
Lucas Leite
Verified Expert in Engineering
Full-stack Developer
Lucas is a control and automation engineer who's spent the past several years building web apps for a range of industries, including robotics, health, and education. As an avid programmer, he's mastered development in Python and JavaScript, primarily using frameworks such as Flask, Express.js (Node.js), and React. Having owned a startup with hundreds of thousands of users, Lucas fully comprehends the commitment it takes to build a product from scratch and delivers software with that in mind.
Portfolio
Experience
Availability
Preferred Environment
Amazon Web Services (AWS), SQLAlchemy, Sequelize, Next.js, Node.js, React, Docker, Django, Flask, Python, TypeORM, GitHub, NestJS, Amazon DynamoDB
The most amazing...
...thing I've ever done was founding and developing a successful SaaS business with over 100,000 monthly users.
Work Experience
Senior Full-stack Developer
PepsiCo
- Developed business solutions for one of the most iconic American brands.
- Developed both the back end and front end, delivering SOLID code with sustainable code coverage.
- Fixed bugs and improved the workflow and pipeline to catch errors better.
Senior Full-stack Developer
Toptal Client: Edtech Startup
- Implemented features in a Python/Django API. Added models, fixed security issues, added new endpoints, while also increasing code coverage.
- Developed responsive user experiences in the front end using React and Redux.
- Increased code-quality using TypeScript, better tests, and improved code standards by refactoring components using SOLID principles.
- Developed a new service implementing a REST API using Node.js, models in Sequelize, and Lambda functions in AWS using the Serverless Framework.
Senior Full-stack Software Engineer
Chegg
- Worked for a major publicly traded American edtech company, building e-learning tools to help people learn to code.
- Created high-quality React components using TypeScript and Redux with full test coverage using Enzyme, end-to-end testing, and React Testing Library.
- Developed many features for numerous apps using Python in the back end and React in the front end, including extensive test coverage in both SOLID principles.
- Built back-end integrations in Python to Salesforce using WebHooks and Syncers.
- Migrated API integrations from the Google Suite platform to O365 using Microsoft Graph in Azure.
- Implemented live-chat experiences for students, integrating with several APIs using Python and React.
- Implemented A/B testing using Optimizely and React SDK.
Senior Full-stack Software Engineer
Soccer Fantasy Game
- Developed the full stack of a mobile app for a Serie A Brazilian soccer team using several languages and frameworks: Python, JavaScript, Node.js, Express, Flask, and Django.
- Created a ready-to-scale microservice in GCP and developed numerous REST APIs written in Python and Node.js.
- Implemented a monitoring and logging stack with Metabase and Sentry, including comprehensive dashboards with the main KPIs as well as usage alerts.
Senior Full-stack Software Engineer
Menu Mais
- Developed a digital restaurant platform featuring a digital menu with translations in over 100 languages, takeout, and dine-in ordering.
- Implemented challenging features with a high level of customizability, including user and user-less ordering system, integration with several third-party providers, kitchen monitoring systems, and several menu variances.
- Created a fully responsive progressive mobile app featuring auto-translation, payments, and SMS integrations.
- Implemented a robust restaurant monitoring dashboard for the managers and owners.
Senior Full-stack Software Engineer
Ouvimos Você
- Expanded the product's full stack from zero to thousands of daily users, solving a growing business's significant problems: Scalability and constant business model changes. Used Python for the back end and JavasScript for the front end.
- Modeled the database using the popular ORM SQLAlchemy, writing all class models, and mapping the relationships. Deployed to GCP using Cloud SQL and PostgreSQL.
- Developed the front end using server-side rendering for some pages and JavaScript for portions of the software that required single-page application (SPA) experiences.
- Constructed a distributed microservice infrastructure using Docker, Docker-compose, and NGINX proxying. Hosted it in the Google Cloud Platform (GCP) as well as in AWS.
- Implemented the company engineering culture bringing in the Agile methodology, scrum, code reviews, and paired development sessions.
- Integrated several platforms to the SaaS solution: Heap, Sentry.io, dashboards in Metabase, RD Station (marketing automation), and HubSpot Sales.
Senior Full-stack Software Engineer
Labfy
- Developed the whole back end using Python/Flask and server-side rendering using Jinja.
- Implemented a feature-management system with Python/Flask Principal for five different user types.
- Integrated Microsoft Active Directory servers with clients using LDAP to obey the client's company compliance.
- Fully developed single-page application front-end experiences using JavaScript.
- Deployed in Google Cloud Platform (GCP) using Docker and NGINX proxying.
Founder
Faz Labs
- Founded Faz Labs, a hardware and software company. Shipped software products for hundreds of business clients.
- Engineered a drone-accessory to combat endemic diseases—Yellow Fever, Malaria, and chikungunya—spreading in partnership with the Brazilian health-public sector. The device released pesticides to destroy mosquitoes' nests.
- Engineered embedded hardware using electronics and microcontrollers' expertise aided by Eagle CAD and engineering enclosures and mechanisms using SolidWorks and 3D printing.
- Developed a park-cleaning robot, writing low-level code in C and a higher abstraction layer in Python. Winner of the international "Laureate Award for Excellence in Robotics Engineering."
Experience
Ouvimos Você (We Hear You)
http://www.ouvimosvoce.com.brMenu Mais
Thinkful
https://www.thinkful.comSkills
Languages
TypeScript, JavaScript, Python 3, Python, CSS, SQL, HTML, CSS3, C, GraphQL, Snowflake
Frameworks
Django, Next.js, Express.js, Flask, NestJS, Tailwind CSS, YARN, Redux
Libraries/APIs
React, Node.js, SQLAlchemy, REST APIs, Vue, Salesforce API, RefluxJS, Stripe
Tools
WebStorm, Postman, GitHub, Prisma, Mocha, Sequelize, Webpack, Terraform, PyCharm, Sketch, Slack, Sentry, Docker Compose, Mongoose, Jenkins
Paradigms
DevOps, Microservices, B2B, Data Science
Platforms
Docker, Google Cloud Platform (GCP), Amazon Web Services (AWS), AWS Lambda, Amazon EC2, Kubernetes, Azure, MacOS, Heroku
Storage
MySQL, PostgreSQL, MongoDB, Redis, NoSQL, Amazon DynamoDB, Elasticsearch, Google Cloud
Other
APIs, SaaS, Amazon RDS, API Integration, Back-end, FastAPI, Front-end, Full-stack, Market Research, Big Data, Architecture, CTO, WebSockets, MERN Stack, TypeORM, CI/CD Pipelines, Technical Leadership, Software Architecture, Algorithms, Team Leadership, Vercel, Trading, Enterprise SaaS, Metabase, Heap, Rapid7 Solutions, Serverless, Robotics, Business Development, English, Software, Engineering, Artificial Intelligence (AI), Supabase
Education
English Program in An Intensive Language Program (English)
Valencia College - Orlando, FL, USA
Bachelor's Degree in Control and Automation Engineering
Salvador University - Salvador, Brazil
Certifications
Modern React with Redux and Hooks
Udemy
Excellence in Robotics Engineering (1st, World)
Laureate Education, Inc.
James McGuire Business Plan Competition Award
Laureate Education, Inc.
Excellence in Robotics Engineering (2nd, World)
Laureate Education, Inc.