Java Fullstack Developer

Job Overview:

We are seeking an experienced and highly skilled Java Fullstack Developer to join our dynamic team. The ideal candidate will have a strong background in Java, Kafka, Python, AWS, CICD, Microservices, and Unit and Integration Testing. This is an exciting opportunity for someone with a deep understanding of modern software development practices and a passion for delivering scalable, high-performance solutions.

Key Responsibilities:

• Lead and participate in the design, development, and deployment of microservices-based solutions.
• Develop and maintain robust, scalable, and efficient applications using Java, Python, and Kafka.
• Collaborate with cross-functional teams to define, design, and implement solutions for both front-end and back-end systems.
• Design and implement Unit and Integration tests to ensure high code quality and functionality.
• Leverage AWS services to design and deploy cloud-based applications.
• Optimize application performance, monitor infrastructure, and ensure security best practices are followed.
• Drive continuous improvement within the development team and advocate for the adoption of best practices in code development, version control, testing, and deployment.
• Troubleshoot, debug, and resolve issues in production and pre-production environments.
• Participate in code reviews and mentoring of junior team members.
• Contribute to the design and architecture of new features and enhancements.

Mandatory Skills:

• The Full Stack Developer will be responsible for designing, developing, and maintaining high availability,Tier 1 cloud-based applications on AWS.
• This role requires expertise in backend (Java,Python, microservices, Kafka, AWS Lambda) and frontend (React.js, Redux, HTML,UI/UX) development, with a strong focus on infrastructure automation (Cloud Formation,Terraform, Terragrunt), observability, monitoring, and performance optimization.
• Hands-on experience with event-driven architecture, API testing, and CI/CD pipelines, implementing shift-left testing (BDD/TDD) methodologies.
• Develop and maintain Artificial Intelligence/Machine Learning (AI/ML)-powered web-
• Design and implement scalable APIs and microservices to support AI-driven functionalities.
• Optimize databases, cloud infrastructure, and server-side logic for efficiency and scalability.
• Develop interactive and responsive UI components using modern frontend frameworks
• (React, Vue, Angular, etc.).
• Implement authentication, authorization, and security best practices.
• Troubleshoot, debug, and enhance application performance.

Good-to-Have Skills:

• Experience with Node.js and React.js for full-stack development.
• Familiarity with DevOps practices, including CI/CD pipelines and automation tools (Jenkins, GitLab CI, etc.).
• Understanding of containerization and orchestration technologies like Docker and Kubernetes.
• Familiarity with Agile methodologies and experience working in an Agile environment.

Why QualiZeal

• Award-Winning Workplace: Certified as a Great Place to Work® and recognized by ET NOW as the Best Organization for Women in 2025.
• Proven Engagement: Industry-recognized client and employee Net Promoter Scores (NPS).
• Growth-Focused Culture: Equal-opportunity employer with a strong emphasis on leadership development, training, and continuous learning.
• Flexible & Supportive Environment: We value empathy, recognize contributions, and support work-life balance.
• Transparent Leadership: Open-book management with a collaborative, inclusive approach.
• Rapid Growth: 850+ professionals strong and on track to reach 3000+ employees — an exciting time to join.

About QualiZeal:

QualiZeal is North America's fastest-growing independent digital quality engineering services company. With a diverse portfolio of digital transformation services encompassing Quality Engineering, Digital Engineering, Advisory and Transformation, and Emerging Technology Testing, QualiZeal empowers organizations of all sizes globally to achieve quality excellence and sustainable market leadership. Trusted by 70+ global enterprises and with a headcount of 850+ elite software quality engineers, QualiZeal is pioneering AI-enabled Quality Engineering innovation. QualiZeal has consistently maintained an outstanding client Net Promoter Score (NPS) of over 75, reflecting its unwavering commitment to client satisfaction and service excellence.