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ROLE: Senior Software Engineer – AI & Hardware Optimisation LOCATION: Barcelona, Spain SALARY: Negotiable DURATION: Permanent An exciting opportunity for an experienced Senior Software Engineer to develop and optimise the software stack supporting advanced AI hardware platforms. You will work across low-level kernel optimisation, parallel processing, workload analysis, profiling, and framework support, collaborating closely with hardware and AI engineering teams. Responsibilities: Develop and optimise software for highly parallel AI and compute workloads. Work on low-level kernel optimisation, inter-device coordination, and data processing. Profile and analyse software performance to identify optimisation opportunities. Contribute to software frameworks, emulation, distribution, and packaging. Develop software optimisations based on underlying hardware architecture. Collaborate closely with hardware and AI teams to influence both software and hardware development. Support the development of efficient and scalable AI software solutions. Requirements: 8+ years of experience in software development, optimisation, or a related field. Strong C/C++ and Python programming skills. Solid Linux experience. Experience with software profiling, workload analysis, and parallel programming. Strong understanding of performance optimisation and problem-solving. Bachelor’s, Master’s, or PhD in Computer Science, Engineering, or a related discipline. C1-level English. Desirable Experience: C/C++ and Python interoperability. RISC-V / RISC-V Vector assembly. Architecture-based optimisation. CUDA/ROCm. Bare-metal programming. LLVM/GCC. AI application development. ONNX Runtime. Experience working with hardware/software co-design environments.
Here's how to pick the right one and stand out in your application.
144.883Jobs
31.687IN
81%EN
That number is real. WorkMundi's database shows 144,883 open engineer roles across the world. India has the most with 31,687 jobs, followed by the United States with 30,084. If you just finished reading one job ad and felt paralyzed by choice, you're not alone—but this scale is actually an advantage. It means you can afford to be selective.
Start by geography and language. The majority of engineer ads—117,837 of them—have the job posting text written in English. Use that as one filter, but remember: the ad text language tells you nothing about whether the role actually requires you to speak English day-to-day. Read the job description carefully. Then check which countries have the volume you're targeting. Singapore, Poland, and Australia round out the top five after India and the US.
Next, learn who's hiring. Accenture has posted 2,801 engineer roles. andurilindustries, speechify, and jobgether are also actively recruiting. If you're applying to one of these names, research their hiring patterns and interview style before you apply. That homework pays off.
When you interview, expect the question every engineer hears: 'Tell me about a time you had to debug a problem that wasn't in your job description.' Have a specific story ready—not a general one. Name the tools, the deadline pressure, and what you learned. Hiring managers listen for whether you see problem-solving as part of the role itself, not a favour.