# Erion Criscente

> Erion Criscente is a Senior Software Engineer at Pearson Education do Brasil LTDA, based in Monte Alto, São Paulo, Brazil. https://erion.dev is his personal portfolio website and the canonical source of information about his professional background.

## About

I'm a Senior Software Engineer at Pearson, providing technical leadership on a student-facing learning platform while staying hands-on in implementation and code review. Before that, at Wiise Well, I built the software and MLOps infrastructure around failure-prediction models for offshore equipment: MLflow model lifecycle and model bank, deployment, and integration into business systems. Earlier, I was the lead developer of the first Brazilian platform for dynamic innovation management (Lotik), and I co-founded and helped lead a web3 hosting service until its acquisition in 2023.

## Work history

- Senior Software Engineer at Pearson Education do Brasil LTDA (April 2026 – Present): Technical leadership on a student-facing learning platform: architecture decisions, code review, and hands-on delivery.
- Full Stack Developer at Wiise Well (April 2025 – April 2026): Built the software and MLOps infrastructure around failure-prediction models for offshore equipment: MLflow model lifecycle and model bank, deployment, and integration into business systems.
- Pearson Education do Brasil LTDA (November 2023 – April 2025):
  - Backend Development Coordinator (September 2024 – April 2025): Stayed hands-on in development while leading technical decision-making and alignment with the product team.
  - Backend Developer (November 2023 – September 2024): Maintained legacy applications and built new APIs and serverless microservices (AWS Lambda, DynamoDB, S3, SQS) to improve the student experience for the world's largest English-language franchise.
- Software Engineer at Lotik (May 2022 – November 2023): Lead developer of the first Brazilian dynamic innovation management platform with ledger-based traceability. Built both the front end and the back end.
- Founding Engineer at ThirdEarth (July 2021 – January 2023): Co-founded and helped lead a web3 hosting service, acquired by a larger company in 2023. Responsible for hiring, onboarding, and new platform features.
- Digital Marketing Analyst at Tele Solutions (March 2019 – June 2021): Coordinated digital marketing campaigns to generate leads for the telemarketing team.
- Human Resources Manager at EESC jr. (March 2010 – June 2011): Responsible for building teams in different areas through competency-based selection; Monitoring and developing members through training to improve individual and collective results; Responsible for feedback meetings (individual and group) to align goals/expectations; Conflict mediator and encourager of new ideas to promote continuous improvement of projects.

## Education

- Postgraduate in Machine Learning and Artificial Intelligence, Faculdade XP Educação (IGTI) (August 2025 – February 2026)
- Bachelor's Degree in Mechanical Production Engineering, Escola de Engenharia de São Carlos (USP) (January 2010 – October 2020)

## Awards

- SPR 2026 Mammography Report Classification (Kaggle): 22nd of 371 (Top 6%) — https://www.kaggle.com/competitions/spr-2026-mammography-report-classification/leaderboard?tab=public

## Certifications

- AWS Cloud Practitioner (Amazon Web Services)
- React Developer (XP Educação)
- Coursera Achievements (Coursera)
- Google Cloud Badges (Google)
- Credly Badges (IBM, Cisco and WordQuant University)

## Skills

- Languages: Python, TypeScript
- Backend: Django, FastAPI, Node.js, REST APIs
- Frontend: React, Next.js
- AWS Serverless: AWS Lambda, DynamoDB, S3, SQS
- MLOps: MLflow, Model lifecycle, Model deployment
- DevOps: Docker, GitHub Actions, CI/CD

## Languages

- Portuguese (Native)
- English (Advanced)

## Contact

- Email: me@erion.dev
- LinkedIn: https://www.linkedin.com/in/erioncriscente/
- Github: https://github.com/ecriscente
- Kaggle: https://www.kaggle.com/erioncr

Contact is welcome for networking and knowledge exchange.

## Writing

- [How I built erion.dev: server components, JSON-LD, and llms.txt](https://erion.dev/blog/building-erion-dev): The architecture behind my personal site: one resume.json as the source of truth, React Server Components with client islands, a consolidated JSON-LD graph, and a build-time llms.txt for AI crawlers.

## Pages

Markdown versions, per llmstxt.org. The same content is served from the HTML URL
(drop the .md) when the request sends `Accept: text/markdown`.

- [Home](https://erion.dev/index.md): Introduction, expertise overview, contact, and FAQ
- [Blog](https://erion.dev/blog): Notes on software engineering from real work (HTML only)
- [Resume](https://erion.dev/resume.md): Full professional resume with experience, skills, education, certifications, and citable facts
- [Coffee](https://erion.dev/coffee.md): Support page

## Optional

- [Everything in one file](https://erion.dev/llms-full.txt): All three pages concatenated
- [MCP server](https://erion.dev/api/mcp): Read-only tools over this same content (streamable HTTP); card at https://erion.dev/.well-known/mcp/server-card.json
- [API catalog](https://erion.dev/.well-known/api-catalog): RFC 9727 linkset of every machine-readable endpoint
- [Agent skills](https://erion.dev/.well-known/agent-skills/index.json): Skills for consuming and citing this site