Tatjana B.
Private message 
Gorishni Plawni,
Ukraine
available for hire
Rating
Language proficiency level
Українська: fluent
Русский: advanced
English: pre-intermediate
CV
For over 5 years I have been helping businesses build fast, responsive, and user-friendly interfaces as well as complete web solutions that deliver results. During this time:
✅ Delivered 20+ landing and pre-landing pages using TailwindCSS, Bootstrap, SCSS, achieving high PageSpeed Insights scores and optimizing for mobile and SEO.
✅ Built 100+ reusable UI components for React, Next.js, and React Native, including interactive forms, file uploaders, custom color pickers, and animations.
✅ Developed full-stack modules with back end on NestJS / Fastify, databases PostgreSQL / MongoDB, authentication, and REST APIs.
✅ Replaced outdated jQuery code with React/TypeScript, reducing bugs and simplifying maintenance.
✅ Integrated front end with REST APIs, managed application state with Redux Toolkit and RTK Query, and set up CI/CD pipelines on GitHub Actions for fast and stable releases.
✅ Worked with clients from e-commerce, logistics, and education, focusing on accessibility and clear, conversion-oriented interfaces.
✅ Integrated web interfaces and back end with Telegram bots: sending notifications, processing user requests, tracking order statuses.
I deliver the full development and deployment cycle — from simple landing pages integrated with CRM and bots to complex SaaS platforms, cross-platform applications, and automated systems, including deployment setup, monitoring, and ongoing support.
Skills and abilities
Programming
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Bot Development
from 22 USD for day
- Content Management Systems
- Data Parsing
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Databases & SQL
from 22 USD for day
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HTML & CSS
from 22 USD for day
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Javascript and Typescript
from 22 USD for day
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Python
from 22 USD for day
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Web Programming
from 22 USD for day
Design & art
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Web Design
from 111 USD for project
Services
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AI Consulting
from 7 USD for hour
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Cybersecurity & Data Protection
from 7 USD for hour
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Information Gathering
from 7 USD for hour
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Online Stores & E-commerce
from 7 USD for hour
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Payment Systems Integration
from 7 USD for hour
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Website Development
from 267 USD for project
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Website Maintenance
from 11 USD for day
Mobile development
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App Development for Android
from 33 USD for day
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Apps for iOS (iPhone and iPad)
from 33 USD for day
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Hybrid Mobile Apps
from 33 USD for day
Portfolio
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Avo Cado EMS/BI
Javascript and Typescript
Development of a custom EMS system for a mobile wellness application: managing engagement events, rating seasons, achievements, AI features, and a knowledge base for an AI nutritionist. Additionally, BI analytics, Firebase monitoring, and control of AI/cloud costs have been implemented. The development was carried out based on an existing Figma design and the current Firebase infrastructure.
Stack: React, TypeScript, Firebase, Supabase pgvector, Firebase Storage, Claude API, Tailwind, Recharts.
… Development time: 10 weeks
#React #TypeScript #Firebase #Supabase #ClaudeAPI #TailwindCSS #Recharts #AI #Dashboard #AdminPanel #BI #Analytics #Gamification #Vite #SPA #InternalTools #WebDevelopment #Frontend #Fullstack #FirebaseAuth #Firestore #CorporateApp #EMS #WellnessApp
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75 USD Music Tracks Manager
Javascript and Typescript
Music Tracks Manager - is a user dashboard in Big Music Hub.
Development of the dashboard for the music hub while adhering to the website's style. Users can manage tracks, upload audio, play compositions with visualization, and use filters and sorting. The responsive interface works on desktop and mobile devices.
Technologies: Next.js, React, Tailwind CSS, shadcn/ui, Web Audio API.
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600 USD Ultimate Espresso & Roasting Membership
Website Development
Turnkey website: from design to deployment
The main task was to create a page with ultra-fast loading and Performance metrics of 99/100. The project was implemented with a responsive design, image optimization (WebP, responsive), critical styles, lazy loading, and caching. Integration with SendGrid was set up for sending client applications, and deployment was carried out with consideration for SEO and Core Web Vitals. Technologies Frontend: HTML5, CSS3 (Tailwind CSS), JavaScript (ES2020+) Build: Vite, PostCSS, Autoprefixer Optimization: Critical CSS, Code Splitting, Lazy Loading, WebP Infrastructure: caching, integration with SendGrid, deployment to production.
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1200 USD Car Rental Dashboard
Javascript and Typescript
An intuitive dashboard has been created for fleet owners and managers. It allows tracking the fleet status, active rentals, and business financial metrics.
Functionality:
… Dashboard Overview: total number of cars, active rentals, monthly income, fleet utilization percentage.
Fleet Status: pie chart of available, rented, and serviced cars.
Revenue Trend: income dynamics chart.
Navigation: Dashboard, Vehicles, Clients, Bookings, Billing, Settings.
Style and UX:
Minimalistic, modern UI with a dark theme and bright accents, suitable for small and medium-sized fleets.
Technologies:
Supabase, Next.js, React, TypeScript, Redux, Redux-Saga, React Hook Form, TailwindCSS, Radix UI, Recharts, Lucide React, Zod, and other modern libraries for UI and state management.
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120 USD Workout — adaptive web page
HTML & CSS
Technologies: HTML5, CSS3, TailwindCSS
Landing page layout for the sports service Workout.
The task was to create a responsive, clean, and lightweight layout with an emphasis on typography and simplicity.
… - semantic HTML structure and correct markup;
- responsiveness for mobile and desktop screens;
- styling using TailwindCSS for quick and maintainable design;
- proper management of color schemes, spacing, and content hierarchy.
Result: a neat and modern page, ready for integration with any frontend framework or CMS.
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300 USD Vertex - MVP for a digital agency
Javascript and Typescript
Technologies: React, TypeScript, TailwindCSS, GSAP, Framer Motion, Lenis, Motion One, Lucide
The site is implemented as a modern one-page landing with a focus on animations, smoothness, and ease of content perception.
- layout using TailwindCSS with tailwindcss-animate;
… - integration of animation libraries (GSAP, Framer Motion, Motion One, Lenis) to create interactive and engaging transitions;
- clean component structure with React + TypeScript;
- rendering optimization and responsiveness for various screens.
Result: a lightweight, aesthetic MVP demonstrating mastery in combining modern technologies and classical approaches to quality.
Reviews and compliments on completed projects 4
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Real expert -
Craft master -
Quick answers -
First-class quality -
Nice communication -
High responsibility -
Great price -
Lightning fast
23 June
20 USD
Technical consultation / Project audit
Thank you for the cooperation. Everything went quickly.
16 June
214 USD
Kadmoo
great work Excellent job! Quickly figured out the problem and fixed everything. The code is clean, everything works perfectly. I recommend as an excellent specialist!
8 June
25 USD
Test task and introduction: Full-Stack (Next.js / Supabase)
10xGreat job! The code is written well, structured, and delivered on time. The freelancer quickly understood the task and implemented everything exactly as required.
3 September 2025
22 USD
Create a technical specification for changing the website design.
I am satisfied with the work done by Tatiana. The work was completed as described in the task. The result is clear, correct, everything is described accurately. And also, it was done faster than the required deadline.
Activity
| Projects underway 1 | Budget | Added | Deadlines | Proposal | |
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Kadmoo
220 USD
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| Latest proposals 10 | Budget | Added | Deadlines | Proposal | |
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Kadmoo
220 USD
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Technical consultation / Project audit
20 USD
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Freelance project
20 USD
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Kadmoo
214 USD
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Freelance project
45 USD
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Test task and introduction: Full-Stack (Next.js / Supabase)
25 USD
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Freelance project
56 USD
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Freelance project
700 USD
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