Senior Software Engineer (Processor Software Stack)

Ubitium GmbH; Karlsruhe; Hybrid; EUR 90.000 - 130.000; Vollzeit

Benefits dieser Stelle

Stock options

30+ days vacation

Relocation support

German social security

Modern office

Free snacks

Talented colleagues

Collaborative culture

Career growth

AI & signal processing hands-on

Zusammenfassung

Ubitium GmbH is seeking a Senior Software Engineer who can span the software stack from compiler and tooling to bare-metal and OS-level code for a RISC-V SoC. You will develop the software stack, bring up on pre-silicon platforms, and work closely with hardware designers to optimise signal-processing and ML inference under real-time constraints.

The role requires deep low-level expertise, experience near hardware, and a track record in compiler or embedded domains.

Qualifikationen

• Strong C, modern C++ (C++17/20, STL, Boost) and Python.
• Solid algorithms and hardware/software system-architecture.
• Experience near hardware: SoC design, processor and microarchitecture.
• Experience with agentic programming.
• Deep expertise in at least one area: compiler dev, tooling, OS, or ML.
• Master's degree (or equivalent) and 10+ years experience.
• Relocation required; 4 days on-site, 1 day remote.

Aufgaben

• Develop software stack including compiler, mapping tools, low-level tooling, simulation and debugging infrastructure.
• Write bare-metal, firmware and OS-level software for our RISC-V SoC.
• Implement and optimise signal-processing and inference kernels under real-time constraints.
• Bring up, test and port software on pre-silicon platforms and silicon, incl. low-level hardware tests.
• Work in a close feedback loop with hardware designers.

Kenntnisse

C

C++17/20

Python

Algorithms

System architecture

Ausbildung

Master's degree

Tools

Boost

STL

QEMU

GDB

Verilator

OpenSBI

Jobbeschreibung

At Ubitium, we believe the best engineering happens when people with different perspectives tackle hard problems together. We welcome applicants from all backgrounds and experiences. What matters most is curiosity, skill, and the drive to build technology that improves the world. If that resonates with you, we’d love to hear from you. Our team members come from some of the best universities in the world and left some of the largest tech companies to build something truly remarkable.

Tasks

We are looking for a Senior Software Engineer who is at home across our processor software from ported libraries and the compiler down to bare-metal and operating systems. Your team will: develop our software stack, including compiler, mapping tools, low-level tooling, simulation and debug infrastructure; write bare-metal, firmware and OS-level software for our RISC-V SoC; implement and optimise signal-processing and inference kernels under real-time constraints; bring up, test and port software on pre-silicon platforms and on silicon, including low-level hardware tests; and work in a close feedback loop with our hardware designers.

Requirements

• Strong C, modern C++ (C++17/20, STL, Boost) and Python.
• A solid foundation in algorithms and in hardware/software system architecture.
• Experience working close to the hardware, with a good understanding of system-on-a-chip design, processor architecture and microarchitecture, and some familiarity with RTL and hardware design.
• Experience with agentic programming.
• You know your way around all of these fields, and go deep in at least one: i ) compiler development and code generation; ii) low-level tooling, simulation and performance analysis; iii) low-level embedded or systems software, operating systems and real-time; iv) signal processing, numerical computation and ML inference
• Master's degree (or equivalent experience) and 10+ years of relevant experience.
• Relocation required. Currently 4 days on-site, 1 day remote. Policy may change.

Nice to have

• Parallel and data-flow execution models: SIMT, predicated execution, branch divergence.
• Mapping and optimisation algorithms: graph algorithms, place-and-route / EDA, CGRA or FPGA mapping, ILP solvers.
• Kernel-level optimisation: vectorisation, data layout, memory hierarchy, fixed-point and quantised arithmetic.
• Post-silicon validation and hardware bring-up, including directed and random test generation.
• Porting code to new platforms.
• Exposure to: RISC-V, LLVM, CUDA, OpenCL, Verilog, Verilator, QEMU, GDB, JTAG and on-chip debug, OpenSBI, bootloaders, HAL, Linux kernel and device drivers, device tree, Zephyr, Yocto/OpenEmbedded, BLAS/LAPACK/OpenBLAS.

Benefits

• Competitive salary plus stock options
• 30+ days of paid vacation
• Relocation support
• Full German social security and universal healthcare
• A modern office
• Free snacks, coffee, and drinks
• Work with people who actually know their stuff – computer architects, hardware nerds, and engineers who love tough problems.
• A culture where new ideas matter, but so does respect and collaboration.
• Space to grow: pick up new skills, dig into areas that interest you, and shape your own path.
• Get hands-on with real implementations of AI and signal processing – not just slides or buzzwords.
• An inclusive team where different perspectives are valued and everyone contributes.

We are constantly looking for talent. We recruit through multiple channels – friends & colleagues, universities and professors we know, recruiters, conventions, e-mails and LinkedIn. Join us today.