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Mid Level React Developer Jobs in Naperville, IL

Ritchie Bros.

Software Engineer

Westchester, IL

Software Engineer II (Mid-Level) - .NET Backend / Microservices (Azure) + React/Vue What You'll Do (Responsibilities) * Build and maintain backend services using C# and modern .NET (.NET 6/8; moving ...

Constellation Energy

Engineer, Electrical

Morris, IL · On-site

$122K - $154K/yr

Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Primary Purpose of Position Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as ...

Constellation Energy

Engineer, Electrical

Elwood, IL · On-site

$122K - $154K/yr

Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Primary Purpose of Position Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as ...

Constellation Energy

Engineer, Electrical

Joliet, IL · On-site

$122K - $154K/yr

Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Primary Purpose of Position Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as ...

Constellation Energy

Engineer, Electrical

Elwood, IL · On-site

$92K - $114K/yr

Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Primary Purpose of Position Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as ...

Constellation Energy

Engineer, Electrical

Morris, IL · On-site

$92K - $114K/yr

Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Primary Purpose of Position Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as ...

Constellation Energy

Engineer, Electrical

Minooka, IL · On-site

$122K - $154K/yr

Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Primary Purpose of Position Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as ...

Constellation Energy

Engineer, Electrical

Minooka, IL · On-site

$122K - $154K/yr

Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Primary Purpose of Position Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as ...

Constellation Energy

Engineer, Electrical

Minooka, IL · On-site

$122K - $154K/yr

Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Primary Purpose of Position Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as ...

Constellation Energy

Engineer, Electrical

Joliet, IL · On-site

$122K - $154K/yr

Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Primary Purpose of Position Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as ...

Constellation Energy

Engineer, Electrical

Elwood, IL · On-site

$122K - $154K/yr

Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Primary Purpose of Position Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as ...

Constellation Energy

Engineer, Electrical

Minooka, IL · On-site

$92K - $114K/yr

Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Primary Purpose of Position Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as ...

Constellation Energy

Engineer, Electrical

Joliet, IL · On-site

$92K - $114K/yr

Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Primary Purpose of Position Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as ...

Constellation Energy

Engineer, Electrical

Stateville, IL · On-site

$122K - $154K/yr

Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Primary Purpose of Position Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as ...

Constellation Energy

Engineer, Electrical

Morris, IL · On-site

$122K - $154K/yr

Mid-Level - $92,700 - $114,000 Sr Level - $122,400- $154,000 Primary Purpose of Position Performs advanced technical/engineering problem solving in support of nuclear plant operations while acting as ...

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All JobsMid Level React Developer JobsMid Level React Developer Jobs in Naperville, IL

Mid Level React Developer information

See Naperville, IL salary details

$39.7K

$128.2K

$157.1K

How much do mid level react developer jobs pay per year?

As of Aug 18, 2026, the average yearly pay for mid level react developer in Naperville, IL is $128,237.00, according to ZipRecruiter salary data. Most workers in this role earn between $105,100.00 and $155,700.00 per year, depending on experience, location, and employer.

What does a mid level React developer do?

A Mid Level React Developer builds and maintains web applications using the React JavaScript library. They are responsible for developing user interfaces, optimizing application performance, and collaborating with designers and back-end developers to deliver seamless user experiences. Mid Level React Developers often write reusable components, manage application state, and ensure code quality through testing and code reviews. They are expected to have a solid understanding of React concepts, JavaScript ES6+, and related tools like Redux, Webpack, or Babel.

What are the key skills and qualifications needed to thrive as a mid level React developer?

To thrive as a Mid Level React Developer, you need strong proficiency in JavaScript, React.js, HTML, and CSS, often supported by a relevant degree or equivalent experience. Familiarity with development tools such as Git, RESTful APIs, and build systems like Webpack or Babel, as well as knowledge of testing frameworks, is typically expected. Effective problem-solving, teamwork, and communication skills help developers collaborate efficiently and adapt to evolving project requirements. These abilities are crucial for building scalable, maintainable applications that meet user needs and business goals.

What are some common challenges faced by mid level React developers when working on larger projects, and how can they be addressed?

Mid-level React developers often encounter challenges such as managing complex component hierarchies, ensuring consistent state management, and maintaining code readability as projects scale. To address these, developers should familiarize themselves with established patterns like Redux or Context API for state management, adopt reusable component structures, and follow best practices for code organization. Regular code reviews and collaborating closely with senior developers and designers also help ensure code quality and project alignment.

What are the most commonly searched types of React Developer jobs in Naperville, IL?

The most popular types of React Developer jobs in Naperville, IL are:

What cities near Naperville, IL are hiring for Mid Level React Developer jobs?

Cities near Naperville, IL with the most Mid Level React Developer job openings:

Mid Level React Developer jobs near you
Infographic showing various Mid Level React Developer job openings in Naperville, IL as of August 2026, with employment types broken down into 77% Full Time, 16% Part Time, and 7% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution, with an average salary of $128,237 per year, or $61.7 per hour.

Software Engineer

Ritchie Bros.

Westchester, IL

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 27 days ago

Ritchie Bros. Auctioneers rating

7.5

Company rating: 7.5 out of 10

Based on 26 frontline employees who took The Breakroom Quiz

5th of 19 rated auctioneers

Job description

Software Engineer II (Mid-Level) - .NET Backend / Microservices (Azure) + React/Vue

What You'll Do (Responsibilities)

  • Build and maintain backend services using C# and modern .NET (.NET 6/8; moving toward .NET 10)
  • Contribute to microservices-based systems, including helping with incremental migration from monolith to microservices
  • Develop and maintain serverless components using Azure Function Apps
  • Implement data access patterns using Cosmos DB, Azure Blob Storage, and SQL Server
  • Build and integrate RESTful APIs used by web applications
  • Implement secure authentication/authorization with SSO using Microsoft Entra ID (OAuth2/JWT concepts) 
  • Collaborate with frontend teams and contribute to UI code in React and/or Vue.js (feature work, API integration, debugging, performance fixes)
  • Write unit tests and help improve test coverage and overall code quality 
  • Participate in code reviews, follow engineering standards, and use GitHub + GitHub Copilot effectively (with good judgment and review discipline

Required Qualifications

  • 3-6 years professional software engineering experience (or equivalent)
  • Strong experience with C#, .NET Core / modern .NET, and building backend APIs 
  • Practical experience (project/production) with microservices and RESTful web services
  • Hands-on experience with Azure, including Azure Functions and at least one of: App Services / cloud hosting / Azure-native integrations 
  • Experience with SQL Server and writing/debugging performant 
  • Working knowledge of authentication concepts (OAuth2, JWT) and SSO integration (preferably Entra ID) 
  • Frontend experience required: hands-on work with React and/or Vue.js (JavaScript/TypeScript, component-based UI, consuming REST APIs) 
  • Experience writing unit tests and contributing to a quality-focused engineering culture

Preferred / Nice to Have

  • Experience helping modernize systems (e.g., monolith microservices)
  • Experience with Cosmos DB and/or Blob Storage in production workloads
  • Familiarity with CI/CD and automated testing practices
  • Mobile app development experience (or supporting mobile backends
  • Exposure to both React and Vue (not just one)

IAA Holdings, LLC (IAA)


IAA Holdings, LLC (IAA), a Ritchie Bros. Auctioneers company (NYSE: RBA) and (TSX: RBA), is a trusted global marketplace for insights, services, and transaction solutions for commercial assets and vehicles. Leveraging leading-edge technology and focusing on innovation, IAA's unique platform facilitates the marketing and sale of total-loss, damaged and low-value vehicles. IAA serves a global buyer base - located throughout over 170 countries - and a full spectrum of sellers, including insurers, dealerships, fleet lease and rental car companies, and charitable organizations. Buyers have access to multiple digital bidding and buying channels, innovative vehicle merchandising, and efficient evaluation services, enhancing the overall purchasing experience. IAA offers sellers a comprehensive suite of services aimed at maximizing vehicle value, reducing administrative costs, shortening selling cycle time and delivering the highest economic returns.

RB Global full-time employees are offered medical, dental, vision, and basic life insurances. Employees are able to enroll in our company's 401k plan and RB Global will match 100% for the first 4% contributed.  Employees will also receive 15 days of PTO each year.


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