Stanislav K.
Private message 
Offer work 
Vinnytsia,
Ukraine
available for hire
Rating
Language proficiency level
Українська: fluent
Русский: fluent
English: upper-intermediate
Italiano: upper-intermediate
CV
QS Lab (Quantum Solutions Lab) is a small but powerful IT team that builds thoughtful, fast, and scalable digital solutions. We combine technical expertise with a deep understanding of business logic — not just coding, but creating solutions that actually work and deliver results.
We dive into your project like it’s our own: analyzing, advising, optimizing. QS Lab means no unnecessary management or bureaucracy — just a committed team that gets involved, gives honest input, and delivers results.
We work fast, clean, and fair. We speak your language — no buzzwords, no hiding behind tech jargon. Clients trust us because we don’t let them down.
What we do:
Full-cycle web development: from MVP to production-ready SaaS
React, Vue, Node.js, Laravel, PHP, Python, Bash
Database design and system architecture from A to Z
WordPress / WooCommerce / Opencart — custom, fast, stable
Integrations with CRMs, payment systems, and more
Telegram bots
API, Webhooks, and sales process automation
UI/UX design
Telegram WebApp development
How we work:
We provide solutions, not just “follow the spec”
We deliver demos at every stage so you’re always in the loop
We run projects transparently: documentation, access, version control
We go deep into your business goals, not just the code
Why clients choose us:
- In-house business analyst - We don’t just execute tasks — we understand the project at its core. Our BA helps structure the logic, suggests smarter approaches, and prevents wasteful decisions before development begins.
- Zero bureaucracy - No layers of managers, no endless approvals. You communicate directly with the people building your product. That means faster results, lower costs, and fewer headaches.
- End-to-end infrastructure setup - We handle everything: hosting, CI/CD, security, analytics, payments, emails, backups, bots. After we’re done — everything works. Seamlessly.
- Post-launch support - We don’t disappear after delivery. Need an update? A fix? A consultation? We’re here.
QS Lab is about partnerships, not just one-time projects.
Skills and abilities
Programming
Design & art
Photo, Audio & Video
Promotion
- App Store Optimization (ASO)
- Contextual Advertising
- Lead Generation & Sales
- Link Building
- Marketing Research
- Public Relations (PR)
- Search Engine Optimization (SEO)
- Search Engine Reputation Management (SERM)
- Social Media Advertising
- Social Media Marketing (SMM)
- Teaser Advertisements
- Website SEO Audit
Outsourcing & consulting
Portfolio
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500 USD Business card website for lead generation of a marketer
Website Development
Type: Landing Page / Personal Brand / Lead Generation
Developed a modern landing page aimed at collecting applications from potential clients of the marketer.
The main goal is to increase conversion from advertising traffic and establish professional positioning of the expert in the digital sphere.
Created a complete UX structure that guides the user from the first screen to the application, with clear CTA elements.
… The design is executed in a minimalist style, using modern typography, animations, and logical accents.
Connected analytics (GA4, Meta Pixel), CRM integration, and lead collection forms.
Technologies: React / Next.js / TailwindCSS / Node.js / Google Analytics / Meta Pixel / Figma
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1000 USD Development of the NEMESIS website on KHOROSHOP
Website Development
Developed a full-fledged website for the NEMESIS brand — a manufacturer of phosphate-coated steel and titanium silencers with a patented gas discharge system. The website serves as an online catalog, blog, and showcase for B2C and B2B clients. A unique design was created in a dark technical style, adapted to a military theme, with an emphasis on performance and brand trust. Bilingual functionality (Ukrainian / Russian) was implemented, dynamic price updates from Excel files, multi-currency support (UAH / USD), a blog, a form for requesting wholesale prices, and invoice generation. The website is fully optimized for SEO and connected to analytics and CRM.
Technologies: Khoroshop, HTML, CSS, JavaScript, Excel integration, CRM, Google Analytics, Meta Pixel
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1500 USD Development of an online store for women's clothing
Website Development
Developed a fully turnkey website – from design to technical implementation.
The website operates in dropshipping mode and is fully synchronized with BAS Small Company PROF: automatic updates of products, prices, and stock levels.
Responsive design has been implemented, multilingual support (Ukrainian / Russian), multi-currency support (UAH / USD), integrated payment systems, and delivery.
SEO optimization has been conducted, Google Analytics and Meta Pixel have been connected for conversion tracking.
… The result is a fast, stable store, fully ready for advertising and scaling.
Technologies: WordPress, WooCommerce, PHP, JavaScript, BAS Integration, Google Analytics
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4000 USD Development of an AI diary SaaS platform
Website Development
Type: AI platform for self-development and psychological support
Team Role: Full website development (UX/UI, frontend, content, integrations)
Task
…
Create a modern promotional website to announce the launch of the first AI platform for self-discovery in Bulgaria.
The main goal is to explain the product idea, attract users for pre-registration, and build trust in a brand that combines psychology and artificial intelligence.
Implementation
- UX structure focused on conversion: short blocks, logical presentation, clear call to action.
- Design in a calm light green palette associated with balance and self-discovery.
- Integration of subscription form and analytics (GA4, Meta Pixel).
- SEO optimization, responsiveness, fast loading.
- Preparation for multilingualism (Bulgarian / English).
Technologies
HTML / CSS / JavaScript
WordPress (Custom Landing Theme)
Figma / MailerLite / Google Analytics
Result
A promotional website has been developed to collect pre-registrations before the official launch in autumn 2025.
The project successfully combined modern AI direction with psychological themes, creating trust in the new brand and attracting the first audience of users.
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2500 USD Automated generator of white-landing pages for Arbitration
Web Programming
Developed a SaaS solution for traffic arbitrageurs that allows creating ready-made white landing pages for any vertical (pharma, slim, betting, adult, etc.) in just a few clicks. The user can automatically deploy the page to their server or save it as an archive for future use.
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… The problem it solves:
In the work of an arbitrageur, creating whites is one of the least automated processes. It usually requires the involvement of a layout designer or searching for ready-made templates, which takes time, delays the launch of campaigns, and reduces efficiency. This tool automates the creation and deployment of the page, saving dozens of hours each month.
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Main functionality:
• Generation of white land under a specified theme
• Automatic deployment to the user's server (Keitaro-ready)
• Ability to upload the page as an archive
• Simple and intuitive interface: theme selection and "Create" button
• System to prevent the re-generation of identical templates
• Payment system for downloading the archive
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Technologies:
• Backend: Python (Flask)
• Frontend: React + TailwindCSS
• Integration with Keitaro API
• Automatic deployment via SSH/SFTP
• Payment services: Stripe / Fondy / LiqPay / USDT
• Server infrastructure: DigitalOcean / Hetzner
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My contribution to the project:
• Full development of functionality from idea to implementation
• UI/UX design and interface architecture
• Integration with Keitaro API
• Configuration of deployment and payment system
• Testing, debugging, and implementation of template protection system
• Optimization for commercial use
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Result:
• Page generation takes less than 30 seconds
• After the demo, over 80% of users pay for the archive
• The project significantly accelerated the launch of campaigns in the client's team
• A stable channel of passive income has been formed
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400 USD Website for presentation and sales of a bot for homeowners' associations and residential complexes
Website Development
A one-page landing page has been created that presents the capabilities of a Telegram/Viber bot for automating house management: online payments, voting, requests, meters, announcements, bookings, etc. The main goal of the site is to get the user to sign up for a demo session. The interface is built around clear CTAs ("Book a demo"), integration with a calendar, blocks of "Pain → Solution → Result," and an ROI calculator.
The site has a responsive design, integration of analytics, and CRM-UTM tracking for complete attribution.
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189 USD Development of a one-page product landing page
Website Development
Task
1. Create a one-page landing that instantly explains the product
2. Focus on the visual presentation of shoes in Instagram style
3. Ensure fast loading and perfect adaptation to mobile
… 4. Connect advertising pixels for TikTok and Meta
5. Prepare the platform for mass order processing through CRM
⸻
Solution
• Technologies: React (Vite + Tailwind CSS)
• Design: custom, turnkey, emphasis on the visual block
• Layout: responsive, focusing on mobile users (main target audience — mobile)
• Integrations: TikTok Pixel, Meta Pixel, Google Analytics
• Order form: simple, with auto-processing and the possibility of integration into CRM and TG bot
• Language/currency: Ukrainian and Russian, hryvnia/dollar
⸻
Landing structure
• Hero block with the main message
• Sneaker gallery with large photos
• Section with a description of advantages
• Quick order form
⸻
Result
• The landing was ready in a few days
• Fully responsive, works quickly even on weak devices
• Ready for traffic scaling (TikTok/Meta)
• Provides high conversion due to simplicity, focus on the product, and convenient form
• Simple structure allows for quick launches of new models in the same architecture
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6000 USD Development of a Telegram bot for playing Mafia
Bot Development
Main functionality:
• User registration
• By phone number and email (choice of confirmation channel)
• Authorization via Telegram and iOS app
… • Player profiles
• Avatar, nickname, club, game history
• Friends list, search for other players
• Admin panel for managing clubs
• Adding/editing players
• Event, tournament, game settings
• Tools for hosts
• Scanning role cards via camera
• Player selection, game statistics tracking
• Integration with payment systems
• Receiving payment for participation in the game
• Purchases in the WebApp store
• Built-in WebApp (Telegram WebApp)
• Amulet store (donation game mechanics)
• Amulet activation system before the game
• Merch store (t-shirts, cards, memorabilia)
• Rating system
• Player individual rating
• Leaderboards by clubs / cities / countries
• Bonus system
• Earning points for winning the game
• Bonuses for activity and attendance
Technical features:
• Telegram Bot API + Telegram WebApp
• Backend: Node.js + Python + PHP
• Database: MongoDB + MySQL
• Integration with iOS app via REST API
• WayForPay + LiqPay
• Responsive WebApp design (PWA approach)
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800 USD Application for booking tickets
Mobile Apps Design
Type: Mobile Application / Public Sector
Developed a full-fledged mobile application for online booking of appointments in government institutions.
The user can select the desired institution, service, convenient time, and receive an electronic appointment without queues.
… The system supports authentication, push notifications, integration with calendars, and databases of government services.
The application was developed from scratch: UX/UI design, architecture, backend, API, mobile clients for Android and iOS.
The interface is minimalist, intuitive, and optimized for government accessibility standards.
Technologies: React Native, Node.js, PostgreSQL, REST API, Firebase, Figma
Reviews and compliments on completed projects 6
30 November 2025
147 USD
Add and configure the feedback page, set up automatic delivery via Ukrposhta.
Overall, the task was completed, although not to the extent and within the timeframe that was expected. In general, the performer did everything well. There were nuances with the interpretation of the technical assignment; he wrote his version of the specifications. He did not receive a reaction from me (he was doing everything on the go, so he read it inattentively, my mistake), but overall everything is okay. He did what he could; I will ask someone to refine the Google reviews for an additional fee. Usually, freelancers perform in a way that the client is satisfied with the result, rather than just stretching the result to meet the minimum requirements of the specifications, for which I usually gladly pay extra, but here it was a different option. Well, everyone chooses their own style of collaboration independently. So, thank you for the work and I wish you success!
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5 November 2025
116 USD
TerminRadar
In principle, Stanislav performs everything clearly, quickly, and responds promptly to messages. It is very convenient and comfortable to work with him. The only thing is that he was a bit hasty in his execution, but in my case, this was not so important — I care more about quality and a deep understanding of the task. Therefore, I wish Stanislav to develop at a more moderate pace and always maintain a balance between speed and thoughtfulness.
4 November 2025
45 USD
Set up automatic sales tax for US states in WooCommerce
Quick communication, always in touch. Completed the task according to the specifications. I recommend for collaboration.
Thank you for your work on the bot and for the detailed instructions. I am impressed by your experience and how quickly you respond to questions.
I especially appreciate that you offered UI options and assistance with testing the bot. This is very professional and helps me understand how the project will work in practice.
I am still working a bit on setting up email notifications, and your tips are very helpful. I look forward to further collaboration and assistance with the visual part of the project.
7 October 2025
466 USD
Implement AI diary
Everything went smooth with Stanislav!
2 October 2025
291 USD
Website on React
Really good and fast work, recommend!
Activity
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Help to include such advertising
28 USD
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Bots are needed for watching videos, as well as interacting with them.
138 USD
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Publication in Google Play
100 USD
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Create a website based on a WordPress theme according to the sketch.
45 USD
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Convert our Figma design into a GeneratePress
25 USD
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Create an online store
582 USD
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Implementation of the platform wireframe
519 USD
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Development of AI based on the example of CHAT GPT for the website
451 USD
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Chatbot for Facebook Messenger (ManyChat)
83 USD
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A specialist is needed to create a brand page for Victoria Lado on Shop-Express.
180 USD
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