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Igor K.Status: Offline
Igor K. Igor K.
4.9
Top Rated

Let a pro handle the details

Buy Web Application Programming services from Igor, priced and ready to go.
Igor K.Status: Offline
Igor K. Igor K.
4.9
Top Rated

Let a pro handle the details

Buy Web Application Programming services from Igor, priced and ready to go.

Project details

We start every project with a free intro call to understand your goals, agree on scope, and confirm the timeline and cost together. No surprises, no wasted time.

After the first intro call, we confirm: Project Duration, Cost, and Milestones.

How we work:

1. Intro call
2. Discovery Phase
3. Development And Design Phase
4. Handoff Phase

Starting from zero? No problem. We cover the full path, from architecture and database design to frontend, backend, IoT integrations, and deployment. No brief, no docs, no prepared materials needed — we handle all of that so you can focus on your product, not the process.

This Service is Best for:
— Multi-tenant SaaS platforms with complex dashboards
— Smart home and IoT device management systems
— B2B platforms with role-based access and admin panels
— Energy, facility, and building management software
— Early-stage startups building their first scalable product

We have hands-on experience building multi-tenant SaaS and IoT platforms. We understand the real challenges of real-time data sync, device communication, scalable architecture, and keeping complex dashboards simple enough for everyday users.

We care about your product!
Programming Languages
HTML & CSS, JavaScript, TypeScript
Coding Expertise
Localization, Security, Design
What's included
Service Tiers Starter
$10,000
Standard
$20,000
Advanced
$45,000
Delivery Time 20 days 40 days 70 days
Number of Revisions
4UnlimitedUnlimited
Number of Pages
5820
Design Customization
-
Content Upload
Responsive Design
-
Source Code
Optional add-ons You can add these on the next page.
Fast Delivery
+$2,000 - $5,000
4.9
7 reviews
86% Complete
14% Complete
1% Complete
(0)
1% Complete
(0)
1% Complete
(0)

BC

Brendan C.
4.00
Dec 11, 2025
JS Website turning submissions into a graphic display

JO

John O.
5.00
Dec 10, 2025
Senior Developer & Code Auditor for Next.js and Firebase Project

AB

Aaron B.
5.00
May 30, 2025
Micro-SaaS Feature Addition

FB

Florian B.
5.00
May 14, 2025
Evaluation of Internal Web App for Automating Project Documentation (PDF Reports, complex) Igor and is Team did a great job with this!

RK

Ron K.
5.00
Feb 4, 2025
Strapi CMS Expert for AI Automation Igor and the Perfsol team are excellent
We have worked with them on multiple complex projects and they always deliver amazing results.
they are technically very experienced and work great as part of complex dev teams
Igor K.Status: Offline

About Igor

Igor K.Status: Offline
Full Stack Developer
100% Job Success
4.9  (7 reviews)
Kyiv, Ukraine - 12:30 am local time
✅ Top-Rated Plus on Upwork
✅ 100% Job Success Score
✅ 50+ SaaS Projects Delivered

𝗔𝗩𝗔𝗜𝗟𝗔𝗕𝗟𝗘 𝗧𝗢 𝗦𝗧𝗔𝗥𝗧 𝗧𝗢𝗗𝗔𝗬! 🧩 Updated daily. 🧩 Fast delivery. 🧩 Flexible engagement. 🧩Production-ready code. 🧩 Scalable architecture. 🧩 Personalized approach to each project.

𝗢𝗩𝗘𝗥𝗩𝗜𝗘𝗪
🏆 7+ years of experience as a Full Stack Developer and SaaS Engineer
🏆 50+ products delivered, web apps, SaaS platforms, AI systems, and enterprise tools
🏆 Strong background in multi-tenant SaaS, dashboards, AI integrations, and complex business logic
🏆 Expert in Node.js, Python, React, Next.js, PostgreSQL, and AI APIs
🏆 Always deliver production-ready, scalable, and maintainable code
🏆 Final delivery includes clean architecture, documentation, and deployment

𝗔𝗕𝗢𝗨𝗧 𝗠𝗘
👋 I'm a Senior Full Stack Developer at Indeema, a full-cycle software and AI development agency trusted by startups, scale-ups, and enterprise teams.
💚 My best clients include Urban Dictionary, NOKIA, AWS, STADLER, FuboTV, Riverside.

Drop me a message with "𝗙𝗨𝗟𝗟 𝗦𝗧𝗔𝗖𝗞" we'll run a free discovery call and create a clear step-by-step plan without making expensive mistakes.

𝗪𝗛𝗔𝗧 𝗠𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗦𝗔𝗬
⭐⭐⭐⭐⭐ "Igor delivered exactly what we needed — clean code, clear communication, and on time. Will definitely work with him again." — Long-term client, Upwork

⭐⭐⭐⭐⭐⭐ "Outstanding Full Stack Developer. He took full ownership of the project, suggested smart architecture decisions, and delivered a production-ready platform we're proud of." — SaaS client, Upwork

𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗬 𝗘𝗫𝗣𝗘𝗥𝗜𝗘𝗡𝗖𝗘
⚡ Healthcare: HIPAA-compliant platforms, remote patient monitoring, clinical dashboards, medical IoT
⚡ FinTech: Multi-tenant financial SaaS, AI-driven analytics, real-time data pipelines
⚡ Real Estate: AI-powered property platforms, automated workflows, market intelligence
⚡ HoReCa: Restaurant and hotel management SaaS used by 50+ businesses across the UAE
⚡ Logistics: Operational tracking, fleet management, backend automation
⚡ B2B & B2C: Enterprise internal tools and consumer-facing web applications

𝗪𝗛𝗬 𝗖𝗛𝗢𝗢𝗦𝗘 𝗠𝗘
🔎 Multi-tenant SaaS platforms built to scale from day one
🔎 AI integrations that ship to production, not just demos
🔎 Frontend and backend owned end-to-end — no handoff delays
🔎 Complex multi-role workflows, permission systems, and business logic
🔎 Clean API design and solid data modeling in Node.js and Python
🔎 A reliable senior partner, not a vendor who disappears after launch

𝗡𝗨𝗠𝗕𝗘𝗥𝗦 𝗧𝗛𝗔𝗧 𝗠𝗔𝗧𝗧𝗘𝗥
🚀 7+ years building production-ready SaaS and AI systems
🚀 50+ products delivered from MVP to enterprise scale
🚀 Consistently 5-star client reviews
🚀 100% Job Success Score

𝗧𝗘𝗖𝗛 𝗦𝗧𝗔𝗖𝗞
📝 Frontend: React, Next.js, TypeScript, Tailwind
📝 Backend: Node.js, Python, FastAPI, REST, GraphQL
📝 Databases: PostgreSQL, Supabase, MongoDB
📝 AI: Claude API, OpenAI, LangChain, RAG pipelines
📝 DevOps: AWS, Docker, CI/CD, GitHub Actions
📝 Tools: Jira, GitHub, Copilot, Figma

𝗞𝗘𝗬𝗪𝗢𝗥𝗗𝗦
Full Stack Developer, SaaS Developer, Node.js, Python, React, Next.js, MERN Stack, PostgreSQL, Supabase, REST API, GraphQL, AI Integration, OpenAI, Claude API, LangChain, RAG, Multi-tenant SaaS, Dashboard Development, HIPAA, FinTech, HealthTech, Real Estate, B2B SaaS, MVP Development, Enterprise Software, Web Application, Mobile App, Backend Developer, Frontend Developer, AI Developer

Updated: 10.06.2026

Steps for completing your project

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

Delivery time starts when Igor receives requirements from you.

Igor works on your project following the steps below.

Revisions may occur after the delivery date.

Intro call

Define goals, core features, tech stack, and integration requirements

Discovery

Mapping out data architecture, user roles, and system logic before writing a single line of code

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