About me

I'm Danilo Aleixo, a Tech Lead with over 10 years of experience leading cross-functional teams and building scalable, high-impact pricing platforms. With a strong foundation in Computer Science and more than a decade of coding experience, I thrive at the intersection of complex algorithmic logic and real-world business challenges.

At numa, I lead the development of pricing tools and systems that integrate advanced algorithms with robust cloud architecture — driving automation, precision, and performance at scale. My expertise spans full-stack development (Node.js, React), cloud-native applications (AWS, Kubernetes), and architectural design of distributed systems.

What I'm doing

  • Agentic Coding

    Building with coding agents day to day — designing the context, guardrails and feedback loops that make their output production-grade.

  • Pricing Platforms & Algorithms

    Designing and shipping algorithm-driven pricing systems that turn complex business logic into automated, precise decisions at scale.

  • Full-Stack Development

    End-to-end product work across Node.js, TypeScript, React and Angular — from data model to the interface people actually use.

  • Technical Leadership

    Mentoring engineers, growing ownership across teams, and keeping technical decisions aligned with what the product actually needs.

Resume

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Education

  1. AI Hero by Matt Pocock

    May 2026 — Aug 2026

    Course covering a broad spectrum of AI engineering patterns — agents, evals, RAG and tool use — in TypeScript.

  2. University of São Paulo — BSc Computer Science

    Jan 2012 — Dec 2017

    Held a CNPq Scientific Initiation scholarship for one year, leading to the publication of the research "Event Simulator for Spacial Systems".

Experience

  1. Lead Engineer — numa (formerly COSI)

    Mar 2021 — Present

    Leading the architecture and development of pricing tools and algorithm-driven systems across numa's tech stack. Driving innovation through scalable microservices and cloud infrastructure (AWS, Kubernetes). Working closely with product and data teams to integrate complex logic into customer-facing solutions, and mentoring engineers toward technical excellence and ownership.

  2. Software Architect — Learn To Fly

    Feb 2018 — Feb 2021

    Responsible for turning the idea into reality. Architected and helped develop the whole system from the ground up, managing a team of developers and designers across a full spectrum of services using Node, Angular, React, AWS and Kubernetes.

  3. Tech Lead / Full-Stack Developer — Colmeia

    Apr 2017 — Feb 2018

    Managed a small team of developers and designers delivering the full client application in Angular. Architected a fully scalable client application using design patterns and object-oriented approaches, and helped architect a Node.js backend on GCP built for scalable growth and performance.

  4. Founder — EduCaqui

    Mar 2016 — Feb 2017

    Founded with friends as a peer-to-peer tutoring platform. Took it from ideation to implementation and raised angel investment, but the company folded during the test phase.

  5. Intern — Itaú BBA

    Aug 2014 — Aug 2016

    Worked in software development and business analysis for several of the bank's foreign units, including New York, Nassau/Cayman and London.

Skills

  • Backend & Distributed Systems
    90%
  • Technical Leadership & Mentoring
    90%
  • Cloud & Infrastructure (AWS, Kubernetes)
    85%
  • Algorithms & Pricing Systems
    85%
  • Frontend (React, Angular, TypeScript)
    80%

Blog

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