49 typescript developer jobs at 29 companies in O'Fallon, IL
🚀PromotedHiringCafe
Founding Full-stack / Product Engineer
Cupertino, CA, US
$130k-$300k/yrOn-SiteFull Time
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).
Software Engineer: Full Stack - Python, Java or JavaScript/TypeScript (TS/SCI Clearance Required)
Alexandria or Chantilly or Englewood or Gaithersburg or Saint Louis or Tucson
OnsiteFull Time
North Point Technology: Technology services and engineering for federal government missions.
Active TS/SCI clearance with polygraph ability, Bachelor's in CS or related, proficiency in Python/Java/JavaScript/TypeScript, cloud (AWS/Azure), containers, CI/CD, databases, and secure coding practices.
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.
McCarthy Holdings: National construction specializing in commercial and industrial projects.
3+ YOE3+ years developing integrations and applications using iPaaS (Boomi/Mulesoft/Snaplogic), SQL, JSON/XML, modern stacks (.NET,C#/Node.js/TypeScript/Python/Ruby), DevSecOps practices and cloud platforms (AWS/Azure).
Moneta: Provides independent wealth management and financial advisory services.
3+ YOEBachelor's degree in CS/IT, 3+ years full‑stack development experience with TypeScript, React, React Native, Node.js, RESTful APIs, PostgreSQL; Salesforce experience advantageous; authorized to work in the US.
TypeScript, React, React Native, Node.js, RESTful APIs, Express.js, PostgreSQL, Sequelize ORM, Azure Kubernetes Service (AKS), Docker, CI/CD, Microsoft Fabric, Salesforce, Apex, Visualforce, Lightning Components, SOQL, Salesforce APIs, Microsoft Office, AI/ML
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
5+ YOEBachelor's degree or equivalent, ability to obtain U.S. Secret Clearance, 5+ years software development experience with JavaScript/TypeScript/React and C# or C++, REST API experience, Agile/Jira experience.
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.
McCarthy Building Companies: Performs commercial construction and infrastructure development projects.
3+ YOE3+ years experience with enterprise iPaaS (Boomi/Mulesoft/Snaplogic), strong SQL and API integration skills, JSON/XML knowledge, application development on modern stacks (.NET6+/C#, Node.js/TypeScript, Python, Ruby), DevSecOps familiarity, cloud and container experience, Agile.
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
5+ YOEBachelor's degree or equivalent; 5+ years software development with JavaScript/TypeScript/React/C#/C++; experience with REST APIs, Agile/SAFe, Jira/Azure Devops, Git; ability to obtain U.S. Secret Clearance.
Agile Defense: Provides IT modernization and cybersecurity for federal government agencies.
5+ YOESenior full stack developer with 5+ years of front-end experience using React.js and TypeScript; ability to obtain government clearance; prior DoD experience preferred.
Software Developer II - Provisioning (Full Stack, Front End)
Cedar Rapids or Lake Saint Louis or Mandan
HybridFull Time
NISC: Develops enterprise software for energy and telecommunications cooperatives.
5+ YOE5+ years software development experience; proficient in Angular/TypeScript or GWT, Java, SQL/NoSQL databases, AWS/Kubernetes/Spring Boot, Git and CI tools; Bachelor’s in CS or equivalent preferred.
Software Developer II - Financials (Full Stack, Front End)
Cedar Rapids or Lake Saint Louis or Mandan or United States
HybridFull Time
NISC: Provides enterprise software solutions for utility and broadband cooperatives.
5+ YOE5+ years software development experience; proficiency with Angular, TypeScript, Java, Postgres/Oracle, AWS, Kubernetes, Spring Boot, Kafka, Cassandra, Git; experience with automated testing, microservices, and agentic AI coding tools.
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
5+ YOE5+ years full-stack and enterprise application development; 2+ years AWS and IaC experience; proficiency with React/Vue, backend languages (Java, Python, Go, C++), JavaScript/TypeScript, containerization, and cloud-native patterns; TS/SCI clearance required.
Esri: Developing software for digital mapping and spatial data analysis.
1+ YOE1+ years JavaScript/TypeScript experience, bachelor's in CS/Math/GIS/STEM, strong OOP and software methodology knowledge, ability to maintain US security clearance, Python experience for geoprocessing preferred.
LaunchCode: Nonprofit providing free tech education and job placement services.
5+ YOE5+ years experience building and maintaining production systems; strong Postgres SQL skills; backend language proficiency (Golang preferred; Java/C#/C++/Python valued); front-end experience with Angular, HTML/CSS/JavaScript/TypeScript; cloud and security familiarity.
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
7+ YOEActive Top Secret/SCI with Polygraph, 7+ years full-stack web development, expertise in Angular and TypeScript, HTML5/CSS3, RESTful APIs, and secure SDLC experience.
Geospatial Front End Developer – Multiple Positions at Junior/Mid/Senior Levels
St. Louis or St. Charles or Virginia
OnsiteFull Time
NV5: Provides engineering, consulting, and geospatial solutions for infrastructure projects.
2+ YOEUS citizen with active/current Top Secret clearance (SCI) required; Bachelor’s in CS/GIS/STEM; 2+ years front-end web development using HTML5, CSS3, TypeScript, JavaScript; experience with React/Angular/Vue; strong communication and problem-solving skills.
Syms Strategic Group: Provides IT and professional services to federal government agencies.
8+ YOEU.S. citizenship and Public Trust required. 8+ years software development with strong back-end focus (Java and/or NodeJS), REST API design, Angular front-end, AWS, Git/GitHub, unit/integration testing, and healthcare/EDI experience.
Java, NodeJS, Angular, C#, .Net, TypeScript, Electronic Data Interchange (EDI), XML, JSON, AWS, API Gateway, Lambda, Amazon S3, CloudWatch, Git, GitHub, JUnit, Jest, Docker, ECS, EKS, JIRA, Microsoft Teams