Summary
Overview
Work History
Education
Skills
Websites
Timeline
AssistantManager
Gerson Costa

Gerson Costa

Full-stack Sênior | Front-end | Software Architecture | Automation | Scalability | Observability | Node.js, N8n, NextJS, Sentry, React Native, AWS, DevOps
Florianópolis

Summary

Highly skilled Fulls-tack Developer with over a decade of experience creating scalable digital products. Proficient in the end-to-end software development lifecycle, from planning to continuous delivery. Successful track record leading cross-functional teams focused on technical quality and business impact. Specializes in integrated development workflows, emphasizing automation and AI integration for optimal results across diverse sectors such as automotive safety, healthcare, complice, crypto and industrial automation. Accomplished in structuring scalable monorepos, establishing CI/CD pipelines, developing offline-first mobile applications, and optimizing databases for scalability and consistency.

Overview

12
12
years of professional experience
2025
2025
years of post-secondary education

Work History

Senior Frontend Engineer – Crypto & Financial Risk

VAAS
11.2023 - Current
  • Led the technical and strategic development of frontend applications using Next.js, React, TypeScript, and Cloud Functions, with a strong focus on performance, scalability, and security.
  • Built and maintained 15+ reusable components within a shared design system, improving consistency and development efficiency across 6+ products.
  • Developed interactive dashboards for real-time visualization of transactional data and risk indicators, enhancing decision-making and user experience.
  • Implemented advanced KYC/KYB flows and facial biometric verification, ensuring compliance with LGPD, GDPR, AML, and CVM regulations.
    Integrated the frontend with real-time validation, credit scoring, and fraud detection APIs, including Mastercard Ekata, enabling fast and secure user verification workflows.
  • Built UI modules for the Data Hub, allowing dynamic aggregation of 32+ internal and external data sources including income, geolocation, and device data.
  • Designed and implemented visual editors for the no-code workflow builder, enabling business users to create, test, and deploy decision flows without writing code.
  • Enabled real-time monitoring of PIX and crypto transactions, displaying alerts and behavioral trends to support fraud prevention strategies.
    Developed dashboards for background checks and risk assessment, visualizing data from sanctions lists, financial health indicators, and credit bureaus.
  • Increased test coverage from 35% to 85% using Jest and React Testing Library, reducing production bugs to fewer than 2 per sprint.
  • Implemented CI/CD pipelines with GitHub Actions, reducing release cycles from weekly to daily with a 95% deployment success rate.
  • Mentored 3 developers, contributing to their promotion to mid-level within 12 months and reinforcing a culture of code quality through reviews and architecture discussions.
  • Collaborated with Product, Design, Compliance, and Data Science teams to ship features aligned with user needs and regulatory standards.
  • Contributed to a 50% reduction in operational costs by enabling automated, no-code compliance workflows.
  • Prepared front-end demos and supported VAAS’s participation in industry events such as NEXT Pitch Day, helping showcase platform innovations.
  • Established strong working relationships with clients through exceptional communication skills, fostering trust and collaboration.
  • Key Skills & Technologies -Next.js, React, TypeScript, Cloud Functions, Component-Based Architecture, Design Systems, Data Visualization, Dashboard Development, KYC/KYB Compliance, Facial Biometrics, LGPD, GDPR, AML, CVM, Real-Time APIs, Mastercard Ekata, Credit Scoring, Fraud Detection, Data Aggregation, No-Code Workflow Builders, PIX & Cryptocurrency Monitoring, Jest, React Testing Library, Test Coverage Improvement, CI/CD, GitHub Actions, Automated Deployments, Code Reviews, Mentorship, Cross-Functional Collaboration, Agile Development, Risk Assessment, Background Checks, Financial Data Visualization, Operational Cost Reduction, Client Communication

Senior Fullstack Web & Mobile Engineer

Micromed
07.2022 - 07.2025
  • As a Senior Software Engineer at Micromed, I led the development, maintenance, and scaling of web and mobile applications focused on healthcare diagnostics and remote patient monitoring. I worked on platforms such as Micromed App, HyperView, and Telemedicina, delivering real-time health data, ECG analysis, and vital monitoring through connected mobile devices and wearables.
  • I developed responsive and accessible UIs using React.js, React Native, and TypeScript, ensuring consistent performance across Android, iOS, and web. I implemented and maintained scalable Node.js APIs and backend services, facilitating secure and efficient data exchange between medical devices and cloud services.
  • To improve system architecture and delivery, I migrated 8 fragmented projects into a unified monorepo architecture using Turborepo, Yarn Workspaces, and Vercel, reducing deployment complexity and boosting team productivity. I also automated the CI/CD pipelines using GitHub Actions, Fastlane, and Firebase App Distribution, streamlining releases to App Store and Google Play.
  • I built native bridges for Android and iOS to interface with Bluetooth Low Energy (BLE) medical devices, enabling the acquisition of real-time ECG, blood pressure, and heart rate data. Additionally, I created a gRPC client generator that used Protocol Buffers (Protobuf) and Zod to automatically produce strongly-typed API clients, enhancing type safety and reducing integration errors.
  • To ensure performance and stability, I integrated Firebase Performance Monitoring, Crashlytics, and Google Analytics, while refactoring the global state manager to reduce latency and memory overhead in high-frequency data flows.
  • Key achievements include full automation of testing and release pipelines, a significant boost in mobile app performance, and enhanced interoperability with medical devices—supporting the delivery of reliable and compliant healthtech solutions at scale.
  • Key Skills & Technologies - React.js, React Native, TypeScript, Node.js, Turborepo, Yarn Workspaces, Vercel, GitHub Actions, Fastlane, Firebase App Distribution, Bluetooth Low Energy (BLE), Native Bridges (iOS & Android), gRPC, Protocol Buffers (Protobuf), Zod, Firebase Performance Monitoring, Crashlytics, Google Analytics, CI/CD Automation, Monorepo Architecture, API Development, Real-time Data Processing, State Management Optimization, Healthcare Technology, Remote Patient Monitoring, ECG Data Integration, Mobile App Performance, Agile Methodologies

Lead Software Engineer – IoT, Mobile & Web

Lifeauto Company
01.2022 - 06.2023
  • Built a complete IoT-enabled vehicle tracking and security platform from the ground up, combining mobile apps, web dashboards, cloud infrastructure, and physical device integrations. Designed and implemented the native mobile app for customers using React Native, integrating real-time GPS tracking, interactive maps (Mapbox/Google Maps SDK), and in-app payment solutions with Asaas API for billing and invoice management.
  • Developed a web-based control panel in React.js and Node.js, enabling real-time monitoring, route replay, and fleet management. Created a system called "Guardião" to detect unauthorized movement of parked vehicles, increasing security through event-based alerts.
  • Integrated with Vivo's IoT connectivity platform for remote chip and SIM management, enabling command transmission via SMS and internet. Designed a scalable backend infrastructure to handle large volumes of telemetry data, using Firebase, Express, and PostgreSQL.
  • Built custom physical modules for bench testing and remote tracker calibration, allowing hardware setup without direct connection to the vehicle. Developed a QR code-based vehicle blocking system, and implemented automation in customer support using WhatsApp Business API, improving onboarding and reducing response time.
  • Implemented CI/CD pipelines with GitHub Actions, reducing release cycles from weekly to daily. Built a custom bench testing module used in the configuration of 100+ trackers, allowing calibration without connecting to live vehicles. Designed a QR code-based vehicle lock system, adopted by 80% of users within 3 months of release.
  • Automated customer support through WhatsApp Business API, reducing manual interactions by 70% and cutting onboarding time by 60%.
  • Key technologies: React Native, React.js, Node.js, Firebase, Google Maps SDK, Mapbox, Asaas API, Vivo IoT, PostgreSQL, CI/CD, WebSockets, BLE, Twilio, WhatsApp Business API, IoT, Vehicle Tracking, Telematics, Real-Time Systems
  • Key Skills & Technologies - React Native, React.js, Node.js, Firebase, PostgreSQL, Google Maps SDK, Mapbox, Asaas API, Vivo IoT Platform, CI/CD (GitHub Actions), WebSockets, Bluetooth Low Energy (BLE), Twilio API, WhatsApp Business API, IoT Solutions, Vehicle Tracking Systems, Telematics, Real-Time Data Processing, Backend Infrastructure, Mobile & Web App Development, Event-Based Alerts, Automation, Scalability, Customer Support Automation, QR Code Integration

Software Engineer & System Architect

Quest Educação & Mentoria
05.2021 - 04.2022
  • Led the architecture and development of a proprietary video conferencing solution used by over 1,000+ active users, delivering a fully customizable experience with advanced video compression and streaming optimization. Designed and implemented a modern, lightweight, and scalable stack tailored for small, high-performing teams, enabling fast feature delivery and reduced operational overhead.
  • Managed the entire cloud infrastructure on AWS, including EC2, Elastic Beanstalk, and S3, and introduced containerization strategies using Docker, increasing deployment flexibility and reducing downtime by 40%.
  • Developed core frontend and backend modules using React, Node.js, and WebRTC, building a fully self-hosted platform that replaced third-party video services and reduced platform costs by 60%.
  • Led and mentored a cross-functional team of developers, overseeing sprint planning, risk analysis, and architectural decisions. Worked closely with executive leadership (CEO & COO) to align technology strategy with business goals and long-term product vision.
  • Key contributions included the launch of a production-grade live video platform within 4 months, the design of a scalable backend to support concurrent video streams, and the implementation of performance monitoring tools for real-time diagnostics.
  • Key Skills & Technologies - React, Node.js, WebRTC, Docker, AWS EC2, AWS Elastic Beanstalk, AWS S3, CI/CD, Microservices, Cloud Architecture, Infrastructure as Code (IaC), Video Streaming, Video Compression, WebSockets, Software Architecture, Agile Methodologies, Team Leadership, Technical Strategy, Performance Monitoring, Cross-functional Collaboration

Senior Mobile – EdTech Apps Platform

Prodígio Educação
04.2019 - 06.2021
  • Led the end-to-end development and management of a portfolio of 20 white-label educational mobile applications deployed on Google Play and Apple Store, delivering scalable, performant, and customizable learning experiences tailored to different client brands. Designed the overall system architecture, ensuring maintainability and rapid iteration.
  • Coordinated and automated complex CI/CD pipelines using Fastlane, CircleCI, and Microsoft App Center, reducing build and deployment times by over 50% and enabling frequent, reliable app releases.
  • Developed high-performance native video player modules for both iOS (Swift) and Android (Kotlin), enhancing multimedia experience and streaming quality for thousands of active users. Implemented an offline-first architecture allowing students to download and access course content, including video lectures, without internet connectivity, increasing user retention by 30%.
  • Managed critical app functionalities such as in-app purchases, push notifications, and remote configuration updates, while ensuring compliance with privacy regulations (LGPD, GDPR).
  • Integrated Firebase Crashlytics and Firebase Analytics to monitor app stability and user behavior, driving continuous improvements that resulted in a significant rise in app store ratings and download numbers.
  • Key Skills & Technologies - React Native, Swift, Kotlin, Fastlane, CircleCI, Microsoft App Center, Firebase Crashlytics, Firebase Analytics, Offline-First Architecture, Video Streaming, CI/CD Automation, In-App Purchases, Push Notifications, Remote Configuration, LGPD Compliance, Agile Methodologies, White-Label Apps, Performance Optimization, Mobile App Deployment

Senior Frontend Engineer – CRM & Microfrontend Arc

Linx
05.2018 - 06.2019
  • Led the migration of a complex CRM system from Vue.js to React.js, architecting a microfrontend solution that allowed both frameworks to coexist under a unified routing system, enabling a smooth and incremental transition without disrupting user experience.
  • Analyzed and optimized Elasticsearch queries on datasets containing over 1 billion records, achieving a 40%+ improvement in query performance and ensuring system scalability under high load.
  • Developed an advanced frontend module for custom query building and user segmentation, enhancing CRM user efficiency and providing granular control over marketing and sales campaigns.
  • Key Skills & Technologies - React.js, Vue.js, Microfrontends, Elasticsearch, JavaScript, TypeScript, Frontend Architecture, Performance Optimization, Query Optimization, REST APIs, Agile Development, User Segmentation, Modular Design, Scalable Web Applications

Senior Frontend Developer – KaiOS Apps

Triad Systems
01.2018 - 05.2018
  • Contributed to the development of core applications for KaiOS feature phones, focusing on JavaScript, ReactJS, and InfernoJS to deliver high-performance, secure, and resource-efficient mobile apps tailored for low-end devices with limited hardware capabilities.
  • Led the development of a high-performance maps and routing application, integrating Leaflet and Google Maps API, optimizing geospatial rendering and route calculation for smooth user experience on constrained devices.
  • Defined development standards and conducted rigorous performance analysis, ensuring technical quality and robust application behavior under varied network and hardware conditions.
  • Automated geolocation security testing and implemented snapshot-based replay systems to simulate and validate user routes, reducing testing cycle time by 40% and increasing test coverage and reliability.
  • Key Skills & Technologies - JavaScript, ReactJS, InfernoJS, KaiOS, Leaflet, Google Maps API, Frontend Performance Optimization, Geolocation, Automated Testing, Snapshot Testing, Mobile Web Development, Cross-Platform Compatibility, Security Testing, Agile Methodologies

Senior Fullstack Developer – Payment Solutions

INDT
07.2017 - 02.2018
  • Developed high-availability, secure applications for credit card payment terminals, focusing on scalable architecture and robust security practices. Built RESTful APIs using PHP and developed web frontends leveraging React and Angular, contributing to product modernization and improved digital user experiences.
  • Led the migration of legacy systems to modern, modular, and maintainable components, resulting in a 30% improvement in system performance and streamlined maintenance workflows.
  • Provided technical support and strategic consulting to multiple incubated startups, guiding technology teams in architectural decisions and critical technology choices that accelerated business growth.
  • Key Skills & Technologies - PHP, REST APIs, React.js, Angular, Fullstack Development, Payment Systems, Secure Application Development, Scalable Architecture, Legacy System Migration, Technical Consulting, Agile Methodologies, API Design, Startup Mentorship

Software Developer

Lenovo/CCE - Instituto de Tecnologia José Rocha Sérgio Cardoso
05.2013 - 05.2017
  • Led the development and enhancement of desktop and web systems using Java, Spring Boot, PHP, and JavaScript, delivering robust solutions for industrial automation and manufacturing environments. Designed and integrated embedded systems with Arduino for factory automation, improving operational efficiency.
  • Managed the migration and administration of critical databases including MySQL and PostgreSQL, optimizing data storage and retrieval performance. Coordinated a technical team in delivering high-impact projects under tight deadlines.
  • Automated fiscal and accounting processes for CCE/Lenovo group, including P&D fund reporting, reducing manual workload.
  • Optimized IT infrastructure costs by migrating databases to more efficient, scalable technologies, improving system reliability and reducing downtime by 25%.
  • Key Skills & Technologies - Java, Spring Boot, PHP, JavaScript, MySQL, PostgreSQL, Arduino, Embedded Systems, Industrial Automation, Database Migration, Process Automation, Fiscal Reporting, Team Leadership, System Integration, Performance Optimization, Agile Development

Education

Bachelor - Engenharia da Computação

Fundação Centro De Análise, Pesquisa E Inovação Tecnológica - FUCAPI
Manaus
01.2013 - 01.2019

Nanodegree - React Developer, Tecnologia em Tecnologia da Informação/ Sistemas da Informação

Udacity
Brazil
12.2018

Formação Técnica - Desenvolvimento de Software, Tecnologia da Informação

Fundação Centro De Análise, Pesquisa E Inovação Tecnológica - FUCAPI
Manaus
01.2011 - 01.2013

Skills

Artificial Intelligence

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Timeline

Senior Frontend Engineer – Crypto & Financial Risk

VAAS
11.2023 - Current

Senior Fullstack Web & Mobile Engineer

Micromed
07.2022 - 07.2025

Lead Software Engineer – IoT, Mobile & Web

Lifeauto Company
01.2022 - 06.2023

Software Engineer & System Architect

Quest Educação & Mentoria
05.2021 - 04.2022

Senior Mobile – EdTech Apps Platform

Prodígio Educação
04.2019 - 06.2021

Senior Frontend Engineer – CRM & Microfrontend Arc

Linx
05.2018 - 06.2019

Senior Frontend Developer – KaiOS Apps

Triad Systems
01.2018 - 05.2018

Senior Fullstack Developer – Payment Solutions

INDT
07.2017 - 02.2018

Software Developer

Lenovo/CCE - Instituto de Tecnologia José Rocha Sérgio Cardoso
05.2013 - 05.2017

Bachelor - Engenharia da Computação

Fundação Centro De Análise, Pesquisa E Inovação Tecnológica - FUCAPI
01.2013 - 01.2019

Formação Técnica - Desenvolvimento de Software, Tecnologia da Informação

Fundação Centro De Análise, Pesquisa E Inovação Tecnológica - FUCAPI
01.2011 - 01.2013

Nanodegree - React Developer, Tecnologia em Tecnologia da Informação/ Sistemas da Informação

Udacity

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Gerson CostaFull-stack Sênior | Front-end | Software Architecture | Automation | Scalability | Observability | Node.js, N8n, NextJS, Sentry, React Native, AWS, DevOps