Jessica P.
Back-end and Systems Engineer

Skills

Node.js

Spring Boot

Github

Java

Javascript

Postgresql

Mysql

Amazon Aws

Angular

React

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Bio

Professionally engaged in the IT sector since 2016, an established career has been developed with a primary focus on backend development, while maintaining active involvement in frontend technologies. Educational achievements include a comprehensive course in Computer Networks completed between 2017 and 2019. Professional experience includes freelance work from 2019 to 2021, during which proficiency was gained in WordPress, WooCommerce, and various related applications.

Proficient in MySQL and SQL, alongside expertise in PHP 7, jQuery, Ajax, and JavaScript. Competence extends to Java versions 6 through 11, incorporating tools and frameworks such as Maven, Hibernate, JSP, JPA, JDBC, JAX-RS, and Java EE/SE. Version control and collaboration are managed using Git platforms including GitHub and GitLab. Familiarity with Docker, SonarQube, Bamboo, and Bitbucket is also established.

Extensive knowledge of both Windows and Linux systems is complemented by skills in computer network administration and implementation. Capable in managing CPanel and hosting servers, with a strong grounding in DDD, TDD, and XP methodologies. Project management and agile methodologies are facilitated using Jira, Confluence, Scrum, and Kanban. AWS services competence includes basic understanding of S3, VPC, ALB, EC2, RDS, caching, CDN, IAM, Route 53, and VPN/networking.

Network administration skills cover TCP-IP, Windows and Linux server management, DHCP, Proxy, VLANs, Samba, DNS, NAT, VPN, and both IPv4 and IPv6. Messaging services knowledge extends to RabbitMQ, Kafka, and ActiveMQ. Expertise in microservices architecture, API development, focusing on SOAP and REST, and proficiency in frameworks, clean code, SOLID principles, endpoints, and integrations is noted.

Continuous integration and delivery (CI/CD) are implemented through DevOps practices using tools like Bamboo and Bitbucket. Additionally, unit and integration testing leveraging tools and frameworks such as Octane and Juniper, and containerization through Docker and Kubernetes are areas of competence.

Exposure to technologies such as Angular, REST APIs, Node.js, Spring, Spring Boot, MariaDB, MongoDB, and Struts has been acquired through work projects and studies. Familiarity with additional tools including Mailman and SoapUI, and server environments like IBM WebSphere, Apache Tomcat, JBoss, and WildFly has been developed.

Database management with tools such as MySQL Workbench, PhpMyAdmin, PostgreSQL, DBeaver, and DB2 are included within the expertise. Cloud expertise is evidenced by certifications such as Oracle Cloud Infrastructure Foundations Associate and Oracle Cloud Data Management Foundations Associate. Achievements in AWS cloud services include accreditations in Cloud Economics, Sales (Business and Technical), and SAP on AWS (Business and Technical).

Solutions Analyst II
2/1/2023 - 2/1/2024

Java Developer in the Banking Sector - Achieved expertise in the development of APIs and migration of SOAP services to REST. Skilled in resolving bugs and developing microservices. Utilized Java 11 and Java 8, with significant experience using IBM tools and Sonar for code quality. Worked extensively on REST-based microservices using Spring Boot and JSON for data interchange. Interacted with COBOL programs and CICS in mainframe environments. Proficient with IBM Integration Toolkit, Eclipse, DBeaver, Postman, IntelliJ, and Bamboo for various development and integration tasks. Operated within Agile frameworks using Scrum and Kanban methodologies, tracked work in Jira and Confluence, and managed code repositories with Bitbucket and Git.
Solutions Analyst I
4/1/2022 - 2/1/2023

Gained significant experience in application development and maintenance within a banking system environment using Java 6. Developed and maintained web applications using JSP and JPA, with robust database interaction through JDBC and Hibernate. Utilized JEB for efficient code development and debugging. Implemented front-end functionalities employing JavaScript, enhancing the user interface and experience. Leveraged IBM WebSphere for application server management, ensuring seamless deployment and integration of applications. Demonstrated expertise in using Struts framework for creating extensible and maintainable project structures.
Jr. PHP Assistant
2/1/2022 - 3/1/2022

Developed proficiency in PHP and related frameworks while working on an ERP system. Gained extensive hands-on experience with MySQL for database management, ensuring optimal data storage and retrieval efficiency. Improved technical expertise in front-end technologies such as HTML, CSS, JavaScript, and jQuery to create responsive and user-friendly interfaces. Utilized Git for version control, streamlining collaborative development and code maintenance. Enhanced understanding of system architecture and software development life cycle, contributing to the successful implementation and maintenance of various ERP modules. Demonstrated problem-solving skills by debugging and resolving application issues, optimizing performance, and enhancing functionality based on user feedback and requirements.
Freelance web developer
1/1/2020 - 1/1/2022

Gained expertise in website creation and the maintenance of hosting servers. Utilized HTML, CSS, JavaScript, and various web frameworks to develop responsive and user-friendly websites. Managed backend development and server-side scripting with PHP, Python, and Node.js. Administered and optimized hosting environments using Apache, Nginx, and IIS. Ensured server security and performance through regular updates and patches, as well as conducted routine backups and monitoring. Facilitated collaborative code maintenance and version control using Git. Demonstrated strong problem-solving skills in troubleshooting server issues and improving site performance.
WordPress Developer
3/1/2019 - 8/1/2021

Managed the end-to-end process of website creation, including design, development, and deployment. Gained expertise in HTML, CSS, and JavaScript, and worked extensively with frameworks such as React and Angular. Ensured responsive design and cross-browser compatibility, while optimizing website performance for speed and SEO. Maintained hosting servers, ensuring 99.9% uptime, and implemented security measures such as firewalls, SSL certificates, and regular security audits. Utilized tools like Apache, Nginx, and Docker for server management. Automated deployment and maintenance tasks using scripting languages such as Bash and tools like Jenkins. Employed Git for version control to ensure streamlined code collaboration and project management.