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Denis S.
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Denis S.

Full stack developer | AI Development & Integration | AI Driven

๐๐ซ๐ข๐ง๐  ๐ข๐ง ๐ฒ๐จ๐ฎ๐ซ ๐ฉ๐ซ๐จ๐ญ๐จ๐ญ๐ฒ๐ฉ๐ž ๐›๐ฎ๐ข๐ฅ๐ญ ๐ฐ๐ข๐ญ๐ก ๐€๐ˆ ๐š๐ง๐ ๐ˆ'๐ฅ๐ฅ ๐ญ๐ฎ๐ซ๐ง ๐ข๐ญ ๐ข๐ง๐ญ๐จ ๐š ๐ฉ๐ซ๐จ๐Ÿ๐ข๐ญ๐š๐›๐ฅ๐ž ๐ฉ๐ซ๐จ๐๐ฎ๐œ๐ญ๐ข๐จ๐ง ๐ฌ๐จ๐ฅ๐ฎ๐ญ๐ข๐จ๐ง! ๐ˆ๐Ÿ ๐ฒ๐จ๐ฎ'๐ซ๐ž ๐ง๐จ๐ญ ๐ฌ๐ฎ๐ซ๐ž ๐š๐›๐จ๐ฎ๐ญ ๐ฒ๐จ๐ฎ๐ซ ๐ข๐๐ž๐š, ๐ฃ๐ฎ๐ฌ๐ญ ๐ฌ๐ž๐ง๐ ๐ฆ๐ž ๐ฒ๐จ๐ฎ๐ซ ๐›๐š๐ฌ๐ข๐œ ๐ฌ๐ฉ๐ž๐œ๐ฌ ๐จ๐ซ ๐‘๐…๐, ๐š๐ง๐ ๐ˆ'๐ฅ๐ฅ ๐ญ๐ฎ๐ซ๐ง ๐ข๐ญ ๐ข๐ง๐ญ๐จ ๐š๐ง ๐€๐ˆ ๐ฉ๐ซ๐จ๐ญ๐จ๐ญ๐ฒ๐ฉ๐ž ๐ฐ๐ข๐ญ๐ก๐ข๐ง ๐Ÿ‘๐ŸŽ ๐ฆ๐ข๐ง๐ฎ๐ญ๐ž๐ฌ ๐š๐ญ ๐ง๐จ ๐œ๐ก๐š๐ซ๐ ๐ž. ๐…๐จ๐ซ ๐ฆ๐ž, ๐ข๐ญ'๐ฌ ๐ฃ๐ฎ๐ฌ๐ญ ๐Ÿ‘๐ŸŽ ๐ฆ๐ข๐ง๐ฎ๐ญ๐ž๐ฌ ๐จ๐Ÿ ๐ฐ๐จ๐ซ๐ค. ๐…๐จ๐ซ ๐ฒ๐จ๐ฎ, ๐ข๐ญ'๐ฌ ๐š ๐ ๐ซ๐ž๐š๐ญ ๐ฐ๐š๐ฒ ๐ญ๐จ ๐ฏ๐š๐ฅ๐ข๐๐š๐ญ๐ž ๐ฒ๐จ๐ฎ๐ซ ๐ข๐๐ž๐š ๐›๐ž๐Ÿ๐จ๐ซ๐ž ๐ข๐ง๐ฏ๐ž๐ฌ๐ญ๐ข๐ง๐  ๐Ÿ๐ฎ๐ซ๐ญ๐ก๐ž๐ซ. I'm an AI Product Engineer with a focus on helping startups and businesses leverage AI and adapt to the modern software industry, which is now more accessible than ever. That includes full-stack development, AI automation, AI integration, prototyping, custom development, and, of course, taking over what you've already built and turning it into a production-grade solution. ๐Ÿ” ๐—ž๐—ฒ๐˜† ๐—ฆ๐—ฒ๐—ฟ๐˜ƒ๐—ถ๐—ฐ๐—ฒ๐˜€: 1. AI Automation: streamlining workflows and business processes with AI 2. AI Prototyping: building fast, working proof-of-concepts to validate ideas 3. AI Hardening: taking over existing solutions and bringing them into production 4. Full-Stack Development: end-to-end product development, from frontend to backend ๐ŸŒ  My background is in custom software development, and I spent a while working as a hands-on engineer. I was lucky enough to spend my entire career working with fast-growing, large-scale, and enterprise clients, representing an outsourcing vendor. ๐ŸŒŒ Apart from development activities, I was engaged in many others: interviewing engineers, participating in pre-sales, training programs, leading and driving development processes, and much more. I was always a company guy and was interested in and open to everything. ๐Ÿ‘ด๐Ÿป Thatโ€™s where I matured as an engineer. I learned a lot along the way, saw how painful the software development process could be, and understood the pros and cons of different organizations, including where Fortune 100 companies struggle. ๐Ÿ“บ Iโ€™m a professional engineer focused on delivering business outcomes for you โ€” not a part-time freelancer juggling Upwork with a full-time job or doing it for extra income. I'm working with all types of clients and budgets. โœ… 99% Job Success Score; 100 + projects delivered โ€” from idea to production-ready software ๐Ÿ›ก Expert-Vetted โ€” interviewed and approved by the Upwork team ๐Ÿš€ Fastest-Growing Upwork Profile Globally โ€” $4M+ earned across multiple profiles since 2022 ๐ŸŒ Most Recognized & Viewed Upwork Profile Worldwide ๐Ÿ’ฐ Scaled 5 Upwork Profiles to $300K+ revenue each with strong inbound leads ๐Ÿข Delivered Projects for Fortune 100 & Inc. 5000 Companies and UAE government ๐Ÿง  Led Pre-Sales, Estimations, Code Reviews & Tech Interviews for top-tier clients ๐Ÿ’ป Even if we donโ€™t end up working together, Iโ€™ll help you identify risks and guide you on how to make the product happen โ€” because in the end, itโ€™s all about mindset, not just coding skills. ๐Ÿ’ก Answering a question how am I different in this competitive AI industry โ€” the answer is simple: mindset. You can learn endless frameworks, libraries, languages โ€” alright, cool, but mindset and deep understanding of this world outside and inside the industry is what really makes a difference. ๐Š๐ž๐ฒ๐ฐ๐จ๐ซ๐๐ฌ: Authentication, OAuth, SSO, JWT, Role-Based Access Control, Multi-Tenant Architecture, User Management, Admin Dashboard, Admin Panel, Stripe Integration, Payment Integration, Payment Gateway Integration, Subscription Management, Subscription Billing, Analytics Dashboard, Data Visualization, Reporting, Notification System, Email Integration, File Upload, Search Functionality, Internationalization (i18n), Audit Logs, Onboarding Flow

๐Ÿ‡บ๐Ÿ‡ฆKharkiv, Ukraine$30/hr100% JSS4.99 (60)Since Nov 2021
MRR
$27,594
๐ŸŒ#80/363K
๐Ÿ‡บ๐Ÿ‡ฆ#6/12.9K
Recent Earnings
$166K
๐ŸŒ#80/363K
๐Ÿ‡บ๐Ÿ‡ฆ#6/12.9K
Total Earnings
$1.22M
๐ŸŒ#324/363K
๐Ÿ‡บ๐Ÿ‡ฆ#25/12.9K
Avg. Per Project
$10,137
๐ŸŒ#14.6K/363K
๐Ÿ‡บ๐Ÿ‡ฆ#1,059/12.9K
Recent Projects
24
17f7h
๐ŸŒ#20.4K/363K
๐Ÿ‡บ๐Ÿ‡ฆ#925/12.9K
Total Projects
120
100f37h
๐ŸŒ#20.4K/363K
๐Ÿ‡บ๐Ÿ‡ฆ#925/12.9K
MRR Performance Over Time
$50k$25k$0
6 mo ago3 mo agoNow
Coming SoonGathering historical data
World Skill Rankings
of 3,224
#1
NestJSTop <0.01%
#2CSS
#2HTML5
#2MongoDB
#2CSS 3
#4MySQL
#4Vue.js
#5Software Development
#6Next.js
#7HTML
#7TypeScript
#8Full-Stack Development
#10PHP
#11Laravel
#12Web Development
#13React Native
#14JavaScript
#15Node.js
#15Python
#16React
๐Ÿ‡บ๐Ÿ‡ฆUkraine Skill Rankings
of 905
#1
MySQLTop <0.01%
#1CSS
#1HTML5
#1MongoDB
#1React Native
#1CSS 3
#1NestJS
#2Vue.js
#2HTML
#2TypeScript
#2Software Development
#2Web Development
#2Next.js
#3React
#3PHP
#3Node.js
#3Laravel
#3Python
#3Full-Stack Development
#4JavaScript
Denis S. โ€” #6 in Ukraine | UpworkMRR