124 application developer jobs at 70 companies in Florissant, MO

1d
Save
Mark Applied
Hide
Application Developer - JavaScript
Charlotte or Louisville or Minneapolis or Olympia or Philadelphia or Redlands or San Antonio or St. Louis or Vienna
$84k-$141k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
2+ YOE2+ years web application development with JavaScript/TypeScript, experience with modern web frameworks, CI/CD, foundational cartography knowledge, bachelor's degree, and ability to travel up to 25–50%.
JavaScript, TypeScript, ArcGIS Maps SDK for JavaScript, React, Angular, Svelte, Vue, WebGL, ArcGIS Experience Builder, CI/CD
3w
Save
Mark Applied
Hide
Application Developer II
St. Louis, Missouri, United States
OnsiteFull Time
McCarthy Holdings
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).
Boomi, Mulesoft, Snaplogic, SQL, JSON, XML, Palantir, .NET 6+, C#, Node.js, TypeScript, Python, Ruby, Ruby on Rails, Sinatra, ActiveRecord, CI/CD, DAST, SAST, SCA, Checkmarx, OWASP, GitHub, Snyk, Terrascan, Terraform, SFTP, PGP, AWS, Azure, Microsoft Office 365
3w
Save
Mark Applied
Hide
Application Developer II
St. Louis, Missouri, United States
OnsiteFull Time
McCarthy Building Companies
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.
Boomi, Mulesoft, Snaplogic, Palantir, .NET 6+, C#, Node.js, TypeScript, Python, Ruby, Ruby on Rails, Sinatra, ActiveRecord, SQL, JSON, XML, CI/CD, DAST, SAST, SCA, Checkmarx, OWASP, GitHub, Snyk, Terrasan, Terraform, SFTP, PGP, AWS, Azure, Microsoft Office 365
1mo
Save
Mark Applied
Hide
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
1w
Save
Mark Applied
Hide
Junior Application Developer
Denver or St. Louis or Sterling or Springfield
$53k-$106k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
0+ YOEBachelor's (or equivalent),0–3 years software development experience,Java and/or Python,web development and relational DB familiarity,TS/SCI clearance with polygraph,teamwork and problem-solving skills.
Java, Python, ArcGIS, GeoServer, OpenLayers, Cesium, Git, CI/CD
3mo
Save
Mark Applied
Hide
Epic Tapestry Application Developer
San Francisco or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or New York or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Seattle or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$48-$58/hr OnsiteFull Time
Accenture
AccentureNYSE: ACN: Global provider of management consulting and technology services.
5+ YOE5+ years experience with healthcare EHR/Epic, Tapestry UM Epic certification required, strong Tapestry UM and Claims implementation experience, High School diploma/GED, strong interpersonal and clinical workflow skills.
Epic, Tapestry UM, EMR, EHR
4mo
Save
Mark Applied
Hide
Application Engineer
Saint Louis, Missouri, United States
OnsiteFull Time
Ramco Innovations
Ramco Innovations: A high-tech distributor delivering innovative products and value-added solutions to customers across multiple industries.
1+ YOEExperienced self-starter; identify, size, select, and quote motion control solutions; BS degree preferred; 1-3 years related experience; valid driver's license and MVR.
Automation, Sensors, PLC, HMI, Motors and Drives, Motion controllers, AC/DC drives and motors, Feedback devices
3w
Save
Mark Applied
Hide
Application Engineer
Hoffman Estates or St. Louis
OnsiteFull Time
Nidec
NidecTokyo Stock Exchange: 6594: Manufactures electric motors and electronic components for industrial applications.
Experience in motion control, motor drives, system integration, PLC programming, and customer-facing technical support; familiarity with industrial communication protocols and ROS; bachelor's degree or technical degree preferred.
CANopen, EtherCAT, PROFINET, EtherNet/IP, PLC, ROS (Robot Operating System), SolidWorks
2mo
Save
Mark Applied
Hide
Application Engineer
Washington, Missouri, United States
OnsiteFull Time
Clemco Industries
Clemco Industries: Manufacturer of abrasive blasting and surface preparation equipment.
3+ YOEBachelor’s in engineering; 3+ years LEAN manufacturing experience; AutoCAD; proposal writing and cost estimation; strong communication.
AutoCAD
2d
Save
Mark Applied
Hide
ERP Application Developer
St. Louis or Leetonia or Wellsville
$100k-$120k/yr HybridFull Time
Pennex Aluminum
Pennex Aluminum: Manufacturer of custom aluminum extrusions and fabricated components.
Hands-on D365 and X++ development experience, Visual Studio, source control, DevOps pipelines, integrations, strong problem-solving and communication skills; must be eligible to work in the U.S.
Microsoft Dynamics 365 Finance & Supply Chain, X++, Visual Studio, Power BI, Electronic Reporting, SSRS, Data Lake, Fabric, C#, JavaScript, T-SQL, WCF, Outlook, Excel, CodeX, Claude, Microsoft Power Platform
2mo
Save
Mark Applied
Hide
Field Application Engineer
Saint Louis, Missouri, United States
OnsiteFull Time
ABB
ABBSIX Swiss Exchange: ABBN: Provides electrification and automation technologies for global industries.
7+ YOEBachelor’s degree in Engineering; minimum 7 years field application/field services experience; electrical knowledge of circuit breakers and switch gear; strong problem-solving; US work authorization.
2d
Save
Mark Applied
Hide
Service Application Engineer - Central (69301)
Cincinnati or Columbus or Parma or Fort Wayne or Indianapolis or Novi or Grand Rapids or Chicago or Appleton or Milwaukee or Duluth or Minneapolis or Kansas City or St. Louis or Des Moines
$108k-$158k/yr HybridFull Time
Eaton
EatonNYSE: ETN: Manages electrical, hydraulic, and mechanical power systems globally.
3+ YOEBachelor's in engineering or 7+ years field service/proposal experience in electrical services; 3+ years in application engineering/proposal development; unrestricted driver's license; able to work in US without sponsorship.
1mo
Save
Mark Applied
Hide
Application Software Engineer (Experienced or Senior), Phantom Works
Berkeley, Missouri, United States
$127k-$217k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
3+ YOEBachelor's degree; active Secret clearance with ability to obtain Top Secret & Special Program Access; 3+ years experience with C++, C#, Linux, git, software architecture and TCP/UDP networked applications.
C++, C#, Linux, git, TCP, UDP
1mo
Save
Mark Applied
Hide
Application Software Engineer (Experienced or Senior), Phantom Works
Berkeley, Missouri, United States
$127k-$217k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
3+ YOEBachelor's degree; active U.S. Secret security clearance with ability to obtain Top Secret & Special Program Access; 3+ years experience in C++, C#, Linux, git, software architecture, and TCP/UDP networked applications.
C++, C#, Linux, git, TCP, UDP, CodeVue
2mo
Save
Mark Applied
Hide
AI-Application Security Engineer
Saint Louis, Missouri, United States
OnsiteFull Time
Stifel Financial
Stifel FinancialNYSE: SF: Financial services firm providing wealth management and investment banking.
2+ YOEExperience building and securing AI-enabled applications; hands-on in app security, AI security risks, vulnerability management, and secure-by-design practices.
C#, Angular, Python, AWS, GitHub, SAST, DAST, SCA, API Security, Mobile Security, Red Team, AI Tools
2w
Save
Mark Applied
Hide
Senior Application Engineer I
Chicago or Dallas or Nashville or Raleigh or Boston or Louisville or St. Louis or Costa Mesa or Morristown
HybridFull Time
Schneider Electric
Schneider ElectricEuronext Paris: SU: Provider of energy management and industrial automation solutions.
4+ YOEBachelor’s or Master’s in Electrical Engineering/Power Systems, 4+ years in protection, control, and automation projects, knowledge of LV/MV power systems, protection relays, and communication protocols.
Modbus, DNP, IEC61850
1w
Save
Mark Applied
Hide
Application Infrastructure Engineer
Fort Meade or Pensacola or Mechanicsburg or San Antonio or Scott AFB or Colorado Springs or Tinker AFB or Hill AFB
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
5+ YOE5+ years designing, deploying, and maintaining VMware on‑prem private cloud environments, NSX/NSX‑T, vSphere administration, server and networking management; Secret clearance and HS diploma/GED required.
VMware, ESXi, vCenter, vSAN, NSX, NSX-T, vSphere, Windows, Linux, macOS, Shell, PowerShell, Python, Cisco, Juniper, Infrastructure as Code, vSphere administration, virtual environments
2mo
Save
Mark Applied
Hide
AI-Application Security Engineer
Saint Louis, Missouri, United States
OnsiteFull Time
Stifel
StifelNYSE: SF: Global wealth management and investment banking firm.
2+ YOEMinimum 2+ years information security or software development; bachelor’s degree in CS/IS/Cybersecurity/Software Engineering; CISSP/CSSLP/GIAC or similar preferred.
SAST, DAST, SCA, API security, Mobile security, Python, AWS, CI/CD, GitHub, C#, Angular
1mo
Save
Mark Applied
Hide
Field Application Engineer -- Southeast Region
Chesterfield or Salisbury or Durham or Fayetteville or Richmond or Dalton or Bayport or South Carolina or Florida or Virginia or Maryland or United States
FieldFull Time
Qnity Electronics
Qnity ElectronicsNYSE: Q: Manufactures materials and solutions for the semiconductor industry.
6+ YOEBachelor's in engineering, 6+ years in design/manufacturing of electronic devices, thermal/EM/mechanical/electrical design experience, SolidWorks/Abaqus/HFSS/Icepak/COMSOL proficiency, FEA understanding, strong customer-facing and project management skills, ~50% travel.
SolidWorks, Abaqus, HFSS, Icepak, COMSOL
3d
Save
Mark Applied
Hide
Software Developer / Application & Web Support Lead
Scott Air Force Base, Illinois, United States
OnsiteFull Time
EPS Corporation
EPS Corporation: Provides engineering, logistics, and technical solutions to federal agencies.
5+ YOE5+ years SharePoint Online/web application development and sustainment; DCWF Work Role 212 proficiency; DoDM 8140.03 foundational qualification; final SECRET clearance; hands-on Power Platform, SharePoint Online, Nintex, Java/Oracle, ColdFusion, .NET/SQL; 508-compliant application delivery.
SharePoint Online, Microsoft Power Platform, Nintex, Java, Oracle, ColdFusion, .NET, SQL, Power BI