Upwork home
Sign up
Project Catalog
DesignDesign
Video & AudioVideo & Audio
Development & ITDevelopment & IT
MarketingMarketing
Writing & TranslationWriting & Translation
MoreMore

You will get Full Stack Developer | Web Developer Consultation

Alina S.Status: Offline
Alina S. Alina S.
5.0
Rising Talent
Preview imagePreview imagePreview imagePreview image

Let a pro handle the details

Buy Custom Website Programming services from Alina, priced and ready to go.
Alina S.Status: Offline
Alina S. Alina S.
5.0
Rising Talent
Preview imagePreview imagePreview imagePreview image

Let a pro handle the details

Buy Custom Website Programming services from Alina, priced and ready to go.

Project details

Our consultation analyzes your idea to provide a precise plan, quote, and timeline. Because we cover all aspects of full stack development, your vision is reviewed by the exact experts your product demands.

Whether you need a lead Full Stack Developer, a versatile full stack web developer, or a dedicated mobile app developer, we match your needs with the right talent.

Depending on your tech, your evaluation may involve a python full stack developer or full stack developer ai for smart integrations, a react developer or full stack developer react for dynamic interfaces, and a wordpress developer or full stack wordpress developer for CMS solutions.

Guided by an expert web developer team, you'll confidently plan your full stack web project's time and cost.
Programming Languages
JavaScript, Ruby/Ruby on Rails, Kotlin
Coding Expertise
Cross Browser & Device Compatibility, Performance Optimization, Security

What's included $70

These options are included with the project scope.

$70
  • Delivery Time 2 days
  • Number of Revisions 0
5.0
14 reviews
100% Complete
(14)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)

AT

Artem T.
5.00
May 12, 2026
Full Stack Developer Needed for Mobile Application Development Working with Alina and her team was an enjoyable experience. They met every requirement and maintained excellent communication throughout the process. They deliver high-quality work with impressive speed. Truly a team of professionals.

AW

Alan W.
5.00
Dec 1, 2021
Keyhelpa's architecture and work scope development Top service and quality of work.

AW

Alan W.
5.00
Oct 25, 2021
Freelancer platform for agents and helpa's Absolutely professionals

AN

Ariel N.
5.00
Aug 17, 2021
MVP - PM and QA Alina was great and supportive. Building the MVP she provided the exact skills needed in order to make sure we don’t have lose ends between the design and execution. Great great job!

ON

Oleg N.
5.00
Apr 18, 2021
1 Senior Backend, 1 Senior Frontend & 1 react native needed Thanks for our fruitful collaboration, it is a challenging project however Hygge software team handled very complex tasks and was always responsive during the work.
Alina S.Status: Offline

About Alina

Alina S.Status: Offline
Full Stack Developer React Developer Mobile App Developer Full Stack
100% Job Success
5.0  (14 reviews)
Kharkiv, Ukraine - 3:40 am local time
👋 Hi there, I'm Alina! I'm a Full Stack Developer, web developer, and mobile app developer with 9+ years of commercial experience in software engineering, helping companies build scalable, secure, and high-performing digital products. My work follows ISO 9001 and ISO 27001 security standards, ensuring enterprise-level reliability.

With 180+ successful projects and 20,000+ development hours, I specialize in complex Web and Mobile Application development, AI integrations, and cloud architecture. As a dedicated Full Stack Developer and Python Full Stack Developer, I help businesses automate workflows, optimize performance, and scale products using React, Node.js, Python, and AWS. Whether you need a skilled react developer or a versatile wordpress developer, I bring the technical expertise to deliver reliable systems.

🏆 Web Developer & Full Stack Developer Solutions:
✔️ 9+ years of experience as a Full Stack Developer building scalable web platforms, SaaS products, and AI-driven applications.
✔️ 180+ high-performance projects across eCommerce, SaaS, healthcare, fintech, and enterprise systems delivered as a Full Stack Developer AI specialist.
✔️ 20,000+ engineering hours as a Full Stack Developer, software engineer, and AI integrator.
✔️ Global experience across 40+ countries including the US, UK, Western Europe, and Australia.
✔️ Development speed increased by 60–70% using AI-assisted engineering workflows.
✔️ Backend and database optimization improving performance by up to 60%.
✔️ AI automation systems reducing manual operational work by up to 85%.
✔️ Cloud infrastructure improvements enabling 45% more concurrent users with reduced AWS costs.

📌 AI Systems & Automation:
🔹 Custom LLM and RAG architectures built with Python, LangChain, and vector databases by a Python Full Stack Developer.
🔹 AI chatbots and automation agents improving operational efficiency for SaaS and enterprise systems, delivered by a Full Stack Developer AI.
🔹 AI-assisted QA workflows reducing manual testing costs by 70%.
🔹 Model-agnostic LLM routing using OpenAI, Claude, and Gemini.

📌 Custom Web Development:
🔹 SaaS platforms built with Next.js, React, Node.js, and NestJS by an expert react developer and Full Stack Developer.
🔹 Secure web applications designed by an experienced web developer following ISO security standards.
🔹 Rapid MVP development using AI-first engineering approaches.
🔹 Custom CMS and scalable platforms implemented by a skilled wordpress developer.

📌 Backend Architecture & Cloud Infrastructure:
🔹 High-performance cloud architecture using AWS, Docker, and modern DevOps practices.
🔹 Database optimization with PostgreSQL and Supabase improving query speeds by 60%.
🔹 Microservices and CI/CD pipelines increasing system scalability.
🔹 Automated billing and internal automation systems built by a Python Full Stack Developer.

📌 Mobile & Cross-Platform Applications:
🔹 Cross-platform mobile applications using React Native and Flutter.
🔹 Backend-to-mobile data synchronization reducing latency and improving UX.
🔹 AI-powered recommendations and secure payment integrations.

📌 Scalable Architecture & System Optimization:
🔹 High-availability cloud infrastructure for scalable applications.
🔹 Advanced dashboards and admin panels using React, Tailwind, and modern UI frameworks.
🔹 Server-side rendering and caching strategies improving performance and scalability.

✅ 60–70% faster development through AI-assisted engineering workflows.
✅ ISO 9001 & ISO 27001 aligned development standards.
✅ 30% lower server costs through optimized backend architecture.
✅ Advanced AI integrations (GPT, Claude, LangChain) delivered by a Full Stack Developer AI.
✅ Rapid MVP delivery in 2–3 months by an experienced Full Stack Developer, react developer, and web developer.

Looking for a Full Stack Developer | Full Stack Developer AI | Python Full Stack Developer who can design scalable systems, build reliable architecture, and turn ideas into production-ready products?

Let’s connect! ☎️

03.06.2026

Steps for completing your project

After purchasing the project, send requirements so Alina can start the project.

Delivery time starts when Alina receives requirements from you.

Alina works on your project following the steps below.

Revisions may occur after the delivery date.

Discovery & Pre-Sale

We're gathering your specific requirements, and designing a clear technical blueprint.

Review the work, release payment, and leave feedback to Alina.