Alessandro Agozar

• JWT Authentication – Engineered a credential-less authentication flow using Spring Security and JWT, enabling secure and scalable integration across internal tools and external B2B platforms.
• Designed and implemented a manual lead validation workflow within a legacy Java EE monolith (Java 8, Servlets, JSP), improving lead qualification and enhancing data reliability.
• Redesigned data structures and optimized aggregation logic using Java 17+, PostgreSQL and Spring Data JDBC, resulting in a 300% performance boost for a client-facing backend application used by B2B customers.
• Developed a credit system and dynamic pricing engine for a client-facing Data-as-a-Service platform used by paying B2B customers, leveraging Java 11, Spring Boot and PostgreSQL; integrated Salesforce REST APIs to manage user data and automate intent-based credit package assignment.
• Boosted autocomplete performance on a client-facing B2B platform by integrating a Radix Tree data structure; developed scalable RESTful APIs with Java 11 and Spring Boot and implemented a bookmarking system using PostgreSQL, Hibernate, and Spring Data JDBC.
• Implemented secure passwordless login via magic link authentication with Spring Boot across multiple client-facing B2B products, streamlining cross-platform user access and enhancing security.
• Data Pipelines – Built ETL pipelines in Python (Jupyter, psycopg2, pandas) to extract, clean and load Salesforce CRM data into PostgreSQL, supporting internal analytics and operations.
• Cross-stack Contributions – Collaborated across the stack by contributing to frontend features in React and Next.js (TypeScript), improving SEO, localization (i18n) and integrating systems such as Strapi CMS, Weblate, and Stripe.
• Team Support & Code Quality – Led code reviews and provided architectural guidance in Agile teams, contributing to sprint planning and team retrospectives, while supporting backend developers across multiple projects.

• Delivered customized websites and web applications for clients through freelance projects alongside my full-time job, effectively balancing multiple responsibilities while consistently meeting requirements and deadlines.

• Developed responsive web pages and interactive components using HTML, CSS, JavaScript, and jQuery.

• Designed and implemented interactive web content and CSS animations using HTML, CSS, and JavaScript, delivering engaging and high-performance user interfaces.

Backend: Java, Java EE, Spring Boot, Spring Data JPA, Hibernate, Spring Data JDBC, PostgreSQL

Frontend: HTML, CSS, JavaScript, TypeScript, TailwindCSS, React & Next.js

Other: Git, Sanity CMS, Strapi CMS, Salesforce CRM, QGIS, Talend, Vercel, Agile, Kanban

Languages: Italian, English, Filipino