Senior Full Stack Developer (.NET AI Focused) Location: Hoffman Estates, IL (Hybrid) Duration: 3-6 months Rate: Market Required Qualifications * Strong full-stack development experience (.NET C# ...
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Senior Full Stack Developer (.NET AI Focused) Location: Hoffman Estates, IL (Hybrid) Duration: 3-6 months Rate: Market Required Qualifications * Strong full-stack development experience (.NET C# ...
Sr. Full Stack Engineer
Mundelein, IL · Remote
$140K - $160K/yr
We're looking for a Sr. Full Stack Engineer who's eager to think big and build products that make a difference, improving the experience of tens of thousands of caregivers and families. You'll work ...
Quick apply
Sr. Full Stack Engineer
Mundelein, IL · Remote
$140K - $160K/yr
We're looking for a Sr. Full Stack Engineer who's eager to think big and build products that make a difference, improving the experience of tens of thousands of caregivers and families. You'll work ...
Full Stack Developer
Libertyville, IL · On-site
They have immediate need for two Fullstack Developer experienced in NodeJS, ReactJS and Redux. * Design, develop, test and debug applications and systems of varying degrees of complexity * Develop ...
Full Stack Developer
Libertyville, IL · On-site
They have immediate need for two Fullstack Developer experienced in NodeJS, ReactJS and Redux. * Design, develop, test and debug applications and systems of varying degrees of complexity * Develop ...
They have immediate need for two Fullstack Developer experienced in NodeJS, ReactJS and Redux. * Design, develop, test and debug applications and systems of varying degrees of complexity * Develop ...
They have immediate need for two Fullstack Developer experienced in NodeJS, ReactJS and Redux. * Design, develop, test and debug applications and systems of varying degrees of complexity * Develop ...
Full Stack Engineer
Schaumburg, IL · On-site
$115K - $130K/yr
Full Stack Engineer Product Strategy & Technology Team (PST) Reports to: Director of Product Development. Location: Schaumburg IL Hybrid schedule (in office Monday, Tuesday, Thursday). The Full Stack ...
Full Stack Engineer
Schaumburg, IL · On-site
$115K - $130K/yr
Full Stack Engineer Product Strategy & Technology Team (PST) Reports to: Director of Product Development. Location: Schaumburg IL Hybrid schedule (in office Monday, Tuesday, Thursday). The Full Stack ...
Full Stack Engineer
Schaumburg, IL · On-site
$115K - $130K/yr
The Full Stack Engineer works alongside other developers on the Product Strategy & Technology (PST) team to build, maintain, and improve DataDelivers' core CDP product. This role owns feature ...
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Full Stack Engineer
Schaumburg, IL · On-site
$115K - $130K/yr
The Full Stack Engineer works alongside other developers on the Product Strategy & Technology (PST) team to build, maintain, and improve DataDelivers' core CDP product. This role owns feature ...
Senior Full Stack Software Engineer
Lake Forest, IL · On-site
PTO
... developers to design and build a real-time, web-based system for freight management o Build connection interfaces for third-party systems o Engage in the full development life-cycle including ...
Senior Full Stack Software Engineer
Lake Forest, IL · On-site
PTO
... developers to design and build a real-time, web-based system for freight management o Build connection interfaces for third-party systems o Engage in the full development life-cycle including ...
Full Stack Engineer
Mundelein, IL · Remote
$80K - $120K/yr
We're looking for a Full Stack Engineer who's eager to grow fast, think big, and build products that make a difference, improving the experience of thousands of caregivers and families. You'll work ...
Quick apply
Full Stack Engineer
Mundelein, IL · Remote
$80K - $120K/yr
We're looking for a Full Stack Engineer who's eager to grow fast, think big, and build products that make a difference, improving the experience of thousands of caregivers and families. You'll work ...
Full Stack .NET Developer
Schaumburg, IL · On-site
Medical
Dental
Vision
Retirement
PTO
On-site with flexible scheduling options (e.g., flexible start/stop times, 4-day/10-hour work weeks available) The Role We are looking for an ambitious, highly versatile Full Stack .NET Developer to ...
Full Stack .NET Developer
Schaumburg, IL · On-site
Medical
Dental
Vision
Retirement
PTO
On-site with flexible scheduling options (e.g., flexible start/stop times, 4-day/10-hour work weeks available) The Role We are looking for an ambitious, highly versatile Full Stack .NET Developer to ...
Full Stack .NET Developer
Schaumburg, IL · On-site
Medical
Dental
Retirement
On-site with flexible scheduling options (e.g., flexible start/stop times, 4-day/10-hour work weeks available) The Role We are looking for an ambitious, highly versatile Full Stack .NET Developer to ...
Full Stack .NET Developer
Schaumburg, IL · On-site
Medical
Dental
Retirement
On-site with flexible scheduling options (e.g., flexible start/stop times, 4-day/10-hour work weeks available) The Role We are looking for an ambitious, highly versatile Full Stack .NET Developer to ...
Full-Stack Application Engineer
Schaumburg, IL · Remote
$105K/yr
Medical
Dental
Vision
Life
Retirement
Job Title: Full-Stack .NET Application Engineer Location: Schaumburg, Illinois Type: Contract To Hire Compensation: $105,000 annual Work Model: Hybrid - onsite and remote Hours: 40.0:
Quick apply
Full-Stack Application Engineer
Schaumburg, IL · Remote
$105K/yr
Medical
Dental
Vision
Life
Retirement
Job Title: Full-Stack .NET Application Engineer Location: Schaumburg, Illinois Type: Contract To Hire Compensation: $105,000 annual Work Model: Hybrid - onsite and remote Hours: 40.0:
Full-Stack Application Engineer
Schaumburg, IL · Remote
$105K/yr
Medical
Dental
Vision
Life
Retirement
Job Title: Full-Stack .NET Application Engineer Location: Schaumburg, Illinois Type: Contract To Hire Compensation: $105,000 annual Work Model: Hybrid - onsite and remote Hours: 40.0:
Quick apply
Full-Stack Application Engineer
Schaumburg, IL · Remote
$105K/yr
Medical
Dental
Vision
Life
Retirement
Job Title: Full-Stack .NET Application Engineer Location: Schaumburg, Illinois Type: Contract To Hire Compensation: $105,000 annual Work Model: Hybrid - onsite and remote Hours: 40.0:
Full-Stack Application Engineer
Schaumburg, IL · Remote
$105K/yr
Medical
Dental
Vision
Life
Retirement
Job Title: Full-Stack .NET Application Engineer Location: Schaumburg, Illinois Type: Contract To Hire Compensation: $105,000 annual Work Model: Hybrid - onsite and remote Hours: 40.0:
Quick apply
Full-Stack Application Engineer
Schaumburg, IL · Remote
$105K/yr
Medical
Dental
Vision
Life
Retirement
Job Title: Full-Stack .NET Application Engineer Location: Schaumburg, Illinois Type: Contract To Hire Compensation: $105,000 annual Work Model: Hybrid - onsite and remote Hours: 40.0:
Full-Stack Application Engineer
Schaumburg, IL · Remote
$105K/yr
Medical
Dental
Vision
Life
Retirement
Job Title: Full-Stack .NET Application Engineer Location: Schaumburg, Illinois Type: Contract To Hire Compensation: $105,000 annual Work Model: Hybrid - onsite and remote Hours: 40.0:
Quick apply
Full-Stack Application Engineer
Schaumburg, IL · Remote
$105K/yr
Medical
Dental
Vision
Life
Retirement
Job Title: Full-Stack .NET Application Engineer Location: Schaumburg, Illinois Type: Contract To Hire Compensation: $105,000 annual Work Model: Hybrid - onsite and remote Hours: 40.0:
Full-Stack Application Engineer
Schaumburg, IL · Remote
$105K/yr
Medical
Dental
Vision
Life
Retirement
Job Title: Full-Stack .NET Application Engineer Location: Schaumburg, Illinois Type: Contract To Hire Compensation: $105,000 annual Work Model: Hybrid - onsite and remote Hours: 40.0:
Quick apply
Full-Stack Application Engineer
Schaumburg, IL · Remote
$105K/yr
Medical
Dental
Vision
Life
Retirement
Job Title: Full-Stack .NET Application Engineer Location: Schaumburg, Illinois Type: Contract To Hire Compensation: $105,000 annual Work Model: Hybrid - onsite and remote Hours: 40.0:
Full-Stack Application Engineer
Schaumburg, IL · Remote
$105K/yr
Medical
Dental
Vision
Life
Retirement
Job Title: Full-Stack .NET Application Engineer Location: Schaumburg, Illinois Type: Contract To Hire Compensation: $105,000 annual Work Model: Hybrid - onsite and remote Hours: 40.0:
Quick apply
Full-Stack Application Engineer
Schaumburg, IL · Remote
$105K/yr
Medical
Dental
Vision
Life
Retirement
Job Title: Full-Stack .NET Application Engineer Location: Schaumburg, Illinois Type: Contract To Hire Compensation: $105,000 annual Work Model: Hybrid - onsite and remote Hours: 40.0:
Full-Stack Application Engineer
Schaumburg, IL · On-site
$95K - $105K/yr
Medical
Dental
Vision
Life
Retirement
Job Title: Full-Stack .NET Application Engineer Location: Schaumburg, Illinois Type: Contract To Hire Compensation: $105,000 annual Work Model: Hybrid - onsite and remote Hours: 40.0:
Full-Stack Application Engineer
Schaumburg, IL · On-site
$95K - $105K/yr
Medical
Dental
Vision
Life
Retirement
Job Title: Full-Stack .NET Application Engineer Location: Schaumburg, Illinois Type: Contract To Hire Compensation: $105,000 annual Work Model: Hybrid - onsite and remote Hours: 40.0:
A large enterprise organization is seeking a Full Stack ... NET Application Developer to support the development and modernization of web applications. This is ...
A large enterprise organization is seeking a Full Stack ... NET Application Developer to support the development and modernization of web applications. This is ...
We want to bridge the gap between web developers and traditional tech ops by building processes that support our infrastructure including data management, monitoring, and deployment. This role ...
We want to bridge the gap between web developers and traditional tech ops by building processes that support our infrastructure including data management, monitoring, and deployment. This role ...
We want to bridge the gap between web developers and traditional tech ops by building processes that support our infrastructure including data management, monitoring, and deployment. This role ...
We want to bridge the gap between web developers and traditional tech ops by building processes that support our infrastructure including data management, monitoring, and deployment. This role ...
Senior Full Stack Developer information
See Crystal Lake, IL salary details
$23.31 - $28.78
1% of jobs
$28.78 - $34.25
3% of jobs
$34.25 - $39.72
5% of jobs
$39.72 - $45.18
7% of jobs
$48.01 is the 25th percentile. Wages below this are outliers.
$45.18 - $50.65
16% of jobs
$50.65 - $56.12
17% of jobs
The median wage is $56.28 / hr.
$56.12 - $61.59
18% of jobs
$64.89 is the 75th percentile. Wages above this are outliers.
$61.59 - $67.05
13% of jobs
$67.05 - $72.52
9% of jobs
$72.52 - $77.99
6% of jobs
$77.99 - $83.46
4% of jobs
$23
$57
$83
How much do senior full stack developer jobs pay per hour?
As of Aug 15, 2026, the average hourly pay for senior full stack developer in Crystal Lake, IL is $57.47, according to ZipRecruiter salary data. Most workers in this role earn between $47.79 and $66.20 per hour, depending on experience, location, and employer.
What is the difference between Senior Full Stack Developer vs Backend Developer?
| Aspect | Senior Full Stack Developer | Backend Developer |
|---|---|---|
| Required Skills | Proficiency in both frontend and backend technologies, such as JavaScript, HTML, CSS, and server-side languages like Node.js, Python, or Java | Specialized in server-side development, working with languages like Java, Python, Ruby, or PHP, and database management |
| Work Environment | Collaborates across frontend and backend teams, often involved in full project lifecycle | Focuses primarily on backend systems, APIs, and database integration |
| Common Usage | Used in roles requiring full project oversight and versatile development skills | Used in roles focused on server-side logic, database management, and API development |
The main difference is that a Senior Full Stack Developer handles both frontend and backend development, providing a comprehensive approach to projects, while a Backend Developer specializes solely in server-side logic and database management. Both roles require strong programming skills, but the Full Stack Developer's expertise spans the entire technology stack.
How does a senior full stack developer typically collaborate with cross-functional teams during a project lifecycle?
As a Senior Full Stack Developer, you'll frequently collaborate with designers, product managers, QA engineers, and other developers to deliver end-to-end solutions. You'll be involved in requirements discussions, offer technical guidance, and help align frontend and backend development with business goals. Your role often includes code reviews, mentoring junior team members, and ensuring seamless integration across various systems. This collaborative environment encourages knowledge sharing and innovation while ensuring project success.
What are the key skills and qualifications needed to thrive as a senior full stack developer, and why are they important?
To thrive as a Senior Full Stack Developer, you need advanced proficiency in both front-end and back-end programming languages, frameworks, and a solid understanding of software architecture, usually supported by a relevant degree and several years of experience. Mastery of tools such as Git, Docker, CI/CD systems, and cloud platforms like AWS or Azure is typically required, alongside familiarity with databases and version control systems. Strong problem-solving abilities, leadership, effective communication, and collaboration skills set exceptional developers apart. These skills and qualities are crucial for delivering robust, scalable solutions while mentoring teams and efficiently bridging gaps between client requirements and technical implementation.
What is a senior full stack developer?
Senior Full Stack Developers are experienced professionals who design, develop, and maintain both the front-end and back-end components of web applications. They are proficient in multiple programming languages and frameworks, enabling them to handle servers, databases, APIs, and user interfaces. In addition to coding, they often lead development teams, make architectural decisions, and ensure software quality and scalability. Their expertise allows them to oversee the entire application lifecycle, from concept to deployment.
What are the most commonly searched types of Full Stack Developer jobs in Crystal Lake, IL?
The most popular types of Full Stack Developer jobs in Crystal Lake, IL are:
What job categories do people searching Senior Full Stack Developer jobs in Crystal Lake, IL look for?
The top searched job categories for Senior Full Stack Developer jobs in Crystal Lake, IL are:
What cities near Crystal Lake, IL are hiring for Senior Full Stack Developer jobs?
Cities near Crystal Lake, IL with the most Senior Full Stack Developer job openings:
Contractor
Re-posted 28 days ago
Job description
Role: Senior Full Stack Developer (.NET AI Focused)
Location: Hoffman Estates, IL (Hybrid)
Duration: 3-6 months
Rate: Market
Required Qualifications
- Strong full-stack development experience (.NET C# + ReactJS)
- Demonstrated advanced proficiency with GitHub Copilot in enterprise development environments
- Experience using AI tools for code optimization, debugging, and refactoring
- Experience working within containerized environments (Kubernetes)
- Strong understanding of distributed systems and event-driven architectures
Core Responsibilities
- Lead AI-assisted refactoring of .NET C# microservices
- Develop and enhance ReactJS front-end components aligned with backend improvements
- Leverage GitHub Copilot (advanced usage required) and Claude Code to accelerate development tasks
- Evaluate AI-generated code for quality, security, and architectural alignment
- Collaborate with QA (automation with AI) and DevOps/Infrastructure (Kubernetes, Kafka) resources
- Conduct performance benchmarking and outcome validation
- Identify opportunities to apply AI to improve existing development workflows
- Troubleshoot complex distributed system issues across services and infrastructure
Technical Environment
- .NET C# Microservices Architecture
- ReactJS
- On-Premises Kubernetes (K8S)
- Kafka
- PostgreSQL
- Redis
- Apache Druid
- ELK Stack
- AI Coding Tools: GitHub Copilot (critical), Claude Code
Preferred Qualifications
- Experience designing AI-assisted development workflows
- Background supporting infrastructure modernization initiatives
- Exposure to automation frameworks utilizing AI
About TechTammina
Sourced by ZipRecruiter
Industry
It services
Company size
201 - 500 Employees
Headquarters location
Chantilly, VA, US
Year founded
2005