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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

    Fairview Heights, IL
    1 day 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
    26 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
    4 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

    Scott Air Force Base, IL
    7 days 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
    3 days 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
    1 day 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
    17 hours ago

  • 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
    17 hours ago

  • 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
    17 hours ago

  • 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
    17 hours 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
    17 hours 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
    5 days ago

  • 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
    2 days 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

  • 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
    17 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
    2 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
    12 days ago

  • AI Engineer

    $82.1k - $172.4k

     ...implementing AI solutions in live production systems ~ Strong proficiency in multiple programming languages (e.g., Python, Java, C++, JavaScript) ~ Expertise in cloud services, particularly Azure and AWS ~ Extensive knowledge of API development and management ~... 
    Javascript
    Full time
    Contract work
    Work experience placement
    Flexible hours

    CACI International

    O Fallon, IL
    3 days ago

  • MSS Developers (Various Locations)

     ...data environments and classified networks Prior Combatant Command support Solid Python and SQL skills with familiarity in JavaScript/TypeScript   Working Conditions Must be able to work onsite in a SCIF Our Core Values Employees of Agile Defense are our... 
    Javascript

    Agile Defense

    O Fallon, IL
    27 days ago

  • SAP ABAP Senior Developer

    $90.3k - $189.6k

     ...OData services User Exits BADIs and Batch Programming SAP UI5 related technologies and development tools (e.g.: HTML5 CSS JavaScript JQuery VSCode Eclipse etc.) Experience with SAP S/4 HANA - Data Modeling using HANA Studio ABAP Development Tools (ADT) Code Performance... 
    Javascript
    Full time
    Contract work
    Work experience placement
    Local area
    Flexible hours

    CACI

    Scott Air Force Base, IL
    17 days ago

  • ServiceNow ITSM Developer

    $75.2k - $158.1k

     ...and ITSM applications Familiarity with ITIL processes Experience with Service Catalog development and Flow Designer Basic JavaScript for business rules and client scripts Knowledge of SLA management notifications UI/data policies and ACLs Understanding of... 
    Javascript
    Full time
    Contract work
    Work experience placement
    Local area
    Flexible hours

    CACI

    Scott Air Force Base, IL
    16 hours ago

  • 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
    4 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
    1 day 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
    1 day 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
    21 days ago

  • Mid-Level Software and Database Developer (Hybrid)(Secret Clearance Required)

     ...development, or closely related technical experience. · Proficiency in one or more programming languages such as Java, C#, Python, JavaScript, TypeScript, or comparable languages. · Experience developing RESTful APIs, web services, microservices, or enterprise... 
    Javascript
    For contractors
    Flexible hours

    Solerity

    Scott Air Force Base, IL
    23 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
    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
    6 hours 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,... 
    Javascript
    Full time
    Contract work
    Interim role
    Remote work

    Leidos

    Shiloh, IL
    6 hours ago