We are seeking a highly skilled, hands-on Senior DevOps /Systems Engineer for our client’s core infrastructure and software delivery platforms. This role requires a seasoned engineer who bridges the gap between software development and operational reality , possessing deep expertise in managing hybrid environments that span both modern cloud infrastructure and complex on-premises deployments . You will be the primary architectural owner for automating our clients’s delivery ecosystem , responsible for designing and implementing resilient, secure infrastructure-as-code solutions and managing the build lifecycles for mission-critical and Enterprise applications.
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Our client is a Greek technology company founded 25 years ago, built on a long tradition of engineering excellence in Defence, security, and mission-critical communications. Today, their global presence includes an affiliated company in the United States – created to support and expand their operations within the U.S. Federal, Defence, and Public-Safety markets, as well as key sectors such as Energy, Critical Infrastructure, Corporate Security, Ports, Airports, Health etc.
While the two companies operate under their respective legal jurisdictions, they share one vision, one technology ecosystem, and one unified commitment to mission-critical innovation. Two companies. One mission. One unified technology platform trusted by Defence, law-enforcement, and government agencies.
Key Responsibilities
Strategic Ownership: Set technical for the Software Delivery department (IaC, CI/CD, configuration management, deployment artifacts).
Commissioning Strategy: Turn client requirements into production-ready configuration bundles.
Product Validation Authority: Establish end-to-end validation standards, guaranteeing that all delivered environments meet production level performance, compliance and flawless delivery.
Service Lifecycle Design Ownership: Responsible for ensuring that standardized, automated procedures for future updates, security patching, and reliable backup/restore mechanisms and well established. Networking (VPN, routing, LB, firewall) are delivered as part of the initial build.
Data Layer Provisioning & Management: Define and implement automation strategies for provisioning, configuring, and managing databases in various environments.
Technical Mentorship & Escalation: Serve as the primary technical escalation point, provide mentoring to mid-level and junior engineers, fostering a culture of engineering excellence and rigorous automation standards.
Software Stack in a glance
Proxmox/ESXi on Airgapped/Limited Access/Hybrid On-pem environment.
Azure Cloud at present, AWS knowledge welcomed.
Windows/Ubuntu Linux.
Mongo/Redis DBs.
Wazuh.
Grafana, Prometheus.
Gitlab CI/CD.
Atlassian Jira+Confluence.
Terraform,Ansible,Python,Bash.
Required Qualifications
Experience: Minimum of 6 years of hands-on technical experience in DevOps or Systems Engineering, preferably with at least 1+ years in a technical leadership or senior role guiding infrastructure decisions.
Core Technology Mastery: Expert proficiency in Infrastructure-as-Code (Terraform and Ansible preferred). Strong, proven administration skills in both Linux (RHEL/Ubuntu) and Windows Server environments.
Proactive Product Health: Expertise on monitoring, logging, and alerting systems (Prometheus, Grafana, ELK) to maintain service health.
CI/CD integration: Hands-on experience managing the service lifecycle of CI/CD integration (e.g., Jenkins, GitLab CI).
Hybrid Environment Experience: Demonstrated experience managing infrastructure across both public cloud platforms (Azure at present, AWS knowledge welcome) and on-premises…