Diogo R.
Mobile Engineer - iOS

Skills

Node.js

Qlik Sense

Flutter

Sql

Firebase Realtime Database

Html

Java

Javascript

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Hire Diogo R.

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Bio

Possessing over 18 years of experience in the IT field, the professional expertise spans significant contributions in mobile development, including Android and Flutter, IT team management, and system/infrastructure management. The early engagement with computing at age ten ignited a passion that led to a professional journey beginning at approximately fifteen years old, during which foundational Linux skills were developed through voluntary work at a small wireless internet service provider.

Flutter Developer
7/1/2021 - Present

Developed expertise in Flutter to create a mobile version of a widely-used ERP system among accountants in Brazil. Utilized Figma for initial prototyping and redesigned the visual elements as per management's requests, leading to a successful launch in mid-2022. Achieved significant adoption with the app installed on over 20,000 active devices. Implemented dashboards for monitoring ERP modules and incorporated features like stock consultation via camera using Google's ML, approval of orders, and payments of bank accounts with token authentication.
Flutter Developer
3/2/2021 - 6/1/2021

Participated in the development team for a financial education application, utilizing Flutter for front-end implementation, integrating it with RESTful APIs and Firebase for back-end services. Developed expertise in unit and widget testing to ensure robust, error-free code and maintain high standards of software quality.
Technology and Development Manager
9/2/2020 - 2/2/2021

Developed technical expertise in Flutter and Firebase while architecting and developing a major project for the digital transformation of the largest equipment rental franchise in LATAM. Led an 18-member team in maintaining current operations while driving innovation, focusing on web, Android, and iOS applications. Implemented features such as e-commerce, digital signature (handwritten on screen and electronic), PIX payment integration, and Serasa credit checking. Applied machine learning to optimize various aspects of the operation, ensuring seamless and efficient service delivery.
Technology and Development Manager
1/2/2020 - 9/2/2020

Led the development team while architecting comprehensive financial solutions for the agriculture sector. Spearheaded implementing a data culture using Qlik Sense, enhancing data-driven decision-making processes. Designed and developed a Financial Institutions Receivables (FIDC) platform, ensuring seamless validation and approval of customer registration complete with documentation and risk assessments, real-time XML (nfe) import and evaluation, and CPR (rural producer note) import. Created a specialized CRA platform with additional specificities tailored to unique needs. Engineered an end-to-end solution that effectively connected resellers and distributors to agricultural producers nationwide, optimizing for better pricing and larger volume transactions. Developed an internet banking solution for investors, integrating it with existing ERP systems using Flutter and Firebase, significantly boosting development speed and team morale. Achieved rapid deployment of solutions, initiating pilot programs within three months and market release in an additional month. Ensured compatibility and functionality across Android, iOS, and Web platforms.
Technology and Innovation Manager
11/2/2018 - 9/2/2020

Driving the IT sector to foster innovation and business transformation within one of the largest special fertilizer industries in LATAM, orchestrated the creation of a hybrid CRM platform for Web, Android, and iOS. This platform offered offline capabilities and surpassed expectations through various REST and SOAP integrations. Spearheaded the development of a corporate portal encompassing payroll functionalities and an application for cargo tracking. Established essential industry alliances with Brain-Algar, Microsoft AI, and Google. Successfully architected the startup of Uby, addressing critical distribution challenges within the industry. Implemented a data-driven culture across the commercial team (over 150 representatives), administrative team, and production team, ensuring seamless operations and data utilization.
IT Coordinator
10/2/2014 - 10/2/2018

Managed budget (CAPEX and OPEX) of BRL 1 million for IT initiatives, overseeing efficient allocation of resources. Spearheaded the replacement of a CRM platform, resulting in a cost reduction from BRL 35,000 to 7,000. Developed Android and iOS applications using Flutter, including an app for tracking outsourced and own fleets (UbyTrack). Served as Product Owner for UbyCRM, UbyTasks, and UbyAdvisor, available on Google Play and Apple Store. Led the development of a portal (Java JSF) for employees to access payslips, time banks, birthdays, and other key information. Created numerous management dashboards in Qlik Sense, serving the needs of IT, Controllership, Finance, Costs, and Logistics departments.
ERP/HCM Technical Consultant
6/2/2013 - 9/2/2014

Developed extensive expertise in ERP and HCM systems through creating rules, reports, new screens, and processes. Successfully executed the Avancere and Quantum projects utilizing JavaServer Faces, PrimeFaces, and Tomcat.
Senior Systems Analyst
8/2/2011 - 5/2/2013

Developed the agricultural and cost module within the ERP system, significantly enhancing data management and operational efficiency. Spearheaded the deployment and migration of the Business Intelligence (BI) system from Pentaho to QlikView, reconstructing existing financial views and integrating new ones from additional modules. Engineered an offline field data collection project utilizing API development in Java 7 with MVC architecture, supplemented with Javascript, HTML5, WebSocket, and IndexedDB for robust offline capabilities.
Mid-Level Systems Analyst
8/2/2010 - 7/2/2011

Developed screens, business rules, and reports in the company's ERP, demonstrating extensive expertise in enterprise resource planning systems. Held sole technical responsibility for personnel administration systems, including payroll, time control, and benefits, showcasing a deep understanding of human resources applications. Automated stock, logistics, production, and HR processes, leveraging technical skills to enhance operational efficiency. Developed a web application for data collection using Java JSF 2.1, illustrating proficiency in Java-based web frameworks. Designed and implemented a development methodology, streamlining the application development process.
Systems Analyst
1/2/2010 - 7/2/2010

Managed and enhanced personnel management systems, specifically focusing on modules such as Rubi, Ronda, and Recruitment and Selection. Successfully rewrote the resume submission component of the recruitment module using JavaServer Faces, ensuring seamless integration into the broader Senior system.
Systems/Infrastructure Analyst
10/2/2004 - 12/2/2008

Administered Windows 2000/2003 and Linux servers, ensuring stable and secure server operations. Managed databases including MS SQL 2000/2005 and Oracle 10g, optimizing performance and reliability. Installed and administered network infrastructure, including firewalls, to maintain robust information security protocols.

From 2006 onwards, provided user support for Sapiens ERP systems, Rubi (payroll), and Ronda Ponto (electronic timekeeping), enhancing user experience and system efficiency. Developed new screens, reports, and business rules within Enterprise Management and Personnel Management systems, leading to improved operational workflows. Engineered an agricultural management module for tracking labor, man-hours, and machine-hours as well as an agricultural cost management module, delivering specialized solutions for agricultural operations.

Implemented and developed views in a Business Intelligence system using Pentaho, and subsequently migrated the system to QlikView, which enhanced data analysis and visualization capabilities.