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937 software engineer jobs at 227 companies in O'Fallon, MO

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Software Engineer
Atlanta or Alpharetta or Louisville or St. Louis or Georgia
RemoteFull Time
Equifax
EquifaxNYSE: EFX: Global data, analytics, and technology.
5+ YOEBachelor's degree or equivalent; 5+ years software engineering; 5+ years Java, SpringBoot, TypeScript/JavaScript, HTML, CSS; 5+ years cloud (GCP, AWS, Azure); microservices, CI/CD, Kubernetes, Terraform.
Java, SpringBoot, TypeScript, JavaScript, HTML, CSS, GCP, AWS, Azure, GKE, Kubernetes, Jenkins, Helm Charts, Terraform, Dataflow, Apache Beam, Bigtable, BigQuery, PubSub, GCS, Composer, Airflow, Angular, Bootstrap, J2EE, SOA, SVN, Git, GitHub, Maven, Gradle, Scrum, XP, SQL Server, MySQL, JIRA, Confluence, JUnit, Selenium, LoadRunner, SoapUI
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3w
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Software Engineer
Creve Coeur or Illinois or Missouri +1 more
$102k-$140k/yr HybridFull Time
Zelis
Zelis: Private healthcare financial technology serving payers, providers, and healthcare consumers with claims, payment, and member-engagement solutions.
1+ YOE1-3 years software engineering experience; C# .NET and SQL proficiency; strong debugging and analytical skills; ability to read code and trace behavior; willingness to participate in 24/7 on-call rotation; located in St. Louis area.
C#, SQL, Splunk, Logic Monitor, New Relic
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Senior Software Engineer
O'Fallon, Missouri, United States
$115k-$184k/yr OnsiteFull Time
Mastercard
MastercardNYSE: MA: Global payments technology powering digital economies.
7+ YOEBachelor's degree in Computer Science, MIS, Engineering or related field; 7+ years software engineering experience; 2+ years Golang; AWS, Kubernetes, Docker, CI/CD, Linux, and secure coding experience required.
Golang, AWS, Kubernetes, Amazon EKS, Docker, VPC, Transit Gateway, PrivateLink, Route 53, Network Load Balancers, Direct Connect, Python, Git, Jenkins, Artifactory, Docker Registry, Linux, gRPC, Protocol Buffers
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Software Engineer
Hazelwood, Missouri, United States
OnsiteFull Time
FlightSafety
FlightSafety: Private Berkshire Hathaway aviation providing pilot training, aircraft-maintenance training, and flight simulators to aviation and military operators.
2+ YOEBachelor's degree in computer science, computer engineering, electrical engineering, mechanical engineering, aerospace engineering, or other technical field plus 2 years related experience; or equivalent combination. Requires C, C++, Python, or PowerShell programming experience.
C, C++, Python, PowerShell, Jira, Confluence, Crucible, SVN, Perforce, Git
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1mo
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Software Engineer SME
Gaithersburg or Alexandria or Chantilly or Englewood or St. Louis or Tucson
$131k-$237k/yr OnsiteFull Time
Leidos
LeidosNew York Stock Exchange: LDOS: Public defense and technology contractor serving government and commercial customers with digital, health, infrastructure, and engineering solutions.
12+ YOEU.S. citizenship, active Top Secret/SCI clearance with polygraph eligibility, bachelor's degree plus 12–15 years or master's plus 10–13 years, and extensive modern software engineering experience.
HTML, CSS, JSON, REST APIs, Python, Java, JavaScript, Go, React, Angular, Vue.js, jQuery, Spring Boot, Django, Node.js, Flask, Svelte, AWS, IBM, Google, Azure, Oracle, S3, SQS, SNS, EC2, CloudFormation, RDS, MySQL, PostgreSQL, SQL Server, OpenSearch, Elasticsearch, Windows, Linux, Git, Terraform, Docker, Kubernetes, GitLab CI/CD, Jenkins, SonarQube, Nexus, Keycloak, Vault, JIRA, Confluence, OGC WMS/WFS, NSG, GEOINT, C2S, GovCloud
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Software Engineer
Denver or Springfield or St. Louis or Sterling
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provider of specialized IT and mission-critical government services.
5+ YOEBachelor's degree in a technical discipline, 5+ years of software development experience, Java or Python, web applications, databases, Agile, secure development, and TS/SCI clearance with polygraph.
Java, Python, ArcGIS, GeoServer, OpenLayers, Leaflet, Cesium, Docker, Kubernetes, CI/CD, DevSecOps
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Software Engineer I
St. Louis, Missouri, United States
OnsiteFull Time
Nidec Motor Corporation
Nidec Motor Corporation: Motor is a private U.S. manufacturer of industrial, commercial, appliance motors, and control equipment.
0+ YOEBS in EE/Software Engineering/Computer Science,0–3 years experience in desktop or embedded development,proficiency with C/C++,C#,Visual Basic,SQL,Java,IDE experience,embedded systems and hardware testing.
C, C++, C#, Visual Basic, SQL, Java, Microsoft Visual Studio
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Software Engineer
Maryland Heights, Missouri, United States
$105k-$128k/yr OnsiteFull Time
Tapestry Solutions
Tapestry Solutions: Boeing-owned defense and industrial software provider serving government, military, and commercial customers with logistics and mission-readiness systems.
5+ YOEBachelor's degree and 5+ years of software development experience with JavaScript, TypeScript, React, C# or C++; REST APIs, Agile methods, testing, version control, and ability to obtain a U.S. Secret Clearance.
JavaScript, TypeScript, React, C#, C++, REST, Jira, Jira Align, Microsoft Azure DevOps, Git, .NET MAUI
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Software Engineer
Olivette, Missouri, United States
HybridFull Time
Brown & Brown, Inc.
Brown & Brown, Inc.NYSE: BRO: Global insurance brokerage and risk management services provider.
Ability to analyze business processes, design and code software using .NET, Entity Framework, Angular, JavaScript, HTML, CSS, XML, XSL, SQL, WPF, and REST APIs; strong problem-solving and communication skills.
.NET, Entity Framework, Angular, JavaScript, HTML, CSS, XML, XSL, SQL, WPF, REST APIs, Git, CI/CD
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2mo
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Principal Software Engineer I
Maryland Heights, Missouri, United States
HybridFull Time
Charter Communications
Charter CommunicationsNASDAQ: CHTR: Leading broadband connectivity and cable operator.
8+ YOEBachelor’s degree or equivalent experience, 8+ years software engineering experience, cloud architecture expertise, and advanced C#, .NET, microservices, Kubernetes, databases, CI/CD, and front-end skills.
C#, ASP.NET, .NET Core, .NET 8, GitLab, GitHub, Helm, Kubernetes, AWS, Google Cloud Platform (GCP), Cloud Run, GKE, Cloud Functions, Pub/Sub, Cloud SQL, Azure DevOps Repos, Bitbucket, ReactJS, TypeScript, JavaScript, HTML5, CSS3, REST APIs, OAuth2, OpenID Connect, SAML, JWT, SQL Server, PostgreSQL, MongoDB, DynamoDB, Kiro, Claude, GitHub Copilot, Amazon Q Developer, UiPath, Microsoft Power Automate, Automation Anywhere, Kafka, RabbitMQ, Splunk, Datadog, Grafana, Prometheus, OpenTelemetry, Elastic Stack
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1mo
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Software Web Developer
St. Louis, Missouri, United States
$90k-$110k/yr OnsiteFull Time
Meridian Systematics
Meridian Systematics: Private engineering firm delivering secure data, cyber, and digital modernization solutions to U.S. defense and intelligence agencies.
5+ YOEActive TS/SCI clearance with CI Polygraph eligibility; U.S. citizenship; 5+ years software development; Bachelor's in CS/Engineering/Math or equivalent; experience with Python, Java, JavaScript, React, .NET, Docker, Kubernetes, CI/CD, SQL, Jira, Confluence.
Python, Java, JavaScript, React, .NET, Visual Basic, Docker, Kubernetes, GitLab, Jenkins, Nexus, SQL, Jira, Confluence, Red Hat OpenShift, AWS, Elasticsearch, PostgreSQL, HTML, CSS, Sass, Less, Helm, Terraform, REST APIs, ArcGIS, MapInfo
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2mo
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Senior Software Engineer (Modern .NET)
Denver or Kansas City or Chicago or Cincinnati or St. Louis or Florida or Iowa or Nebraska or Tennessee
$120k-$160k/yr RemoteFull Time
Computer Information Concepts
Computer Information Concepts: Private software and services provider serving county, city, and school governments with finance, education, and management systems.
6+ YOERequires 6+ years of software engineering experience, C#/.NET and ASP.NET Core, REST APIs, relational databases, SQL Server, EF Core, testing, cloud deployment, CI/CD, and Git workflows.
C#, .NET, ASP.NET Core, EF Core, SQL Server, Azure, React, TypeScript, REST APIs, CI/CD, Git, Angular, Vue, Figma, Terraform, Bicep, Culture Index, Microsoft Windows
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Software Engineer
Fenton, Missouri, United States +1 more
$86k-$103k/yr HybridFull Time
Panera Bread
Panera Bread: Fast-casual bakery-café restaurant chain.
6+ YOE6+ Mgmt6+ years Salesforce experience, 6+ years IT support, 6+ years leading Agile Sprint teams, proficiency in JIRA, SQL, relational databases, and Microsoft Excel/Word/Outlook.
Salesforce, Sales Cloud, JIRA, SQL, Microsoft Excel, Microsoft Word, Microsoft Outlook
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