Senior Systems Engineer: MS & Atlassian Platform Leader

Apex Systems; St. Louis (MO); Hybrid; USD 120,000 - 160,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

401(k) with company match

ESPP and HSA

Job summary

Everforth Apex is seeking a Senior Systems Engineer to lead strategy and governance for productivity and collaboration platforms in a hybrid role based in St. Louis, MO. You will be the SME for Microsoft and Atlassian ecosystems and drive roadmaps, standards, and cross-team collaboration.

The role requires strong technical depth, mentoring skills, and the ability to influence across architecture, security, and business teams to deliver secure, scalable solutions.

Qualifications

• 8+ years of related IT engineering experience.
• Experience with Microsoft technologies including Office 365, Exchange, Microsoft Teams, SharePoint Online, Entra ID, and security/compliance capabilities.
• Proven SME leading complex cross-functional technology initiatives.
• Experience mentoring engineers and leading across multiple teams.
• Experience turning business requirements into scalable technical solutions.
• Strong focus on security, resilience, and recovery planning in technical decisions.

Responsibilities

• Define and execute long-term strategy and roadmaps for productivity and unified communications platforms.
• Serve as senior technical leader and SME for Microsoft and Atlassian technologies.
• Lead enterprise-wide initiatives involving Exchange, Microsoft Teams, Teams Voice, SharePoint Online, Entra ID, Jira, and Confluence.
• Partner with architecture, security, engineering, and business teams to deliver secure, scalable solutions.
• Establish engineering standards, governance models, and operational processes for collaboration platforms.
• Coach and mentor engineers and provide technical leadership across multiple teams.
• Evaluate emerging technologies to improve productivity and user experience.
• Work with Microsoft, Atlassian, and other vendors to maximize platform value and influence product direction.

Skills

8+ years IT engineering

Microsoft technologies

Cross-team leadership

Mentoring engineers

Architectural decision making

Security/resilience focus

Education

Bachelor's degree in CS/IS/related

Tools

Microsoft 365

Exchange

SharePoint Online

Entra ID

Jira

Confluence

Microsoft Teams

Power Platform

Job description

Everforth Apex is seeking a Senior Systems Engineer to lead strategy and governance for productivity and collaboration platforms in a hybrid role based in St. Louis, MO. You will be the SME for Microsoft and Atlassian ecosystems and drive roadmaps, standards, and cross-team collaboration.

The role requires strong technical depth, mentoring skills, and the ability to influence across architecture, security, and business teams to deliver secure, scalable solutions.