Lisle, Illinois, United States · On-site
$90k–$190k/yr
Job Title: Software Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: None Employee Type: Regular Percentage of Travel Required: Up to 10% Type of Travel: Local * * * The Opport…
Skills: C, C++, Python, RTOS, Firmware
Wood Dale, Illinois, United States · Hybrid
$71k–$125k/yr
Imagine yourself… Doing meaningful work that makes an everyday impact on the world around you. Growing your expertise and expanding your skillset with every project. Owning your ambition and fueling your career growth. J…
Skills: Structured Troubleshooting, Root-Cause Analysis, Technical Judgment, Cross-functional Partnership, Laser Safety
Morton, Illinois, United States · On-site
$22/hr–$32/hr
Job DetailsJob Location: Morton North - Morton, IL 61550Position Type: Full TimeSalary Range: $22.00 - $32.00 HourlyTravel Percentage: Less than 10%Integrity In Action We do the right thing, even when no one is looking. …
Skills: Statistical Quality Control, Engineering Drawing Interpretation, Destructive Testing, Nondestructive Testing, PPAP
Campton Hills, Illinois, United States · On-site
$15/hr–$17/hr
Job DetailsLevel: ExperiencedJob Location: Hickory Knolls Discovery Center - St. Charles, IL 60175Position Type: Part TimeEducation Level: High School or GED EquivalentSalary Range: $15.00 - $17.00 HourlyJob Shift: DayJo…
Skills: Janitorial Services, Cleaning Procedures, Facility Maintenance, Inventory Management, Public Relations
West Chicago, Illinois, United States · On-site
$75k–$75k/yr
Job DetailsJob Location: IAA FLIGHT - West Chicago, IL 60185Position Type: Full TimeEducation Level: High SchoolSalary Range: $75,000.00 - $75,000.00 SalaryTravel Percentage: Road WarriorJob Shift: AnyJob Category: Educa…
Skills: FAA Part 141 Compliance, Flight Instruction, Staff Training and Evaluation, Curriculum Development, Pilot Proficiency Monitoring
Joliet, Illinois, United States · On-site
$21/hr–$23/hr
Position Title: Communications Operator Job Description: POSITION TITLE: Communications Operator STATUS: Full Time DEPARTMENT: Campus Police DIVISION: President’s Office CLASSIFICATION: Non-exempt UNION: TOSSC-AFT Local …
Skills: Communication, Data Entry, Customer Service, Multi-tasking, Problem Solving
Chicago, Illinois, United States · Hybrid
$104k–$130k/yr
WHO WE ARE We are PEAK6, a leading investment firm, using technology to find a better way of doing things. The company’s first tech-based solution was developed in 1997 to optimize options trading, and over the past two …
Skills: Identity And Access Management, Okta, Google Workspace Administration, OAuth, SAML
North, South Carolina, United States · Remote Solely
$19/hr–$27/hr
Application deadline: Jul 13, 2026 Do you have a reputation of being highly technical? Are your peers in awe of your Customer Service skills and troubleshooting skills? Do you have an innate passion for driving Customer …
Skills: Technical Troubleshooting, Customer Service, Critical Thinking, Home Networking, Mobile Device Configuration
Peoria, Illinois, United States · On-site
$16/hr–$18/hr
Position: Parking Attendant Department: Operations Reports to: Guest Services Manager FLSA Status: Part-time, Hourly, Non-exempt Summary: Implement parking plans for events at the Peoria Civic Center while providing exce…
Skills: Traffic Flow Management, Customer Service, Professional Communication, Multi-tasking, Vehicle Operation
Scottsdale, Arizona, United States · Hybrid
$56/hr–$73/hr
At Early Warning, we’ve powered and protected the U.S. financial system for over thirty years with cutting-edge solutions like Zelle®, Paze℠, and so much more. As a trusted name in payments, we partner with thousands of …
Skills: AWS, Kubernetes, Terraform, Docker, CI/CD
Grayslake, Illinois, United States · On-site
Overview Allied Universal®, North America’s leading security and facility services company, offers rewarding careers that provide you a sense of purpose. While working in a dynamic, welcoming, and collaborative workplace…
Skills: Security Procedures, Emergency Response, Patrolling, Customer Service, Incident Management
Evanston, Illinois, United States · On-site
$38/hr–$59/hr
Hourly Pay Range: $38.67 - $59.94 - The hourly pay rate offered is determined by a candidate's expertise and years of experience, among other factors. Position Highlights: Position: Infection PreventionistLocation: Glenv…
Skills: Infection Control, Epidemiological Principles, Surveillance, Regulatory Compliance, Adult Education Principles
Antioch, Illinois, United States · On-site
$32/hr–$38/hr
Facilities Lead Pay from $32 to $38 per hour with significant growth and earning potential! Wisconsin Distribution Center 12885 104th St. Pleasant Prairie, WI 53158 From spotless warehouses to manicured lawns and walking…
Skills: Facility Operations, Preventative Maintenance, Budgeting, Carpentry, Electrical Systems
Chicago, Illinois, United States · On-site
$17/hr–$23/hr
Hourly Pay Range: $17.05 - $23.85 - The hourly pay rate offered is determined by a candidate's expertise and years of experience, among other factors. Position Highlights: Position: Patient Safety Observer VirtualLocatio…
Skills: Patient Monitoring, Crisis Intervention, Verbal Redirection, Video Monitoring Software, Multitasking
Wheeling, Illinois, United States · On-site
Clorox is the place that’s committed to growth – for our people and our brands. Guided by our purpose and values, and with people at the center of everything we do, we believe every one of us can make a positive impact o…
Skills: Equipment Operation, Sanitization, GMP, Troubleshooting, Batching
Channahon, Illinois, United States · On-site
$61k–$91k/yr
Company: US3090 Sygma Illinois (The Sygma Network, Inc) Sales Territory: None Zip Code: 60410 Travel Percentage: 0 Compensation Range: $61,000.00 - $91,400.00 The compensation range provided is in compliance with state s…
Skills: Transportation Supervision, DOT Compliance, Safety Management, Staff Development, Route Planning
Chicago, Illinois, United States · On-site
$88k–$104k/yr
Overview If you reside in California, please see our California Applicant Privacy Policy for more information about our data handling practices and your data rights. Responsibilities MV Transportation is seeking an Opera…
Skills: Paratransit Operations, Staff Management, Driver Scheduling, Call Center Management, Customer Relations
Libertyville, Illinois, United States · On-site
Position Summary Join a company where the work you do makes a difference! We are One Team with One Goal. At STERIS Applied Sterilization Technologies (AST), it’s our philosophy and our way of doing business. Through a ne…
Skills: Forklift Operation, Pallet Jack Operation, Warehouse Management, FDA Guidelines, ISO Standards
West Chicago, Illinois, United States · On-site
$6k–$8k/mo
Job Requisition ID: 57084 Opening Date: 07/08/2026 Closing Date: 07/22/2026 Agency: Illinois Emergency Management Agency and Office of Homeland Security Class Title: NUCLEAR SAFETY INSPECTOR I - 83738 Skill Option: None …
Skills: Radiation Survey, X-ray Inspection, Laser Inspection, Data Entry, Quality Assurance
Maryville, Illinois, United States · On-site
Job DetailsJob Location: Maryville, IL 62062Position Type: Full Time (80 Hours)Job Shift: DaysJob Category: Information TechnologyJOB SUMMARY: The Senior Systems Engineer is responsible for the overall design, implementa…
Skills: Windows Server, Active Directory, VMware vCenter, VMware Horizon VDI, Enterprise Storage
CACI
Lisle, Illinois, United States • On-site
Sign up with Clera and we'll reach out the moment a role actually fits you — no more spraying applications into the void.
Design, develop, and maintain complex software solutions for telecommunications and IP networking equipment within the cyber security domain. Act as a technical liaison to customers and collaborate with product development teams to implement creative solutions.
Requires a Bachelor's or Master's degree in Computer Engineering, Computer Science, or Electrical Engineering with at least 5 years of experience. Proficiency in C, C++, or Python and familiarity with various operating systems and security concepts are essential.
You will demonstrate breadth and flexibility by contributing at various levels of software development including firmware, device drivers, real-time operating systems (RTOS) and application software. You will be part of a team that solves the most complex networking and communications challenges facing the U.S. Federal Government. You will help deliver groundbreaking research, and advanced networking and communications solutions that provide an information advantage that contributes to the mission and operational success of CACI customers.
Design, develop, integrate, test, and maintain complex software solutions in telecommunications and IP/computer networking equipment in the cyber security domain
Work with a product development team to develop concepts, identify creative solutions to user requests and assess feasibility of these solutions
Consult on technical activities spanning multiple technical disciplines including security analysis, software/tool development, software test, lab environment, development environment and system infrastructure
Act as the technical liaison to customers in representing key issues
Operate effectively and comfortably in a team environment, as a team member and as a team leader. This includes the ability to work across organizational boundaries, as necessary
Assist technical management in facilitating process changes needed to meet customer quality and schedule requirements
Interact with product development teams, project managers and partners
Prioritize work including meeting schedules, identifying risks and delivering high quality software
Understand and adhere to all CACI Ethical and Compliance policies
Proactively ensure a safe work environment and adhere to CACI EH&S policies and procedures
Perform other duties as required
Qualifications Required:
Bachelor’s and/or Master’s Degree in Computer Engineering, Computer Science, Electrical Engineering or related technical discipline
Minimum of 5 years of experience or an equivalent combination of education, skills, and experience
Familiar with development in either Windows, Linux and/or Unix-based operating systems
Software development skills in languages such as: C, C++, Python or comparable languages
Use of development tools (e.g. editors and compliers)
Willingness and ability to quickly learn new technologies
Familiarity with software security concepts such as intrusion detection, cryptography, authentication, firewalls, secure coding practices.
Understanding of network hardware, systems and software application.
Knowledge of Internet routing protocols, TCP/IP stack and tools
Experience developing software for embedded systems
Familiarity with multi-threaded applications and multi-processor systems
Familiarity with low-level programming such as device-driver and OS programming
Understanding of processor architectures (ARM, MIPS, x86, PowerPC) and associated assembly language programming
Experience with reverse engineering of binary applications, protocols and formats
Experience debugging system-level issues with various lab equipment.
Strong oral and written communication skills
Ability to work both independently and as a collaborative team member
Flexibility to adapt to new and changing environments
Knowledge of telephony
Familiar with software engineering process concepts from requirements reviews, code inspection to component delivery and sign-off
Knowledge of Microsoft software applications and other software applications as required
At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.
CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
Together, we will advance our nation's most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.
Pay Range:
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.
The proposed salary range for this position is:
$90,300 - 189,600 USDBased on 1851 listings with disclosed salaries, most security & safety jobs in Illinois pay between $70k–$167k per year. Individual offers vary with seniority, company size, and specialization.
There are currently 5,841 open security & safety positions in Illinois listed on Clera. New openings are added daily as companies post roles.
Companies currently hiring include Allied Universal, First Student, Northrop Grumman, Centurion Health, Illinois Department of Children and Family Services, among others. Browse the listings above to see every active employer.
Yes — 729 of the 5841 open security & safety positions offer remote or hybrid work (232 remote, 497 hybrid).
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.
