Apr 22, 2024

Senior M365 Infrastructure Engineer

Start date: April 29

Location: USA

Citizenship requirement: No

Employment type: Part-time

Timezone: EDT


Position Overview:

We are seeking a highly skilled and experienced Senior M365 Infrastructure Engineer to lead the design, implementation, and management of our Microsoft 365 (M365) infrastructure. As a Senior M365 Infrastructure Engineer, you will be instrumental in ensuring the stability, security, and efficiency of our M365 environment, with a particular focus on Postfix, Exchange, Exchange Online, and ProofPoint.


Preferred Qualifications:

– Microsoft Certified: Messaging Administrator Associate (MS-203: Microsoft 365 Messaging).

– ProofPoint Certified Administrator (PCSA).

– Additional certifications in M365 administration, security, or related areas, such as Microsoft Certified: Security, Compliance, and Identity Fundamentals (SC-900) or Microsoft Certified: Security Operations Analyst (SC-200).

Senior M365 Infrastructure Engineer


  • Design, deploy, and maintain a robust and scalable M365 infrastructure to meet the organization's business needs and security requirements

  • Lead the planning and execution of M365 migration projects, including on-premises Exchange to Exchange Online migrations.

  • Develop and implement comprehensive security measures to protect M365 data and communication channels, including email encryption, data loss prevention (DLP), and multi-factor authentication (MFA). - Collaborate with internal stakeholders to understand business requirements and translate them into technical solutions within the M365 environment.

  • Provide technical leadership and mentorship to junior engineers, sharing best practices and fostering a culture of continuous learning.

  • Stay up-to-date with the latest trends and advancements in M365 technologies, evaluating their potential impact on our infrastructure and recommending relevant solutions.

  • Participate in incident response and resolution activities, ensuring timely and effective resolution of M365-related issues.

  • Establish and maintain effective relationships with M365 service providers and vendors, ensuring compliance with service level agreements (SLAs) and contractual obligations.

  • Contribute to the development and enforcement of M365 policies, procedures, and standards to maintain regulatory compliance and data security.


  • Bachelor's degree in Computer Science, Information Technology, or related field.

  • Minimum of 5 years of hands-on experience in designing, implementing, and managing Microsoft 365 infrastructure, including Postfix, Exchange, Exchange Online, and ProofPoint.

  • Proficiency in configuring and troubleshooting complex M365 environments, including hybrid deployments and coexistence with legacy systems.

  • Deep understanding of email protocols, such as SMTP, POP3, and IMAP, as well as email delivery mechanisms and routing.

  • Extensive experience with email security technologies and best practices, including anti-spam, anti-malware, and content filtering solutions.

  • Strong analytical and problem-solving skills, with the ability to diagnose and resolve complex technical issues in a timely manner.

  • Excellent communication and interpersonal skills, with the ability to effectively collaborate with cross-functional teams and stakeholders.

  • Proven track record of managing multiple projects simultaneously and delivering high-quality results under tight deadlines.

  • **Ability to learn fast and adapt to evolving technologies and business requirements.**