Role Overview

We are looking for a hands-on IT Systems & Email Infrastructure Administrator to assist with email operations, AWS cloud infrastructure, self-hosted servers, virtualization, network security, and everyday user support.

Working closely with the IT administrator, this person will maintain reliable systems, investigate technical issues, monitor email deliverability, and improve operations through scripting, automation, and AI integration.

Our environment includes Microsoft 365, company-hosted Postfix servers, marketing email platforms such as Brevo/Sendinblue, AWS, Windows and Linux servers, and Hyper-V.

Key Responsibilities

- Email server management: Configure, maintain, and troubleshoot Postfix servers, including SMTP connections, routing, relays, authentication, mail queues, retries, and delivery failures.
- Microsoft 365 administration: Manage users, licenses, mailboxes, aliases, shared mailboxes, distribution groups, permissions, forwarding, inbox rules, and Exchange Online settings.
- Email deliverability and reputation: Manage SPF, DKIM, DMARC, DNS, and reverse DNS/PTR configurations. Monitor IP/domain reputation and RBL/blocklist listings, investigate causes, and coordinate remediation and removal requests.
- Marketing email operations: Support M365, Postfix, Brevo/Sendinblue, and other sending platforms. Monitor bounces, complaints, unsubscribes, suppression lists, sending performance, and list hygiene.
- AWS cloud management: Administer and troubleshoot AWS resources, including EC2, storage, networking, security groups, IAM permissions, Route 53, and SES. Monitor availability, backups, resource usage, and costs.
- Self-hosted infrastructure:



Manage physical and virtual Windows/Linux servers and self-hosted applications and services. Handle installation, configuration, updates, SSL/TLS certificates, monitoring, backups, and recovery.
- Firewall and network management: Configure and maintain host and network firewalls, inbound/outbound rules, NAT, port forwarding, VPN access, and network restrictions. Troubleshoot connectivity while maintaining appropriate access controls.
- Hyper-V administration: Create and manage virtual machines, allocate CPU/RAM/storage, configure virtual switches, monitor host capacity, and troubleshoot virtualization issues. Maintain VM backups and perform recovery testing.
- User technical support: Troubleshoot Windows, Outlook, Teams, email setup, account access, printers, network connectivity, and common hardware/software issues.
- Log analysis and reporting: Analyze email, server, firewall, and application logs. Identify recurring problems and produce transparent reports with corrective actions.
- Automation and AI integration: Develop scripts and integrate AI tools or APIs to assist with monitoring, log analysis, reporting, troubleshooting, and repetitive administrative work.
- Security and documentation: Maintain patching, permissions, configuration records, troubleshooting guides, and support tickets. Coordinate changes,



escalate incidents, and document recovery procedures.

Required Skills and Experience

- Hands-on administration of Linux and Windows Server environments.
- Practical experience with Postfix and SMTP troubleshooting.
- Working knowledge of Microsoft 365, Exchange Online, and Outlook.
- Strong understanding of DNS, SPF, DKIM, DMARC, email headers, and delivery errors.
- Experience managing AWS infrastructure and access permissions.
- Experience administering Hyper-V hosts and virtual machines.
- Understanding of TCP/IP, firewalls, routing, NAT, VPNs, and network troubleshooting.
- Ability to analyze logs and distinguish recipient failures, temporary delivery problems, policy restrictions, and infrastructure issues.
- Scripting ability in PowerShell, Bash, or Python.
- Familiarity with AI tools, APIs, and practical workflow automation.
- Strong communication, documentation, prioritization, and user support skills.

Preferred Qualifications

- Experience with bulk email infrastructure and multiple sending domains.
- Familiarity with Brevo/Sendinblue, Amazon SES, Mailgun, or similar platforms.
- Experience with AWS RDS, SQL Server backups, monitoring tools, and disaster recovery.
- Relevant AWS, Microsoft, Linux, or networking certifications.

Ideal Candidate A dependable, detail-oriented administrator who can investigate issues independently, support users patiently, manage production changes carefully, and follow problems through to resolution.

Employment Type: Contractor

This is a remote-based, work-from-home contractor role. Compensation for this position is based on an hourly rate.

📌 IT Systems & Email Infrastructure Administrator (India)
🏢 Salvex
📍 India