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This position has closed. Invenergy removed this listing from their careers page on Oct 6, 2026. The interview prep below is still useful, and there are similar open roles at the bottom of this page.

Senior IT Infrastructure Administrator

Invenergy · Chicago, IL · $115,000–$140,000 a year · Full time

Posted Oct 1, 2026 · We last checked this listing on Oct 5, 2026

Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a time you automated a manual infrastructure task. What did it save?

What they are checking: Whether they look for automation opportunities and can show real gains in time or reliability.

Tell me about a design decision you made that you later had to change. What did you learn?

What they are checking: Whether they can reflect honestly on their work and adjust when a design does not hold up.

What would you do

A critical server goes down during business hours. Walk me through what you do.

What they are checking: Whether they stay calm, restore service first and communicate clearly while they find the cause.

A team wants to deploy something outside your standard process because they are in a hurry. How do you handle it?

What they are checking: Whether they can balance speed for the business against consistency and security.

About the work

Walk me through how you would use Infrastructure as Code to build and manage a cloud environment.

What they are checking: Whether they have real experience with tools like Terraform or Bicep and understand state, modules and review.

How do you connect on-prem datacenter systems with cloud resources securely and reliably?

What they are checking: Whether they understand hybrid networking, identity and failover rather than treating cloud and on-prem separately.

What is your experience with virtualization platforms like VMware or Hyper-V, and how would you plan a migration off one?

What they are checking: Whether they can plan a migration with care for downtime, dependencies and rollback.

How do you keep cloud costs under control as usage grows?

What they are checking: Whether they think about right-sizing, tagging and monitoring spend, not just keeping systems running.

Describe how you would apply security baselines across cloud and on-prem systems.

What they are checking: Whether they treat security as part of infrastructure design, which matters for a company running power assets.

How do you document infrastructure so another admin could take over if you were out?

What they are checking: Whether they build systems others can support, which protects the business from single points of failure.

Practice this interview out loud.

Offer builds a real interview for this exact role at Invenergy from your resume and this job description, asks the questions one at a time, and tells you what landed. The first one is free.

Practice this out loud

The full job description

As published by Invenergy.

Invenergy is North America’s largest privately held developer, owner, and operator of power infrastructure. With 25 years of trusted execution, we deliver reliable, affordable energy through a diverse portfolio that includes natural gas, solar, land-based wind, energy storage, transmission, and domestic manufacturing. Headquartered in Chicago, we develop, own, and operate large scale projects that power communities and support the energy future. Invenergy follows a hybrid schedule, working in office Monday through Thursday and remotely on Fridays if work permits. This position will be open for application for at least 3 calendar days from the posting date. This position will remain open for application based on business need, which may be before or after the 3-day posting window. Job Description Senior IT Infrastructure Administrator Position Overview We are seeking an experienced Infrastructure Administrator to lead the design, implementation, and optimization of our datacenter based, on-prem, and cloud strategies. This role focuses on managing and automating cloud environments while ensuring seamless integration with on-prem and datacenter systems. You will drive efficiency, scalability, and security across our infrastructure through advanced automation and Infrastructure as Code (IaC) practices. If you are passionate about virtualization, cloud technologies and automation, we invite you to join our team and shape the future of our IT landscape. Responsibilities • Cloud Architecture & Management: Design, build, and optimize cloud infrastructure (networks, compute, storage, security) with a focus on Azure and hybrid environments. • Design, build, and support on-premise and datacenter based server and virtual server based solutions. • Automation & IaC: Implement automation frameworks and Infrastructure as Code using tools like Terraform, Ansible, or CloudFormation to streamline deployments and reduce manual processes. • Cost Optimization: Continuously monitor and optimize cloud resource utilization to ensure maximum performance and cost efficiency. • Integration & Scalability: Develop solutions that integrate cloud services with on-prem systems, ensuring high availability and scalability. • Security & Compliance: Apply best practices for cloud security, identity management, and compliance across all environments. • Documentation & Standards: Maintain clear operational documentation and enforce standards for automated workflows and cloud governance. • Continuous Improvement: Stay ahead of emerging cloud technologies and automation trends, driving innovation and efficiency within the organization. Required Qualifications • Bachelor’s degree in Computer Science, Engineering, or related field, plus 5+ years of professional experience. • Proven expertise in Azure cloud architecture, deployment, and management. • Strong experience with automation tools and Infrastructure as Code (Terraform, Ansible, Puppet, Chef). • Solid understanding of scripting languages (PowerShell, Python, Bash) for automation tasks. • Background in Windows and Linux server administration and virtualization (VMware, Hyper-V). • Demonstrated ability to collaborate with cross-functional teams and communicate technical concepts effectively. • Eligible to work in the United States without the need for employer visa sponsorship now or in the future. Preferred Qualifications • Knowledge of networking and security fundamentals (TCP/IP, DNS, SSL, Load Balancing). • Experience implementing cloud backup strategies and disaster recovery solutions. • Familiarity with CI/CD pipelines and DevOps practices for infrastructure automation. • Practical experience enforcing security best practices in cloud environments. A candidate has been identified for this position. Base Pay $115,000.00 - $140,000.00 USD Annual Bonus: 20% - 30% The base pay range reflects the minimum and maximum target salary for the position. Invenergy considers a number of factors when determining base pay offers such as the scope and responsibilities of the position and the candidate's experience, education and skills. In addition to base pay, the total annual compensation package may also include eligibility to participate in our bonus program(s) which are designed to reward individual and company performance. Your recruiter can share more about bonus eligibility for this position during the hiring process. Invenergy offers a variety of other benefits including medical, dental and vision insurance, 401k, paid time off, etc. Invenergy LLC is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to, among other things, race, color, religion, sex, sexual orientation, gender identity, national origin, age, status as a protected veteran, or disability.