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Senior Web Developer Jobs in DeKalb, IL (NOW HIRING)

QT9 SOFTWARE INC

.NET Developer - QMS

Aurora, IL

$70K - $105K/yr

NET applications using C#, ASP.NET MVC/Web Forms, Web API, and SQL Server * Collaborate with project managers and senior developers to understand project requirements and priorities * Write clean ...

QT9 Software, Inc.

.NET Developer - QMS

Aurora, IL · On-site

$70K - $105K/yr

NET applications using C#, ASP.NET MVC/Web Forms, Web API, and SQL Server * Collaborate with project managers and senior developers to understand project requirements and priorities * Write clean ...

QT9 Software

.NET Developer - QMS

Aurora, IL · On-site

$70K - $105K/yr

NET applications using C#, ASP.NET MVC/Web Forms, Web API, and SQL Server * Collaborate with project managers and senior developers to understand project requirements and priorities * Write clean ...

QT9 Software, Inc.

.NET Developer - QMS

Aurora, IL

$70K - $105K/yr

NET applications using C#, ASP.NET MVC/Web Forms, Web API, and SQL Server * Collaborate with project managers and senior developers to understand project requirements and priorities * Write clean ...

suncast

Sr. RPG Developer

Batavia, IL · On-site

$115K - $130K/yr

The Senior RPG Developer handles assigned requests by analyzing needs, gathering requirements, and ... Participate in projects to integrate RPG applications with other systems (e.g., web services, APIs ...

suncast

Sr. RPG Developer

Batavia, IL · On-site

$115K - $130K/yr

The Senior RPG Developer handles assigned requests by analyzing needs, gathering requirements, and ... Participate in projects to integrate RPG applications with other systems (e.g., web services, APIs ...

Suncast

Sr. RPG Developer

Batavia, IL · On-site

$115K - $130K/yr

The Senior RPG Developer handles assigned requests by analyzing needs, gathering requirements, and ... Participate in projects to integrate RPG applications with other systems (e.g., web services, APIs ...

PCI Pharma Services

Packaging Engineer

Rockford, IL · On-site

Creates and modifies packaging structural drawings and web layouts using various CAD platforms ... Provides direct support to Sr. Designers and Project Leads during project planning and execution.

PCI Pharma Services

Packaging Engineer

Rockford, IL · On-site

Creates and modifies packaging structural drawings and web layouts using various CAD platforms ... Provides direct support to Sr. Designers and Project Leads during project planning and execution.

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All JobsWeb Developer JobsSenior Web Developer JobsSenior Web Developer Jobs in DeKalb, IL

Senior Web Developer information

See DeKalb, IL salary details

$59.4K

$112.4K

$175.7K

How much do senior web developer jobs pay per year?

As of Jul 30, 2026, the average yearly pay for senior web developer in DeKalb, IL is $112,437.00, according to ZipRecruiter salary data. Most workers in this role earn between $89,300.00 and $129,100.00 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.

What are Senior Web Developers?

Senior Web Developers are experienced professionals responsible for designing, building, and maintaining complex websites and web applications. They lead development projects, mentor junior developers, and collaborate with cross-functional teams to deliver high-quality digital solutions. Senior Web Developers are proficient in multiple programming languages, frameworks, and best practices, ensuring the scalability, security, and performance of web platforms.

Are web developers still in high demand?

Web developers, including senior roles, continue to be in high demand due to ongoing digital transformation and the need for businesses to maintain and improve their online presence. Skills in front-end and back-end development, along with knowledge of frameworks and programming languages, are especially valuable in the current job market.

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 earn additional compensation through bonuses or benefits.

Is AI replacing web devs?

AI tools are increasingly used to assist web developers by automating repetitive tasks, generating code snippets, and improving efficiency. However, the role of a senior web developer involves complex problem-solving, design, and customization that AI cannot fully replace, making human expertise essential in the development process.

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.

Is 50 too old to become a web developer?

Senior web developers can successfully start or transition into the role at age 50 or older, as the profession values skills, experience, and continuous learning. Many employers recognize the value of diverse backgrounds and lifelong learning, and acquiring relevant skills through coding bootcamps, online courses, or certifications can facilitate entry regardless of age.

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
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Senior Web Developer jobs near you

.NET Developer - QMS

QT9 SOFTWARE INC

Aurora, IL

$70K - $105K/yr

Other

Posted 23 days ago

Job description

Description

About the Company

 QT9 Software builds the quality and operations platform purpose-built for regulated manufacturers. Our QMS is trusted by 1,200+ companies across medical devices, pharmaceuticals, aerospace, food & beverage, and other regulated industries to manage compliance, documentation, and audit readiness. Our ERP brings those same companies a fully integrated operations platform - inventory, production, purchasing, and traceability - built to work natively with the quality system, not alongside it as an afterthought.


We are the only platform that gives a regulated manufacturer a complete, pre-validated quality and operations solution without the enterprise price tag or the 18-month implementation. Our customers don't just use us - they rely on us when the auditor walks in the door.


Advantages of working at QT9 Software

  • Strong culture where people are our most valuable asset.
  • Prime location near Chicago Premium Outlets.
  • Modern industrial warehouse built in 2019 with 24 ft. ceilings.
  • Cool amenities from Golf Simulator, Sport Court and Arcade games.
  • Growing team with a small company feel.
  • Provide you with the support you need to succeed in your role.
  • Competitive compensation package with great benefits.


Job Description

QT9 Software is seeking an experienced .NET Developer for our QMS team. In this role, you will design, develop, and maintain complex .NET applications. Working closely with project managers and senior developers, you will deliver high-quality software solutions that meet business requirements.


To be considered, candidates must have .NET experience and a strong background in C#, ASP.NET MVC/Web Forms, Web API, and SQL Server. This position is full-time and onsite in Aurora, IL. We will be relocating to Batavia, IL early 2027.


Job Responsibilities 

  • Design, develop, and maintain .NET applications using C#, ASP.NET MVC/Web Forms, Web API, and SQL Server
  • Collaborate with project managers and senior developers to understand project requirements and priorities
  • Write clean, maintainable code following best practices and coding standards
  • Perform unit testing and debugging to ensure software quality and reliability

Requirements

  • Bachelor's degree in computer science, Engineering, or related field.
  • 1+ years of professional development experience.
  • Proficiency in C#, ASP.NET MVC/WEB FORMS, and SQL Server.
  • Strong understanding of object-oriented programming principles.
  • Excellent problem-solving and analytical skills.
  • Ability to work effectively in a fast-paced environment.


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