Senior Full Stack React Developer Jobs in Chicago, IL

We are hiring a Senior Full Stack Engineer (React Native/Java) to join our client remotely. This position is heavier React Native leaning.

• Develop and maintain cross-platform mobile applications using React Native and TypeScript.
• Design, build, and integrate RESTful APIs using Java and Spring Boot.
• Collaborate with Product Managers, Designers, and Engineers to deliver new features and enhancements.
• Develop reusable, scalable, and performant mobile UI components.
• Implement state management strategies using Redux, Context API, or similar frameworks.
• Build secure, scalable backend services and microservices.
• Integrate third-party APIs, authentication services, and mobile device capabilities.
• Optimize application performance, responsiveness, and user experience.
• Participate in architecture discussions and technical design decisions.
• Create and maintain automated testing for mobile and backend applications.
• Support CI/CD pipelines and deployment processes.
• Troubleshoot production issues and drive solutions through root cause analysis.
• Mentor developers and promote engineering best practices.

• 10+ years of software engineering experience.
• 8+ years of React Native development experience.
• Strong experience with Java and Spring Boot.
• Experience developing and consuming REST APIs.

This is a Contract position based out of Chicago, IL.

The pay range for this position is $65.00 - $75.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave)

This is a fully remote position.

This position is anticipated to close on Aug 14, 2026.

We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

We’re a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We’re a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We’re strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We’re building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.