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Front End Software Engineer Jobs in O Fallon, IL

Omni Federal

Software Engineer

Saint Louis, MO · On-site

Job Title: Software Engineer Location: St. Louis, MO Security Clearance: Active TS/SCI (or SCI ... Experience as a full-stack developer, including Web Services, Database, and Front-End Development

BAI

Software Engineer

Saint Louis, MO · On-site +1

$75K - $95K/yr

Software Engineer Reports To: Manager, Software Engineering BAI and RMA have come together as ... Solid understanding of front-end technologies including HTML, CSS, JavaScript, and React.JS, and ...

Omni Federal

Software Engineer

Saint Louis, MO · On-site

Job Title: Software Engineer Location: St. Louis, MO Security Clearance: Active TS/SCI (or SCI ... Experience as a full stack developer to include Web Services, Database and Front-End Development

Husch Blackwell LLP

Senior Software Engineer

Saint Louis, MO · On-site +1

$114K - $151K/yr

The Senior Software Engineer designs, builds, and maintains the technical systems and application ... Partner with the Information Engineers on shared front-end concerns, providing architectural ...

Husch Blackwell Llp

Senior Software Engineer

Saint Louis, MO · On-site +1

$114K - $151K/yr

The Senior Software Engineer designs, builds, and maintains the technical systems and application ... Partner with the Information Engineers on shared front-end concerns, providing architectural ...

BAI

Advanced Software Engineer

Saint Louis, MO · On-site +1

$85K - $115K/yr

Advanced Software Engineer Chicago, IL Reports To: Director, Product Development & Operations BAI ... Solid understanding of front-end technologies including HTML, CSS, JavaScript, and React.JS, and ...

Eastman

Senior Software Engineer

Saint Louis, MO · On-site

$114K - $151K/yr

... front-end, back-end, integrations, and deployment workflows. • Take ownership of product features ... Qualifications • 5+ years of professional software engineering experience, with significant ...

Eastman

Senior Software Engineer

Saint Louis, MO

$119K - $157K/yr

... front-end, back-end, integrations, and deployment workflows. • Take ownership of product features ... Qualifications • 5+ years of professional software engineering experience, with significant ...

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All JobsFront End Software Engineer JobsFront End Software Engineer Jobs in O'Fallon, IL

Front End Software Engineer information

See O Fallon, IL salary details

$56.9K

$129.6K

$184.7K

How much do front end software engineer jobs pay per year?

As of Aug 7, 2026, the average yearly pay for front end software engineer in O'Fallon, IL is $129,597.00, according to ZipRecruiter salary data. Most workers in this role earn between $105,400.00 and $150,600.00 per year, depending on experience, location, and employer.

What is the difference between Front End Software Engineer vs Web Developer?

AspectFront End Software EngineerWeb Developer
Primary FocusBuilding and optimizing user interfaces and client-side applicationsDeveloping websites and web applications, including both front-end and back-end tasks
Skills & CertificationsHTML, CSS, JavaScript, frameworks (React, Angular), UI/UX designHTML, CSS, JavaScript, sometimes back-end languages (PHP, Python), CMS platforms
Work EnvironmentTech companies, startups, agencies focusing on user experienceWeb development agencies, freelance, corporate websites

While both roles involve web development, a Front End Software Engineer specializes in creating and optimizing the visual and interactive aspects of applications, often working with advanced frameworks. Web Developers may handle broader tasks, including back-end development, and may work on entire websites. The choice depends on whether you prefer a specialized front-end focus or a more general web development role.

What is a front end software engineer?

A front end software engineer or developer designs websites and applications, often using JavaScript and CSS, to ensure that client-side software can run them optimally. As a front end software engineer, you must evaluate system design, networking, and data compression to ensure a website or application is efficient and can handle high-volume traffic. Your focus is on web usability and a seamless user experience. Qualifications include a bachelor’s degree in information technology or computer science. Companies expect a front end software engineer to understand JavaScript, CSS, and HTML. You can gain additional employment opportunities with knowledge of C++, AJAX, and Python.

What does a front end software engineer do?

A Front End Software Engineer is responsible for designing, developing, and maintaining the user-facing parts of websites and web applications. They use technologies like HTML, CSS, and JavaScript to create interactive and visually appealing interfaces that users interact with directly. Additionally, they work closely with designers and back end developers to ensure seamless integration and optimal user experiences. Their role often involves optimizing web performance, ensuring cross-browser compatibility, and implementing responsive design for various devices.

What are the key skills and qualifications needed to thrive as a front end software engineer?

To thrive as a Front End Software Engineer, you need strong proficiency in HTML, CSS, JavaScript, and modern frameworks such as React or Angular, often supported by a relevant degree or equivalent experience. Familiarity with version control systems like Git, responsive design tools, and testing frameworks is typically required. Excellent problem-solving, attention to detail, and effective communication skills help you collaborate with designers and back-end engineers. These abilities ensure you can build user-friendly, visually appealing, and high-performing web applications that meet both technical and business requirements.

How does a front end software engineer typically collaborate with designers and back-end developers during a project?

Front End Software Engineers work closely with designers to translate UI/UX mockups into interactive, responsive web interfaces, ensuring the final product aligns with the intended user experience. They also collaborate with back-end developers to integrate APIs and data services, often participating in joint planning sessions and code reviews to align on functionality and performance requirements. Regular communication, using tools like Jira or Slack, and participation in agile ceremonies like stand-ups and sprint planning, are standard practices to keep workflows smooth and ensure alignment across teams.
More about Front End Software Engineer jobs
What cities near O'Fallon, IL are hiring for Front End Software Engineer jobs? Cities near O'Fallon, IL with the most Front End Software Engineer job openings:
Front End Software Engineer jobs near you
Infographic showing various Front End Software Engineer job openings in O'Fallon, IL as of August 2026, with employment types broken down into 90% Full Time, 5% Part Time, and 5% Contract. Highlights an 83% In-person, 3% Hybrid, and 14% Remote job distribution, with an average salary of $129,597 per year, or $62.3 per hour.

Software Engineer (Frontend)

INFT Solutions, Inc

Saint Louis, MO • On-site

Other

Posted 13 days ago

Job description

Exp: 8+ Years Must Have Skills React / Next.js GraphQL Node.js MUI Job Overview Software Engineer position on the Category Experience Frontend Team responsible for building components and queries for an e-commerce application. Responsibilities Develop frontend components using React and Next.js. Build and maintain GraphQL queries for the e-commerce application. Develop and support application functionality using Node.js. Build responsive and reusable UI components using MUI. Collaborate with the frontend team to deliver high-quality features for the Category Experience

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