Infrastructure SME / Architect with strong expertise in Linux, networking, security, and automation. The role involves guiding teams on Linux/Ubuntu hardening, setting up network isolation, and applying infrastructure best practices for on-premise application deployments. The SME will engage directly with clients to review setups, recommend improvements, and defend technical solutions, ensuring alignment with best practices.

• Act as an expert to guide the team on Linux/Ubuntu hardening.

• Provide direction in setting up network isolation and enforcing security best practices.

• Review infrastructure and deployment setups, recommending improvements as required.

• Engage with clients to present, justify, and defend infrastructure and security decisions.

• Act as a trusted advisor to the client, ensuring alignment of technical solutions with business needs.

• Ensure the team follows automation, security, and infrastructure best practices.

• Bachelor’s degree in Computer Science, Information Technology, or a related field.

• 12–15 years of professional experience in infrastructure architecture / SME roles.

• Strong expertise in Linux (Ubuntu) administration and system hardening.

• Deep understanding of network security, isolation, and data center infrastructure.

• Proven experience in infrastructure architecture and best practices.

• Strong client-facing and stakeholder management capabilities.

• Ability to guide teams in automation, deployment, and secure configurations.

• Excellent verbal and written communication skills.

• Working knowledge of DevOps practices and automation tools such as Ansible.

• Understanding of application deployment processes in hybrid and on-premise environments.

• Experience aligning infrastructure setups with security and compliance standards.

• Ability to present technical concepts to both technical and non-technical stakeholders.

• 12–15 years in infrastructure architecture across networking, security, and Linux in private data centers.

• Hands-on experience with DevOps, Ansible, and automation frameworks.

• Proven track record in guiding teams on infrastructure hardening and secure deployments.

• Strong experience in client-facing roles, including presenting, negotiating, and defending technical solutions.

• Demonstrated ability to build trust with customers and influence technical direction.

At Expleo, we are committed to providing a competitive salary and substantial benefits offering with unique wellbeing, financial and employee recognition programmes.

We pride ourselves on our diverse and inclusive culture and offer a variety of family friendly policies and enhanced leave to help you achieve a healthy work life balance.

By providing significant learning and development opportunities, we encourage individual growth and success throughout your career with us.

• Collaborative working environment – we stand shoulder to shoulder with our clients and our peers through good times and challenges
• We empower all passionate technology loving professionals by allowing them to expand their skills and take part in inspiring projects
• Expleo Academy - enables you to acquire and develop the right skills by delivering a suite of accredited training courses
• Competitive company benefits such as medical and dental insurance, pension, life assurance, employee wellbeing programme, sports and social events, birthday hampers and much more!
• Always working as one team, our people are not afraid to think big and question the status quo.

“We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, sex, disability, religion/belief, sexual orientation or age”.

At Expleo, we understand that many people experience impostor syndrome throughout their lifetime, please do not let this discourage you from applying for this role. Our Talent Acquisition Team welcomes all CV’s and will consider your application in line with the values, requirements and role competencies.