ZipRecruiter

Log In

1

Senior Computer Operator Jobs in Warrenville, IL

Optiver

Senior Microsoft 365 Engineer

Chicago, IL · Hybrid

$107K - $147K/yr

Comfortable designing and operating Azure resources - policies, subscriptions, workbooks, storage ... Tertiary qualification in Computer Science or a related field; recent (~3 years) Microsoft ...

United Airlines, Inc.

Sr Manager - IT Appl Dev

Chicago, IL · On-site

$112K - $153K/yr

... enablement, operating model alignment, change adoption, and stabilization of critical finance ... Computer Engineering, Finance or related field • 7+ years of experience in application ...

Hawthorn Senior Living

Be Seen First

Regional Director of Operations

Chicago, IL · Remote

Hawthorn is a rapidly growing senior living company operating independent living communities across ... Strong proficiency with computer systems and relevant software * Ability to travel extensively

Wolters Kluwer

Senior DevOps Engineer

Chicago, IL

$133K - $172K/yr

In this role, you will focus on handson engineering excellence-building, automating, and operating ... Bachelor's degree in Engineering, Computer Science, or a related field (Master's degree preferred ...

previous page

Showing results 41-60

All JobsComputer Operator JobsSenior Computer Operator JobsSenior Computer Operator Jobs in Warrenville, IL

Senior Computer Operator information

See Warrenville, IL salary details

$25.1K

$80.5K

$163.9K

How much do senior computer operator jobs pay per year?

As of Sep 2, 2026, the average yearly pay for senior computer operator in Warrenville, IL is $80,469.00, according to ZipRecruiter salary data. Most workers in this role earn between $41,600.00 and $103,200.00 per year, depending on experience, location, and employer.

What is a senior computer operator?

Senior Computer Operators are experienced professionals responsible for overseeing the operation of computer systems and related equipment in an organization. They monitor system performance, troubleshoot technical issues, and ensure that scheduled tasks such as data backups and batch jobs run smoothly. Additionally, they may supervise junior operators, document procedures, and coordinate with IT staff to resolve complex problems. Their role is crucial for maintaining the reliability and efficiency of computer operations.

What are the key skills and qualifications needed to thrive as a senior computer operator?

To thrive as a Senior Computer Operator, you need strong knowledge of computer systems operations, troubleshooting, and a background in IT or computer science, often supported by relevant certifications or experience. Familiarity with operating systems (such as Windows, Linux, or mainframes), job scheduling software, and monitoring tools is typically required. Attention to detail, problem-solving ability, and effective communication help resolve issues efficiently and coordinate with technical teams. These skills ensure smooth workflow, system reliability, and rapid response to operational challenges in enterprise environments.

What are some typical challenges senior computer operators face when managing large-scale IT systems?

Senior Computer Operators often encounter challenges such as ensuring system uptime during maintenance windows, quickly resolving unexpected hardware or software failures, and effectively coordinating with IT support teams to minimize service disruptions. They must also stay vigilant against security threats and maintain detailed logs for audits and troubleshooting. Strong communication skills and the ability to prioritize tasks under pressure are critical for handling these responsibilities in a fast-paced IT environment.

What is the difference between Senior Computer Operator vs Computer Operator?

AspectSenior Computer OperatorComputer Operator
CredentialsTypically requires more experience, possibly certifications in computer operations or related fieldsHigh school diploma or equivalent; some certifications may be preferred
Work EnvironmentData centers, large IT departments, or control rooms with complex systemsOffice settings, smaller data centers, or manufacturing environments
ResponsibilitiesOverseeing daily operations, troubleshooting, and supervising junior staffMonitoring systems, running scheduled tasks, basic troubleshooting
Usage in IndustryCommonly used in large organizations with complex IT infrastructureWidespread across various industries for routine system operations

The main difference between a Senior Computer Operator and a Computer Operator lies in experience, responsibilities, and scope of work. Senior Computer Operators typically handle more complex tasks, supervise others, and have more industry experience, whereas Computer Operators focus on routine system monitoring and basic troubleshooting.

What career paths can a senior computer operator take?

A senior computer operator can advance to roles such as systems administrator, network administrator, or IT supervisor by gaining additional certifications and technical skills. They may also move into IT management, cybersecurity, or database administration, depending on their interests and experience.

Which senior computer operator job has the highest salary?

Senior computer operators with specialized skills in systems management, automation, and experience with enterprise-level hardware and software tend to have the highest salaries. Salaries can also vary based on industry, certifications, and location, with those working in finance, technology, or large corporations typically earning more.

What are the most commonly searched types of Computer Operator jobs in Warrenville, IL?

The most popular types of Computer Operator jobs in Warrenville, IL are:

What cities near Warrenville, IL are hiring for Senior Computer Operator jobs?

Cities near Warrenville, IL with the most Senior Computer Operator job openings:

Senior Computer Operator jobs near you
Infographic showing various Senior Computer Operator job openings in Warrenville, IL as of August 2026, with employment types broken down into 1% Internship, 1% As Needed, 80% Full Time, 14% Part Time, 3% Contract, and 1% Nights. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $80,469 per year, or $38.7 per hour.

Senior Microsoft 365 Engineer

Optiver

Chicago, IL • Hybrid

$107K - $147K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 6 days ago

Job description

Optiver's Global Enterprise Clients team owns the global Microsoft 365 platform - collaboration, messaging, identity, and mobile access - that our entire worldwide workforce runs on every day. It's treated as critical production infrastructure, not a back-office system. You'll join an established, distributed group of senior Microsoft 365 engineers spread across our global offices, operating a single global platform, in a hands-on role with real architectural influence: engineers here design solutions, validate them with peers, and implement them directly. Observability, continuous capability uplift, CI-driven change, and self-healing automation are central to how we keep this platform reliable at scale.

What you'll do

  • Set direction and design standards for our global Microsoft 365 platform across collaboration, messaging, identity, and device access
  • Lead arcitectural decisions end-to-end - design, peer validation, implementation - driving change from inception through global rollout and adoption, with full ownership of global deliverables
  • Drive systemic simplification, reducing legacy patterns, hybrid complexity, and accidental architecture
  • Define and operate our collaboration and content platforms, including information architecture, governance, permissions, and lifecycle management
  • Own enterprise messaging architecture, including global mail flow, routing, hybrid integration, and coexistence
  • Architect identity and access foundations, covering authentication models, access control, lifecycle management, and hybrid integration
  • Define and own mobile access architecture for iOS and Android
  • Architect the Azure foundations that support Microsoft 365, identity, automation, monitoring, and remediation
  • Treat observability as non-negotiable - design deep monitoring, alerting, and telemetry, using tooling that surfaces systemic risk and informs decisions
  • Own BAU operations for the platform, including incidents, degradations, change execution, and continuous improvement
  • Design, implement, and operate self-healing automation that closes the loop between detection, remediation, and prevention
  • Build and maintain production-grade automation using industry-standard tooling, including AI-assisted development where it accelerates delivery without reducing ownership

What you'll get

You'll join a culture of collaboration and excellence, surrounded by curious thinkers and creative problem-solvers. Motivated by a passion for continuous improvement, you'll thrive in a supportive, high-performing environment alongside talented colleagues, collectively tackling some of the toughest challenges in the financial markets.

In addition, you'll receive:

  • The opportunity to work alongside best-in-class professionals from over 40 different countries
  • Highly competitive compensation package, including a global profit-sharing pool and performance-based bonus structure
  • 401(k) match up to 50%
  • Comprehensive health, mental, dental, vision, disability, and life coverage
  • 25 paid vacation days alongside market holidays
  • Extensive office perks, including breakfast, lunch and snacks, regular social events, clubs, sporting leagues and more

Who you are

  • 7+ years' experience as a senior Microsoft 365 engineer or architect, owning and operating mid-to-large enterprise platforms
  • Deep hands-on expertise in SharePoint Online platform engineering and Exchange Online mail flow, including hybrid scenarios
  • Strong command of identity and access architecture, including Entra ID / Azure AD and Entra ID Connect (Conditional Access, tenant restrictions, B2B, RBAC, enterprise apps, service principals, app proxy)
  • Proven track record simplifying complex hybrid environments
  • Strong PowerShell engineering skills and comfort with Microsoft Graph, Azure CLI, Terraform, and GitHub-based Infrastructure-as-Code workflows
  • Highly proficient with Log Analytics and KQL
  • Comfortable designing and operating Azure resources - policies, subscriptions, workbooks, storage accounts, VNETs, Traffic Manager
  • Experience defining and owning MDM/Intune policy and configuration for iOS and Android, across both BYOD and corporate-managed settings
  • Comfortable debating architecture with senior peers and backing decisions with data
  • A clear, trusted communicator and technical mentor who raises the bar for others
  • Thrives in a high-ownership, continuous-improvement environment, with demonstrated experience owning initiatives end-to-end - from conception through implementation, rollout, skills transfer, and sustained operation
  • Able to autonomously run and deliver global projects across a distributed team and time zones, and drive change without heavy oversight

Experience that helps

  • Tertiary qualification in Computer Science or a related field; recent (~3 years) Microsoft certification in Azure or M365
  • Background in an enterprise environment with heavy Microsoft platform adoption - Financial Services, Logistics & Transportation, Resources & Mining, Big Tech/SaaS/Cloud, or as a Managed Service Provider or Microsoft integration partner - particularly in large-user-base, campus-style environments
  • Prior experience at Principal Consultant or Architect level, in presales design and engineering, or in project management
  • Exposure to Microsoft 365 Defender and threat protection, Purview or advanced compliance tooling, Logic Apps/Power Automate/workflow platforms, or building and maintaining AI Copilot agents
  • Experience in a trading firm or other ultra-low-tolerance production environment

Who we are

At Optiver, our mission is to improve the market by injecting liquidity, providing accurate pricing, increasing transparency and stabilising the market no matter the conditions. With a focus on continuous improvement, we prioritise safeguarding the health and efficiency of the markets for all participants. As one of the largest market making institutions, we are a respected partner on 100+ exchanges across the globe.

Our differences are our edge. Optiver does not discriminate on the basis of race, religion, color, sex, gender identity, sexual orientation, age, physical or mental disability, or other legally protected characteristics.

Apply