{"id":108731,"url":"https://alion.io/job/cadence-lead-software-engineer-compilerllvm","title":"Lead Software Engineer - Compiler/LLVM","company":{"id":4351,"name":"Cadence Design Systems","domain":"cadence.com","url":"https://alion.io/company/cadence","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"B","score":82,"open_postings":115,"ghost_share":0,"stale_share":0.73,"repost_share":0,"time_to_fill_p50_days":57,"computed_at":"2026-10-26T05:57:25Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"explicit","locations":["Cork, Ireland"],"countries":["IE"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":104000,"max_usd":221000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":10},"experience_years_min":4,"visa_sponsorship":false,"relocation_package":false,"has_equity":true,"technologies":[{"name":"C","optional":false},{"name":"C++","optional":false},{"name":"GCC","optional":false},{"name":"LLVM","optional":false}],"status":"live","first_seen_at":"2026-05-28T00:00:00Z","employer_posted_date":"2026-05-28","last_verified_at":"2026-10-25T13:14:13Z","board_verified":true,"closed_at":null,"days_open":151,"trust":{"level":"ok","repost_count":0,"flags":[],"days_open":151},"description":"At Cadence, we hire and develop leaders and innovators who want to make an impact on the world of technology.\nCadence is a pivotal leader in electronic design, building upon more than 30 years of computational software expertise. The company applies its underlying Intelligent System Design strategy to deliver software, hardware and IP that turn design concepts into reality.\nCadence customers are the world’s most innovative companies, delivering extraordinary electronic products from chips to boards to systems for the most dynamic market applications including consumer, hyperscale computing, 5G communications, automotive, aerospace industrial and health.\nAt Cadence, we hire and develop leaders and innovators who want to make an impact on the world of technology.\nJob Title: LeadSoftware Engineer - Compiler/LLVM\nLocation: Cork, Ireland or Belo Horizonte, Brazil\nReports to: Sr Software Architect\nJob Overview:\nTensilica, 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.\nThe 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.\nIn close partnership with hardware teams, they enable new capabilities and deliver production-grade tools used by leading semiconductor and systems companies.\nResponsibilities:\nDesign and implement compiler optimisations and features for Xtensa processors \nDrive improvements in code generation, performance tuning, and architecture enablement across the toolchain \nPartner closely with hardware and architecture teams on new ISA features and capabilities \nAnalyse and optimise real-world workloads, including AI, DSP, and vision use cases \nProvide technical mentorship to junior engineers and contribute to the team’s technical direction and best practices\nRequirements:\nBachelor’s or Master’s degree in Computer Science, Electrical Engineering, or a related field (or equivalent practical experience) \nTypically 4+ years of experience in compiler development or low-level systems software (academic or industry experience considered) \nStrong C/C++ programming skills with solid debugging and problem-solving expertise \nGood understanding of compiler internals (LLVM, GCC, or similar frameworks) \nStrong foundation in computer architecture and performance optimisation\nNice to Have:\nExperience with DSPs, AI/ML workloads, or embedded systems \nHands-on experience with LLVM or GCC backends and optimisation passes \nExperience working close to hardware teams or enabling new processor architectures\nCheck what we can offer you:\nCompetitive salary\n25 days holiday per year\nPrivate Medical and Dental plans, Income Protection and Life Insurance\nGroup Personal Pension Plan\nCycle to work scheme and gym subsidy\n5 days paid time to volunteer to give back to our communities\nEmployee Stock Purchase Plan\nThe opportunity to work for a Great Place to Work© & Fortune 100 organization\nCadence 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.\n We’re doing work that matters. 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