Abhijeet Kumbhar

• Led the architecture and integration of Stripe payment gateway for AutoScout24 Smyle’s online car sales platform, achieving >99% payment success rate.
• Championed resilient event-driven architecture with the Outbox pattern and strategic use of Stripe metadata for reliable order reconciliation.
• Owned the end-to-end Markup Pricing project, collaborating across product, finance, and legal, delivering €200+ additional revenue per order.
• Delivered DDoS protection architecture via AWS WAF, Shield, CloudFront, securing core APIs from malicious traffic.
• Designed scalable taxonomy import pipelines using AWS Batch for structured data ingestion.
• Developed critical REST APIs for taxonomy services powering vehicle listings across AutoScout24’s platform.
• Conducted knowledge-sharing sessions on payment systems, resilient architectures, and AWS best practices.
• Provided technical leadership through architecture guidance, code reviews, mentorship, and technical interviews.

Tech Stack: Java 21, Spring Boot, jOOQ, AWS (RDS Postgres, SQS, S3, CDK, WAF, Shield, CloudFront, Batch), Kafka, Stripe, Datadog, GitHub, Jira

• Designed and built microservices architecture, enabling better scalability and flexibility within the application ecosystem.

• Solution design and Development for complex Credit card system to integrate over the Zalando Payments microservice and event driven architecture to handle various credit card flows such as NO-3DS, 3DS2 and 3DS1. Handling of fall back logic with Command design pattern.
• Solution Design, development and monitoring of Local Payment methods like MobilePay for Denmark and Finland and VIPPS for Norway. Integrated over PSP provider to handle the payments initiation, captures and refunds.
• Integration with multiple PSP providers for handling different payment method traffics for Zalando checkout.
• Tech stack : Java 11, AWS dynamo DB for persistence and AWS SQS for asynchronous processing of the post orders. Graphana for monitoring, Lightstep for distributed tracing and Scaly for distributed logging, GitHub, Jira.

• Developed Spring REST API for OpenWrap Header Bidding.
• Tech stack : Java, SpringBoot, MySQL, Docker, Kubernetes, Jenkins

• Development for projects like Tablet Banking and Limits. Designed Backend APIs for Tablet banking to support Account opening for multiple currencies and offering credit card for Emirates END customers. Integration with the core Banking APIs in microservice architecture.
• Tech stack: Java, SpringBoot, MongoDB, Docker, Kubernetes, Openshift, Jenkins, SonarQube, Checkmarx

• Developed Credit card Account Verification microservice for Mastercard CORE legacy platform to communicate with Netflix systems.
• Developed Spring Boot microservice Pivotal Cloud Foundry Solution for Mastercard CORE Payments System.
• Performed deployments using Jenkins on Pivotal Cloud Foundry. Implemented CI/CD, blue-green deployments using build/deploy tools as Jenkins over PCF cloud.
• Tech stack: Java, Spring boot, Jenkins, PCS cloud, Bitbucket.

• Implemented InterBank Fund Transfer NEFT System for India's largest Bank.
• Integration over IBM MQ and Message Broker to connect with the Core Banking systems.
• Developed Ticketing system for tracking the progress of SBI Online Database backups on daily basis.
• Supported Oracle Databases used by Core Banking systems
• Tech stack: Java, IBM MQ, Message Broker, Oracle Database, SVN