José C. Paiva Logo
<JCPAIVA/>
SYSTEM.KERNEL :: v1.0.0 ONLINE

Hello, I'm José C. Paiva

<Solutions Architect & AI Specialist /> Engineering high-performance web platforms, AI/RAG solutions, automated assessment engines, and multi-tenant architectures based in Porto, Portugal.

Explore Work
> sudo list_projectsReady
Source Code
GitHub
LOADED_MODULES:TYPESCRIPTPYTHONJAVARUSTPHPZOHOAI & RAGMOODLEPOSTGRESQLDOCKER
portfolio.tsx
Status: Active
import { Person } from './universe';
// Initialize profile object
const Paiva = () => {
return (
<Person
name="José C. Paiva"
role="Solutions Architect & AI Specialist"
location="Porto, Portugal"
availability="Open to remote opportunities"
/>
);
};
# About.system

About José C. Paiva

// OPERATOR_PROFILE_LOGS

operator_spec.sys
Status: ONLINE
José C. Paiva Developer Avatar
OPERATORJOSÉ C. PAIVA
ROLESOLUTIONS ARCHITECT
QUALIFICATIONPhD in Computer Science
STATUSACTIVE
paiva@jcpaiva.dev:~$whoami

Full-stack engineer, AI specialist, and software architect with 10+ years of experience spanning R&D, educational technology, AI-enabled products, cloud integrations, and multi-tenant web platforms. PhD in Computer Science from the University of Porto, specializing in automated assessment of programming assignments, source-code semantics, feedback generation, and gamification.

Experienced in translating complex institutional and research requirements into production-grade systems: LMS integrations, learner portals, CMS platforms, automated assessment engines, gamification systems, and AI/RAG applications.

paiva@jcpaiva.dev:~$cat mission.txt

Bridging cutting-edge academic R&D with production software engineering to design scalable, intelligent, and human-centered digital platforms that empower learners, educators, and organizations worldwide.

// 2014+
10+
Years Exp.
// SHIPPED
20+
Shipped Projects
// PAPERS
35+
Research Papers
// LOCATION
Porto
Portugal, PT
Explore the complete profile
# Skills.json

Technical skills

// SYSTEM_CAPABILITIES_MANIFEST

languages.module
$ ls ./languages[9 Loaded]

#Languages

TypeScriptJavaScriptPythonJavaC#SQLBash/ShellC/C++HTML/CSS
ai_&_data_engineering.module
$ ls ./ai-data[7 Loaded]

#AI & Data Engineering

LLM IntegrationRAG PipelinesQdrant Vector DBSemantic Code AnalysisAutomated FeedbackPandasNumPy
full-stack_&_web.module
$ ls ./fullstack[10 Loaded]

#Full-Stack & Web

Next.jsNuxt.jsReactVue.jsNode.jsNestJSFlaskREST & GraphQL APIsTailwind CSSMoodle Plugins
databases_&_storage.module
$ ls ./databases[7 Loaded]

#Databases & Storage

PostgreSQLMySQLMS SQL ServerMongoDBRedisNeo4jSQLite
cloud_&_infrastructure.module
$ ls ./infrastructure[8 Loaded]

#Cloud & Infrastructure

DockerKubernetesAWS IntegrationsLinuxnginxCI/CDGitPerformance Testing
edtech_&_research.module
$ ls ./edtech-research[6 Loaded]

#EdTech & Research

Automated AssessmentLearning AnalyticsLMS IntegrationGamification ServicesBibliometric AnalysisSource-Code Graph Reps
See how these capabilities become services
git log --stat --oneline

Professional experience

// CAREER_HISTORY_TREE

SHOWING: 6 OF 15 POSITIONS
commit 3bb2954HEAD -> current

AI Specialist, Solutions Architect & Full-Stack Developer

Centro de Inovação Pedagógica, P.PORTOPorto, Portugal (Remote)Full-time

"Architects and delivers AI-powered educational products, institutional web platforms, learner portals, and Moodle plugins for P.PORTO and INOV-NORTE consortium."

  • Architected and delivered the HUB Digital platform supporting communities of practice, e-learning, gamification, and central CMS management across higher-education institutions.
  • Designed and built GamiBot, an AI-powered pedagogical agent integrated into Moodle combining conversational RAG, Qdrant vector database, and real-time gamification.
  • Developed the Academ_IA XP platform with responsive course catalogues, private learner dashboard, media viewing verification, attendance validation, and automated PDF certificates.
  • Built the CIP website and learner portal, PlurALL website, and supervised micro-portfolio and flashcards PWA products.
TypeScriptNext.jsNuxt.jsNode.jsPythonQdrantRAGMoodlePostgreSQLDocker
commit 426c86bHEAD -> current

CEO, Solutions Architect & Full-Stack Developer

Kriol.IORemoteExecutive / Consultancy

"Leads a software consultancy studio providing custom web applications, API design, cloud services, SaaS integrations, and technical advisory for clients worldwide."

  • Owns technical decision-making from discovery and architecture design through deployment, optimization, and ongoing maintenance.
  • Delivers custom full-stack web applications, REST/GraphQL APIs, multi-tenant database systems, and CMS integrations for international clientele.
  • Provides technical consultancy on cloud migration, DevOps pipelines, application performance auditing, and system security.
TypeScriptNext.jsNode.jsPythonAWSDockerPostgreSQLGraphQL
commit 61a3706HEAD -> current

Full-Stack Engineer / AI Specialist

ToptalRemoteFreelance

"Works with international client teams as a vetted full-stack engineer and AI specialist, delivering high-performance web applications and cloud integrations."

  • Combines hands-on development with architectural planning, codebase refactoring, automated testing, and performance optimization.
  • Integrates complex APIs, vector database search workflows, and real-time user features in collaboration with distributed engineering teams.
ReactNext.jsNode.jsPythonTypeScriptPostgreSQLDocker
commit 21e1b57

PhD Researcher in Computer Science

Faculty of Sciences, University of PortoPorto, PortugalDoctoral Research

"Completed PhD research titled 'Improving Feedback in the Automated Assessment of Programming Assignments Using Students' Past Solutions'."

  • Researched semantic graph representations of source code, AST parsing, program repair, and automatic feedback generation.
  • Authored 25+ peer-reviewed journal articles and conference papers in ACM TOCE, Electronics, Springer, and OASIcs.
  • Developed clustering algorithms for introductory programming submissions to deliver targeted repair feedback to students.
PythonJavaAST & Graph MiningAutomated FeedbackClusteringData Mining
commit 6df2b41

Research Assistant — FGPE

INESC TEC / CRACSPorto, PortugalResearch Contract

"Contributed to an Erasmus+ European project developing a web-based environment for gamified programming exercises."

  • Developed automatic evaluation components and gamification infrastructure microservices.
  • Participated in the development of the FGPE learning environment and authoring tools.
  • Published research papers on GEdIL, YAPExIL, and GraphQL gamification services.
JavaGraphQLGamificationTypeScriptREST APIsDocker
commit 4aee2ef

Research Assistant — FOUREYES-3

INESC TEC / CRACSPorto, PortugalResearch Contract

"Integrated diagram assessment, game-based assessment environments, and teacher analytics into the Enki learning platform."

  • Integrated diagrammatic evaluation, quiz engines, and resource recommendation modules into Enki.
  • Developed Asura, a game-based assessment environment for automated player-versus-player programming competitions in Mooshak.
  • Built teacher monitoring interfaces for real-time submission visualization and plagiarism detection.
JavaVue.jsMooshakAsura EngineWeb EditorsPlagiarism Detection
Browse the complete career timeline
$ ls -la ~/projects

Selected software projects

// SYSTEM_REPOSITORIES

SHOWING: 8 OF 12 REPOSITORIES

HUB Digital — INOV-NORTE

Production
// created: 2026-01e-learning platform

Multi-tenant learning academy, communities of practice, and central CMS platform for higher-education consortium.

Nuxt.jsTypeScriptNode.jsPostgreSQLMoodle API+3 more
Live Demo
View details

GamiBot AI Assistant

Active
// created: 2025-12ai assistant

AI-powered conversational pedagogical agent for Moodle combining RAG, Qdrant vector DB, and real-time gamification.

PythonQdrantRAGLLMMoodle Plugin+1 more
Live Demo
View details

FGPE — Gamified Programming Education

Production
// created: 2021-08e-learning system

International Erasmus+ ecosystem for gamified programming learning, featuring GraphQL Gamification Service, React PWA learning environment, and AuthorKit exercise builder.

TypeScriptReactNode.jsGraphQLNestJS+5 more
Live Demo
View details

Academia Ageing in Place — Quiz

Production
// created: 2025-05cross-platform app

Multi-platform, offline-first gamified quiz application (Tauri + React + Node.js) and admin dashboard promoting digital, financial, health, and domestic literacy for senior citizens.

TauriRustReactTypeScriptSQLite+7 more
// Private repo
View details

Academ_IA XP Platform

Production
// created: 2024-10web platform

Gamified learning platform with course catalogues, video watch tracking, automated PDF certificates, and agenda.

TypeScriptNuxt.jsNode.jsPostgreSQLTailwind CSS+1 more
Live Demo
View details

HandSpy Research Engine

Production
// created: 2023-06research engine

Psycho-physiological & linguistic research platform analyzing expressive writing markers and Google Drive workflows.

JavaAngular.jsPostgreSQLSpring BootGoogle Drive API+2 more
Live Demo
View details

Distribuir Sorrisos Website

Production
// created: 2025-08web platform

Official web platform for Distribuir Sorrisos non-profit association, managing social initiative showcases, volunteer registration workflows, and community engagement.

Next.jsTypeScriptTailwind CSSPostgreSQLCMS
Live Demo
View details

Mooshak 2 Assessment System

Active
// created: 2018assessment system

Next-generation web-based competitive programming evaluation platform co-developed with Prof. José Paulo Leal, featuring WebSockets, sandbox execution, and distributed scoring.

JavaGWTWebSocketsAutomated AssessmentSandboxing+1 more
CodeLive Demo
View details
Browse the complete project archive
$ ls -la ~/publications

Research publications

// RESEARCH_PUBLICATIONS_&_LOGS

SHOWING: 9 OF 37 PUBLICATIONS
Conference Paper

Bridging Generative AI and Gamification in Moodle: Design and Evaluation of GamiBot

OASIcs, Volume 145, ICPEC 2026

While Learning Management Systems (LMS) like Moodle are ubiquitous in higher education, they often lack dynamic, personalized academic support. We present GamiBot, an intelligent pedagogical agent natively integrated into Moodle to bridge this gap. GamiBot combines Large Language Model (LLM)…

GamificationEdTech+1
Artifact

GamiBot

Schloss Dagstuhl – Leibniz-Zentrum für Informatik

Presents GamiBot, an AI-powered pedagogical agent integrated into Moodle combining conversational RAG assistance, automated feedback, and native gamification mechanics.

Generative AILLM+4
Journal Article

Incremental Repair Feedback on Automated Assessment of Programming Assignments

Electronics

Automated assessment tools for programming assignments have become increasingly popular in computing education. These tools offer a cost-effective and highly available way to provide timely and consistent feedback to students. However, when evaluating a logically incorrect source code, there are…

Automated AssessmentGenerative AI+1
Journal Article

Clustering source code from automated assessment of programming assignments

International Journal of Data Science and Analytics

Abstract Clustering of source code is a technique that can help improve feedback in automated program assessment. Grouping code submissions that contain similar mistakes can, for instance, facilitate the identification of students’ difficulties to provide targeted feedback. Moreover, solutions with…

Automated AssessmentProgram Analysis
Journal Article

GATUGU: Six Perspectives of Evaluation of Gamified Systems

Information

As gamification spreads to new areas, new applications are being developed and the interest in evaluating gamified systems continues to grow. To date, however, no one has comprehensively approached this topic: multiple evaluation dimensions and measures have been proposed and applied without any…

Gamification
Journal Article

PROGpedia: Collection of source-code submitted to introductory programming assignments

Data in Brief

Learning how to program is a difficult task. To acquire the required skills, novice programmers must solve a broad range of programming activities, always supported with timely, rich, and accurate feedback. Automated assessment tools play a major role in fulfilling these needs, being a common…

Program Analysis
Browse every publication by year
$ ./contact.sh

Start a conversation

// ESTABLISH_COMMUNICATION_LINK

comm_link.cfg
Status: ONLINE
// Direct Endpoints
paiva@kriol.io
Porto, Portugal
// External Profiles
GitHubLinkedInORCIDToptal
contact_form.sh
privacy.config

Optional analytics

Google Analytics helps me understand aggregate portfolio usage. It will not load unless you accept, and advertising storage stays disabled. You can change this choice at any time.

Read the privacy and storage details