Denis S.
FreelancerTop Rated PlusAI Product Engineer | AI Prototype to Production | React, Node, LLM
Member since 2021 · 100% Job Success
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WorldTop 0.01%
UkraineTop 0.02%
ReactTop 0.03%
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upworkrank#15in React · Top 0.03%Share this rank
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$32k
MRR
est. monthly
#60
World rank
of 1,140,389
$0
Lifetime earnings
since 2021
140
Total jobs
completed
About
🌟 The most recognized profile on an Upwork.
Bring me your AI-built prototype, and I will turn it into a reliable product that earns money.
I help startups and businesses build AI products and take existing ones to production. Many teams now have a working prototype made with AI tools, but it is not ready for real users, real data or growth. That is the gap I close.
𝗪𝗛𝗔𝗧 𝗜 𝗗𝗢:
- AI prototype to production: I take over your code, fix the architecture, add security, testing and monitoring, and launch it.
- AI products and integrations: LLM features, AI agents, RAG, voice agents, connected to your systems.
- AI automation: workflows and business processes that run with less manual work.
- Full-stack development: web and mobile products, React, Node.js, React Native, cloud.
𝗛𝗢𝗪 𝗜 𝗪𝗢𝗥𝗞:
- Fixed price, split into clear milestones. You know the cost and the result before we start.
- A working prototype before the contract, so you see the direction early.
- A senior team behind me: design, engineering and QA. You talk to me directly.
𝗥𝗘𝗖𝗘𝗡𝗧 𝗪𝗢𝗥𝗞:
- A SaaS platform for private equity funds to manage subscription credit facilities.
- A self-serve ad campaign platform across several ad networks for an agency in Saudi Arabia.
- A cashback and rewards mobile app for a US grocery group, in active development since 2023.
- A psychometric assessment platform for a government-linked client in the UAE.
- AI voice agents, document processing and AI assistants for clients in the US, Europe and the Middle East.
𝗪𝗛𝗬 𝗖𝗟𝗜𝗘𝗡𝗧𝗦 𝗖𝗛𝗢𝗢𝗦𝗘 𝗠𝗘:
- 100% Job Success, Expert-Vetted, $1M+ earned on this profile, 120+ projects.
- Many years in custom software for fast-growing companies and Fortune 100 clients, as an engineer, technical lead and pre-sales lead.
- I look at the business first. Before writing code, I check whether the plan makes sense and where the risks are.
𝗙𝗥𝗘𝗘 𝗔𝗜 𝗣𝗥𝗢𝗧𝗢𝗧𝗬𝗣𝗘:
Send me your idea, basic specs or RFP. I will turn it into a clickable AI prototype within 30 minutes at no cost. You get a fast way to check the idea before you invest more. Even if we do not work together, I will tell you the main risks and how to approach the build.
Rankings
Where Denis S. ranks by monthly revenue, worldwide, in Ukraine, and in every Upwork skill it competes in.
World#60 / 1,140,389Top 0.01%
Ukraine#5 / 26,475Top 0.02%React#15 / 43,528Top 0.03%
JavaScript#12 / 50,134Top 0.02%
PHP#7 / 23,067Top 0.03%
Node.js#12 / 32,925Top 0.04%
Laravel#6 / 12,928Top 0.05%
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Freelancer snapshot
On Upwork since2021
Rating100% Job Success
Skills tracked5
Skills
ReactJavaScriptPHPNode.js
Denis S. works mainly in React, ranking top 0.03% of freelancers in that skill.
MRR trendSoon
Last 12 weeks
Coming soon
Competitors on the board
Who ranks just above and below by MRR across all freelancers.
This freelancer is #60 of 1,140,389 across all freelancers.
RankFreelancerMRRMRR trend
MRR benchmark
Denis S. earns more than 99.99% of all freelancers we track.
Top 0.01%
among all freelancers we track
$0–$500
37%
$500–$1k
12%
$1k–$2.5k
16%
$2.5k–$5k
12%
$5k–$10k
11%
$10k–$25k
9%
$25k–$50k
3%
$50k+
1%
Denis S.'s bracket · $32k
You37%$0–$500
You12%$500–$1k
You16%$1k–$2.5k
You12%$2.5k–$5k
You11%$5k–$10k
You9%$10k–$25k
You3%$25k–$50k
You1%$50k+
Denis S. earns an estimated $32k/mo. That's 27.6× the typical freelancer and more than 99.99% of everyone we track.
Freelancers with no recent MRR are excluded. Only the 183,263 freelancers with active monthly revenue are ranked here.
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MRR is an estimate from Upwork's public figures - not an Upwork-official number.