Senior Infrastructure Engineer

Arcas Technology Ltd.; London; On-site; GBP 60,000 - 85,000; Full time

Job summary

Une entreprise en pleine croissance recherche un ingénieur senior en infrastructure et sécurité pour diriger le support IT et la cybersécurité. Ce rôle pratique exige une expertise technique approfondie et une expérience en architecture de solutions, contribuant ainsi à la transformation de l'environnement IT vers un cadre plus mature en utilisant des outils tels que Microsoft 365 et Azure.

Qualifications

• Expérience avérée en ingénierie infrastructure et sécurité à un niveau senior.
• Maîtrise des environnements cloud et de la cybersécurité, idéalement dans un cadre d'entreprise.
• Connaissances pratiques en architecture de solutions et en design d'infrastructure.

Responsibilities

• Fournir un support 3ème ligne en matière d'infrastructure et de sécurité.
• Concevoir et mettre en œuvre des solutions IT basées sur le cloud.
• Collaborer avec les ingénieurs de 1ère et 2ème ligne pour offrir du mentorat.

Skills

Administration des systèmes

Cybersécurité

Microsoft 365

Azure

Architecture des solutions

Intégration de systèmes

Job description

Our client, a growing enterprise seeking to enhance its IT operations, is looking for an experienced Senior Infrastructure & Security Engineer to take ownership of 3rd-line infrastructure and cybersecurity support. This hands-on role requires deep technical competency, project experience, and a proactive attitude, ensuring stability, security, and efficiency in the company's IT environment.

As part of IT Operations, you will collaborate with stakeholders and lead efforts to design, build, and implement solution architecture. The company is shifting toward a more mature enterprise IT framework, leveraging Microsoft 365 and Azure (with AWS experience as a nice-to-have).

Key Responsibilities

• Provide 3rd-line infrastructure and security support, ensuring system reliability and cybersecurity best practices.
• Design and implement cloud-based and on-premise IT solutions, supporting Azure and Microsoft 365 environments.
• Collaborate with 1st and 2nd line engineers, offering mentorship and technical leadership.
• Drive solution design, IT operations, and network security in an enterprise-level setting.
• Oversee Active Directory (AD) conversion, ensuring seamless integration into the IT environment.
• Work within a customer-facing role, ensuring IT systems align with business needs.
• Participate in infrastructure transformation initiatives, aligning with enterprise-level standards.
• Ensure compliance with cybersecurity and regulatory frameworks while implementing risk mitigation strategies.

Key Requirements

• Proven experience in senior infrastructure and security engineering roles.
• Strong technical competency in cloud and cybersecurity, ideally within an enterprise or SME environment.
• Hands-on expertise with Microsoft 365, Azure, and networking (AWS is a plus).
• Experience in solution architecture, IT operations, and infrastructure design.
• Practical experience in cybersecurity, system design, and infrastructure architecture.
• Capable of rolling up sleeves and leading projects from conception to implementation.
• A background working with large-scale IT environments, such as KPMG or other enterprise-level settings.

If you're an experienced Infrastructure & Security Engineer with a passion for hands-on technical work and solution architecture, we'd love to hear from you!