vitorcirqueira@gmail.com / https://www.linkedin.com/in/vitorlc
29 years / E-mail: vitorcirqueira@gmail.com
· Developed and maintained microservices for authentication and user profile, ensuring scalability and reliability across millions of access requests;
· Implemented event-driven architectures with AWS SQS and background workers, increasing system resilience and reducing latency in critical user access operations;
· Optimized application performance through Redis caching strategies, cutting redundant queries and accelerating profile-related response times;
· Improved observability and monitoring by integrating logging, metrics, and tracing, enabling faster detection, root cause analysis, and incident resolution;
· Partnered with cross-functional teams to elevate the user experience in login, session management, and profile customization, delivering secure yet seamless journeys for end users.
Skills: NestJS · PostgreSQL · Node.js · JavaScript · TypeScript · AWS SQS · Redis · Jest
· Led architectural design and implementation of distributed systems using NestJS, NodeJs, AWS Lambda, and PostgreSQL, supporting real·time financial tokenization platforms;
· Designed an event·driven architecture using background jobs integrated with RabbitMQ, AWS SQS, SNS, WebSocket and Webhooks to enable reliable, asynchronous message processing;
· Mentored 5+ junior developers via code reviews, pair programming, and product discussions;
· Led and co·developed a custom continuous delivery (CD) pipeline with a tailored GitFlow strategy, increasing deployment frequency by 300% — from twice a month to twice a week;
· Instituted testing practices with Jest and API contract validation, increasing release confidence;
· Contributed directly to the tokenization and trading of over R$280 million in assets, leveraging blockchain to ensure traceability and regulatory compliance of operations.
Skills: NestJS · PostgreSQL · WebSocket · Node.js · JavaScript · TypeScript · Serverless · AWS SQS · AWS SNS · RabbitMQ · Vue.js · Jest · Ruby on Rails
· Developed new features using AngularJS and Node.js, while also maintaining and supporting legacy Java systems that were crucial for daily operations;
· Integrated internal APIs and third·party services, and provided technical support during production incidents;
· Closely collaborated with the QA and product teams to ensure quick resolution and minimal downtime.
Skills: AngularJS · Node.js · Java · React.js · NestJS · PostgreSQL
· Engineered modular services with Django REST and Node.js, integrating complex APIs and financial platforms;
· Delivered frontend components in React.js using Hooks and Context API, boosting UI performance and code reuse;
· Built and optimized PostgreSQL schemas and indexes, improving query performance on key endpoints;
· Led feature delivery from design to deployment in agile sprints.
Skills: Python · Django REST Framework · React.js · PostgreSQL · WebSocket · Node.js · JavaScript · MicroServices · GraphQL · Serverless · AWS SQS · AWS SNS · AWS Lambda
· Built a custom Google Docs extension to streamline internal documentation processes using TypeScript and AppScript;
· Collaborated with stakeholders to align features with business KPIs.
Skills: TypeScript · Node.js · Appscript · Serverless · AWS Lambda
· Developed and maintained web and mobile applications for agribusiness;
· Led the Bluetooth integration with on·farm devices to enable real·time livestock tracking;
· Designed database schemas with MySQL and optimized backend performance using Sequelize.js;
· Mentored interns and contributed to the professional growth of junior team members.
Skills: JavaScript · Vue.js · React Native · Node.js · MySQL · Sequelize.js · WebSocket
Currently enrolled in a hands-on program focused on Software Architecture, System Design, and Design Patterns. Gaining practical experience with Microservices, Domain-Driven Design (DDD), and Clean Architecture. Also developing skills in DevOps, SRE, observability, containers, orchestration, and technical team leadership.
Focused on Agile, Design Thinking, decision-making, and mastering communication. Developed skills in applying innovation and creativity in real-world projects, along with personal leadership growth.
Capstone: OBDII-based mobile app for real-time vehicle diagnostics and fuel consumption tracking.