Hi, I'm

Isabella Nunes

Software Engineer

About me

I design and implement high-impact solutions for global enterprises. My work spans full stack development, architecture, and automation, connecting technical decisions to measurable business outcomes.

Key achievements:

  • Designed an RFID management platform for Grupo Boticário, processing more than 50K tags per day.
  • Automated workflows for Dell global warehouses with a custom SRE platform used by international teams.
  • Led migrations and modernization initiatives at Philips, improving performance and maintainability for distributed teams.

I believe in pragmatic solutions that balance innovation, maintainability, and data. Good code helps real people make better decisions.

Outside work I enjoy playing piano, aquarism, and brazilian Jiu-Jitsu.

Career

  1. Software Engineer

    Remote

    Grupo Boticário · Jan 2023 - Jul 2025 · Curitiba, Paraná, Brazil

    • Designed and developed a ground-up RFID tag management platform for distribution centers (DCs).
    • Processed 50K+ tags/day per DC, serving 1,500+ direct/indirect users.
    • Integrated industrial printing systems and IoT devices, enabling real-time monitoring.
    • Ensured end-to-end traceability for all products in group’s traceability pilot program.
    • Deployed across 2 DCs, reducing inventory errors by 35%; now scalable to all group DCs.
    • Elastic architecture handled 3x average demand spikes during promotions.
    • Analytics with New Relic dashboards, enabling teams to: Identify bugs/operational failures, drive data-driven decisions and optimize logistics processes.
  2. Programming Teacher

    Remote

    Cubos Academy · Nov 2022 - Jan 2025 · Salvador, Bahia, Brazil

    • Trained 800+ students across multiple cohorts, covering full-stack development and software engineering fundamentals.
    • Conducted a cohort of 100 women as part of the iFood 1000 program, training women from scratch in technology with zero prior experience.
    • Recorded a Java course, producing structured video content for asynchronous learning at scale.
    • Mentored students through career transitions, helping them land their first roles in tech.
  3. Software Engineer

    Remote

    iFood · Jan 2022 - Jan 2023 · Osasco, São Paulo, Brazil

    • Contributed to the development and evolution of high-availability financial systems, ensuring the reliability and transactional integrity of the payments ecosystem. My work directly impacted sales conversion rates and platform stability during high-traffic peaks.
    • Payments Engine: Architected and engineered the transactional processing core, designed to handle high throughput while guaranteeing data consistency at scale.
    • Smart Routing & Fallback: Designed and implemented a dynamic payment routing system. The mechanism detects failures in acquirers or payment methods in real time and instantly redirects traffic to a fallback route, maximizing authorization rates and minimizing end-user friction.
    • Penalty & Rules Engine: Developed a transaction penalty system to mitigate risks by applying complex business rules to block or restrict undesirable payment attempts based on flow behavior patterns.
  4. Programming Teacher

    Remote

    Digital House Brasil · Jun 2022 - Dec 2022 · São Paulo, São Paulo, Brazil

    • Delivered programming courses to 200+ students, focusing on practical skills and industry-ready knowledge.
    • Developed exercises and assessments to reinforce learning outcomes and track student progress.
    • Supported students in building portfolios and preparing for technical interviews.
  5. Programming Teacher

    Remote

    Blue EdTech · May 2021 - Jul 2022 · São Paulo, São Paulo, Brazil

    • Delivered hands-on programming courses covering web development fundamentals, backend, and frontend technologies.
    • Trained 400+ students, guiding them through real-world projects and best coding practices.
    • Developed and structured course content, exercises, and assessments aligned with industry demands.
    • Supported career transition students, helping them build portfolios and prepare for their first tech roles.
  6. Software Engineer

    Remote

    Dell Technologies · Feb 2019 - Jan 2022 · Round Rock, Texas, United States

    • Designed and developed an SRE platform for Dell’s internal teams to automate services, leveraging SQL scripts, Shell, Python, MongoDB, and other integrated technologies.
    • Developed 30+ custom drivers to enhance platform functionality.
    • Deployed the platform as a monitoring solution for Dell’s global warehouses and factories, featuring real-time dashboards and diagnostic diagrams.
    • Collaborated with the Procurement team to automate processes, achieving 82% process automation and resolving ServiceNow incidents through workflow modernization.
    • Collaborated with international teams (India, Malaysia, China, US) on the platform’s development and deployment, aligning requirements and ensuring global integration.
    • Worked on IST timezone.
  7. Software Engineer

    Hybrid

    Philips · Mar 2017 - Feb 2019 · Blumenau, Santa Catarina, Brazil

    • Led the global migration of a critical microservice from MongoDB to PostgreSQL, impacting 1,000+ developers across Philips’ teams in the Netherlands, India, and other regions. The refactor improved data consistency, query performance, and long-term maintainability.
    • Contributed to the platformization initiative, modularizing the oncology monolith (part of Philips Tasy, used in 30+ countries) into microservices while upgrading the stack from Java 8 to Java 11. Collaborated with cross-functional teams to ensure seamless adoption.
    • Supported frontend modernization by assisting Tasy teams in migrating legacy Delphi components to Angular, enhancing UI scalability for a system serving 5,000+ healthcare institutions worldwide.
  8. Software Engineer

    On-site

    Senac · May 2011 - Mar 2017 · Jataí, Goiás, Brazil

    • Full Cycle development of SEI, a proprietary LMS (Learning Management System) inspired by Moodle, deployed across all SENAC units in Goiás to centralize academic operations.
    • Engineered integration with TOTVS HR systems, automating data synchronization for 100,000+ students and instructors.
    • Empowered statewide education programs (in-person, Pronatec, EAD, technical, and vocational courses) with digital classrooms (video lectures, interactive materials, and progress tracking), automated attendance and reporting with real-time dashboards, and custom academic tools for grading, feedback, and administrative workflows.
    • Scaled the platform to support high-volume usage while maintaining performance and reliability.
    • Became the core educational platform for SENAC Goiás, reducing administrative overhead by 40%.

Education

  1. Universidade do Vale do Itajaí

    Master's degree, Applied Computing

    In progress

    2024 - Present

  2. Faculdade de Tecnologia Rocketseat

    Postgraduate Diploma, Tech Developer 360

    In progress

    2025 - 2026

  3. Faculdade Brasília

    MBA, Full Cycle Architecture

    Completed

    2023 - 2024

  4. Universidade Federal de Goiás

    Bachelor's degree, Computer Science

    Completed

    2014 - 2018

Courses

Branas

Clean Code and Clean Architecture

Clean CodeClean Architecture

Books

Clean Architecture: A Craftsman's Guide to Software Structure and Design

Robert C. Martin

ArchitectureDesign

Domain-Driven Design: Tackling Complexity in the Heart of Software

Eric Evans

DDDModeling

The Pragmatic Programmer: Your Journey to Mastery

David Thomas and Andrew Hunt

CareerPractices

Projects

Publications