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Leonardo P.

Curitiba, Brazil

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About Me

Leonardo is an accomplished senior software engineer with an extensive background spanning over six years. His expertise lies in the realm of Node.js and JavaScript back-end development, complemented by proficiencies in front-end development and DevOps practices. Leonardo boasts a remarkable portfolio, having successfully constructed enterprise-grade applications and design systems for prominent entities such as Philips, Napster, the Brazilian Sabemi Insurance Company, and Granero. Committed to professional growth, he possesses an unwavering passion for assimilating novel business models, mastering cutting-edge technologies, and driving digital transformations. Notably, Leonardo's profound industry acumen is underscored by the attainment of a bachelor's degree in computer science.

AI, ML & LLM

YAML UML Amazon Elastic Container Service (Amazon ECS) Amazon Elastic Container Registry (ECR) AWS CloudTrail High Availability Disaster Recovery (HADR)

Frontend

JavaScript CSS HTML SCSS Angular Next.js Bootstrap Tailwind CSS React React Hook Forms

Backend

PHP Express.js Node.js REST APIs OpenAPI Google Maps API APIs Amazon API Gateway

Database

SQL Amazon DynamoDB MongoDB MySQL Databases

DevOps

Terraform AWS Fargate AWS ELB Amazon CloudFront CDN Amazon Virtual Private Cloud (VPC) Amazon EBS AWS Glue Amazon CloudWatch DevOps Docker Kubernetes Amazon Web Services (AWS) AWS Lambda Google Cloud Platform (GCP) AWS ALB AWS Elastic Beanstalk Amazon S3 (AWS S3) Google Cloud AWS DevOps CI/CD Pipelines AWS Certificate Manager AWS Auto Scaling AWS Snow Family Google Cloud Build

QA & Testing

Jest Test-driven development (TDD) Automated Testing Unit Testing E2E Testing

Workflow

Git Github GitHub Actions

Other

Typescript SASS LESS Graphql JSON Web Tokens (JWT) Redux NestJS Swagger OAuth 2 RXJS Google Maps Artifactory Coveralls Amazon Athena Amazon ElastiCache Amazon Simple Queue Service (SQS) Amazon Simple Notification Service (Amazon SNS) Amazon Cognito Amazon OpenSearch DRY KISS Modular Design Responsive Web Design (RWD) Serverless Architecture YAGNI Microservices MacOS Heroku Amazon EC2 JSON Redis Amazon Aurora Amazon EFS Architecture Web Development Google Pub/Sub Documentation Back-end Full-stack Data Structures Serverless WebSockets Design Systems DesignOps Conventional Commits Semantic Versioning Framer Prototyping Caching Dashboards Google SEO date-fns Content Delivery Networks (CDN) Data Visualization SaaS Software as a Service (SaaS) Amazon Kinesis Monitoring Observation Leadership Computer Architecture Artificial Intelligence Graph Theory Social Networks Infrastructure as Code (IaC) Reakit Google Tag Manager reCAPTCHA Downshift Code Coverage Enterprise Resource Planning (ERP) Amazon Glacier Identity & Access Management (IAM) Disaster Recovery Plans (DRP) Well-Architected Framework Load Balancers Amazon RDS Amazon Route 53 CORS Amazon FSx Amazon MQ Amazon EventBridge Analytics

Work history

UpStack

Fullstack JavaScript Developer

2022 - Present (3 years)

Remote

Creating and developing innovative software solutions for clients across a broad range of industries.
Participate in scrums consisting of cross-functional teams, both software and hardware.
Ensure that features are being delivered efficiently and on-time.

JavaScript React.js Node.js HTML CSS Responsive Web Design Web Development Test-driven development (TDD)

Freelance

Senior Software Engineer

2021 - Present (4 years)

Remote

Engineered new architectural improvements on the GCP, developed and tested APIs and enhanced API performance by 70%.
Designed and deployed new features on the backend API and worked on the GCP Pub/Sub integration for streaming events.
Followed modular dev practices for pull requests and peer reviews to enhance code quality using modern design principles.

Node.js Nest.js Test-driven development (TDD)Jest Docker GCP Terraform Microservices Continuous Integration (CI)Continuous Delivery (CD)Github Serverless Typescript

Granero Transportes

Frontend Engineer

2020 - 2021 (1 year)

Brazil

Worked on a new, improved and responsive portal for Granero - increasing leads to 70k+.
Designed and implemented several features to enhance the back-office portal and streamline authentication management.
Deployed enhancements on the solution - fixing layout bugs, improving code quality and maintaining design patterns.

Angular React.js Next.js SCSS RXJS Typescript Google Map API Google Maps React Hooks Google Tag Manager (GTM)Responsive Web Design JWT

Hero99

Senior Software Engineer

2020 - 2021 (1 year)

Brazil

Designed and implemented an insurance management portal for Sabemi Insurance with 340k users across 21 Brazilian states.
Built an agnostic design system that helps to distribute design tokens in multiple formats simultaneously across projects.
Managed digital transformation across 30+ Philips repositories by standardizing GitHub CI/CD pipelines and best practices.

PlugApps

Fullstack Engineer

2019 - 2019

Curitiba, Brazil

Developed and maintained PlugApps' proprietary microservices architecture - delivering 170+ tests on APIS.
Enhanced the microservice architecture by removing performance bottlenecks and increasing API fetching performance by 75%.
Built and deployed a social network management dashboard with features to track users, posts and reports.

React.js Atomic Design I18n Laravel Framework PHP Redis Gitlab Github Terraform AWS CSS Microservices Amazon Aurora MySQL Responsive Web Design Data Visualization HTML JavaScript Docker

MULTILIG Tecnologia

Fullstack Engineer

2018 - 2018

Curitiba, Brazil

Designed and implemented a new automated geolocation feature that helps to track optical fibre installations across 2k towns.
Maintained high code quality, optimized the performance of dashboard report queries and deployed solutions to resolve bottlenecks.
Participated in regular solution design sessions to improve interfaces and integrate components and 3rd-party APIs.

Node.js Socket.io PHP Laravel Framework Docker Express CSS MySQL DRY KISS SaaS HTML JavaScript Bootstrap

Showcase

Clean Architecture TypeScript API

Developed a Node.js-based API using Clean Architecture, improving the construction of enterprise-grade projects
Integrated technologies such as Jest, MongoDB, JWT, and GraphQL, adhering to OpenAPI standards with Swagger documentation
Maintained quality by implementing Travis CI pipelines, using Coveralls for code coverage analysis and deploying solution on Heroku

Sabemi Consumers Portal

Sabemi Consumers Portal was designed and developed for the Brazillian Sabemi Insurance Company.
The project involved using TypeScript, Angular, RxJS, Conventional Commits, JWT, and implementing responsive design with a modular architecture.
The portal is a sophisticated insurance management system successfully delivered as per commissioned requirements.

Napster App

Played a key role in migrating legacy services to Google Cloud Platform.
Managed successful migration of services handling over 3 billion monthly accesses.
Employed technologies like Node.js, Nest.js, TypeScript, GCP, Cloud Run, observability, custom metrics, alerts and various other tools for the migration.

Spaceship Tracking Website

Vehicle tracking page crafted using Tailwind CSS, Next.js 13, RWD and Lazy loading.
Platform is predominantly used in Brazil.
Project demonstrates flawless page speed scores.

Granero Consumers Portal

The developer was hired by Granero, Brazil's largest moving company, to create a mobile-responsive consumer portal due to increasing mobile phone usage among the customers.
The new portal, which was developed using technologies including Next.js, TypeScript, and Google Tag Manager, resulted in over 70,000 leads per month and introduced new pages for careers and international shipping.
The revamped portal drastically improved performance, SEO, best practices, and accessibility scores from below 40 in the previous website, facilitating growth and expansion for Granero.