Hi, I’m Leonardo da Silva Reis, a Brazilian software engineer based in Indaiatuba, SP. I bring over a decade of hands-on experience building scalable full-stack solutions using Java/Spring Boot, Angular, Python, and Node.js. I thrive on designing robust APIs, cloud-native architectures on AWS, and steering teams toward high-quality software delivery. I enjoy mentoring colleagues and aligning technical choices with business goals. My background spans enterprise back-end/API development, security operations, and DevOps workflows with Docker, Kubernetes/OpenShift, and CI/CD. I’ve worked across Python automation, NoSQL and relational databases, and a range of front-end technologies. I’m fluent in English, comfortable collaborating with global teams, and always eager to learn and tackle new challenges.

Leonardo da Silva Reis

Hi, I’m Leonardo da Silva Reis, a Brazilian software engineer based in Indaiatuba, SP. I bring over a decade of hands-on experience building scalable full-stack solutions using Java/Spring Boot, Angular, Python, and Node.js. I thrive on designing robust APIs, cloud-native architectures on AWS, and steering teams toward high-quality software delivery. I enjoy mentoring colleagues and aligning technical choices with business goals. My background spans enterprise back-end/API development, security operations, and DevOps workflows with Docker, Kubernetes/OpenShift, and CI/CD. I’ve worked across Python automation, NoSQL and relational databases, and a range of front-end technologies. I’m fluent in English, comfortable collaborating with global teams, and always eager to learn and tackle new challenges.

Available to hire

Hi, I’m Leonardo da Silva Reis, a Brazilian software engineer based in Indaiatuba, SP. I bring over a decade of hands-on experience building scalable full-stack solutions using Java/Spring Boot, Angular, Python, and Node.js. I thrive on designing robust APIs, cloud-native architectures on AWS, and steering teams toward high-quality software delivery. I enjoy mentoring colleagues and aligning technical choices with business goals.

My background spans enterprise back-end/API development, security operations, and DevOps workflows with Docker, Kubernetes/OpenShift, and CI/CD. I’ve worked across Python automation, NoSQL and relational databases, and a range of front-end technologies. I’m fluent in English, comfortable collaborating with global teams, and always eager to learn and tackle new challenges.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
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Language

Portuguese
Fluent
English
Advanced

Work Experience

Senior Application Developer at IBM
April 1, 2022 - October 15, 2025
Full-stack/backend developer; Python automation scripts; Node.js RESTful APIs; Angular 2+ front-end; data modeling for PostgreSQL and DB2; NoSQL (MongoDB); Docker and Kubernetes/OpenShift for production releases; contributed to data synchronization and API development with Spring Boot.
Senior Software Architect at CI&T
April 1, 2022 - Present
Senior full-stack software engineer focusing on Java/Spring Boot microservices and Angular front-end; cloud infrastructure tasks on AWS, Kubernetes clusters; dynamic DB; Elasticsearch logging; coaching senior, mid and junior developers; delivering solutions with focus on complexity, performance and business requirements.
Information Security Analyst at IBM MSS SOC
June 1, 2018 - October 15, 2025
Support analysis and device monitoring; security device configurations (firewalls, IPS, IDS, QRadar, proxy); on-site security; vendor liaison (Symantec, Proofpoint); Python automations and Node.js chatbot development; focal point for development projects; daily routines automation.
Analysis and System Development Intern at ACSN Desenvolvimento do Brasil LTDA
July 1, 2014 - October 15, 2025
Started development career; solidified knowledge in Visual Basic and C#; XAML for web development; Silverlight; gained knowledge in application security protocols.

Education

Technologist (System Analysis Development) - Incomplete 5th Semester at IFSP (Instituto Federal de São Paulo – Campus Salto)
January 1, 2013 - October 15, 2025
Technologist (System Analysis Development) - Superior Degree at FATEC Indaiatuba - Dr. Archimedes Lamogia
January 1, 2019 - October 15, 2025

Qualifications

CCNA 1: Network Fundamentals
January 1, 2018 - January 1, 2018
CCNA 2: Routing and Switching
January 1, 2018 - January 1, 2018
Ethical Hacking Foundation – Exin
January 1, 2018 - January 1, 2018
CSP-I - Customer Satisfaction
January 1, 2017 - January 1, 2017
Basic English
January 1, 2010 - October 15, 2025

Industry Experience

Software & Internet, Computers & Electronics, Professional Services, Education, Telecommunications

Experience Level

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

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