Githubcelosotomaior

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Senior Software Engineer with 10+ years of experience, building across mobile, web, backend, and AI/ML — and the art of clear, resilient architecture.

Culture

Awards & Recognition

Distinctions earned through competitive engineering, innovation, and enterprise impact.

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1st Place — RSK Blockchain London Hackathon, International Competition 2019

Won first place at an international blockchain hackathon in London, demonstrating innovation in decentralized technology and rapid engineering execution under competitive constraints.

Key Features

  • Decentralized Architecture
  • Real-Time Settlement
  • Smart Contract Integration

How It Works

01_RAPID PROTOTYPING02_BLOCKCHAIN03_DISTRIBUTED SYSTEMS04_SMART CONTRACTS
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{02}

AI Ambassador — JPMorgan Chase, Enterprise AI Enablement Program

Selected to champion practical, secure AI adoption across engineering teams at one of the world's largest financial institutions. Bridges cutting-edge AI capabilities with enterprise-grade security and compliance.

Key Features

  • Developer Productivity
  • Secure AI Integration
  • Enterprise Adoption

How It Works

01_AI ENABLEMENT02_ENTERPRISE SECURITY03_DEVELOPER EXPERIENCE04_KNOWLEDGE SHARING
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{03}

eCornell Machine Learning Certificate — Cornell University (in progress)

Advanced ML program covering probability distributions, linear algebra, decision trees, deep learning, transformers, and model debugging. Built a Facial Recognition prototype and supervised classifiers.

Key Features

  • Supervised Learning
  • Neural Networks
  • Model Evaluation

How It Works

01_MACHINE LEARNING02_DEEP LEARNING03_CLASSIFICATION04_CORNELL UNIVERSITY
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{04}

AI-Powered Delivery Orchestration — Personal Project

Built an AI orchestration system automating the software delivery lifecycle — connecting Figma, Jira, Confluence, Jenkins, Bitbucket, GitHub, and Bugsnag. Completed in under 2 minutes what typically takes 90 minutes of manual work — a ~95% reduction in execution time.

Key Features

  • End-to-End Automation
  • Tool Integration
  • 95% Time Reduction

How It Works

01_AI ORCHESTRATION02_LLM INTEGRATION03_PROMPT ENGINEERING04_PYTHON
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Process

How I Work

A disciplined engineering approach shaped by fintech precision, enterprise scale, and the conviction that architecture is strategy.

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Architecture & Analysis

Deep analysis of requirements, constraints, and system boundaries. Define clean architecture layers with MVVM/MVVM-C, Coordinators, and protocol-oriented design before writing a single line.

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Secure Implementation

Build with security, accessibility, and fault-tolerance as first-class concerns. Strategy pattern + protocol-oriented design for reuse and testability. Every transaction flow designed for adversarial conditions.

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Testing & Validation

Comprehensive testing pyramid — unit, integration, snapshot, and accessibility audits using XCTest. 50%+ coverage increases and 30%+ crash-rate reductions across production apps.

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Delivery & Iteration

Continuous delivery through CI/CD (Jenkins, Fastlane, Azure DevOps). Feature flags, staged rollouts, and data-driven iteration to ensure reliable releases at scale.

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Reviews

What People Say

Feedback from engineering leaders, managers, and collaborators I've worked alongside.

"He was one of the smartest software developers I have ever worked with, and he played a pivotal role in creating and enhancing many of Universal's mobile applications for its most popular parks and destinations. He crafted many innovative features and interactive experiences for guests, including the Power Up bands at Super Nintendo World."

Clarissa Jawaid

Lead Software Engineer, Mobile — Universal Destinations & Experiences

LINKEDIN

"I worked closely with Marcelo during his time at Universal Studios. He had a key role in the development of several of Universal's mobile applications which currently serve the millions of visitors that visit Universal parks each year. His ability to solve complex problems and devise innovative solutions was instrumental."

Lee Vaughn

Senior Software Engineer — Universal Destinations & Experiences

LINKEDIN

"Marcelo had a pivotal role in the project because he translated the Android logic into Swift and developed platform-specific design patterns. He exhibited an ability to understand business needs, ensure the application was technologically sound, while also making sure it was easy to use for older customers."

Gianpaolo Riva

Co-Founder & Independent Solution Advisor — Qubit on Cloud

LINKEDIN

"Marcelo was my colleague in a cross team collaboration. He has a friendly attitude and is always pursuing new challenges and knowledge. I have witnessed his great commitment to his tasks and in the introduction of valuable and innovative mobile solutions."

Pedro Henrique Bof

Principal Engineer — Moonpig

LINKEDIN

"Marcelo is a really solid programmer, with a very committed work ethic. He always gets things done on time, is a fun, friendly guy to work with and is as dependable as anyone I know. A great communicator and one of only a few developers who has earned my complete trust!"

Sayyed Shah

Technical Lead, Full Stack Engineer — Payments & E-commerce

LINKEDIN

"Marcelo worked as iOS Developer at Buyagift performing the functions of Mobile Wallet and Mobile App Development. During that time, Marcelo maintained impeccable personal and professional conduct and demonstrated competence and dedication. We found that he is a very reliable, works with passion and fulfills his responsibilities."

Tariq Ahmed

CTO / Cloud, Data & AI Leader | Empowering Digital Transformation

LINKEDIN

"Marcelo is very passionate about computer engineering. His passion, unlike many others, derives from an inner thrive to discover the latest technologies on a global scale. Not to mention Marcelo has a strong interest in learning: he continuously searches for academic satisfaction... Visionary developer, greedy learner."

Mario Robert D'Ambrosio

Building scalable automated systems for apps and digital advertising

LINKEDIN

"I worked with Marcelo at Apple Developer Academy in Italy. He stood out for the commitment and quality in which he carried out his work. Polite, respectable and ready for challenges, he cared deeply about full stack developing in Swift throughout developing the App. Marcelo is an innovator with a great sense of business and a top team member. I will not hesitate to collaborate with him in the future!"

Francesco De Luca

Functional & Business Analysis Specialist presso Engineering Ingegneria Informatica Spa

LINKEDIN

Contact

let's build something exceptional

I'm always excited to connect with fellow _professionals_, potential _collaborators_ and anyone interested in my work using the preferred method of communication.

Smooth Tech Orb