Main skills:
Frontend: HTML/CSS(SCSS)/js(jquery/Vue/React(next))
Backend PHP: PHP/PHP(Wp+Wooccommerce)
Backend Python: Python/Python(Django, Flask, FastAPI)
DevOps: Ansible, Kubernetes, Terraform, Google Cloud Platform, GitLab, VictoriaMetrics, Grafana, Prometheus, CI/CD
Design: UI/UX, Figma, Photoshop
Other skills:
AI frameworks: Tensorflow, PyTorch, Keras
Development of bots for Telegram, Viber, WhatsApp, Instagram
Parsers: Selenium, Scrapy, bs4
Message Brokers: RabbitMQ, Kafka
R: RStudio, Shiny, dplyr, httr, RCurl, DT, cronR, Sockets, leaflet etc
Operating Systems: Linux(Ubuntu), Windows
DBMS: MySQL, PostgreSQL, MongoDB, Redis
Tools: Celery, RabbitMQ, Docker, Jira, OpenCV, Numpy, Matplotlib,
Scipy, Pandas, Apache Spark, SciPy, Subprocess, Websockets, aiohttp, asyncio, REST API, SOAP, Docker, GIT, SVN
Industry Knowledge: Math, Statistics, Probability theory, Decision Theory
HTML
gulp
WordPress
Bootstrap
SCSS
jQuery
Responsive Design
CSS
PHP
Python
Django
CodeIgniter
BEM
Raman A.
Vilnius, Lithuania
$35/hr
4.9
84 jobs
I am also hiring on Upwork and getting 50+ "individuals" applications, and lucky 5 from them are shortlisted. Here from 2013, i've been earned some reputation and know the cost. Running transparent agency, have empathy and listen before suggesting
Text for Uma:
7+ years and 30+ products delivered as a Full Stack Developer React Node specializing in SaaS platforms, MVPs, AI-powered apps, and e-commerce web development.
$1.4M+ client impact and $650K+ direct revenue generated as a React Nextjs Developer building production-grade Next.js React applications.
18,000+ active users across web and mobile products, where React Typescript development with Cursor and Supabase lifted engagement by 15–25%.
8,000+ users on a Django SaaS and Next.js SaaS platform, where backend Python developer and full stack developer Django work cut operational overhead by 35%.
2,100+ completed orders, 450+ registered customers on an E-commerce Web Developer build using React Next.js and Postgresql Supabase Javascript Rest Json architecture.
85% faster processing, 75% lower manual workload through backend Node.js and AI API integration work as a Backend Developer Nodejs.
1,500+ catalog items, multi-role access, 2.5x operational capacity on a Full Stack Developer CRM system built with the MERN Stack.
4-7 weeks shorter MVP-to-launch cycles, 30% fewer bugs through Full Stack Developer Saas rebuilds and codebase modernization.
$800K+ in client revenue as a react javascript developer and next.js supabase specialist.
$3.2M+ client impact, end-to-end ownership as a Senior Full Stack Developer and Full-Stack Software Engineer.
15-25% engagement lift and stronger retention as a Frontend React UI Developer.
25-35% faster delivery cycles, cleaner UX, and stronger retention across SaaS platform products as a React Senior Developer.
Where I deliver:
As a Frontend React Developer - 18+ systems covering UI/UX, dashboard builds, and responsive UI development across SaaS Platforms, Booking Platforms, and E-commerce Websites.
As a React Nextjs Developer - 12+ launches in Next.js SaaS environments, 25–35% faster iteration through design-to-code and component development.
As a Full Stack Developer React Node - 22+ end-to-end builds covering backend API development, data architecture, and secure, scalable systems from early-stage MVP to live SaaS platform.
As a Full Stack Web Developer - website design, website development, and app development improving conversion by 12–20%.
As a React Native Developer - 8+ deployed mobile apps on the App Store and Google Play, using React Native AI integrations for smarter mobile experiences.
As a Backend Developer - 10+ backend-heavy products with 25% lower delivery risk using Node.js and Supabase Backend architecture.
As a Supabase Cursor developer - 98%+ delivery consistency across distributed teams using Cursor and Supabase as a core workflow.
Domains
Marketplace Platform, B2B Marketplace - 40,000+ active listings, 18%+ better lead quality, and a 30% increase in conversions as a React Developer and Full Stack Developer React Node handling $1.5M+ in monthly transaction volume.
AI Developer - 4+ products deployed, including AI Agent Platforms and RAG Chatbots using OpenAI, Claude API, and FastAPI as an AI Developer and Full Stack Developer React Node, processing 12,000+ daily prompts and cutting manual query resolution time by 35%.
E-commerce Web Developer - 2,000+ orders processed, 30% faster checkout flow, and 20% higher repeat purchase rate through Next.js Supabase architecture.
Real Estate Platform, PropTech SaaS - 6,000+ property listings managed, 40% faster property search and filtering, and a 25% increase in qualified buyer leads as a Full Stack Developer building a Real Estate Web Developer platform with map-based search, virtual tours, and Next.js Supabase architecture.
Fintech MVP, LegalTech SaaS - 15% better adoption, 35% higher user retention over 6 months, and structured permissions managing 3 access levels for 4,000+ users as a React Typescript and Full Stack Developer Saas specialist.
Technologies I use:
Frontend: React, React.js, React Native Mobile, Next.js React, React Typescript, JavaScript, TypeScript, HTML5, CSS3, Tailwind CSS, Responsive Design, jQuery - as a Javascript Developer and React UI Developer.
Backend: Node.js, Django, Python, Supabase Backend, Postgresql Supabase Javascript Rest Json, MySQL, MongoDB, Firebase, Stripe - as a Backend Developer Nodejs and full stack developer Python.
AI & Integrations: AI Application Development, AI API Integration, AI LLM tooling, OpenAI, Claude API, Cursor, React Native AI - as an AI Developer building production AI features end to end.
Ecosystems: MERN Stack Developer, Django SaaS, Next.js Supabase, WordPress, Shopify, PHP, Flask, Vue.js - as a Full Stack Web Developer and Full-Stack Developer across diverse tech stacks.
Tooling: Git, Software Architecture & Design, Cursor, Supabase, CI/CD workflows - engineering mindset across 35+ shipped products.
Full-Stack Development
Python
HTML
CSS
JavaScript
PHP
React
Node.js
Front-End Development
CSS 3
React Native
TypeScript
Web Design
Laravel
WordPress
Vercel
MongoDB
Vue.js
HTML5
SQL
Yauheni R.
Vilnius, Lithuania
$23/hr
5.0
1 jobs
Experienced software engineer (development of web-services)
Specialties: Python, Django, Asyncio, Postgres, RabbitMQ, Docker,
OpenAPI/Arazzo
Significant experience in creating microservices within highload
projects, API design. Their maintenance, monitoring, deployment.
Develop and implement robotic systems for end-to-end test generation that collect domain knowledge for LLM integration and validate high-level compliance.
Additional experience: frontend development (html, javascript,
Vue.js), AI/ML/CV (TensorFlow, Keras)
Artificial Intelligence
Web Application
Web Development
Python
Django
Vue.js
JavaScript
TensorFlow
CV
Machine Learning
Vasily K.
Vilnius, Lithuania
$30/hr
4.8
7 jobs
👋 Hi, I am an Oracle Certified full-stack Java developer with 10+ years of experience in software development.
🚀 What I Offer:
✔️ Expert in Java and full-stack development, from backend to frontend
✔️ High-quality, scalable, and maintainable code
✔️ Great communication, proactiveness, and attention to detail
✔️ Ability to work independently or as part of a team
💡 Need help with a Java-related project? Let’s build something amazing together!
Tech Stack:
💻 Programming Languages:
Java | TypeScript | JavaScript
🖥️ Frontend:
Angular | Jasmine | Playwright
⚙️ Backend:
Spring Boot | Spring Framework (Spring MVC, Spring Security, Spring Data etc.) | Java EE (JSP, JSF, EJB, JPA) | Hibernate | JUnit | Spock Framework | Testcontainers | Mockito
🖥️ Desktop Applications:
JavaFX
🗄️ Databases:
MongoDB | PostgreSQL | Oracle Database | MSSQL | MySQL
🚀 DevOps & CI/CD:
Docker | Docker Compose | Kubernetes | Jenkins | SonarQube
📡 Protocols & APIs:
HTTP, HTTPS, SFTP, SSH | REST, SOAP | AMQP
🛠️ Build Tools:
Maven | Gradle | Ant
📩 Let's connect! I’d love to discuss how I can contribute to your project.
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