Daniele Leão
São Paulo
Summary
Seasoned Java Specialist with over 16 years of experience and a deep expertise in developing scalable and innovative software solutions. My career has been defined by my proficiency in Java and a robust understanding of backend technologies, including Spring Boot, Kafka, and microservices architecture. One of my significant accomplishments includes transforming a monolithic credit management system into a microservices architecture for a real estate credit company, which reduced the proposal response time from 3 days to just 5 minutes, significantly enhancing operational efficiency and client satisfaction. Additionally, I spearheaded the development of a comprehensive payment gateway system, integrating secure payment processing and invoice generation features. My technical skills are complemented by a passion for mentoring and educating the next generation of developers. I have delivered impactful training in Java and Node.js, while also guiding career development for emerging professionals. I am dedicated to continuous learning and innovation, with a strong focus on advancing my skills as a software engineer and contributing to cutting-edge projects that drive technological progress. Currently, I am eager to embrace new challenges that leverage my extensive experience and technical expertise to push the boundaries of software engineering. I am also actively studying to achieve AWS Solutions Architect certification, aiming to further enhance my proficiency in cloud technologies and solutions.
Overview
15
15
years of professional experience
Work History
Engineering Manager
CrediPronto
11.2023 - Current
- Restructured the engineering team, integrating development, DevOps, security, and code quality teams to enhance collaboration and efficiency. - Developed and implemented application monitoring dashboards using Prometheus with Grafana, significantly improving real-time system performance visibility. - Internalized RPA products developed with Java and Node.js from an external vendor, resulting in substantial cost savings and increased control over automation processes. - Mentored team members through 1:1 sessions and career development plans, boosting their technical skills and overall knowledge, which strengthened the team's capabilities.
- Designed and streamlined department processes, leading to a notable reduction in incidents and improved operational efficiency. - Introduced comprehensive documentation practices to the team, enhancing knowledge sharing and process consistency.
- Led efforts to align applications and environments with ISO 27001 standards, ensuring improved security and compliance. - Collaborated with stakeholders to define and refine the technical architecture, aligning solutions with business objectives and scalability requirements.
Software Engineering Manager
Loggi
08.2023 - 11.2023
- Supported technical refinements across projects, enhancing system design and implementation to meet evolving business requirements
- This led to a reduction in team misunderstandings regarding business rules.
- Developed and executed career development plans for team members, fostering professional growth and aligning individual goals with organizational objectives.
- Created and maintained comprehensive process documentation, improving clarity and consistency across technical workflows and facilitating better knowledge transfer.
Technical Lead
CrediPronto
04.2022 - 08.2023
- Engineered a secure document upload solution for AWS S3, effectively eliminating previous vulnerabilities and significantly enhancing document protection. - Developed a robust health check library, allowing for comprehensive and continuous monitoring of all integrations and ensuring system reliability.
- Implemented a seamless integration between Java Spring Boot authentication and Keycloak, strengthening security measures and safeguarding application access.
- Created an efficient Node.js feature to integrate with an external service, drastically reducing response time from 3 days to just 5 minutes, optimizing operational efficiency.
- Spearheaded the transition from a monolithic PHP architecture to a microservices framework using Java and Node.js, applying DDD, TDD, Hexagonal Architecture, and Clean Architecture to deliver a more reliable, resilient, and robust system.
- Provided Node.js training to team members to enhance their skills and proficiency in the technology.
- Configured and managed the AWS API Gateway to facilitate secure and scalable access to application APIs.
Expert Java E Node
Rocketseat
11.2019 - 03.2022
- Taught core Java concepts including object-oriented programming, data structures, and algorithms, ensuring a solid foundation for students. - Instructed on advanced topics in Spring Framework, such as Spring Boot and Spring Security, equipping students with skills to build robust and secure applications.
- Mentored students through one-on-one sessions, providing career guidance and technical support to help them achieve their goals in software development.
- Actively participated in and contributed to the technology community by organizing workshops, seminars, and coding meetups.
- Taught Node.js, focusing on backend development, server-side JavaScript, and integration with databases and APIs to build efficient server-side applications.
Senior Software Engineer
Leroy Merlin
09.2019 - 12.2019
- Developed a new marketplace product using Spring Boot, implementing Domain-Driven Design (DDD) principles to ensure scalable and maintainable architecture.
- Designed and optimized backend services, enhancing performance and reliability of the marketplace platform through efficient data handling and robust error management.
- Collaborated closely with cross-functional teams to integrate the new product with existing systems, ensuring seamless functionality and alignment with business requirements.
Senior Software Engineer
Open Co
01.2019 - 08.2019
- Developed a Java-based RPA feature using Spring Boot to automate the collection of users' banking history directly from their financial institutions, significantly improving data accuracy and processing efficiency, and reducing loan approval time.
- Engineered a loan feature that calculated and displayed payment installments and interest rates, and implemented associated frontend functionality using React, enhancing the user experience with clear and interactive financial information.
- Contributed to the development of critical financial software for the real estate credit sector, ensuring compliance with industry standards and delivering reliable, secure solutions.
Staff Software Engineer
Universidade Cidade de São Paulo
01.2018 - 01.2019
- Led the migration of a university's student portal from a Servlet-based architecture to microservices using Spring Boot, transforming the system to better manage the entire student journey within the platform.
- Integrated Kafka for reliable message queuing and orchestration, enhancing communication between microservices and ensuring seamless data consistency throughout the student portal.
- Directed the integration teams and implemented a modern Angular frontend, significantly improving user experience and providing a more dynamic and responsive interface for students.
- Implemented Scrum methodologies, leading integration teams to bring more agility and efficiency to the development process, alongside introducing a modern Angular frontend to enhance the student user experience.
Staff Software Engineer
Integra Soluções
08.2017 - 01.2018
- Developed a comprehensive payment gateway system using Spring Boot, enabling small businesses to integrate seamlessly and provide payment links for their customers, covering all aspects from backend to frontend development.
- Implemented a feature for invoice generation, automating the process of issuing tax receipts and ensuring compliance with financial regulations.
- Led the deployment of the payment gateway system on AWS, ensuring scalability, security, and reliability, and providing a fully integrated solution for small businesses.
Software Engineer
Prevent Senior
03.2017 - 07.2017
- Developed backend services in Java using Jersey to implement a REST architecture for a hospital bed management system, reducing patient wait times by optimizing bed allocation.
- Created dynamic and responsive frontend interfaces using Angular 2 and 4 with Material Design, significantly improving the user experience for hospital staff.
- Developed a medication management feature, improving the medication administration workflow and overall efficiency in the hospital, leveraging a tech stack that included Jersey REST, Wildfly, Angular, Bootstrap, and Material Design.
Software Engineer
Integra Soluções
06.2016 - 03.2017
- Developed a web-based system in Java, integrating payment and invoice APIs, utilizing a robust tech stack that included Spring MVC, Spring Boot, Spring Security, JSF 2, and Thymeleaf, ensuring secure and efficient transaction processing.
- Led the IT team in requirement analysis, documentation, and project management, implementing Scrum methodologies to improve project delivery timelines and team collaboration.
- Managed the deployment and maintenance of environments with SSL security, ensuring system reliability and data protection, while coordinating across databases like Oracle, MySQL, and PostgreSQL.
Software Engineer
Prevent Senior
03.2015 - 05.2016
Software Engineer
Indra
06.2013 - 01.2015
Software Engineer
VOLANS
10.2012 - 07.2013
Software Engineer
Arizona
04.2011 - 10.2012
Software Engineer
Linx
04.2010 - 04.2011
Software Engineer
Orion Digital
02.2010 - 03.2010
Education
Executive MBA, Gestão de Tecnologia da Informação -
FIAP
04.2024
Graduação, Sistemas de Informação -
Universidade Anhembi Morumbi
01.2011
Skills
- Java
- Spring Boot
- TDD
- SQS
- Microservices
- JPA
- Apache Kafka
- API Gateways
- Node
- TypeScript
Timeline
Engineering Manager
CrediPronto
11.2023 - Current
Software Engineering Manager
Loggi
08.2023 - 11.2023
Technical Lead
CrediPronto
04.2022 - 08.2023
Expert Java E Node
Rocketseat
11.2019 - 03.2022
Senior Software Engineer
Leroy Merlin
09.2019 - 12.2019
Senior Software Engineer
Open Co
01.2019 - 08.2019
Staff Software Engineer
Universidade Cidade de São Paulo
01.2018 - 01.2019
Staff Software Engineer
Integra Soluções
08.2017 - 01.2018
Software Engineer
Prevent Senior
03.2017 - 07.2017
Software Engineer
Integra Soluções
06.2016 - 03.2017
Software Engineer
Prevent Senior
03.2015 - 05.2016
Software Engineer
Indra
06.2013 - 01.2015
Software Engineer
VOLANS
10.2012 - 07.2013
Software Engineer
Arizona
04.2011 - 10.2012
Software Engineer
Linx
04.2010 - 04.2011
Software Engineer
Orion Digital
02.2010 - 03.2010
Executive MBA, Gestão de Tecnologia da Informação -
FIAP
Graduação, Sistemas de Informação -
Universidade Anhembi Morumbi
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