Ivã martins

Technologies: C# (.NET 6/7/8), Python, Java, VRaptor, FastAPI, Pydantic, pandas, Azure Functions, Azure Service Bus, Azure Storage, SQL Server, T-SQL, OpenAPI, Confluence, Jira, Claude, ChatGPT

- Built and maintained high-volume backend applications using C# and Python on Azure Functions, supporting large-scale advertising data workflows for Quartile’s AI-powered retail media optimization platfor

Client projects at SoftDesign: Osvaldo Cruz Hospital (~2014–2015) | AutoDB (~2015–2017) | Sicredi (~2017–2021)

Technologies: Java 8, Python 3.x, Spring Boot 1.x/2.x, Spring Cloud, Kotlin 1.3+, Scala 2.11/2.12, Play Framework 2.x, Akka Actors 2.5.x, Apache Flink 1.x, Kafka 2.x, Oracle, MongoDB 3.x, Redis, Cassandra 3.x, MariaDB, Elasticsearch 2.x/5.x, AWS, Git, Jenkins, Microservices, BFF, Event-D

Client: Panvel

Technologies: Java 7, Spring Framework 3.x/4.x, Spring Security, Hibernate 4.x, JSF 2.x, RichFaces, PrimeFaces Mobile, Quartz, JBoss, Web Services

- Led Scrum methodology implementation within the team and development of mobile e-commerce using PrimeFaces Mobile for Panvel (one of Brazil’s largest pharmacy chains), accelerating agile delivery and expanding the platform to mobile c

Client project: CIEE-RS

Technologies: Java 5/6, Struts 1.x/2.x, Spring 2.x/3.x, Hibernate 3.x, JSP, Ingres, SVN, Hudson

- Performed long-term evolutionary development and maintenance (over 5 years) of the high-volume CIEE-RS web recruitment platform, responsible for connecting candidates to internship and apprenticeship opportunities for a large user base across Brazil.

- Led the migration of a

Client project: SICREDI

Technologies: Java 5, Spring Framework 2.x, JSF, Hibernate 3.x, Oracle, PL/SQL

- Participated in the migration project from Sicredi’s legacy banking core to Oracle FLEXCUBE, contributing to the transition of a major financial institution’s core system.

- Developed and maintained peripheral systems for CEP and street registration using Java 5, Spring and Hibernate, adapti

Technologies: Java 5, Struts Framework 1.x, JSP, JasperReports, iReport, JFreeChart, Cewolf, HTML, JavaScript, AJAX, VSS, PostgreSQL

- Developed corporate web applications for business marketing (company agenda, newsletter and SMS sending campaigns) using Java with Struts, DAO pattern and reporting tools (JasperReports, JFreeChart), automating processes and delivering actionable insights to clien

Technologies: Java 1.4, Struts Framework 1.x, JSP, JavaScript, HTML, SQL, E-Gen, PostgreSQL

- Developed a web-based ERP system using Java 1.4, Struts Framework and the E-Gen tool, implementing business rules, database integration and backend components to automate client operational processes.

- Created web functionalities and user interfaces with HTML and JavaScript, delivering practical fronte

Focus: Modern backend development with Java 17+, Spring Boot 3 and Quarkus (native compilation), event-driven microservices, Kubernetes-native applications, and enterprise AI integration using LangChain4j with RAG and Agentic AI patterns.

Jun 2012