531 software engineer jobs at 165 companies in East Saint Louis, IL

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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.
3w
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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
2w
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Software Engineer
Hazelwood, Missouri, United States
OnsiteFull Time
FlightSafety International
FlightSafety International: Professional aviation training and flight simulator manufacturing services.
2+ YOEBachelor's in CS/CE/Applied Math,2+ years software engineering experience,proficiency in C#,system-level debugging,strong math/geometry skills,ability to obtain U.S. person/export eligibility and possibly security clearance.
C#, Microsoft Visual Studio, MATLAB, PowerShell
2mo
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Software Engineer II
O'Fallon, Missouri, United States
$92k-$147k/yr OnsiteFull Time
Mastercard
MastercardNYSE: MA: Global payment processing and financial technology service provider.
Experience in software development and SDLC, strong Java proficiency, Git and CI/CD experience, familiarity with Agile, degree in CS/Engineering/IT or equivalent experience; experience with decisioning platforms preferred.
Java, Git, CI/CD, Jira, Confluence, Rally, Decision Management Program (DMP)
1mo
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Software Engineer
Denver or St. Louis or Sterling or Springfield
$82k-$172k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOEBachelor's in a technical field, TS/SCI with polygraph, 5+ years software development experience with Java and/or Python, web frameworks, relational/NoSQL databases, Agile experience, and secure coding practices.
Java, Python, ArcGIS, GeoServer, OpenLayers, Leaflet, Cesium, Docker, Kubernetes, CI/CD
1d
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Senior Software Engineer
Bridgeton or United States
$92k-$164k/yr RemoteFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.
8+ YOEBachelor's degree in computer science, information technology, or engineering; 8 years software development; full-stack React, Node.js, and .NET; Azure, data workflows, Git, and AI solution experience.
React, Node.js, .NET, Microsoft Azure, REST, Azure Data Factory (ADF), Databricks, Azure Service Bus, Azure SQL Managed Instance (SQL MI), Delta Lake, Git, Apache Tomcat, Quadient
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Software Engineer I
St. Louis, Missouri, United States
OnsiteFull Time
Nidec
NidecTokyo Stock Exchange: 6594: Manufactures electric motors and electronic components for industrial applications.
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
6d
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Software Engineer (Desktop.NET)
Kansas City or Denver or Chicago or Cincinnati or St. Louis or Florida or Iowa or Nebraska or Tennessee
$100k-$140k/yr RemoteFull Time
Computer Information Concepts
Computer Information Concepts: Software for K-12 schools and local government administration.
5+ YOE5+ years of .NET software engineering, strong C# and VB.NET, WinForms, modern .NET, SQL Server/T-SQL, ASP.NET/IIS, testing, Git, CI/CD, NuGet, monitoring, and agile product development experience.
C#, VB.NET, WinForms, .NET Framework, .NET, SQL Server, T-SQL, ASP.NET, IIS, SAP Crystal Reports, JSON, XML, Git, GitHub, NuGet, LINQ, Entity Framework, GitHub Actions, Azure DevOps, PowerShell, REST APIs, Claude Code, Codex
5d
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Junior Software Developer
St. Louis or Illinois or United States or Europe or South America or Asia
$60k-$65k/yr OnsiteFull Time
Interco
Interco: Recycles nonferrous metals, electronics, and batteries for global markets.
Bachelor's degree in computer science, software engineering, or related field; JavaScript, React.js, HTML, CSS, RESTful APIs, PostgreSQL, Git, and Figma experience required.
JavaScript, React.js, HTML, CSS, RESTful APIs, PostgreSQL, CI/CD, FastAPI, Git, Figma, Angular, Vue.js, HTML5, CSS3
1mo
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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
1mo
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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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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
3mo
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Principal Software Engineer
Atlanta or Boston or Morristown or Plano or St. Louis or St. Petersburg or Hyderabad
HybridFull Time
Zelis
Zelis: Providing healthcare payment and claims cost management solutions.
8+ YOE8+ years backend software engineering; degree or equivalent; cloud, IaC, CI/CD; APIs; strong communication; leadership.
TypeScript, Node.js, PostgreSQL, Angular, AWS, Terraform, Elasticsearch, CI/CD, SASS
6d
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Lead Software Engineer - SRE
Charlotte or Saint Louis
$119k-$187k/yr HybridFull Time
Wells Fargo
Wells FargoNYSE: WFC: Global provider of banking, investment, and mortgage financial services.
5+ YOERequires 5+ years of software engineering, observability tooling, infrastructure support, toil reduction, and cloud application management experience, plus SRE and platform technology expertise.
Splunk, AppDynamics, Splunk Observability, Grafana, OpenTelemetry, OpenShift Container Platform, Java, JavaScript, Ruby, Python, JSON, Angular, Node.js, AWS, PCF, PKS, Kubernetes, OpenShift, Linux, Azure, Windows, VMware, Prometheus, Glassbox, Shell scripting
6d
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Principal Software Engineer I
Maryland Heights, Missouri, United States
HybridFull Time
Charter Communications
Charter CommunicationsNASDAQ: CHTR: A leading broadband connectivity and telecommunications services provider.
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
1d
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Sr. Software Engineer (Data & Application Engineer)
Cincinnati or Atlanta or Hopkins or Chicago or Gresham or Denver or Charlotte or Brookfield or Irving or Earth City
$112k-$131k/yr HybridFull Time
U.S. Bank
U.S. BankNYSE: USB: Provider of personal, business, and institutional financial services.
5+ YOEBachelor’s degree or equivalent experience and 5–6 years of relevant experience; strong programming, data engineering, API, cloud, DevOps, database, and secure software development skills.
Java, Python, SQL, JavaScript, Git, CI/CD, DevOps
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
2mo
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Sr. Engineer, Software - Archimedes
St. Louis or Brentwood or Alaska or Arizona or Arkansas or California or Connecticut or Delaware or Hawaii or Idaho or Louisiana or Maine or Massachusetts or Michigan or Mississippi or Montana or Nebraska or Nevada or New Mexico or New York or North Carolina or North Dakota or Oregon or Rhode Island or South Carolina or South Dakota or Texas or Utah or Vermont or Washington or West Virginia or Wyoming or United States
HybridFull Time
Navitus Health Solutions
Navitus Health Solutions: Transparent pharmacy benefit management and specialty pharmacy provider.
8+ YOEBachelor's in CS or related; 8+ years software engineering experience (5+ years with C#, .NET, React); experience with cloud-native, APIs, microservices, CI/CD, Git, Azure; technical leadership and mentoring experience.
C#, .NET, ASP.NET Core, React, TypeScript, JavaScript, REST APIs, GraphQL, Webhooks, API Management, Microsoft Azure App Services, Microsoft Azure Functions, Microsoft Azure Container Apps, Microsoft Azure Kubernetes Service (AKS), Microsoft Azure Storage, Microsoft Azure Databricks, Microsoft Azure Data Lake Storage Gen2, Microsoft Azure Synapse Analytics, Microsoft SQL Server, PostgreSQL, Microsoft Azure DevOps, GitHub Actions, CI/CD, Infrastructure as Code, Retrieval-Augmented Generation (RAG), Microsoft Azure OpenAI, Microsoft Azure AI Services, Intelligent Automation, Agent-Based Solutions, OWASP, OAuth2, OpenID Connect, DevSecOps, Git, Azure Repos, GitHub, TFS, Jira, Unix/Linux shell scripting
3w
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Staff Software Engineer
St. Louis or Burlington
$111k-$166k/yr HybridFull Time
Merck
MerckXETRA: MRK: A science and technology providing healthcare, life science, and electronics solutions.
3+ YOEBachelor's in CS/Engineering/Data Science, 3+ years in ML/data/search systems, strong Python, backend and data engineering experience, SQL, cloud (GCP/AWS), and production ML/LLM system design.
Python, REST API, Pandas, NumPy, MLFlow, TensorFlow, PyTorch, Scikit-learn, AWS Services, GCP, Kubernetes, Bedrock, Kafka, LangGraph, LangChain, AirFlow, Qdrant, Docker, Git, CI/CD, SQL
1w
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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+ YOEBachelor's degree in computer science, information technology, or related field; 7+ years of software development experience; strong Java 8, Spring Boot, microservices, Angular JS, testing, and cloud platform skills.
Java, Spring Boot, Microservices, Apache Kafka, AngularJS, JUnit, Mockito, PCF, Microsoft Azure, Docker, Kubernetes, RESTful APIs, SQL, NoSQL