Sergio H.
Front-end UX Engineer

Skills

Node.js

Flutter

React Native

Typescript

Javascript

React

Sergio is available for hire

Hire Sergio H.

All Howdy Candidates are vetted for skills and english proficiency.

Bio

A seasoned Mobile Tech Lead with over five years of experience and a degree in Electrical Engineering. Initial career includes pivotal roles as a React Native developer, contributing to multiple mobile applications within various financial and e-commerce contexts. Subsequent experience encompasses spearheading the development of mobile applications, harnessing React Native and orchestrating backend operations utilizing AWS tools.

Current focus has been in the e-commerce sector, advancing from junior developer to mobile tech lead. Responsibilities have included the development of major mobile applications using React Native (TypeScript) and Flutter, in addition to involvement in multiple Node.js projects.

Committed to continuous professional growth, the exploration and study of Golang to deepen software development knowledge is underway. Career aspirations are aimed at attaining expertise as a mobile specialist, with extensive experience in Objective-C and Java within native development environments.

Programming is pursued with dedication, driven by the satisfaction derived from creating solutions that are both useful and impactful.

Tech Lead | Senior Mobile Engineer
9/1/2022 - Present

As a tech lead, ensured the smooth operation of mobile applications from the initial handoffs by UX teams and business unit definitions through to development and deployment. Developed proficiency in React Native, constructing flagship apps like Wine, which facilitates wine purchases from retail stores, online platforms, and subscription clubs. Created another React Native app, WE Wine, to empower entrepreneurs in selling wines to customers. Expanded technical expertise with the introduction of a Flutter-based application enabling barcode scanning and invoice generation in physical wine stores, integrated with Zebra scanners. Utilized various tools such as CleverTap, Bugsnag, Firebase, and Bitrise to maintain app health and functionality, ensuring a seamless user experience and high user satisfaction.
Mid Mobile Engineer
1/1/2021 - 8/1/2022

Led the development of an internal components library, closely integrating it with a UX team-designed system. Assumed project leadership roles, managing projects from inception to deployment, coordinating with stakeholders, and aligning with project goals and timelines. Collaborated actively with the UX team to ensure seamless integration of design principles into the mobile development process. Developed reusable components to maintain design consistency across mobile applications. Gained proficiency in project management, leadership, and technical skills, thereby significantly contributing to the team's overall success and project outcomes.
Junior Mobile Engineer
1/2/2020 - 12/1/2020

Developed proficiency in creating new features and resolving bugs within a collaborative app development team. Utilized React Native with TypeScript as the primary framework, employing Redux for efficient state management and Jest for comprehensive testing. Contributed significantly to the Boost your subscription project, which enhanced user flexibility by allowing seamless increases in subscription bottle quantities, ultimately driving revenue growth. Gained valuable experience in software development best practices, advanced problem-solving skills, and a thorough understanding of React Native and its ecosystem.
Mobile Engineer
1/2/2020 - 9/1/2020

Developed an ecommerce application specializing in genetic tests using React Native. Managed backend development leveraging AWS tools such as AppSync, Cognito, DynamoDB, Lambda, and S3. Utilized React Native for the frontend and AWS services for the backend, resulting in a robust and scalable platform that provided users with a seamless experience for purchasing genetic tests. Demonstrated expertise in mobile app development and proficiency in building and managing backend systems on the AWS cloud platform.
Mobile Engineer
3/2/2019 - 2/2/2020

Developed expertise in mobile development using React Native, alongside tools such as AWS Amplify for consuming GraphQL APIs through AWS AppSync. Played a pivotal role in the development of four distinct mobile applications, namely LiftPay, LiftBank, LiftMini, and LiftSeller. Enhanced the functionality of these applications by integrating an Objective-C library, enabling seamless communication with a Bluetooth credit card machine. This integration provided in-depth experience with cross-platform functionalities and significantly broadened technical capabilities in mobile development.