16 backend engineer jobs at 13 companies in O'Fallon, MO
Backend Integrations Engineer
St. Louis, Missouri, United States
HybridFull Time
5+ YOE5+ years in data engineering, warehousing, or analytics platforms; bachelor's degree in a related field; expertise in T-SQL, PL/SQL, and Azure data ecosystems; Python, PySpark, ETL/ELT, APIs, and data modeling experience.
T-SQL, PL/SQL, Python, PySpark, C#, Java, Microsoft Azure, Microsoft Azure Data Factory, Microsoft Azure Synapse, Databricks, Microsoft Azure Data Lake, REST, SOAP, Power BI, Tableau, Looker, Microsoft Dynamics 365, Salesforce, DevOps, CI/CD, Agile, Scrum
Backend Software Engineer – TS/SCI
Redlands or St. Louis or Vienna +1 more
$97k-$162k/yr OnsiteFull Time
2+ YOE2+ years backend software engineering; Python, Java/Node.js, REST APIs, Docker/Kubernetes, ArcGIS Enterprise; US citizenship with active/current Top Secret clearance and SCI eligibility; Bachelor's in CS, Math, GIS or STEM.
Python, Java, Node.js, Docker, Kubernetes, ArcGIS Enterprise, REST APIs, PostgreSQL, PostGIS, SQL Server, Azure, AWS, GCP
Mid-Level Backend Software Engineer
Gaithersburg or Chantilly or Alexandria or Aurora or St. Louis or Tucson +3 more
$87k-$157k/yr OnsiteFull Time
4+ YOEBachelor's degree with 4–8 years or master's degree with 2–6 years; Java or Python, REST APIs, SQL, Linux, object-oriented development, US citizenship, and active TS/SCI with polygraph eligibility required.
Java, Python, RESTful APIs, SQL, Linux, Apache Airflow, Spring Boot, Django, GitLab, Jenkins, Docker, OpenShift, AWS, Microsoft Azure
Knowledge Engineer Manager - Back-end Engineer
United States or Albany or Arlington or Atlanta or Austin or Beaverton or Bentonville or Boston or Carmel or Charlotte or Chicago or Cincinnati or Cleveland or Columbus or Culver City or Denver or Des Moines or Detroit or Hartford or Houston or Irving or Kirkland or Miami or Milwaukee or Minneapolis or Morristown or Mountain View or Nashville or New York City or Oklahoma City or Overland Park or Philadelphia or Pittsburgh or Raleigh or Redmond or Sacramento or San Diego or San Francisco or Scottsdale or Seattle or St. Louis or St. Petersburg or Walnut Creek +1 more
$80k-$294k/yr HybridFull Time
5+ YOERequires 5+ years in knowledge graphs, ontology mapping, R2RML, graph and relational databases, vector databases, Python or Java, REST APIs, and a bachelor's degree or equivalent.
RDF, OWL, SKOS, RDFS, SPARQL, R2RML, CSVW, SHACL, GraphDB, Stardog, Neo4j, Amazon Neptune, PostgreSQL, MySQL, SQL Server, Pinecone, Weaviate, Milvus, Qdrant, Elasticsearch, OpenSearch, Python, Java, SQL, JSON, XML, CSV, REST APIs, Apache NiFi, Airflow, Docker, Kubernetes, Helm, AWS Neptune, Azure Cosmos DB, GCP, Kafka, RabbitMQ, Git, GraphQL, D3.js, Cytoscape.js, Terraform
Geospatial Backend Developer – Multiple Positions at Junior/Mid/Senior Levels
Springfield or Vienna or St. Louis
OnsiteFull Time
2+ YOEUS citizenship with active/current Top Secret clearance with SCI eligibility; Bachelor's in CS, engineering, GIS, or STEM; 2+ years backend engineering; Python, JavaScript/Node.js, Java; REST APIs; ArcGIS Enterprise; Docker/Kubernetes; background check and drug screening.
Python, JavaScript, Node.js, Java, REST APIs, ArcGIS Enterprise, Docker, Kubernetes, Azure, AWS, GCP, PostgreSQL, PostGIS, SQL Server
Software Development Engineer II – Back-End (Mission-Focused | ArcGIS)
Redlands or St. Louis or Vienna +4 more
$97k-$162k/yr OnsiteFull Time
2+ YOE2+ years backend software engineering; Python, JavaScript/Node.js, Java; REST APIs; ArcGIS Enterprise; Docker/Kubernetes; US citizenship with active or current Top Secret clearance with SCI eligibility; Bachelor's in CS, Math, GIS, or STEM.
Node.js, Python, JavaScript, Java, ArcGIS Enterprise, Docker, Kubernetes, Azure, AWS, GCP, PostgreSQL, PostGIS, SQL Server
Software Developer III - Cloud Platform (Back End, Authentication)
Atlanta or Cedar Rapids or Lake Saint Louis or Mandan
HybridFull Time
6+ YOE6+ years software development or infrastructure experience; Java, Springboot, Gradle, Angular, Docker, Python, Terraform, RESTful APIs, microservices, CI/CD, Git; hybrid work from Atlanta, Cedar Rapids, Lake Saint Louis, or Mandan.
Java, Springboot, Gradle, Angular, Docker, Python, Terraform, Git, AWS
Senior Software Engineer
O'Fallon, Missouri, United States
$115k-$184k/yr OnsiteFull Time
Proven experience developing backend applications in Linux with C/C++, deep knowledge of computer architecture and performance engineering, and experience with automation scripting (shell, TCL, Perl, Python).
C, C++, Linux, shell scripting, TCL, Perl, Python, Dynatrace, Splunk
Senior, Software Engineer
O'Fallon, Missouri, United States
$115k-$184k/yr OnsiteFull Time
Strong Java backend development experience, secure coding, automated testing, CI/CD, code review, troubleshooting, performance engineering, and AI technologies; Bachelor's in Computer Science or equivalent practical experience.
Java, CI/CD
Senior Software Engineer – Splunk Platform Authorization
Boulder or Birmingham or Juneau or Phoenix or Denver or Hartford or Dover or Miami or Atlanta or Honolulu or Boise or Chicago or Indianapolis or West Des Moines or Topeka or Frankfort or Baton Rouge or Augusta or Annapolis Junction or Ann Arbor or Minneapolis or Jackson or Clayton or Helena or Lincoln or Reno or Concord or Santa Fe or Research Triangle Park or Bismarck or Richfield or Oklahoma City or Portland or Philadelphia or Providence or Columbia or Pierre or Nashville or Austin or Montpelier or Charleston or Appleton or Cheyenne or United States +1 more
$139k-$204k/yr RemoteFull Time
7+ YOEBachelor's in CS/Engineering with 7+ years, Master's with 4+, or PhD with 1+; C++ backend development; distributed systems experience; technical leadership; U.S. work authorization required.
C++, Go, Kubernetes
Senior Software Engineer
O'Fallon, Missouri, United States
$115k-$184k/yr OnsiteFull Time
Bachelor's degree in Computer Science or related field preferred; strong backend engineering with Java, Spring Boot, Spring Integration, REST/SOAP; experience with distributed systems, Oracle/SQL, AWS, Pivotal Cloud Foundry, Jenkins, Bitbucket, Artifactory, GitHub, Atlassian suite; secure coding and production support.
Java, Spring Boot, Spring Integration, gRPC, REST, SOAP, Oracle, SQL, AWS, Pivotal Cloud Foundry, Jenkins, Bitbucket, Artifactory, GitHub, Atlassian Suite, GitHub Copilot, Claude Code
Software Engineer – Splunk Platform Authorization
Boulder or Birmingham or Phoenix or Little Rock or Denver or Hartford or Dover or Miami or Atlanta or Honolulu or Boise or Chicago or Indianapolis or West Des Moines or Topeka or Frankfort or Baton Rouge or Augusta or Annapolis Junction or Ann Arbor or Minneapolis or Jackson or Clayton or Helena or Lincoln or Reno or Concord or Santa Fe or Research Triangle Park or Bismarck or Richfield or Oklahoma City or Portland or Philadelphia or Providence or Columbia or Pierre or Nashville or Austin or Salt Lake City or Montpelier or Charleston or Appleton or Cheyenne or California or Washington or District of Columbia or Maryland or New Jersey or New York or Connecticut or Massachusetts or Virginia or Alaska
$129k-$185k/yr RemoteFull Time
5+ YOEMust be a U.S. Person and hold a current TS/SCI with Full Scope Polygraph clearance. Bachelor's degree in CS/Engineering with 5+ years experience, or Master's with 3+, or PhD. Proficiency in Go for backend development required.
Go, C++, Kubernetes
Software Engineer, AI Data - St. Louis, MO, USA
St. Louis, Missouri, United States
$140k-$200k/yr RemoteFull Time
5+ YOE5+ years professional software engineering experience; strong backend fundamentals; proficiency in Python and Bash in Linux; degree in Computer Science or related field or equivalent experience; experience with production systems and data pipelines.
Python, Bash, Linux, GCP, Terraform
Senior Software Engineer
Washington, Missouri, United States
$121k-$217k/yr HybridFull Time
Proficiency in Linux administration, modern web development (HTML5, CSS3, JavaScript, React.js), backend services, RESTful APIs, and multiple programming languages including Go, C/C++, Python, or Java.
Linux, Bash, HTML5, CSS3, JavaScript, React.js, Go, C/C++, Python, Java, RESTful APIs
Data Integrations Engineer
Florissant, Missouri, United States
HybridFull Time
2+ YOE2+ years professional experience in data pipelines, integrations, or backend services; SQL proficiency; REST/JSON API integration; API authentication; ETL/ELT; Git/GitHub; Bachelor's in Computer Science or equivalent.
SQL, REST, JSON, OAuth 2.0, OpenAPI, Git, GitHub, NetSuite, HubSpot, Domo, Oracle, Salesforce, TypeScript, Node.js, n8n, Workato, Airbyte, Databricks, Microsoft Fabric, Parquet, dbt
Tech Lead, ARC Team
San Francisco or St. Louis or New York City or Washington
$189k-$362k/yr HybridFull Time
Active Secret clearance, experience designing secure cloud-native backend systems, mentoring and managing engineers, familiarity with containerization and federal compliance frameworks.
Terraform, Docker, Kubernetes, AWS, Azure, GCP, FedRAMP, STIG Benchmarks, Cloud SRG
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