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355 software developers jobs at 115 companies in Florissant, MO

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Software Developer II - Connect Service Software (Front End, Billing Software)
Cedar Rapids or Lake Saint Louis or Mandan
HybridFull Time
NISC
NISC: Provides enterprise software solutions for utility and broadband cooperatives.
5+ YOE5+ years software development experience; proficiency with Angular/TypeScript, Java, RDBMS, automated testing, cloud and container technologies; bachelor's degree preferred.
Angular, TypeScript, Java, Postgres, Oracle, AWS, Kubernetes, Spring Boot, Kafka, Cassandra, Git, JIRA, Confluence, Bitbucket, Bamboo, generative AI
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1w
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Software Engineer
St. Louis, Missouri, United States
$100k/yr HybridFull Time
GardaWorld
GardaWorld: Provides physical security, cash management, and integrated risk services.
5+ YOE5+ years software development with cloud/data engineering on Microsoft Azure, production ownership, Python/TypeScript, SQL/Snowflake, Terraform, Git, strong communication and problem-solving.
Microsoft Azure, Azure Functions, Python, TypeScript, Node.js, Snowflake, SQL Server, T-SQL, SQL, Terraform, Datadog, Git, Microsoft Graph, Checkov, Event Grid, Service Bus, VNet, OAuth 2.0, PGP, S/MIME
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2w
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Software Engineer
Chesterfield or Greenwood Village
$85k-$140k/yr HybridFull Time
MiTek
MiTekNYSE: BRK-B: Provides software and automation for the building industry.
2+ YOEBachelor's in CS or related, 2+ years software development experience, experience with C#/.NET, SQL Server, web fundamentals, Git, testing, and strong communication and problem-solving skills.
C#, .NET, SQL Server, HTML, CSS, JavaScript, Git, TypeScript, Angular, React, REST APIs, Azure DevOps, Azure, AWS, Application Insights, DataDog
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2mo
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Lead Software Engineer
O'Fallon, Missouri, United States
$140k-$231k/yr OnsiteFull Time
Mastercard
MastercardNYSE: MA: Global payment processing and financial technology service provider.
Lead software design and architecture; build internal developer platforms; ensure secure, scalable, and high-performance software.
React, TypeScript, Backstage, AWS, Kubernetes, Terraform, CloudFormation, Splunk, CI/CD
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3w
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Software Engineer
Maryland Heights, Missouri, United States
$105k-$128k/yr HybridFull Time
Boeing
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.
JavaScript, TypeScript, React, C#, C++, REST, Jira, Jira Align, Azure Devops, Git, .NET MAUI, SAFe Agile
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2mo
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C++ Software Engineer
St. Louis, Missouri, United States
OnsiteFull Time
London Stock Exchange Group
London Stock Exchange GroupLondon Stock Exchange: LSEG: Provides financial market infrastructure and global data analytics services.
2+ YOE2+ years C++ experience; OO design; full software life cycle; team collaboration; test-driven development.
C++, Linux, Python, Unix shell, JavaScript, Node.js
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3w
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Software Engineer
Maryland Heights, Missouri, United States
$105k-$128k/yr HybridFull Time
Boeing
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.
JavaScript, TypeScript, React, C#, C++, REST, SAFe, Jira, Jira Align, Azure Devops, Git, .NET MAUI
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2mo
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Software/Web Developer
Saint Louis, Missouri, United States
OnsiteFull Time
Kentro
Kentro: Provides digital transformation and IT services to federal agencies.
3+ YOE3+ years software or web development experience; bachelor’s degree or equivalent; proficiency with modern languages and frameworks; strong problem-solving and communication skills.
JavaScript, TypeScript, Python, Java, C#, PHP, React, Angular, Vue, AWS, Azure, Google Cloud, CI/CD, Docker, Kubernetes, SQL, NoSQL
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14h
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Software Developer II - Utility Billing Software (Front End, Angular)
Cedar Rapids or Lake Saint Louis or Mandan
HybridFull Time
NISC
NISC: Develops enterprise software for energy and telecommunications cooperatives.
5+ YOE5+ years software development experience; proficient with Angular/TypeScript, Java, RDBMS, cloud and container tooling; strong testing, Git, and collaboration skills.
Angular, TypeScript, Java, Postgres, Oracle, AWS, Kubernetes, Spring Boot, Kafka, Cassandra, SQL, Git, JIRA, Confluence, Bitbucket, Bamboo, Automated Testing, Generative AI, Agentic AI
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1mo
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Software Engineer Co-Op
St. Louis, Missouri, United States
OnsitePart Time, Internship
Nidec
NidecTokyo Stock Exchange: 6594: Manufactures electric motors and electronic components for industrial applications.
Currently enrolled in a bachelor's program in software engineering, computer science, or similar; available 25–29 hours/week while attending school; support testing, development, assembly, and lab activities for software controls.
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2w
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Software Developer 2 (Associate)
O'Fallon, Illinois, United States
HybridFull Time
UNCOMN
UNCOMN: A technology delivering secure software solutions for public and private sector clients.
2+ YOE2+ years software development experience, backend/REST API experience, Java and Azure familiarity, Agile/Jira experience, eligible for U.S. Secret clearance, strong communication and problem-solving skills.
Java, Microsoft Azure, RESTful APIs, Jira
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2w
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Sr. Software Engineer
O'Fallon, Missouri, United States
$100k-$110k/yr OnsiteFull Time
Tech Mahindra
Tech MahindraNational Stock Exchange of India: TECHM: Global provider of information technology and business process services.
5+ YOEProven Java 8 experience with Spring Boot, Microservices, Angular JS, testing frameworks (JUnit, Mockito), cloud (PCF or Azure), Bachelor's degree, and 5+ years software development experience.
Java 8, Spring Boot, Microservices, Angular JS, JUnit, Mockito, PCF, Azure, Docker, Kubernetes, RESTful APIs, SQL, NoSQL
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4w
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Software Developer - Advanced (MO, Saint Louis)
St. Louis, Missouri, United States
OnsiteFull Time
RiVidium
RiVidium: Provides cybersecurity software and IT services to federal agencies.
Requires RMF knowledge, experience with Python, HTML, CSS, JavaScript, React, Tableau, database development, and secure full‑stack software development; baccalaureate degree required.
Python, HTML, CSS, JavaScript, React, Tableau
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2w
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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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1mo
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Software Engineer - Intermediate
St. Louis, Missouri, United States
HybridFull Time
Equifax
EquifaxNew York Stock Exchange: EFX: Provides consumer credit reporting and data analytics services globally.
2+ YOEBachelor's degree or equivalent, 2+ years software development experience with Java, Python, and JavaScript; experience with cloud (GCP/AWS/Azure), build tools (Maven/Gradle), frontend (HTML/CSS), CI/CD, and AI-assisted coding tools (e.g., GitHub Copilot).
GitHub Copilot, Java, Python, JavaScript, Maven, Gradle, HTML, CSS, JUnit, Git, GitHub, Jenkins, Atlassian, Java 17, Spring Boot, GCP, AWS, Azure, CI/CD, Microservices, Data Fabric, CSA Toolset
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1mo
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Sr Software Developer - API Integration
Creve Coeur or St. Louis
$110k-$130k/yr HybridFull Time
First Bank
First Bank: A family-owned bank providing financial solutions to businesses and individuals.
5+ YOE5+ years software development experience; hands-on Power Apps/Power Automate and Power Platform, REST/JSON API integration, Microsoft Azure, CI/CD and DevOps, Dataverse, Infrastructure as Code, and data mapping; knowledge of data privacy.
Microsoft Power Platform, Power Apps, Power Automate, Dataverse, Microsoft Azure, RESTful APIs, JSON, CI/CD, DevOps, Infrastructure as Code, ServiceNow, RPA, Microsoft SharePoint
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1mo
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VP, Software Engineering
Hazelwood or St. Louis
$250k-$335k/yr OnsiteFull Time
bioMérieux
bioMérieuxEuronext Paris: BIM: Provides diagnostic solutions for infectious diseases and industrial microbiology.
12+ YOE8+ MgmtBachelor's in CS/Software/Electrical; 12+ years software development including 8+ years leading teams; agile, embedded-to-cloud product experience; regulated-industry experience desired; ~15% travel; strong communication and MS Office skills.
Microsoft Outlook, Microsoft Teams, Microsoft Word, Microsoft Excel
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1mo
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Senior Software Engineer
O'Fallon, Missouri, United States
$115k-$184k/yr OnsiteFull Time
Mastercard
MastercardNYSE: MA: Global payment network facilitating electronic transactions and financial services.
3+ YOEBachelor's degree or equivalent, 3+ years software engineering experience (financial services preferred); strong software engineering knowledge, secure solution delivery, SDLC experience, and strong communication and mentoring skills.
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2mo
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Sr. Software Engineer
Hazelwood, Missouri, United States
$82k-$115k/yr HybridFull Time
bioMérieux
bioMérieuxEuronext Paris: BIM: Develops and manufactures in vitro diagnostic solutions for laboratories.
7+ YOESenior-level software engineer with 7+ years full stack experience, AWS, IaC, microservices, and data governance.
AWS, Docker, Kubernetes, Terraform, CloudFormation, AWS CDK, Python, SQL, PostgreSQL, Oracle
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2mo
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Lead Software Engineer (.Net)
Saint Louis, Missouri, United States
$112k-$141k/yr HybridMultiple Commitments Available
Safety National
Safety National: Provides specialty insurance and reinsurance for workers' compensation.
5+ YOE5+ years in software development; 1–2 years in technical leadership; strong .NET Core/C#, Azure, NoSQL/Relational DB, CI/CD, REST APIs; able to mentor and lead architecture efforts.
.NET Core, C#, Microsoft Azure, Cosmos DB, MongoDB, Docker, Kubernetes, React, Angular, Vue.js
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