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20 junior platform engineer jobs at 11 companies in O'Fallon, MO

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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
Help us #BeatIndeed & #BeatLinkedIn
1mo
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Geospatial CI/CD & Platform Automation Engineer – Multiple Positions at Junior/Mid/Senior Levels
Springfield or Vienna or St. Louis or Sun Prairie
OnsiteFull Time
NV5
NV5: Provides engineering, consulting, and geospatial solutions for infrastructure projects.
1+ YOEActive Top Secret/SCI clearance, Bachelor's in CS/Engineering/DevOps, 1+ year DevOps/CI/CD experience, hands-on with GitHub Actions/Azure DevOps/Jenkins, Docker, Python/JavaScript, Ansible/AWS CDK/Terraform, Linux, cloud (AWS/Azure), and YAML.
GitHub Actions, Azure DevOps, Jenkins, GitLab CI, Azure Pipelines, Docker, Conda, ArcGIS API, Esri technology, SBOMs, DBOM, Python, JavaScript, Ansible, AWS CDK, Terraform, Kubernetes, Linux, YAML, S3, Blob storage
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1mo
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Geospatial CI/CD & Platform Automation Engineer – Multiple Positions at Junior/Mid/Senior Levels
Saint Louis or St. Charles or Virginia
OnsiteFull Time
NV5
NV5: Provides engineering, testing, inspection, and infrastructure consulting services.
1+ YOEUS citizen with active Top Secret/SCI clearance, bachelor’s in CS/Engineering/DevOps, 1+ years DevOps/CI-CD experience, CI/CD pipeline, Docker, Python/JavaScript, YAML, IaC (Ansible/Terraform/AWS CDK), Linux, and cloud (AWS/Azure) exposure.
GitHub Actions, Microsoft Azure DevOps, GitLab CI, Azure Pipelines, Jenkins, Docker, Dockerfile, Conda, ArcGIS API, Python, JavaScript, Rust, YAML, Ansible, AWS CDK, Terraform, Linux, S3, Blob storage, Kubernetes, SBOM, DBOM
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1mo
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Electronic Warfare Engineer
Hazelwood, Missouri, United States
$92k-$152k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.
2+ YOEBachelor's in engineering or related field, 2+ years (Level 2) or 5+ years (Level 3) related experience, active U.S. Secret security clearance, experience with requirements, modeling, simulation, testing, and DoD platform integration.
Cameo, Agile, Scrum
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1mo
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Enterprise Voice Engineer II
Scott Air Force Base, Illinois, United States
$71k/yr OnsiteFull Time
I2X Technologies
I2X Technologies: Provides mission-critical engineering, cybersecurity, and IT services to government agencies.
2+ YOEActive TS/SCI clearance, DoD 8750 IAT Level II or Security+ CE, BS (2-4 yrs) or MS (alternative), experience with Cisco/Avaya/Oracle voice platforms, SIP signaling, routing/switching and large-scale voice troubleshooting.
Cisco Unified Communications Manager (CUCM), Cisco Unity, Cisco Unified Border Element (CUBE), Oracle Session Border Controller (SBC), Avaya Aura Application Server, Cisco, Juniper, SIP, Secure Real-Time Transport Protocol (SRTP), G.711, G.729, DTMF, IPSec, MPLS, BGP, QoS
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1mo
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Software Development Engineer II – CI/CD & Platform Automation (Mission-Focused)
Redlands or St. Louis or Vienna
$97k-$162k/yr OnsiteFull Time
Esri
Esri: Developing software for digital mapping and spatial data analysis.
2+ YOE2+ years DevOps/CI-CD/platform automation experience; hands-on with CI/CD pipelines, Docker, Python/JavaScript, IaC (Terraform/AWS CDK/Ansible), cloud (AWS/Azure); US citizenship and active Top Secret/SCI clearance required; Bachelor's in a STEM field.
GitHub Actions, Microsoft Azure DevOps, GitLab CI, Jenkins, YAML, Docker, Conda, Python, JavaScript, Rust, Ansible, AWS CDK, Terraform, Kubernetes, Amazon S3, Microsoft Azure Blob Storage, Software Bill of Materials (SBOM), SAST, DAST
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3w
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SailPoint Engineer
Scott Air Force Base, Illinois, United States
$87k-$198k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
Experience with SailPoint and IAM platforms, identity lifecycle implementation and integrations (ServiceNow, Workday, SAP, Oracle, AWS/Azure), LDAP/Active Directory/Azure AD knowledge, ability to mentor junior staff, Secret clearance, HS diploma/GED.
SailPoint, SailPoint IIQ, Ping, Virtru, ServiceNow, Workday, SAP, Oracle, AWS, Azure, LDAP, Active Directory, Azure AD, CyberArk, BeyondTrust
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23h
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Associate Solutions Engineer
Saint Louis, Missouri, United States
$108k-$171k/yr OnsiteFull Time
Netskope
NetskopeNASDAQ: NTSK: Cloud-native cybersecurity and data protection platform for enterprises.
1+ YOE1-3 years solutions/system engineering experience, strong customer communication, hands-on with Linux/MacOS/Windows, cloud platforms, identity and security integrations, and ability to support sales engagements.
Linux, MacOS, Windows, Android, iOS, Python, REST API, SCIM, SIEM, SOAR, EDR, SD-WAN, Active Directory, ADFS, Azure AD, AWS, Azure, GCP, SAML/SSO, Bluecoat, Symantec, McAfee, Checkpoint, Cisco, Juniper
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2w
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Data Engineer
Carmel or St. Louis
HybridFull Time
CleanSlate Technology Group
CleanSlate Technology Group: Provides cloud-native software development and IT modernization services.
2+ YOE2+ years building data engineering or data platform solutions; experience with Python/Java/Scala, SQL, Spark/Databricks/Snowflake/Redshift/Azure Fabric/AWS Glue/Azure Data Factory, and AWS or Azure; strong collaboration and communication skills.
Python, Java, Scala, SQL, Spark, Databricks, Snowflake, Redshift, Azure Fabric, AWS Glue, Azure Data Factory, AWS, Azure, CI/CD, infrastructure-as-code, Claude Code, Cursor, Kiro, NoSQL
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2w
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Jr DevOps Engineer
Springfield or St. Louis
FieldFull Time
Abile Group
Abile Group: Provides IT, cybersecurity, and program management services to government agencies.
2+ YOETS/SCI clearance with CI poly, Bachelor's in CS/Engineering or equivalent, 2+ years experience, container platform experience (Kubernetes/Docker/OpenShift), GitLab, Python/Bash/Shell, CI/CD, network and on-prem infrastructure knowledge.
Kubernetes, Docker, OpenShift, GitLab, Python, Bash, Shell, Helm, Jira, Confluence
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3w
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Data Engineer AMC Level One
Scott Air Force Base, Illinois, United States
$70k-$78k/yr HybridFull Time
Small Business Consulting Corporation
Small Business Consulting Corporation: Defense consulting firm specializing in military technology integration and procurement.
1+ YOEBachelor's in a relevant field, 1+ years data engineering/analytics experience, US citizenship and ability to obtain U.S. security clearance, proficiency with Python and SQL, exposure to cloud platforms and big data tools.
Python, SQL, R, AWS, Azure, GCP, Spark, Databricks, Hadoop
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1mo
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Senior Data Solution Architect/Engineer
Gray Summit, Missouri, United States
$78k-$103k/yr HybridFull Time
Land O'Lakes
Land O'Lakes: A member-owned cooperative providing agricultural supplies and dairy products.
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
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3w
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Enterprise Voice Engineer
Scott Air Force Base, Illinois, United States
$52k-$56k/yr OnsiteFull Time
Leidos
LeidosNYSE: LDOS: Provides engineering and IT solutions for government agencies.
2+ YOEU.S. citizen with active Top Secret/SCI clearance; BS degree with 2+ years relevant experience (or MS with less); DoD 8750 IAT II or Security+ CE; experience with Cisco/Avaya/Oracle voice platforms, SIP, routing/switching, and voice fault analysis.
Cisco Unified Communications Manager (CUCM), Cisco Unity, Cisco Unified Border Element (CUBE), Oracle Session Border Controller (SBC), Avaya Aura Application Server, Cisco, Juniper, SIP, SRTP, G.711, G.729, DTMF, IPSec, MPLS, BGP, QoS
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1d
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Site Reliability Engineer (Associate or Experienced)
Berkeley, Missouri, United States
$99k-$171k/yr OnsiteFull Time
Boeing
BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.
2+ YOEU.S. person able to obtain U.S. security clearance, Bachelor's degree, 2+ years software development/troubleshooting, experience with GitLab/Azure DevOps and CI/CD, cloud (AWS/Azure) knowledge, scripting and platform administration.
GitLab, GitLab CI/CD, GitLab runners, Azure DevOps, Jira, Confluence, PostgreSQL, Artifactory, SonarQube, Amazon Web Services (AWS), Microsoft Azure, Ansible, Jenkins, Python, Java, C#, C++, Bash, PowerShell, Infrastructure as Code (IaC)
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