{"id":44288,"url":"https://alion.io/job/alex-staff-agency-kernel-developer-kernelcare-els-team","title":"Kernel Developer - KernelCare ELS Team","company":{"id":6834,"name":"Alex Staff Agency","domain":"alexstaff.agency","url":"https://alion.io/company/alex-staff-agency","size_band":"51-200","is_staffing_agency":true,"employer_type":"agency","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"B","score":75,"open_postings":4,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":34,"computed_at":"2026-10-24T06:02:35Z"}},"role":"Hardware","role_family":"Hardware","seniority":null,"employment_type":"full_time","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":{"label":"LATAM time zones","utc_offset_min":-6,"utc_offset_max":-3},"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["US","AR","BR","CO","MX","CL","UY"],"hiring_countries_total":7,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Codeium","optional":false},{"name":"Copilot","optional":false},{"name":"CVE","optional":false},{"name":"Debian","optional":false},{"name":"Git","optional":false},{"name":"Go","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"Docker","optional":true},{"name":"Jenkins","optional":true},{"name":"QEMU","optional":true}],"status":"live","first_seen_at":"2026-08-06T00:00:00Z","employer_posted_date":"2026-08-06","last_verified_at":"2026-10-24T05:57:20Z","board_verified":true,"closed_at":null,"days_open":79,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":79},"description":"Location: Fully Remote (Worldwide) - Focus on LATAM time zones (Americas)\nEmployment Type: Full-time, B2B / Independent Contractor (or W2 for US-based candidates)\nAbout the Position & Company\nOur client is a global leader in Linux infrastructure and security solutions, known for pioneering automated live patching technologies that enable enterprises to apply critical kernel updates without reboots or downtime. They also provide extended support for end-of-life Linux distributions, helping organizations maintain compliance and enterprise-grade security.\nWith a fully remote team of 250+ professionals worldwide and a client base of over 4,500 enterprise customers-including major tech industry leaders-they deliver robust infrastructure solutions across the US, Europe, Latin America, and beyond.\nKey Responsibilities\n Research & Analysis: Investigate upstream security (CVE) and bug fixes; analyze patch dependencies and impact on legacy kernels.\nBackporting: Manually backport Linux kernel patches to older kernel versions used in RPM-based and Debian-based distributions.\nConflict Resolution: Resolve merge conflicts between upstream changes and target kernel codebases.\nKernel Packaging: Build and rebuild kernel source and binary packages using reproducible build environments for RPM and Debian ecosystems.\nValidation & Testing: Validate patched kernels through build tests, runtime tests, and regression analysis to ensure stability.\n Tooling & Automation: Enhance internal workflows (patch preparation, build automation, validation pipelines) using Python, Go, and Shell scripting.\nAI Integration: Leverage agentic/AI-assisted development tools to accelerate tasks, while rigorously verifying every generated output.\nDocumentation & Collaboration: Document technical decisions, participate in code reviews, and communicate clearly with team members across time zones.\nRequirements\nMust-Have\nStrong C proficiency and hands-on Linux debugging skills.\nProven commercial experience in Linux kernel development-specifically patching, backporting, or debugging.\nSolid experience with Git, GNU build tools (make, autotools), and standard Linux developer utilities.\nExperience building Linux kernels or distribution packages from source.\nScripting and automation skills: Python, Go, or Shell.\nPractical exposure to AI-assisted development tools (e.g., Copilot, Codeium, or similar), with a disciplined approach to code verification.\n English: Intermediate or higher (B1+), both written and spoken-you’ll be working in an international team and communicating in English daily.\nStrong ownership mindset, balanced technical judgment, and ability to articulate trade-offs.\nNice-to-Have\nExperience with RPM/SRPM or Debian kernel packaging.\nFamiliarity with security patching, CVE analysis, and extended lifecycle maintenance.\nWorking knowledge of Docker, QEMU, Jenkins, or other CI systems.\nExperience designing kernel validation tests, analyzing core dumps, and investigating regressions.\nCandidate Profile (Cultural Fit)\nHands-on practitioner: You love working directly with kernel code, not just theorizing.\nMethodical and detail-oriented: Kernel patching requires precision, reproducibility, and thorough validation.\nOwnership-driven: You take responsibility for outcomes, document your work, and proactively communicate risks.\nAI-curious but cautious: You embrace AI tools to accelerate development but never skip verification.\nRemote-first compatible: You thrive in async environments with minimal supervision and clear communication.\nBenefits\n 100% remote work with flexible hours - 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