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Software Development Jobs in Belleville, IL (NOW HIRING)

The Timberline Group

Senior Software Engineer

Saint Louis, MO · On-site +1

$119K - $157K/yr

If you also have hands-on experience with backend software development, we would like to meet you. Your goal will be to develop high-quality software that is aligned with user needs and business ...

JS Consulting

R&D Engineer II-Software

Bridgeton, MO · On-site

$92K - $126K/yr

Job Title- R&D Engineer II-Software Project Location - Hybrid in Bridgeton, MO Duration- Fulltime Visa- USC Benefits: PTO, Holiday Pay, Healthcare, Profit-Sharing, Tuition Reimbursement, Parental ...

Armaninollp

Senior Software Engineer

Saint Louis, MO · On-site

$119K - $157K/yr

The ideal candidate brings extensive software development experience, strong technical depth, and a passion for mentoring and elevating other engineers. Our team solves real business problems using ...

Biomerieux

VP, Software Engineering

Hazelwood, MO · On-site

$250K - $335K/yr

This role leads Software Development teams, partners across the enterprise to align technology and business priorities, and fosters a culture of accountability, innovation and operational excellence.

bioMerieux

VP, Software Engineering

Hazelwood, MO · On-site +1

$250K - $335K/yr

This role leads Software Development teams, partners across the enterprise to align technology and business priorities, and fosters a culture of accountability, innovation and operational excellence.

BioFire Diagnostics

VP, Software Engineering

Hazelwood, MO · On-site +1

$250K - $335K/yr

This role leads Software Development teams, partners across the enterprise to align technology and business priorities, and fosters a culture of accountability, innovation and operational excellence.

Amyx, Inc.

Software Engineering Lead

O Fallon, IL

Coordinates software development support and testing activities. * Assists with tool configuration and reporting * Software development support: configure/operate/maintain program support tools ...

Amyx, Inc.

Software Engineering Lead

O Fallon, IL · On-site +1

Coordinates software development support and testing activities. * Assists with tool configuration and reporting * Software development support: configure/operate/maintain program support tools ...

MarketVolt

Software Developer

Saint Louis, MO

The ideal candidate will have a solid educational background and ideally 2+ years of post-college software development experience building robust, scalable, web-based software solutions. This ...

Marketvolt

Software Developer

Saint Louis, MO · On-site

The ideal candidate will have a solid educational background and ideally 2+ years of post-college software development experience building robust, scalable, web-based software solutions. This ...

bioMérieux

VP, Software Engineering

Hazelwood, MO · On-site

$250K - $335K/yr

This role leads Software Development teams, partners across the enterprise to align technology and business priorities, and fosters a culture of accountability, innovation and operational excellence.

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All JobsSoftware Development JobsSoftware Development Jobs in Belleville, IL

Software Development information

See Belleville, IL salary details

$77.2K

$138K

$173.4K

How much do software development jobs pay per year?

As of Jul 15, 2026, the average yearly pay for software development in Belleville, IL is $138,024.00, according to ZipRecruiter salary data. Most workers in this role earn between $120,000.00 and $158,300.00 per year, depending on experience, location, and employer.

What is software development?

Software development is the process of designing, creating, testing, and maintaining computer programs or applications. It involves a range of tasks including writing code, debugging, and collaborating with other team members to solve problems and deliver functional software solutions. Software development can encompass everything from mobile apps and websites to large-scale enterprise systems. Developers use various programming languages and tools depending on the project requirements.

What are some common challenges software developers face when working on collaborative projects, and how can these be addressed?

Software developers often encounter challenges such as coordinating code changes, managing merge conflicts, and ensuring consistent communication across the team during collaborative projects. To address these issues, teams typically use version control systems like Git, establish clear coding standards, and hold regular stand-up meetings to keep everyone aligned. Additionally, utilizing code review processes and project management tools helps maintain quality and transparency, making collaboration smoother and more efficient.

What is the difference between Software Development vs Software Engineering?

AspectSoftware DevelopmentSoftware Engineering
CredentialsTypically requires a degree in computer science or related field, coding certificationsSimilar credentials, often includes certifications in software engineering principles
Work EnvironmentDeveloping, coding, and testing software applicationsDesigning, analyzing, and managing software projects and systems
Industry UsageCommonly used in tech companies, startups, and software firmsUsed in larger organizations, focusing on system architecture and process
Search & Comparison IntentFocuses on coding and application creationEmphasizes system design and engineering principles

While both roles involve software creation, Software Development primarily focuses on coding and building applications, whereas Software Engineering encompasses designing, analyzing, and managing complex software systems with a broader engineering perspective.

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

To thrive as a Software Developer, you need strong programming skills (such as Python, Java, or C++), problem-solving abilities, and typically a degree in computer science or a related field. Familiarity with version control systems like Git, integrated development environments (IDEs), and sometimes certifications in cloud platforms or specific frameworks are often required. Collaboration, adaptability, and effective communication are essential soft skills for working in diverse development teams and navigating project requirements. These skills and qualities ensure efficient code development, seamless teamwork, and successful delivery of robust software solutions.
What are the most commonly searched types of Software Development jobs in Belleville, IL? The most popular types of Software Development jobs in Belleville, IL are:
What are popular job titles related to Software Development jobs in Belleville, IL? For Software Development jobs in Belleville, IL, the most frequently searched job titles are:
What job categories do people searching Software Development jobs in Belleville, IL look for? The top searched job categories for Software Development jobs in Belleville, IL are:
What cities near Belleville, IL are hiring for Software Development jobs? Cities near Belleville, IL with the most Software Development job openings:
Software Development jobs near you
Software Engineer

Software Engineer

Reinventing Geospatial, Inc. (RGi)

Saint Louis, MO • On-site

$115K - $170K/yr

Full-time

Posted 19 days ago

Job description

Reinventing Geospatial (RGi) is a leading expert in geospatial solutions for Defense, Intelligence, and Federal clients. We enhance situational awareness for soldiers and analysts by integrating software development with geospatial intelligence. Our projects range from data collection to advanced deep learning, leveraging tools like Python, Java, and ArcGIS.
 
We don't just fill roles we build teams of high performers and leaders who make an immediate impact. At our core, we're driven by innovation and powered by people who work at the intersection of passion and performance. Here, you'll collaborate with bold thinkers, leverage cutting edge technology, and tackle meaningful challenges from day one.
 
Our culture is defined and anchored by three pillars:
 
Energy: We bring passion, purpose, and urgency to our work.
Edge: We take initiative, embrace growth, and step outside our comfort zone.
Execution: We get things done smartly, decisively, and with real results.
 
If you're the kind of person who leads with initiative, thrives in a fast-paced environment, and is eager to create real impact, we want you on our team.
 
Clearance:
Active Top Secret clearance with an ability to obtain SCI access and willingness to obtain CI Polygraph
US Citizenship Required 
 
*This job posting is for a potential upcoming opening, and we encourage interested candidates to apply for future consideration.
As a Software Engineer, you will...
  • Contribute to the design, development, testing and integration of new capabilities from an idea to production across a complex system 
  • Integrate capabilities from different systems across the enterprise while the needs of users and stakeholders are met 
  • Participate in daily standups, sprint and release planning activities, and coordinate with other team members (systems engineer, systems administrator, tester, etc.) to accomplish the tasks outlined in user stories 
  • Write or contribute to documentation and end-user instructions/manuals, as necessary 
Software Engineer Qualifications...
  • Associate’s or Bachelor’s Degree in Computer Science or related field  
  • 5+ years of experience in software development with experience in all phases of the software development lifecycle (analysis, design, development, testing, deployment, maintenance) 
  • Demonstrated experience developing with modern languages such as: Python, Ruby, Clojure, Java, JavaScript, etc.
  • Experience designing, developing, documenting, testing, and debugging software that contains logical and mathematical solutions to problems
  • Demonstrated experience using rapid prototyping and Agile based software development methodologies
  • GEOINT/SIGINT/IMINT domain knowledge
Additional Skills We'd Like to See:
  • Understanding of machine learning concepts
  • Experience with development in microservice based architectures
  • Understanding of web application development concepts and experience using web frameworks
  • Experience with container technologies and orchestration such as Docker, Docker Compose, Kubernetes, etc.
  • Experience with continuous integration and software CM processes / tools (Git, GitLab, GitLab CI, Jenkins, JIRA, Confluence)
  • AWS experience and/or AWS certification (Developer, DevOps and/or, Architect, etc.)
  • Security+ Certification
  • Highly preferred to have Python programming language experience
Salary Range: $115,000 - $170,000
Salary is commensurate with experience.
Who we are:
Reinventing Geospatial, Inc. (RGi) is a fast-paced small business that has the environment and culture of a start-up, with the stability and benefits of a well-established firm. We solve complex problems within geospatial software development and national defense to make an Immediate Impact for our nation’s soldiers and analysts.

We pride ourselves on giving employees an exceptional life experience, where creativity thrives, and challenges are simply part of the fun. We provide truly excellent benefits, including:

·        100% paid employee healthcare & dental insurance
·        Paid parental leave
·        401k with matching
·        Escalating vacation time
·        Referral bonuses
·        Tuition reimbursement
·        Professional development training
·        Free beverages and snacks
·        Weekly catered lunches and breakfast on Fridays
 
Grow to be our next leader:
At RGi, fostering a strong and organic corporate culture is paramount and serves as a compass on the decisions we make and how we operate the company. We believe our culture of camaraderie, innovation, and collaboration reflects the caliber of our employees and their dedication to the mission of providing quality software to our customers. As such, we want our employees to feel empowered to seek growth and leadership opportunities within the company and position us to maintain our culture as we grow. RGi provides opportunities, resources, training, and mentorship to all our employees to let them take control of their careers and become a leader or a crucial member of our company. If this is what you are looking for in a company, then you are what we are looking for in an employee.

Reinventing Geospatial, Inc. is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, sex, national origin, age, veteran status, disability, or any other protected class. U.S. Citizenship is required for all positions.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.