Federico Dayan

Led the end-to-end development of an innovative onboarding application tailored to gather user specifications for new cooling or heating equipment installations in residential settings.
Designed and developed a streamlined process for order configuration, installation progress tracking, and payment management.
Spearheaded the architecture and development of an intuitive admin interface, empowering efficient order configuration and comprehensive order tracking capabilities

As a Senior Software Engineer on the Web Infrastructure team at Taskrabbit, I collaborated closely with a pod of six engineers to develop and maintain robust web applications. My primary focus was on building and enhancing the front-end components using React within the Next.js framework. Additionally, I took ownership of various testing responsibilities, including the development of Jest tests for React components and Playwright End-to-End (E2E) tests. Some of the modules I worked with at TaskRabbit are: Payments, Booking, Profile.

Key Responsibilities:

Front-end Development: Designed and implemented responsive and interactive front-end components using React, ensuring high-quality user experiences and seamless integration with Next.js.

Testing and Quality Assurance: Developed comprehensive Jest test suites to ensure the stability and reliability of React components. Additionally, I leveraged Playwright to design and implement E2E tests, covering critical user workflows and scenarios.

API Development: Utilizing Ruby on Rails, I played an active role in designing and developing RESTful API endpoints to facilitate seamless communication between the front-end and back-end systems. This included implementing efficient data retrieval and manipulation mechanisms.

Migration to React: Led the migration process of existing JavaScript components to React, leveraging modern patterns and best practices. This involved refactoring code, optimizing performance, and ensuring backward compatibility.

In my role at TrackerBuddy, I architected a comprehensive Ruby on Rails and React application tailored for daily tracking of various mental health metrics, including moods, anxiety levels, sleep patterns, and more. I innovatively introduced a feature allowing users to design personalized trackers and ensured a dynamic user interface that displayed data using calendars, line charts, and bar graphs. My expertise in Redux played a pivotal role in managing application state, where I developed action creators and reducers. Leading the team, I adopted agile methodologies, emphasizing daily stand-ups, comprehensive user stories, and systematic iteration planning. My commitment to robust code was reflected in my use of Test-Driven Development with RSpec. I further strengthened the application's functionality by designing an API for React component integration and introduced token-based authentication for enhanced security. A highlight was the adept use of Sidekiq for background jobs, especially for data mining processes.