Sergiu L.

About Me

A skillful mobile application/web developer with 3+ years of experience providing high-level solution-based coding and development. I specialize in applications and web development using ReactJS and React Native and am knowledgeable in various coding technologies. I am committed to providing quality solutions as demonstrated through my development in both “ground-up” and “live” projects. I am motivated by client satisfaction and my ability to provide comprehensive solutions to their challenging development needs.

Frontend

Backend

DevOps

Other

Work history

UpStack
UpStack
React Native Developer
2017 - Present (8 years)
Remote
  • Create and develop innovative software solutions for different clients across a broad range of industries.

  • Participate in scrums consisting of cross-functional teams, both software and hardware

  • Ensure that features are being delivered efficiently and on-time.

MCRO
MCRO
Software Engineering Consultant
2018 - 2020 (2 years)
Cluj - Napoca, Romania
  • Built high-performance mobile, web and desktop apps for top clients using React Native and JS technologies, implementing major features for products.

  • Advising clients on using technology and applications to meet their business objectives and solve problems for their organization.

  • Recommending software developments and implementations, developing required system changes, and testing solutions to make sure they meet customer requirements.

pdfTooDoc
Founder
2017 - 2019 (2 years)
Cluj, Romania
  • Created it from the ground up, having the mission to develop the simplest way to convert pdf to doc/docx files or vice versa.

  • Identified opportunities by analyzing the market segment and determining user needs.

  • Developed the product by determining specifications and bringing that product into production.

Freelance
Freelance
Lead Developer
2017 - 2017
Remote
  • Developed an application that allows users to create on-demand bookings for cosmo and beauty businesses with both a business and a customer side.

  • Integrated the business side with administrative tasks required for business registration including SMS verification, strip service integration, and Google address verification to allow for further Google marketing options.

  • Vetted and hired two software developers to ensure continued project development.

Around25
Around25
Software Developer
2016 - 2017 (1 year)
  • Integrated a complex system for continuous delivery of mobile apps/application generator using Node.js for the server and React Native for the generated apps.

  • Developed a web system that communicates with the Amazon API in order to locate products that can be used in charity campaigns. Trained interns on ReactJS and Redux architecture.

  • Led a development team while serving as a startup tech lead and integrated final product during a Start-Up Weekend event. Refactored the entire code for a mobile app that was in production in the Apple App Store and Google play within one month.

Smartware SRL Oradea
Smartware SRL Oradea
Web Developer Intern
2015 - 2015
Romania
  • Developed a login-register web application that moves API requests to Flipsnack.com to create online flipbooks using Php, HTML, CSS, JavaScripy/jQuery, and phpMyAdmin.

  • Assisted in create sites and applications that are customer-centric and on-brief.

  • Documented and maintained code, as well as delivered specifications for sharing across teams.

GMAB Consulting SRL
GMAB Consulting SRL
Front-End Developer Intern
2014 - 2014
  • Improved the interface design of a web application for managing production using HTML, CSS, and JavaScript on Bootstrap framework.

  • Created website layout/user interfaces by using standard HTML/CSS practices

  • Refined specifications and requirements by adhering to technical needs and deadlines.

Showcase

React Native Developer
React Native Developer
  • Refactored code to address inconsistent structure issues across iOS and Android.

  • Implemented Redux architecture for consistent code functionality.

  • Improved code structure and organization for streamlined development.

Tech-Lead
Tech-Lead
  • Led the development of the app.

  • Managed a team of seven during app development.

  • Successfully launched the app during the start-up weekend using task management and delegation.

Lead Developer
Lead Developer
  • Developed YouGiftIt, a web system for Amazon API communication to identify charity-suitable products.

  • Implemented automated processes using Stripe webhooks for project management and deadline adherence.

  • Utilized Node.js, ReactJS, Redux, and RethinkDB technologies.

Developer
Developer
  • Developed Zingfit, a Node.js-based system for continuous delivery of mobile apps.

  • Created a server to handle payload processing and screenshots/provisioning files.

  • Provided continuous delivery to Apple App and Google Play stores.

Education

Education
Bachelor’s Degree: Computer Science
Universitatea Tehnică din Cluj-Napoca
2012 - 2016 (4 years)