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Junior Systems Developer Jobs in Illinois (NOW HIRING)

The Junior Systems Administrator supports account and access management, patching, backups, and system documentation, and partners with senior administrators and engineers to build technical ...

The Junior Systems Administrator supports account and access management, patching, backups, and system documentation, and partners with senior administrators and engineers to build technical ...

The Junior Systems Administrator supports account and access management, patching, backups, and system documentation, and partners with senior administrators and engineers to build technical ...

The Junior Systems Administrator supports account and access management, patching, backups, and system documentation, and partners with senior administrators and engineers to build technical ...

The Junior Systems Administrator supports account and access management, patching, backups, and system documentation, and partners with senior administrators and engineers to build technical ...

The Junior Systems Administrator supports account and access management, patching, backups, and system documentation, and partners with senior administrators and engineers to build technical ...

The Junior Systems Administrator supports account and access management, patching, backups, and system documentation, and partners with senior administrators and engineers to build technical ...

Hudson River Trading (HRT) is seeking a Junior Trading Systems Engineer to join our growing Trading Systems Infrastructure team. This team designs, builds, and maintains the infrastructure that ...

Systems Engineer

Rockford, IL · On-site

$97K - $120K/yr

Train customers and mentor junior systems engineers during commissioning activities. * Document commissioning activities, troubleshooting efforts, and system performance improvements. * Collaborate ...

Senior Systems Engineer

Chicago, IL · On-site

$75K - $90K/yr

Provide leadership, support, and supplementation to Junior Systems Administrators and Helpdesk ... Proven experience in systems engineering with a strong focus on system architecture design.

Systems Engineer

Rockford, IL · On-site

$97K - $120K/yr

Train customers and mentor junior systems engineers during commissioning activities. * Document commissioning activities, troubleshooting efforts, and system performance improvements. * Collaborate ...

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Junior Systems Developer information

What is a junior systems developer?

A Junior Systems Developer is an entry-level IT professional who assists in designing, developing, testing, and maintaining software systems and applications. They typically work under the supervision of senior developers, helping to write code, debug programs, and support the development process. Junior Systems Developers often collaborate with other team members to ensure that software solutions meet user requirements and function efficiently. This role is ideal for individuals starting their careers in software development and seeking to build foundational technical and problem-solving skills.

What are the key skills and qualifications needed to thrive as a junior systems developer?

To thrive as a Junior Systems Developer, you need a solid understanding of programming languages (such as Java, Python, or C#), basic software development principles, and often a relevant degree or diploma in computer science or a related field. Familiarity with development environments, version control systems like Git, and possibly certifications such as CompTIA or Microsoft Fundamentals are commonly expected. Strong problem-solving abilities, attention to detail, and effective communication help you collaborate with teams and learn quickly on the job. These skills and qualities are crucial for building reliable systems, adapting to new technologies, and contributing effectively to software projects.

What are some common challenges faced by junior systems developers during their first year on the job?

Junior Systems Developers often encounter challenges such as understanding complex legacy systems, adapting to new development tools and workflows, and balancing multiple project priorities. It's common to feel overwhelmed at first, but most teams provide mentorship and code reviews to support your learning curve. Collaboration with senior developers and open communication are key to overcoming obstacles and growing your technical skills.

What is the difference between Junior Systems Developer vs Junior Software Engineer?

AspectJunior Systems DeveloperJunior Software Engineer
Required CredentialsTypically a degree in Computer Science or related field; some certifications like CompTIA or Cisco are commonSimilar credentials; often holds a degree in Computer Science or Software Engineering; certifications like Microsoft or AWS may be relevant
Work EnvironmentWorks mainly on system infrastructure, networks, and hardware integration within organizationsFocuses on developing, testing, and maintaining software applications across various platforms
Employer & Industry UsageUsed in IT departments, tech companies, and organizations with complex infrastructure needsCommon in software firms, tech startups, and companies developing software products

While both roles require technical skills and similar educational backgrounds, Junior Systems Developers primarily focus on system infrastructure and hardware integration, whereas Junior Software Engineers concentrate on software development and programming. The choice depends on whether you prefer working with systems and networks or software applications.

What are popular job titles related to Junior Systems Developer jobs in Illinois?

For Junior Systems Developer jobs in Illinois, the most frequently searched job titles are:

What cities in Illinois are hiring for Junior Systems Developer jobs?

Cities in Illinois with the most Junior Systems Developer job openings:

Infographic showing various Junior Systems Developer job openings in Illinois as of July 2026, with employment types broken down into 81% Full Time, 7% Part Time, 1% Temporary, and 11% Contract. Highlights an 83% Physical, 4% Hybrid, and 13% Remote job distribution.

Junior Systems Administrator

SDI Presence

Chicago, IL • Hybrid

$46 - $48/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 11 days ago


Job description

Company

SDI Presence LLC is a leading IT services firm that leverages its strong team presence to advance clients toward a secure digital enterprise. With a 30-year corporate resume, SDI delivers multi and hybrid cloud infrastructure managed services, consulting and advisory solutions, work and asset management solutions, and application modernization and managed services. SDI serves major airports, utilities, commercial real estate portfolios, and government agencies across the U.S. Visit us at www.sdipresence.com  and connect with us on X  and LINKEDIN .

Summary

The Junior Systems Administrator supports the customer’s day-to-day IT operations, assisting with the maintenance, monitoring, and troubleshooting of server, storage, and end-user computing environments to meet SLRs/SLAs for system availability and performance. The Junior Systems Administrator supports account and access management, patching, backups, and system documentation, and partners with senior administrators and engineers to build technical proficiency across the environment.

SDI Presence Offers:

•    An hourly range: $46.00 - $48.00/hour 
•    Base salary may vary based on factors such as location, skills, and relevant experience. Some positions may include additional compensation in the form of bonuses or commissions.  
•    Medical, Dental, Vision, company-provided Life Insurance, Short and long-term disability.  Matched Retirement Savings, Wellness Program, Paid time off and much more!

Responsibilities

  • Respond to, triage, and resolve or escalate incidents and service requests within SLA, in accordance with ITIL best practices using ServiceNow
  • Perform routine administration of Windows Server and/or Linux systems, including account provisioning, group policy, and file/print services
  • Support Active Directory administration, including user and group account management, password resets, and access provisioning/deprovisioning
  • Monitor system health, capacity, and performance using enterprise monitoring tools, and escalate anomalies to senior staff
  • Apply security patches, updates, and hotfixes in accordance with the customer’s maintenance and change management schedules
  • Assist with imaging, deployment, and configuration of desktops, laptops, and virtual machines, including onboarding/offboarding support
  • Collaborate with senior systems administrators and engineers on infrastructure projects, upgrades, and change implementations

Requirements

  • High school diploma required; associate’s or bachelor’s degree in information technology, Computer Science, or a related field preferred
  • 3-5 years of experience in systems administration, help desk, or desktop support, ideally within a multi-site environment
  • CompTIA A+, Network+, or Server+ certification preferred; Microsoft Certified: Windows Server Administration Associate or similar credential a plus
  • Working knowledge of Windows Server administration (Active Directory, DNS, DHCP, Group Policy)
  • Exposure to Linux server administration and virtualization platforms (e.g., VMware, Hyper-V) a plus
  • Familiarity with cloud environments (e.g., Microsoft Azure, AWS) and enterprise backup solutions (e.g., Veeam)
  • Basic understanding of networking concepts (TCP/IP, DNS, VPN) and patch/endpoint management tools (e.g., SCCM, Intune, SolarWinds)
  • Well versed in ITIL concepts and experience using ticketing systems such as ServiceNow for incident, request, and change management
  • Self-starting attitude with strong troubleshooting, documentation, and communication skills, and a willingness to take on increasing levels of responsibility
  • Must be willing to work 3 days onsite at O’Hare International Airport and 2 days remote
  • Must be willing to work occasionally after hours/on call
  • Must be willing to submit to Airport Security Screening

Other Duties
Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties, or responsibilities that are required of the employee for this job. Duties, responsibilities, and activities may change at any time with or without notice.

Equal Opportunity Employer Statement

SDI Presence is an equal opportunity employer that is committed to diversity and inclusion in the workplace. We prohibit discrimination and harassment of any kind based on race, color, sex, religion, sexual orientation, national origin, disability, genetic information, pregnancy, or any other protected characteristic as outlined by federal, state, or local laws. 

This policy applies to all employment practices within our organization, including hiring, recruiting, promotion, termination, layoff, recall, leave of absence, compensation, benefits, training, and apprenticeship. SDI Presence makes hiring decisions based solely on qualifications, merit, and business needs at the time.

Staffing Firms 
SDI Presence does not seek or accept unsolicited resumes or CVs from recruitment agencies. We are not responsible for, and will not pay, any fees, commissions, or any other payment related to unsolicited resumes or CVs except as required in a written contract between SDI Presence and the recruitment agency or party requesting payment of a fee.