{"id":3245217,"url":"https://alion.io/job/parry-labs-principal-software-engineer-timing-and-synchronization","title":"Principal Software Engineer, Timing and Synchronization","company":{"id":4391457,"name":"Parry Labs","domain":"parrylabs.com","url":"https://alion.io/company/parrylabs","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"ADP","truth_index":null},"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":"structured","locations":["Huntsville, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":140000,"max_usd":279000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1231},"experience_years_min":9,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"SLI/SLO/SLA","optional":false},{"name":"Linux","optional":true},{"name":"MATLAB","optional":true},{"name":"Python","optional":true},{"name":"Rust","optional":true}],"status":"live","first_seen_at":"2026-09-24T19:23:00Z","employer_posted_date":"2026-09-24","last_verified_at":"2026-11-02T12:20:39Z","board_verified":true,"closed_at":null,"days_open":38,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":38},"description":"Who Are We?\nAt Parry Labs we believe the modern combat advantage relies on the speed and scale of open systems. We’re redefining the edge of the ever-changing and increasingly ever-changing battlespace by delivering game changing capabilities to our warfighters through digital engineering, software, and hardware solutions that are essential to our core of being a Digital Systems Integrator.\nBorn digital and agile, Parry Labs is building a winning team to be the premier provider for Next Generation Mission Systems Integration across air, land, sea, space and cyber.\nAre you ready to be an instrumental part of experts in the industry? Join us in the innovation of integration at Parry and apply to help develop the technologies of tomorrow while reaching new heights in your career today.\nAbout the Job\nAt Parry Labs, you will lead software development for resilient timing and synchronization. You will apply positioning, navigation and timing (PNT) expertise to keep distributed systems synchronized when reference signals or network connections degrade. You will report to a functional software engineering manager, with technical direction from the Chief Engineer.\nThe target start is February/March 2027.\nDuties & Responsibilities\nDefine timing software architecture, interfaces, error budgets and acceptance criteria with systems engineers.\nImplement and validate time-source fusion, clock discipline and holdover algorithms with the software team.\nDevelop synchronization services with defined behavior for clock drift, conflicting sources and reference loss.\nIntegrate GNSS receivers, oscillators and hardware timestamping through testable software interfaces.\nMeasure and improve PTP and NTP performance under latency, packet loss and asymmetric network delay.\nBuild automated tests for timing accuracy, uncertainty and recovery under degraded conditions.\nLead design and code reviews. Mentor engineers on timing algorithms, concurrency and numerical correctness.\nAnalyze timing measurements, resolve integration defects and document design decisions and verification results.\nRequired Qualifications\nBachelor's degree in computer science, computer engineering, electrical engineering, applied mathematics or a related field, or equivalent relevant experience.\n9+ years of software engineering experience, including technical leadership and delivery of timing or synchronization software.\nStrong PNT or assured PNT expertise, including clock stability, drift, uncertainty, clock discipline and holdover.\nProficiency in a systems programming language such as C or C++, with experience implementing and debugging timing software.\nExperience with estimation or filtering algorithms and PTP, NTP, GNSS timing or hardware timestamping.\nExperience defining software interfaces, reviewing code and validating performance through automated tests and measured data.\nU.S. citizenship and eligibility to obtain and maintain a U.S. government security clearance if required. An active clearance is not required at hire.\nPreferred Qualifications\nRust experience is strongly preferred. Candidates with strong PNT expertise qualify without prior Rust experience.\nExperience with embedded software, Linux or real-time operating systems.\nExperience characterizing oscillators or atomic clocks, including phase error, frequency error and Allan deviation.\nExperience with Python or MATLAB for timing analysis, authenticated time sources or fault-tolerant synchronization.\nWhy Join Parry Labs?\nAt Parry Labs, we foster a culture of curiosity and collaboration. Employees are given the autonomy to leverage their skills in creating state-of-the-art tech solutions that aid in the protection of the American Warfighter. We encourage new and bold ideas that push the status quo. It is this entrepreneurial spirit that drives us.\nParry Labs will support you with workplace flexibility, a commitment to the health and well-being of you and your family and provide opportunities to work with a purpose. We are committed to supporting your success in both your professional and personal lives with benefits such as education assistance and unlimited paid time off, just to name a few.\nNo One Has Time for Long Job Applications!\nWe completely understand, that is why we have made the application process easy. We promise. This will be simple.\nAccessibility/Accommodation:\nIf because of a medical condition or disability you need a reasonable accommodation for any part of the employment process, please send an e-mail to  or call (256) 682-7145 to let us know the nature of your request and contact information.","description_format":"text","description_chars":4613,"description_truncated":false,"requirements":{"experience_years_min":9,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":["Education assistance"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Military","Edge AI"],"lifecycle":[{"event":"open","at":"2026-10-25T19:01:41Z"},{"event":"close","at":"2026-10-27T21:18:45Z"},{"event":"reopen","at":"2026-10-28T07:45:35Z"}],"visa":[],"liveness":{"score":42,"band":"fade","label":"Fading","p_open":1,"p_active":0.758,"p_room":0.55,"age_days":38,"expected_fill_days":32,"reasons":["conf:2","urgency","win:tail"],"computed_at":"2026-11-02T06:13:15Z"},"pay":null,"html_url":"https://alion.io/job/parry-labs-principal-software-engineer-timing-and-synchronization","json_url":"https://alion.io/job/parry-labs-principal-software-engineer-timing-and-synchronization.json","meta":{"generated_at":"2026-11-02T14:54:38Z","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":20617,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-03T00:00:00Z"}},"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":4391457},"rest":"https://alion.io/mcp/rest/get_company?id=4391457"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fparry-labs-principal-software-engineer-timing-and-synchronization"},{"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%2Fparry-labs-principal-software-engineer-timing-and-synchronization"},{"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%2Fparry-labs-principal-software-engineer-timing-and-synchronization"},{"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/parry-labs-principal-software-engineer-timing-and-synchronization\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fparry-labs-principal-software-engineer-timing-and-synchronization"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3245217}},{"tool":"search_jobs","arguments":{"company":"parrylabs.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3245217},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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