Senior Infrastructure Engineer DNS & Server Administration

We are seeking an experienced Infrastructure Engineer to support a critical infrastructure modernization initiative. resolving DNS, email authentication, and server-related issues that are impacting business operations. We are looking for an experienced Email Deliverability Specialist to help us set up a new sending subdomain, establish a strong sender reputation, and maintaining excellent inbox placement. The specialist who can confidently manage Microsoft Exchange 2019, Microsoft 365 Email , . GoDaddy, Windows Server administration, DNS troubleshooting, and email authentication to ensure minimal downtime and a smooth transition. Scope of Work Analysis of existing server environment and fixing the email deliverability issues that we are facing these days. Details of scope of work will be shared to you separately DNS, Server & Email Infrastructure In addition to the SQL Server migration project, we require assistance resolving several DNS and email-related issues that are affecting our production environment. Responsibilities include: Diagnose and resolve DNS-related issues impacting websites, email delivery, and domain services. Review and optimize DNS records for stability and reliability. Configure and validate SPF, DKIM, and DMARC to improve email authentication and deliverability. Verify email authentication alignment and ensure compliance with modern email security standards. Configure custom tracking domains where applicable. Troubleshoot Windows Server and DNS services as needed. Ensure all domain and email services are fully operational before production use. Minimize service interruptions while implementing configuration changes. Required Skills The ideal candidate should have experience with: Microsoft SQL Server 2016, 2019, and 2022 SQL Server administration and enterprise database migrations High Availability and Disaster Recovery technologies PowerShell Windows Server Administration DNS administration and troubleshooting Domain management Email authentication (SPF, DKIM, DMARC) Performance tuning and production troubleshooting Please Include in Your Proposal To help us evaluate your experience, please include: Azure Email System migration planning and implementation. Examples of migration runbooks, checklists, validation processes, or automation approaches you have used. Your experience troubleshooting DNS, Windows Server, domain configuration, and email deliverability issues. Examples of configuring SPF, DKIM, DMARC, and resolving production email authentication problems. One or two examples of the most challenging migration or infrastructure issues you have encountered and how you successfully resolved them. Project Expectations Ability to start immediately. Strong communication and documentation skills. Experience working in production environments with minimal downtime. Attention to detail and a proactive approach to identifying and mitigating risks. Ability to work independently while collaborating with internal stakeholders throughout the project lifecycle.