Full Stack Developer (Angular, Java)

Open Systems Technologies; Irving (TX); On-site; USD 130,000 - 170,000; Full time

Job summary

Open Systems Technologies seeks a senior software engineer with 8+ years building enterprise-scale, highly componentized applications. You will contribute across front-end and back-end layers, delivering robust APIs and responsive interfaces.

The role emphasizes Java ecosystem proficiency, Spring Framework, Spring Boot, and modern cloud-native deployment using Kubernetes and Docker, with CI/CD experience. Strong debugging, performance tuning, and database expertise (SQL, Oracle, Liquibase) are

Qualifications

• 8+ years of hands-on experience in building enterprise-scale, componentized applications.
• Experience with Angular, React, Swift, or Kotlin and associated testing frameworks (Jest).
• Server-side development with Java or Python and API design.
• Expertise in Java ecosystem: Spring, Spring Boot, Spring Security, Spring Web, Spring Data.
• Experience with MoM, REST microservices, Kafka, RabbitMQ or similar.
• Cloud-native design and deployment on Kubernetes, Docker; CI/CD tooling.
• Proficient in SQL, Oracle dialect, Liquibase changesets.

Skills

Front-End Experience

Java Back-End

Spring Framework

Messaging & Microservices

Cloud-Native / DevOps

SQL & Oracle

Job description

8+ years of hands-on experience in building enterprise scale highly componentized applications

Front-End Development: Demonstrated experience in either Angular, React, Swift, Kotlin and associated testing frameworks (Jest).

Back-End Development: Solid experience in developing server-side logic and APIs using languages such as Java, Python, or similar.

Java Ecosystem Proficiency: Expertise in Java, Spring Framework, Spring Boot, Spring Security, Spring Web, Spring Data, coupled with hands-on experience in Threading, Collections, Exception Handling, JDBC, OOD/OOP Concepts, and GoF Design Patterns.

Messaging & Integration Architectures: Experience with Messaging-Oriented Middleware (MoM), and Micro-services utilizing REST, with a strong understanding of Kafka and other enterprise messaging systems (e.g., RabbitMQ, ActiveMQ, IBM MQ).

Cloud-Native & DevOps Expertise: Proven experience in designing and implementing cloud-ready applications and deployment pipelines on large-scale container platforms (e.g., Kubernetes, Docker). Strong understanding of CI/CD environments and tools (Tekton, Harness, Jenkins, Code Quality).

Database Expertise: Proficient in SQL, particularly Oracle dialect, with comprehensive knowledge of database SQL optimization. Generate delta between data model versions, transform them into Liquibase changesets and deploy them in release trains environments.

Architectural & Design Principles: In-depth knowledge of industry standard best practices, design patterns, coding standards, modularity, and prototyping.

System Optimization & Troubleshooting: Advanced skills in debugging, performance tuning, and optimizing complex enterprise applications.