Guilherme Appel
Full Stack Engineer at Lean Tech- Claim this Profile
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Inglês Full professional proficiency
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Português Native or bilingual proficiency
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Bio
Rodrigo Weber
I worked for almost 3 years with Guilherme, mostly in the same team, where he always proved to be a great programmer, with good programming logic and mastery of the technologies used. He always seeks to evolve technically and use his knowledge to add value to the team. Always seeks the best way to implement the system's functionalities, in order to provide the best possible experience for the user.
Mathias Ody
I have worked with Guilherme in two different companies. He is a very competent programmer and has a particular interest in improving his code and coding style. One of his best qualities is his ability to be always calm and chill when facing adversities. A very open-minded and trustful professional that will always be welcomed as a teammate.
Rodrigo Weber
I worked for almost 3 years with Guilherme, mostly in the same team, where he always proved to be a great programmer, with good programming logic and mastery of the technologies used. He always seeks to evolve technically and use his knowledge to add value to the team. Always seeks the best way to implement the system's functionalities, in order to provide the best possible experience for the user.
Mathias Ody
I have worked with Guilherme in two different companies. He is a very competent programmer and has a particular interest in improving his code and coding style. One of his best qualities is his ability to be always calm and chill when facing adversities. A very open-minded and trustful professional that will always be welcomed as a teammate.
Rodrigo Weber
I worked for almost 3 years with Guilherme, mostly in the same team, where he always proved to be a great programmer, with good programming logic and mastery of the technologies used. He always seeks to evolve technically and use his knowledge to add value to the team. Always seeks the best way to implement the system's functionalities, in order to provide the best possible experience for the user.
Mathias Ody
I have worked with Guilherme in two different companies. He is a very competent programmer and has a particular interest in improving his code and coding style. One of his best qualities is his ability to be always calm and chill when facing adversities. A very open-minded and trustful professional that will always be welcomed as a teammate.
Rodrigo Weber
I worked for almost 3 years with Guilherme, mostly in the same team, where he always proved to be a great programmer, with good programming logic and mastery of the technologies used. He always seeks to evolve technically and use his knowledge to add value to the team. Always seeks the best way to implement the system's functionalities, in order to provide the best possible experience for the user.
Mathias Ody
I have worked with Guilherme in two different companies. He is a very competent programmer and has a particular interest in improving his code and coding style. One of his best qualities is his ability to be always calm and chill when facing adversities. A very open-minded and trustful professional that will always be welcomed as a teammate.
Experience
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Lean Tech
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Colombia
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Strategic Management Services
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300 - 400 Employee
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Full Stack Engineer
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May 2022 - Present
Full Stack Engineer at Knight-Swift Transportation. As the first and main member of my team, I spearhead the establishment of project guidelines, drive the execution of crucial functionalities, and guarantee software reliability and robustness. Utilizing a diversified tech stack, including C# .NET Core 6, React.js, Redux, Vue.js, Vuex, GraphQL, Elasticsearch, Docker, Logstash, and Kafka, I take on a myriad of responsibilities. Beyond development, I ensure the thoroughness of our software through comprehensive unit tests, employing xUnit, Moq, and Fluent Assertions. Our workflow follows an agile Scrum framework, managed via Jira for Kanban and dashboard oversight, and Gitlab for version control. Key Accomplishments: - Implemented ETL pipelines for seamless data migration from IBM AS400 to Elasticsearch databases, processing over 3 million messages daily. - Collaborated in the full development cycle of an end-to-end web application that helps company planners optimize truck and driver assignments based on order priority. - Successfully integrated critical third-party APIs to monitor transit time, market rates, and other key metrics. - Led and streamlined code review processes, ensuring adherence to top-tier coding standards and practices. - Troubleshooted and debugged complex issues, and found solutions to technical problems. Show less
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DBC Company
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IT Services and IT Consulting
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700 & Above Employee
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Team Leader | Full Stack Engineer
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Jun 2020 - May 2022
As a Full-Stack Developer at Arezzo&Co, I held a critical position on the development team, playing a key role in shaping business logic, integrating software architectures, and selecting cutting-edge technologies for new product rollouts. Utilizing an array of technologies like C# .NET Core 5, React.js, TypeScript, PostgreSQL, RabbitMQ, Docker and AWS EKS, I was also responsible for the upkeep of legacy applications built on C# .NET Core 3.1, Angular, Ionic, Oracle, MySQL, and AWS Lambda. My contributions extended to both product development and ongoing maintenance, with a special focus on unit testing using xUnit, Moq, and Fluent Assertions. Our team operated within an Agile Scrum framework, leveraging Azure DevOps for Kanban management, dashboard analytics, and Git repository control. Notable Achievements: - Pioneered the migration of a legacy system to a modern platform, participating in all stages of the project, including backend and frontend development. - Spearheaded the development and launch of an innovative feature, resulting in a 30% increase in company sales during the first quarter after its release. - Emerged as the primary technical expert and served as the go-to resource for other developers, providing expertise and guidance on various projects. - Advised and coached junior software engineers, providing guidance and support as they developed their skills and expertise. Show less
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Secullum Software
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Brazil
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Software Development
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1 - 100 Employee
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Full Stack Developer
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Aug 2017 - Jun 2020
As a Full Stack Developer within a Scrum team, my contributions spanned the architecture and implementation of comprehensive systems for time card computations and access control across desktop, mobile, and web platforms. My tech stack included Git, C#, Entity Framework, ASP.NET Core, Razor, Electron, React.js, Redux, and React Native. I was primarily responsible for building core features in both an access control system and a time card calculation tool, significantly boosting usability and system performance. In addition to coding, I actively took part in code reviews and pair programming, maintaining open communication channels with stakeholders to accurately gather requirements and ensure prompt project delivery. Key Milestones: - Seamlessly integrated multiple third-party APIs to enhance the management of access control points. - Orchestrated the integration of multiple third-party physical devices, including access control points, turnstiles, and parking barriers, into an access control software system using socket programming. - Developed a React Native app with 10k+ downloads, to assist parking facilities in managing parked vehicles. - Contributed to the development of software for managing company employee time cards and work hours, with over 5 million registered users. Show less
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Education
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2016 - 2022
FACCAT - Faculdades Integradas de Taquara
Bachelor's, Information Systems
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