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Security Software Developer Jobs in Illinois (NOW HIRING)

Seneca Holdings

Work in a software development life cycle, apply security and vulnerability best practices, and ... Any developer or build machine should be able to run scripts from a given database version / state ...

Seneca Holdings

Work in a software development life cycle, apply security and vulnerability best practices, and ... Any developer or build machine should be able to run scripts from a given database version / state ...

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Crash Champions

Software Developer (Fullstack)

Westmont, IL · On-site

$120K - $145K/yr

Work on a software team with other developers to create new modules and feature-functionality for ... Security Best Practices This is intended to describe the general nature and level of work being ...

Ulta Beauty

Sr. Software Developer

Bolingbrook, IL · On-site

$153K - $154K/yr

LOCATION: 1000 Remington Blvd., Suite 120, Bolingbrook, IL 60440 TITLE: Sr. Software Developer ... Experience in data centric security architecture concepts and open standards; Hybrid Cloud-based ...

Ulta Beauty, Inc.

Sr. Software Developer

Bolingbrook, IL · On-site +1

$153K - $154K/yr

LOCATION: 1000 Remington Blvd., Suite 120, Bolingbrook, IL 60440 TITLE: Sr. Software Developer ... Experience in data centric security architecture concepts and open standards; Hybrid Cloud-based ...

Ulta Beauty, Inc.

Sr. Software Developer

Bolingbrook, IL · On-site +1

$153K - $154K/yr

LOCATION: 1000 Remington Blvd., Suite 120, Bolingbrook, IL 60440 TITLE: Sr. Software Developer ... Experience in data centric security architecture concepts and open standards; Hybrid Cloud-based ...

Technical Link

Software Contract

Danville, IL · On-site

MsoNormal">Partner with other Teradyne security engineers to continuously improve product security ... MsoNormal">Support high-quality software releases for customer delivery. * MsoNormal">Drive ...

Maximus

AI/ML Software Developer

Springfield, IL · Remote

This position is remote and requires a Secret security clearance. Maximus TCS (Technology and ... Integrates AI/ML capabilities into software applications and system architectures using APIs and ...

Maximus

AI/ML Software Developer

Aurora, IL · Remote

This position is remote and requires a Secret security clearance. Maximus TCS (Technology and ... Integrates AI/ML capabilities into software applications and system architectures using APIs and ...

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All JobsSecurity Software Developer JobsSecurity Software Developer Jobs in Illinois

Security Software Developer information

See Illinois salary details

$46.5K

$108.4K

$160.9K

How much do security software developer jobs pay per year?

As of Jul 5, 2026, the average yearly pay for security software developer in Illinois is $108,381.00, according to ZipRecruiter salary data. Most workers in this role earn between $87,200.00 and $126,000.00 per year, depending on experience, location, and employer.

Can you make $500,000 a year in cyber security?

Security software developers and cybersecurity professionals can potentially earn $500,000 or more annually, especially with senior roles, specialized skills, certifications, and experience in high-demand areas like threat intelligence or security architecture. Achieving this level often requires advanced expertise, leadership responsibilities, or working in high-paying industries or consulting roles.

What does a security software developer do?

A security software developer designs, develops, and maintains software solutions to protect computer systems and networks from cyber threats. They analyze security vulnerabilities, implement security protocols, and often use programming languages like C++, Java, or Python, along with security tools and frameworks, to ensure data integrity and confidentiality.

What are some common challenges Security Software Developers face when integrating security features into existing applications?

Security Software Developers often encounter challenges such as legacy code compatibility, balancing security enhancements with application performance, and ensuring new security features don't disrupt user experience. Collaborating closely with other developers and IT teams is essential to address these issues efficiently. Additionally, keeping up-to-date with evolving security threats and best practices is crucial, as solutions may need frequent updates or adjustments.

What is the difference between Security Software Developer vs Network Security Engineer?

AspectSecurity Software DeveloperNetwork Security Engineer
CredentialsBachelor's in Computer Science, cybersecurity certifications (e.g., CISSP, CEH)Bachelor's in Computer Science, cybersecurity certifications (e.g., CISSP, CEH)
Work EnvironmentDevelops security software, applications, and tools in software development teamsDesigns and implements network security measures, monitors network traffic
Industry UsageUsed across software companies, tech firms, and cybersecurity firmsCommon in IT departments, telecom, and enterprise organizations

Security Software Developers focus on creating security applications and tools, while Network Security Engineers primarily protect network infrastructure. Both roles require similar certifications and often collaborate to ensure comprehensive security solutions within organizations.

What are Security Software Developers?

Security Software Developers are professionals who design, develop, and implement software solutions specifically aimed at protecting computer systems and networks from cyber threats. They build security features, such as encryption, authentication, and intrusion detection, into applications and systems to ensure data confidentiality, integrity, and availability. Their work often involves identifying vulnerabilities, addressing security flaws, and staying updated on the latest cybersecurity threats and techniques. Security Software Developers collaborate with other IT teams to integrate robust security measures throughout the software development lifecycle.

What engineer makes $500,000 a year?

Senior security software developers with extensive experience, specialized skills, and certifications such as CISSP or CISA can earn salaries approaching or exceeding $500,000 annually, especially in high-demand industries or senior leadership roles. Compensation often includes bonuses, stock options, and other incentives, particularly in large tech companies or cybersecurity firms.

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

To thrive as a Security Software Developer, you need strong programming skills (such as C/C++, Python, or Java), a solid understanding of cybersecurity principles, and often a degree in computer science or related fields. Familiarity with security frameworks, penetration testing tools, secure coding standards, and certifications like CISSP or CEH are commonly required. Analytical thinking, problem-solving, and attention to detail are essential soft skills that help in identifying and mitigating vulnerabilities. These skills and qualities are crucial for building robust, secure software that protects organizations from evolving cyber threats.

Can you make $200,000 in cyber security?

Security software developers and cybersecurity professionals can earn $200,000 or more annually, especially with extensive experience, advanced certifications, and roles in high-demand industries or senior positions. Salaries vary based on location, expertise, and the complexity of the work, with some senior roles and specialized skills commanding higher compensation.
What are popular job titles related to Security Software Developer jobs in Illinois? For Security Software Developer jobs in Illinois, the most frequently searched job titles are:
What job categories do people searching Security Software Developer jobs in Illinois look for? The top searched job categories for Security Software Developer jobs in Illinois are:
What cities in Illinois are hiring for Security Software Developer jobs? Cities in Illinois with the most Security Software Developer job openings:
Security Software Developer jobs near you
Infographic showing various Security Software Developer job openings in Illinois as of June 2026, with employment types broken down into 94% Full Time, and 6% Contract. Highlights an 94% In-person, and 6% Hybrid job distribution, with an average salary of $108,381 per year, or $52.1 per hour.

Intermediate Software Developer

Seneca Holdings

Rock Island, IL • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 3 days ago

Job description

Western Door Federal is part of the Seneca Nation Group (SNG) portfolio of companies. SNG is Seneca Holdings' federal government contracting business that meets mission-critical needs of federal civilian, defense, and intelligence community customers. Our portfolio comprises multiple subsidiaries that participate in the Small Business Administration 8(a) program. To learn more about SNG, visit the website and follow us on LinkedIn.
Our team of talented individuals is what makes us successful. To support our team, we provide a balanced mix of benefits and programs. Your total rewards package includes competitive pay, benefits, and perks, flexible work-life balance, professional development opportunities, and performance and recognition programs. We offer a comprehensive benefits package that includes medical, dental, vision, life, and disability, voluntary benefit programs (critical illness, hospital, and accident), health savings and flexible spending accounts, and retirement 401K plan. One of our fundamental principles is to offer competitive health and welfare benefits to our team members, providing coverage and care for you and your family. Full-time employees working at least 30 hours a week on a regular basis are eligible to participate in our benefits and paid leave programs. We pride ourselves on our collaborative work environment and culture, which embraces our mission of providing financial and non-financial benefits back to the members of the Seneca Nation.
This position is to provide the Knowledge and Data Management Branch (KDM) of DEVCOM Chemical Biological Center located at Rock Island Arsenal, IL. KDM develops and maintains information systems for several government customers. The majority of the KDM mission supports the Joint Executive Program Office for Chemical, Biological, Radiological, and Nuclear Defense (JPEO-CBRND). This mission directly supports the acquisition programs for CBRN Equipment (CBRNE) for the Warfighter. KDM requires contractor support using non-personal services contracts to execute their mission of developing accredited information systems.
Western Door Federal is seeking a Software Developer - Intermediate at the Rock Island Arsenal, in Rock Island, IL. The objective of this work is to provide on-site support and be responsible for the day-to-day performance of the work/contract.
Responsibilities include, but are not limited to:
  • Responsible for full-stack software development to include back-end database script artifacts (tables, indexes, functions, stored procedures, etc.), middle tier software code that moves data from databases, applies any business rules and responds to client requests, and client software that covers a wide range of user / data consumer interactions.
  • Work under general technical direction, to develop, modify moderately to highly complex web-based applications.
  • Design, code, test, debug, document, and maintain full stack web-applications.
  • Work in a software development life cycle, apply security and vulnerability best practices, and require little or no instruction and guidance in performing routine tasks.
  • Collaborate with other members of the DEVCOM CBC software development team, understand and implement change requests, have superb interpersonal and communication skills.
  • Participate in team meetings with the government to improve understanding of the mission, tools, concepts, frameworks, and increase effectiveness in delivering software code.
  • Develop and deliver C# and Microsoft .NET Software Code for DEVCOM CBC KDM. Includes proficiency with old and new Microsoft .NET Frameworks (.NET Framework, .NET Core, etc) There is legacy code that needs to be maintained. Some of the legacy code may need to be refactored, which may include re-writing to use newer framework versions.
  • Work proficiently in the latest in library code for Microsoft .NET and demonstrate the ability to effectively apply Microsoft and other 3rd party library code written for .NET to delivered software code solutions.
  • Develop and deliver Web Based Client Software Code for DEVCOM CBC KDM using HTML, JavaScript, CSS, and associated frameworks such as Bootstrap, jQuery, etc.
  • Develop and deliver SQL Database Scripts for DEVCOM CBC KDM; includes developing SQL database scripts to create, remove, update database objects such as tables, indexes, stored procedures, user functions, etc. Scripts not only must account for changing the schema, but also transforming any data because of a schema change. Scripts must be written with database version control in mind. The IS solutions exist in several environments such as developer, test, staging and production on one or more devices. Therefore, the database in these environments may exist in various versions or states. Any developer or build machine should be able to run scripts from a given database version / state up to the latest.
  • Review code based on the code review standards below "PRIOR" to request a code review. Regular, recurring, and continuous re-work within the AQL levels are cause for concern. Includes writing any applicable unit testing software code. Code review consists of software code that:
    • Contains no errors or warnings using code analysis tools in use by the government.
    • Passes builds and executes as intended.
    • No style analysis errors or warnings.
    • Passes all unit tests.
    • Adheres to refactoring best practices. The government shall provide instruction, documentation, or publications. The standards are industry best practices for refactoring code and using published design patterns.
  • Create, update, and deliver application documentation for DEVCOM CBC KDM. Application documentation includes any artifacts such as narratives, diagrams, flow charts, UML diagrams, etc that further describe design patterns, refactoring, of software code beyond comments, and inline documentation markup in the software code. All documentation will be evaluated for adherence to proper formatting, completeness, accuracy and ease of understanding.
  • Other examples include, but are not limited to:
    • Application configuration guide
    • User guide/documentation
    • IA documentation
  • Develop application documentation using GFP and government furnished software, stored and worked on government resources.

Basic Qualifications:
  • Active Secret Clearance
  • DoD 8570.01-M IAT Level I Certification
  • Apply skills at a complexity level and velocity equivalent to three (3) years of paid experience in developing full stack web-based applications.
  • Have effective technical, communication, skills, and experience to recommend design solutions and improvements that enhance the software cost, schedule, performance.
  • Proficient with C# and Microsoft .NET Software Code for DEVCOM CBC KDM. Includes proficiency with old and new Microsoft .NET Frameworks (.NET Framework, .NET Core, etc)
  • Proficient in the latest in library code for Microsoft .NET and demonstrate the ability to effectively apply Microsoft and other 3rd party library code written for .NET to delivered software code solutions.
  • Proficient with developing web-based client software using HTML, JavaScript, CSS, and associated frameworks such as Bootstrap, jQuery, etc.
  • Proficient with delivering SQL Database Scripts; includes developing SQL database scripts to create, remove, update database objects such as tables, indexes, stored procedures, user functions, etc. versions or states.
  • Excellent attention to detail.
  • Excellent written and oral communication skills.

Desired Qualifications:
  • Bachelor's Degree, or higher, in Computer Science, Information Systems, Information Technology, or a similar program.

Salary at Seneca is based on a variety of factors including but not limited to location, experience, skill set, performance, licensure and certification, as well as contract-specific affordability and organizational requirements. The range of this position in other geographic locations may differ. The projected compensation range for this position is below. The estimate displayed represents the typical salary range for this position and is just one component of our total compensation package for employees.
The projected compensation range for this position is:
$98,000-$117,000 USD
Equal Opportunity Statement:
Seneca Holdings provides equal employment opportunities to all employees and applicants without regard to race, color, religion, sex/gender, sexual orientation, national origin, age, disability, marital status, genetic information and/or predisposing genetic characteristics, victim of domestic violence status, veteran status, or other protected class status. This policy applies to all terms and conditions of employment, including, but not limited to, hiring, placement, promotion, termination, layoff, recall, transfer, leave of absence, compensation and training. The Company also prohibits retaliation against any employee who exercises his or her rights under applicable anti-discrimination laws. Notwithstanding the foregoing, the Company does give hiring preference to Seneca or Native individuals. Veterans with expertise in these areas are highly encouraged to apply.

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