18 api engineer jobs at 15 companies in Sullivan, MO
1d
Save
Mark Applied
Hide
Senior API Platform Engineer (Apigee X/Apigee Hybrid)
Saint Louis or United States
$82k-$178k/yr OnsiteFull Time
5+ YOERequires 5+ years architecting API solutions, 2+ years delivering Apigee solutions, deep Apigee X/Hybrid expertise, GCP, API management, microservices, security, and enterprise production experience.
Apigee, Apigee X, Apigee Hybrid, Google Cloud Platform (GCP), Microservices, Istio, Docker, Kubernetes, OAuth2, SSO, OpenID Connect, JWT, Okta, Active Directory (AD), Azure Active Directory, Apigee Portal, Apigee Edge, Drupal, Node.js, JavaScript, Jenkins, Mulesoft, Data Power, Boomi, AWS, Microsoft Azure, AI tools, CI/CD, TCP, TLS, SSH
1mo
Save
Mark Applied
Hide
Sr Software Developer - API Integration
Creve Coeur or St. Louis
$110k-$130k/yr HybridFull Time
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
2mo
Save
Mark Applied
Hide
Engineer, Inspection (112428)
Burkville, Missouri, United States
OnsiteFull Time
5+ YOEEngineering degree with 5+ years industrial experience; API inspection knowledge; SAPPSAim experience; able to manage contractors and documentation.
SAP, PSAim, API, P&ID, Isometrics
2w
Save
Mark Applied
Hide
Director - Software/ AI Native Engineer
O'Fallon, Missouri, United States
$175k-$180k/yr OnsiteFull Time
8+ YOEBachelor's required; 8+ years experience; deep expertise in cloud-native architecture, microservices, API management, AWS, AI-assisted development and AI governance.
GitHub Copilot, Claude Code CLI, AI Foundry, Bedrock, OpenAI, Anthropic, Model Context Protocol (MCP), AWS
1d
Save
Mark Applied
Hide
Geospatial Data Content Management Engineer – Senior
Arnold, Missouri, United States
OnsiteFull Time
10+ YOEBachelor's degree and 10 years of combined experience required. Must be a US citizen with TS/SCI clearance and ability to obtain CI polygraph; advanced geospatial, Python, API, database, ETL, and security engineering expertise required.
ArcGIS Suite, ArcPro, ArcGIS Online, ArcGIS Server, Python, pandas, matplotlib, PostgreSQL, Oracle, GitHub, GitLab, Docker, Kubernetes, Fortify, AWS Secrets Manager, JavaScript, QGIS, OGR, GeoServer, PostGIS, OWASP Top 10, AWS, Azure, GCP, CIS Benchmarks, SOAR, NIST Cybersecurity Framework
1mo
Save
Mark Applied
Hide
Senior Developer
Sunset Hills, Missouri, United States
RemoteFull Time
5+ YOE5+ years professional software development, strong SQL and relational DB skills, experience building system integrations (APIs/EDI), ability to work with legacy code, clear communication, and security awareness.
SQL, RPG, IBM i, IBM Power Systems, EDI, X12, REST, JSON, APIs, ERP, Microsoft Azure, AWS
3w
Save
Mark Applied
Hide
Lead Software Engineer
O'Fallon, Missouri, United States
HybridContract
Bachelor's in CS/IS, strong full-stack Java, API, Angular, React skills; experience with Agentic frameworks, MCP and LLM integrations; Qlik Sense and data architecture experience; strong analytical and communication skills.
Java, APIs, Angular, React, Agentic Frameworks, MCP, LLMs, Qlik Sense, Tableau, Power BI, WebFocus, Hadoop, Kafka
2mo
Save
Mark Applied
Hide
Lead AI Engineer
O'Fallon, Missouri, United States
$140k-$231k/yr OnsiteFull Time
Lead AI Engineer with production AI/ML experience, strong Python, REST APIs, CI/CD, and cloud platforms (AWS, Databricks, Azure); leadership and mentoring.
Power Platform, Copilot Studio, AWS, Databricks, Python, RESTful APIs
1d
Save
Mark Applied
Hide
Software Developer
O'Fallon, Missouri, United States
$45k-$121k/yr OnsiteFull Time
3+ YOERequires 3–5 years of experience developing enterprise Java applications with Spring Boot, REST APIs, Angular, Node.js, microservices, cloud platforms, DevOps, and information security technologies.
Java, Spring Boot, REST APIs, Angular, HTML, CSS, JavaScript, jQuery, Node.js, AWS, Azure, PCF, Kubernetes, CI/CD, Splunk
1d
Save
Mark Applied
Hide
Software DEVELOPER
O'Fallon, Missouri, United States
$60k-$135k/yr OnsiteFull Time
5+ YOERequires 5–8 years of experience developing enterprise Java applications with Spring Boot, REST APIs, Angular, Node.js, microservices, cloud platforms, DevOps, and secure coding practices.
Java, Spring Boot, REST APIs, Angular, HTML, CSS, JavaScript, jQuery, Node.js, AWS, Azure, PCF, Kubernetes, DevOps, Splunk, CI/CD
2mo
Save
Mark Applied
Hide
Senior Data Solution Architect/Engineer
Gray Summit, Missouri, United States
$78k-$103k/yr HybridFull Time
2+ YOEMaster's in Computer Science/Engineering/Data Science and 2+ years as a data scientist/engineer; experience with Python, R, SQL/Scala, Power platform, Azure, VB6, SSAS/SSIS/SSRS, and data pipeline/ML model development.
ETL tools, SQL Databases, Data Warehousing, Data Modeling, Python, R, SQL, Scala, Power BI, Power Automate, Power Apps, Power Pivot, Microsoft Fabric, VB6, Azure Functions, Data Lake, APIs, SSAS, SSIS, SSRS, T-SQL
3w
Save
Mark Applied
Hide
Senior Python Developer
Fenton, Missouri, United States
OnsiteFull Time
5+ YOE5+ years software development experience with 3+ years Python; experience with RESTful APIs, databases, cloud platforms, testing, CI/CD, containerization, and mentoring.
Python 3.x, Django, Flask, FastAPI, RESTful APIs, PostgreSQL, MySQL, SQL Server, MongoDB, Redis, Git, GitHub Actions, Jenkins, Docker, Kubernetes, AWS, Azure, GCP, pytest, unittest, TensorFlow, PyTorch, scikit-learn, React, Vue.js, JavaScript
2w
Save
Mark Applied
Hide
Java AI Engineer
O'Fallon, Missouri, United States
$90k-$110k/yr OnsiteFull Time
5+ YOE5+ years Java development with Spring Boot, Agentic AI experience, SQL with Oracle/PostgreSQL, REST API, event-driven architecture, CI/CD and Jenkins; Kafka and PCF exposure preferred.
Java, Spring Boot, Agentic AI, SQL, Oracle, PostgreSQL, REST, Event-Driven Architecture, CI/CD, Jenkins, Kafka, Pivotal Cloud Foundry
1w
Save
Mark Applied
Hide
Security Engineer- Application Security & Cloud
Chesterfield or Mt Sterling
$87k-$131k/yr OnsiteFull Time
2+ YOE2+ years experience in software/cloud/DevOps or security; bachelor's or equivalent; experience with .NET/Python/Azure; knowledge of secure development, API security, auth, and secrets management.
.NET, Python, Azure, Azure DevOps, GitHub Actions, Docker, Kubernetes, Terraform, Bicep, OWASP Top 10, NIST AI Risk Management Framework
2w
Save
Mark Applied
Hide
Senior Technical Support Engineer
Creve Coeur, Missouri, United States
$90k-$110k/yr HybridFull Time
3+ YOE3+ years technical support experience, associate degree or equivalent, strong troubleshooting with SQL/APIs/logs, experience with cloud/SaaS/data security, ticketing tools, and strong communication.
Zendesk, Jira, Salesforce, Confluence, Slack, Teams, SQL, AWS, Azure, GCP, SSO, SAML, OAuth, SCIM
2mo
Save
Mark Applied
Hide
Software Engineer II
O’Fallon, Missouri, United States
$92k-$147k/yr OnsiteFull Time
Bachelor's in CS or equivalent; Java, Spring Boot, REST; relational DBs (Oracle/PostgreSQL); CI/CD; security; agile; problem-solving; maintainable code.
Java, Spring Boot, REST API, Oracle, PostgreSQL, CI/CD, Test Automation, JUnit
2w
Save
Mark Applied
Hide
Network Operations Engineer
St Peters, Missouri, United States
$70k-$90k/yr OnsiteFull Time
3+ YOE3+ years in NOC/network operations, broadband/ISP experience preferred. Requires deep networking knowledge (routing/switching, fiber access, VoIP), packet analysis, EMR not mentioned, scripting/automation experience preferred, and relevant certifications.
GPON, XGS-PON, OSPF, BGP, Wireshark, Python, Bash, Ansible, APIs
2mo
Save
Mark Applied
Hide
Manager, Software Engineering
O'Fallon, Missouri, United States
$140k-$231k/yr OnsiteFull Time
Lead multiple scrum teams; provide technical leadership; experience with Java, microservices, Rest APIs, Kafka; Agile SDLC; collaboration across product, BizOps, TechOps.
Java, Spring boot, Microservices, Rest APIs, Kafka, Oracle, Test Automation
Explore Jobs