Abhay Mathur

Software Engineer

Southwest Airlines

07.2019 - 06.2024

For a high-traffic integration microservice, collaborated with stakeholders & Product Manager, managed the full development lifecycle, to achieve the business requirement of automating aircraft maintenance record transmission to external vendor for FAA compliance, demonstrating a product mindset by connecting engineering solutions to critical business goals within an agile Java/Spring environment.
Proactively Identified and led the effort to resolve a critical performance bottleneck, reducing processing time by 80%, by redesigning its single-threaded architecture to a multi-threaded model. It involved implementing concurrency in a Producer-Consumer architecture, and file-based locking mechanism to ensure data integrity during file processing.
Utilized Grafana to monitor performance metrics and analyze the stability of the redesigned architecture, proactively troubleshooting production environment issues, reducing system downtime to 20%.
Designed and implemented a RESTful API using JSON payloads for data exchange with Jasper Servers, incorporating pagination for efficient work order retrieval. Implemented appropriate HTTP status codes to ensure reliable communication and efficient data transfer.
Implemented an event-driven Kafka messaging system for routing of SAP-orders, enabling asynchronous, reliable, scalable, and fault-tolerant communication
Enhanced the database schema to support new functionalities, including, and optimized queries by implementing 2 indexes.
Achieved 95% code coverage by implementing JUnit tests using Mockito, ensuring robust performance and reliability.
Created and configured a Jenkins CI/CD pipeline, leveraging a declarative Jenkinsfile (DSL) with embedded Groovy scripting for complex logic, to streamline build, test, and deployment processes.
Engineered Docker-based local development environments, defining Dockerfile and Docker Compose configurations to ensure consistent and reproducible setups across development teams, streamlining onboarding and minimizing environment-related issues.
Led the development of an automated system for Work-order-completion report transmission to 5 MRO vendors, architecting a scalable solution that dynamically extracted and routed data based on location and work package name. Resulted in a 90% reduction of manual workload and improved operational accuracy.
Developed and maintained comprehensive technical and design documentation, including Confluence pages, data-flow diagrams, and architecture diagrams, to mentor, share knowledge and ensure understanding of the system.
Orchestrated a comprehensive tech-stack upgrade, enhancing system performance and mitigating 12 security vulnerabilities by updating these components to newer versions: Tomcat, Gradle, JUnit, Mockito, TBS, Log4j, Oracle19c, Java, CXF.
Developed a Health-Checker, ensuring operational resilience by verifying downstream component availability during high-load outages. Increased system reliability, minimizing 50% downtime and maintaining seamless integration.