Allan R.
Senior Full Stack
Experience
Jan 2022 - Present
4 yearsBrazil
Senior Full Stack
Roberto & Roberto Ltda
- Travel industry: using event source approach to get data from different providers, compile the data and deliver to APIs
- Marketplace: extract data products based on BigQuery database to create installments considering the profit margin and inventory
- Insurance: create applications to help manage and generate sales
- Create and maintain pipelines to extract data with Python, Pandas
- Create and maintain pipelines to vectorize data for AI models like gemmini and OpenAPI as knowledge base
- Create and maintain automations with Google Cloud and N8N
- Create and maintain microservices with Kotlin, Spring Boot, Kafka, MongoDB
- Create and maintain microservices with Java, Spring Boot, RabbitMQ, Redis, MySQL
- Create and maintain microservices with Java, Spring Boot, Pub/Sub, Postgres
- Create and maintain microservices with Java, Spring Boot, BigQuery, MongoDB
- Create and maintain dashboard with Angular 13 and AdminLTE
- Create and maintain tests with JUnit
Nov 2020 - Dec 2021
1 year 2 monthsBerlin, Germany
Senior Web Engineer
MYTOYS Group
- Create and manage micro services to integrate S3 Bucket, Elastic Cache and cache in memory to provide right performance and scalability for the frontend application
- Create and maintain micro services with Java/Kotlin/Spring Boot with DynamoDB
- Create and maintain micro services with PHP/Symfony with Elastic Cache and in-memory cache (APCU)
- Create and maintain microservices with Node/Express to integrate JSON from S3 bucket and Elasticache
- Create and maintain unit and integration tests with Jest, PHPUnit and JUnit for different applications
- Create docker images for ECS on AWS
Oct 2017 - Oct 2020
3 years 1 monthDüsseldorf, Germany
Java Developer
Weekengo GmbH
- Create micro services to consume different data providers to filter better offers from flights and trains to create attractive packages considering qualitative information from hotels using Java/Spring Boot
- Create React components with React/Redux
- Create and maintain API with PHP/Symfony, Node/Express
- Create and maintain microservices with Java/Spring Boot
- Create and maintain tests with PHPUnit and JUnit
- Create and maintain CMS with Sonata
- Work with architecture as code on AWS with Terraform using EC2, DynamoDB, ElasticCache Redis, ECS, ElasticBeanstalk, CloudWatch, RDS MySQL and Postgres
Sep 2016 - Oct 2017
1 year 2 monthsPalmas, Brazil
Full Stack Developer
Sied Sistemas
- Create mobile application and API to integrate reports from desktop application that manage delivery and restaurant business logic
- APIs to get information from restaurant systems and generate reports for mobile application with Spring MVC, JPA, Hibernate, MySQL and Redis
- Create and maintain mobile application with JavaScript/Angular/Ionic
- Create and maintain CMS portal with Laravel
- Create and maintain website with PHP/Laravel/JavaScript
Jun 2014 - Dec 2016
2 years 7 monthsPalmas, Brazil
Senior PHP Developer
BetaGT Desenvolvimento de Software
- Restaurant API with Java 8, Spring Framework, Hibernate, JUnit, MySQL and Redis
- Delivery API developed with PHP 7, Laravel, Eloquent, Blade, MySQL, Pusher, Redis
- CMS with Sonata, Bootstrap Twitter, AngularJS
- Create unit and integration tests with JUnit and PHPUnit
May 2013 - Jul 2015
2 years 3 monthsPalmas, Brazil
PHP Developer
International Bible Institute
- E-learning backend Symfony, Doctrine, Twig, JavaScript, jQuery (Ajax), Bootstrap Twitter
- Simple page application with JavaScript, jQuery (Ajax), Bootstrap Twitter
- Deploy app in EC2 Amazon and Azure Virtual Machine environment
Nov 2011 - May 2013
1 year 7 monthsPalmas, Brazil
PHP Developer
Artemsite Digital Agency
- Convert PSD files to HTML, CSS and Smarty Framework (frontend)
- Configure native PHP (backend) to deliver small content portals and e-commerce
Summary
Senior Software Engineer with 12+ years of experience designing, building and scaling distributed systems, high-performance APIs, data pipelines and cloud-native applications.
Strong expertise in Java/Kotlin, Python, event-driven architectures, AI data engineering, and AWS/GCP.
Proven track record improving scalability, reducing operational cost, and enabling business growth in travel, marketplace, insurance and e-commerce industries.
Languages
Portuguese
NativeEnglish
AdvancedGerman
ElementaryEducation
Faculdade Anhanguera
Data Engineer
Universidade Norte do Paraná
Analysis and System Development · Brazil
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