1. Frontend Development. ● Designed and developed scalable, responsive web & mobile applications using React, Flutter, Angular 2/4, HTML5, CSS3, JavaScript (ES6+) / Typescript, and Bootstrap. ● Implemented Redux for state management and React Router for navigation. ● Built reusable UI components and optimized performance for cross-device compatibility. ● Built Web3 -integrated UIs (WalletConnect, SIWE) for cross-chain dApp s using React/Angular. ● Developed gas-optimized transaction fl ows with Ethers.js. 2. Backend & API Development. ● Developed RESTful APIs and microservices using Node.js, Express.js, and Python (Django, Tornado). ● Integrated third-party services (PayPal, BlueSnap, OKTA) and payment gateways. ● Designed JWT -based authentication and documented APIs with Swagger. ● Designed payment roll smart contracts (Solidity) with multi-token support. ● Created chain-agnostic APIs to bridge EVM /non-EVM networks (LayerZero, Wormhole). ● Integrated AA (ERC-4337) for seamless wallet interactions. 3. Cloud & DevOps. ● Deployed and managed AWS serverless architectures (Lambda, API Gateway, DynamoDB, S3, CloudFormation). ● Automated infrastructure with Terraform, Ansible, and CI/CD pipelines (Jenkins, Bamboo, Docker). ● Orchestrated containerized services using Kubernetes and monitored systems with CloudWatch/Splunk. 4. Database & Data Engineering. ● Worked with NoSQL (MongoDB, CouchDB) and SQL (PostgreSQL, MySQL, RDS). ● Optimized queries and implemented ETL/ELT processes for data pipelines. ● Utilized Elasticsearch for search functionality and real-time analytics. 5. Machine Learning & Data Science. ● Developed ML models (scikit-learn, TensorFlow) for customer ticket categorization. ● Applied NLP, Computer Vision (CNN, LSTM), and predictive analytics (Pandas, NumPy). ● Built data visualization tools with D3.js and Matplotlib. 6. Leadership & Collaboration. ● Led teams of 5+ engineers, mentored junior developers, and drove Agile work fl ows. ● Architected high-availability systems handling millions of daily requests. ● Collaborated cross-function ally with product, design, and QA teams.

1. Frontend Development. ● Developed dynamic web applications using JSP, JavaScript, AJAX, HTML5, CSS3 with cross-browser compatibility. ● Built single-page applications (SPAs) using AngularJS, Backbone.js, Bootstrap, and jQuery Mobile. ● Implemented responsive designs with Media Queries, Bootstrap, and CSS3 gradients/animations. ● Created interactive data visualizations using c3.js/d3.js for real-time charting. ● Modernized legacy systems to Angular 4 + TypeScript for improved modularity. 2. Backend & Full-Stack Development. ● Designed RESTful APIs using Node.js, Express.js, and Java (Spring Batch, Servlets, JSP). ● Developed ETL pipelines for batch processing (daily/monthly jobs via Cron). ● Integrated databases (MySQL, MongoDB) with stored procedures, triggers, and ORM. ● Built SOA infrastructure (Application Servers, ESB) deployed on Apache Tomcat. 3. Cloud & DevOps. ● Automated AWS infrastructure (CloudFormation, CloudWatch, CloudTrail). ● Managed S3, RDS, Elastic Load Balancing, Route53 for scalable deployments. ● Configured CI/CD pipelines with Git, GitBash, and IntelliJ IDE. 4. Testing & Quality Assurance. ● Conducted unit testing with JUnit, Mockito, Mocha, Karma. ● Performed end-to-end testing using Jasmine, Karma. ● Enforced code quality with JSHint and Log4j for exception tracking. 5. Agile & Collaboration. ● Led Agile Scrum workflows (daily standups, sprint reviews) via Jira. ● Mentored junior developers and conducted code reviews. ● Partnered with BSAs to translate business requirements into technical solutions. 6. Mobile Development. ● Built C#/.NET 4.0 mobile apps using MVC 3.0, jQuery Mobile, HTML5. 7. Additional Expertise. ● WordPress customization (PHP, HTML/CSS). ● MEAN stack prototypes (MongoDB, Express, Angular, Node.js). ● AWS serverless architectures (Lambda, API Gateway).

● Developed user-facing applications using Vue.js and designed features with Angular and CodeIgniter. ● Built scalable Django applications, leveraging Django Sessions and management. ● Integrated MySQL as a backend for Laravel and WordPress CMS, supporting REST API data flow. ● Designed application architecture using Laravel, React, PHP, CSS, JavaScript, and HTML for compliance. ● Customized WordPress with plugins, themes, and hooks, and extended functionality via REST APIs. ● Wrote JavaScript for dynamic form validation, multi-window handling, and real-time updates. ● Enhanced backend logic with PHP (CodeIgniter, Laravel) and Python (Django, Flask). ● Engaged in tech communities through meetups, conferences, and developer events.

● Worked in the SDE department developing core function for Confidential ’s XClarity resource management software. This work centered on developing thread safe code, Java Servlets, business logic and designing a new relational database implementation. ● Continued work in the SDE department enhancing a Java EE, Websphere Application Server, and DB2 application. This work focused on transitioning these tools to Confidential. This transition included converting a single threaded firmware publishing tool to a multithreaded application using the Java Callable Interface. It also included migrating our DB2 database and schema to Confidential new lab and credential system.