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

QT9 Software

.NET Developer - QMS

Aurora, IL · On-site

$85 - $105/hr

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

PCI Pharma Services

Packaging Engineer

Rockford, IL · On-site

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

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

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

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

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

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

  • Medical

  • Dental

  • Vision

  • Retirement

  • PTO

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.

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 Aug 20, 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 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 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.

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 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.

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Cities near DeKalb, IL with the most Senior Web Developer job openings:

Senior Web Developer jobs near you

.NET Developer - QMS

QT9 Software

Aurora, IL • On-site

$85 - $105/hr

Other

Re-posted 13 days ago

Job description

Learn more about this QT9 job opportunity.

.NET Developer - Quality Management Software (QMS) Aurora, IL | Full-Time Job Description

QT9 Software is seeking an experienced.NET Developerfor 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, candidatesmust have .NET experienceand 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.

Requirements
  • Bachelor's degree in computer science, Engineering, or related field.
  • 1+ years of professional development experience.
  • Pro ficiency in C#, ASP.NET MVC/WEB FORMS, and SQL Server.
  • S trudging understanding of object-oriented programming principles.
  • E xcellent problem-solving and analytical skills.
  • A bility to work effectively in a fast-paced environment.
Responsibilities
  • D esign, develop, and maintain .NET applications using C#, ASP.NET MVC/Web Forms, Web API, and SQL Server
  • C ollaborate with project managers and senior developers to understand project requirements and priorities
  • W rite clean, maintainable code following best practices and coding standards
  • P erform unit testing and debugging to ensure software quality and reliability
Education

Bachelor’s Degree in Computer Science (BA or BS) or Related on the Job Experience

About QT9 Software

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.

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