Job description
Backend Development
- Design, develop and maintain backend services using Java and Spring Boot.
- Build reliable and scalable REST APIs.
- Develop integration workflows involving orders, inventory, fulfilment, tracking and product data.
- Write clean, reusable and maintainable code.
- Implement validations, exception handling, retry mechanisms and failure recovery.
- Optimise existing modules for performance, reliability and scalability.
- Participate in architecture and technical design discussions.
- Refactor legacy code where required without affecting existing customers. API and Integration Development
- Integrate with external platforms using REST and SOAP APIs.
- Work with API authentication mechanisms such as OAuth 2.0, API keys and access tokens.
- Handle pagination, rate limits, retries and API failures.
- Design and consume webhooks.
- Analyse API requests, responses and error messages.
- Develop data mapping and transformation logic between different platforms.
- Ensure integrations are idempotent and do not create duplicate transactions.
- Maintain compatibility with third-party API changes and version upgrades. Production Troubleshooting
- Investigate production incidents using application logs, database records and monitoring tools.
- Identify root causes instead of applying temporary fixes.
- Analyse performance issues, memory problems, connection pool exhaustion and slow database queries.
- Troubleshoot intermittent API, webhook, scheduler and queue-related failures.
- Provide technical findings to support, QA and operations teams.
- Implement permanent corrective and preventive actions.
- Participate in critical incident resolution when required. Database Development
- Design and maintain MySQL database structures.
- Write and optimise SQL queries.
- Create appropriate indexes and analyse execution plans.
- Handle large-volume data processing efficiently.
- Identify duplicate, inconsistent or incomplete records.
- Work safely with production data and database migrations.
- Understand transactions, locking, isolation levels and concurrency. Code Quality and Reviews
- Review code written by other developers.
- Identify defects, security issues, performance risks and maintainability concerns.
- Enforce coding standards and engineering best practices.
- Write unit and integration tests.
- Ensure adequate test coverage for critical workflows.
- Participate in pull-request reviews and release validation.
- Mentor junior and mid-level developers. Performance and Scalability
- Design systems that can process high-volume orders and API transactions.
- Improve scheduler, batch and queue-processing efficiency.
- Identify memory, CPU, thread and database bottlenecks.
- Design asynchronous processing where appropriate.
- Ensure that services fail safely and recover correctly.
- Support horizontal and vertical scaling decisions. Cross-Functional Collaboration
- Work closely with product analysts, business analysts, QA engineers and support teams.
- Understand business requirements and convert them into technical solutions.
- Clarify technical feasibility, dependencies and risks.
- Support QA in preparing technical and integration test scenarios.
- Provide technical estimates and implementation plans.
- Communicate delays, risks and blockers clearly.
Requirements
- Work from the Noida office
- Participate in production incident resolution when necessary
- Collaborate with teams working on customer-facing integrations
- Follow secure development and data-handling practices Benefits 5 Days Working (Monday to Friday) Near Sector 62 Metro Station, Noida Medical Insurance Positive and Healthy Work Environment Learning and Growth Opportunities