Java Full-Stack Engineer — Scalable Web Apps & APIs

Datamatics Technologies LLC

Islamabad

On-site

PKR 1 - 2

Full time

2 days ago
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Job summary

Datamatics Technologies LLC is seeking a talented Full Stack Developer with a strong emphasis on Java and its frameworks to design, develop, and maintain scalable web applications. The role spans frontend and backend, with a focus on backend development using Java, Spring Boot, and related ecosystems.

You will collaborate with cross-functional teams to deliver high-quality, secure software. Responsibilities include building RESTful APIs, implementing authentication mechanisms, and working on

Qualifications

  • Bachelor’s degree in Computer Science, Software Engineering, or related field.
  • 4-7 years of experience as a Full Stack or Backend-focused Java Developer.
  • Strong expertise in Java (8/11/17) and object-oriented programming.
  • Hands-on experience with Spring Boot, Spring MVC, Spring Security, Hibernate/JPA.
  • Experience in building RESTful APIs and microservices architecture.
  • Proficiency in frontend technologies such as React, Angular, or Vue.js.
  • Strong understanding of HTML5, CSS3, and JavaScript/TypeScript.
  • Experience with relational databases (MySQL, PostgreSQL, Oracle) and basic NoSQL (MongoDB).
  • Familiarity with Git, version control workflows, and Agile methodologies.
  • Knowledge of unit testing frameworks (JUnit, Mockito).
  • Understanding of authentication protocols (JWT, OAuth2).

Responsibilities

  • Design, develop, and maintain scalable full stack applications using Java-based technologies.
  • Build robust backend services and RESTful APIs using Java, Spring Boot, and Spring ecosystem.
  • Develop responsive and user-friendly frontend interfaces using modern JavaScript frameworks (React, Angular, or Vue.js).
  • Integrate frontend applications with backend services and third-party APIs.
  • Write clean, maintainable, and efficient code following best practices.
  • Optimize application performance, scalability, and security.
  • Participate in system design discussions and contribute to architecture decisions.
  • Work with databases (SQL/NoSQL) for data modeling, queries, and optimization.
  • Implement authentication and authorization mechanisms (OAuth2, JWT, etc.).
  • Collaborate with DevOps teams for CI/CD pipeline integration and deployment.
  • Troubleshoot, debug, and upgrade existing systems.
  • Participate in code reviews and ensure adherence to coding standards.

Skills

Java
Spring Boot
Frontend frameworks
REST APIs
Git
Unit testing
OAuth2/JWT
SQL/NoSQL

Education

Bachelor's degree in Computer Science/Software Engineering

Tools

Docker
Kubernetes
React
Angular
Vue.js
MySQL
PostgreSQL
MongoDB
Git
Maven/Gradle
AWS
Azure
GCP
JUnit/Mockito

Job description

Datamatics Technologies LLC is seeking a talented Full Stack Developer with a strong emphasis on Java and its frameworks to design, develop, and maintain scalable web applications. The role spans frontend and backend, with a focus on backend development using Java, Spring Boot, and related ecosystems.

You will collaborate with cross-functional teams to deliver high-quality, secure software. Responsibilities include building RESTful APIs, implementing authentication mechanisms, and working on

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