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Open Systems Technologies

Full Stack Engineer

Open Systems Technologies, Boston

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Overview

We are seeking a highly skilled and experienced Senior Full Stack Java Developer to join our engineering team. This role requires deep expertise in building robust, scalable, and secure enterprise applications using Java/J2EE, Spring Boot, and modern front-end frameworks such as Angular or React. The ideal candidate has strong experience in microservices architecture, NoSQL databases, and cloud-native development, along with the ability to collaborate with cross-functional teams in an Agile environment.

Key Responsibilities

  • Design, develop, and deploy scalable full-stack applications using Java/J2EE, Spring Boot, and front-end frameworks (Angular/ReactJS).
  • Implement microservices architecture, ensuring reusability, scalability, and best practices around service orchestration, API design, and inter-service communication.
  • Integrate and optimize NoSQL databases (MongoDB or equivalent) to support high-volume, low-latency systems.
  • Develop event-driven systems and streaming pipelines with Apache Kafka or similar messaging technologies.

Required Technical Skills

  • Core Expertise: Java, J2EE, Spring Boot, Spring Framework stack.
  • Front-End Development: Angular or ReactJS (hands-on experience strongly preferred).
  • Microservices: Strong understanding of microservices patterns, best practices, and hands-on implementation with Spring Boot microservices.
  • Databases: Hands-on experience with MongoDB or other NoSQL databases; working knowledge of relational databases is an asset.
  • Messaging/Streaming: Familiarity with Kafka or other event streaming/message queue platforms.
  • DevOps & Tools: Proficient in Git, Jira, CI/CD pipelines, and build tools (Maven/Gradle).
  • Methodologies: Agile/Scrum, Test-Driven Development (TDD), Unit Testing frameworks (JUnit, Mockito).
  • Architecture: Strong knowledge of system design, UML diagrams, performance tuning, and secure coding practices.

Seniority level

Mid-Senior level

Employment type

Full-time

Job function

Information Technology

Industries

Banking, Financial Services, and Capital Markets

Location

Boston, MA

Salary

$90,000.00-$185,000.00

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