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Backend Java Developer Jobs in O'Fallon, IL, US

18 backend java developer jobs from 11 companies hiring in O'Fallon, IL, US.

All jobs in O'Fallon, IL, US Backend Java Developer Jobs in United States

Nearby:Shiloh·Fairview Heights·Belleville·Collinsville·Swansea·St. Louis·Glen Carbon·Granite City·Troy·Edwardsville·Cahokia·Maryville·Mascoutah·University City·Spanish Lake·Lebanon·Oakville·Mehlville·Scott Air Force Base

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18 jobs- O'Fallon • 50 miles

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Backend Developer SME

St. Louis, Missouri, United States

OnsiteFull Time

Freedom Technology Solutions Group: Provides geospatial and software engineering solutions for national security agencies.

14+ YOEActive TS/SCI clearance; 14+ years backend development; cloud-native; DevSecOps; leadership; experience with Python/Java/JavaScript; GitLab CI/CD; scalable distributed systems; client engagement.

Python, Java, JavaScript, Node.js, AWS, GitLab CI/CD, Docker, Kubernetes, APIs, CI/CD, Serverless, Geospatial, PostGIS

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Backend Developer (St. Louis, MO / Springfield, VA)

Alexandria or Springfield or St. Louis

$75k-$200k/yr OnsiteFull Time

geocgi: Providing specialized geospatial information systems (GIS) and IT services.

3+ YOEBackend service/API development, REST APIs, cloud/on-prem deployments, containerization, and security for geospatial platforms.

Python, JavaScript, Node.js, Java, Docker, Kubernetes, ArcGIS Enterprise, REST APIs, CI/CD, Scripting, Infrastructure as Code

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Backend Software Engineer

Gaithersburg or Alexandria or Chantilly or St. Louis or Tucson

OnsiteFull Time

Noetic Strategies: Provides cybersecurity, software development, and IT services to government agencies.

8+ YOEUS citizen; TS/SCI with poly; BS in CS/SE with 8–12 yrs (MS with 6–10); Java or Python; REST APIs; SQL; Linux; ability to work independently.

Java, Python, REST, SQL, Linux, Apache Airflow, Spring Boot, Django, GitLab, Jenkins, Docker, OpenShift, AWS, Azure, Agile

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Back-End Software Engineer (Experienced or Senior)

Berkeley, Missouri, United States

OnsiteFull Time

BoeingNYSE: BA: Designing and manufacturing commercial aircraft and defense systems.

5+ YOEBachelor's degree, active Secret clearance, 5+ years backend development (Java/Spring/SQL) and 5+ years with Go/Python/JS; Agile experience.

Java, Spring, Oracle SQL, SQL Server, Go, Python, JavaScript, NodeJS, ReactJS, GitLab, CI/CD, Docker, Kubernetes, Kafka, NiFi, Redis, RabbitMQ, RESTful APIs

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Back-End Software Engineer (Experienced or Senior)

Berkeley, Missouri, United States

$127k-$217k/yr OnsiteFull Time

BoeingNYSE: BA: Designs and manufactures aircraft, defense systems, and space technology.

5+ YOE5+ years backend development; Java/Spring/Oracle SQL/SQL Server; Go/Python; SQL/PLSQL; Agile; active Secret Security Clearance.

Java, Spring, Oracle SQL, SQL Server, Go, Python, JavaScript, NodeJS, ReactJS, GitLab, CI/CD, Docker, Kubernetes, Kafka, NiFi, Redis, RabbitMQ, REST APIs, SQL/PLSQL

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2mo

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2mo

Senior Full Stack Developer - Back End

Scott Air Force Base, Illinois, United States

HybridFull Time

Netrist Solutions: Provider of custom software and technology solutions.

5+ YOE5+ years of professional development; 3+ years in Java; backend ownership in production; DoD/federal experience preferred; government clearance required.

Java, Java (Spring Boot), .NET, AWS, Lambda, ECS, EKS, Fargate, API Gateway, RDS, S3, CloudWatch, IAM, SQL, Relational database design, Linux, Docker, CI/CD, Jenkins, GitHub Actions, GitLab CI, OpenAPI, HTML, CSS, JavaScript, Python, Bash, Static and dynamic security analysis tools, Agile

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Software Development Engineer II- Back End

St. Louis or Redlands or Washington

$97k-$162k/yr OnsiteFull Time

Esri: Developing software for digital mapping and spatial data analysis.

2+ YOE2+ years backend software engineering; Python/JavaScript/Node.js and Java; REST APIs; ArcGIS Enterprise; containerized environments; geospatial data workflows; TS clearance; BS in CS/Math/GIS/STEM.

Python, Node.js, Java, ArcGIS Enterprise, Docker, Kubernetes, REST APIs

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Senior Software Engineer

O'Fallon, Missouri, United States

$115k-$184k/yr OnsiteFull Time

MastercardNYSE: MA: Global payment processing and financial technology service provider.

5+ YOEDevelop backend services in Java (Spring, Spring Boot, REST/SOAP); agile delivery, code reviews, mentoring, and collaboration.

Java, Spring, Spring Boot, REST, SOAP, Kafka, Oracle, SQL, PCF, AWS, Jenkins, Bitbucket, Artifactory, CI/CD

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Software Engineer

St. Louis or Dayton

HybridFull Time

Awetomaton: Develops software for satellite intelligence and geospatial data analysis.

3+ YOEBackend and API development with AWS exposure; 3+ years experience; MS preferred.

Python, Go, Java, Node, AWS, API Gateway, Lambda, ECS, DynamoDB, Kubernetes, React

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2mo

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2mo

Software Engineer II

Atlanta or St. Louis

HybridFull Time

EquifaxNYSE: EFX: Provides credit reporting, data analytics, and identity protection services.

2+ YOE2+ years in software design with Java, Python and JavaScript; Bachelor's degree or equivalent experience; experience with Maven/Gradle, HTML/CSS, Cloud (GCP/AWS/Azure), Agile; relational databases; UI and backend development; CI/CD; source control (Git/SVN).

Java, Python, JavaScript, Maven, Gradle, HTML, CSS, Selenium, JUnit, Git, SVN, JIRA, Confluence, JDK

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1mo

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1mo

Senior Software Engineer, Technology Solutions

St. Louis, Missouri, United States

OnsiteFull Time

NISA Investment Advisors: Provides customized investment strategies for institutional investors.

8+ YOE8+ years in enterprise software development; strong analytics/quantitative skills; Java/C# backend; JavaScript/TypeScript frontend; Salesforce/AWS experience; CI/CD; SQL; Databricks/WordPress a plus; financial services experience a plus.

Salesforce, AWS, Java, C#, Apex, JavaScript, TypeScript, SQL, SQL Server, Databricks, WordPress, CI/CD

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Tech Consulting - Full-Stack Java Developer - Senior - Multiple Locations (Los Angeles, CA, US, 90017-5418)

Los Angeles or New York City or Hoboken or San Francisco or San Jose or Seattle or Boston or Chicago or St. Louis or Philadelphia or Dallas or Houston or Irvine or San Diego or Portland or Denver or Minneapolis or Nashville or Phoenix or Pittsburgh or McLean or Atlanta or Charlotte or Detroit or Columbus or Cleveland or Akron or Miami

$103k-$188k/yr HybridFull Time

EY: Global firm providing audit, tax, and professional consulting services.

3+ YOE3+ years software engineering; Bachelor's in CS or related field; proficient in at least one modern backend language; full-stack experience; REST APIs; React/Angular or similar; Git; cloud familiarity; travel up to 25%.

Python, Java, JavaScript, TypeScript, React, Angular, Git, Node.js, Spring, .NET, Docker, Kubernetes, REST APIs

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HiringCafe market data

Backend Java Developer Jobs market signals in O'Fallon, IL, US

These signals come from live HiringCafe job inventory, not a static article. Use them to compare the market, then open listings above to apply directly.

Open jobs

Hiring companies

Fresh sample

71% new in 30d

Salary visibility

47% show pay

Companies appearing in this market

MastercardBoeingFreedom Technology Solutions GroupNoetic StrategiesAwetomatonEquifaxEsriEY

Work location mix in visible results

Onsite: 12Hybrid: 5