Senior Software Engineer Senior System Engineer
Resume:
RAFAEL OLIVEIRA
SENIOR SYSTEM ENGINEER
RESUME
Developer since 2011 with experience in financial, insurance, logistics, security and healthcare sectors, mainly through consultancy. Strong background in Java, NodeJs, Spring Boot, Microservices, Kafka, AWS, GCP, RDBMS, NoSQL, and Clean Architecture / SOLID principles. Experienced in Agile squads using Scrum, focused on scalable, high-performance and maintainable systems. CORE SKILLS
Back-end: Java (13y), NodeJs/Typescript (3y), C# (4y), PHP (1y), Spring Boot, .NET, ExpressJS Cloud: Amazon Web Services (EKS, EC2, S3, Lambda, etc.), Google Cloud Platform Messaging: Kafka, RabbitMQ, ActiveMQ
Databases: Oracle, PostgreSQL, SQL Server, MySQL, DB2, MongoDB, Cassandra, DynamoDB DevOps & CI/CD: Docker, Kubernetes, Jenkins, GitLab, Bitbucket Pipelines Observability: Grafana, Kibana, ElasticSearch
Frontend: Angular (4y), HTML, CSS, JS, Bootstrap
LANGUAGES
Portuguese (Native)
English (Intermediary - B1+/B2 CEFR)
Technical English
********.***@*****.***
Jacareí - SP
EDUCATION
UNINOVE - Centro Educacional Nove de Julho
Feb 2011 - Dec 2014
Bachelor degreed on Science Compute
EXPERIENCES
EPAM
2025/Apr ~ Now
Senior System Engineer
Supported systems for Google focused on geolocation. Investigated production incidents, identified root causes, and implemented fixes. Developed unit tests and implemented continuous improvements. Worked closely with development and operations to ensure stability and performance. GFT
2024/Jul ~ 2025/Apr
Senior System Engineer
Worked on Bradesco Legal Health Insurance and Nuclea projects. Developed microservices using Java + Spring Boot and NodeJs on AWS. Worked with Apache Camel on Nuclea project.
Maintained AngularJS front-end screens.
Pair programming and code reviews in Agile squads. Sysmap - Prevent Senior
Provided services for multiple companies using Java, microservices and monolithic architectures. Delivered full-stack solutions and technical support. 2021/Dec - 2022/May
Senior System Engineer
Sis IT
Developed legal systems for Bradesco health insurance area. Built microservices with Java/Spring Boot and NodeJs. Developed AngularJS screens.
Mentored junior team members.
2022/Jun - 2024/Jul
Senior System Engineer
Itau Bank
Worked on Wholesale and Loans projects.
Migrated systems from monolith to microservices.
Performed system refactoring, improvement development, and unit/integration testing. 2020/May - 2021/Oct
Mid System Engineer
Everis - NTT Data
Worked for Banco Itaú to accelerate development and write unit tests. Implemented clustering and improved ETL system performance by 20%. Supported the team with technical questions and best practices. 2019/Aug - 2020/May
System Specialist
E-safer
Developed timestamp generation systems ensuring legal compliance. Worked as SRE, configuring and managing AWS environments. Provided support and contributed to new scalable features. 2018/Dec - 2019/Jul
Senior System Analyst
TATA Consultancy
Developed systems for Bradesco using AWB and JSF 2. Created SQL Server procedures and optimized queries. Mentored trainees and conducted technical workshops (JavaScript ES6+, Docker, Kubernetes). 2018/Dec - 2019/Jul
Mid-Senior Analyst
Accenture
Collected data from client websites using Google Tag Manager and Google Analytics. Developed dashboards using CodeIgniter.
Improved analytics configurations and extracted CSV data for reporting. 2016/Nov - 2018/Jan
Senior System Analyst
Samsung SDS
Maintained WMS and TMS systems using SAP, Eclipse and Java. Supported operators and ensured stable product storage processes. 2015/Jan - 2016/Jun
Support System Analyst
Direct One
Maintained cloud-based software and supported ETL file loading on Amazon Web Services. Improved performance and reliability of loading systems. 2014/Feb - 2014/Dec
C# Developer
Todo!
Maintained Bradesco web modules integrated with COBOL. Participated in internship and training on Java, MySQL, HTML, CSS, JS, JSP, JSF, and PrimeFaces. 2011/Nov - 2013/Aug
Java Developer
Contact this candidate