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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer - Computation Kernels - **Company:** Arago - **Location:** Courbevoie, France - **Contract:** Permanent contract - **Skills:** Abstraction Layers, Artificial Intelligence, ARM Architecture, C++ (Programming Language), Computer Engineering, Software Debugging, Emulators, Firmware, Field-Programmable Gate Array (FPGA), GNU Linker, Joint Test Action (IEEE Standards), Reduced Instruction Set Computing, System Programming, Systems Integration, Diagnostic Tools, Caching, Low Latency, Bare Metal, Hardware Debugging - **Published:** September 5, 2026 - **Apply:** https://startup.jobs/software-engineer-computation-kernels-and-performance-arago-9628527 ## About the Role * Bachelor's, Master's, or PhD in Computer Science, Computer Engineering, or a related field. * Strong experience in low-level systems programming using C/C++ and assembly, with excellent understanding of how compiled software maps to machine instructions and hardware behavior. * Deep familiarity with bare-metal development, including startup code, linker scripts, memory layout, MMIO, interrupts/exceptions, timers, synchronization, and direct peripheral access. * Strong understanding of computer architecture, including pipelines, caches, memory hierarchies, virtual/physical addressing, atomics, DMA, and performance implications of different access patterns. * Hands-on experience with RISC-V and/or ARM architectures, instruction sets, calling conventions, ABI concepts, and architecture-specific intrinsics. * Experience debugging hardware/software interactions using tools such as GDB, JTAG, trace/debug interfaces, simulators, emulators, or FPGA platforms. * Ability to read hardware specifications, register descriptions, and RTL-level documentation and translate them into robust software implementations. * Strong performance-analysis and optimization skills, including profiling, disassembly inspection, compiler optimization behavior, and hand-tuned assembly where appropriate. * Language: English at a proficient level. French is a plus. ## Description As a Performance Software Engineer, you will be instrumental in building the core computation software that runs on Arago's custom AI accelerators. Your work will bridge the gap between host systems and proprietary hardware, encompassing everything from a custom on-board kernels to the sophisticated tooling required for real-time debugging. You will be a key player in chip bring-up and the long-term development of high-performance computation primitives and kernels, ensuring our architecture operates with maximum efficiency and deterministic performance., * Develop and optimize low-level software primitives in C/C++, assembly, and architecture-specific intrinsics, primarily for RISC-V and ARM platforms. * Implement performance-critical kernels, runtime components, hardware abstraction layers, drivers, and firmware operating in bare-metal or highly constrained environments. * Work closely with hardware architects and RTL/design teams to define and validate hardware-software interfaces, memory maps, register interfaces, interrupts, synchronization mechanisms, and boot flows. * Analyze and optimize software for latency, throughput, memory footprint, instruction count, and efficient use of processor and accelerator features. * Bring up and debug software on simulation, emulation, FPGA, and silicon platforms, including low-level hardware/software integration issues. * Develop validation tests, benchmarks, and diagnostic tools for new processor, DSP, accelerator, and SoC functionality. * Contribute to architecture decisions around ISA extensions, compiler intrinsics, memory hierarchy, DMA, cache/coherency behavior, and software-visible hardware features., * Technical meeting : Deep dive into your past projects and technical achievements. * CEO Interview : Assess the fit with the team's culture and long-term vision. * Reference Calls: Mandatory calls with your former managers to validate strengths, weaknesses, and work style. * Technical Assessment: Take-home technical assignment crafted to the role you're applying for. * Final Interview : Discuss your technical assignment and address any remaining questions with team members. ## Related Videos - [HTTP headers that make your website go faster](https://www.wearedevelopers.com/videos/1676-http-headers-that-make-your-website-go-faster) - [Playing Pong on a shoulder press machine](https://www.wearedevelopers.com/videos/100140-playing-pong-on-a-shoulder-press-machine) - [Thinking Differently - How to Make Money from Cyber Attacks & Cheats](https://www.wearedevelopers.com/videos/745-thinking-differently-how-to-make-money-from-cyber-attacks-cheats) - [Unleashing the Full Potential of the Arm Architecture – Write Once, Deploy Anywhere](https://www.wearedevelopers.com/videos/940-unleashing-the-full-potential-of-the-arm-architecture-write-once-deploy-anywhere) - [Event based cache invalidation in GraphQL](https://www.wearedevelopers.com/videos/433-event-based-cache-invalidation-in-graphql) - [Passive ARM Assembly Skills for Debugging, Optimization (and Hacking)](https://www.wearedevelopers.com/videos/1083-passive-arm-assembly-skills-for-debugging-optimization-and-hacking) ## Related Articles - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [10 Highest Paying Programming Languages 2025](https://www.wearedevelopers.com/magazine/150-10-highest-paying-programming-languages-2025) - [Is Software Engineering Hard?](https://www.wearedevelopers.com/magazine/448-is-software-engineering-hard) - [How Much FAANG Companies Actually Pay Software Engineers in 2025](https://www.wearedevelopers.com/magazine/230-how-much-faang-companies-actually-pay-software-engineers-in-2025) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)