Senior Java Backend Developer – Microservices & APIs

Winzons; India; On-site; INR 1,800,000 - 2,800,000; Full time

Job summary

Cantik Technologies Pvt. Ltd. is seeking a Senior Java Backend Developer to join our fintech software team in India. You will design, develop, and maintain core backend systems, collaborating with product managers, frontend developers, and QA engineers to deliver scalable and secure solutions.

You will work on microservices, RESTful APIs, and database optimization, with a strong emphasis on security and code quality. This role demands hands-on leadership and strong collaboration across teams.

Qualifications

• Bachelor’s or Master’s degree in Computer Science or related field.
• 8–12 years of experience in Java backend development.
• Experience with microservices, RESTful APIs, and database design.
• Proficiency with Hibernate (ORM) and security practices (OAuth).

Responsibilities

• Design and develop robust microservices using Java and related technologies.
• Implement and maintain RESTful APIs for frontend and third-party integrations.
• Optimize database queries and schema for performance and scalability.
• Apply security best practices including authentication/authorization (OAuth).
• Participate in code reviews and troubleshoot production issues.
• Contribute to automated testing frameworks to ensure quality.

Skills

Java development

Microservices

ORM Hibernate

OAuth security

Debugging skills

Communication

Education

Bachelor’s or Master’s in CS or related field

Job description

Company Name: Cantik Technologies Pvt. Ltd.
Job Role: Senior Java Backend Developer
Work Type: Full-Time
Experience: 8-12 Years
Qualification: Bachelor’s or Master’s Degree in Computer Science or related field
Location: Pune/Hyderabad
Industry: Fintech / Software Technology

Role Overview

As a Senior Java Backend Developer at Cantik Technologies, you will be a key contributor to the design, development, and maintenance of our core backend systems. You will collaborate closely with product managers, frontend developers, and QA engineers to deliver high-quality, scalable, and secure solutions. Your work will directly impact the performance and reliability of our platform, ensuring seamless experiences for our clients and their customers.

Key Responsibilities

• Design and develop robust and scalable microservices using Java and related technologies to support our growing platform.
• Implement and maintain RESTful APIs for seamless integration with frontend applications and third-party services.
• Optimize database queries and schema design to ensure optimal performance and scalability.
• Implement security best practices, including authentication and authorization mechanisms (OAuth), to protect sensitive data.
• Participate in code reviews to ensure code quality and adherence to coding standards.
• Troubleshoot and resolve production issues in a timely manner to minimize downtime and maintain service availability.
• Contribute to the development of automated testing frameworks to ensure the quality and reliability of our software.

Required Skillset

• Demonstrated expertise in Java development, with a deep understanding of object-oriented programming principles and design patterns.
• Proven ability to design and implement microservices architectures, including experience with service discovery, API gateways, and message queues.
• Strong proficiency in using Hibernate or other ORM frameworks for database interactions.
• Solid understanding of security principles and experience implementing authentication and authorization mechanisms, including OAuth.
• Excellent problem-solving and debugging skills, with the ability to analyze complex issues and develop effective solutions.
• Ability to communicate effectively with both technical and non-technical stakeholders, and to work collaboratively in a team environment.