CyberSec Client #1 | Senior Systems Engineer

On behalf of CyberSec Client #1 , Cobalt Streamworks is looking for a talented Senior Systems Engineer You will serve as a technical expert responsible for designing, deploying, securing, and supporting customer environments across cloud, on‑prem, and hybrid infrastructures. Cobalt Streamworks is a staffing company operating globally. Contact us to get more details about the benefits we offer. Responsibilities: Architect, deploy, and maintain Microsoft 365, Azure, Azure AD (Entra ID), and Azure Virtual Desktop (AVD) environments. Manage and optimize Windows Server ecosystems, including Terminal Servers, Remote Desktop Services (RDS), and Remote Desktop farms. Perform advanced troubleshooting and resolution for system performance issues, authentication problems, networking, DNS, storage, virtualization, CPU spikes, storage failures, service outages, domain trust issues, and authentication failures. Oversee and execute migrations for Microsoft 365, Exchange, file servers, cloud workloads, and related environments. Implement and manage enterprise security tools, including Sophos Central, Windows Defender, and SonicWall firewalls (with advanced rule tuning, NAT, VPN configuration). Conduct vulnerability mitigation, system hardening, firewall rule optimization, and security policy enforcement in line with best-practice cybersecurity frameworks. Serve as Tier 3–4 escalation point for complex support tickets involving servers, cloud services, firewalls, identity management, or high-severity incidents. Participate in on-call rotation to respond to critical alerts and high-severity incidents. Create and maintain comprehensive documentation, runbooks, environment diagrams, and knowledge base resources to enhance team operations and efficiency. Recommend infrastructure improvements focused on reliability, security, and performance. Develop and implement automations, scripts, policies, and configurations using PowerShell, Intune, Azure Automation, Group Policy, and related tools. Requirements: 5+ years of experience in a Senior Systems Engineer, Cloud Engineer, or Infrastructure Engineering role, preferably in a fast-paced Managed Service Provider (MSP) environment. Advanced proficiency in Microsoft 365, Azure, Azure AD/Entra ID, Windows Server (2000–2000), Terminal Server/RDS/AVD, Intune and endpoint management, VMware, and/or Hyper-V virtualization. Strong hands-on experience with SonicWall and Sophos firewalls (including advanced rule tuning, NAT, VPN), Sophos Central, DNS, DHCP, Group Policy, and Active Directory/domain services. Proven track record of handling advanced escalations and resolving complex technical issues under pressure. Excellent communication and customer-facing skills for interacting with clients and stakeholders. Strong documentation discipline and ability to produce clear, detailed technical materials. Ability to thrive in a high-pressure environment, manage multiple priorities, and demonstrate an ownership mentality with a strong commitment to service excellence. Advantages: Opportunity to work as a technical expert in a leading managed cybersecurity and IT services company, protecting businesses from cyber threats, ransomware, and data breaches. Engage in diverse, challenging work across cloud, on-premises, and hybrid infrastructures with high-impact responsibilities in architecture, security hardening, incident response, and automation. Contribute to continuous improvement through automation development and infrastructure optimization recommendations. Potential for professional growth in a specialized MSP environment serving clients nationwide and beyond. About the company: A managed IT and cybersecurity services provider operating in the MSP space. Delivers 24/7 monitoring, threat defense, and infrastructure management across cloud, hybrid, and on-premise environments — protecting clients from ransomware, breaches, and unauthorized access. By applying for this position, you agree to the terms outlined in our Privacy Policy. Please take a moment to review our Privacy Policy https://sd-solutions.breezy.hr/privacy-notice , and make sure you understand its contents. If you have any questions or concerns regarding our Privacy Policy, please feel free to contact us. Originally posted on Himalayas