of Lumai's custom analog and mixed-signal blocks, from data converters to bias and clocking circuits, on advanced CMOS process nodes. You will translate schematic intent into silicon-accurate layout in tight feedback loops with circuit designers, and you will be the team's authority on matching techniques, parasitic-sensitive floorplanning and the physical verification flows that get a design tapeout-ready. You will report to the Senior Analog/Mixed-Signal Design Lead.
What is genuinely hard about this is that layout is where matching, parasitics and noise coupling decide whether the circuit that was designed is the circuit that comes back. The work is iterative and evidence-driven:



extraction and back-annotated simulation cycles to close margins, and DRC, LVS and ESD sign-off where a violation found late is expensive.
By month six, you will have taken blocks through the full sign-off flow to tapeout-ready, documented the matching standards and layout review practice you want the team to hold, and started mentoring junior layout engineers as the team grows.
What You'll Do
- Own full-custom layout of analog and mixed-signal blocks: data converters, bias and reference circuits, PLLs and analog front-end IP.
- Apply the matching technique each block needs - common-centroid placement, dummy structures, guard rings and symmetric routing - to preserve circuit performance in silicon.
- Identify and mitigate parasitic-sensitive risks including coupling, IR drop and substrate noise, working with circuit designers on back-annotated simulation.
- Drive parasitic extraction and back-annotated simulation cycles to clos

📌 Senior Analog Layout Engineer (España)
🏢 Lumai
📍 España