I am a Senior Java Software Engineer with over 15 years of experience delivering high-quality IT solutions. I have an international and multicultural background and am passionate about agile practices and modern development methodologies. I specialize in designing scalable back-end systems, microservices, and API integration, leveraging Java, Spring Boot, and automation to drive efficiency. I thrive in dynamic, collaborative environments and am proactive in adopting new technologies to deliver reliable, high-quality solutions.

Jefferson Monteiro

I am a Senior Java Software Engineer with over 15 years of experience delivering high-quality IT solutions. I have an international and multicultural background and am passionate about agile practices and modern development methodologies. I specialize in designing scalable back-end systems, microservices, and API integration, leveraging Java, Spring Boot, and automation to drive efficiency. I thrive in dynamic, collaborative environments and am proactive in adopting new technologies to deliver reliable, high-quality solutions.

Available to hire

I am a Senior Java Software Engineer with over 15 years of experience delivering high-quality IT solutions. I have an international and multicultural background and am passionate about agile practices and modern development methodologies.

I specialize in designing scalable back-end systems, microservices, and API integration, leveraging Java, Spring Boot, and automation to drive efficiency. I thrive in dynamic, collaborative environments and am proactive in adopting new technologies to deliver reliable, high-quality solutions.

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
See more

Language

Portuguese
Fluent
English
Advanced
Spanish; Castilian
Beginner

Work Experience

Technical Solution Analyst – Java core, Spring and Spring boot at Credit Union SA
August 1, 2024 - Present
API Evaluation and Development for REST and SOAP APIs; developing and maintaining APIs for Core Banking, Internet Banking, and Lending Platforms; collaborating with third-party vendors to ensure standards and security; Software development with focus on API usability and industry standards; automation initiatives using Postman, Docker, and CI/CD; building web application solutions to improve regression testing; detailed technology and systems analysis; stakeholder and vendor collaboration.
Senior Software Engineering – Java 8, Java 11, Java EE, Spring Boot at Critical TechWorks
July 1, 2024 - October 16, 2025
Developed new features for the MAPP System (BMW assembly line) with JavaFX front end using MVVM; implemented REST services with Spring Boot integrated to the front end; assisted as DevOps to configure Jenkins pipelines and CI/CD; provided operational support and bug fixes; worked with Oracle 11 database.
Senior Consultant Developer – Java core, Spring and Spring boot at Inetum
January 1, 2024 - October 16, 2025
Analyzed, interpreted, and implemented code per technical specs; migrated legacy AS-400 (IBM) framework to Java; developed REST services with Spring and JPA for insurance software (Cleva Life); Oracle databases; provided CI/CD and customer support.
Senior Software Engineer – Java Core, EE, Spring Boot at Wipro Limited
August 1, 2021 - October 16, 2025
Developed and maintained Mastercard Digital Identity products; Java REST services based on Spring Boot; microservices architecture; enterprise security solutions; cybersecurity and intelligence projects; implemented batch processes and JMS with Kafka; worked with PCF (Pivotal Cloud Foundry) and Chef for CI/CD.
Senior Consultant Analyst – Java Hybris at FH Consulting (E-commerce - Hering)
February 1, 2018 - October 16, 2025
Hybris-based e-commerce platform development and maintenance; requirements gathering and elicitation; bug fixes and support; ensuring stable e-commerce solutions for clients such as Hering, Pearson and Dpaschoal.
Senior Mobile Developer – Android Native at Bradesco – Scopus
March 1, 2017 - October 16, 2025
Developed Android native applications (Bradesco Saúde, Clube de Vantagens) and integrated backend REST services (Spring Boot); bug fixes and technical support.
Junior/ Pleno/ Senior Software Developer - Java Core, EE, Spring Boot, BPM at HSBC – GLT (Global Technology)
March 1, 2016 - October 16, 2025
Development and support of banking applications using Spring, Hibernate/JPA; REST Web Services with JSON; Oracle 9i database maintenance; global developer lead on CBID (Correspondent Bank Identifier); agile practices and involvement in CMMI Dev certification.
Junior Software Developer – VB6, SQL Server at Infomatrix
August 1, 2008 - October 16, 2025
Analysis and development of Tekton process-control systems; VB6 and SQL Server.
Trainee – Oracle PL/SQL, Crystal Reports at DB Master Systems LTDA
January 1, 2008 - October 16, 2025
Assisted in analysis and maintenance of stored procedures; Crystal Reports reporting; PL/SQL development.
Trainee – VB Script, Elipse E3 at Roque e Correia LTDA
March 1, 2007 - October 16, 2025
Development of applications for automation systems; VB Script and Elipse E3 programming; UI development and engineering support.
Senior Backend Developer at Credit Union SA
August 1, 2024 - January 1, 2026
API Evaluation and Development: Conduct comprehensive evaluations of REST and SOAP APIs; Develop and maintain APIs for Core Banking, Lending Platforms, and Internet Banking. Collaborate with third-party vendors to understand API offerings, assess compatibility, and ensure security and standards. Programming & Software Development: Participate in projects focusing on API usability, compliance with industry standards, and addressing development challenges. Manage change control processes, handle change requests, and ensure operational effectiveness in API-related systems. Automation Implementation: Lead automation initiatives using Postman, Docker, and CI/CD pipelines to improve testing speed and accuracy. Build web application solutions to streamline regression testing. Solutions Analysis: Engage stakeholders to define system requirements and guide integration of API designs.
Senior Software Engineering at Critical TechWorks
January 1, 2024 - July 1, 2024
Developed features and maintenance for MAPP System (BMW assembly line planning), using Java 8/11, JavaFX front-end, and Spring Boot REST services; Built a component library based on MVVM pattern; Set up Jenkins CI/CD pipelines for deployment; Provided Operational Support to resolve bugs and optimize performance. Databases: Oracle 11.
Senior Consultant Developer at Inetum
September 1, 2021 - January 1, 2024
Analyze and rewrite legacy AS-400 (IBM Framework) code to modern Java versions; Implemented REST services using Spring with JPA mappings for Cleva Life insurance software; Supported Oracle 9i/10 data; Provided client and team support.
Senior Software Engineer at Wipro Limited
February 1, 2018 - August 31, 2021
Led development and maintenance of Mastercard Digital Identity products; built REST services with Spring Boot in microservices architecture; contributed to Cyber Security and Intelligence (C&I) cloud web platform; implemented security services to prevent fraud; used Spring Batch and JMS with Kafka; worked with Pivotal Cloud Foundry.
Senior Consultant Analyst at FH Consulting (E-commerce - Hering)
March 1, 2017 - February 1, 2018
Hybris e-commerce development; requirements elicitation; maintenance; supported clients such as Hering, Pearson and Dpaschoal.
Senior Mobile Developer at Bradesco – Scopus
August 1, 2016 - March 1, 2017
Development of native Android apps; Bradesco Saúde and Clube de Vantagens; integrated backend REST services with Spring Boot; support and bug fixes.
Software Developer at HSBC – GLT (Global Technology)
August 1, 2008 - March 1, 2016
Development and support of banking applications using Spring, Hibernate/JPA, and REST/JSON; maintenance of Oracle 9i database; global developer lead on CBID project; agile practices and service-oriented architecture.
Junior Software Developer at Infomatrix
March 1, 2008 - August 1, 2008
Analysis and development of Tekton process-control systems in VB6 and SQL Server.
Trainee at DB Master Systems LTDA
August 1, 2007 - January 1, 2008
Oracle PL/SQL development and Crystal Reports; assist in stored procedures and reporting.
Trainee at Roque e Correia LTDA
August 1, 2006 - March 1, 2007
VB Script and Elipse E3-based automation and UI development for automation systems.

Education

Specialist in Java Technology and Mobile Development at UTFPR
January 11, 2030 - September 8, 2013
Bachelor’s degree in System Analysis at PUC-PR
January 11, 2030 - January 25, 2010
Medical Radiology Technology at UTFPR
January 11, 2030 - June 12, 2008
Specialist in Java Technology and Mobile Development at UTFPR
January 11, 2030 - September 8, 2013
Bachelor’s degree in System Analysis at PUC-PR
January 11, 2030 - January 25, 2010
Graduated in Medical Radiology Technology at UTFPR
January 11, 2030 - June 12, 2008

Qualifications

AWS Certified Solutions Architect – Associate
January 11, 2030 - October 16, 2025
Microsoft Certified: Azure Fundamentals
January 11, 2030 - October 16, 2025
Verified International Academic Qualifications (WES)
January 11, 2030 - October 16, 2025
AWS Certified Solutions Architect – Associate
January 11, 2030 - February 22, 2026
Microsoft Certified: Azure Fundamentals
January 11, 2030 - February 22, 2026
Verified International Academic Qualifications (WES)
January 11, 2030 - February 22, 2026

Industry Experience

Financial Services, Manufacturing, Software & Internet, Retail, Transportation & Logistics, Media & Entertainment, Professional Services, Other