Guissella J. Email and Phone Number

• Develop and promote a new internal design system utilizing strict TypeScript standards, internationalization (i18n), theming, and Storybook implementation, ensuring adherence to FIGMA design specifications.• Manage the development of the internal design system, effectively balancing ongoing and new projects, maintaining a prioritized backlog, and crafting detailed technical stories in JIRA.• Collaborated closely with cross-functional stakeholders to align on project expectations and timelines, ensuring successful delivery and adherence to deadlines.• Mentor developers in writing unit tests, promoting best practices for high test coverage and compliance with accessibility guidelines across multiple React and legacy JSX micro-frontends (MFEs) using Jest and GitHub.• Configure and optimize DynamoDB settings within the AWS environment to provide support in a highly configurable and complex ecosystem.

• Collaborated with pod members to enhance end-user independence and efficiency by implementing role-based feature flags and event tracking, utilizing React, SASS, and Datadog for insightful workflow analysis.• Partnered with product managers, designers, and back-end developers to construct features and optimize workflows, delivering verified knowledge across React, Guru’s Slack app, and Chrome extension, while adhering to FIGMA design standards.• Isolated react-query into custom hooks to facilitate migration from Fluxxor, improving code maintainability and performance.• Participated in build cycles focused on reducing customer pain points by actively monitoring Slack channels, vetting incoming tickets, and maintaining close communication with technical support liaisons to address issues promptly.• Prepared for testing sessions by developing detailed personas and expectations in test plans; wrote comprehensive user stories and bug reports based on findings to ensure timely project completion.• Communicated regularly via Zoom/Slack with product managers and designers to ensure FIGMA designs align with internal styling components and proactively address any potential technical setbacks.• Demonstrated advanced expertise in strict TypeScript, react-query, internationalization (i18n), CI/CD practices, and GitHub code reviews, contributing to high-quality code and efficient development processes.

• Advised teams on infrastructure best practices, designing effective software development workflows and serving as a key escalation point for complex architectural decisions to enhance overall project success.• Translated functional project requirements into technical processes and procedures, leading to the successful development and implementation of architecture plans that align with business objectives.• Assisted DevOps teams with data backup solutions (SQL, MongoDB), set up microservices using Spring, Java, Node, and npm, and maintained container-based infrastructures with Docker, effectively managing multi-tiered systems.• Interfaced with formal software version control systems (Git, GitLab) and integration/deployment tools (Docker, Jenkins), optimizing build management processes to streamline development workflows.• Utilized task tracking systems (JIRA, Aha!) for progress documentation and sprint planning, while leveraging wiki systems (Atlassian Confluence) to maintain comprehensive knowledge base documentation.• Performed thorough code reviews to uphold high coding standards, diagnose and resolve technical issues, and develop and execute complete test plans to ensure system behavior and functionality meet requirements.• Demonstrated advanced experience with UI and front-end tools, including AngularJS, Angular 5+, Express.js, Node.js, and NestJS, contributing to high-quality user interfaces and applications.• Possessed advanced knowledge of front-end techniques and tools, including Sass, BEM standards, Bootstrap, CSS Flexbox, and media queries, ensuring responsive and visually appealing web applications.

• In-depth experience leading start-ups and engineering web-related products and services.• Responsible for all aspects of overall technology vision, commercial software product development, and customer delivery while ensuring reliability and effectiveness of development projects.• Develop test plans, package stable code releases and stage QA environments. • Implement integration with commercial, third-party and customer API's.• Build and/or re-engineer custom web applications with responsive design for desktop and mobile.• Design high quality visuals (both print and web) to support a wide range of marketing initiatives across multiple channels, email campaigns and advertising, including but not limited to logos, business cards, post cards, flyers, email campaigns, advertisements and splash pages.• Server administration, migration, upgrade and repair.

• Managed multiple phases of a medium-sized waterfall project, effectively scoping epics and user stories in JIRA, and maintaining comprehensive supporting documentation in Atlassian Confluence.• Collaborated closely with the design team to meticulously translate final compositions into fully functional AngularJS components, demonstrating a high attention to detail with SVG elements, transitions, and data visualizations.• Engineered a bidding application from the ground up using AngularJS 1.5, Express.js, jQuery, Bootstrap, and Sass, delivering a robust solution tailored to user needs.• Directed an assisting developer in architecting a RESTful backend, implementing JSON PATCH and adhering to best practices for optimal performance and maintainability.• Initiated end-to-end testing processes using Protractor and Selenium, and collaborated with the QA Engineer to develop comprehensive test plans to ensure quality and functionality.• Developed Gulp tasks for compiling, browserifying, linting, and running unit tests with Karma-Jasmine, streamlining the build process and enhancing code quality.• Presented hierarchical data using Angular Datatables, incorporating CSS transitions to facilitate dynamic row expansion and collapse for improved user experience.• Built custom directives for enhanced functionality, including search, pagination, button controls, and row selection in Datatables, providing users with intuitive interactions.• Built highly customized dynamic charts (pie, bar, and column) using Highcharts to visualize data effectively, enhancing user engagement and comprehension.• Seamlessly transitioned Highmaps country drill-down to Google Maps street view, enabling interactive data exploration with clusters and custom Google Map popovers for enhanced user insights.

• Gathered and analyzed requirements for a comprehensive data-entry process related to event creation, venue seating maps, and pricing levels by shadowing client services team members and interviewing product managers to ensure accurate and efficient solutions.• Planned, prototyped, and engineered an interactive multi-lingual configuration system using PHP, REST, Dojo, and Bootstrap, supported by Python, Pyramid, Babel, and SQL, significantly reducing user errors, training time, and the execution time of the manual data-entry process.• Led the development of high-profile client portals for managing season tickets, utilizing jQuery, Bootstrap, Python, and REST to create a customizable white-label product that can be themed for various clients, including professional sports teams.• Collaborated with a large agile team to develop a client-facing ticketing system (AXS.com) using Node.js, React, and Sass, implementing features such as a waitlist, interactive seating charts, and seamless payment processing.• Developed meticulously crafted visuals using SVG, custom fonts, and animations, ensuring a cohesive white-label product while providing plugin themes for over 50 client venues, enhancing user experience and branding flexibility.

• Maintained high-traffic subscription-based web application, including but not limited to server administration, third-party upgrades, database management and server migrations• Developed various custom REST API’s using PHP and MySQL to communicate with Android and Apple mobile applications• Managed and acted as technical lead of offshore mobile application development teams, maximizing communication with product manager and streamlining productivity• Created software test plans to uncover, identify and document bugs amongst variable mobile applications• Supported various mobile applications by developing web portals and submitting for approval to Google Play, App Store, Amazon Apps & Games

• Compiled weekly stable releases for a handful of high-profile clients using SVN, deployed to staging and production servers• Collaborated effectively between product managers, QA team and developers to coordinate feature releases and ensure client satisfaction• Staged releases to QA servers for clients to preview and test features prior to deployment• Initiated and performed code reviews of moderately sized development team to ensure strict coding standards were met• Monitored, maintained and repaired high-traffic MySQL clusters• Provide assistance to QA and dev-ops by means of bash scripts and Jenkins jobs

• Converted design comps into standards-compliant websites, prototypes and templates while maintaining cross-browser compatibility (including IE6 support) and pushing the limits of CSS2 technology• Developed custom web applications (front and back end) for e-commerce and online portals using PHP, Smarty Templating Engine and MySQL• Re-designed existing websites by incorporating programming standards (XHTML, CSS, Section 508), utilizing div layers instead of tables and white-hat SEO optimization techniques to increase SERP rankings• Collaborated with clients to determine marketing goals and develop strategies for a stronger web presence

• Created an interactive automated script that extracts image and content from PDF files using Windows Script Host, ImageMagick and XPDF; increasing productivity from 3 hours to 30 seconds!• Developed a creation script that automatically sets up a subdomain, uploads images and stages a portal for digital magazine clients using PHP, MySQL and bash• Implemented a technique for tracking views, clicks, and search engine for flash-based digital magazines using PHP and MySQL• Developed a portal modeled after Urchin (now known as Google Analytics) for clients to view statistics of their digital magazine viewers (GeoIP, views, clicks) and modify ad links- using PHP, CSS, Javascript, Smarty and MySQL• Upgrade and maintain various client websites using Mambo and Joomla

• Engineered a custom CRM front- and back-end that allows the team to easily publish changes to the main website without any technical knowledge, using PHP, MySQL and Smarty Templating Engine• Built email campaigns with quality assurance of all outbound campaigns using InContact, HTML and CSS• Performed day-to-day email marketing activities including but not limited to, email campaign set-up, scheduling, testing, deployment of campaigns and analytics• Designed high quality visuals (both print and web) to support a wide range of marketing initiatives across multiple channels, email campaigns, advertising and presentations using Adobe Creative Suite• Maintained website content, plugins and skin using Mambo

• Hand-built and installed SuSe Linux for a master server, then setup a server cluster for administrators and warehouse employees to perform day-to-day responsibilities via server computers• Design and develop splash pages for company portals using PHP, HTML and CSS• Design ads, labels and marketing materials using Flash and Adobe Creative Suite