{"id":2376170,"url":"https://alion.io/job/quest-defense-senior-embedded-software-engineer-rfio-rf-systems-integration","title":"Senior Embedded Software Engineer – RFIO / RF Systems Integration","company":{"id":618,"name":"Quest Defense","domain":"quest-defense.com","url":"https://alion.io/company/quest-defense","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":75,"open_postings":13,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-14T06:34:16Z"}},"role":"Hardware","role_family":"Hardware","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Phoenix, United States","Scottsdale, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":127000,"max":167000,"currency":"USD","period":"year","gross":null,"usd_annual":167000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-10-01T22:03:24Z","employer_posted_date":"2026-10-01","last_verified_at":"2026-10-14T08:45:27Z","board_verified":true,"closed_at":null,"days_open":12,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":12},"description":"We’re looking for humble geniuses who believe engineering can turn the impossible into reality-and who are driven to design, build, and test solutions that matter for some of the world’s most trusted companies. If you want to do meaningful work with a diverse team that believes in shared wins, continuous learning, and engineering a brighter future, this is the place for you. \nWe are seeking an experienced Embedded Software Engineer to develop and integrate software that controls, calibrates, and interfaces with RF transmit/receive systems. This hands-on role combines C/C++, Python, RF hardware, FPGA/firmware, and laboratory testing to characterize system performance, develop calibration and compensation techniques, and troubleshoot complex hardware/software issues.\nLocation: Phoenix, Arizona. On-site preferred, 3+ days/week\nCitizenship: U.S. Person \nKey Responsibilities\nDevelop and maintain RFIO software interfacing embedded software/FPGA with RF subsystem hardware.\nDevelop C/C++ software to configure, control, monitor, and characterize RF and mixed-signal devices.\nImplement multi-channel transmitter control, including phase alignment, beamforming, power/gain leveling, and programmable RF components.\nDevelop receiver calibration and compensation techniques for gain, phase, sensitivity, temperature, and other RF variations.\nIntegrate RF hardware with FPGA/firmware, embedded software, and system-level components.\nInterpret device datasheets and develop low-level register/configuration interfaces.\nDevelop Python test and automation for laboratory equipment, RF testing, data collection, and analysis.\nPerform hands-on laboratory integration, characterization, measurement, troubleshooting, and debugging.\nDiagnose cross-domain issues involving software, FPGA/firmware, RF, and hardware.\nWork across RF, FPGA, hardware, systems, and software teams to resolve technical issues.\nFollow disciplined software processes for requirements, traceability, verification, validation, configuration management, and documentation.\nRequired Qualifications\n5-15 years of relevant engineering experience in embedded software and hardware/software integration.\nStrong C and C++ development skills.\nExperience developing embedded or FPGA-facing software interfacing directly with RF or mixed-signal hardware.\nPractical understanding of RF transmit/receive signal chains, including phase, gain, synchronization, power leveling, sensitivity, calibration, and temperature compensation.\nExperience configuring hardware through low-level interfaces and device registers and interpreting component datasheets.\nStrong Python skills for test automation, instrumentation, data collection, and engineering analysis.\nExperience debugging issues across software, FPGA/firmware, and hardware.\nHands-on experience with oscilloscopes, spectrum analyzers, network analyzers, and RF/electronic test equipment.\nStrong mathematical and analytical skills related to calibration, signal behavior, and system characterization.\nAbility to independently troubleshoot and drive root-cause resolution in a laboratory environment.\nExperience with requirements, traceability, verification, and validation processes.\nExperience with multi-channel RF systems, phased arrays, beamforming, radar, communications, electronic warfare, or similar RF-intensive systems.\nFamiliarity with DO-178B/C or comparable requirements-based software development and verification.\nMust meet U.S. Person requirements.\nPreferred Qualifications\nExperience developing multi-channel RF calibration algorithms.\nExperience characterizing RF performance across temperature or other environmental conditions.\nExperience automating RF laboratory equipment using Python.\nExperience with SPI, I²C, UART, GPIO, or similar device-control interfaces.\nFamiliarity with FPGA-based architectures and software-to-FPGA interfaces.\nAerospace, defense, or other high-reliability embedded product experience.\nExperience supporting formal integration, verification, qualification, or certification activities.\nThe QDSS Advantage \nAt QDSS, our advantage is purpose-driven work, collaborative teams, and complex challenges that push boundaries and build lasting impact. You’ll grow your career while contributing to mission-critical programs that demand excellence and shape the future. \nWhat You’ll Find Here \nWork That Matters - Next-generation, safety- and mission-critical projects where your contributions have real-world impact. \nGrowth That’s Supported - Competitive compensation, employer-matched 401(k), certification assistance, and clear opportunities for advancement. \nA Culture That Works - A flexible, collaborative, and people-first environment where teamwork, innovation, and balance are valued. \nBenefits Include \nCompetitive pay, comprehensive medical/dental/life and disability coverage, 401(k) with employer match, professional development support, and a flexible, friendly workplace.\nFull compensation package is based on candidate experience and certifications\nPay Ranges\n$127,000—$167,000 USD\nAt Quest Defense Systems and Solutions, we don’t just build technology - we engineer the future. From next-generation aerospace solutions to cutting-edge defense systems, we tackle the toughest, mission-critical challenges that keep people safe and push the boundaries of innovation. This is where problem-solvers, innovators, and visionary thinkers come together to shape the future. With over 25 years of aerospace and defense engineering expertise, our commitment to delivering high-quality, transformative solutions sets us apart - not just as an industry leader, but as a driving force for impactful change. Together, we’re not just leading the industry - we’re revolutionizing it.\nQuest Defense provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.\nThis policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.","description_format":"text","description_chars":6604,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"phd","optional":false},"security_clearance":false,"languages":[]},"benefits":["Continuous learning","Professional development"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Engineering Services"],"lifecycle":[{"event":"open","at":"2026-10-12T18:36:54Z"}],"visa":[],"liveness":{"score":52,"band":"ok","label":"Likely open","p_open":1,"p_active":0.555,"p_room":0.945,"age_days":12,"expected_fill_days":23,"reasons":["conf:3","stale_co","win:mid"],"computed_at":"2026-10-14T06:34:16Z"},"pay":{"stated_usd_annual":167000,"is_top_pay":false},"html_url":"https://alion.io/job/quest-defense-senior-embedded-software-engineer-rfio-rf-systems-integration","json_url":"https://alion.io/job/quest-defense-senior-embedded-software-engineer-rfio-rf-systems-integration.json","meta":{"generated_at":"2026-10-14T10:14:31Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":11823,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-15T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":618},"rest":"https://alion.io/mcp/rest/get_company?id=618"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fquest-defense-senior-embedded-software-engineer-rfio-rf-systems-integration"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fquest-defense-senior-embedded-software-engineer-rfio-rf-systems-integration"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fquest-defense-senior-embedded-software-engineer-rfio-rf-systems-integration"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/quest-defense-senior-embedded-software-engineer-rfio-rf-systems-integration\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fquest-defense-senior-embedded-software-engineer-rfio-rf-systems-integration"}]}