14 appsec engineer jobs at 9 companies in Ballwin, MO

PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
2d
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AppSec Engineer
United States or O'Fallon
$75k-$158k/yr RemoteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
6+ YOEActive Secret clearance,6+ years AppSec/pen testing experience, advanced Fortify and SonarQube proficiency, secure code review and SDLC experience, DoD 8140 certifications, bachelor’s degree preferred.
Fortify, SonarQube
2d
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AppSec Engineer
United States or O'Fallon
$75k-$158k/yr RemoteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
6+ YOEActive Secret clearance,6+ years application security experience, advanced Fortify and SonarQube skills, penetration testing and secure code review experience, bachelor’s degree in a technical field, and DoD 8140-related certifications.
Fortify, SonarQube
1w
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Principal Engineer - Systems
St. Louis, Missouri, United States
RemoteFull Time
Enterprise Mobility
Enterprise Mobility: Provider of vehicle rental and diverse mobility solutions.
11+ YOE11+ years software and infrastructure engineering experience, expertise in cloud (Azure), security (MFA, SSO, MIM, OTP), distributed systems, and strong stakeholder communication and mentoring skills.
Microsoft Active Directory, Microsoft Entra, AppSec, MFA, SSO, MIM, OTP, Azure
3w
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Cloud DevOps Engineer
Scott AFB or United States
$82k-$172k/yr RemoteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOERequires Secret clearance, 5+ years related experience, Bachelor's degree or equivalent, Security+; experience with GitLab CI/CD, Terraform/Ansible/CloudFormation, Docker/Kubernetes/OpenShift, AWS services, and programming in Python/Go/Java/JavaScript/Bash.
GitLab CI/CD, SonarQube, Fortify, OWASP, Splunk, ELK Stack, Prometheus, Grafana, Python, Go, Java, JavaScript, Bash, Git, Terraform, Ansible, CloudFormation, Docker, Kubernetes, OpenShift, Artifactory, Nexus, Docker Registry, SAST, DAST, SCA, IAST, EC2, CloudWatch, CloudTrail, S3, IAM, EKS, WAF, Shield, ECS, VPC, RBAC, SSO, SAML
3w
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Cloud DevOps Engineer
United States or Scott Air Force Base
$82k-$172k/yr HybridFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
5+ YOESecret clearance, Security+ certification, Bachelor’s degree or equivalent, 5+ years related experience, 2+ years CI/CD pipeline management, AWS, GitLab CI/CD, Terraform/Ansible/CloudFormation, Docker/Kubernetes, and scripting (Python, Go, Java, JavaScript, Bash).
GitLab CI/CD, SonarQube, Fortify, OWASP, Splunk, ELK Stack, Prometheus, Grafana, Python, Go, Java, JavaScript, Bash, Git, Terraform, Ansible, CloudFormation, Docker, Kubernetes, OpenShift, Artifactory, Nexus, Docker Registry, SAST, DAST, SCA, IAST, EC2, CloudWatch, CloudTrail, S3, IAM, EKS, WAF & Shield, ECS, VPC, RBAC, SSO, SAML
1mo
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Senior Software Engineer
O'Fallon, Missouri, United States
$115k-$184k/yr OnsiteFull Time
Mastercard
MastercardNYSE: MA: Global payment processing and financial technology service provider.
Strong OOP and Java skills, experience with CI/CD, containers, Kafka/Flink, observability (OpenTelemetry), secure coding, test-driven practices, and ability to mentor engineers and deliver large-scale distributed systems.
Java, Python, Bash, Apache Kafka, Apache Flink, OpenTelemetry, CI, CD, OOP, SOLID, 12-factor, TDD, BDD, OWASP, CWE, SEI CERT
1mo
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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
1mo
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Staff Engineer
Calgary or Phoenix or Scottsdale or Pittsburgh or Columbus or Orlando or St. Louis or Edmonton or Halifax or Moncton or Ottawa or Toronto or Winnipeg or Vancouver
$200k-$240k/yr RemoteFull Time
ZayZoon
ZayZoon: Provides employees with instant access to their earned wages.
6+ YOE6+ years with Ruby on Rails, strong OO and DDD fundamentals, experience with scale/concurrency/queuing/background processing, AWS/RDS/serverless experience, SQL/ETL/data-warehouse skills, security mindset (OWASP, SOC-2), and experience applying AI to workflows.
Ruby on Rails, AWS, RDS, SQL, OWASP, SOC-2, Domain-driven design (DDD), microservices, serverless, ETL, AI
2mo
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Cloud Engineer (St. Louis, MO, Missouri, United States)
St. Louis, Missouri, United States
$78k-$170k/yr OnsiteFull Time
HII
HIINYSE: HII: Builds naval ships and provides global defense technology solutions.
Mid-level cloud engineer with TS/SCI clearance; experience with cloud architectures, software development, and security; strong problem-solving and communication skills.
AWS, OpenShift, GitLab, Kibana, Fortify, OWASP, SonarQube
2mo
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PHP Developer
St. Louis, Missouri, United States
$111k-$150k/yr OnsiteFull Time
Federal Reserve System
Federal Reserve System: The central bank of the United States.
5+ YOE5+ years PHP, Go Lang, Laravel, Linux, SQL/NoSQL, JavaScript, Docker; AWS; RESTful APIs; CI/CD (GitLab); React.js; OWASP; 508 accessibility; US Citizenship or Green Card with 3 years residency.
PHP, Laravel, Go, Linux, SQL, NoSQL, Docker, React.js, AWS, GitLab, OWASP, Bootstrap, HTML, CSS, PostgreSQL, RESTful APIs
1mo
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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 Java and Python, CI/CD, Kafka and Flink, OpenTelemetry, secure coding, IaC, TDD/BDD, and building distributed systems.
Java, Python, Bash, Apache Kafka, Apache Flink, OpenTelemetry, CI/CD, Infrastructure as Code, OWASP, CWE, SEI CERT, TDD, BDD
1w
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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
1w
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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
3w
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AI Security and Governance Lead
Washington or Los Angeles or Troy or New York or Houston or Chicago or Grand Rapids or Owings Mills or Baltimore or Columbia or Richmond or Memphis or Raleigh or Boston or San Jose or San Francisco or Austin or Kalamazoo or Spokane or Denver or Fort Worth or Atlanta or Orlando or Dallas or Wilmington or Phoenix or San Antonio or Milwaukee or Madison or McLean or Huntsville or Melville or Woodbridge or Stamford or Miami or Philadelphia or Charlotte or Greenville or West Palm Beach or Costa Mesa or St. Louis or Fort Lauderdale or Seattle or Rosemont or Pittsburgh or Tulsa or Cincinnati or Cleveland or Columbus or Akron or Cherry Hill or Tampa or Minneapolis or Anchorage or Salt Lake City or Norfolk or Jacksonville or Boulder or Nashville or Oak Brook or Las Vegas or Indianapolis or San Diego or Potomac or Walnut Creek or Daphne or Baton Rouge or Metairie or Grenada or Hattiesburg or Brentwood or Jackson or Miramar Beach or Tallahassee or Mobile
$151k-$193k/yr OnsiteFull Time
BDO USA
BDO USA: Provides accounting, tax, and business advisory services to organizations.
7+ YOEBachelor's in CS/IT/Cyber/Data Science required, 7+ years in enterprise architecture/security/governance or AI engineering, experience with Microsoft Azure AI platforms, AI risk assessments and governance frameworks, and leadership/mentoring experience.
Microsoft Azure, Azure AI, Azure OpenAI, Azure AI Foundry, LangChain, Semantic Kernal, NIST AI RMF, ISO 42001, ISO 27001, OWASP, SANS