DiogoAngelim
About
Full-Stack Engineer building scalable, AI-enabled products where performance, data, and real business outcomes matter.
I work across the stack using React, Node.js, TypeScript, Python, Rust, and SQL, delivering production-ready systems through a strong understanding of the Software Development Lifecycle.
My work has supported products used by thousands of users, high-volume transactional systems, and AI-driven decision tools in finance and SaaS.
Core Technologies
Core Languages & Frameworks
Data, AI & Visualization
Databases
Infrastructure, Cloud & DevOps
APIs, Automation & Platforms
Experience
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Software Engineer & Founder - Risk Divider - 2022 - current
Building AI-driven portfolio optimization tools for retail investors. Developed custom AI and statistical models that help users reduce risk and improve returns across stocks, crypto, and currencies. Early users experienced a 3X improvement in risk-adjusted performance. Focused on making investing smarter and more accessible without relying on traditional advisors.
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Software Engineer - Union Sistemas de Desenvolvimento - 2025
Contributed to the development of a high-impact ERP system using .NET, processing billions in transactions and serving local companies with global reach. My responsibilities included implementing new features, resolving complex bugs, and enhancing overall system functionality. I collaborated with stakeholders and subject matter experts to translate requirements into actionable solutions. Notably, I identified and resolved critical accounting mismatches that could have caused massive losses, ensuring accuracy and reliability across the platform. Through rigorous debugging, testing, and iterative improvements, I delivered high-performance code while contributing to a large-scale software ecosystem.
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Software Engineer - Codeable Aps - 2021 - 2022
Performed full-stack development with a focus on solid software architecture and efficient problem-solving. Built custom plugins, handled troubleshooting, implemented custom API integrations, and delivered secure, high-performing e-commerce solutions. Successfully migrated 300+ paying customers to a new payment processor, alleviating complexity for the client, ensuring fast delivery, and saving both time and money. Maintained high client satisfaction through clear communication, reliability, and consistent delivery.
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Software Engineer - On Purpose Projects - 2017 - 2021
Built and scaled websites from small projects to high-traffic platforms serving thousands of daily visitors, ensuring performance, compatibility, security, and maintainability. Engineered scalable web architectures that maintained fast load times under heavy traffic, implemented security best practices to protect client data, and optimized site performance, reducing page load times by up to 40%. Delivered client-focused solutions that translated designs into functional, pixel-perfect websites while establishing maintainable coding standards and documentation, streamlining collaboration, and reducing future development time.
Education
Computer Science — Undergraduate (Incomplete)
Estácio de Sá | 2018 – 2019
Economics — Undergraduate (Incomplete)
Universidade Federal de Viçosa | 2012 – 2014
Software Engineering — Associate (Incomplete)
Instituto Federal de Educação, Ciência e Tecnologia | 2008 – 2010
English Language & Advanced Proficiency — Completed
Associação Cultural Brasil–Estados Unidos | 2004 – 2010
Portfolio
| Speedio | Risk Divider |
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| Web Different | My Freight |
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| Blitz Design 2.0 | Blitz Design |
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| Prophecy | B2B Software Advisors |
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Certifications & Recognition
| Mentor | Upwork Top Rated | WordPress Expert |
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| Machine Learning | Meteor & React | Advanced English |
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Feedback
⭐⭐⭐⭐⭐ Add Date Filtering to Plugin
08 Dec 2021
Diogo delivered above and beyond what was expected.
Paul Morin
⭐⭐⭐⭐⭐ PaidMembershipPro to Paid Member Subscriptions
29 Nov 2021
Diogo was fantastic and went above and beyond my expectations.
He worked until all hours of the night getting a mission-critical project finished and anticipated possible challenges.
I’m ready to hire him for my next project!
Robert Johnson
⭐⭐⭐⭐⭐ I need some coding
19 Nov 2021
Diogo is very efficient. He listened patiently to all my needs and helped me accomplish exactly what I wanted.
He always replied within an hour! This is amazing.
Carman Chung
⭐⭐⭐⭐⭐ Pushing Local Pickup Plus options to Shipping
01 Nov 2021
Fast and super easy to work with.
Work was completed to a high standard.
Adam Selley
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