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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

    Glen Carbon, IL
    2 days 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
    1 day ago

  • 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
    2 days ago

  • 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
    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
    2 days ago

  • Staff Software Development Engineer

    $106.61k - $284.28k

     ...strong focus on full-stack development, system architecture, and scalable applications. Frontend Expertise: Mastery of modern JavaScript/TypeScript frameworks (e.g., React, Angular, or Vue) and experience with complex state management and data visualization... 
    Javascript
    Hourly pay
    Full time
    Temporary work
    Local area

    CVS Health

    Alton, IL
    22 hours 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
    3 days 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
    13 days ago

  • React Native Developer

     ...fastlane. Good experience in deploying the applications on Apple AppStore and Google Playstores. Proven experience developing in JavaScript and TypeScript languages. Good foundation at working with third-party libraries (Redux, RxJS) and debugging dependency conflicts.... 
    Javascript

    Software Technology Inc

    Saint Louis, MO
    2 days ago

  • Lead Application Developer

    $120k

     ...advancements in AWS 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
    3 days ago

  • Mid Software Developer

     ...automate AWS and RDS tasks Experience using AWS SDK API tools to build on AWS. Lambdas, EC2, and React. Experience implementing JavaScript, Java, and SQL ~ Active TS/SCI Clearance   Preferred Qualifications: ~ Master's Degree with 2+ years of prior relevant... 
    Javascript
    Work at office
    Work from home
    Home office

    Chenega Corporation

    O Fallon, IL
    27 days ago

  • Senior Support Engineer

     ...platforms integrate with enterprise applications ~ Working knowledge of modern application technologies such as React, Node.js, and JavaScript ~ Experience supporting enterprise applications in production environments ~ Strong analytical, problem-solving, and... 
    Javascript
    Weekly pay
    Contract work
    Local area
    Remote work

    Brooksource

    Saint Louis, MO
    6 hours ago

  • Advanced Software Engineer

    $85k - $115k

     ...with experience maintaining both legacy and modern applications.Solid understanding of front-end technologies including HTML, CSS, JavaScript, and React.JS, and legacy Angular JS.Familiarity with containerization technologies such as Docker and orchestration tools like... 
    Javascript
    Work at office
    Remote work
    Flexible hours

    RMA PA

    Saint Louis, MO
    2 days ago

  • 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
    2 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
    1 day ago

  • Full Stack Engineer

     ...stack 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
    5 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
    3 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
    22 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
    2 days ago

  • Teamcenter Developer

     ...associated data models to facilitate effective integrationExperience in Windows environment, Java, TC XML, PLM XML, SQL, C, C++, JavaScript, or PERL and exposure to JBoss, IDE, ITK Server side codingexperience, Oracle Technical and Performance skillsEclipse IDE Framework... 
    Javascript
    Permanent employment
    Work experience placement

    Tech Tammina

    Saint Louis, MO
    2 days ago

  • Advanced Software Engineer

    $103k - $155k

     ...manage and process data at scale across multiple platforms ~ Build full-stack features across .NET/C# backend services, React/JavaScript frontends, and SQL data layers to support core product workflows ~ Build and maintain integrations with external systems and... 
    Javascript
    Full time

    Relativity

    Alton, IL
    1 day ago

  • Intelligence Operations Integrator

     ...fusing intelligence capabilities in support of operations Technical background with working knowledge of Python, Java, and/or JavaScript/typescript Strong communication skills with the ability to break down, explain, and demonstrate complex concepts in an easy-... 
    Javascript
    Contract work
    For contractors

    Barbaricum

    Scott Air Force Base, IL
    4 days ago

  • Software Engineer - Full Stack & AI-Enabled Development

     ...Design, develop, test, deploy, and support modern full-stack applications. Build front-end applications using React and modern JavaScript/TypeScript frameworks. Develop APIs, services, and application back ends using .NET / C# . Design and work with... 
    Javascript
    Full time
    For contractors
    Flexible hours

    Clayco

    Saint Louis, MO
    3 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
    Full time
    Immediate start

    Reinventing Geospatial, Inc. (RGi)

    Saint Louis, MO
    1 day 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
    1 day ago

  • Senior Full Stack Developer

    About the product Brand licensing is a massive global industry that still runs on introductions and paperwork. At Negosh, we're rebuilding it around AI. Brands and manufacturers find each other on our marketplace, an in-app assistant walks them through structuring and closing...
    Javascript
    Remote work

    Negosh

    Saint Louis, MO
    1 day 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
    16 days ago

  • Software Developer

    $87.1k - $157.45k

     ...integration experience with JSON/REST web services, as well as the parsing, generation and validation of JSON. Working knowledge of JavaScript.Experience designing, developing and deploying software in a cloud environment (AWS is a plus).Experience designing, building and... 
    Javascript
    Full time
    Contract work
    Interim role
    Remote work

    Leidos

    Shiloh, IL
    1 day 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
    3 days ago

  • Tech Lead

     ...sessions. Solid experience with RESTful APIs and JSON/SOAP based API with Java. Experience in web technologies such as JavaScript, JQuery, AngularJS, CSS, CSS 3.0, cross browser compatibility, GWT & HTML. Ability to debug server-side API calls, and contribute... 
    Javascript

    Procyon TS

    Saint Louis, MO
    5 days ago