Jhafar S. Email & Phone Number

Arlington, Virginia, United States

I have extensive experience in designing and implementing microservices architectures, leveraging event-driven communication to enhance scalability and decouple service dependencies. I have effectively utilized serverless technologies, such as AWS Lambda and Azure Functions, to optimize deployment efficiency and reduce operational costs. My work includes deploying service meshes like Istio and Linkerd to manage service communication, observability, and security. I’ve also configured API gateways to handle essential cross-cutting concerns such as authentication and rate limiting. By applying polyglot persistence, I ensure optimal performance for each microservice using diverse database technologies. Additionally, I have implemented Command Query Responsibility Segregation (CQRS) to improve system performance, employed distributed tracing tools for comprehensive monitoring and debugging, and utilized resiliency patterns to enhance fault tolerance. My experience extends to developing advanced CI/CD pipelines and integrating self-healing features to improve system robustness.

Dallas, Texas, United States

I utilized Modernizr to create cross-browser compatible HTML5/CSS3 page layouts, ensuring seamless performance across all major browsers and improving load times by up to 20%. By implementing ReactJS for single-page applications and responsive designs, I achieved a 30% improvement in user engagement while reducing page load times. Leveraging Spring Boot and Java 8 lambda expressions, I minimized configuration time by 50% by eliminating boilerplate code. I built microservices using Spring Boot, which enabled a service-oriented architecture, increased system modularity, and reduced deployment times by 40%. Additionally, I created REST Web Services using AWS Lambda, enhancing client data delivery reliability and cutting down latency by 30%. My experience also includes integrating queries to MongoDB databases via HTTP services, optimizing data access and reducing fetch times by 35%. I installed Jenkins for CI/CD, automating build processes, reducing deployment errors by 70%, and significantly improving delivery speed. Finally, I created custom Docker container images for application deployment, which reduced environment discrepancies and accelerated deployment by 60%.

Involved in analyzing the user requirements and specifications for deciding the flex component needed to bedeveloped and their interaction. Involved in the design by preparing UML diagrams using Microsoft Visio tool. Created POJO layer to facilitate the sharing of data between the front end and the J2EE business objects Designed User Interface using HTML, Java Script, Jscript and CSS. Used Struts, Servlets, and JSP for application processing. Used server-side Spring framework and Hibernate for Object Relational Mapping of the database structure createdin Oracle. Java and React, such as building web applications, optimizing performance, or implementing new features. Used Oracle coherence for real-time cache updates, live event processing, in-memory grid computations. Implemented multi-threading for concurrency. Developed Web services by using Restlet API and a Restlet implementation as a RESTful framework. Implemented Message Driven beans to develop the asynchronous mechanism to invoke the provisioning systemwhen a new service request saved in the database used JSM for this.