Profilbild von Samuel Rizzo Senior Java / Ruby on Rails Full Stack Developer aus Berlin

Samuel Rizzo

verfügbar

Letztes Update: 30.10.2023

Senior Java / Ruby on Rails Full Stack Developer

Firma: Upbits OÜ
Abschluss: nicht angegeben
Stunden-/Tagessatz: anzeigen
Sprachkenntnisse: englisch (verhandlungssicher) | portugiesisch (Muttersprache)

Dateianlagen

Samuel Rizzo CV.docx

Skills

Java, Spring Boot, Ruby on Rails, React, Vue.js, Kubernetes, Docker, AWS, Microservices, DevOps, Jenkins, Continuous Delivery, Agile, Scrum, Kanban

Projekthistorie

06/2017 - bis jetzt
Senior full stack developer | Freelancer
Freelancer

Independent consultant for multiple clients and projects:
  • Helped a fast-growing German used-car portal build and launch an important and strategic product. Skills: Kotlin, Java, Microservices, Spring Boot, AWS, Kinesis, Kubernetes, Docker, Terraform
  • Helped an online marketplace adopt Elasticsearch and increase 33x performance. Skills: Elasticsearch
  • Helped two German potential co-founders with the development of a fully functional prototype. Skills: Ruby on Rails, ActiveAdmin, MySQL
  • Interim tech lead for a German online catering platform. Skills: Ruby on Rails, Vue.js, AWS, Cloud66, Semaphore CI, PostgreSQL, Scrum
  • Multiple projects for XING. Skills: Ruby on Rails, React, Redux, REST APIs, RabbitMQ, MySQL, Jenkins, Docker, Kubernetes

09/2015 - 05/2017
Senior developer, Ruby on Rails | XING
XING

Permanent position at the massive German career-oriented social network.
  • Developed scalable and highly available software that served 12+ million users, hundreds of requests per second.
  • High performing, Continuous Delivery/Agile/Scrum environment
  • Mentored, interviewed, and onboarded multiple working students, new employees, and freelancers.
Skills: Ruby on Rails, REST APIs, RabbitMQ, MySQL, Jenkins, Scrum

08/2014 - 07/2015
Full stack developer, Ruby on Rails | Meetyl
Meetyl

Joined Meetyl, a startup that connected companies and investors.
  • Shipped high-quality software in a fast-paced environment
  • Rewrote the Elasticsearch-based company/investor search and matching engine with improved performance and maintainability
  • Introduced a Hadoop/Hive-based solution that enabled ingestion and analysis of millions of records of financial data
Skills: Ruby on Rails, Elasticsearch, AngularJS, Hadoop, Hive

10/2012 - 06/2014
Senior software architect, Java | Capgemini
Capgemini

Worked for Capgemini as a consultant at the Brazilian National Agency of Petroleum, Natural Gas and Biofuels.
  • Was part of the software architecture team, overseeing multiple projects and teams
  • Developed and maintained enterprise-wide shared components
  • Provided architectural guidelines and assessed code quality and adherence to it
Skills: Java, Java EE 6, JPA 2, EJB 3.1, CDI, Jenkins, Sonar, Weld, JBoss Seam 3, JSF 2.1, PrimeFaces 4, JBoss EAP 6.1, Oracle, SOAP and RESTful Web Services (JAX-WS and JAX-RS, JAXB), Maven, UML

08/2011 - 04/2012
Tech lead, Java | Spassu Tecnologia e Serviços
Spassu Tecnologia e Serviços

Permanent employment at Spassu’s software house.
  • Tech lead of 3 small teams
  • Full stack development
  • Software architecture of multiple projects
Skills: Java, JBoss Seam 2, RichFaces 3, JBoss AS 5, MS Sql Server, Oracle, UML

12/2010 - 08/2011
Senior software architect, Java | CTIS
CTIS

Worked for CTIS as a consultant at the Brazilian National Agency for Cinema.
  • Maintained a custom Java framework and components, shared by all projects
  • Provided technical support and architectural guidelines to an external software provider
Skills: Java, Jenkins, JBoss Seam 2, RichFaces, JPA 1, Oracle, JBoss AS 5, UML

10/2009 - 11/2010
Senior full stack developer, Java | FEMAR - FUNDAÇÃO DE ESTUDOS DO MAR
FEMAR - FUNDAÇÃO DE ESTUDOS DO MAR

Worked for Brazilian’s Navy Systems Analysis Center on the rewrite of their maritime commerce operations game-like simulator, used for educational purposes in one of their instruction centers.
  • Developed the Java/Spring/Hibernate backend
  • Contributed to the development of the Adobe Flex frontend
Skills: Technologies: Java 5, Spring 3, Hibernate 3, Ehcache, Adobe Flex 3, MySQL

10/2007 - 02/2009
Full stack developer, Java | Ideais Tecnologia
Ideais Tecnologia

Developer at Ideais, a software house. Full stack development of multiple projects of multiple clients
Skills: Java, Spring 3, Struts 2, Hibernate 3, Prototype, JQuery, Selenium, Oracle, MySQL

04/2007 - 05/2007
Java developer | Victus Consultoria
Victus Consultoria

Short contract as a Java developer. Skills: Java, EJB 3, JPA, Struts 1

12/2006 - 03/2007
Java developer | M.I. Montreal Informatica
M.I. Montreal Informatica

Permanent employment as a Java developer in a software house. Skills: Java, Struts 1, EJB 2, JDBC, Oracle, UML. 

07/2006 - 10/2006
Java developer | Synos Technologies
Synos Technologies

Short internship, already in my first semester at University. At that time, I was already a Sun Certified Java Programmer, and shortly after became a Sun Certified Web Components Developer. Skills: Java, JDBC, Oracle

Reisebereitschaft

Weltweit verfügbar
European citizen, available to travel / relocate inside the EU.

Sonstige Angaben

I'm a freelancer specialized in Java, React, Ruby on Rails, and AWS. I have over 14 years of combined experience as a Full-stack Developer, Software Architect, and Tech Lead, accumulated across well-established companies as well as early-stage startups.
Profilbild von Samuel Rizzo Senior Java / Ruby on Rails Full Stack Developer aus Berlin Senior Java / Ruby on Rails Full Stack Developer
Registrieren