{"id":1631011,"url":"https://alion.io/job/one-moment-please-senior-compiler-engineer","title":"Principal Software Engineer","company":{"id":2466738,"name":"One moment, please...","domain":"morpheus.com","url":"https://alion.io/company/morpheus-com","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"B","score":75,"open_postings":3,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-05T05:45:15Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Los Angeles, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":143000,"max_usd":288000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":861},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"LLVM","optional":false},{"name":"MLIR","optional":false},{"name":"Python","optional":false},{"name":"Verilog","optional":false},{"name":"VHDL","optional":false}],"status":"live","first_seen_at":"2025-10-09T00:39:54Z","employer_posted_date":"2025-10-09","last_verified_at":"2026-10-06T00:29:13Z","board_verified":true,"closed_at":null,"days_open":362,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":361},"description":"About the role\nAs a Senior Software Engineer on the Boulder Opal team, you will lead the design and evolution of the compiler that powers next-generation quantum computing systems. Working closely with researchers and quantum engineers, you will bridge the gap between quantum algorithms and physical hardware by building a high-performance compiler capable of translating pulse-level programs into controller instructions.\nThis is a hands-on senior engineering role for someone with deep compiler expertise who enjoys solving challenging systems problems and influencing technical direction.\nWhat you'll be doing:\nDesign, implement and optimise compiler infrastructure, intermediate representations, optimisation passes and code generation.\n\nMaintain and evolve our bespoke Python DSL used by researchers to construct pulse-level quantum programs.\n\nBuild high-performance software using Python and C++.\n\nWork closely with researchers to translate experimental algorithms into production-quality compiler capabilities.\n\nRun experiments on quantum hardware to validate compiler outputs end-to-end.\n\nInfluence technical direction, mentor other engineers and drive engineering best practices.\n\nOther duties within the Employee’s skills and experience, or with reasonable training.\nIdeally you'll have:\nStrong proficiency in Python and C++.\n\nExperience with LLVM, particularly MLIR.\n\nExperience implementing language tooling, parsers or DSLs.\n\nSignificant experience designing production compiler systems.\n\nExperience with compiler architectures, intermediate representations, optimisation passes and code generation.\n\nStrong understanding of systems programming and software architecture.\n\nIt would be fantastic (but not essential) if you bring:\nExperience with quantum control systems or pulse-level programming.\nExperience with experimental characterization of superconducting or semiconductor spin qubits.\nExperience with RF signal processing concepts such as IQ modulation.\nExperience using laboratory instrumentation (AWGs, digitisers, oscilloscopes, SCPI-controlled instruments).\nExperience with FPGA development (Verilog, VHDL or 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