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59 web developer jobs at 33 companies in O'Fallon, MO

PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Help us build a 100× better job search engine. We need a full-stack engineer with great taste, sharp fundamentals, and a track record of shipping polished product on React/Next.js plus a real backend (Firebase, Elasticsearch, Redis, Stripe).
React, Next.js, TypeScript, Firebase, Elasticsearch, Redis, Stripe
Help us #BeatIndeed & #BeatLinkedIn
2d
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Software/Web Developer
Saint Louis, Missouri, United States
OnsiteFull Time
Kentro
Kentro: Provider of digital and IT services for federal agencies.
3+ YOEBachelor's degree or equivalent experience, 3+ years software/web development, experience with JavaScript/TypeScript/Python/Java/C#/PHP and React/Angular/Vue, RESTful APIs and databases, strong problem-solving and communication.
JavaScript, TypeScript, Python, Java, C#, PHP, React, Angular, Vue, RESTful APIs, SQL, NoSQL, AWS, Azure, Google Cloud, CI/CD, Docker, Kubernetes
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1w
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Web Software Developer
Scott Air Force Base, Illinois, United States
$120k-$160k/yr OnsiteFull Time
SAIC
SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.
10+ YOE10+ years experience, DoD Top Secret with SCI eligibility, CompTIA Security+, experience with Node.js, React, Strapi, AWS, AppStream, Confluence, JavaScript, HTML, CMS, and technical writing.
Node.js, React, AppStream, Confluence, JavaScript, HTML, Strapi, AWS, ServiceNow, Jira, Microsoft Word, Microsoft PowerPoint, Microsoft Visio, Microsoft Project, Microsoft Excel
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1w
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Web Software Developer
Scott AFB, Illinois, United States
OnsiteFull Time
SAIC
SAICNASDAQ: SAIC: Provides government and defense clients with technology and engineering services.
10+ YOE10+ years experience, DoD Top Secret clearance with SCI eligibility, CompTIA Security+, Node.js/React/JavaScript/HTML, Strapi CMS, AWS, AppStream, Confluence, MS Office proficiency, technical writing, and configuration/change management for government customers.
Node.js, React, AppStream, Confluence, JavaScript, HTML, Strapi, AWS, Microsoft Word, Microsoft PowerPoint, Microsoft Visio, Microsoft Project, Microsoft Excel, ServiceNow, Jira
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2w
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Web Design Student Employee
St. Louis, Missouri, United States
$15/hr OnsitePart Time
Maryville University
Maryville University: Private university offering undergraduate and graduate degree programs.
Experience with HTML and front-end development, responsive and cross-browser design; ability to work independently and meet deadlines. Applicants must be work-study eligible with a work-study award.
HTML, WordPress
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1mo
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Application Developer II
Bridgeton, Missouri, United States
OnsiteFull Time
Cass Information Systems
Cass Information SystemsNASDAQ: CASS: Provides invoice processing and payment services for large corporations.
3+ YOE3+ years developer experience with C#, Visual Studio, SQL 2012+, knowledge of OOP, Core/Web/MVC, microservices, Microsoft Azure, DevOps/Agile, telecom billing standards; strong communication; Bachelor's in CS or equivalent.
C#, Microsoft Visual Studio, SQL 2012+, Core, Web, MVC, Micro Services Architecture, Microsoft Azure, DevOps, Agile
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4w
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Geospatial Developer
Saint Louis or Belleville
OnsiteFull Time
NV5
NV5: Provides engineering, consulting, and geospatial solutions for infrastructure projects.
3+ YOEBachelor's in CS/Geography/GIS, 3+ years web application development, 1+ year ESRI geospatial app development, proficiency with HTML/HTML5/CSS/Python/JavaScript/.NET/JSON, ArcGIS Server, PostgreSQL/Oracle; U.S. citizenship and ability to obtain DoD clearance.
ESRI, Experience Builder, ESRI ArcGIS, ArcGIS Server, PostgreSQL, Oracle, HTML, HTML5, CSS, Python, JavaScript, .NET, JSON, AWS, Docker
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4w
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Geospatial Developer
Belleville or Saint Louis
OnsiteFull Time
NV5
NV5: Provides engineering, testing, inspection, and infrastructure consulting services.
3+ YOEBachelor's in CS/Geography/GIS, 3+ years web application development including 1+ year developing geospatial/ESRI apps; proficiency with HTML/HTML5/CSS, Python, JavaScript, .NET, JSON; experience with ArcGIS Server, PostgreSQL/Oracle; U.S. citizen eligible for DoD clearance.
Esri Experience Builder, ArcGIS Server, PostgreSQL, Oracle, HTML, HTML5, CSS, Python, JavaScript, .NET, JSON, AWS, Docker, REST, OGC, DevSecOps
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3mo
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Full Stack Developer
St. Louis, Missouri, United States
OnsiteFull Time
Stereotaxis
StereotaxisNYSE American: STXS: Manufactures robotic surgical systems for endovascular and cardiac procedures.
3+ YOEBS in CS or related field; 3+ years development; Flutter and ASP.NET; web/mobile tech; CI/CD; US work authorized.
Flutter, ASP.NET, SignalR, WebRTC, C++, Docker, Linux, SQL, Azure, EF Core, Kubernetes, LiveKit
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2w
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Salesforce Software Developer
McLean or Las Vegas or Orlando or Annapolis or Portland or Boston or Huntsville or Dayton or Atlanta or Colorado Springs or New York City or Groton or Salt Lake City or Fort Leavenworth or Jersey City or Omaha or Bismarck or Sacramento or New Orleans or Indianapolis or Helena or Des Moines or Jackson or Hanover or Austin or Boise or Tucson or Fayetteville or Chicago or St. Louis or Lansing or Pittsburgh or Philadelphia or Augusta or Oklahoma City or Brooklyn Park or Charleston or Newport or Cheyenne or Martinsburg or Cleveland or Little Rock or Madison or Albany or Seattle or Washington, DC or Denver or Brooklyn Park
$69k-$158k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
Experience developing on the Salesforce platform (Apex, JavaScript, Lightning Web Components), Git-based workflows, Salesforce Platform Developer I certification, HS diploma/GED, ability to obtain Public Trust or Suitability/Fitness determination.
Apex, JavaScript, Lightning Web Components, Git, GitHub, Copado, Salesforce DX, Flosum, Java, Python, C#, Kotlin, C/C++, HTML, CSS, SQL
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3mo
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Software Developer
St. Louis, Missouri, United States
OnsiteFull Time
Bana Solutions
Bana Solutions: Provides software engineering, cybersecurity, and data solutions for government agencies.
4+ YOE5+ years in web applications; 2+ years cloud experience (AWS/Azure); modern web frameworks; HTML/JavaScript; Linux/Windows; OOP; performance; dev tools; agile; Bachelor's in CS or related field.
AWS, Azure, JavaScript, HTML, JQuery, Git, Gitlab, Jira, Linux, Windows, Node, Angular, React, Vue
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1mo
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Front End Developer
Springfield or Vienna or St. Louis
OnsiteFull Time
INCATech
INCATech: Award-winning small business delivering geospatial information systems and cloud/Platform services.
2+ YOE2+ years of front-end web development; HTML5, CSS3, TypeScript, JavaScript; React/Angular/Vue; GIS knowledge a plus; bachelor's in CS/math/GIS/STEM.
HTML5, CSS3, TypeScript, JavaScript, React, Angular, Vue, GIS, Docker, Kubernetes, Azure, AWS, GCP, CI/CD
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1mo
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Software Engineer
Earth City, Missouri, United States
HybridFull Time
MiTek
MiTekNYSE: BRK-B: Provides software and automation for the building industry.
2+ YOEBachelor's in CS or related, 2+ years professional .NET/C# experience, desktop/web app development, Angular and SQL Server proficiency, Agile experience, strong communication skills.
.NET, C#, Angular, Microsoft SQL Server, GitHub Copilot, Git, SonarQube, OPC UA, Mass Transit, RabbitMQ, Microsoft Azure
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3w
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Software Engineer
Denver or Springfield or Sterling or St. Louis
$82k-$172k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOEBachelor's in CS or related, 5+ years software development experience, Java and/or Python proficiency, experience with web frameworks and databases, TS/SCI clearance with polygraph required, Agile and secure coding experience.
Java, Python, ArcGIS, GeoServer, OpenLayers, Leaflet, Cesium, Docker, Kubernetes, CI/CD
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1mo
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Associate Software Engineer
Maryland Heights, Missouri, United States
$82k-$94k/yr HybridFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
1+ YOEBachelor's degree, ability to obtain U.S. Secret Clearance, 1+ year C# .NET development experience, familiarity with web technologies and Azure DevOps, strong communication and critical thinking skills.
C#, .NET, HTML, CSS, Azure DevOps, SAFe Agile
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3mo
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SOFTWARE ENGINEER SR
Dayton or Huntsville or St. Louis or Remote
HybridFull Time
Ignite Fueling Innovation
Ignite Fueling Innovation: Provides professional services and technical solutions for federal agencies.
5+ YOEBachelor's degree in CS/CE or related field; 5 years web development; React/Angular; REST; Golang/Node/Python; Linux; Docker; Git; JIRA; US citizenship with TS/SCI clearance.
React, Angular, REST, Golang, NodeJS, Python, Linux, Docker, Git, JIRA, Kubernetes, Istio, Helm, Gitlab CI, Jenkins, Elastic, MongoDB
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1w
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Software Engineer I
Fenton, Missouri, United States
HybridFull Time
Maritz
Maritz: Provides business incentive, event, and loyalty management solutions.
1+ YOE1-2 years relevant experience or equivalent practical experience; knowledge of web frameworks, OOP, REST services, databases, basic cloud (AWS/GCP/OCI), secure coding, and AI-assisted development tools.
GitHub Copilot, Claude, AWS, GCP, OCI, REST
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3w
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ServiceNow Developer
McLean or Tysons Corner or Orlando or Charlotte or Detroit or Mitchell or Boulder or Philadelphia or Miami or Boston or Burlington or El Segundo or Austin or Houston or San Antonio or Columbia or Jacksonville or Lewisville or Salt Lake City or New York City or Fairview Heights or Arlington or Sacramento or Tampa or Beavercreek or Folsom or Chicago or Huntsville or Atlanta or Los Angeles
$113k-$188k/yr HybridFull Time
Guidehouse
Guidehouse: Provides management and technology consulting services to diverse organizations.
3+ YOEUS citizen with ability to obtain Public Trust, bachelor\u0002s degree, 3+ years professional experience, ServiceNow expertise (GRC, SPM, ITSM, App Engine, Scoped Apps), JavaScript/Glide/AngularJS scripting, Flow Designer, IntegrationHub, web services (SOAP/REST), SDLC and Agile experience.
ServiceNow, GRC, SPM, ITSM, App Engine, Scoped Apps, Mid-Server, SOAP, REST, JavaScript, Glide, AngularJS, Flow Designer, IntegrationHub, ServiceNow Automated Test Framework (ATF)
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3w
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Engineer IV, Client Products and Services Portfolio
St. Louis or Tempe
HybridFull Time
Edward Jones
Edward Jones: Offers investment management and financial planning through local branches.
5+ YOE5+ years web application development experience; proficiency with Spring, REST, React, JavaScript/jQuery, Thymeleaf, JPA, Kubernetes, JUnit, Selenium, SoapUI; familiarity with Kafka, MongoDB, Oracle DB, MS SQL, Linux; DevOps/CI/CD/Agile beneficial; tech lead and mentoring experience.
Spring, REST, React, JavaScript, jQuery, Thymeleaf, JPA, Kubernetes, JUnit, Selenium, SoapUI, Kafka, MongoDB, Oracle DB, Spring Boot, MS SQL, Linux, CI/CD, DevOps, Agile
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6d
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DevOps Engineer 673
Herndon or St. Louis
OnsiteFull Time
Freedom Technology Solutions Group
Freedom Technology Solutions Group: Provides geospatial and software engineering solutions for national security agencies.
3+ YOEActive security clearance with polygraph,3+ years DevOps experience,Python/MATLAB or similar scripting,Amazon Web Services (AWS) experience; experience with automation and virtualization preferred.
Python, MATLAB, Amazon Web Services (AWS), VMware, Bash, PowerShell, Terraform, CloudFormation, Ansible, Jenkins, Active Directory, DNS, DHCP
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2mo
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Software Engineer - Frontend
Florissant, Missouri, United States
OnsiteFull Time
Augustine Institute
Augustine Institute: Provides Catholic theological education and media for faith formation.
Extensive experience building frontend architecture and design systems; React/Next.js web, React Native/Expo mobile; UI/UX optimization; scalable deployments; AI/SEO integration.
React, Next.js, React Native, Expo, Tailwind CSS, LaunchDarkly, New Relic, Mixpanel, Mux, Cloudflare Pages, Vercel, AWS Amplify, ECS, Fargate, EC2, S3, CloudFront, AI/SEO tooling
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