Cosmin S.

Cosmin S.

Fullstack Developer

Brasov, Romania
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About Me

Cosmin is an expert Fullstack Developer with 15+ years of technical experience working on architectural designs and implementing various applications and complex platforms using modern web technologies, tools, libraries and frameworks. He has team lead experience - working closely with devs and clients to meet deadlines and produce high-quality functional applications on projects.

Work history

UpStack
UpStack
Senior Developer
2018 - Present (6 years)
Remote
  • Creating and developing innovative software solutions for 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.

Ddroidd
Ddroidd
Frontend Developer
2022 - Present (2 years)
Iasi, Romania
  • Built and implemented solutions on the project from scratch - adding themes, implementing components and designs from the client.

  • Iterated configurable components that are simple, effective and delightful to use on the multi-tenant fintech app.

  • Weighed in on dev strategy, architected the core frontend solution and implemented growth techniques on the project.

123FormBuilder
123FormBuilder
Frontend Developer
2019 - 2022 (3 years)
Romania
  • Designed and implemented new frontend solutions on 123Form's data visualization module and components on its platform.

  • Liaised with the UX team to design, develop and implement new data visualization, theming and theme switching solutions.

  • Managed, coached and mentored junior devs on the project on Agile methodologies and story slicing techniques.

Minna Technologies
Minna Technologies
Fullstack Developer
2019 - 2021 (2 years)
Sweden
  • Worked on solutions to fetch data from multiple API endpoints and integrated external APIs to enhance the internal detection engine by 19%.

  • Implemented new frontend changes with improved UI/UX designs and implemented event sourcing to manage app state.

  • Refactored legacy codebases, migrated components to new libraries, and evangelized best practices on the project.

Clevertech
Clevertech
Frontend Developer
2019 - 2019
Remote
  • Built up a new iteration of the AAA and CAA web app with new and improved features to enhance the user experience.

  • Gathered, analyzed and translated client requirements into high-quality designs, code and components.

  • Provided support for Google Maps - improving performance, reliability, and maintainability.

Freelance
Freelance
Fullstack Developer
2019 - 2019
Remote
  • Designed and implemented a social network application with multiple features and functionalities for users.

  • Developed the backend components and modules, implemented the database and iterated the frontend solution.

  • Worked on user access solutions using JWT and enhanced support of CI/CD using Docker on the application.

Littledata
Littledata
Fullstack Developer
2018 - 2018
Remote
  • Designed and added new backend functionalities, microservices and frontend components on the Littledata application.

  • Refactored the codebase on the central dashboard and implemented new solutions on the app - increasing retention by 12%.

  • Wrote unit tests and executed end-to-end tests on the front and backend using different tools.

Exponential
Exponential
Senior Frontend Developer
2011 - 2018 (7 years)
Brasov, Romania
  • Designed and architected a new software solution for an internal video player platform that works across all products.

  • Organized and conducted several AS3/HTML5 seminars, webinars and technical boot camps for teams and junior devs.

  • Developed and deployed solutions for the ad serving framework using Actionscript and JavaScript tools.

Adotube
Adotube
Lead Flash Developer
2007 - 2010 (3 years)
Brasov, Romania
  • Designed and developed Adotube.com from conception to release - managing all stages of the process and the advertising platform.

  • Migrated the 'ad serving' platform to AS3/HTML5 - maintaining the required functionalities and features across all versions.

  • Led the dev team to document, wikify and test setups for each feature on the platform.

IT Six Global Services
IT Six Global Services
Senior Programmer,
2006 - 2007 (1 year)
Romania
  • Developed an automatic engine for generating business cards, leaflets, and posters using Actionscript 3 and SOAP webservices.

  • Built an online maps application with features and plugins for routing, configurable points of interest, address, POI search, and dynamic map overlays.

  • Maintained and migrated different software applications to new and improved languages like AS3 and HTML.

Freelance
Freelance
Junior Web Developer
2003 - 2006 (3 years)
Remote
  • Designed and implemented different Flash-based applications with enhanced features on multiple projects for clients.

  • Worked on a casino gaming platform with seven games and configurable with different skins and sound effects.

  • Recommended new solutions, maintained existing solutions, fixed bugs and defects and evangelized best practices on projects.

Portfolio

Fullstack Developer - Minatjanster
Fullstack Developer - Minatjanster

Worked on an innovative fintech application that allows users to manage different subscriptions on one platform. Designed and implemented integrations with multiple bank APIs, and deployed solutions to enhance the look and feel of the app. Executed A/B tests for frontend enhancements on the project.

Frontend Developer - 123Form Builder
Frontend Developer - 123Form Builder

Designed and implemented data visualization solutions for 123Form Build, one secure form builder platform with infinite data collection uses cases. Worked with Chakra components on the frontend and utilized other tools for the endpoints and DTOs on the platform.

Frontend Developer - AAA Roadside Assistance and Rescue
Frontend Developer - AAA Roadside Assistance and Rescue

Designed and implemented a new web application to enhance the AAA and CAA roadside assistance and rescue services. The application allows users to request tow or roadside assistance during emergencies. Integrated the app with Google Maps and provided overlay support for displaying useful information like a tow truck's live positioning.

Education

BSc. Engineering (Computers, and Control)
BSc. Engineering (Computers, and Control)
University of Craiova
2001 - 2006 (5 years)