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Government Software Developer Jobs in Illinois (NOW HIRING)

ECS

Senior Software Developer

O Fallon, IL · On-site

$110K - $120K/yr

As a Senior Software Developer, the selected individual will work hands-on with developer and systems administrators to integrate our solutions and products for our government customer. Key ...

Chenega Corporation

Mid Software Developer

O Fallon, IL · On-site

Join our team of professionals who support large-scale government operations by leveraging cutting ... The Backend Software Developer will modify existing GOTS code and integrate open-source software ...

Seneca Holdings

SNG is Seneca Holdings' federal government contracting business that meets mission-critical needs ... Western Door Federal is seeking a Software Developer - Intermediate at the Rock Island Arsenal, in ...

Seneca Holdings

SNG is Seneca Holdings' federal government contracting business that meets mission-critical needs ... Western Door Federal is seeking a Software Developer - Intermediate at the Rock Island Arsenal, in ...

SAIC

Web Software Developer

Scott Air Force Base, IL · On-site

$120K - $160K/yr

Software Subcategory: SW Engineer Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance ... Adhere to Government and industry web and security standards. * Complete minor adjustments ...

SAIC

Web Software Developer

Scott Air Force Base, IL

$120K - $160K/yr

Software Subcategory: SW Engineer Schedule: Full-Time Shift: Day Job Travel: No Minimum Clearance ... Adhere to Government and industry web and security standards. * Complete minor adjustments ...

SAIC

IL · On-site

$120K - $160K/yr

Description SAIC is seeking a Web Software Developer to support an IT Service Management effort for ... Adhere to Government and industry web and security standards. * Complete minor adjustments ...

Isys Technologies

IL · On-site

$99K - $105K/yr

... the Federal Government. Whether the focus is on space exploration, national security ... Software Developer to support ongoing activities for a customer at Scott AFB, IL. This position ...

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All JobsGovernment Software Developer JobsGovernment Software Developer Jobs in Illinois

Government Software Developer information

See Illinois salary details

$46.5K

$108.4K

$160.9K

How much do government software developer jobs pay per year?

As of Aug 18, 2026, the average yearly pay for government 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.

What does a government software developer do?

A Government Software Developer designs, creates, and maintains software applications specifically for government agencies. Their work often involves developing secure and reliable systems for data management, public services, or internal operations. They must adhere to strict security, privacy, and regulatory standards unique to the public sector. In addition to coding, they may also collaborate with policy makers, IT professionals, and end-users to ensure the software meets the needs of the agency and the public.

What are some unique challenges government software developers face compared to those in the private sector?

Government software developers often work within strict regulatory frameworks and security protocols, which can influence project timelines and the choice of technologies. Projects typically require thorough documentation and compliance with accessibility and data privacy standards. Collaboration with cross-functional teams—such as policy experts, procurement officers, and end-users—is common, and adapting to evolving government priorities can be both challenging and rewarding. These factors contribute to a work environment that values stability, public impact, and continuous learning.

What are the key skills and qualifications needed to thrive as a government software developer, and why are they important?

To thrive as a Government Software Developer, you need strong programming skills, knowledge of secure software development practices, and often a degree in computer science or related fields. Familiarity with languages like Java, Python, and .NET, as well as experience with government-specific systems, cloud platforms, and relevant security certifications (e.g., Security+ or CISSP) is valuable. Attention to detail, problem-solving, and a collaborative mindset are important soft skills for working on complex, mission-critical projects. These competencies ensure reliable, secure, and compliant solutions for government operations and public services.

What are popular job titles related to Government Software Developer jobs in Illinois?

For Government Software Developer jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Government Software Developer jobs in Illinois look for?

The top searched job categories for Government Software Developer jobs in Illinois are:

Government Software Developer jobs near you
Infographic showing various Government Software Developer job openings in Illinois as of August 2026, with employment types broken down into 1% As Needed, 90% Full Time, 6% Part Time, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $108,381 per year, or $52.1 per hour.

Senior Software Developer

ECS

O Fallon, IL • On-site

$110K - $120K/yr

Full-time

Posted 6 days ago

Job description

Everforth ECS is seeking a Senior Software Developer to work in our O'Fallon, IL office.
ECS Federal LLC is looking for a Senior Software Developer who possesses and applies expertise on multiple complex work assignments. The ECS Team provides development and support of GATES, a mission-critical application providing cargo and passenger manifesting and in transit visibility requirements for the DoD. We are seeking a Java Developer with experience developing Web applications to be part of the larger team. Assignments may be broad in nature, requiring originality and innovation in determining how to accomplish tasks. Operates with appreciable latitude in developing methodology and presenting solutions to problems. Contributes to deliverables and performance metrics. As a Senior Software Developer, the selected individual will work hands-on with developer and systems administrators to integrate our solutions and products for our government customer. Key responsibilities are to deliver DevSecOps pipeline solutions and proof of concepts for Continuous Integration/Configuration, Continuous Development, Continuous Delivery/Deployment, Continuous Testing, Continuous Security and Continuous Monitoring. The DevSecOps Engineer is also responsible for driving solutions that meet the customers' technical, financial and business requirements, and supporting a legacy system in the process of being modernized while being hosted in the cloud utilizing DevSecOps processes.
Salary Range: $110,000 - $120,000
General Description of Benefits
  • Bachelor's Degree
  • Java, HTML5 technologies, Angular, Spring, RHEL, SQL, Oracle RDBMS, JavaScript, XML, Agile methodologies, WebLogic, Tomcat, Gradle/Maven/Ant, Python
  • Experience with DevSecOps pipeline
  • Secret Clearance
  • Security + Certification or the ability to obtain immediately following employment.

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