Alex Staff Agency

Kernel Developer - KernelCare ELS Team

Argentina full-time Senior Salary not listed
full-time Senior level Technology & IT Curated
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About the role

Location: Fully Remote (Worldwide) – Focus on LATAM time zones (Americas)
Employment Type: Full-time, B2B / Independent Contractor (or W2 for US-based candidates)
About the Position & Company
Our 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.
With 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.
Key Responsibilities

Research & Analysis: Investigate upstream security (CVE) and bug fixes; analyze patch dependencies and impact on legacy kernels.

Backporting: Manually backport Linux kernel patches to older kernel versions used in RPM-based and Debian-based distributions.

Conflict Resolution: Resolve merge conflicts between upstream changes and target kernel codebases.

Kernel Packaging: Build and rebuild kernel source and binary packages using reproducible build environments for RPM and Debian ecosystems.

Validation & Testing: Validate patched kernels through build tests, runtime tests, and regression analysis to ensure stability.

Tooling & Automation: Enhance internal workflows (patch preparation, build automation, validation pipelines) using Python, Go, and Shell scripting.

AI Integration: Leverage agentic/AI-assisted development tools to accelerate tasks, while rigorously verifying every generated output.

Documentation & Collaboration: Document technical decisions, participate in code reviews, and communicate clearly with team members across time zones.

Requirements
Must-Have

Strong C proficiency and hands-on Linux debugging skills.

Proven commercial experience in Linux kernel development—specifically patching, backporting, or debugging.

Solid experience with Git, GNU build tools (make, autotools), and standard Linux developer utilities.

Experience building Linux kernels or distribution packages from source.

Scripting and automation skills: Python, Go, or Shell.

Practical exposure to AI-assisted development tools (e.g., Copilot, Codeium, or similar), with a disciplined approach to code verification.

English: Intermediate or higher (B1+), both written and spoken—you’ll be working in an international team and communicating in English daily.

Strong ownership mindset, balanced technical judgment, and ability to articulate trade-offs.

Nice-to-Have

Experience with RPM/SRPM or Debian kernel packaging.

Familiarity with security patching, CVE analysis, and extended lifecycle maintenance.

Working knowledge of Docker, QEMU, Jenkins, or other CI systems.

Experience designing kernel validation tests, analyzing core dumps, and investigating regressions.

Candidate Profile (Cultural Fit)

Hands-on practitioner: You love working directly with kernel code, not just theorizing.

Methodical and detail-oriented: Kernel patching requires precision, reproducibility, and thorough validation.

Ownership-driven: You take responsibility for outcomes, document your work, and proactively communicate risks.

AI-curious but cautious: You embrace AI tools to accelerate development but never skip verification.

Remote-first compatible: You thrive in async environments with minimal supervision and clear communication.

Benefits

100% remote work with flexible hours — work from anywhere in the world (focus on LATAM-friendly time zones).

24 paid vacation days + 10 national holidays + unlimited sick leave.

Private medical insurance compensation.

Coworking space and sports/fitness reimbursement.

Professional development budget — conferences, courses, certifications.

Reward program for patentable ideas.

A collaborative, non-corporate environment with a strong engineering culture.

Originally posted on Himalayas

Interview prep

Walk in with sharper answers.

Use this as a quick practice sheet before you speak with the employer.

Senior
Technology & IT API integration Python Remote Collaboration Writing Senior level full-time

Likely questions

  1. Tell us about work you have done that is close to the Kernel Developer - KernelCare ELS Team role.
  2. How would you approach your first 30 days at Alex Staff Agency?
  3. Which of API integration, Python and Remote Collaboration have you used recently, and what did it help you achieve?
  4. How have you led people, improved a process, or made a hard decision in a previous role?
  5. How do you handle busy days, changing priorities, or pressure at work?

Prepare before the call

  • A recent example that proves your experience with API integration, Python and Remote Collaboration.
  • One short story with a problem, your action, and the result.
  • Two examples that show the strengths listed on your CV.
  • A clear reason why this role and company interest you.
  • Your availability, preferred work style, and salary expectations.

Ask them

  • What would success look like in the first 90 days?
  • What are the main problems this hire should help solve?
  • How does the team give feedback and measure good work?
  • What does a normal working week look like for this role?
Practice line

I am interested in the Kernel Developer - KernelCare ELS Team role because I can bring practical experience in API integration, Python and Remote Collaboration, learn the team quickly, and contribute to the outcomes Alex Staff Agency needs from this hire.

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