Background
Diogo Antunes
Diogo Antunes
AI Scientist & Entrepreneur

Diogo Antunes

AI Scientist & Entrepreneur

Specialized in Machine Learning and Deep Learning with expertise in transformer architectures, reinforcement learning, and enterprise AI systems. Building the future of intelligent software at the intersection of research and practical applications.

Lisbon
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Diogo Antunes - AI Engineer & Entrepreneur - Diogo Antunes, AI Scientist and CEO of Vaisys Inc.
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Vision

Pioneering Value-Driven AI Systems

Vaisys Inc. Logo
At 23, I'm redesigning artificial intelligence to be autonomous, safe, and value-aligned. Through Vaisys Inc., we're building the next generation of AI that moves beyond conversation to meaningful action—always with humans in control.
The Value-Driven Approach

As an AI Scientist and entrepreneur, I believe artificial intelligence should serve humanity with clear values: transparency, collaboration, and responsible innovation. My work focuses on moving beyond the limitations of current language models to create systems that can autonomously execute complex tasks while maintaining human oversight.

Through deep expertise in transformer architectures, reinforcement learning, and advanced optimization techniques, I'm building AI systems that understand not just what to do, but why it matters. This perspective drives innovation that creates impactful, trustworthy technology.

My vision extends beyond technical excellence—I'm an entrepreneur who sees AI as a tool for positive societal transformation. Every system I design prioritizes safety, value-alignment, and the principle that AI should amplify human capability, not replace human judgment.

Language → Agentic Action Model

Moving AI beyond conversation to safe, autonomous execution with humans in the decision loop.

Value-Driven Framework

Transparency, collaboration, and responsible innovation guide every AI system we build.

Enterprise-Grade Impact

Scaling businesses faster while ensuring innovators stay in control and society shares the rewards.

Principled Guardrails

Pairing frontier research with robust safety measures for trustworthy AI deployment.

“I'm not just building AI systems—I'm reimagining how artificial intelligence can serve humanity with clear values, autonomous capability, and unwavering commitment to keeping humans in control. The future of AI is value-driven, and that future starts today.”

— Diogo Antunes, Founder & CEO of Vaisys Inc.

Research & Publications

Advancing AI research through innovative methodologies, from published work to cutting-edge private research driving the future of value-aligned AI systems

Academic Thesis

Published
Scan Optimization with AI

Bachelor's Thesis • Instituto Politécnico do Cávado e do AveJuly 2024

End-to-end machine learning implementation covering data engineering, model training, and production deployment. Applies Longformer architecture for sequence classification with custom tokenization for hierarchical data structures. The work addresses the complete ML pipeline from data preprocessing through optimized inference, demonstrating practical approaches to structural pattern recognition tasks.

Longformer
Sequence Classification
Project Structure Analysis
Tokenization Engineering
End-to-End Training
July 2024

Internal Research & Development

Internal Research
Language → Agentic Action Models (LAM): Beyond Conversational AI

Vaisys Internal Research • Proprietary2025

Proprietary research into next-generation AI systems that move beyond language models to autonomous action execution. This foundational work explores novel architectures for safe, value-aligned AI agents capable of complex reasoning and decision-making in enterprise environments. Includes breakthrough techniques in human-AI collaboration and autonomous task decomposition.

LAM
Autonomous AI
Value Alignment
Enterprise Systems
Core research driving Vaisys's value-driven AI platform development.
2025
Proprietary
Internal Research
Constitutional AI for Enterprise Safety Guardrails

Vaisys Internal Research • Proprietary2025

Developing robust safety frameworks for autonomous AI systems in enterprise environments. This research establishes constitutional principles for AI behavior, creating fail-safe mechanisms and ethical decision boundaries for agents operating in business-critical contexts. Includes novel approaches to AI transparency and explainability.

Constitutional AI
AI Safety
Enterprise Security
Explainable AI
Foundation for enterprise-grade AI safety and compliance systems.
2025
Proprietary

Technical Expertise

Specialized in cutting-edge AI technologies and production-ready machine learning systems

AI & Machine Learning

Expert in state-of-the-art AI technologies with focus on transformer architectures, reinforcement learning, and advanced model optimization techniques.

Transformers
Reinforcement Learning
RLHF
RLAIF
Model Distillation
MoE (Mixture of Experts)
Deep Learning
Neural Architecture Search
Advanced AI Techniques

Specialized in cutting-edge AI methodologies including human preference learning, multi-modal systems, and scalable model architectures.

RLVR
Constitutional AI
Few-Shot Learning
Multi-Modal AI
Retrieval-Augmented Generation
Knowledge Distillation
Parameter-Efficient Fine-tuning
Prompt Engineering
Data & Validation

Advanced expertise in data validation, quality assurance, and building robust data pipelines for AI systems at scale.

Data Validation
Data Quality Assurance
Synthetic Data Generation
Active Learning
Distributed Training
Model Evaluation
A/B Testing
Statistical Analysis
Production AI Systems

End-to-end AI system development from research to production deployment with emphasis on scalability and reliability.

MLOps
Model Serving
Quantization
Optimization
Distributed Computing
Real-time Inference
Model Monitoring
System Architecture

Experience

Building AI systems from research to production at scale

Vaisys Logo

Vaisys

Lisbon, Portugal • Geographically independent

2 yrs 6 mos
CEO, Founder

Full-time

Mar 2025 - Present · 4 mos

Established Vaisys with a vision to create AI that genuinely benefits society, prioritizes ethical practices, privacy, and—most importantly—builds solutions with a purpose over mere reasoning or technical prowess.

Strategic Planning
Investor Relations
Ethical AI
Company Leadership
Principal Engineer

Full-time

Oct 2024 - Present · 9 mos

Developing and refining solutions, reinforcing Vaisys's mission to deliver tangible, value-driven AI systems under a trustworthy and private platform.

Engineering Leadership
System Architecture
Value-driven AI
Privacy-first
Artificial Intelligence Scientist

Full-time

Jan 2023 - Present · 2 yrs 6 mos

Researching specialized transformer neural networks designed for unique use cases. Managing datasets of over 50 billion tokens for 2 billion parameter models.

Transformer Research
50B Token Datasets
2B Parameter Models
AI Agents
DefensePoint Logo

DefensePoint

Lisbon, Portugal • Remote

8 mos
AI Tech Lead Consultant

Contract

May 2025 - Present · 2 mos

Leading AI technology initiatives as a specialized consultant, focusing on advanced machine learning solutions for security-critical applications.

AI Strategy
Technical Leadership
Security AI
AI Tech Lead

Full-time

Nov 2024 - May 2025 · 7 mos

Led AI technology development initiatives, designing advanced machine learning solutions for Identity and Access Management systems.

IAM Systems
Threat Detection
Team Leadership
Checkmarx Logo

Checkmarx

Braga, Portugal • Hybrid

8 mos
Software, Machine Learning Engineer

Full-time

Jul 2024 - Oct 2024 · 4 mos

Solely responsible for finetuning state-of-the-art open-source autoregressive models for internal use, incorporating proprietary data using QLoRa methods.

QLoRa Fine-tuning
Autoregressive Models
Performance Optimization
Software, Machine Learning Engineer

Internship

Mar 2024 - Jun 2024 · 4 mos

Implemented transformers based approach for sequence classification. Involved in training models from scratch and engineering tokenization process using Longformer architecture.

Transformer Architecture
Longformer
Sequence Classification
Infrastructure

Projects

Open-source contributions and AI-powered applications

Housify AI Platform
AI Platform

Comprehensive generative AI system with distributed inference capabilities for multiple AI models including LLava, Stable Diffusion, and Pix2Pix.

Tech Stack
FastAPI
JWT Auth
Android
Distributed AI
PostgreSQL
Redis
Nginx
View Repository
TuxTech E-commerce
Web Application

Full-featured e-commerce platform built with Django, featuring user management, payment processing, and inventory systems.

Tech Stack
Django
PostgreSQL
Payment Gateway
Auth Systems
Responsive UI
View Repository
Computer Vision Traffic Detection
Computer Vision

Real-time traffic signal detection system using OpenCV and C++, implementing advanced image processing algorithms.

Tech Stack
OpenCV
C++
Real-time Detection
Image Processing
Computer Vision
View Repository

Education & Certifications

Continuous learning through formal education and professional certifications

Bachelor of Science in Software Engineering

Polytechnic Institute of Cavado and Ave

Grade: 80% • Thesis: "Scan Optimization With AI"

Relevant Coursework: Algorithms & Data Structures, Linear Algebra, Statistics & Probability, Calculus, Machine Learning, Computer Vision, Natural Language Processing, Artificial Intelligence, Software Architecture

Professional Certifications

Fundamentals of Deep Learning

NVIDIA Deep Learning Institute2022

Issued by: NVIDIA

Hands-on course covering neural network training, optimization techniques, and deployment strategies using NVIDIA's deep learning frameworks and GPU acceleration.

Deep Learning
CUDA
GPU Computing
Neural Networks
TensorFlow
ID: PFLdUvZFSsG0B76Wq8GwUw
Fundamentals of Accelerated Computing with CUDA C/C++

NVIDIA Deep Learning Institute2022

Issued by: NVIDIA

Comprehensive program covering CUDA programming, parallel computing fundamentals, and GPU acceleration techniques for high-performance computing applications.

CUDA
C++
Parallel Computing
GPU Programming
Performance Optimization
ID: V94hFUVxTWCm70uaml3F6g
Fundamentals of Accelerated Data Science with RAPIDS

NVIDIA Deep Learning Institute2022

Issued by: NVIDIA

Advanced data science acceleration using RAPIDS framework, covering GPU-accelerated data processing, machine learning, and analytics workflows.

RAPIDS
Data Science
GPU Acceleration
Machine Learning
Python
ID: rLDG3HkhRZ2sDzYul_ue1A
Disaster Risk Monitoring Using Satellite Imagery

NVIDIA Deep Learning Institute2022

Issued by: NVIDIA

Specialized course on applying computer vision and deep learning techniques to satellite imagery for disaster monitoring and risk assessment applications.

Computer Vision
Satellite Imagery
Disaster Monitoring
Deep Learning
Earth Observation
ID: n-iWLJ66RRGEN-lS9N0BTA
Google Advanced Data Analytics

Google2023

Issued by: Google Career Certificates

Comprehensive data analytics program covering advanced statistical analysis, machine learning, and data visualization techniques using Google tools and methodologies.

Data Analytics
Statistical Analysis
Machine Learning
Data Visualization
Python
R
ID: 73ZZCCDNKMNE
Security Champion

Checkmarx2024

Issued by: Checkmarx Ltd.

Professional certification recognizing advanced expertise in application security, secure code practices, and security-first development methodologies. Demonstrates proficiency in identifying vulnerabilities and implementing security best practices.

Application Security
Secure Coding
Vulnerability Assessment
Security Best Practices
Code Review
ID:
Greatest Achievement
Vaisys Inc.
Pioneering Value-Driven AI Systems that harness enterprise-grade agentic artificial intelligence to boost business performance while benefiting everyone

A Delaware-based startup shifting AI from Language → Agentic Action Model (LAM), moving beyond conversation to safe, autonomous execution. Where enterprises scale faster, innovators stay in control, and society shares the rewards.

Autonomy

End-to-end execution with zero babysitting. AI that works as a tireless collaborator.

Reliability

Self-monitoring, self-healing systems with human-override capabilities. Technology people and enterprises can trust.

Velocity

Hours of work collapsed into seconds. Cutting downtime, shrinking dev cycles, and amplifying human creativity at scale.

Human-Centric

Surfaces decisions and keeps people in control. Guided by transparency, collaboration, and responsible innovation.

Large Action Models in Practice

Agentic AI that runs, reasons and acts for enterprises 24/7

Continuous Autonomous Ops
Watches logs, fixes incidents, writes post-mortems
Self-Maintaining Code
Profiles, refactors, tests and commits automatically
Decision Intelligence
Researches, models and drafts reports for leaders
Cross-Domain Flexibility
From data engineering to robotic control—same model, new role
Self-Evolving
Adjusts from every run through memory
Always Human-in-Loop
Autonomous execution with human oversight and control
Technology & Innovation

Our core innovation is the Language → Agentic Action Model (LAM)—moving AI beyond conversation to safe, autonomous execution. Whether keeping infrastructure resilient, maintaining codebases, or surfacing strategic insights, LAM works as a tireless collaborator with humans always in the decision loop.

By pairing frontier research with principled guardrails, we're setting a new standard for AI-enabled growth where enterprises scale faster, innovators stay in control, and society shares the rewards.


Vaisys is guided by a value-focused ethos: transparency, collaboration, and responsible innovation. We build technology people and enterprises can trust, creating AI that genuinely benefits society through ethical practices and purpose-driven solutions.

Our vision is to harness advanced, enterprise-grade agentic artificial intelligence that boosts business performance while benefiting everyone—ensuring artificial intelligence amplifies human capability rather than replacing human judgment.

Learn More About Vaisys
Visit Vaisys.comContact Team
Get In Touch

Let's Build the Future

Ready to collaborate on innovative AI projects, research opportunities, and transformative solutions

Open to discussing AI research, enterprise solutions, startup opportunities, and projects that push the boundaries of machine learning

Email

contact@diogoantunes.ai

diogo@vaisys.com

Best for formal inquiries and collaborations
Phone

+351 939 911 077

Available 9 AM - 9 PM UTC

For urgent matters and direct discussions
Location

Lisbon Metropolitan Area

Portugal & Remote

Available for in-person meetings in Portugal
Availability

Open for Networking

Consulting & Collaborations

Ready for professional networking and partnerships

Connect & Follow

LinkedIn

@diogo-antunes2

Professional network & updates
GitHub

@0xdbff

Open source projects & code
Personal Website

diogoantunes.ai

Portfolio & research
Vaisys

vaisys.com

Company & AI research
Instagram

@diogo.antunes._

Personal life & behind the scenes
Ready to Start Something Amazing?

Whether you're looking to push the boundaries of AI research, build enterprise solutions, or explore new frontiers in machine learning, I'm here to collaborate and create impactful innovations.

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