{"id":1421324,"url":"https://alion.io/job/wavelynx-senior-firmware-engineer","title":"Senior Firmware Engineer","company":{"id":3829494,"name":"Wavelynx","domain":"wavelynx.com","url":"https://alion.io/company/wavelynx","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"BambooHR","truth_index":null},"role":"Hardware","role_family":"Hardware","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Broomfield, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":120000,"max":150000,"currency":"USD","period":"year","gross":null,"usd_annual":150000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"FreeRTOS","optional":false},{"name":"RTOS","optional":false},{"name":"TCP/IP","optional":false},{"name":"MQTT","optional":true},{"name":"PKI","optional":true}],"status":"live","first_seen_at":"2026-09-28T22:33:00Z","employer_posted_date":"2026-09-28","last_verified_at":"2026-10-01T07:02:06Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"At Wavelynx, we design and manufacture open-architecture physical access control hardware and software solutions. Our reader and controller technologies bridge the gap between traditional smart credentials, mobile credentials (Apple Wallet, Employee Badges), and secure cloud-managed networks. We empower physical security systems to be flexible, interoperable, and future-proof.\nPosition Overview\nWe are seeking a Senior Firmware Engineerto develop and optimize current embedded products along with our next-generation of access control products. In this role, you will work closely with hardware, software, and systems engineering teams to design resilient firmware handling NFC/RFID communications, secure element integrations, cryptographic protocols, and network communications (OSDP, Ethernet, IP-based access control).\nSupervisory Responsibilities\nNone\nDuties/Responsibilities\nArchitect, implement, and maintain bare-metal and RTOS-based firmware for smart card readers and controllers.\nOptimize high-frequency (13.56 MHz) RFID/NFC field processing, ISO/IEC 14443, ISO/IEC 18092, and MIFARE/DESFire protocols.\nIntegrate and secure mobile credentials, including Apple Wallet and Google Wallet credentials, using Secure Elements (SE) and Secure Application Modules (SAM).\nImplement secure physical and logical communication protocols between readers, controllers, and cloud environments (e.g., OSDP, TLS/TCP/IP, RS-485, BLE, Ethernet).\nDevelop robust firmware update mechanisms (OTA / FOTA) over network protocols while ensuring tamper resistance and zero downtime.\nTroubleshoot complex networking issues across local serial buses, IP networks, and RF interfaces.\nCollaborate with hardware engineers during schematic review, board bring-up, signal integrity testing, and power management optimization.\nDrive automated firmware testing, unit testing, and CI/CD pipelines for hardware-in-the-loop (HIL) environments.\nLead root-cause analysis for field escalation issues related to RF performance, timing dependencies, or protocol compliance.\nRequired Skills/Abilities\n5+ years of professional embedded software development experience using C and C++.\nStrong background with real-time operating systems (FreeRTOS, Zephyr, or similar) and ARM Cortex-M microcontrollers.\nExperience with logic analyzers and oscilloscopes.\nBe willing to travel domestically and internationally ranging from 0 to 10 days per year.\nNice to Haves\nDirect background in the Physical Access Control System (PACS)industry.\nHands-on experience with NFC chipsets (e.g., ST25R-series similar), ISO 14443 Type A/B, Felica, or ISO 15693 standards.\nProven expertise with industrial or secure communication protocols (OSDP, RS-485, TCP/IP, UDP, TLS/DTLS, MQTT, or BLE stack development).\nDeep knowledge of symmetric/asymmetric encryption (AES, ECC, RSA), PKI, secure boot, and hardware root-of-trust implementations.\nExperience with static code analysis and RF test equipment (e.g., Proxmark, network analyzers).\nExposure to compliance and certification standards (UL 294, FCC, CE, ISO/IEC standards).\nSalary Benefits\nSalary: $120-150k\nBenefits include great rates on company-sponsored medical, dental, and vision with HSA-eligible plans available, generous retirement with up to 6% 401k match, and holidays, vacation, and sick leave.","description_format":"text","description_chars":3302,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":["401k plan"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Cybersecurity","Real Estate","Access Control & Alarm Systems"],"lifecycle":[{"event":"open","at":"2026-09-28T22:33:00Z"}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":2,"expected_fill_days":42,"reasons":["conf:11","win:early"],"computed_at":"2026-10-01T05:45:00Z"},"pay":{"stated_usd_annual":150000,"is_top_pay":false},"html_url":"https://alion.io/job/wavelynx-senior-firmware-engineer","json_url":"https://alion.io/job/wavelynx-senior-firmware-engineer.json","meta":{"generated_at":"2026-10-01T10:09:47Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":1232,"day_limit":5000,"remaining_today":3768,"minute_limit":60,"resets_at":"2026-10-02T00:00:00Z"}}}