Allaudheen Shaik

Implemented secure Spring Boot 3 REST APIs using Java 17 to support payroll processing and employee account services, enforcing RBAC with Okta across 7 internal employer-facing applications handling sensitive compensation data. Developed Angular 16 user interfaces with reactive forms and REST integration, supporting employee onboarding and payroll inquiry workflows accessed by 1,200+ daily users across HR, payroll, and client service teams. Integrated Apache Kafka for asynchronous payroll and tax event processing, enabling near real-time data propagation and reliably handling 1M+ events per processing cycle during peak payroll execution windows. Provisioned standardized AWS EC2 environments using CloudFormation templates, enabling consistent microservice deployments and reducing environment setup effort across 6 distributed development teams. Executed backend and API testing using JUnit 5 and Mockito, validating service behavior and preventing 31 regression defects from progressing into downstream integration and user acceptance testing. Coordinated Agile Scrum delivery using Jira and Confluence, aligning backend, frontend, and QA contributors across 8 cross-functional squads to meet sprint commitments for regulated payroll release

Delivered Spring Boot backend services secured with OAuth 2.0 and JWT, exposing REST APIs that supported pharmacy order and inventory workflows used by 6,000+ daily users across internal healthcare systems. Refactored selected legacy JSP-based screens into React 17 components, deploying through Azure App Service to stabilize UI releases and reduce defect resolution time from 9 days to 3 days. Implemented CI/CD pipelines using Jenkins and Docker, enabling consistent builds and controlled deployments of 20+ services to Azure Kubernetes Service with predictable release schedules. Optimized PostgreSQL and Oracle queries through Spring Data JPA tuning, sustaining reliable processing for 4M+ prescription records across billing and fulfillment applications. Monitored production systems using Azure Monitor and Splunk, supporting root-cause analysis and resolving 22 production issues within defined service-level expectations.

Architected a Java 17 Spring Boot microservices platform supporting 40+ marketing analytics workflows, integrating React 17 dashboards and AWS EKS deployments that stabilized daily processing for 18M customer records. Engineered responsive Angular 16 components with TypeScript and Bootstrap while exposing RESTful APIs via AWS API Gateway, reducing page load latency to 2.1 seconds across 9 internal products. Operationalized Apache Kafka event streams and DynamoDB persistence on AWS EC2 and Lambda, enabling real-time campaign triggers with 25+ downstream API integrations. Embedded Machine Learning (ML) inference using Python models deployed on AWS Lambda and consumed by Java services, improving audience segmentation across 12 active campaigns without increasing infrastructure cost.

Developed Java Spring MVC services supporting booking availability and pricing workflows, enabling reliable search and reservation flows across high-traffic global travel markets with consistent production stability. Designed modular React user interfaces using reusable components and CSS3 styling, improving host onboarding task completion times from 18 minutes to 11 minutes across core listing management screens. Deployed containerized applications using Docker and Kubernetes on AWS, supporting scalable microservice execution across staging and production environments used by multiple regional teams. Optimized MySQL and MongoDB data models through indexing and query refactoring, sustaining read- and write-heavy workloads during seasonal traffic spikes without degrading response times. Implemented asynchronous communication using RabbitMQ to decouple payment and notification services, reliably processing 15M+ background messages monthly across booking lifecycle events. Maintained code quality and security standards using SonarQube analysis and Git workflows, reducing technical debt accumulation and improving review turnaround across peer engineering teams. Supported junior engineers through code reviews and technical walkthroughs in Java, React, and cloud fundamentals, accelerating onboarding for 5 new hires within their first month on active projects.