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Around 4 years of Professional experience in Design, Development, Maintenance, and Implementation of Enterprise applications using Java, J2EE, Spring, Spring Batch, Microservices Technologies and worked on Java 6/8/11 versions. 
 Expertise in all stages of the Software Development Life Cycle (SDLC) as well as working in an AGILE Methodologiesbased development environment, participating in spring/iterations and SCRUM meetings. 
 Strong fundamentals in Object-Oriented Programming, Core Java and experience in developing application components using frameworks like Spring, Hibernate. 
 Good Knowledge and Hands-on experience in building Enterprise Applications and Distributed Systems using technologies such as Core Java, Servlets, Mule ESB, JDBC, JSP, XML Spring JDBC, DAO, Spring Security (OAuth2, JWT) and Spring Web framework. 
 I have a strong experience with the features introduced in Java 11. I have effectively used lambda expressions, functional interfaces, and stream API. 
 Proficient in leveraging Java 11's improved garbage collection algorithms, lambda expressions, and streams to optimize application performance. 
 Experience in Implementing design patterns like MVC, Singleton, Business Delegate, Factory, and Service Locator. 
 Strong experience in Spring Framework modules such as Spring MVC, IOC, AOP, JDBC, JTA, IO, Spring Dashboard, Spring Boot, Spring Microservices, Spring REST, Spring Eureka, and Spring Netflix. 
 Designed and implemented the enhanced development platform using the Angular 14 framework by doing POC. 
 Implemented Angular 14 enhancements to optimize application performance and improve user experience. 
 Experience in using Dependency Injection and AOP features of Spring Framework, while developing the service layer. Prepared Class Diagrams & Sequence Diagrams for Detailed Design. 
 Developed APIs and REST API proxy using APIGEE Edge for sending mobile notifications, implemented payment gateway on APIGEE Edge API Management Platform. 
 Experience in working with web servers like Tomcat 8, Web Sphere 8.x/9.x, JBoss7.1.0, Web Logic 12. 
 Experience in Web Development using JavaScript frameworks like JQuery, Bootstrap, DOM, AJAX, and MVC. 
 Experience in Designing and building dynamic and user-interactive websites using HTML5, CSS4, JavaScript, TypeScript, Angular 14/8/4/2, Express.js, Bootstrap, Node.js, and jQuery. 
 Experience in integrating applications with messaging platforms Apache Kafka, ActiveMQ, and RabbitMQ. 
 Proficient in using Amazon Web Services (AWS). Experience focusing on services like EC2, Elastic Beanstalk, Cloud Watch, Cloud Front, Cloud Formation, IAM, S3, RDS, Elastic Cache, SNS, SQS. 
 Experience in creating Docker container images, pushing images, and integration of Spring Boot. 
 Hands-on experience working with Kubernetes to manage related, distributed cluster components. 
 Experience with CICD-Ant, Maven, Gradle, Jenkins, Concourse, CVS, Git, Git Hub. 
 Experience in using JAVA/J2EE technologies like JSP, Servlets, JPA, JMS, JDBC, JAX-WS, JAX-RS, etc. 
 Experience in database modeling, design, and development of PL/SQL stored procedures, and packages in relational databases: Oracle / 11g/12c/19c, SQL Server, DB2, PostgreSQL, and My SQL. 
 Experience in working with No SQL databases like Mongo DB, Cassandra. 
 Experience of JavaScript testing framework like Jasmine, QUnit , Karma, Mocha and Chai.

Results-driven and innovative Fullstack Developer with a proven track record in both corporate and entrepreneurial settings. Adept at developing end-to-end solutions, I bring extensive experience in web and mobile application development, specializing in technologies such as Java (Spring Boot), Angular, PHP (Userfrosting, Slim, Symfony), and Flutter.

In my role at the Volante Technologies as a Fullstack Developer, I effectively collaborated with cross-functional teams across international borders, ensuring seamless communication and efficient project delivery. I demonstrated expertise in API design and consumption, cloud services, and identity and access management.

As the Founder and Lead Developer of eduSmart App, I successfully navigated the entire development lifecycle of a comprehensive school management platform. This entrepreneurial venture showcased my ability to independently lead a project from conceptualization to deployment, highlighting my proficiency in PHP technologies, MySQL, and mobile app development with Flutter.

My prior experience as a Developer Analyst at the Asociación Nacional de Concesionarios VW further enriched my skill set. I played a key role in developing web applications for a network of dealerships and prominent clients such as DHL and Pepsico. This experience honed my ability to create tailored solutions that meet the diverse needs of clients and end-users.

I am well-equipped to contribute my technical expertise to challenging and dynamic projects. My high ability to learn new technologies and adapt to change and commitment to delivering high-quality solutions, paired with effective communication skills, positions me as a valuable asset in fostering innovation and driving project success.

Highly accomplished Senior Software Full Stack AI Developer with 4.7 years of hands-on experience in designing, building, and delivering scalable, high-performance software solutions. Currently spearheading the development of AI-driven chatbots and intelligent assistants at a product-based organization, leveraging cutting-edge technologies including OpenAI, Gemini AI, ElevenLabs, AKOOL, Replicate, and n8n.
Expert in building conversational AI systems with multimodal capabilities such as text, voice, image, and real-time video interactions, enabling richer and more engaging user experiences. Proven track record of delivering complex projects within tight deadlines while maintaining high standards of code quality, security, and performance.
Highly adept in agile development environments, with strong collaboration and leadership skills, driving innovation through workflow automation (n8n) and AI orchestration. Passionate about building AI-first products that enhance customer engagement, operational efficiency, and business value.

To secure a position where technical and personal strengths can be best utilized.

Frances Emmanuel Callado

Summary

Overview

Work History

Contractual Fullstack Developer

Personal Web Developer and Research Assistant

Web Development Intern

Customer Service Associate

Computer Lab Assistant

Education

Bachelor of Science - Information Systems

Bachelor of Science - Computer Engineering

Skills

Accomplishments

Timeline

Contractual Fullstack Developer

Personal Web Developer and Research Assistant

Web Development Intern

Customer Service Associate

Computer Lab Assistant

Bachelor of Science - Information Systems

Bachelor of Science - Computer Engineering

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