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Web Developer Jobs in O Fallon, IL (NOW HIRING)

Marketvolt

Software Developer

Saint Louis, MO · On-site

  • Medical

  • Retirement

  • PTO

NET Software Developer / Software Engineer / Web Application Developer MarketVolt, LLC, a digital marketing software and services firm based in St. Louis, seeks a creative software developer who can ...

MarketVolt

Software Developer

Saint Louis, MO

  • Medical

  • Retirement

  • PTO

NET Software Developer / Software Engineer / Web Application Developer MarketVolt, LLC, a digital marketing software and services firm based in St. Louis, seeks a creative software developer who can ...

Apex Informatics

Java Developer

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Familiarity with web technologies (e,g,, JavaScript, HTML, CSS), data manipulation (e.g., SQL), and version control systems (e.g., GitHub) * Familiarity with DevOps practices/principles, Agile/Scrum ...

Esri

Application Developer - JavaScript

Saint Louis, MO · On-site

$83K - $141K/yr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Work with modern web application frameworks such as React, Angular, Svelte, or Vue to build ... Bachelor's degree in computer science, engineering, mathematics, GIS, or related field * Ability to ...

TestingXperts

DevOps Lead

Saint Louis, MO

$51.25 - $70.25/hr

DevOps Lead with knowledge of all latest CICD build and automation tools in .NET Stack ... Knowledge on GIT, SVN, Maven, Ant, Gradle, Jenkins, Artifactory, uDeploy,Tomcat, WebSphere, Web ...

Jobsbridge

UI Developer

Saint Louis, MO

$48.50 - $63.25/hr

T staffing and professional services company specializing in Web, Cloud & Mobility staffing solutions. Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers ...

Gallop Resources Inc

Fullstack Java Developer

Saint Louis, MO · On-site

$51 - $65.75/hr

Translates business requirements into technical details relevant to web application. * Familiarity ... Experience in design and engineering of REST/SOAP based web services. * Should have experience ...

JS Consulting

Senior Developer

Saint Louis, MO · On-site

$53 - $70/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Job Title- Senior Developer Project Location - Hybrid in Saint Louis, MO Duration- Full-time Visa ... Work on the latest web technologies including Angular (19), .Net Core, Web API and Typescript.

Weissman

.Net Developer

Saint Louis, MO · On-site

$44.25 - $58.50/hr

  • Medical

  • Dental

  • Vision

  • Life

  • Retirement

  • PTO

Net Developer LOCATION St. Louis, Missouri (Hybrid) HYBRID POLICY 70% On-Site 30% Work-from-Home ... NET Web Forms and C# or VB.NET. * 4 to 6 years of experience with HTML, JavaScript, and CSS.

William C Brown Inc

Sharepoint Developer

Saint Louis, MO · On-site

$47.75 - $62.25/hr

Our work depends on a TS/SCI cleared SharePoint Developer joining our team to support our ... At least 5 years of experience in analysis; design; hands-on development and delivery of web-based ...

The Timberline Group

Angular .Net Developer

Saint Louis, MO · On-site +1

$53.25 - $65.25/hr

This is a Mid to Senior-level full stack Software Developer position. This team is an Agile team ... The team creates and maintains public facing web and mobile applications using many modern ...

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Showing results 41-60

All JobsWeb Developer JobsWeb Developer Jobs in O'Fallon, IL

Web Developer information

See O Fallon, IL salary details

$15

$42

$67

How much do web developer jobs pay per hour?

As of Aug 16, 2026, the average hourly pay for web developer in O'Fallon, IL is $42.09, according to ZipRecruiter salary data. Most workers in this role earn between $32.31 and $50.91 per hour, depending on experience, location, and employer.

What does a web developer do?

A Web Developer is responsible for designing, coding, and maintaining websites and web applications. They work with programming languages like HTML, CSS, JavaScript, and often backend languages such as PHP, Python, or Ruby. Web Developers ensure that websites are functional, user-friendly, and responsive across different devices. They may also collaborate with designers and content creators to deliver a seamless online experience.

Is it hard to become a web developer?

Becoming a web developer requires learning programming languages such as HTML, CSS, and JavaScript, along with understanding web frameworks and tools. It typically involves self-study, coding practice, and sometimes formal education or certifications, but the difficulty varies based on prior experience and learning pace.

What are some common challenges web developers face when working on cross-functional teams?

Web developers often collaborate with designers, product managers, and backend engineers, which can present challenges in aligning priorities and communication styles. For example, translating design concepts into functional code may require negotiation and compromise, while ensuring that technical constraints are understood by non-technical team members. Regular meetings, clear documentation, and using project management tools can help facilitate smoother collaboration and address these challenges effectively.

Are web development jobs still in demand?

Web development jobs remain in high demand due to ongoing digital transformation across industries. Skills in front-end and back-end technologies, along with knowledge of frameworks and responsive design, are particularly valuable in the current job market.

What are the key skills and qualifications needed to thrive as a web developer?

To thrive as a Web Developer, you need strong proficiency in HTML, CSS, JavaScript, and familiarity with frameworks like React or Angular, usually supported by a relevant degree or coding bootcamp. Knowledge of version control systems (e.g., Git), content management systems, and sometimes certifications like AWS Certified Developer are commonly required. Attention to detail, problem-solving, and effective communication are essential soft skills for collaborating with teams and translating client requirements into functional websites. These skills and qualities are vital for delivering responsive, secure, and user-friendly web solutions that meet business needs.

What is the difference between Web Developer vs Web Designer?

AspectWeb DeveloperWeb Designer
Primary FocusBuilding and coding websites, functionality, and backend systemsDesigning website layouts, visual elements, and user experience
Skills & CertificationsHTML, CSS, JavaScript, frameworks, coding skillsGraphic design, UI/UX principles, Adobe tools
Work EnvironmentDevelopers often work in teams, coding in offices or remotelyDesigners focus on visual design, often working in creative studios or remotely
Industry UsageCommonly employed in tech, e-commerce, and digital agenciesFound in marketing, branding, and creative agencies

Web Developers focus on coding and building functional websites, while Web Designers concentrate on visual design and user experience. Both roles often collaborate but require different skill sets and tools. Understanding these differences helps employers and job seekers find the right fit for their needs.

More about Web Developer jobs

What are the most commonly searched types of Web Developer jobs in O'Fallon, IL?

The most popular types of Web Developer jobs in O'Fallon, IL are:

What are popular job titles related to Web Developer jobs in O'Fallon, IL?

For Web Developer jobs in O'Fallon, IL, the most frequently searched job titles are:

What job categories do people searching Web Developer jobs in O'Fallon, IL look for?

The top searched job categories for Web Developer jobs in O'Fallon, IL are:

What cities near O'Fallon, IL are hiring for Web Developer jobs?

Cities near O'Fallon, IL with the most Web Developer job openings:

Web Developer jobs near you
Infographic showing various Web Developer job openings in O'Fallon, IL as of August 2026, with employment types broken down into 84% Full Time, and 16% Part Time. Highlights an 68% In-person, 16% Hybrid, and 16% Remote job distribution, with an average salary of $87,542 per year, or $42.1 per hour.

Software Developer

Marketvolt

Saint Louis, MO • On-site

Full-time

Medical, Retirement, PTO

Re-posted 15 days ago

Job description

C# .NET Software Developer / Software Engineer / Web Application Developer
MarketVolt, LLC, a digital marketing software and services firm based in St. Louis, seeks a creative software developer who can thrive in a fast-paced, customer-driven environment. We're an established but small company with an aggressive growth plan. Our culture is dynamic and we are looking for candidates with an entrepreneurial attitude.
We offer competitive salary and a benefits package that includes 100% company-paid health insurance, simple IRA with company match, and paid vacation, holiday and sick time.
Our team collaborates on everything from user interface design to sales support. So, the developer who joins our team will have:
  • The mental agility to rapidly shift between different roles and perspectives - programmer, architect, customer.
  • The ability to constructively contribute to a collaborative work environment.
  • The intellectual confidence to analyze and debate ideas and designs.
  • The ability to assess and balance business drivers and customer needs.

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 individual does not shy away from challenges and enjoys working in a collaborative, fast paced, team oriented environment.
What you will be doing
- Maintaining existing web applications and services
- Designing and delivering robust, web applications and services to support our business
- Collaborating with the customer support team to resolve customer reported issues
- Assisting with infrastructure maintenance and support
- Utilizing Agile software development practices
- Iteratively and incrementally improving products and processes
What we are looking for
- Preferred BS/MS in Computer Science or related degree
- 2+ years programming experience building enterprise web solutions
- 1+ years of experience with Microsoft C#, .NET, MVC, SQL Server and agile practices
- Experience developing web based software services and custom web server controls
- Working knowledge of version control preferably with git
The technologies you'll be working with
Visual Studio 2017, C#, .NET Framework, ASP.NET MVC 3 or 4, ASP.NET, JavaScript, HTML, CSS, NHibernate, MS SQL Server, WCF, XML/XSL, SOAP/REST, JSON, AJAX, Web Services, Fluent Migrator, MongoDB, RabbitMQ, PowerMTA, Dependency Injection/Inversion of Control (Unity), NUnit, Ruby, AWS, Rackspace.
If you are a talented Software Developer / Software Engineer with a passion for problem solving, please apply today!
(Principals only, please)

Apply