
Thiago Henrique Coraini
Verified Expert in Engineering
Software Developer
São Paulo - State of São Paulo, Brazil
Toptal member since February 2, 2021
Thiago is a software engineer with over a decade of industry experience ranging from early-stage startups to global tech companies like Amazon. He excels at building optimization algorithms, highly scalable distributed services, and customer-facing web applications. Thanks to a master’s degree in computer science, robust analytical skills, and an eye for detail, Thiago consistently delivers exemplary products to his customers.
Portfolio
Experience
- Object-oriented Programming (OOP) - 10 years
- Java - 8 years
- Testing - 5 years
- REST - 4 years
- Distributed Computing - 4 years
- Amazon Simple Queue Service (SQS) - 3 years
- TypeScript - 1 year
- Node.js - 1 year
Availability
Preferred Environment
Java, Node.js, TypeScript, Amazon DynamoDB, Amazon Simple Queue Service (SQS), Amazon Simple Notification Service (SNS), MySQL, PostgreSQL, REST
The most amazing...
...system I've built was an event-based service that made it easier for vendors to sell their products globally in one of the largest online global retailers.
Work Experience
Software Engineer
Loft Brasil Tecnologia Ltda
- Developed an entire logged-in section in the website focused on property owners who are selling on our platform.
- Implemented the back-end APIs for several widgets in the website, providing our customers with insightful graphs and reports and also management capabilities of their data.
- Participated in the hiring process by interviewing candidates.
Software Development Engineer
Amazon.com
- Designed, developed, and maintained a few services responsible for making Amazon's selection global and helping vendors seamlessly sell their products in different countries.
- Implemented highly scalable message-passing services that could process, at its peak, thousands of messages per second, using AWS services like SQS/SNS and DynamoDB.
- Coordinated team improvement efforts in our engineering excellence practices, like improving our metrics, dashboards, alarms, and our CI/CD pipelines to ensure we were always aware of the health of our systems.
- Participated in the hiring processes by doing phone screens and onsite interviews and also helping design new questions.
- Reviewed architecture designs from other team members, helping them find potential performance bottlenecks, security issues, or otherwise just suggesting possible improvements and alternative approaches to the software being built.
Software Engineer
Playax
- Helped implement and quickly deliver new features to our web application using Ruby on Rails.
- Built integrations with music service providers (e.g., YouTube, Deezer) to show reports to our clients about their plays, earnings, and so on.
- Integrated with governmental agencies systems to identify and collect copyright values on behalf of our clients.
Software Engineer
Neolog
- Helped design and implement changes in our optimization algorithms, like routing optimization (the best route for a group of deliveries) and container loading (the best way to load products in a container).
- Implemented the back-end logic for different parts of the system using the Spring framework, Hibernate to connect to both Oracle and SQL Server databases, and Spring Remote to communicate with the front end.
- Used extensively Java profiling tools to find bottlenecks and improve the performance of optimization algorithms that had strict runtime constraints.
Experience
Distributed Actor Migration in Scala
https://github.com/tcoraini/akka-mobile-actorsThe idea was to make developing distributed applications easier and seamless (with automatic distribution) and more fault-tolerant (with actor migration).
The complete thesis, in Portuguese, can be found at the link below: • https://teses.usp.br/teses/disponiveis/45/45134/tde-18032012-134507/publico/DissertacaoThiagoCoraini.pdf
Container-loading Algorithm for Specific Customized Patterns
I was the proposer (and for some time the main implementer) of several changes in our current algorithms (which were based, mostly on academic research) that would satisfy the customer loading patterns while also attending to all the other system requirements like optimizing the load and meeting hard restrictions (e.g., max stacking weight).
API for Exposing ML-based Real Estate Insights
I was the main person responsible for rolling out the microservice that would deliver that information through RESTful APIs. At the same time, I coordinated with the DS team to make the data handover reliably flow from the models to our web application.
Education
Master's Degree in Computer Science
University of São Paulo - São Paulo, Brazil
Bachelor's Degree in Computer Science
University of São Paulo - São Paulo, Brazil
Skills
Libraries/APIs
Node.js
Tools
Amazon Simple Queue Service (SQS), Amazon Simple Notification Service (SNS), Git, Bitbucket
Languages
Java, SQL, TypeScript, Scala, JavaScript
Paradigms
Object-oriented Programming (OOP), REST, Distributed Computing, Testing, Design Patterns, Functional Programming, Actor Model, Test-driven Development (TDD)
Frameworks
Hibernate, Spring, Ruby on Rails (RoR), NestJS, Akka
Storage
Amazon DynamoDB, MySQL, PostgreSQL
Platforms
Oracle, Kubernetes, Docker, Amazon Web Services (AWS)
Other
Algorithms, Data Structures, Optimization Algorithms, TypeORM, Optimization, APIs
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