Lucas – Python, React, Django

A U.S.-based health insurance platform that uses technology and user-centered design to make medical coverage more accessible and easy to navigate. The platform provides a range of plans for individuals, families, small businesses, and Medicare beneficiaries, offering features such as virtual urgent care, digital access to plan details, and a provider portal that allows clinicians to manage claims and member information efficiently.

• Designed and implemented scalable drug authorization workflows using Python, ensuring HIPAA compliance and high system reliability;
• Led the technical migration of authorization services from a legacy vendor to a new provider, reducing operational risk;
• Built a secure internal tool, end‑to‑end, for searching and viewing PDF member medical charts, improving accessibility for all internal teams;
• Reduced costs by enabling internal teams to perform in‑house chart retrieval and abstraction, lowering vendor dependency (~$800K annual savings opportunity);
• Led the end-to-end development of a Python + React/React Native feature that delivered real-time drug authorization visibility to members via web and mobile apps;
• Collaborated with PMs and cross‑functional stakeholders to integrate and optimize existing healthcare systems and APIs, driving compliance and enhancing operational efficiency.

A U.S.-based company specializing in custom, branded gift programs for corporations, events, and employee incentives. They create personalized treats such as baked goods, chocolates, and cookies, packaged in custom containers with branded materials. The project included developing a comprehensive ERP system to streamline and centralize internal operations, covering customer relationship management, order processing, and fulfillment, improving efficiency across the business.

• Architected and developed a comprehensive ERP system frontend from scratch using React, delivering core modules including customer management, order processing, inventory tracking, and fulfillment workflows;
• Established CI/CD pipelines with Gitlab CI/CD to deploy React application across multiple environments (development, staging, production) using AWS S3 for static hosting and CloudFront for global content delivery;
• Implemented advanced data table components with dynamic filtering, sorting, pagination controls, and search functionality to efficiently manage and display large datasets across multiple business entities;
• Established consistent UI/UX patterns across the application using modern component architecture and state management best practices.

A U.S.-based pet retailer and services company providing supplies, grooming, veterinary care, and other pet-related solutions. The project focused on Vet Online Booking (VOB), a feature that allows pet owners to schedule veterinary appointments online. It simplifies access to clinics by displaying available time slots, connecting users with veterinarians, and managing bookings digitally, offering a more convenient and transparent experience.

• Designed and developed large‑scale web applications using Python, Django, React, and AWS, serving hundreds of thousands of daily requests;
• Built and maintained RESTful APIs with Django Rest Framework, ensuring reliability and scalability under high traffic;
• Designed and implemented a GitLab-based CI/CD pipeline integrating automated testing, containerization, and deployment workflows for multiple environments;
• Improved a Django + React personalized scheduling tool, guiding users based on their needs and boosting engagement, conversions, and revenue by 30%;
• Implemented observability with New Relic and Sentry, enabling us to reduce API errors by 90% and improve monitoring across critical systems;
• Created responsive, component‑based user interfaces with React, Typescript, and Tailwind, significantly improving user experience.
• Mentored junior engineers, accelerating their growth in technical and domain expertise.

An HR technology company focused on digital workforce management solutions, primarily providing tools to manage employee attendance and work hours. The project included developing a Time Tracking system that allows employees to clock in and out via app, web, or QR code, replacing manual or physical timekeeping. The platform enables HR teams and managers to monitor attendance, calculate overtime, and ensure compliance with labor regulations.

• Developed and maintained a cloud‑based employee time and attendance platform using Python, Flask, Vue.js, and PostgreSQL;
• Built asynchronous services with Celery and Rabbit MQ to import large datasets, cutting integration time by 90% and reducing bug reports;
• Strengthened code quality with unit and integration testing, lowering production issues;
• Collaborated with internal and external technical leaders to deliver innovative solutions aligned with business needs.