Lead Software Engineer (Semiconductor Verification & Tooling)

Were Tropic Square a Prague-based company designing open-source secure-element chips.

Were looking for a Senior Software Engineer to join our hybrid team and help drive a long-term open-source project at the intersection of software and hardware in the semiconductor world. Youll own core infrastructure decisions shape architecture and grow into a technical leadership role.

If youre excited by deep technical problems with real-world impact this might be the role for you.

What Youll Work On

• Developing and expanding our automated flows and hardware modelling framework

• Building internal tooling and infrastructure that serves both the company and the wider open-source community

• Driving architectural decisions and the long-term technical direction of the codebase

• Exploring adjacent technical areas (verification cybersecurity EDA) as the work demands with room to go deep where youre curious

• Collaborating with internal teams and external contributors in a public technically demanding setting

Our Stack

• Mostly Python Bash C and whatever else the job calls for

• Check out our Github

Who You Are

• Senior software engineer with a track record of designing and maintaining complex systems

• Either youve led a small team and want to keep doing it or youre a senior IC with the instincts to mentor and steer without formal reports

• Background or genuine interest in hardware EDA or embedded development

• Experience or interest in security. We build in a domain where its not optional

• Comfortable thinking in terms of trade-offs and second-order effects not just shipping the next feature

• At home in a Unix/Linux environment and in open-source workflows (public reviews issue trackers async collaboration)

Why Join Us

• A rare role where software architecture and hardware reality meet

• Direct visible impact on an open-source project used in real semiconductor development

• Hybrid by default: work from the Prague office remotely or mix the two whichever fits your life. We optimize for autonomy and deep focus

• In-person team meetups in Prague are held a few times a year for planning and architecture work

Interested We want to hear from you! Just submit your CV a brief cover letter and links to your work. After the initial screening youll be directly in touch with your future team.

Required Experience:

IC