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Mern Stack Engineer Jobs in Illinois (NOW HIRING)

Wingrity Infotech Inc

Meanstack Developer

Chicago, IL · On-site

Mern Stack Developer / Software Developer Location: Chicago, IL (3 Days Hybrid) Duration: 12+ Months (Possible extension) Client: Marsh & McLennan (Routing initially through other vendor) Mode of ...

Yotta Systems INC

MernStack Developer

Chicago, IL · On-site

Seeking a Mern Stack Developer with approximately 5 7 years of experience. * React.js and Node.js are the most critical technical skills. * Strong hands-on experience with MongoDB and PostgreSQL/SQL ...

Overture Partners

Risk Consulting

Chicago, IL · On-site

$64 - $70/hr

** Due to client requirements, applicants must be able to work on a w2 basis Job Overview We are seeking an experienced Senior Full-Stack MERN Developer for an onsite opportunity in Chicago, Illinois.

Dellfor Technologies

senior .net developer

Illinois City, IL · On-site

$52.50 - $66.75/hr

As a full stack engineer your contribution will have a direct impact on our customer experience and ... Recent 1+ years of developing web application in open source stack (MEAN, MERN) * 2+ years of ...

All JobsMern Stack Engineer JobsMern Stack Engineer Jobs in Illinois

Mern Stack Engineer information

See Illinois salary details

$43.1K

$130.6K

$184.6K

How much do mern stack engineer jobs pay per year?

As of Aug 21, 2026, the average yearly pay for mern stack engineer in Illinois is $130,596.00, according to ZipRecruiter salary data. Most workers in this role earn between $107,600.00 and $153,100.00 per year, depending on experience, location, and employer.

What is the difference between Mern Stack Engineer vs Front End Developer?

AspectMern Stack EngineerFront End Developer
SkillsJavaScript, React, Node.js, MongoDB, Express.jsHTML, CSS, JavaScript, React or Angular
ResponsibilitiesDevelop full-stack applications, manage backend and frontendDesign and implement user interfaces, improve user experience
Work EnvironmentCollaborates on both client and server-side developmentFocuses primarily on client-side development
Common UsageUsed in full-stack projects across startups and tech companiesUsed in frontend-focused roles in various industries

The main difference between a Mern Stack Engineer and a Front End Developer lies in their scope of work. Mern Stack Engineers handle both backend and frontend development using JavaScript-based technologies, while Front End Developers focus solely on creating and optimizing user interfaces. Both roles require JavaScript skills, but Mern Stack Engineers have a broader skill set that includes server-side development and database management.

What are popular job titles related to Mern Stack Engineer jobs in Illinois?

For Mern Stack Engineer jobs in Illinois, the most frequently searched job titles are:

What job categories do people searching Mern Stack Engineer jobs in Illinois look for?

The top searched job categories for Mern Stack Engineer jobs in Illinois are:

Mern Stack Engineer jobs near you

Senior Full-Stack MERN Developer (Contract / Hybrid)

Calqulate

Chicago, IL • Hybrid

Contractor

Posted 7 days ago

Job description

Location: Chicago, IL (Loop / Downtown – Hybrid 3 Days On-Site)

Employment Type: 6-Month Contract (Potential for extension)

Industry: Financial Services / Commercial Insurance Technology

Experience Level: Mid-Senior (6–10 Years)

Job Function: Software Engineering / Full-Stack Development

Visa Sponsorship / Relocation: Not Available (Local Candidates Only)

About the Role

We are seeking an experienced Senior Full-Stack MERN Developer for a 6-month hybrid contract engagement with a global enterprise insurance technology group in downtown Chicago.

In this role, you will design, develop, test, and deploy custom data analytics solutions and application modules. You will work across the full stack utilizing MongoDB, Express.js, React.js, Node.js, SQL, and AWS infrastructure, supporting complex data migrations and modern client-facing applications.

Key Responsibilities

  • Full-Stack Engineering: Independently design, develop, code, test, and debug web applications and technical modules using the MERN stack (MongoDB, Express, React, Node) and relational SQL databases.
  • Cloud & Infrastructure Maintenance: Deploy, manage, and maintain application environments on AWS infrastructure (utilizing EC2, S3, Lambda, RDS, and related services).
  • Data & Analytics Integration: Support custom data analytics solutions, complex SQL database queries, data migrations, and application integration.
  • DevOps & Version Control: Manage source code repositories using Git (branching, merging, PR reviews) while following established deployment and testing workflows.
  • Technical Mentorship & Support: Serve as a senior technical resource and mentor for junior developers; assist with escalated tier-3 technical troubleshooting and root-cause resolution.
  • AI & Modern Workflow Adoption: Leverage modern AI-driven developer tools and automated practices to optimize coding efficiency and accelerate feature delivery.

Must-Have Qualifications

  • Experience: 6 to 10 years of professional full-stack web development experience with a heavy focus on the MERN stack (MongoDB, Express.js, React.js, Node.js).
  • SQL & Database Mastery: Strong proficiency in SQL databases, including complex query writing, schema design, and data manipulation.
  • Cloud Services: Hands-on experience deploying and managing applications on AWS cloud infrastructure.
  • Version Control: Deep experience with Git version control and collaborative developer workflows.
  • Engineering Best Practices: Proven expertise in software design patterns, unit testing, debugging, CI/CD, and documentation.
  • Location & Work Model: Must reside locally in the Chicago metro area and be able to work 3 days/week on-site in downtown Chicago.

Preferred / Bonus Skills

  • Experience within the Insurance, Commercial Claims, or Risk Management domain.
  • Hands-on experience with TypeScript and modern containerization technologies (Docker, Kubernetes).
  • Experience handling enterprise data migrations and custom analytics engine builds.

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