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  • Senior UI/UX Engineer

    $107.9k - $195.05k

     ...Strong professional experience developing modern web-based user interfaces and user experiences. Proficiency with HTML, CSS, JavaScript/TypeScript, and Python. Experience with modern UI frameworks such as React, Angular, Vue.js, or Django. Demonstrated understanding... 
    Javascript
    Contract work
    Local area
    Immediate start

    Leidos

    Wood River, IL
    15 hours ago

  • Jr Software Developer

     ...RequiredQualifications: oFamiliarity with Agile/Scrum methodologies and software development lifecycle. oExperience with Javascript development using Node.js / React oFamiliarity with SQL/RDBMS, API integration,cloud native development and Docker/containers... 
    Javascript

    CEdge Inc

    Saint Louis, MO
    3 days ago

  • Mendix Developer

    $75.2k - $158.1k

     ...standards Integrate Mendix applications with external systems, databases, and APIs Implement custom widgets and modules using JavaScript, Java, or React when needed Perform code reviews and ensure adherence to Mendix best practices and coding standards... 
    Javascript
    Full time
    Contract work
    Work experience placement
    Local area
    Flexible hours

    CACI International

    Alton, IL
    7 hours agonew

  • Full Stack Developer

    $115k - $125k

     ...of a strategic modernization effort to change how business applications are developed, integrated, and delivered, using Node.js, JavaScript, APIs, and the Profound.js framework. You will help modernize legacy applications into scalable, maintainable systems and work with... 
    Javascript

    KForce

    Saint Louis, MO
    17 hours ago

  • Software Engineer SME

    $131.3k - $237.35k

     ...with the following technologies: o Web: HTML, CSS, JSON, Ajax, and REST APIs o Object-oriented Programming: Python, Java, or JavaScript o Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django, Node.js, Flask, or Svelte o Cloud... 
    Javascript
    Full time
    Contract work

    Leidos

    Saint Louis, MO
    7 hours agonew

  • Mid-Level Software Engineer

    $87.1k - $157.45k

     ...with the following technologies: o Web: HTML, CSS, JSON, Ajax, and REST APIs o Object-oriented Programming: Python, Java, or JavaScript o Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django, Node.js, Flask, or Svelte o Cloud... 
    Javascript
    Full time
    Contract work

    Leidos

    Saint Louis, MO
    7 hours agonew

  • Junior Software Engineer

    $69.55k - $125.73k

     ...Experience with the following technologies: Web: HTML, CSS, JSON, Ajax, and REST APIs Object-oriented Programming: Python, Java, or JavaScript Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django, Node.js, Flask, or Svelte Cloud... 
    Javascript
    Contract work

    Leidos

    Saint Louis, MO
    7 hours agonew

  • Senior Software Engineer

    $107.9k - $195.05k

     ...with the following technologies: o Web: HTML, CSS, JSON, Ajax, and REST APIs o Object-oriented Programming: Python, Java, or JavaScript o Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django, Node.js, Flask, or Svelte o Cloud... 
    Javascript
    Full time
    Contract work

    Leidos

    Saint Louis, MO
    7 hours agonew

  • Software Engineer 2 (ASP.NET Web API)

    $105.4k - $124k

     ...development life cycle and agile techniquesC# ASP.NET MVC / .NET Framework (at least 4.8 or above)Web Technologies: HTML5, XML, XSL, JavaScript, NodeClient-side framework: jQueryAutomated Testing, NUnit, XUnit, Selenium, or PlaywrightMS SQL Server 2016+SQL Server... 
    Javascript
    Full time
    Local area
    3 days per week

    US Bank

    Saint Louis, MO
    7 hours agonew

  • Application Developer - JavaScript

    $83.72k - $141.44k

     ...cartography, advanced map visualizations, and web-based GIS experiences. This role focuses on hands-on application development using JavaScript, TypeScript, ArcGIS Maps SDK for JavaScript, and modern web application frameworks to test ideas, visualize complex spatial data,... 
    Javascript

    Esri

    Saint Louis, MO
    more than 2 months ago

  • Lead Application Developer

    $120k

     ...services, cloud development, and DevOps practices. What We're Looking For: Technical Proficiency: Strong proficiency in JavaScript/TypeScript, HTML, and CSS. Backend Development: Experience with backend frameworks (NestJS, Node.js, or similar). Frontend... 
    Javascript

    Group1001

    Saint Louis, MO
    1 day ago

  • Senior Shopify Storefront Engineer

     ...sections/blocks/snippets, metafields/metaobjects, settings schema, Shopify CLI and the theme editor. ~ Excellent vanilla JavaScript and Web Components / custom elements (we do not use React or Vue in the theme), plus modern CSS/Sass and a real build toolchain (... 
    Javascript

    Plug

    Saint Louis, MO
    a month ago

  • Full Stack JavaScript Developer (Data & Search Focus)

    $140k - $170k

     ...Louis, MO (On-site) Clearance: TS Required / TS/SCI Preferred Position Overview Metric5 is seeking a motivated Full Stack JavaScript Developer to join a highly visible mission project for our NGA customer. In this role, your primary focus will be designing,... 
    Javascript
    Temporary work
    Immediate start

    Metric5

    Saint Louis, MO
    1 day ago

  • Lead QA Automation Engineer

     ...years in automation testing, with at least 2 years hands-on experience using Cypress and TypeScript • Advanced proficiency in JavaScript/TypeScript, Node.js, and automation design patterns • Skilled in API automation using tools such as Postman or equivalent •... 
    Javascript

    The Giant Bullseye

    Saint Louis, MO
    11 days ago

  • Full Stack Developer

     ...Backend-Focused) Location: Newark, NJ area Employment Type: Contract-to-Hire (W2) Requirements: Experience with Python, Java, and JavaScript; working in distributed systems, object-oriented programming, design patterns, and design methodology Experience with Java... 
    Javascript
    Contract work

    JSR Tech Consulting

    Saint Louis, MO
    4 days ago

  • Associate Software Engineer

    $68.4k

     ...scalable; highly available systems To include: 1 years experience in at least one modern programming languages (Java, Python, JavaScript, ACE, IIB/ITX, Informatica preferred), and experience with at least two of the following: React, Angular v4+, NodeJS, NoSQL databases... 
    Javascript
    Full time
    Temporary work
    For contractors
    Work at office
    Local area

    Highmark Health

    Alton, IL
    7 hours agonew

  • Full Stack Engineer

     ...development experience with modern web technologies. – Strong proficiency in frontend frameworks (React preferred) and modern JavaScript/TypeScript. – Solid backend experience with Python (Django or FastAPI) and RESTful API design. – Experience building interfaces... 
    Javascript
    Local area

    Sunthetics

    Saint Louis, MO
    3 days ago

  • Senior Mobile App Developer

    $120k - $130k

     ...mobile application development a must, Native Android/iOS languages Java, Kotlin, Swift, Cross-Platform Flutter Dart, React Native JavaScript, VS Code IDE Understanding of all core web technologies such as XML, HTML, CSS, JQuery, XHTML, JSP, REST web services, Tag... 
    Javascript
    Work experience placement
    Remote work

    Insight Global

    Saint Louis, MO
    15 hours ago

  • Senior Software Engineer

     ...background in Backend or Full Stack technologies, operating within modern environments (like our core stack of Ruby on Rails, TypeScript/JavaScript, and PostgreSQL ). System Design: Expertise in architecting complex systems for long-term maintainability, performance, and... 
    Javascript
    Full time
    Temporary work
    Work experience placement
    Remote work
    Long distance
    Flexible hours

    Fuze Health

    Alton, IL
    8 hours agonew

  • Senior UI/UX Engineer — Mission-Critical Interfaces Lead

    Leidos is seeking a Sr. UI/IX Engineer to shape mission-critical interfaces on the Chinook Program. You will translate complex requirements into intuitive, responsive UI/IX solutions and work with designers, product owners, and engineers in an Agile setting across multiple...
    Javascript

    Leidos Inc

    Saint Louis, MO
    15 hours ago

  • Senior Principal Software Engineer, Digital Product R&D

    $139k - $196k

     ...ability to personally write, review, debug, test, and deploy production‑quality software. Strong experience with C#, .NET, TypeScript/JavaScript, Angular or comparable modern web frameworks, RESTful APIs, SQL, Git, CI/CD, and automated testing. Experience designing and... 
    Javascript
    Work experience placement

    Edwards Lifesciences Gruppe

    Alton, IL
    4 days ago

  • Mobile Frontend Developer

     ...one or more mobile frameworks: · React Native, Flutter, or native development (Swift, Kotlin, Java). · Strong understanding of JavaScript, TypeScript, or Dart (depending on framework). · Experience with state management libraries (e.g., Redux, MobX, Provider, Bloc)... 
    Javascript
    Remote work

    Krest Global Solutions

    Saint Louis, MO
    20 days ago

  • Entry Level Software Developer

    $600 per week

     ...time, Dev10 equips you with the tools to succeed. You'll train in technologies including Java, IntelliJ, MySQL, Spring, HTML, CSS, JavaScript, REST, and React.  Now hiring for our Software Developer cohort starting in January 2027.  To apply, please submit a formal... 
    Javascript
    Hourly pay
    Work experience placement
    H1b
    Immediate start
    Relocation
    Work visa
    Relocation package

    Genesis10

    Saint Louis, MO
    1 day ago

  • Senior Software Engineer II

    $121k - $190.6k

     ...the changing needs of the business while meeting deadlines. Expertise in creating applications using technologies such as C#, JavaScript, HTML, CSS, ASP.NET MVC, RESTful Web Services, SQL Server. Ability to perform effective code reviews and recommend automated review... 
    Javascript
    Full time
    Work experience placement
    Local area

    CDW

    Alton, IL
    17 hours ago

  • Software Development Engineer II- Back End

    $97.24k - $162.24k

     ...years of professional backend software engineering experience ~ Professional experience developing backend services using Python, JavaScript/Node,js and Java ~ Experience designing and building REST APIs and service-based architectures ~ Experience extending or... 
    Javascript
    Worldwide
    Relocation
    Relocation package

    Esri

    Saint Louis, MO
    more than 2 months ago

  • Senior Node.js Developer

    Job Description Job Description Overview: We are seeking a Senior Node.js Developer to lead backend development for security and vulnerability remediation programs. The ideal candidate has strong Node.js expertise, experience working with security teams, and exposure...

    The Giant Bullseye

    Saint Louis, MO
    29 days ago

  • Full Stack Software Engineer

     ..., and maintain cloud-based services using AWS Lambda, EC2, and other core AWS services. Write and maintain code in C#, Java, JavaScript/TypeScript, Python, and Shell scripting. Create, document, and manage new and existing functionality in GitLab repositories.... 
    Javascript
    Immediate start

    Reinventing Geospatial, Inc. (RGi)

    Saint Louis, MO
    a month ago

  • Full-Stack Developer

     ...Information Systems, or a related field; equivalent experience may be considered. Proficiency Required In: .NET Core / .NET C# JavaScript / TypeScript Modern front-end frameworks (Angular preferred; React experience a plus) SQL Server, Entity Framework, LINQ... 
    Javascript
    Temporary work
    Work at office
    Remote work
    Flexible hours

    Lexicon Services

    Saint Louis, MO
    14 days ago

  • C# Developer

     ...In-Depth programming knowledge in C# with minimum five-year experience Client-side development experience using Angular and JavaScript Experience working with MS SQL Server database Strong background developing applications using Microsoft Visual Studio and... 
    Javascript

    The Timberline Group Company

    Saint Louis, MO
    1 day ago

  • Full Stack Engineer

    $49 - $53 per hour

     ...as a full stack developer ~ Proficiency with Apex and/ or Java ~ Proficiency in Apex and Lightning Web Components (LWC) using JavaScript, HTML, and CSS ~ Proven experience building on Salesforce Experience Cloud ~ Experience in an Agile development environment (... 
    Javascript
    Contract work
    Immediate start
    Remote work

    Insight Global

    Saint Louis, MO
    3 days ago