Lead software engineer - compiler/llvm

Job Title: Lead Software Engineer – Compiler/LLVM
Location: Cork, Ireland or Belo Horizonte, Brazil
Reports to: Sr Software Architect
Job Overview
Tensilica, a Cadence company, delivers configurable processor IP and DSP solutions powering AI, vision, audio, and communications workloads. Its Xtensa architecture enables highly optimized, domain-specific designs with industry-leading performance and efficiency. The C Compiler team builds the toolchain that unlocks this performance. Working on LLVM‑based compilers for Xtensa processors, the team drives code generation, architecture‑aware optimizations, and real‑world workload performance. In close partnership with hardware teams, they enable new capabilities and deliver production‑grade tools used by leading semiconductor and systems companies.
Responsibilities

Design and implement compiler optimisations and features for Xtensa processors
Drive improvements in code generation, performance tuning, and architecture enablement across the toolchain
Partner closely with hardware and architecture teams on new ISA features and capabilities
Analyse and optimise real‑world workloads, including AI, DSP, and vision use cases
Provide technical mentorship to junior engineers and contribute to the team’s technical direction and best practices

Requirements

Bachelor’s or Master’s degree in Computer Science, Electrical Engineering, or a related field (or equivalent practical experience)
Typically 4+ years of experience in compiler development or low‑level systems software (academic or industry experience considered)
Strong C/C++ programming skills with solid debugging and problem‑solving expertise
Good understanding of compiler internals (LLVM, GCC, or similar frameworks)
Strong foundation in computer architecture and performance optimisation

Nice To Have

Experience with DSPs, AI/ML workloads, or embedded systems
Hands‑on experience with LLVM or GCC backends and optimisation passes
Experience working close to hardware teams or enabling new processor architectures

What We Can Offer You

Competitive salary
25 days holiday per year
Private Medical and Dental plans, Income Protection and Life Insurance
Group Personal Pension Plan
Cycle to work scheme and gym subsidy
5 days paid time to volunteer to give back to our communities
Employee Stock Purchase Plan
The opportunity to work for a Great Place to Work & Fortune 100 organization

Cadence is committed to equal employment opportunity and employment equity throughout all levels of the organization. We strive to attract a qualified and diverse candidate pool and encourage diversity and inclusion in the workplace.
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