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

Jobsbridge

Sr. Java Developer

Saint Louis, MO

$55.75 - $71/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 ...

Jobsbridge

Sr. Java Developer

Saint Louis, MO

$55.75 - $71/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 ...

Jobsbridge

Sr. Java Developer

Saint Louis, MO · On-site

$55.75 - $71/hr

Be it core Java, full-stack Java, Web/UI designers, Big Data or Cloud or Mobility developers/architects, we have them all. Core Java (Mandatory) Web Service [REST and SOAP] (Mandatory) Hibernate or ...

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 ...

DCS Corp

Senior Level Software Developer

Saint Louis, MO

$53 - $70/hr

We are seeking a Software Engineer to support our client's intelligence analysis products and ... Web services architecture, design, and development. Relational database design. Spatial database ...

The Timberline Group

Lead Software Developer

Saint Louis, MO · On-site +1

$112K - $141K/yr

The individual in this role is a senior member of the IT team who is able to understand the use of ... Experience with Entity Framework, Web API and RESTful services. * Experience working with SPA ...

The Timberline Group

Lead Salesforce Developer

Saint Louis, MO · On-site +1

$54 - $71.50/hr

Coaching less senior team members and providing feedback in this domain. • Proven experience with ... Advanced Lightning Web Component developer or equivalent advanced experience with another js ...

kollasoft

Java/J2EE developer Sr.

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Java J2EE Developer in St.Louis,MO Duration: 2-3 Years Contract Need GC or USC only Communication ... Expert on Java EE technologies (specifically JSP/JSF, JDBC, JPA, JAXB, JAXP, Web Services - JAX-WS ...

kollasoft

Java/J2EE developer Sr.

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Java J2EE Developer in St.Louis,MO Duration: 2-3 Years Contract Need GC or USC only Communication ... Expert on Java EE technologies (specifically JSP/JSF, JDBC, JPA, JAXB, JAXP, Web Services JAX-WS ...

Fabergent

C# Developer (Jr and Sr Roles)

Saint Louis, MO · On-site

$53 - $70/hr

Work on the latest web technologies including: Angular JS, ASP.NET MVC, Web API, Gulp, LESS ... programming Strong knowledge of web service models Strong knowledge of Javascript and JQuery ...

kollasoft

Java/J2EE developer Sr.

Saint Louis, MO · On-site

$49.50 - $64.25/hr

Java J2EE Developer in St.Louis,MO Duration: 2-3 Years Contract Need GC or USC only Communication ... Expert on Java EE technologies (specifically JSP/JSF, JDBC, JPA, JAXB, JAXP, Web Services - JAX-WS ...

Omni Federal

Senior Software Engineer

Saint Louis, MO · On-site

$119K - $157K/yr

Senior 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

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

Senior Web Developer information

See O Fallon, IL salary details

$56.4K

$106.9K

$167K

How much do senior web developer jobs pay per year?

As of Aug 10, 2026, the average yearly pay for senior web developer in O'Fallon, IL is $106,859.00, according to ZipRecruiter salary data. Most workers in this role earn between $84,900.00 and $122,700.00 per year, depending on experience, location, and employer.

What are some common challenges faced by senior web developers when leading project teams?

Senior Web Developers often encounter challenges such as balancing hands-on coding responsibilities with mentoring junior team members and ensuring project deadlines are met. They must also navigate evolving technologies and frameworks, which requires ongoing learning and adaptability. Effective communication with designers, backend developers, and project managers is essential to align technical solutions with business goals. Successfully managing these aspects leads to smoother project delivery and professional growth.

How much does a senior web developer earn?

A senior web developer's salary typically ranges from $80,000 to $130,000 annually, depending on experience, location, and industry. They often possess skills in JavaScript, HTML, CSS, and frameworks like React or Angular, and may hold certifications that enhance their earning potential.

What is a senior web developer?

A senior web developer is a highly skilled computer coding professional with fluency in languages such as HTML, JavaScript, and CSS. In this career, your responsibilities include designing, developing, and debugging the backend of software programs for websites, applications, tools, and databases. You also work with JavaScript frameworks, develop tests using testing frameworks, help build and deploy automation scripts, troubleshoot, and resolve app performance issues. As a senior web developer, you may supervise a team of developers and collaborate with user experience designers to determine what the frontend user experience and website layout will look like during the design phase. Other duties may include enforcing coding standards, reviewing the work completed by your team, managing the budget and project schedule, and communicating directly with clients.

What is the difference between Senior Web Developer vs Web Developer?

AspectSenior Web DeveloperWeb Developer
Required CredentialsBachelor's in CS or related, experience, possibly certificationsBachelor's in CS or related, entry-level or junior experience
Work EnvironmentCollaborates on complex projects, mentors juniorsDevelops websites, learns on the job, less responsibility
Employer & Industry UsageTech companies, agencies, startupsSmall businesses, startups, freelance projects
Search & Comparison IntentUnderstanding senior roles, career progressionEntry-level, learning web development

The main difference between a Senior Web Developer and a Web Developer lies in experience, responsibilities, and expertise. Senior Web Developers handle complex projects, mentor team members, and often have more advanced skills and certifications. Web Developers are typically entry-level or junior roles focused on building websites and gaining experience. Both roles are essential in the tech industry, but the senior position involves greater leadership and technical depth.

What are the key skills and qualifications needed to thrive as a senior web developer, and why are they important?

To thrive as a Senior Web Developer, you need advanced proficiency in programming languages like JavaScript, HTML, CSS, and backend frameworks, supported by a bachelor’s degree in computer science or equivalent experience. Expertise in tools such as version control (Git), CI/CD pipelines, and knowledge of modern frameworks (React, Angular, Node.js) are typically required, along with relevant certifications. Strong problem-solving ability, effective communication, and leadership skills help you collaborate across teams and mentor junior developers. These competencies ensure high-quality, scalable web solutions and support successful project delivery in dynamic development environments.
More about Senior 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 job categories do people searching Senior Web Developer jobs in O'Fallon, IL look for? The top searched job categories for Senior Web Developer jobs in O'Fallon, IL are:
What cities near O'Fallon, IL are hiring for Senior Web Developer jobs? Cities near O'Fallon, IL with the most Senior Web Developer job openings:
Senior Web Developer jobs near you
Infographic showing various Senior Web Developer job openings in O'Fallon, IL as of August 2026, with employment types broken down into 1% Internship, 84% Full Time, 8% Part Time, 1% Temporary, and 6% Contract. Highlights an 82% Physical, 4% Hybrid, and 14% Remote job distribution, with an average salary of $106,859 per year, or $51.4 per hour.

Sr. Java Developer

Jobsbridge

Saint Louis, MO

$55.75 - $71/hr

Contractor

Re-posted 21 days ago

Job description

Company Description

Hello,

Greetings from Jobsbridge!

Jobsbridge, Inc. is a fast growing Silicon Valley based I.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/architects, we have them all. 


Job Description

Core Java (Mandatory) 

Web Service [REST and SOAP] (Mandatory) 

Hibernate or JPA (Mandatory) 

Experience with Spring core (Mandatory), Spring AOP (optional). 

Experience with Spring Data , Spring Boot will be added advantage. (optional). 

Spring Security will be added advantage. (optional). 

Experience building software in a continuous integration environment like Jenkins or any other tools (Mandatory) 

JUnit/ Mockito (Mandatory) 

GIT (or SVN) and Maven mandatory. (Mandatory) 

Strong experience in any application servers like Weblogic, Tomcat (any of these). (Mandatory) 

Communication with client about technical requirements and then take the same to team and work with them. 

Skilled at object-oriented analysis and Design, Design patterns 

Database design and optimization skills 

Need to provide technical documentation for technology stack being used.


Qualifications

Core Java,REST,SOAP,Spring Boot,Spring Data


Additional Information

Only GC/Citizen, OPT,EAD,H1B

Jobsbridge Institute logo

About Jobsbridge Institute

Sourced by ZipRecruiter

Josbridge Institute is your one-stop destination for your Data, Cloud and Analytics learning needs, powered by Microsoft AI & Cloud platform. We offer a wide range of courses and programs, from foundational to advanced focusing on Data Analysis, Cloud Engg, AI-ML required for Microsoft certification. Our courses are designed to equip you with the practical skills and knowledge required for success in the field of cloud computing, AI and Data Analytics. With our experienced faculty, applied learning and comprehensive curriculum, we are committed to helping you achieve your career goals. Students seeking Internship (CPT & OPT) may apply.

Industry

Business schools and computer and management training

Company size

11 - 50 Employees

Headquarters location

Campbell, CA, US

Year founded

2022

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