Kleber Pinel Bernardo da Silva
Verified Expert in Engineering
Software Developer
Vancouver, BC, Canada
Toptal member since April 3, 2013
Kleber has over 17 years of successful programming experience and as an engineer manager. He is most proficient in Go and Ruby on Rails, but he enjoys mastering new technologies to solve a broader range of problems efficiently. He has thrived both as a group leader and in individual settings.
Portfolio
Experience
- Node.js - 7 years
- Ruby on Rails (RoR) - 5 years
- Go - 5 years
- React - 4 years
- JavaScript - 4 years
- Kubernetes - 3 years
- DevOps - 3 years
- Terraform - 2 years
Availability
Preferred Environment
Linux, MacOS, Visual Studio Code (VS Code)
The most amazing...
...project I've done is an asynchronous platform that processes thousands of messages from a Kafka as messaging bus in real-time with an ETL.
Work Experience
Back-end/GoLang Developer
Lion.Lightning.Unicorn Inc. d/b/a MinervaAI
- Created a structured API projected using Go for identification verification using Facetec technology.
- Added testing cases using GoMock, setting the standards to be followed by other developers.
- Implemented the documentation process utilizing Swagger.
Staff Engineer and Technical Engineering Manager
Splash
- Joined a team handling integrations and proposed new approaches and solutions.
- Started microservices in Go to integrate with Salesforce.
- Managed an in-house team of seven engineers and a QA.
- Defined goals, KPIs, and team metrics. Oversaw the planning and execution of the email sender process architecture.
- Implemented code in Node.js, TypeScript, Go, and Ruby on Rails.
- Managed outages and built remediation plans for action after service reestablishment.
Senior Developer
Scalabull
- Established a plan and execution of upgrading NestJS projects.
- Refactored the code to use ESM for a more modern approach.
- Migrated Node.js applications from version 12 to 16 of transport layer security (TLS).
Engineering Lead
Lone Wolf Technologies
- Led all internal and external development for LionDesk CRM after the acquisition by LoneWolf.
- Managed integrations with Cloud CMA, HomeSpotter, and Transactions.
- Led implementation of an offshore team in Colombia for the LionDesk team with more than 12 multidisciplinary teams of QAs, PMs, scrum masters, and senior, junior, and intern engineers.
- Collaborated with the product to create and formulate solutions.
- Led implementation of 10DLC regulations for LionDesk text campaigns.
Senior Software Engineer
LionDesk
- Implemented an ETL Pipeline processing raw data and converting it. Used GoLang, Kafka, ElasticSearch, Postgres, and MySQL. One billion records are to be processed.
- Created email events from Nylas with high-traffic accounts. Synced tasks, emails, calendars, and events.
- Led an offshore team in Mexico with over ten cross-functional teams with engineers, QAs, scrum masters, and product owners.
- Architected a highly scalable CRM platform that led to the acquisition by LoneWolf.
Senior Full-stack Engineer
CTO.ai
- Implemented Kubernetes resources, i.e., deployments, services, and ingresses.
- Led technical features and discussed architecture and feature requirements with a client.
- Implemented back-end features using Node.js with Feather, Express, Go, and microservices architecture.
- Provided DevOps support on AWS using EC2, CloudFront, ELB, SNS, CloudWatch, and RDS with 100% local development on Docker.
- Implemented front-end features with Vue and ELM and shared libraries on npm.
Lead Developer
Pintellect
- Planned and implemented the system's architecture from scratch.
- Structured the long-term plan for Pintellect, created tasks and managed them.
- Led the development team with around five developers.
- Worked on development from back-end and front-end.
- Worked with Ruby on Rails on the back end and React in the front end.
- Implemented automatized tests with Selenium + Cucumber + Rukuli.
- Used and managed many services from AWS and Heroku.
- Worked heavily on the development of a chrome extension to interact with web page content. Engineered a sidebar that enabled the browser to highlight and create an annotation on top of any webpage opened on Chrome.
Full-stack Developer
Attendease
- Implemented new features covering all software development flow.
- Led the team of three developers, helping them to be focused in the task implementation and making sure that we'll deliver the features in the right time.
- Worked with Ruby on Rails as a back-end solution and Backbone + React in the front-end.
- Coded Ruby modules using the Command/Query pattern to have domain-specific classes and make it easier to test.
- Upgraded some legacy code to be ready for a future Rails upgrade.
- Collaborated with colleagues to define architectural points in the platform.
- Led, planned, and implemented reusable components in React.
Senior Full-stack Developer
Predictable Revenue
- Maintained the system supporting all account strategists and guaranteed that the system is responsive all the time.
- Created materialized views to provide a better user experience.
- Developed on both back-end and front-end.
Senior Software Engineer
Your Wise
- Created a Zero application with Ruby on Rails and AngularJS.
- Implemented continuous deployment in AWS.
- Managed a development team.
- Configured the DevOps operation.
Senior Software Developer
Move Mais
- Worked on the interface along with a third-party development team and a business team.
- Created smart reports for the business area.
Senior Software Developer
TimWE
- Implemented integration between Carrier Nextel and Timwe's services to send and receive SMS by Web Services.
- Maintained an Oracle productions database using PL/SQL to execute queries.
- Communicated with partner companies to apply and implement solutions in our system.
- Maintained a Unix server analyzing logs and their life cycles.
System Analyst
Oi Internet
- Worked on eCommerce software for sale services provided by Oi Telecom.
- Created web apps for a mail-sender service and an authentication service based on JSON.
- Implemented REST architecture with VRator.
- Included integration with back-end systems exposed by SOAP.
- Created tests with Selenium Java to ensure page functionality.
System Analyst
IG - Internet Group
- Developed applications in Java using JEE for web applications.
- Used Scrum methodology to manage app development.
- Imported content from an XML file.
- Led group technical discussions.
- Used a stored procedure to extract BI reports.
System Analyst
TCS - Tata Consultancy Service
- Developed apps in Java using WebLogic Portal version 8.1 sp6 for the Itaipu Binacional Hydroelectric Plant.
- Created a mortgage system and developed new applications for Santander/Real Bank.
- Communicated with a back-end system in the mainframe through messaging software such as JMS.
- Wrote a Java back-end solution.
- Led a small group of five developers.
Java Consultance
Dynamic Tecnologia
- Worked in systems development for Publishing Abril.
- Maintained the Abrilnet system responsible for internal communication.
- Maintained the search engine (FAST).
- Maintained the Passaporte Abril System responsible for authentication of sites within the Abril domain.
- Created several CMS systems such as PWA and FWA, among others.
Experience
Pintellect
It highlights and annotates the key nuggets of content within any external web article, PDF, or website related to the organization or team members. The platform also allows adding context to the information by creating annotations on the source website via a browser extension and establishing permissions on who can see the content within the network. Users can notify team members in comments and annotations by mentioning them via Slack, Teams, and Workplace. They can also organize key takeaways using personal or collaborative pinboards and create a searchable content repository.
I used Chrome extensions to interact with the web page content. I created a sidebar allowing the browser to highlight and create an annotation on top of any page on Chrome.
SGPF Management System and Project Finance
Personal Wedding Website
Education
Bachelor's Degree in Computer Science
University Presbiteriana Mackenzie School of Computing and Informatics - São Paulo, Brazil
Certifications
Sun Certified Programmer for the Java 2 Platform, Standard Edition 5.0 (CX-310- 055)
Sun Microsystems
Skills
Libraries/APIs
Node.js, React, jQuery, Vue, Nylas API, Oracle Java Cloud Services SaaS Extension (JCS-SX), Java Message Service (JMS), Facebook API
Tools
Terraform, Adobe AIR, Visual SourceSafe, Subversion (SVN), Sublime Text, Apache Maven, Sublime Text 3, Eclipse IDE, Apache, NGINX, Grafana, GitLab CI/CD, Git, Codeship, Jira, Slack, Kibana, GitHub
Languages
Ruby, Java, Go, HTML, JavaScript, Stored Procedure, TypeScript, Active Server Pages (ASP), PHP, SQL, C#, Objective-C, Elm, CSS, PHP 7, C++
Frameworks
Ruby on Rails (RoR), Apache Struts, Apache Struts 2, Hibernate, VRaptor, Express.js, Spring, JPA, Grails, Adobe Flex, Jakarta Server Pages (JSP), JUnit, JSF, Angular, Redux, AngularJS, CakePHP, Symfony, Ruby on Rails 4, Swagger, Google Mock (GMock)
Paradigms
Agile Software Development, DevOps, Concurrent Programming, Functional Programming, Aspect-oriented Programming, Management
Platforms
Amazon EC2, NetBeans, Linux, Java EE, Kubernetes, Docker, Apache Kafka, Jakarta EE, Oracle, JBoss, Unix, WebSphere, WebSphere MQ, MacOS, Eclipse, Amazon Web Services (AWS), iOS, Visual Studio Code (VS Code), Azure Functions, Azure
Storage
Memcached, MongoDB, MySQL, Microsoft SQL Server, Oracle 10g, NoSQL, Redis, Membase, PostgreSQL, Elasticsearch
Other
Chrome Extensions, Code Review, Source Code Review, Technical Hiring, Back-end Development, APIs, API Integration, Back-end, Message Queues, Task Analysis, Interviewing, Architecture, Leadership, Web Services, BEA WebLogic Server, Portlets, Enterprise Java Beans (EJB), BrainTree, Argo CD, Atlantis, Algorithms, Web MVC, eCommerce, Front-end
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