JM

Jefferson Monteiro

Available to hire

I am a Senior Java Software Engineer with over 15 years of experience delivering high-quality IT solutions.

About

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.

  • 20 years' experience
  • Joined October 2025

Languages

  • PortugueseFluent
  • EnglishAdvanced
  • Spanish; CastilianBeginner

Industry experience

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

Work experience· 20 roles

Senior Backend Developer · Credit Union SAAug 2024 – Jan 2026 · 1 yr 6 mos

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.

Technical Solution Analyst – Java core, Spring and Spring boot · Credit Union SAAug 2024 – Present · 2 yrs 4 mos

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 · Critical TechWorksJul 2024 – Oct 2025 · 1 yr 4 mos

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 Software Engineering · Critical TechWorksJan 2024 – Jul 2024 · 7 mos
Senior Consultant Developer – Java core, Spring and Spring boot · InetumJan 2024 – Oct 2025 · 1 yr 10 mos
Senior Consultant Developer · InetumSep 2021 – Jan 2024 · 2 yrs 5 mos
Senior Software Engineer – Java Core, EE, Spring Boot · Wipro LimitedAug 2021 – Oct 2025 · 4 yrs 3 mos
Senior Software Engineer · Wipro LimitedFeb 2018 – Aug 2021 · 3 yrs 7 mos

Education· 6

Specialist in Java Technology and Mobile Development · UTFPR2030 – 2013
Bachelor’s degree in System Analysis · PUC-PR2030 – 2010
Medical Radiology Technology · UTFPR2030 – 2008
Specialist in Java Technology and Mobile Development · UTFPR2030 – 2013

Certifications and awards· 6

AWS Certified Solutions Architect – Associate2030 – 2025
Microsoft Certified: Azure Fundamentals2030 – 2025
Verified International Academic Qualifications (WES)2030 – 2025
AWS Certified Solutions Architect – Associate2030 – 2026

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