Isela Macía, PhD, MBA

CTO Contabilizei

São Paulo, Brazil

About

I am passionate about technology, building high-performance teams, and growing companies through technology innovation with a strong user-centric mindset. A technology business leader with 20+ years of experience and a proven track record of delivering high-impact software platforms across multiple industries — accounting, consumer-goods marketplaces, healthcare, oil and gas, legal, and aviation — in multi-cloud environments (GCP, AWS, and Azure). I currently lead the technology organization of the largest accounting firm in Brazil. Previously, I led the largest second-hand product marketplace in the country, where I also managed one of the top five AWS accounts in Brazil. Before that, I drove a successful technology transformation at Thomson Reuters Brazil, and earlier led a digitalization program for GE's manufacturing plants in Brazil through the adoption of Industry 4.0. Driven by challenges, I move comfortably across responsibilities that demand different skill sets. Outside of work, I enjoy reading, playing tennis, and dancing.

Experience

  • CTO at Contabilizei
    Feb 2024 - Present · 2 yrs 5 mos

  • OLX Brasil (Full-time · 3 yrs 4 mos)
    • Vice President of Engineering
      Jul 2021 - Feb 2024 · 2 yrs 8 mos

      Lead OLX Marketplace engineering team.

    • Director of Technology
      Nov 2020 - Aug 2021 · 10 mos

      Leading the Cross-Engineering organization responsible for system reliability, scalability, cloud efficiency and governance, security, mobile platforms, big data stack including tools/products ecosystem, governance and cross-company business metrics. Leading development teams at OLX Business Unit responsible for: (i) products monetization including signatures/one-time products, advertising, payments and (ii) customer journey success, including customer assistance, notification, mediations, satisfaction measurements.

  • Thomson Reuters (3 yrs 1 mo)
    • Proposition & Product Managing Director
      Mar 2020 - Nov 2020 · 9 mos

    • Product Quality and Governance Director - Legal LatAm
      Apr 2019 - Apr 2020 · 1 yr 1 mo

    • Product Ecosystem Architecture Director - Legal LatAm
      Nov 2017 - Apr 2020 · 2 yrs 6 mos

  • GE Global Research (5 yrs 11 mos)
    • Technical Operations Leader
      Feb 2017 - Nov 2017 · 10 mos

    • Software Technology Leader - Senior Scientist
      Feb 2014 - Feb 2017 · 3 yrs 1 mo

      - Create a diverse portfolio of digital solutions to solve critical problems in manufacturing and supply chain domains with impact of $20M in savings. - Focus on productivity improvement, achieving ~15% of productivity gains in several GE factories, exceeding targeted goals. Other benefits include 50% of production unplanned downtime reduction, 30% of equipment wear reduction, 15% of equipment usage reduction, real-time inventory control and logistics area reduction. - Identify key technical needs, develop new ideas and solutions - Work with local and global teams of stakeholders (Brazil, UK, US, Turkey, France and Germany) to establish a project pipeline and align expectations. - Lead cross-functional technical teams: software engineers, mobility researchers, data scientists. - Responsible for developing a system to assist and improve paddling sports training sessions. System was approved by the Brazilian Canoeing Elite team, winning 3 medals in the Olympic Games Rio’16 (see media below for more details) Business segments: Oil and Gas, Power, Healthcare, Transportation and Sports

    • Software Architecture Researcher
      2012 - 2014 · 2 yrs

      - Contribute to the team using my software architecture skills. - Design a software platform to speed up the development of Augmented Reality applications. - Develop (hands-on) applications based on healthcare patterns (IHE, HIE, HL7, OpenEHR, DICOM) - Develop (hands-on) software systems for real-time monitoring and diagnosing aero-derivative turbines in FPSO. - Visit customer operations, participate in workshops. - Establish connections with stakeholders in the healthcare public and private sectors Business segments: Oil and Gas, Healthcare and Appliances

  • Visiting Researcher at University of Southern California
    Jan 2012 - Oct 2012 · 10 mos