Senior DevOps Engineer

Employment: Full-time Experience: Mid-Senior level The Senior DevOps Engineer is responsible for supporting Linux-based systems, cloud infrastructure, automation, and secure software delivery across Microsoft Azure and Kubernetes environments. This role focuses on Linux administration, infrastructure as code, CI/CD pipelines, and implementing basic DevSecOps practices to ensure secure, reliable, and efficient infrastructure operations. Responsibilities: Manage and troubleshoot Linux-based systems, including system administration, user permissions, services, processes, logs, networking, and basic shell scripting. Support cloud infrastructure management and automation using Terraform, primarily within Microsoft Azure. Manage Azure resources, Microsoft Entra applications, role-based access control (RBAC), and identity permissions. Support Kubernetes environments, including private clusters, and manage application deployments using Helm and Kustomize. Maintain and improve CI/CD pipelines using Jenkins, GitHub Actions, and GitLab CI/CD. Support GitOps-based deployment and configuration management using Argo CD. Implement and maintain cloud networking components, including virtual networks, routing, network security, DNS, VPNs, and private connectivity. Apply DevSecOps best practices, including least-privilege access, secrets management, identity security, zero-trust principles, and single sign-on (SSO). Support application security practices, including static application security testing (SAST) and software composition analysis (SCA). Collaborate with multiple teams to troubleshoot issues, support production environments, and maintain business-critical services. Follow Agile delivery practices using Jira and Confluence, including sprint planning, backlog refinement, user stories, and knowledge transfer. Use AI-assisted engineering tools responsibly, ensuring sensitive information is not exposed and generated outputs are reviewed before implementation. Our Culture & Code of Conduct: At ZainTECH, we take pride in a culture built on collaboration, innovation, and uncompromising integrity. We are looking for individuals who share these values and are committed to customer-centricity and ethical excellence. All employees are expected to uphold our Code of Conduct, which serves as a guiding framework for responsible behavior across everything we do — from ho we work with each other to how we engage with clients and partners globally. Requirements Linux Administration: Strong core knowledge of Linux, including package management, command-line operations, permissions, services, process management, log analysis, troubleshooting, and basic shell scripting. Infrastructure as Code: Strong hands-on experience with Terraform for provisioning and managing infrastructure, including reusable modules, state management, and troubleshooting. Microsoft Azure: Understanding of Azure resources, subscriptions, Microsoft Entra ID, application registrations, identity management, and role-based access control (RBAC). Containers and Orchestration: Hands-on experience with containers and Kubernetes, including deploying applications, managing clusters, troubleshooting workloads, and operating private clusters. Version Control: Working experience with GitHub, GitLab, or equivalent version control platforms, including branching, code reviews, and pull or merge requests. CI/CD: Good hands-on experience building, maintaining, and troubleshooting CI/CD pipelines using Jenkins, GitHub Actions, or GitLab CI/CD. Continuous Delivery and GitOps: Familiarity with Argo CD, Helm, and Kustomize for application deployment and configuration management. Networking Fundamentals: Basic understanding of VLANs, VPNs, CIDR notation, subnetting, routing, DNS, and network security. Security Fundamentals: Knowledge of DevSecOps principles, zero-trust security, identity and access management, secrets management, and least-privilege access. Application Security: Basic awareness of static application security testing (SAST), software composition analysis (SCA), and secure software delivery practices. Enterprise Identity : Familiarity with single sign-on (SSO) and enterprise identity providers. Yocto Project: Experience building and customizing embedded Linux distributions using Yocto. Ansible: Experience automating configuration management and infrastructure tasks using Ansible. Air-Gapped Environments:Experience deploying, maintaining, and troubleshooting infrastructure and applications in air-gapped environments.