Raliel Dias
Raliel Dias

Senior Software Engineer

Actively looking · Member since 7 Nov 2026
Location
Centro, Brazil
Desired salary
Unspecified
Work preference
Remote Only
Experience level
Senior

About

Professional summary

I am a Senior Software Engineer and MERN Stack Developer with extensive experience building scalable, enterprise-level web applications and AI-powered products.

I specialize in full-stack development with JavaScript, TypeScript, React, Node.js, Express, Redux, and MongoDB. I translate business requirements into reliable, maintainable software solutions.

I have practical AI and machine learning experience, including developing computer vision models for skin cancer detection and large-scale object detection. My work includes TensorFlow, NumPy, Keras, YOLO, CNNs, RNNs, Transformers, and LLM-based integrations.

I focus on application performance, security, and user experience. I have improved frontend bundle performance, implemented JWT authentication and role-based access control, and built real-time dashboards and integrations.

I am experienced in mentoring junior developers, leading technical demonstrations, maintaining code-quality standards, and collaborating with partners and clients to solve complex technical and business challenges.

Skills

41 capabilities

Tech stack & tools

Working toolkit

Data Stores

Development

Languages & Frameworks

Experience

Career history

AI Engineer | Fullstack Developer Freelance

Developed and integrated a TensorFlow and NumPy-based AI model for a skin cancer detection platform, providing users with highly accurate cancer detection capabilities.

Built and maintained a customer-facing React, TypeScript, and Redux single-page application. Implemented code splitting and lazy loading, reducing the initial bundle size by 42% and improving average Time to Interactive by 1.8 seconds.

Implemented JWT-based authentication and role-based access control, improving session resilience and reducing account-related support tickets by 18%. Mentored three junior developers, led weekly technical demonstrations, and enforced code-quality standards through pull-request reviews and automated linting and Prettier rules.

AI Engineer Incena Digital

Developed an AI object-detection model capable of handling approximately 20,000 classes.

Built internal CRM and analytics dashboards using React and Redux with Node.js and Express APIs, delivering features that increased sales-team productivity by approximately 25% through reduced data-entry and reporting time.

Implemented MongoDB aggregation pipelines for real-time metrics dashboards, reducing data-processing time by 70%. Integrated Stripe payments and SendGrid transactional email, with idempotent webhook handling that reduced duplicate events by 99.9%.

Junior Web Developer GRECO

Collaborated with partners and clients to identify effective protocols, designs, and technical solutions for business problems.

Handled complex data modeling and performance-testing processes, and created user interfaces using development best practices and modern tools.

Developed an AI agent that automatically scraped data from Shopify projects and connected it to Google Sheets dashboards in real time.

Education

Learning history

Federal University of Paraná

Bachelor degree, Computer Science

Bachelor degree in Computer Science.

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