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Senior Net Software Developer Jobs in Belleville, IL

ECS

Senior Software Developer

O Fallon, IL · On-site

$110K - $120K/yr

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 ...

Worky

Senior Software Developer

O Fallon, IL · On-site

$110 - $120/hr

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 ...

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The Timberline Group

Lead Software Developer

Saint Louis, MO · On-site +1

$112K - $141K/yr

... a Sr. Software Engineering role. * 6+ years of programming experience in C# .NET. * Past experience developing software as part of a team in a complex n-tier application environment comprising ...

Avani Technology Solutions, Inc.

Sr.Developer

Creve Coeur, MO · On-site

$51.50 - $65.50/hr

Net Core, C#, GO, Mongo/SQL, API, KAFKA, XUnit, GITHUB, Jenkins, JIRA, and POSTMAN Must have skill: This individual must be hands-on and strong in C#,.net framework fundamentals Excellent in ...

Eliassen Group

Senior Software Developer

Saint Louis, MO · On-site

$100 - $125/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

Louis, MO Our client seeks a Senior Software Developer to support modernization and maintenance of a mission-critical enterprise application in AWS for the U.S. Treasury. The role requires full-stack ...

DCS Corp

Senior Level Software Developer

Saint Louis, MO · On-site

$53 - $70/hr

We are seeking a Software Engineer to support unique systems solutions for the National Geospatial-Intelligence Agency (NGA). We are seeking a Software Engineer to support our client's intelligence ...

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All JobsNet Software Developer JobsSenior Net Software Developer JobsSenior Net Software Developer Jobs in Belleville, IL

Senior Net Software Developer information

See Belleville, IL salary details

$35

$58

$76

How much do senior net software developer jobs pay per hour?

As of Aug 20, 2026, the average hourly pay for senior net software developer in Belleville, IL is $58.47, according to ZipRecruiter salary data. Most workers in this role earn between $51.35 and $65.38 per hour, depending on experience, location, and employer.

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

AspectSenior Net Software DeveloperSoftware Engineer
Required CredentialsBachelor's in CS or related field, certifications like MCSD often preferredBachelor's or higher in CS or related field, certifications vary
Work EnvironmentTypically in enterprise or corporate settings, focusing on .NET technologiesVaries from startups to large companies, working on diverse projects
Industry UsageCommon in finance, healthcare, and enterprise software sectorsWidely used across tech, finance, healthcare, and more

Both roles require strong programming skills and experience with software development. Senior Net Software Developers focus specifically on .NET frameworks and enterprise applications, while Software Engineers may work across multiple platforms and technologies. The choice depends on the specific tech stack and industry focus.

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Senior Net Software Developer jobs near you
Infographic showing various Senior Net Software Developer job openings in Belleville, IL 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 $121,626 per year, or $58.5 per hour.

Senior Software Developer

ECS

O Fallon, IL • On-site

$110K - $120K/yr

Full-time

Posted 7 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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