Embedded Systems Engineer — Early Career: Kernel & Hardware

Fractile; Greater London; Hybrid; GBP 50,000 - 70,000; Full time

Benefits offered by this job

Competitive salary

Equity and ownership

Private medical, dental and vision

25 days holiday plus bank holidays

Job summary

Fractile, a hardware‑software startup in London, is hiring an Embedded & Low‑Level Software Engineer at an early career level. You’ll work close to the metal on kernel drivers, ML inference kernels, firmware, and secure boot, with hybrid London or Bristol location.

We’re seeking those who prefer diagnosing at the hardware–software boundary, with fundamentals in Rust/C/C++, Linux/bare‑metal/RTOS, and architectural awareness; GPU/ML kernel experience is a plus, and eagerness to learn across

Qualifications

• Strong fundamentals in a systems language: Rust, C, or C++.
• Hands-on experience in Linux, bare-metal, or an RTOS.
• Knowledge of at least one architecture to reason about hardware.

Responsibilities

• Write and debug the Linux kernel driver (in Rust) for our PCIe-attached accelerator: PCIe, DMA, interrupts and memory.
• Write and optimise ML inference kernels in a high-level language and in assembly for RISC‑V and our custom ISA.
• Build the firmware that keeps our hardware running safely and reliably: bare‑metal and RTOS on board and device controllers (including the BMC), plus embedded Linux.
• Build device security in software: the root of trust, secure boot, device identity, and firmware updates that stay safe end to end.
• Build and extend our QEMU-based functional simulator, so software can be developed before the silicon arrives.
• Debug across the hardware and software boundary: kernel crashes, race conditions, memory errors, device bring‑up

Skills

Rust

C

C++

Linux

Bare-metal

RTOS

GPU kernels

Architecture knowledge

Education

Electronic Engineering / Computer Engineering / Computer Science degree

Tools

QEMU

Embedded Linux

PCIe driver experience

Job description

Fractile, a hardware‑software startup in London, is hiring an Embedded & Low‑Level Software Engineer at an early career level. You’ll work close to the metal on kernel drivers, ML inference kernels, firmware, and secure boot, with hybrid London or Bristol location.

We’re seeking those who prefer diagnosing at the hardware–software boundary, with fundamentals in Rust/C/C++, Linux/bare‑metal/RTOS, and architectural awareness; GPU/ML kernel experience is a plus, and eagerness to learn across