{"id":3970448,"url":"https://alion.io/job/a-listware-senior-windows-endpoint-systems-engineer-c-c","title":"Senior Windows Endpoint Systems Engineer (C# / C++)","company":{"id":4485862,"name":"A-Listware","domain":"a-listware.com","url":"https://alion.io/company/a-listware","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"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":["Ukraine"],"countries":["UA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"AI Agents","optional":false},{"name":"C#","optional":false},{"name":"C++","optional":false},{"name":"Windows","optional":false}],"status":"live","first_seen_at":"2026-11-09T15:42:15Z","employer_posted_date":null,"last_verified_at":"2026-11-09T15:42:15Z","board_verified":false,"closed_at":null,"days_open":0,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":0},"description":"Our Customer:\n\nOur customer is an international product company that builds enterprise software for monitoring and managing large fleets of corporate devices. Its products help IT teams keep workplace endpoints stable, secure and performing well at scale.\nYour Tasks:\n\nBuild the low-level layer that observes the operating system, in both managed and native code\n\nKeep the agent’s resource footprint minimal so that end users never notice it\n\nEnsure reliable and secure endpoint-to-cloud communication, including on unstable networks and during offline operation\n\nImplement endpoint actions that change device state safely, predictably and with a clear audit trail\n\nExtend on-device detection to automatically identify and investigate known issues\n\nBuild the on-device user experience presented by the agent\n\nOwn agent installation, upgrades and rollbacks across very large device fleets\n\nDiagnose field failures, including conflicts with endpoint security products\n\nTurn architectural direction into complete, production-quality implementations with minimal supervision\nRequired Experience and Skills:\n\n6+ years of experience building production software focused on Windows systems, endpoint agents or long-running unattended software\n\nDeep understanding of Windows internals, including processes, threads, memory, sessions, services, tokens, privileges and the Windows security model\n\nStrong command of C# and .NET\n\nSolid production experience with C++\n\nHands-on experience with managed-to-native interoperability\n\nHands-on experience with native Windows interfaces, including Win32, ETW, WMI and performance counters\n\nProven ability to profile and optimize CPU, memory and I/O usage for continuously running, low-footprint software\n\nHands-on experience with root-cause analysis using crash dumps and traces\n\nSolid understanding of concurrency in long-running software\n\nProven ability to build reliable, self-recovering software\n\nHands-on experience delivering, signing and upgrading software at fleet scale\n\nStrong security discipline when developing software that runs with elevated privileges\n\nHands-on production experience with AI-assisted and agentic coding tools\n\nProven ability to critically review AI-generated code\n\nEnglish – Advanced\nWould Be a Plus:\n\nProduction experience with Swift\n\nHands-on experience with macOS systems programming, including launchd daemons, XPC, system extensions, privacy controls and notarization","description_format":"text","description_chars":2435,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-11-09T15:42:15Z"}],"visa":[],"liveness":{"score":86,"band":"hot","label":"Hiring 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