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Senior Software Engineer Jobs in Springfield, IL

Perform complex engineering calculations and utilize software tools for analysis and design. * Collaborate with senior technical staff and multidisciplinary teams on significant national projects.

Senior Estimator

Springfield, IL · On-site +1

$150K - $180K/yr

Analyze historical data and use estimating software to calculate costs for labor, materials ... Effective communication and interaction with clients, engineers, subcontractors and suppliers

Senior Estimator

Springfield, IL · On-site +1

$150K - $180K/yr

Analyze historical data and use estimating software to calculate costs for labor, materials ... Effective communication and interaction with clients, engineers, subcontractors and suppliers

Perform engineering calculations and utilize design software to support aviation and civil site ... Collaborate with senior technical staff * Other duties as assigned What We're Looking For We feel ...

... Senior z/OS Systems Programmer to provide ongoing operational support for a large-scale mainframe environment. This is a hands-on role responsible for installing and supporting z/OS software ...

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Showing results 1-20

Senior Software Engineer information

See Springfield, IL salary details

$74.8K

$142K

$190.3K

How much do senior software engineer jobs pay per year?

As of May 29, 2026, the average yearly pay for senior software engineer in Springfield, IL is $142,017.00, according to ZipRecruiter salary data. Most workers in this role earn between $121,400.00 and $160,100.00 per year, depending on experience, location, and employer.

What Is a Senior Software Engineer?

A senior software engineer designs, codes, tests, and maintains computer software. While these are your primary responsibilities as a senior software engineer, you may also have supervisory duties. These include overseeing a team of junior software engineers or developers. The senior software engineer title is sometimes used interchangeably with senior developer, and positions for both may share similar job duties and responsibilities. In general, software engineers are distinguished from developers in that software engineers apply engineering principles to software development.

What are the key skills and qualifications needed to thrive as a Senior Software Engineer, and why are they important?

To thrive as a Senior Software Engineer, you need advanced programming skills, deep understanding of software architecture, and several years of experience in software development, often supported by a relevant degree. Familiarity with tools like Git, CI/CD pipelines, cloud platforms, and expertise in technologies such as Java, Python, or JavaScript are typically required. Leadership, problem-solving, and effective communication are crucial soft skills for mentoring teams and collaborating across departments. These skills ensure the delivery of robust, scalable solutions and drive successful project outcomes in complex technical environments.

What are some common challenges Senior Software Engineers face when mentoring junior team members?

Senior Software Engineers often mentor junior colleagues, which can be incredibly rewarding but also presents challenges. Balancing mentorship with project deadlines can be demanding, as it requires strong time management and communication skills. Additionally, adapting explanations to different learning styles and levels of experience can be tricky. However, effective mentorship helps build a stronger team and can lead to enhanced leadership opportunities for the senior engineer.

What are Senior Software Engineers?

Senior Software Engineers are experienced professionals who design, develop, and maintain complex software systems. They often lead technical projects, mentor junior team members, and make architectural decisions. Their role involves collaborating with stakeholders to understand requirements, ensuring code quality, and staying up-to-date with the latest technologies. Senior Software Engineers are expected to have strong problem-solving skills and a deep understanding of software development best practices.

What is the difference between Senior Software Engineer vs Software Developer?

AspectSenior Software EngineerSoftware Developer
CredentialsBachelor's or higher in CS or related field; experience often 5+ yearsBachelor's in CS or related field; entry to mid-level experience
Work EnvironmentDesigning complex systems, leading projects, mentoringWriting code, developing features, debugging
Industry UsageUsed across tech companies, startups, enterpriseCommon in software firms, startups, freelance work
Search & ComparisonOften compared for experience level, responsibilitiesCompared for entry-level to mid-level roles

The main difference between a Senior Software Engineer and a Software Developer lies in experience, responsibilities, and scope. Senior Software Engineers typically have more experience, lead projects, and mentor others, while Software Developers focus on coding and feature development. Both roles are essential in tech companies, but the Senior Software Engineer position involves higher-level planning and leadership.

What are the most commonly searched types of Software Engineer jobs in Springfield, IL? The most popular types of Software Engineer jobs in Springfield, IL are:
What job categories do people searching Senior Software Engineer jobs in Springfield, IL look for? The top searched job categories for Senior Software Engineer jobs in Springfield, IL are:
What cities near Springfield, IL are hiring for Senior Software Engineer jobs? Cities near Springfield, IL with the most Senior Software Engineer job openings:
Infographic showing various Senior Software Engineer job openings in Springfield, IL as of May 2026, with employment types broken down into 75% Full Time, and 25% Part Time. Highlights an 75% In-person, and 25% Remote job distribution, with an average salary of $142,017 per year, or $68.3 per hour.
Senior Public Service Administrator-Mainframe Storage Administrator

Senior Public Service Administrator-Mainframe Storage Administrator

State of Illinois

Springfield, IL

$90K - $120K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 25 days ago


State Of Illinois rating

7.8

Company rating: 7.8 out of 10

Based on 72 frontline employees who took The Breakroom Quiz

20th of 50 rated states


Job description

Job Requisition ID: 53372 
Closing Date: 05/31/2026
​Agency: Illinois Office of Comptroller
Class Title: PUBLIC SERVICE ADMINISTRATOR SR - 88469 
Salary: $90,000 - $120,000/year
Job Type: Salaried
Category: Full Time 
County: Sangamon
Number of Vacancies: 1
Merit Comp Code: IOC

***A RESUME IS REQUIRED FOR THIS JOB POSTING***

All applicants who want to be considered for this position MUST apply electronically through the illinois.jobs2web.com website. State of Illinois employees should click the link near the top left to apply through the SuccessFactors employee career portal.

Applications submitted via email or any paper manner (mail, fax, hand delivery) will not be considered.

 

 

Why Work for Illinois?

Working with the State of Illinois is a testament to the values of compassion, equity, and dedication that define our state. Whether you’re helping to improve schools, protect our natural resources, or support families in need, you’re part of something bigger—something that touches the lives of every person who calls Illinois home.

No matter what state career you’re looking for, we offer jobs that fit your life and your schedule—flexible jobs that provide the gold standard of benefits. Our employees can take advantage of various avenues to advance their careers and realize their dreams. Our top-tier benefits and great retirement packages can help you build a rewarding career and lasting future with the State of Illinois.

Position Overview

COME JOIN A TRANSFORMATIVE TEAM, with a record of proven, positive impact to the State of Illinois.

The Illinois Office of the Comptroller is seeking applicants for the position of Senior Public Service Administrator - Mainframe Storage Administrator.

The Comptroller is the chief fiscal control officer for the Illinois government, charged by the Constitution with maintaining the state’s central fiscal accounts and ordering payments into and out of the appropriate funds. The office processes more than 16 million transactions annually and serves as a “fiscal watchdog” to ensure that all state payments meet the requirements of the law. The Comptroller’s office provides meaningful and timely fiscal information to help state policymakers adopt effective policies. The office continually seeks new ways to improve how it serves the public. The Comptroller has updated and streamlined the Comptroller’s website and has led the process of updating the state’s payroll and accounting systems. Comptroller Mendoza is committed to running the Office of Comptroller as a financial watchdog for the interest of Illinois citizens and to installing the most modern and transparent systems to make the state’s financial information available to all. 

Major Function

Under administrative direction, the incumbent will manage and maintain our mainframe DASD (Direct Access Storage Device) and tape environments, ensuring optimal performance and availability. The incumbent will implement, configure, and maintain IBM subsystems including SMS (Storage Management Subsystem) and HSM (Hierarchical Storage Manager), as well as administer and support Computer Associates (CA) CA-1 Tape Management System. Install, configure, and support other mainframe software products as assigned, ensuring seamless integration and operation. The incumbent will plan, develop, coordinate, and rigorously maintain the Information Technology Disaster Contingency Plan, including regular testing and documentation, to ensure business continuity and data recoverability. Monitor system performance, troubleshoot issues, and implement proactive solutions to prevent outages and optimize resource utilization. The SPSA will provide technical support and guidance for all storage and disaster recovery-related incidents and requests. Collaborate with other infrastructure teams, application developers, and business stakeholders to ensure storage and disaster recovery requirements are met. The incumbent will stay current with industry’s best practices, emerging technologies, and security standards related to mainframe storage and disaster recovery. The SPSA-Mainframe Storage Administrator will assist with maintaining and developing operating system software and electronic communication, computer system administration activities including periodic on-call responsibilities and problem resolution.

Job Responsibilities
  • Plans, develops, reviews, and maintains the Information Technology Disaster Contingency Plan.
    • Develops and coordinates procedures with technical support staff for recovery operations.
    • Performs liaison duties with outside entities, recovery specialists, and state agencies to coordinate recovery procedures and requirements.
  • Plans, coordinates, implements, and maintains mainframe software tools and products.
    • Works independently with operations personnel, application programming staff, and support personnel for software implementation and modification.
  • Serves as primary software support contact for various mainframe software products.
    • Prepares comprehensive reports for management on issues related to software implementation or modification.
    • Resolves technical problems.
  • Develops schedules for system and data backups.
    • Reviews output to ensure accuracy and completeness of process.
  • Develops and writes procedures for technicians; tests procedures for data and system restoration.
  • Implements storage management policies and standards for operation and programming.
    • Provides problem resolution for technical problems and establishes problem resolution guidelines.
  • Plans and/or participates in special projects as assigned.
  • Performs other related duties as required or assigned which are reasonably within the scope of duties defined above.
Minimum Requirements
  • Requires knowledge, skill and mental development equivalent to the completion of four (4) years of college, preferably with course work in information systems, computer science, mathematics, statistics, public or business administration.
  • Requires four (4) years of progressively responsible experience in implementing storage management policies, working on SMS (Storage Management Subsystem) system, installing management software on MVS (Multiple Virtual Storage) and in disaster recovery, or any equivalent combination of training and experience.
Conditions of Employment
  • This position is performed in an office environment with long periods of sitting, repetitive hand movement, bending, twisting, and lifting (max 50 lbs.) required.
Knowledge, Skills, and Abilities
  • Requires extensive knowledge of vendor supplied software and operating systems and communication support for large computer systems.
  • Requires extensive knowledge of data processing systems including the analysis, design, and control of information.
  • Requires ability to conduct research projects and make appropriate revisions to the system.
  • Requires ability to coordinate the activities of programming and system analysis to accomplish the desired improvements in the software program.
  • Requires extensive knowledge of IBM system software.
  • Requires extensive knowledge of set up and maintenance of DFHSM (Data Facility Hierarchical Storage Manager)/SMS (Storage Management Subsystem).
  • Requires knowledge of disaster recovery concepts.
  • Requires knowledge of storage management policies.
  • Requires ability to understand office programs and service objectives, activities and operational systems.
  • Requires ability to express ideas clearly both orally and in writing.
  • Requires ability to develop and maintain satisfactory working relationships with employee’s state agency points of contact and vendor representatives.
  • Requires ability to understand laws, administrative rules, regulations, procedures and policies governing the Office of Comptroller.
  • Requires ability to participate in complex projects, including identifying and resolving problems to ensure project accuracy and timelines.
  • Requires ability to exercise judgment and discretion in developing, implementing and interpreting departmental policies and procedures.

*with or without reasonable accommodation.

Preferred Skills
  • IBM Mainframe Storage and Tape Management:
    • Deep understanding of mainframe DASD environments and performance optimization techniques.
    • Proficiency in managing and administering virtual tape systems (VTS) and physical tape libraries.
    • Experience with mainframe storage replication technologies (e.g., GDPS, XRS).
    • Strong knowledge of IBM SMS (Storage Management Subsystem) and HSM (Hierarchical Storage Manager) for automated storage tiering and data lifecycle management.
    • Experience with CA-1 Tape Management System.
  • TCP/IP Management:
    • Solid understanding of TCP/IP protocols and mainframe network configurations.
    • Experience with IBM Communications Server and related network security configurations.
    • Knowledge of network monitoring and troubleshooting tools on the mainframe.
  • z/OS Maintenance and Management:
    • Extensive experience with z/OS system programming, including PARMLIB maintenance, IPL procedures, and system customization.
    • Proficiency in using SMP/E for installing and managing software products on z/OS.
    • Strong knowledge of z/OS security concepts and tools (e.g., RACF, ACF2, Top Secret)
    • Experience with z/OS performance monitoring and tuning using tools like RMF and Omegamon.
  • Experience with COBOL, JCL, REXX, Assembler, and other relevant mainframe programming languages.
Benefits

This position is eligible to be a member of the State of Illinois Group Insurance program which includes health, dental, vision, and life insurance coverage options. Additionally, this position will annually accrue 12 paid sick days, a minimum of 12 paid vacation days, 4 paid personal days, and be afforded 14 paid state holidays, prorated based on start date. 

Equal Employment and Commitment to Diversity

The Illinois Office of Comptroller provides equal employment opportunities to all employees and applicants for employment without regard to race, color, creed, ancestry, national origin, citizenship, sex or gender, gender identity or expression, sexual orientation, marital status, religion, age, disability, genetic information, service in the military, or any other characteristic protected by applicable federal, state, or local laws and ordinances. Equal employment opportunity applies to all terms and conditions of employment, including hiring, placement, promotion, termination, layoff, recall, transfer, leave of absence, compensation, and training. The Illinois Office of Comptroller is committed to the fair and equal employment of individuals with disabilities under the ADA. It is the Illinois Office of Comptroller's policy to provide reasonable accommodation to qualified individuals with disabilities unless the accommodation would impose an undue hardship on the company. The Illinois Office of Comptroller prohibits any harassment of, or discriminatory treatment of, employees or applicants based on a disability or because an employee has requested reasonable accommodation. 

The Illinois Office of Comptroller is committed to creating and maintaining a workplace in which all employees have an opportunity to participate and contribute to the success of the agency and are valued for their skills, experience, and unique perspectives. This commitment is embodied in agency policy and organizational culture. 

Work Hours: Monday - Friday, 37.5 hours/week
Headquarter Location: 325 W Adams St, Springfield, Illinois, 62704
Work County: Sangamon
Agency Contact: Kammy Ferrigno
Email: Kammy.Ferrigno@illinoiscomptroller.gov
Phone #: 217-782-6085
Posting Group: Science, Technology, Engineering & Mathematics

APPLICATION INSTRUCTIONS

Use the “Apply” button at the top right or bottom right of this posting to begin the application process.

If you are not already signed in, you will be prompted to do so. 

State employees should sign in to the career portal for State of Illinois employees – a link is available at the top left of the Illinois.jobs2web.com homepage in the blue ribbon. 

Non-State employees should log in on the using the “View Profile” link in the top right of the Illinois.jobs2web.com homepage in the blue ribbon.  If you have never before signed in, you will be prompted to create an account.

If you have questions about how to apply, please see the following resources:

State employees: Log in to the career portal for State employees and review the Internal Candidate Application Job Aid

Non-State employees: on Illinois.jobs2web.com – click “Application Proc...


What State Of Illinois employees say

Pay

Benefits

Hours and flexibility

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Get the full story on Breakroom


State of Illinois logo

About State of Illinois

Sourced by ZipRecruiter

The State of Illinois is not a traditional company, but rather a governmental entity encompassing diverse agencies and departments that serve the constituents of Illinois. Based in Illinois, United States, this governmental body communicates with its citizens through the official website illinois.gov. The website is a one-stop resource for Illinois residents to access information about the state's services, including education, healthcare, transportation, and public safety, among others.

Company size

11 - 50 Employees

Headquarters location

Springfield, IL, US

Year founded

2009

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