Open to opportunities

Maradona Morais

@maradonamorais

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Software engineer building scalable backend services and AI-driven user experiences.

Brazil

Message

What I'm looking for

I’m looking to build scalable, data-intensive products—combining backend systems, responsive dashboards, and practical AI/IoT—while collaborating closely with product design and mentoring teams.

I build data-intensive backend services in an IoT context, deliver end-user dashboards, and enhance frontend architecture. I also develop recommendation AI models (Learn to Rank) and run hands-on AI proof-of-concepts, with a leadership mindset through mentoring and collaboration with product design.

Across roles, I’ve shipped full end-to-end features and scalable systems—building microservices and an LMS supporting 30k+ students with DDD and unit testing. I’m experienced with modern engineering practices, including monitoring and CI/CD (Grafana, Kibana, Jenkins, Kubernetes), and with a broad stack spanning TypeScript/React/Next, Kotlin/Spring, Python, Kafka/Flink, and AWS.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

Cobli

Sep 2024 - Present (1 year 10 months)

Built data-intensive backend services for an IoT context and developed end-user dashboards, improving frontend architecture. Created recommendation AI models (Learn to Rank) and ran AI proof-of-concepts using Kotlin, Spring, Python, Flink, and Kafka.

Dashboards Recommendation Systems Learning To Rank Kotlin Spring Python Flink Kafka TypeScript React Next.js PostgreSQL NumPy PyTorch AWS Java Mentoring

Full-stack Software Engineer

Descomplica Faculdade Digital

Sep 2021 - Sep 2024 (3 years)

Built scalable microservices and an LMS supporting 30k+ students, focusing on DDD and unit testing with loosely coupled services. Developed responsive front-end features and led AI-in-education experiments and monitoring/CI-CD practices.

Microservices DDD Unit Testing NestJS TypeScript AWS React Next.js Redux Vue.Js OpenAI Gemini Anthropic Grafana Kibana Jenkins Kubernetes CI CD Monitoring

Full-stack Software Engineer

Pitang Agile I.T.

Feb 2021 - Aug 2021 (6 months)

Consulted on new product development for SKY, working with AI, chatbots, and IoT technologies. Architected services on AWS and delivered operational tooling, including an OCR-based system to validate payment receipts.

Consulting & AI Chatbot IoT Dialogflow Alexa Google Home AWS Lambda CloudFormation Amazon S3 Operational Tools

Mobile Developer

Prefeitura Municipal do Natal

Jun 2018 - Jan 2021 (2 years 7 months)

Designed and built the Directa app to streamline property tax collection and related administrative workflows. Implemented backend support procedures using MSSQL.

React Native Mobile App Development MSSQL

Intern Developer

CCSA / UFRN

Mar 2016 - Aug 2018 (2 years 5 months)

Built the Sigeva academic conference platform from scratch, including paper submission, review, and payment workflows. Implemented the platform using React, Express, MongoDB, and on-premise CentOS servers.

React Express MongoDB CentOS Web Development Academic Conference Platforms Conference Submissions

Education

Degrees, certifications, and relevant coursework

Descomplica Faculdade Digital

Full-stack Software Engineer, Full-stack Software Engineering

2021 - 2024

Completed a full-stack software engineering program, building microservices and an LMS supporting 30k+ students, and developing responsive front-end interfaces with React (Next/Redux) and Vue.js.

IMD / UFRN

Bachelor of Science in Information Technology, Information Technology

2016 - 2020

Earned a Bachelor of Science in Information Technology from IMD/UFRN from 2016 to 2020.

IFRN

Computer Technician, Computer Technician

2012 - 2015

Completed a Computer Technician program at IFRN, with hands-on work including AI-in-Education experiments such as AI-assisted assessments and lesson summarization using LLMs.