Danilo D.

Back-end and Systems Engineer

Senior Java Developer
4/1/2022 - 11/1/2022

Excelled in designing and implementing high-performance applications using Java SE and Java EE technologies. Developed strong technical expertise in Spring Framework, Hibernate, and Apache Kafka to build scalable and robust systems. Acquired extensive experience with various databases, including MySQL, PostgreSQL, and MongoDB, facilitating efficient data management solutions. Utilized tools such as JUnit and Mockito to enhance software quality through comprehensive testing. Engaged in continuous integration and deployment processes using Jenkins and Docker, ensuring seamless and reliable code delivery. Leveraged extensive knowledge of RESTful and SOAP web services to enable interoperable service communication. Demonstrated effective version control management skills with Git, ensuring consistent and organized codebase maintenance. Consistently adhered to agile methodologies, collaborating with cross-functional teams to drive project success and meet dynamic business requirements.

Business & Integration Arch Manager
4/1/2021 - Present

Served as a solution and application architect in a significant e-commerce project, making substantial contributions to both system design and implementation. Developed expertise in Java, Spring Framework, and Hibernate for backend development, ensuring robust and scalable server-side applications. Guided the integration and use of RESTful APIs and SOAP services to facilitate seamless communication between distributed systems. Played a pivotal role in designing microservices architecture, leveraging Docker and Kubernetes for containerization and orchestration. Utilized AWS and Azure for cloud infrastructure, enhancing the scalability and reliability of the e-commerce platform.

Proficient in relational databases like MySQL and PostgreSQL, and NoSQL databases such as MongoDB and Cassandra, ensuring data persistence and integrity. Applied proficiency in frontend technologies, utilizing Angular and React.js for creating responsive and dynamic user interfaces. Implemented CI/CD pipelines using Jenkins and GitLab CI, which significantly improved deployment efficiency and reduced downtime.

Conducted comprehensive performance tuning and optimization, leveraging tools like New Relic and Dynatrace, to maintain high-performance standards. Demonstrated strong skills in Agile methodologies, using JIRA and Confluence for project management and seamless team collaboration. Ensured code quality and sustainability through extensive use of version control systems like Git and SVN. As an architect, ensured adherence to security best practices and compliance standards, integrating tools like SonarQube for static code analysis and various security frameworks for vulnerability management.

E-commerce Architect
8/1/2020 - 4/30/2021

Served as a Solution and Application Architect for Ecommerce projects, specializing in the design and implementation of robust architecture solutions. Developed proficiency in utilizing a variety of tools and frameworks such as Java, Spring Boot, and Hibernate to ensure scalable and efficient ecommerce platforms. Demonstrated advanced knowledge in front-end technologies including Angular and React, enabling the creation of high-performing and user-friendly interfaces.

Extensive work with microservice architectures, employing Docker and Kubernetes for containerization and orchestration. Leveraged cloud platforms like AWS and Azure, ensuring high availability and reliability of applications. Employed RESTful and GraphQL APIs for seamless integration with third-party services and other internal systems. Demonstrated expertise in database management systems including MySQL, PostgreSQL, and MongoDB to facilitate complex data transactions and storage.

Ensured collaborative development and version control using Git, and Continuous Integration/Continuous Deployment (CI/CD) pipelines with Jenkins and GitLab CI. Applied Agile methodologies to manage projects efficiently and participated in Scrum meetings, sprint planning, and retrospective sessions. Developed skills in performance tuning and optimization, conducting code reviews, and implementing best practices to enhance application performance and maintainability.

Additionally, spearheaded the use of advanced security protocols and practices to protect sensitive customer data, including the implementation of OAuth and JWT for secure authentication and authorization. Successfully led cross-functional teams, communicated effectively with stakeholders, and facilitated the translation of business requirements into technical specifications, resulting in the successful delivery of multiple ecommerce projects.

Digital Consultant of Innovation
7/1/2019 - 8/31/2020

Served as the lead technical team lead responsible for designing a new E-commerce solution and integrating new APIs. Enhanced delivery quality through meticulous development and quality assurance processes. Demonstrated advanced proficiency in Hybris and Java development. Utilized Kibana to create detailed metrics and reports, ensuring data-driven decision-making and ongoing performance improvements.

Software Engineer
4/1/2019 - 7/31/2019

Developed new E-commerce solutions and designed API integrations, leveraging expertise in Hybris and Java development. Organized and managed new delivery and team squads, ensuring efficient project execution. Conducted training sessions for new team members, enhancing their technical capabilities and integrating them into team workflows.

Developer Team Lead
12/1/2018 - 4/30/2019

Led a team of developers to deliver innovative E-commerce solutions, showcasing extensive proficiency in both Hybris and Java. Played a pivotal role in the development of new functionalities tailored for retail clients, ensuring a seamless and efficient user experience. Trained new team members, imparting technical skills and best practices to ensure high standards of development.

Freelance Software Developer
1/1/2015 - 12/31/2016

Designed and developed custom Android software tailored to customer specifications, showcasing expertise in Android SDK, Java, Kotlin, and integrating third-party APIs. Employed modern architectural patterns such as MVVM and utilized tools like Android Studio for efficient development. Implemented robust unit and UI tests to ensure high-quality code, and facilitated continuous integration and delivery using Jenkins and Git. Additionally, optimized application performance and improved user interfaces to enhance user experience.

SAP Hybris Architect, SAP Hybris Consultant, SAP Hybris Developer
9/1/2014 - 12/31/2018

Led a SAP Hybris developer team, offering guidelines, training, and task assignment to team members. Solved technical customer incidents related to performance, security, and databases by implementing a variety of solutions. Developed functionalities for customers across all E-commerce areas and designed solutions conforming to Hybris patterns using platform features. Provided guidelines to other delivery teams and acted as the focal point with external delivery teams. Designed SOA and REST integrations, as well as solution and application architectures for customers. Obtained expertise as a Hybris and Java developer.

Software Engineer
2/1/2014 - 8/31/2014

Developed custom functionalities tailored to customer requirements while aiding the team in defining solutions and creating comprehensive guides for the application. Provided highly reusable solutions, ensuring efficient and scalable development practices.

Software Engineer, Inter
6/1/2013 - 1/31/2014

Developed custom solutions to meet customer needs, including the design of a tailor-made dashboard solution. Utilized expertise in various programming languages and frameworks to create seamless and user-friendly interfaces. Applied a combination of front-end and back-end development skills to ensure the dashboard was both functional and aesthetically pleasing.

Junior Java Developer
12/1/2010 - 2/28/2013

Designed and implemented a custom application tailored to customer needs, ensuring a seamless user experience. Configured client servers to optimize performance and reliability, addressing specific requirements. Developed unique functionalities to enhance the application's capabilities, providing bespoke solutions that meet client-specific demands.

Intern Java Developer
2/1/2010 - 1/31/2011

Developed a custom Business Support System (BSC) using the VRAPTOR framework, showcasing strong technical capabilities and a deep understanding of web application development. The role required proficiency in designing and implementing backend systems, addressing business requirements through tailored solutions. This involved close collaboration with team members to ensure seamless integration and functionality, optimizing performance, and enhancing user experience through robust, scalable architecture and applying extensive knowledge of web technologies.

Software Development Intern
1/1/2009 - 1/31/2010

Developed a custom application using JavaME, showcasing expertise in mobile application development for constrained environments. Accomplished significant progress in optimizing resource management within limited hardware capabilities. Implemented robust data handling and communication protocols to ensure efficient operation. Engaged in extensive testing and debugging processes to deliver a seamless user experience, which emphasizes proficiency in mobile-specific software engineering practices and problem-solving skills.

Systems Information at Federal University of Lavras
2008 - 2014

Software Architecture at Institute of Management and Information Technology
2014 - 2016

SAP Certified Product Support Specialist - SAP Hybris Commerce 6.0 at SAP Hybris
3/1/2018

SAP Certified Development Professional - SAP Hybris Commerce 6.2 Developer at SAP Hybris
12/1/2017

H_DEV2_5: hybris Commerce V5 Certification at SAP Hybris
3/1/2016