Paulo Henrique Cappa Messias Email & Phone Number

Mauá, Sp, Br

Miami, Florida, United States

Linguado is a free mobile app that lets you instantly connect with native speakers of your desired language. With the aim of making communication easier and promoting language learning, Linguado offers a dynamic and accessible platform for cultural and linguistic exchange.𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:• Led a dedicated team in the development of a new version of the Linguado app, focusing on leveraging React Native for enhanced performance and user experience.• Oversaw the development of key features such as the onboarding process, social login integration, maps, and real-time chat, ensuring seamless functionality and user engagement.• Utilized Firebase for authentication and data storage, integrating social login to enhance user accessibility and convenience.• Incorporated Google Ads system for monetization, optimizing ad placements and effectiveness to maximize revenue generation.• Utilized cutting-edge technologies including React Native, Expo, and Firebase to develop and deploy the new version of the app.• Collaborated with stakeholders to identify user needs and preferences, ensuring that new features and improvements align with Linguado's mission.𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀:• Successfully developed and optimized the onboarding process, resulting in smoother user engagement and increased retention rates.• Implemented maps and location services, facilitating real-time connections between users and enhancing the app's functionality.• Enhanced the effectiveness of the Google Ads system by 30% compared to the previous version, contributing to increased revenue and platform growth.• Led the implementation of subscription services, providing users with additional features and improving overall satisfaction.𝗦𝗸𝗶𝗹𝗹𝘀: React Native | Expo | EAS (Expo Application Services) | Firebase | Google Ads | Google Maps | Typescript | OAuth | Zustand | React Query | TanStack Query | Caching | CI/CD | Submissions to Play Store and Apple Store.

Miami, Florida, United States

As a freelancer, I was responsible for putting together the entire app setup, from folder structure to discussions with the CTO and CEO to decide on how to proceed with app development. Additionally, I offered suggestions for improvements and features to enhance the app.

São Paulo, Brazil

At Certsys, a respected technology company, I played an important role in developing and integrating solutions for prominent clients, including Via Varejo, now known as Grupo Casas Bahia. As part of the Certsys team, I worked closely with Via Varejo to provide customized and innovative solutions that drove business success and efficiency.𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:• Focused efforts on enhancing integration capabilities and development agility by spearheading the creation of low-code integrations and applications utilizing advanced tools like IBM Integration Bus and IBM App Connect Enterprise.• Collaborated closely with cross-functional teams to understand client requirements and translate them into effective technological solutions.• Led the development and implementation of custom APIs, ensuring compatibility and seamless integration with external systems and services.• Provided technical expertise and guidance to internal teams, contributing to the continuous improvement of development processes and methodologies.𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀:• I played a crucial role in developing and integrating solutions for major clients like Via Varejo, now Grupo Casas Bahia, during my time at Certsys.• Working closely with Via Varejo, I helped deliver tailored and innovative solutions that boosted their business efficiency and success.• My focus at Certsys was on enhancing integration and development speed by creating low-code integrations and applications using tools like IBM Integration Bus and IBM App Connect Enterprise.• I also built custom APIs to simplify integration with external systems, making processes smoother and more efficient.• One of my significant achievements was creating a custom user interface library, which not only boosted developer productivity but also encouraged code reuse, saving time and resources.𝗦𝗸𝗶𝗹𝗹𝘀:IBM Integration Bus, IBM App Connect Enterprise, IBM MQ, Java, Rest APIs, SQL, JDBC

São Paulo, Brasil

Semantix, previously known as LinkAPI, is a company whose goal is to transform businesses into a data-driven model, generating more value, intelligence, and efficiency, impacting billions of lives with data.𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀 𝗮𝗻𝗱 𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀:• I played a big part in helping Semantix transition from LinkAPI to a data-focused company, aiming to improve businesses worldwide.• My main job was developing simple tools and connecting them with client systems, which made it easier for businesses to use data effectively.• Using Node.js and TypeScript, I helped create smart solutions that made it easier for businesses to understand and use their data.• I also worked on making our integration and automation tools better, so businesses could transform digitally and see real results.𝗦𝗸𝗶𝗹𝗹𝘀:Node.js | Typescript | Javascript

São Paulo, Brasil

Waving is an early-stage gamified social network where each user interaction is rewarded with coins (WavingCoins), which can be exchanged for new features within the app. The platform aims to encourage user engagement through gamification elements, creating an interactive and rewarding social experience.𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:• Developed backend infrastructure, administrative dashboards, and mobile applications.• Supervised the project lifecycle from inception to completion, ensuring adherence to deadlines and quality standards.• Provided technical guidance and mentorship to a team of 10 developers, fostering a culture of continuous improvement.• Conducted regular code reviews and applied best practices to uphold code quality and scalability.• Managed project resources and budgets, optimizing allocation for maximum efficiency and cost-effectiveness.𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀:• Successfully led the development of backend, frontend, and mobile applications, ensuring smooth integration and functionality.• Ensured effective deployment and management of AWS EC2 instances, load balancers, IAM roles, SNS, and SQS for strong infrastructure.• Implemented efficient caching methods and database optimizations, resulting in a 40% enhancement in platform performance.• Initiated user acquisition strategies, leading to a 50% rise in user base, totaling over 10,000 users, with a 30% increase in daily active users.• Collaborated with diverse teams to introduce 10 new features and improvements, based on user feedback.𝗦𝗸𝗶𝗹𝗹𝘀:Node.js | React.js | React Native | Typescript | Lambda | AWS | AWS EC2 | SQS | SNS | Redis | Docker | Kubernetes | Terraform | NoSQL | MongoDB | Expo | EAS (Expo Application Services) | CI/CD | Google Ads | Google Maps | Submissions to Play Store and Apple Store.

São Paulo, Brasil

Gen Shop is a network of shopping malls dedicated to offering a wide range of services and benefits, fostering connections between buyers and sellers for mutual gain.𝗥𝗲𝘀𝗽𝗼𝗻𝘀𝗶𝗯𝗶𝗹𝗶𝘁𝗶𝗲𝘀:• Collaborated on dashboard development for tenants and administrators, focusing on specific functions according to user access levels.• Oversaw backend functions for tenants and administrators, ensuring seamless integration and operation by implementing various business rules.• Actively participated in developing mobile features, especially the couponing system, to boost customer engagement and tenant foot traffic.• Used Node.js for backend and React.js for frontend development, ensuring a robust and user-friendly interface.• Employed BootStrap for UI enhancement and React Native for efficient mobile app development, ensuring a consistent user experience.• Managed data storage using PostgreSQL and MongoDB, ensuring optimal performance and scalability for Gen Shop's growing network of shopping malls.𝗔𝗰𝗵𝗶𝗲𝘃𝗲𝗺𝗲𝗻𝘁𝘀: • Contributed significantly to developing tailored dashboards for tenants and administrators, improving user experience and efficiency.• Managed backend functions, implementing complex business rules to ensure smooth operations for different user access levels.• Played a key role in creating a mobile couponing system, making it easier for customers to redeem discounts and increasing foot traffic to Gen Shop tenants.𝗦𝗸𝗶𝗹𝗹𝘀:Node.js | React.js | React Native | Typescript | BootStrap | SQL | PostgreSQL | NoSQL | MongoDB | Redis

São Paulo, Brazil

GR5 is a legal software company that specializes in providing innovative solutions for the legal industry.As a Junior member of the team at GR5, I continued to contribute to the development of the platform, focusing on capturing procedural progress and subpoenas through Web Scraping using Node.js. My active participation in the platform migration during my internship provided me with valuable experience, and upon being promoted to the Junior position, I leveraged my expertise in Node.js to deliver effective solutions. Additionally, the company recognized my proficiency in Node.js and entrusted me with the responsibility of conducting internal workshops on efficient Node.js usage within the company’s software.In terms of technologies, I utilized Node.js for back-end development, leveraging its scalability and efficiency. Web Scraping tasks were carried out using Node.js, allowing for seamless integration with the existing platform. Additionally, I worked with MySQL database to store captured data securely and efficiently. My experience with these technologies enabled me to contribute effectively to the development and enhancement of GR5’s software solutions.

São Paulo, Brazil

During my internship at GR5, a legal software company, I suggested and participated in the transition from PHP to Node.js programming language. This change was driven by my increasing familiarity with Node.js, as well as the additional complexity that employees faced when maintaining PHP code. Additionally, I was already involved in Web Scraping activities to capture procedural progress and subpoenas, which provided me with a solid foundation to contribute effectively to the platform migration. My involvement in this process was a valuable learning opportunity and significantly contributed to improving platform efficiency and maintenance. The company agreed to migrate to Node.js, resulting in significant productivity and profitability improvements. Tasks were completed more quickly, and the increase in efficiency led to higher profits for the company.