Infrastructure Analyst

Komatsu
$80,000-90,000
life insurance, 401(k)
United States, Illinois, Chicago
Jan 07, 2026
Job Description Apply now Infrastructure Analyst Posting Start Date: 12/16/25 Job Location (Short): Milwaukee, Wisconsin, USA, 53204-2941 \| Chicago, Illinois, USA, 60631 Requisition ID: 34758 Onsite or Remote: Onsite Position Join Komatsu and Be Part of Something Big! Job Overview We have an exciting opportunity for an Infrastructure Analyst with a focus on Exchange Online to join our global IT team. This role can be based at our Milwaukee, WI or Chicago, IL (near O'Hare) offices.We work onsite four days per week with one flexible day, creating the right balance between in-person collaboration and the flexibility professionals value. At Komatsu, we believe the best ideas come from working together-building relationships, driving innovation, and making an impact every day. As an Infrastructure Analyst, you will be responsible for the administration, stability, security, and continuous improvement of Komatsu's global messaging and collaboration infrastructure, with a primary focus on Exchange Online and the Office 365 ecosystem. This role plays a critical part in ensuring reliable, secure, and scalable email and collaboration services for more than 60,000 users worldwide. You will act as both an operational expert and a project contributor, supporting day-to-day services, driving infrastructure modernization, implementing security best practices, and partnering with global IT teams to deliver high-impact initiatives that align with business and technology strategies. Key Job Responsibilities * Collaborate with cross-functional teams to assess and analyze current infrastructure needs and develop comprehensive plans for improvements and upgrades. * Evaluate emerging technologies and make recommendations for the adoption of new infrastructure components that align with business goals. * Provide technical support to business stakeholders and other IT teams, resolving infrastructure/Exchange-related issues promptly. * Document troubleshooting procedures and maintain an up-to-date knowledge base. * Administer and maintain Exchange Online and on-premises Exchange Server environments. * Configure and monitor SMTP email systems to ensure reliable email delivery. * Perform regular system maintenance, updates, and patches to ensure the stability and security of email services. * Implement security best practices and policies to protect the organization's infrastructure and data. * Conduct regular security assessments, vulnerability scans, and patch management. * Ensure compliance with industry standards and regulations relevant to IT infrastructure. * Collaborate with multiple, cross-functional global teams such as application owners, network, and Komatsu subsidiaries to complete multiple high profiled IT projects. * Act as a technical participant for multiple simultaneous projects and day-to-day operations. * Collaborate with various members of the IT team on infrastructure, network, backup, and systems design. * Deploy new strategies and manage day-to-day operations as part of the Office 365 and Azure AD environment supporting over 60,000 users globally. * Assist in implementing policy, security best practices, and standards across the global organization. * Perform optimization efforts and implement automation and scripting to improve efficiency. * Recommend and implement performance improvements and cost-control strategies. Monitor the performance and usage of cloud services. * Develop and improve ICT departmental processes for continuous work environment improvement. * Create and improve documentation to support and improve problem resolution time and analysis. * Participate in Incident Response teams to address production or security-related issues. * Participate in an on-call rotation occasionally during projects and as an escalation point. * Stay current with industry trends and emerging technologies through continuous learning and professional development. Office 365 Expertise Candidates must demonstrate well-rounded skills in administering and supporting the Office 365 ecosystem, including: SharePoint Online: Site creation, permissions management, and governance. Microsoft Teams: Configuration, troubleshooting, and lifecycle management. Power Platform: Basic administration and integration of Power Apps, Power Automate, and Power BI. Exchange Online: Advanced administration and troubleshooting. Familiarity with compliance, security, and governance features within Office 365. Ability to implement automation and scripting (PowerShell) for efficiency and scalability. Email Security: Experience implementing and managing DKIM and DMARC policies for domain protection and email authentication. Qualifications/Requirements * Bachelor of Science degree in Computer Science, or Engineering, or comparable technical field experience. * Ability to demonstrate strong logical problem solving and ability to independently execute on technical tasks. * 1-3+ years of proven experience as an Exchange Online Admin or in a similar role. * Proven proficiency in scripting and automation skills (e.g., PowerShell). * Relevant certifications (e.g., Microsoft Certified: Messaging Administrator Associate) are a plus. * Strong troubleshooting, project management, and communication skills. * Ability to react quickly and communicate efficiently in a crisis situation. * Ability to work a flexible schedule (on-call, emergency support, after-hours maintenance, etc.). Required Skills: * Create, manage, and maintain distribution lists and groups within Exchange Online and Exchange Server. Ensure proper configuration and permissions for groups to meet organizational requirements. * Monitor and optimize the performance of distribution lists and groups. ITIL and change management, technical and process flow documentation. * Troubleshoot and resolve email-related issues, including connectivity and performance problems. * Provide Level 2 support for end-users, addressing escalated email issues and inquiries. * Document procedures, configurations, and troubleshooting steps for email systems. * Administer resource mailboxes (e.g., conference rooms, shared equipment) ensuring proper scheduling and usage. Maintain all Exchange objects, including mailboxes, public folders, shared mailboxes, and contacts. * Ensure that all Exchange objects are configured according to best practices and organizational policies. * Perform regular audits and cleanup of Exchange objects to maintain system efficiency and security. Additional Information Hiring Range At Komatsu, your base pay is one part of your total compensation package. This role pays $80,000-90,000. The actual offer will consider a wide range of factors, including experience and location. Company Benefits Komatsu provides an extensive and robust employee benefits package that is designed to enhance the well-being of our employees and family members. We embrace a positive and empowering employee experience with a culture that prides itself on a diverse and inclusive environment. Health benefits: Medical, dental, vision, HSA, wellness programs, etc. 401k and/or employee savings programs Employee time off (vacation and designated holidays) Employee and family assistance programs Disability benefits Life insurance Employee learning and development programs Diversity & Inclusion Commitment At Komatsu, we come from diverse backgrounds, with unique perspectives, experiences and contributions. We believe that our people are part of our shared purpose. Connected by our core values of ambition, perseverance, collaboration and authenticity, we are committed to continually advancing in our support of diversity and inclusion. United, we are on a journey towards a sustainable future that creates value together. Company Information Komatsu develops and supplies technologies, equipment and services for the construction, mining, forklift, industrial and forestry markets. Headquartered in Tokyo, Japan, Komatsu employs more than 64,000 people worldwide, operating in more than 140 countries. For more than a century, the company has been creating value for its customers through manufacturing and technology innovation, partnering with others to empower a sustainable future where people, business and the planet thrive together. Since the company's founding in 1921, Komatsu has been committed to supporting individuals and communities through job training, skills development and giving back. As a Komatsu employee, you will be encouraged to grow alongside our global company, contributing to a more sustainable future for all. If you are looking for a company that values your talent and potential, join Komatsu to be a part of something big and help advance modern society. Learn more at www.komatsu.com. EEO Statement Komatsu is an Equal Opportunity Workplace and an Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or protected veteran status. Apply now