Hey there! I'm Andre Queiroz

but the internet knows me as Dezo

Software developer and AI Solutions Architect specialized in building forensic-grade systems with enterprise-level quality standards. Since the advent of AI, I've pivoted to master autonomous agent orchestration, context engineering, and Model Context Protocol (MCP) integrations.

Based in Canada and serving clients worldwide, I focus on designing efficient multi-agent workflows, secure and compliant AI integrations, and bridging legacy systems with cutting-edge AI technologies. With the AI revolution transforming 2025 into 'the year agents enter the workforce', my approach combines deep technical expertise with practical enterprise requirements.

My Journey

From Delphi to AI Agents — a love story with code

1997

Where it all began

Picture this: a teenager in Florianópolis, Brazil, discovering Delphi at SENAC. While my friends were worried about normal teenage stuff, I was building desktop applications for doctors and dentists. Yes, I was *that* kid — the one who thought databases were cooler than video games. (Spoiler: I still do.)

1999

Love at first 'html'

Then the web happened. One look at HTML, CSS, and those beautiful early JavaScript alerts, and I was hooked. It was love at first sight — or should I say, love at first 'script'. The ability to create something that anyone in the world could access? Pure magic.

2004-2021

The secret double life

For 17 years, I led a double life. By day: a respectable banking professional, helping clients with their financial needs, wearing the suit, attending the meetings. By night (and weekends, and lunch breaks, and... okay, maybe during some meetings too): a passionate developer building projects, learning new frameworks, and keeping the flame alive. Seventeen years of "I'll just fix this one bug before bed" — you know how that goes.

2021

A new chapter in Canada

In 2021, I made two life-changing decisions: I moved to Canada and said goodbye to the banking world. Now I dedicate myself full-time to what I've always loved: crafting custom solutions that help businesses and people grow. It took me 24 years to turn my hobby into my career, plus a trip across the Atlantic. Better late than never, right?

And honestly? Every line of code I write today still gives me that same excitement I felt back in '97. Some things never change — except now I don't have to hide my IDE when the boss walks by.

AI & Agent Engineering

Featured Specialization

Specialized skills for the agentic AI era:

01
Autonomous Agent Orchestration: Design and deploy multi-agent systems using frameworks like LangGraph, CrewAI, and Microsoft Agent Framework.
02
Model Context Protocol (MCP): Build standardized AI-to-tool connections — the 'USB-C for AI agents' enabling seamless integrations.
03
Context Engineering: Craft efficient prompts, manage state, and optimize token usage for production-grade AI applications.
04
Enterprise AI Compliance: Implement guardrails, authentication, audit trails, and safe design patterns for regulated industries.
05
Legacy System Integration: Bridge existing enterprise systems with modern AI capabilities through secure APIs and MCP servers.
06
Human-AI Collaboration: Design workflows where humans act as orchestrators and reviewers of AI-completed work.

Experience

Current

Full Stack Web Developer

Key Responsibilities:

  • Technological Versatility: Demonstrate strong skills in both front-end and back-end development, spanning a variety of technologies and programming languages.
  • Innovation: Ability to think outside the box to create innovative solutions that enhance user experience and optimize functionality.
  • Effective Collaboration: Work efficiently with diverse stakeholders, including clients, designers, and developers, to ensure successful project implementation.
  • Adaptability: Be able to quickly adapt to new technologies, methodologies, and project requirements to provide flexible and efficient solutions.
  • Clear Communication: Skill to clearly articulate ideas, design strategies, and technical decisions, both to team members and clients.
  • User Focus: Prioritize user experience and ensure that projects meet the needs and expectations of end-users.
  • Efficient Project Management: Ability to manage time and resources efficiently, meeting deadlines while maintaining work quality.
  • Problem Solving: Be proactive in identifying and resolving technical challenges, ensuring the successful delivery of projects.
17-year career in banking

Bank Clerk / Client Advisor

Throughout my 17-year career in banking (2004-2021), I engaged in diverse roles, offering comprehensive support to clients seeking various financial solutions. This role provided me with a solid foundation in customer service, problem-solving, and financial transactions. It significantly contributed to my growth as a professional in the field of information technology.

  • Customer Relationship Management: Cultivated strong and lasting relationships with clients.
  • Financial Product Expertise: Demonstrated in-depth knowledge of a variety of financial products.
  • Problem-Solving Skills: Developed effective problem-solving skills to address clients' financial challenges.
  • Sales and Consultation: Successfully promoted and sold financial products by understanding clients' needs.
  • Risk Management: Gained experience in assessing and managing financial risks.
  • Client Education: Educated clients on financial products.
  • Team Collaboration: Worked collaboratively with colleagues to ensure smooth operations.
  • Adaptability: Adapted to changes in the financial industry and market trends.
  • Effective Communication: Developed strong oral and written communication skills.
  • Time Management: Efficiently managed time to handle multiple client interactions and transactions.

Education

Web Development and Internet Applications

Two-year diploma program emphasizing Object-Oriented principles and hands-on experience with popular platforms.

Diploma
Proficient in creating websites using contemporary and sought-after languages and technologies.
Skilled in developing high-quality responsive websites.
Experienced in designing User Experiences (UX – UI) for optimal user interaction.
Competent in building agile projects and well-designed databases, emphasizing best practices in web development.

Technical Approach

AI✓ Agentic AI architecture (multi-agent orchestration, MCP integrations)
AI✓ Enterprise AI compliance (guardrails, audit trails, secure tool access)
✓ Performance-first development (INP p95 ≤ 50ms, LCP < 2.5s)
✓ Accessibility excellence (WCAG 2.2 AA compliance)
✓ Security-hardened by default (CSP, Observatory A+)
✓ Test-driven development with 16+ quality gates
✓ Constitution-driven approach to software design

Tech Stack

AIAI & Agent Frameworks

Claude/Anthropic APILangGraphMCP ServersOpenAI Agents SDKCrewAIPrompt EngineeringContext Engineering

Web Development

TypeScriptReact 19Next.js 15Node.jsTailwind CSSVitestPlaywrightZod

Other Technologies(yes, including Delphi memories)

PHPC#ASP.NETDelphiHTML5CSS3JavaScriptSQLGit
About | Andre Queiroz (Dezo) | DezoDev