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Freelance User Interface Developer React Js Jobs in Monroe, OH

NextGen Federal Systems

Senior Software Engineer

Dayton, OH

$119K - $157K/yr

Strong expertise in React JS for building modern and responsive user interfaces is highly desirable ... Proven experience as a Full Stack Developer or similar role is highly desirable * Capable of self ...

Sarian, Inc.

IOS Developer

Cincinnati, OH · On-site

$49.75 - $68.50/hr

Familiarity with iOS UI design principles, Human Interface Guidelines, and user experience best ... Knowledge of cross-platform development frameworks like React Native or Flutter. * Understanding of ...

Sarian, Inc.

Android Developer

Cincinnati, OH · On-site

$53.50 - $70.25/hr

Familiarity with Android UI design principles, Material Design guidelines, and user experience best ... Knowledge of cross-platform development frameworks like React Native or Flutter. * Understanding of ...

Kalepa

Sr Software Engineer - Full stack

Cincinnati, OH · On-site

$130 - $170/hr

Build dynamic, responsive UI components using Next.js, Angular, or React with TypeScript/JavaScript ... Collaboration & DevOps Practices** + Work cross-functionally with developers, architects ...

Cintrifuse

User Experience (UX) Lead

West Chester, OH · On-site

$100 - $160/hr

You'll collaborate closely with product, engineering, and customer success teams to ensure every ... Strong portfolio showcasing user-centered design processes, wireframes, prototypes, and final UI ...

New

Cryptic Vector

Full Stack Developer

Miamisburg, OH · On-site

Full Stack Developer As a Full Stack Developer at Cryptic Vector, you'll design, build, and develop ... Design and implement responsive, user-focused front-end interfaces using modern frameworks (React ...

Cryptic Vector

Full Stack Developer

Miamisburg, OH · On-site

Full Stack Developer As a Full Stack Developer at Cryptic Vector, you'll design, build, and develop ... Design and implement responsive, user-focused front-end interfaces using modern frameworks (React ...

Cryptic Vector

Full Stack Developer

Miamisburg, OH · On-site

Full Stack Developer As a Full Stack Developer at Cryptic Vector, you'll design, build, and develop ... Design and implement responsive, user-focused front-end interfaces using modern frameworks (React ...

The University of Dayton

Software Engineer

Dayton, OH · On-site

... User Interface Design & Development Experience with Neo4j & Graph Databases Experience with React ... Vue.js, Node.js Experience with PostgreSQL Development on Linux systems Active Security ...

CACI

AI Full Stack Developer

Dayton, OH · On-site

$63K - $129K/yr

Experience building clean, intuitive user interfaces using modern frameworks (e.g., React, Vue) or ... DevOps & Infrastructure: Experience containerizing applications using Docker/Podman and utilizing ...

University of Dayton

Software Engineer

Dayton, OH · On-site

... User Interface Design & Development • Experience with Neo4j & Graph Databases • Experience with ... React, Vue.js, Node.js • Experience with PostgreSQL • Development on Linux systems • Active ...

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How much do freelance user interface developer react js jobs pay per hour?

As of Sep 5, 2026, the average hourly pay for freelance user interface developer react js in Monroe, OH is $52.21, according to ZipRecruiter salary data. Most workers in this role earn between $45.67 and $59.42 per hour, depending on experience, location, and employer.

Is React Js good for freelancing?

React JS is a popular framework for freelance UI developers due to its widespread use, strong community support, and demand for interactive web applications. Freelancers skilled in React JS can find opportunities across various industries, often working remotely and using tools like Git and npm. Success depends on building a solid portfolio and staying updated with the latest React features and best practices.

Is React still in demand in 2026?

React.js remains a highly in-demand skill for freelance UI developers, as it is widely used for building dynamic and responsive web applications. Its large ecosystem, ongoing updates, and popularity among companies ensure continued demand for React expertise in 2026, especially for developers proficient in JavaScript and modern front-end development practices.

What cities near Monroe, OH are hiring for Freelance User Interface Developer React Js jobs?

Cities near Monroe, OH with the most Freelance User Interface Developer React Js job openings:

Freelance User Interface Developer React Js jobs near you

Senior Software Engineer

NextGen Federal Systems

Dayton, OH

$119K - $157K/yr

Full-time

Re-posted 29 days ago

Job description

NextGen Federal Systems, LLC is seeking a Software Engineer with experience in Systems Tool Kit (STK) to support the development and integration of mission analysis and modeling applications. These applications enable multi-domain analysis-including air, space, ground, and maritime systems-by leveraging physics-based modeling and simulation to assess system performance, coverage, communications, and operational effectiveness.

Responsibilities include software development, configuration, and execution; result interpretation; documentation; and modification and maintenance of tools and code. The selected candidate must be quick to learn, adaptable, and agile, interfacing directly with end-customers and customer leadership. The software engineer will provide a full range of systems and software engineering to support critical mission analyses.

Responsibilities
  • Develop, customize, and maintain STK-based applications to support mission planning, analysis, and visualization
  • Integrate STK (Engine, Components, or Desktop) with external tools, models, and data sources to enable end-to-end mission workflows
  • Implement backend services using Python and support frontend interfaces as needed
  • Analyze and interpret simulation results, providing actionable insights to engineering teams and stakeholders
  • Support traceability between mission analysis outputs and system models, ensuring consistency across the digital engineering environment
  • Support deployment and execution of applications in modern environments (e.g., containerized or cloud-based)
  • Contribute to documentation, user guides, and technical deliverables
  • Troubleshoot and enhance existing tools to improve performance, usability, and scalability
Qualifications
  • BS or equivalent in Computer Science, Engineering, Mathematics, or equivalent technical degree
  • 5+ years' prior work experience in the aerospace or defense industry, with demonstrated software development experience
  • Experience customizing or automating STK-based tools or applications highly desired (including STK, STK Engine, STK Components, and/or Cesium)
  • Experience integrating tools via APIs (REST or similar)
  • Proficiency in Python and experience with backend frameworks such as Flask is required
  • Strong expertise in React JS for building modern and responsive user interfaces is highly desirable
  • Knowledge of version control systems, preferably Git is highly desirable
  • Proven experience as a Full Stack Developer or similar role is highly desirable
  • Capable of self-management and responsibly executing multiple tasks in accordance with priorities and deadlines
  • Active Top Secret (TS) clearance required (SCI eligibility preferred)
Preferred Qualifications
  • Experience with STK Engine, STK Components, or Cesium
  • Experience linking STK analyses to MBSE environments (e.g., parameter passing, trade studies, digital thread integration)
  • Familiarity with digital engineering ecosystems, mission thread development, or model orchestration tools
  • Experience with Docker, cloud environments, or DevSecOps practices
  • Frontend development experience (e.g., React)

About NextGen:

NextGen Federal Systems is an innovative technology and professional services provider specializing in advanced software solutions and comprehensive mission and business support services. We work in close collaboration with our customers to truly understand their business and mission goals. Our approach is to design, build, implement, and manage solutions that measurably improve our client's organizational performance. We have established and foster a corporate culture where we:

  • Treat employees with fairness and respect regardless of their position, sexual identity, race, or tenure.
  • Communicate the importance of our mission and our employees' contributions to it, ensuring they understand how their job role contributes to the greater good.
  • Openly promote and communicate our ideas for change and adaptability.
  • Strive to achieve results as an organization.
  • Hold employees accountable to their commitments and provide incentives that encourage positive and productive behaviors.
  • Value the talents and contributions of our employees as the key factor for our success.
  • Create an environment where people can engage at all levels.
  • Encourage people to take risks and allow them to make mistakes.

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities.

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