Athus – Python, React, AWS

An online marketplace platform similar to a service-based learning ecosystem, connecting students with professionals across various domains. The platform enabled users to discover experts, book sessions, and learn new skills, while allowing professionals to monetize their expertise. It functioned as an e-commerce solution, showcasing profiles, skills, and reviews, and supporting both one-time purchases and subscription models.

Additionally, contributed to mobile applications for both learners and professionals, supporting communication, subscription, and profile management, as well as integrating AI-driven features to enhance user experience and interaction on the platform.

• Migrated over 40 Client Side Rendered pages to Server Side Rendered Page using Next.js and ShadCN;
• Refactored 4 of the most important pages in the website: Landing page, browse page, pro profile page, and checkout page;
• Built advanced chat features for the React Native app: manual replies, templated replies, AI-based replies, message reactions, along with iMessage-like animations;
• Increased the unit test coverage in the Node.js application from 14 unit tests to over 300 unit tests, reducing the number of production bugs;
• Worked closely with the sales and cx teams to automate their work using Customer.io and GHL by creating automated workflows with or without AI;
• Won the first internal hackathon by innovating with amazing and useful features for both the pro and student app that produced a higher customer retention and removed intermediary solutions when using the app.

A US large-scale digital health platform focused on improving access to mental healthcare by connecting patients with therapists, prescribers, and care teams through an integrated virtual solution. The platform combined telemedicine, insurance workflows, and medication management to enable continuous, data-driven care.

Worked on building scalable systems to support high user demand, ensuring reliability, accessibility, and a seamless user experience while helping make mental health services more consistent and widely available.

• Built and scaled cross-platform applications using React and React Native, ensuring a consistent and high-quality user experience;
• Refactored the current landing page by using Next.js;
• Developed robust backend services with Node.js (Nest.js) and PostgreSQL to support critical clinical workflows;
• Led the development of a Task Manager system that replaced Zendesk, improving operational efficiency and reducing costs;
• Delivered key EMR features that helped clinicians manage patients, appointments, and daily workflows more effectively;
• Implemented productivity tools like audit logs, tagging, task tracking, and real-time notifications to enhance clinician performance;
• Took ownership of complex, unfamiliar domains and consistently delivered high-quality solutions in fast-paced environments.

A Business Savings Network and e-commerce platform that enables fleets, small and medium-sized businesses to access pre-negotiated discounts on fuel, maintenance, and operational services, while seamlessly managing payments through its infrastructure.

• Led a cross-functional team of 5 engineers to deliver a greenfield e-commerce platform from 0 → production, generating millions in revenue within months and accelerating WEX EDGE’s market expansion;
• Architected and scaled a modern frontend ecosystem (Angular + React + React Native), establishing reusable patterns and improving long-term maintainability and development speed;
• Designed and implemented high-performance microservices using Java, Go, and Python, enabling a scalable backend that supported rapid product growth;
• Replaced fragmented workflows with a unified commerce experience, improving operational efficiency and enabling SMB customers to access services more seamlessly;
• Partnered closely with product and executive stakeholders to translate business goals into technical strategy, ensuring consistent delivery of high-impact features;
• Played a key role in team growth by interviewing and hiring engineers, contributing to building a high-performing and scalable engineering team;
• Drove engineering culture through knowledge sharing and internal talks, improving team alignment, onboarding speed, and technical consistency;

Is a global fintech company powering secure, scalable payment solutions for businesses across fleet, travel, and corporate expenses. Its products help organizations control spend, automate workflows, and gain real-time financial insights, supporting millions of transactions worldwide.

• Led a team of 4 engineers in an innovation-focused environment, delivering high-quality prototypes in 1-week cycles, significantly accelerating product validation and reducing time-to-decision for new initiatives;
• Built and shipped RESTful APIs using Python (Flask) that powered an in-car multimedia experience in partnership with Jaguar, enabling seamless integration with WEX’s payment infrastructure;
• Contributed to a React-based in-car application that allowed users to locate gas stations, fuel, and complete payments directly from their vehicle, pushing forward embedded commerce capabilities;
• Developed multiple zero-to-one prototypes (API management and card tokenization platforms) using Python, Node.js, MongoDB, PostgreSQL, and Angular, helping validate new product directions and technical feasibility;
• Enabled real-time, in-vehicle payment flows using WEX cards, improving user convenience and expanding WEX’s presence in emerging mobility ecosystems;
• Mentored engineers and promoted best practices in a fast-paced, experimental environment, improving team velocity and code quality under tight iteration cycles;