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Mid Level Frontend Developer React Js Jobs in Missouri

LaunchCode

Software Engineer (TS/SCI)

Saint Louis, MO · On-site

$120K - $135K/yr

Our partner is seeking a passionate and mission-focused Mid-Level Software Engineer to support the ... Develop high-performance front-end applications using React.js. * Develop enterprise applications ...

Photon

Fronted Developer (React)

Springfield, MO · On-site

$94K - $110K/yr

Present low-level design or approach for the solution before development begins * Write reusable ... Mentor junior developers and provide guidance on front-end best practices Requirements * Bachelor s ...

Callaway Golf

Front End Developer

Cape Girardeau, MO · On-site

$100K - $116K/yr

... overall developer experience. * Stay current with emerging front-end technologies, AI-assisted ... Strong hands-on experience with Next.js (v14+, ideally v16) and React, including App Router, Server ...

The Timberline Group

Angular .Net Developer

Saint Louis, MO · On-site +1

$53.25 - $65.25/hr

This is a Mid to Senior-level full stack Software Developer position. This team is an Agile team ... modern front end frameworks (AngularJS, Angular, React.js). The role is full stack, so the ...

De Lage Landen International B.V.

$80K - $93K/yr

Front-End Developer As Front-End Developer, you will design, build, and deliver high-quality ... Advanced experience with at least one major front-end framework (React-preferred, Angular, Vue ...

Photon

Front end Developer (Reactjs)

Springfield, MO · On-site

$94K - $110K/yr

Design, develop, test, release, and maintain new and existing web applications built with React ... low-level design or approach for the solution before development begins Write reusable ...

Jobsbridge

UI Developer

Saint Louis, MO · On-site

$48.50 - $63.25/hr

Good Experience with JavaScript frameworks AngularJS, react.js, jQuery, jQuery UI Thorough knowledge of Object oriented and functional programming concepts in JavaScript. Strong development ...

Leidos

Mid-Level Software Engineer

Hazelwood, MO · On-site

$87K - $157K/yr

Go * Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django ... Certifications such as AWS Certified Developer, Security+, SAFe Practitioner or similar. #Chinook ...

Leidos

Mid-Level Software Engineer

Valley Park, MO · On-site

$87K - $157K/yr

Go * Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django ... Certifications such as AWS Certified Developer, Security+, SAFe Practitioner or similar. #Chinook ...

Leidos

Mid-Level Software Engineer

Saint Louis, MO · On-site

Go * Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django ... Certifications such as AWS Certified Developer, Security+, SAFe Practitioner or similar. #Chinook ...

Leidos

Mid-Level Software Engineer

Saint Louis, MO · On-site

$87K - $157K/yr

Go * Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django ... Certifications such as AWS Certified Developer, Security+, SAFe Practitioner or similar. #Chinook ...

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Mid Level Frontend Developer React Js information

What is the difference between Mid Level Frontend Developer React Js vs Frontend Developer Vue.js?

AspectMid Level Frontend Developer React JsFrontend Developer Vue.js
Required SkillsProficiency in React.js, JavaScript, HTML, CSS, state managementProficiency in Vue.js, JavaScript, HTML, CSS, component-based architecture
Work EnvironmentWeb development teams using React.js frameworksWeb development teams utilizing Vue.js frameworks
Common Industry UsagePopular in large-scale applications, enterprise solutionsFavored for flexible, lightweight projects, startups

Both roles require strong JavaScript skills and familiarity with modern frontend frameworks. The main difference lies in the specific framework: React.js is widely used in enterprise environments, while Vue.js is known for its simplicity and flexibility. Choosing between them depends on the project requirements and team preferences.

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Mid Software Engineer (TS/SCI) - NGA

LaunchCode

Saint Louis, MO • On-site

$120K - $135K/yr

Full-time

Posted 6 days ago

Job description

Description
Position Type: Direct Hire / Full-Time
Pay: $120,000-$135,000 + Relocation Assistance
Location: Downtown St. Louis, MO or Springfield, VA
Clearance: Active TS/SCI required
Hiring Timeline: Immediate
Company: The name of our partner organization will be disclosed during the interview process. This is not a direct role with LaunchCode; it is a position through LaunchCode, working with one of our partner companies.
Disclaimer: We are unable to provide work sponsorship for this role. U.S. Citizenship and an active TS/SCI clearance are required for this position.
Position Overview:
Our partner is seeking a passionate and mission-focused Mid-Level Software Engineer to support the AERO team and provide FAA and public air traffic control insights to NGA customers. This is an opportunity to work with a modern technology stack while rapidly developing intelligence analysis products that address critical mission challenges for the agency and its users.
The ideal candidate is energized by modern architectures, enjoys solving challenging technical problems, and can contribute across the software development lifecycle while working closely with other engineers and mission stakeholders.
Position Responsibilities:
  • Design, develop, and maintain enterprise software applications using modern technologies, including React.js and Python.
  • Develop high-performance front-end applications using React.js.
  • Develop enterprise applications using Python.
  • Develop and integrate RESTful web services and APIs.
  • Contribute to microservice architecture, design, and development.
  • Work with relational, spatial, and NoSQL databases.
  • Design and develop database solutions supporting enterprise applications.
  • Work with AWS cloud environments and AWS tooling, including S3.
  • Translate business and mission requirements into scalable, production-ready technical solutions.
  • Participate in the full software development lifecycle, including design, development, testing, deployment, and maintenance.
  • Collaborate with software engineers, technical teams, and mission stakeholders to deliver high-quality solutions.
  • Contribute to modern software development practices and continuous
    improvement initiatives.

Required Skills/Experience:
  • Bachelor's degree or equivalent in Computer Science, Engineering, Mathematics, Information Systems, or a related technical field.
  • 4+ years of experience in enterprise software engineering/development.
  • Experience with Python enterprise application development.
  • Experience building high-performance applications using React.js.
  • Foundational knowledge of Node.js.
  • Experience with web services architecture, design, and development.
  • Experience with relational database design.
  • Experience with spatial database design.
  • Experience with NoSQL database design.
  • Experience with microservice architecture, design, and development.
  • Experience working in AWS and utilizing AWS tooling such as S3.
  • Ability to translate complex requirements into effective technical solutions.

Desired Skills/Experience:
  • Experience with Spring applications.
  • Experience as a full-stack developer across web services, databases, and front-end development.
  • Experience developing geospatial information systems (GIS).
  • Experience working with open-source and proprietary geospatial formats.
  • Experience supporting intelligence analysis or other mission-focused applications.

Apply