Cosmin S.

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.

Frontend

Backend

Database

DevOps

QA & Testing

Other

Work history

UpStack
UpStack
Senior Developer
2018 - Present (7 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 (3 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.

Showcase

Fullstack Developer - Minatjanster
Fullstack Developer - Minatjanster
  • Developed an innovative fintech application for managing subscriptions across multiple platforms.

  • Implemented integrations with multiple bank APIs to enhance the app's functionality.

  • Executed A/B tests on frontend enhancements to improve user experience.

Frontend Developer - 123Form Builder
Frontend Developer - 123Form Builder
  • Designed and implemented data visualization solutions for 123Form Build.

  • Worked with Chakra components on the frontend.

  • Utilized other tools for endpoints and DTOs on the platform.

Frontend Developer - AAA Roadside Assistance and Rescue
Frontend Developer - AAA Roadside Assistance and Rescue
  • Developed a new web application for AAA and CAA roadside assistance and rescue services.

  • The application enables users to request tow or roadside assistance during emergencies.

  • Integrated with Google Maps for overlay support, displaying live tow truck positioning.

Education

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