Diogo Cezar - Portfolio

01About Me

Diogo Cezar

My Journey in Technology and Leadership

From my first steps in development, I found in technology a way to turn ideas into reality and help people. My journey has been guided by curiosity and a constant desire to learn and share knowledge, leading me to specialize in Artificial Intelligence and lead technology teams.

I believe that technology gives people superpowers, and with great power comes great responsibility. This vision inspires me to wake up every day excited to think about how I can use my skills to make a difference. Creating innovative solutions, especially using AI, is one of my main areas of interest and continuous study.

My commitment to technology goes beyond tools and programming languages; it is about building a culture where collaboration and mutual assistance are fundamental pillars. I believe in the importance of happy and engaged teams, and I strive to create environments where autonomy and trust are essential values.

Seeking new opportunities, I am looking for leadership roles in technology that allow me to apply my experience to build high-performance teams, always focusing on innovation and customer satisfaction. My goal is to grow in technology leadership and continue delivering results that make a difference, always guided by honesty, respect, and passion for what I do.

02Education Background

  • PHD COMPUTER ENGINEERING - CREDITS ONLY

    2020~2021 - UFPR

    I have completed the credits in the subjects of Machine Learning, Seminars, and Topics in HCI.

  • MASTER DEGREE COMPUTER SCIENCE

    2010~2012 - UFPR

    A model for execution of scientific workflows using automatic planning techniques.
    LIAMF - Laboratório de Inteligência Artificial e Métodos Formais.

  • TECHNOLOGY INFORMATION SYSTEM DEVELOPMENT

    2004~2007 - UTFPR

    Adaptative hypermedia approach based on optimisation by any colony.

03Main Professional Background

  • Typper

    FEB 2023~NOW / CEO AND CO-FOUNDER

    As the CEO of Typper, one of the top 100 technology startups in Brazil (by F6S), achieved a user base of over 50k, with more than 15k images, 17k texts, and 35k codes generated using AI.

    My responsibilities include setting the strategic direction of the company, overseeing product development, managing the team, ensuring financial stability, and building partnerships. I am committed to fostering a culture of innovation and driving the company towards long-term success.

    Typper.io was born from the collective energy of four passionate tech enthusiasts who love technology, entrepreneurship, and artificial intelligence. As one of the founders and CEO, I am proud to say that Typper was an evolution of our previous venture.

    In a remarkably short time, we have achieved incredible milestones, continuously growing and gaining visibility. Our team is dedicated to developing products that simplify the most tedious tasks, making daily routines more efficient and productive.

    Typper.io offers a suite of products designed to be your personal assistant. These include Typper BI for business intelligence, Typper Texts for document creation, Typper Images for visual content, and Typper Codes for coding assistance. Together, these tools help you work smarter and more effectively every day.

    • Team Leadership
    • Strategic Planning
    • Process Improvement
    • Culture
    • Career Counseling
    • Financial Analysis
    • Artificial Intelligence
    • Team Management
    • Task Prioritization
    • Strategic Partnerships
    • Personal Development Plan
    • Usability
    • Metabase

  • BANKME

    SEP 2022~MAI 2024 / HEAD OF TECHNOLOGY

    Created a robust technological structure for a rapidly growing company. I defined and supervised essential rituals such as dailies, technical refinements, planning, estimates, retrospectives, and product/technology weeklies. I standardized tools and development methods, including: conventions, commits patterns, automated tests, branches organizations and documentation. Furthermore, I developed a guide for roles, responsibilities, and career paths, focusing on technical skills, deliverables, human skills, leadership, and strategic impact.

    I contributed to the conception, planning, and execution of projects such as: Bank Credit Certificate (CCB), ERP integrations, Leverage System, Rediscount System, API integrations, Definition of a new Ledger structure, Improvements in customer platform experience and journey. Regarding technical enhancements, I assisted in the architecture and execution of: new authentication module, migration from monolithic to modular architecture, ETLs, creation of a design system, monitoring systems, SOLID implementation, front-end migration, AWS to GCP cloud migration;

    Successfully doubled the velocity of technology teams and fostered a strong tech culture.

    I mentored various areas of Bankme in leadership, organization, processes and OKRs.

    • Team Leadership
    • Strategic Planning
    • AWS
    • MongoDB
    • Process Improvement
    • PostgreSQL
    • Continuous Integration/Continuous Delivery (CI/CD)
    • Team Building
    • AWS Lambda
    • Hiring
    • NestJS
    • Career Counseling
    • Docker
    • AngularJS
    • Information Security
    • npm
    • MySQL
    • GitHub
    • Technology Team Culture
    • RabbitMQ
    • Amazon RDS
    • Express.js
    • Design Patterns
    • Next.js
    • CSS
    • Design Documentation
    • Node.js
    • Artificial Intelligence
    • Git
    • ETL (Extraction, Transformation, Loading)
    • Team Management
    • Amazon EC2
    • Solid Principles
    • Full Stack Development
    • Task Prioritization
    • HTML 5
    • React.js
    • Architecture
    • Google Cloud Platform (GCP)
    • JavaScript
    • Web Crawling
    • Personal Development Plan
    • Amazon Route 53
    • Usability
    • Metabase
    • Datadog

  • BANKME

    MAR 2023~MAI 2023 / HEAD OF PRODUCT

    I took over the leadership of the Product team during a critical phase when our processes were undefined and demand management was chaotic. The team faced a lack of clarity in task prioritization and visibility of deliveries.

    I implemented new processes for the product team to improve roadmap clarity, feature collection, prioritization, and visibility of completed deliveries. Additionally, I introduced Personal Development Plans (PDP) for each team member.

    • Team Leadership
    • Strategic Planning
    • MongoDB
    • Process Improvement
    • Team Building
    • Career Counseling
    • GitHub
    • Team Management
    • Design Patterns
    • Git
    • Team Management
    • Full Stack Development
    • Task Prioritization
    • Product Roadmap
    • Node.js
    • Personal Development Plan
    • Usability

  • PROVI

    MAI 2022~SEP 2022 / ENGINEER MANAGER

    I restructured existing processes by introducing essential concepts such as documentation, estimates, technical task detailing, incident investigations, and monitoring improvements. My focus was also on keeping the team happy and engaged, achieving this through 1:1 meetings that allowed me to identify the team’s strengths and weaknesses. This resulted in a more motivated and confident team.

    I contributed to the design, documentation, and migration of our systems to a monorepo, and also worked on various deliveries with the team using the MOB Programming technique. I was responsible for the development and implementation of a microservice that centralizes all external integrations, including communications via SMS, email, and WhatsApp, as well as integrations with partners (Billing System).

    • Team Leadership
    • AWS
    • MongoDB
    • Process Improvement
    • PostgreSQL
    • Continuous Integration/Continuous Delivery (CI/CD)
    • Team Building
    • Hiring
    • Career Counseling
    • Docker
    • npm
    • GitHub
    • Technology Team Culture
    • Express.js
    • Design Patterns
    • CSS
    • Node.js
    • Git
    • ETL (Extraction, Transformation, Loading)
    • Team Management
    • Solid Principles
    • Full Stack Development
    • Task Prioritization
    • HTML 5
    • React.js
    • Architecture
    • JavaScript
    • Node.js
    • Personal Development Plan
    • Usability

  • LUIZALABS

    2021~2022 / TECH LEAD

    As a Tech Lead in the MagaluPay tribe, I led multiple squads dedicated to enhancing and expanding fintech products. I led the MagaluPay team during Black Friday preparations, ensuring stress tests, infrastructure projection, and issue identification to reduce costs. I identified points for improvement in infrastructure resources that reduced costs by applying cluster resizing.

    I was responsible for being a technical reference, supporting the teams in designing technical solutions, building POCs, deployments, and handling incidents.

    I led the technical design and implementation of the MagaluPay Wallet.

    • Team Leadership
    • Strategic Planning
    • MongoDB
    • Process Improvement
    • Continuous Integration/Continuous Delivery (CI/CD)
    • Team Building
    • Career Counseling
    • Information Security
    • npm
    • GitHub
    • Technology Team Culture
    • RabbitMQ
    • Express.js
    • New Relic
    • Design Patterns
    • Next.js
    • CSS
    • Design Documentation
    • Node.js
    • Git
    • Team Management
    • Kong
    • Full Stack Development
    • Task Prioritization
    • HTML 5
    • Architecture
    • C4 Model
    • Google Cloud Platform (GCP)
    • JavaScript
    • Node.js
    • Personal Development Plan
    • Apigee
    • Usability

  • NEON

    2019~2021 / Back End Coordinator

    I technically led a team that created a digital account aimed at micro-entrepreneurs in Brazil. After our initial delivery, the product split into 10 new teams.

    I was responsible for planning and executing the integration of the MEI Fácil app (React Native) with Neon’s banking structure. To achieve this, we created an entire BFF structure to orchestrate calls to the existing microservices. On the MEI Fácil side, I structured and implemented services to facilitate an almost frictionless onboarding process, utilizing already existing information.

    This work resulted in the acquisition of 200,000 customers in the first year after launch.

    After the team division, I took on the technical leadership of the Activation and Onboarding teams.

    • Team Leadership
    • Bitbucket
    • Strategic Planning
    • Prometheus
    • AWS
    • MongoDB
    • Process Improvement
    • Continuous Integration/Continuous Delivery (CI/CD)
    • Team Building
    • NestJS
    • Career Counseling
    • React Native
    • npm
    • GitHub
    • Technology Team Culture
    • RabbitMQ
    • C#
    • Express.js
    • Design Patterns
    • CSS
    • Node.js
    • Graylog
    • Git
    • Team Management
    • Full Stack Development
    • Task Prioritization
    • HTML 5
    • React.js
    • Architecture
    • Kubernetes
    • JavaScript
    • Node.js
    • Personal Development Plan
    • Usability

  • MEI FÁCIL

    2018~2019 / Tech Lead and Back End Cordinator

    Since joining MEI Fácil from its inception, the focus has always been on innovation and making bureaucracy simpler for micro-entrepreneurs (MEIs) across Brazil.

    The initial concept of the MEI Fácil digital account was crucial in supporting our integration with Banco Neon. We began developing the entire product journey and integrating with external partners (Conductor).

    I was responsible for designing and implementing the backend structures using NodeJS, Express, and NestJS to provide customer data for the digital account.

    • Team Leadership
    • Strategic Planning
    • AWS
    • MongoDB
    • Process Improvement
    • Continuous Integration/Continuous Delivery (CI/CD)
    • Team Building
    • Hiring
    • NestJS
    • Career Counseling
    • npm
    • GitHub
    • Technology Team Culture
    • Express.js
    • Design Patterns
    • CSS
    • Node.js
    • Git
    • Team Management
    • Full Stack Development
    • Task Prioritization
    • HTML 5
    • React.js
    • Architecture
    • JavaScript
    • Node.js
    • Web Crawling
    • Personal Development Plan
    • Usability

  • UTFPR TEACHER

    2017~2019 / GRADUATION TEACHER

    At UTFPR, I taught core courses for the Technology in Systems Analysis and Development and Computer Engineering programs.

    Responsibilities: 📚 Preparing and delivering lectures 📝 Creating, administering, and grading exams 🎓 Conducting tutoring sessions 👩‍💼 Supervising internships 🌟 Guiding final projects

    Courses Taught: 💻 Web Programming: HTML, CSS, JS, ReactJS 📊 Data Structures: Arrays, Lists, Stacks, Queues, Hash Tables, Trees 🖥️ Desktop Programming: Visual programming concepts, interface development, component libraries, property and event control, data input/output handling 🔄 Integrator Project: Applying knowledge from various courses to develop an integrated computing system, including research methodology and final report presentation 📐 Algorithms: Basics, language evaluation criteria, implementation methods, language evolution, syntax and semantics, data types, control structures, subprograms, arrays, structures, pointers, object-oriented concepts 🛠️ Introduction to Software Engineering: System, software, and software engineering definitions, social and business context, software product and process concepts, software engineering knowledge areas, development methods, applications, and tools

    • Laravel
    • Student Assessment and Feedback
    • Teaching
    • PHP
    • Curriculum and Instruction Development
    • GitHub
    • Research Methodology and Communication
    • CSS
    • Git
    • Technical Proficiency
    • HTML 5
    • React.js
    • Project Supervision
    • Node.js
    • Usability

    2013~2013 / POSTGRADUATE TEACHER

    For the Postgraduate Java course, I taught Java with a focus on web development, covering HTML, CSS, JavaScript, Servlets, and JSP.

    • Student Assessment and Feedback
    • Teaching
    • GitHub
    • Vue.js
    • CSS
    • HTML 5
    • Java
    • JavaScript
    • Usability

    2008~2009 / GRADUATION TEACHER

    Responsibilities: 📚 Preparing and delivering lectures 📝 Creating, administering, and grading exams 🎓 Conducting tutoring sessions

    Courses Taught: 💼 Business Programming - Microsoft .NET with C# 🌐 Web Programming - HTML 5, CSS, Javascript 💻 Basic Informatics - Word, Excel, Powerpoint, Access 🗃️ Database Integrator Project - PostgreSQL

    • PostgreSQL
    • Microsoft Access
    • Teaching
    • GitHub
    • Microsoft PowerPoint
    • C#
    • CSS
    • Microsoft Excel
    • HTML 5
    • JavaScript
    • Microsoft Word
    • Usability

04Hobbies

05Awards

  • 14º APPMARKMIDIA - 2018

    CREATIVITY AWARD

    Second Place - Category: Website / Agency: Boyband / Customer: Tintas Kokar

  • UTFPR - 2007

    Award of the best undergraduate student.