Full-Stack Engineer Java/Spring Boot + React JS

We are hiring a Principal Full Stack Engineer (Java + React) with 6+ years of experience to design, develop, and maintain scalable software solutions. The ideal candidate will have strong expertise in Java, Spring Boot, and React.

Key Responsibilities

• Develop and Maintain Backend of Applications:
  • Design, develop, and maintain secure, scalable applications using Java and Spring Boot.
  • Implement robust RESTful APIs, SOAP APIs, and microservices for seamless integration with other services.
• Develop and Maintain Web Applications Frontend:
  • Contribute to web frontend development using React JS to build integrated, end-to-end solutions
• Data Interchange and Serialization:
  • Work with JSON and XML for data interchange between services and handle data serialization/deserialization effectively.
• System Design and Architecture:
  • Apply design patterns and architectural best practices to build efficient, maintainable code.
  • Conduct system and component design reviews to ensure compliance with best practices and standards.
• Encryption and Security:
  • Implement and manage encryption/decryption mechanisms to ensure data security and compliance.
  • Ensure secure communication protocols and data storage using encryption standards like AES, RSA, and TLS.
• Production Deployment and Maintenance:
  • Oversee production deployments, ensuring zero downtime and robust rollback mechanisms.
  • Monitor applications post-deployment, handle troubleshooting, and improve system stability.
• CI/CD Pipeline Management:
  • Establish and manage CI/CD pipelines using tools such as Jenkins, GitLab CI, or GitHub Actions.
  • Ensure smooth deployment workflows with automated testing and configuration management.
• Database Management:
  • Develop database schemas, write optimized queries, and manage integrations with relational databases like MySQL, PostgreSQL, or Oracle.
  • Experience with NoSQL databases such as MongoDB, Cassandra, or Redis is a plus.
• HTTP Protocol and Communication:
  • Deep understanding of HTTP, HTTPS, and secure communication standards.
  • Experience with HTTP methods (GET, POST, PUT, DELETE) and status codes.
• Testing and Quality Assurance:
  • Implement unit testing, integration testing, and functional testing using frameworks like JUnit and Mockito.
  • Write and maintain thorough test cases to ensure code quality and functionality.
• Collaboration and Mentorship:
  • Collaborate with cross-functional teams (Product, DevOps, QA) to achieve project goals.
  • Mentor junior developers, fostering best practices in code quality, documentation, and testing.

Required Skills

• Must be able to communicate fluently & effectively in English
• Java: Strong expertise in Java (preferably Java 11 or later versions).
• Spring Framework: Advanced knowledge of Spring Boot, Spring Data, Spring Security, and Spring Cloud.
• React JS: Hands-on experience with React JS frontend framework is a plus
• Design Patterns: Deep understanding of design patterns (e.g., Singleton, Factory, Observer) and their practical applications.
• Microservices Architecture: Experience in developing and managing microservices-based architectures.
• SOAP and REST APIs: Hands-on experience with both RESTful and SOAP APIs.
• JSON/XML: Proficiency in JSON and XML for data interchange and processing.
• HTTP Protocols: Solid understanding of HTTP/HTTPS protocols, methods, and secure communication standards.
• Encryption/Decryption: Experience implementing encryption/decryption for secure data storage and transfer (AES, RSA, TLS).
• CI/CD Pipelines: Proficiency in CI/CD tools like Jenkins, GitLab CI, or GitHub Actions.
• Database Management: Hands-on experience with relational databases (MySQL, PostgreSQL) and familiarity with NoSQL databases (MongoDB, Redis).
• Version Control and Collaboration: Git for version control; JIRA, Confluence, or similar tools for collaboration.
• Testing Frameworks: Proficient with JUnit, Mockito, or other testing frameworks for unit and integration testing.
• Cloud Platforms: Experience with cloud services such as AWS is highly desirable.

Qualifications

Bachelor’s degree in computer science or related discipline

Preferred Qualifications

• Experience with containerization (Docker) and orchestration tools (Kubernetes).
• Exposure to Agile/Scrum methodologies.

We have an amazing team of 700+ individuals working on highly innovative enterprise projects & products. Our customer base includes Fortune 100 retail and CPG companies, leading store chains, fast-growth fintech, and multiple Silicon Valley startups.

What makes Confiz stand out is our focus on processes and culture. Confiz is ISO 9001:2015 (QMS), ISO 27001:2022 (ISMS), ISO 20000-1:2018 (ITSM), ISO 14001:2015 (EMS), ISO 45001:2018 (OHSMS) Certified. We have a vibrant culture of learning via collaboration and making workplace fun.

People who work with us work with cutting-edge technologies while contributing success to the company as well as to themselves.

To know more about Confiz Limited, visit: https://www.linkedin.com/company/confiz-pakistan/