Levente-László Bagi
Ruby
Rails
JavaScript
TypeScript
React
Next.js
Recent Projects
Mietvertrag
2025 – present
Ruby on Rails 7, MariaDB
Upgraded the existing Ruby on Rails app from Rails 4 to 7 and deployed it to a new server. Providing ongoing support and implementing small improvements and features as needed.
Fatype
2024 – present
Ruby on Rails 7, JavaScript, PostgreSQL
Built a typeface-tester interface, implemented a new website design and various features and improvements related to content-management, pricing and the checkout process.
Donup
2024 – 2026
Ruby on Rails 8, Stimulus, JavaScript, PostgreSQL, Phlex
Built a new Ruby on Rails app that distributes a donor's payment across the charities and projects they have selected (Stripe).
Seedlang
2023 – 2025
Ruby on Rails, JavaScript, React
Implemented various features primarily focussed on payments and subscription management (Stripe, Discord, Patreon).
ScripTea
2021 – 2024
Next.js, TypeScript, React, MobX, Material-UI, PouchDB, PWA
An interactive podcast player for language learners, featuring automated transcription and translation, as well as looking up individual words in a built-in dictionary.
DieProduktMacher
2022
Ruby on Rails, JavaScript, Stimulus, REST, SOAP
Contributed to building a healthcare reporting app.
Klara (now ModMed)
2019 – 2021
Ruby on Rails, PostgreSQL, Sidekiq, REST API
HIPAA-compliant healthcare messaging application. Integration with external health record management systems and phone systems. Contributed to architecture planning and design discussions.
Syft (now Indeed Flex)
2016 – 2018
Ruby on Rails, PostgreSQL, Elixir, REST API
Led the rewrite of the backend into a performant, maintainable, modular application; interviewed and mentored new developers; handled the technical due diligence process required for securing investment.
Square Enix
2012 – 2015
Ruby on Rails, Sinatra, Rack, Grape, REST API design, Devise, OAuth
Built features and maintained a single-sign-on service for several websites and games. Integrated with numerous systems, satisfying their unique requirements. Transformed the codebase into a maintainable, secure and scalable application.