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Tetiana G.TG

Tetiana G.

Full Stack Developer – Vue, React, Node.js, Python

€150/day
1 project
Barcelona, ES
3-7 years

Average response time: 2 hours

Freelancer profile translated to English.
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About Tetiana

English

Freelance Full Stack Developer with 2.5 years of experience building web applications for clients in finance and logistics.

Projects include:

  • Dashboards and CRM systems
  • API integrations
  • Data and geospatial analytics solutions

I design back-end RESTful APIs and microservices with Node.js (Fastify) and Python, leveraging PostgreSQL and secure JWT/OAuth2 authentication, and build responsive interfaces with Vue.js and React. I use Docker and CI/CD for smooth deployments and integrate Mapbox for geospatial features.

I write clean, maintainable code and adapt quickly to new challenges. I communicate clearly with stakeholders to ensure transparency and alignment. I am a self-employed developer in Spain, accustomed to remote collaboration and committed to delivering high-quality solutions on time. If you need a Full Stack developer with technical expertise and strong communication, I can help bring your project to life.

Español

Soy desarrolladora Full Stack freelance con 2,5 años de experiencia creando aplicaciones web para clientes en finanzas y logística.

Mis proyectos incluyen:

  • Dashboards y sistemas CRM
  • Integraciones de API
  • Soluciones de análisis de datos y geoanalítica

Diseño API REST y microservicios con Node.js (Fastify) y Python, aprovechando PostgreSQL y JWT/OAuth2 para autenticación segura. Desarrollo interfaces adaptables con Vue.js y React. Uso Docker y CI/CD para despliegues fluidos e integro Mapbox para funcionalidades geoanalíticas.

Escribo código limpio y mantenible y me adapto rápidamente a nuevos desafíos. Me comunico de forma clara y frecuente con los involucrados para garantizar transparencia y alineación. Como autónoma en España, estoy acostumbrada al trabajo remoto y me comprometo a entregar soluciones de alta calidad a tiempo. Si necesitas una desarrolladora Full Stack con experiencia técnica y buena comunicación, puedo llevar tu proyecto al siguiente nivel.
  • Ukrainian

    Native or bilingual

  • English

    Fluent

  • Spanish

    Fluent

  • Catalan

    Conversational

Can work on-site
Barcelona (up to 50km)

Experience

  • Pulse
    Full Stack Developer
    PUBLIC SECTOR
    October 2025 - January 2026 (3 months)
    Barcelona, Spain
    Participation in the maintenance and evolution of a web application in a production environment.

    • Bug fixing and stability improvement in frontend (React) and backend (Node.js + Express).
    • Development of new modules related to automated document generation.
    • Implementation and integration of REST APIs, including external AI-based services.
    • Optimization of queries and data handling in MongoDB.
    • Refactoring of components and improvements in code structure following best practices.
    • Collaboration in the continuous improvement of performance and user experience.
    Antd Node.js Express React.js MongoDB
  • DocsSpace
    Full Stack Developer
    E-COMMERCE
    February 2025 - Today (1 year and 6 months)
    Kyiv, Ukraine
    Developed web and desktop applications that automate financial and logistics operations. Implemented RESTful APIs. Developed and integrated payment systems and financial process automation. Created Telegram bots to automate user transactions, notifications, and tracking. Optimized PostgreSQL databases and developed data prediction tools. Built desktop applications with Electron for internal and client use. Used the entire technology stack in the projects: from frontend (React, Next.js) to backend (Node.js, Python) and infrastructure (Docker, Apache).
    React Next.js Python PostgreSQL Bot
  • Softpro
    Full Stack Developer
    PUBLIC SECTOR
    June 2024 - December 2024 (6 months)
    Kyiv, Ukraine
    Developed scalable backend services with Node.js and Fastify within a microservices architecture, ensuring high performance and maintainability. Designed and optimized RESTful APIs and database queries using PostgreSQL.
    Built dynamic interfaces in Vue.js and reusable UI components for visualizing and managing geospatial data. Integrated real-time data visualizations with ECharts and Mapbox, enabling interactive analysis and mapping functionalities.
    Vue.js Python Postresql Docker Mapbox

Reviews

5.0

Out of 1 rating

A

Anaïs

Una desarrolladora excepcional - Miadels LLC

Reviewed on 7/13/2026

Working with Tetiana has been an excellent experience. From the first moment, she proved to be a very responsible, organized, and fully committed person to the project. We proposed a significant challenge: developing a community platform for house sitting and pet sitting with user management and artificial intelligence integration. It was not a simple project, but she accepted the challenge with an incredible attitude and approached it with great professionalism. Throughout the process, she followed a very clear methodology, set goals from the beginning, and met each stage with constant communication. Although the development took longer than we initially expected (which is normal for a project of this complexity), Tetiana was always there, 100% involved, looking for solutions and ensuring everything was done correctly. Every time a bug appeared or a problem arose, she resolved it quickly and effectively. Her ability to take on challenges, adapt to changes, and find solutions is one of the qualities we would highlight most about her as a developer. In addition to her technical level, she is a very respectful, kind, and pleasant person to work with. Most importantly, she managed to capture exactly the vision we had for the platform, and even contributed ideas that helped improve the final result. It has been a true pleasure working with Tetiana. We recommend her without any doubt, and anyone who has the opportunity to have her as a developer will be in very good hands. We hope this is just the first of many projects we can undertake together <3

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Education

  • Bachelor of Engineering
    Kyiv Polytechnic Institute
    2024
    Grado en Ingeniería

Skill set

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