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Software Development Jobs in Belleville, IL (NOW HIRING)

Esri

Software Development Engineer I

Saint Louis, MO · On-site

$75K - $129K/yr

Support and build software that follows industry-standard design patterns, development methodologies, and deployment models * Solve complex problems with application design, product development, and ...

VRProIT

Java - SDET

Saint Louis, MO

Title: Java - SDET Location: St Louis, MO Duration: 3 yrs SDET ROLE * Let me be very clear here - these are NOT traditional QA roles. I.e. Selenium-only or QTP/UFT-only guys who are QA Engineers.

VRProIT

Java - SDET

Saint Louis, MO · On-site +1

Java - SDET Location: St Louis, MO Duration: 3 yrs SDET ROLE * Let me be very clear here - these are NOT traditional QA roles. I.e. Selenium-only or QTP/UFT-only guys who are QA Engineers. Instead, I ...

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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 Development Engineer I

Software Development Engineer I

Esri

Saint Louis, MO • On-site

$75K - $129K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 22 days ago

Esri rating

9.5

Company rating: 9.5 out of 10

Based on 7 frontline employees who took The Breakroom Quiz

6th of 209 rated software companies

Job description

Overview
Are you ready to launch your career by building software that makes a real-world impact? As a developer on our team, you will build software leveraging Esri's products and APIs for customers across a wide swathe of sectors and focused on the Midwest region.
This is a unique opportunity to grow your technical skills while contributing to projects that matter. You'll work alongside engineers and mentors in a collaborative, cross-functional environment that values learning, innovation and purpose. From building intuitive AI web interfaces to writing Python for geoprocessing tools and AI agents, you'll be exposed to the full development lifecycle and cutting-edge GIS solutions.
As part of Esri's Professional Services division, you'll be at the forefront of geospatial innovation, breaking ground in new markets, pushing the boundaries of what's possible, and delivering transformational solutions to high-profile clients. With nearly 1,000 technical and business professionals, our team is committed to helping users succeed and empowering you to grow into a confident, capable developer.
Esri has a Relocation Assistance Program and can provide support with relocating to the St. Louis, MO area for this position.
Responsibilities
  • Support and build software that follows industry-standard design patterns, development methodologies, and deployment models
  • Solve complex problems with application design, product development, and user experiences
  • Collaborate with other developers, engineers and product managers throughout the development process
  • Evolve your language skills in JavaScript by staying current with complementary programming languages, development methodologies, user interface design techniques, and database tools
  • Use JavaScript and TypeScript to develop front end applications
  • Use Python to develop geoprocessing tools, services, and AI agents

Requirements
  • 1+ years of JavaScript or TypeScript experience
  • Professional experience in a similar position supporting similar responsibilities
  • Strong foundation in object-oriented software principles
  • Ability to analyze software/algorithms and identify improvements
  • An entrepreneurial awareness of how technology enables excellence within governments and organizations, you need to be interested in why we are developing software, not just how we develop software
  • Understand the importance of software development methodologies (Agile, Scrum, Waterfall, RAD, RUP) and software design techniques (UML, entity relationship diagramming, use cases, data flow diagramming); know how they impact the quality of your design process, team collaboration, and work product
  • Capability to manage multiple projects simultaneously
  • US citizenship and willingness and ability to maintain a US Security Clearance
  • Bachelor's degree in Computer Science, Mathematics, Geographic Information Systems (GIS), or STEM related field

Recommended Qualifications
  • Experience with one or more of the following technologies:
    • HTML, CSS, JavaScript, Swift, Kotlin
    • ReactJS, Vue, Svelte
    • Python generative AI, large language models, and agentic systems
    • Web AI chatbot interfaces
    • Web data visualization techniques combining AI results with 2D and 3D maps
    • GIS
    • REST Web services
    • SQL, SQL Server, PostgreSQL, Oracle, RDBMS
  • Master's degree in Computer Science, Mathematics, Geographic Information Systems (GIS), or STEM related field

#LI-AN1
#LI-Onsite
Total Rewards
Esri's competitive total rewards strategy includes industry-leading health and welfare benefits: medical, dental, vision, basic and supplemental life insurance for employees (and their families), 401(k) and profit-sharing programs, minimum accrual of 80 hours of vacation leave, twelve paid holidays throughout the calendar year, and opportunities for personal and professional growth. Base salary is one component of our total rewards strategy. Compensation decisions and the base range for this role take into account many factors including but not limited to skill sets; experience and training; licensure and certifications; and other business and organizational needs.
A reasonable estimate of the base salary range is
$75,920-$129,480 USD
The Company
At Esri, diversity is more than just a word on a map. When employees of different experiences, perspectives, backgrounds, and cultures come together, we are more innovative and ultimately a better place to work. We believe in having a diverse workforce that is unified under our mission of creating positive global change. We understand that diversity, equity, and inclusion is not a destination but an ongoing process. We are committed to the continuation of learning, growing, and changing our workplace so every employee can contribute to their life's best work. Our commitment to these principles extends to the global communities we serve by creating positive change with GIS technology. For more information on Esri's Racial Equity and Social Justice initiatives, please visit our website here.
If you don't meet all of the preferred qualifications for this position, we encourage you to still apply!
Esri is an equal opportunity employer (EOE) and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law. If you need reasonable accommodation for any part of the employment process, please email askcareers@esri.com and let us know the nature of your request and your contact information. Please note that only those inquiries concerning a request for reasonable accommodation will be responded to from this e-mail address.
Esri Privacy Esri takes our responsibility to protect your privacy seriously. We are committed to respecting your privacy by providing transparency in how we acquire and use your information, giving you control of your information and preferences, and holding ourselves to the highest national and international standards, including CCPA and GDPR compliance.

What Esri employees say

Pay

Benefits

Hours and flexibility

Workplace

Get the full story on Breakroom

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About ESRI

Sourced by ZipRecruiter

Our passion for improving quality of life through geography is at the heart of everything we do. Esri's geographic information system (GIS) technology inspires and enables governments, universities, and businesses worldwide to save money, lives, and our environment through a deeper understanding of the changing world around them.

Industry

Scientific research and development services

Company size

1,001 - 5,000 Employees

Headquarters location

Redlands, CA, US

Year founded

1969

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