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89,000+ live jobsSenior SW Engineer - AI Frameworks
Hybrid in Barcelona·Added 1 month ago (last checked 3 Nov)
35 open roles
Our summary
- Work mode
- Hybrid, Barcelona
- English
- Required
- Experience
- Senior level



Visa options
The ad doesn’t mention sponsorship
Not a refusal, but not a yes. Worth asking in your first message.
Skills
Nice to have
Requirements
What we're looking for
What You'll Bring
Required:
Strong experience with modern C++
C programming experience
Working knowledge of Python
Experience with Linux environments
Multithreading experience
Software profiling and debugging (gdb)
Strong problem-solving skills and attention to detail
English proficiency at C1 level
Nice to have
PyTorch dispatcher/ATen internals
vLLM
SGLang
CMake
LLVM/GCC
Hardware/software interfacing experience
Multi-GPU deployment
C/C++ and Python interoperability (pybind11)
ONNX Runtime execution provider (EP) registration
Open source contributions
CUDA/ROCm
AI kernel development
Bare-metal programming
AI application development
Workload analysis
Pay & benefits
What you'll get
Join one of Europe's most promising deep-tech semiconductor scale-ups
Accelerated career development path
Competitive compensation package
The role
Semidynamics' software team is extending support for our hardware into the tools and frameworks that enable clients to deploy AI applications. We're looking for software developers with strong C++ experience in complex, multi-layered projects, ideally with exposure to the interface between hardware and software.
If you're passionate about performance, code quality, and solving complex technical challenges, you'll find real opportunities to grow here. You'll work side by side with our hardware and AI teams, with the chance to influence not just our software stack, but the direction of the hardware itself.
What You'll Do
What you'll do
Design and build software components that integrate deeply with Semidynamics hardware
Work across multiple layers of complex systems, from low-level interfaces to higher-level frameworks
Collaborate closely with hardware and AI teams to shape both software architecture and hardware capabilities
Profile, debug, and optimize code for performance and reliability
How you'll work
Hybrid model: 4 days/week at our Barcelona city-center office, 1 day WFH
1 week per year of "work from anywhere in the world"
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