01/14/2026 updated

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100 % available

Senior Frontend/Mobile Developer

Medias, Romania
Only remote
Computer Science, Faculty of Mathematics and Computer Science, UBB, Cluj-Napoca, Romania
Medias, Romania
Only remote
Computer Science, Faculty of Mathematics and Computer Science, UBB, Cluj-Napoca, Romania

Profile attachments

Filip Rosian CV.pdf

JavaScriptAgile MethodologyApp Store (IOS)Business To BusinessMobile Application DevelopmentCloud ComputingComputer ProgrammingProgramming ToolsWeb DevelopmentUser Interface DesignScalabilityMobile Application SoftwarePython (Programming Language)Project ManagementMongoDBNode.jsPolymer ChemistryNext.jsResponsive Web DesignSQL DatabasesTypeScriptWeb ApplicationsWorkflowsSAP DevelopmentData Storage TechnologiesReact.jsApache CordovaBackendGitContainerizationWeb TechnologiesReact NativeFront End Software DevelopmentReact ReduxGoogle PlayDatabase AdministrationDockerJenkins
React Development
Advanced expertise in React, TypeScript, and Next.js for building production-ready web applications with strong focus on B2B products and scalable architecture

Mobile Development
Comprehensive experience in React Native and Expo for cross-platform mobile applications, including deployment to App Store and Google Play Store

Full-Stack JavaScript
Proficient in modern JavaScript ecosystem including Node.js, Redux, MobX, and various frameworks for complete web application development

Backend Technologies
Experience with Python programming for rapid development and programming competitions, plus Node.js for server-side applications

Database Management
Working knowledge of MongoDB and SQL databases for data storage and retrieval in web applications

Development Tools
Proficiency with Git workflows, Jenkins pipelines, Docker containerization, and Agile methodologies for efficient project management

Cloud Platforms
Experience with SAP development tools and deployment platforms like Cordova for mobile application distribution

UI/UX Technologies
Skilled in modern web technologies including Lit framework, Polymer, and responsive design principles for user interface development

Experience

Professional experience5 - 10 years
Freelancer since2018

Languages

GermanFluentEnglishFluentRomanianNative speaker

Project history

Senior Frontend Developer

VOIS (Vodafone Intelligent Solutions)
Designed and developed front-end web components and features for various Vodafone websites and products. Provided technical expertise and architectural recommendations to enhance product performance and scalability for B2B customers.
  1. Developed web sites, using the latest, and very significant, React updates
  2. Got familiar and heavily used MobX as a simpler alternative to Redux
  3. Got familiar with Contentful and CMS based dynamic content website development
  4. Polished my Typescript skills by studying and developing features in multiple VOIS repos
  5. Invested time in studying courses and started tinkering with Go
  6. Got familiar with Git Workflows

Mobile / Frontend Developer

Aiconomy
I independently developed a mobile application for a Swiss football team, successfully
launching it on both the Apple App Store and Google Play Store. Throughout the project,
I maintained direct communication with the team’s representatives and conducted
in-person meetings to facilitate collaboration.
Additionally, I leveraged my web development expertise to efficiently complete and
optimize a B2B marketplace for a Swiss shoe company, providing support as needed.
  1. Developed a cross-platform mobile app using React Native and Expo. I was the main
  2. developer on this project and the app currently has >9k users.
  3. Helped repairing, optimizing and developing features on a webstore using React,
  4. NextJS and Redux. I also worked with Vercel for deploying the website.
  5. Got very familiar with ClickUp as an alternative to Jira
  6. Got used to managing less experienced developers in the projects that I was leading
  7. Developed soft skills in the multiple meetings with our direct customers

Frontend Developer

NTT Data
Developed features for the BMW Motorcycle Configurator, gaining in-depth knowledge
of the DOM and the browser workflows, through the new web frameworks utilized by
NTT. Acquired proficiency in Agile methodologies and the Atlassian Suite. Additionally,
gained experience in operations by handling on-call duties as part of the role.
  1. Developed web features using Lit (LitElement or Polymer), a reactive, component-based
  2. javascript framework.
  3. Solved basic operation related tasks related to the project we were developing
  4. Defined basic Jenkins pipelines
  5. Got familiar with Jira, Confluence
  6. Got familiar to story point estimation and effective task planning.

IDM Consultant

Xiting
Served as Identity Management Consultant focusing on smaller-scale projects aligned with web and mobile development expertise. Contributed to mobile application development and worked on adapting SAP proprietary frontend framework for mobile platforms.
  1. Used the SAP IDM tool to design identity management workflows for clients
  2. Got really familiar with React Native and developed features and fixes on a
  3. cross-platform mobile app
  4. Used Cordova to successfully deploy a small website developed in SAP Fiori to iOS
  5. and Android

Junior Full Stack Developer

AirportLabs
Began programming career developing features for mobile application used by airport staff globally. Focused on dynamically rendering live data on graphical maps and developed Smart TV and Smartwatch applications for airport operations.
  1. Developed features on the company’s main cross-platform mobile app (with >50k
  2. current users) using MeteorJS, a full-stack javascript framework and got very
  3. familiar with React, NodeJS, MongoDB and web sockets. The app was deployed to
  4. mobile using Cordova
  5. Developed a Smart TV app that is currently displayed on >1k airport screens using
  6. Tizen and WebOS specific web-based SDKs
  7. Developed a Samsung Smartwatch app using a watch-specific Tizen SDK
  8. Got very familiar with git
  9. Got very familiar with BASH and Linux in general
  10. Basic experience with Docker

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