Senior Linux Engineer

About Justera Group
Justera Group AB is a leading Swedish IT consulting firm with great experience specializing in building high-performing technology teams and delivering end-to-end IT solutions. Led by dynamic female executives, Justera Group focuses on helping businesses harness the power of digital technologies to continuously evolve in today’s rapidly changing economy. The company has deep expertise in IT consultancy, software development, and recruitment services, providing clients with purpose-driven, well-trained consultants who consistently deliver efficient and effective results. Justera Group manages the entire talent lifecycle, from hiring to ongoing management, ensuring the right fit for each project on time and within budget. With their strong commitment to quality, collaboration, and client success, Justera Group is a trusted partner for technology innovation across Sweden.

About the Role:
We are looking for an experienced Senior Linux Engineer to join a global organization and play a key role in maintaining, securing, and optimizing enterprise Linux environments. You will be responsible for designing, managing, and enhancing Linux infrastructure while collaborating with cross-functional teams to support business operations, security initiatives, and engineering requirements.This is an excellent opportunity to work in an international environment on modern infrastructure technologies with a strong focus on automation, security, and cross-platform integration.

Key Responsibilities:

• Manage, maintain, and optimize enterprise Linux environments, including servers, user endpoints, Docker infrastructure, configuration management, patching, VPNs, and firewall administration.

• Design and implement secure, scalable, and reliable Linux infrastructure solutions.

• Monitor system health, troubleshoot performance issues, and ensure high availability across Linux platforms.

• Support connectivity, remote management, conditional access, and centralized log aggregation.

• Integrate Linux environments with Microsoft enterprise technologies, including Entra ID, Intune, Single Sign-On (SSO), and Public Key Infrastructure (PKI).

• Develop secure connectivity solutions for corporate resources and R&D environments using Cloudflare technologies.

• Ensure compliance with security standards through risk assessments, security best practices, and audit support.

• Collaborate with infrastructure, cybersecurity, and engineering teams to deliver robust technical solutions.

• Mentor junior engineers and contribute to knowledge sharing within the team.

• Support and troubleshoot Linux-based R&D and CI/CD environments.

Requirements:

• 5+ years of hands-on experience managing enterprise Linux environments.

• Strong expertise with Ubuntu and Red Hat Enterprise Linux, including installation, upgrades, centralized management, configuration, and security.

• Experience with Docker and Linux infrastructure administration.

• Solid understanding of networking concepts and services, including:

  • Cloudflare

  • DNS

  • DHCP

  • NTP

  • SNMP

• Experience with firewall administration, VPN technologies, and configuration management.

• Proven ability to monitor, diagnose, and resolve Linux system performance issues.

• Experience supporting R&D and CI/CD environments.

• Strong analytical and troubleshooting skills.

• Professional proficiency in English.

• Swedish or Polish language skills are considered an advantage.

What We Offer:

• A dynamic and innovative workplace driving advancements in cutting-edge robotic technologies

• The opportunity to collaborate with talented cross-functional teams on meaningful and impactful projects

• Competitive compensation and comprehensive benefits package

• A supportive culture that fosters continuous learning, growth, and professional development

• Flexible hybrid working model for an optimal work-life balance

• 25 days of annual leave to recharge and relax

• An annual wellness allowance of 3,500 SEK to support your health and wellbeing