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You will get a web app of any technical complexity
Top Rated
Project details
You will receive your own web application, which is a great investment for any company. Working with me, you should expect that in the end you will get a secure and stylish web application with high loading and working speed. I can also optimize the app for mobile devices.
The domain does not play a big role. I have experience in developing web applications in the field of healthcare, fintech, education, banking and insurance, multimedia and entertainment, etc.
The domain does not play a big role. I have experience in developing web applications in the field of healthcare, fintech, education, banking and insurance, multimedia and entertainment, etc.
Programming Languages
PHP, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included $5,000
These options are included with the project scope.
$5,000
- Delivery Time 60 days
- Number of Revisions Unlimited
- Design Customization
- Responsive Design
- Source Code
Frequently asked questions
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JL
Jakub L.
Sep 10, 2025
Senior Front-End Engineer (NextJS) - 40hr/week, ready to start now
Was amazing to work with Alexey, work was completed to a high standard and he integrated with our team very well. One of the best freelancers I have worked with in the past year!
GA
Guido A.
Jul 23, 2024
Experienced React, Tailwind, Next.JS developer needed
Great to work with Alex and his team, super-focused and pro-active. Great experience! We will work again for sure!
GA
Guido A.
May 16, 2024
Experienced React, Tailwind, Next.JS developer needed
Alexey is an excellent professional who offers important insights and valuable suggestions. It has been a pleasure working with him; he handled tasks swiftly and delivered the work efficiently. We will definitely work together again in the future.
DS
Daniele S.
Aug 9, 2022
Backend Developer for SaaS e-commerce platform
DS
Daniele S.
Jun 27, 2022
Backend Developer for SaaS e-commerce platform
Everything was completed with high professionalism.
Code quality was outstanding, and he and his team met deadlines.
Nothing else to add; superior work!
Code quality was outstanding, and he and his team met deadlines.
Nothing else to add; superior work!
About Alexey
Principal Engineer & Engineering Manager | 15+ yrs | AI | Full-Stack
100%
Job Success
Warsaw, Poland - 12:44 pm local time
I turn ambiguous goals into shipped software. From discovery and architecture to delivery and operations, I set clear SLAs, align stakeholders, and stay hands-on where it matters most: critical paths, performance, AI integrations, production incidents. I’ve built teams from zero to scale and contributed to products that later surpassed $100M+ in value. Known for clear communication, predictable timelines, and long-term partnerships.
AI is a core part of my work: LLM features, RAG, and agentic workflows with evaluation, guardrails, and explicit latency/cost KPIs. In LegalTech, I’ve delivered document intelligence, contract review flows, secure workflows with RBAC and audit trails, and compliance-ready delivery.
How I engage: Fractional CTO or Principal IC to design the architecture and roadmap, hire and coach, and lead execution. We can start small with a focused audit or MVP and scale the team through my Fively network when needed.
Stack snapshot: Node.js/TypeScript, React/Next.js, PostgreSQL/pgvector, Redis, Kafka, Docker/Kubernetes, AWS; Python/FastAPI for AI; LangChain/LangGraph/LlamaIndex, Pinecone/Qdrant, Langfuse, MLflow/W&B.
Credentials: Master’s in CS, Zend PHP Certified, Node.js JSNAD.
If you need leadership that can lead, ship, and scale - let’s talk.
Steps for completing your project
After purchasing the project, send requirements so Alexey can start the project.
Delivery time starts when Alexey receives requirements from you.
Alexey works on your project following the steps below.
Revisions may occur after the delivery date.
We are calling up to discuss your ideas for the application.
I am preparing designs and the roadmap.