Hire the Best Scientific Researchers in Kyiv, UA

Hello! As an experienced developer in C/C++ and Python, and also a teacher of Programming and Mathematical courses, I would like to help you in these fields. I have a PhD in Computer Science with a strong Mathematics background and like to tackle non-standard problems in Optimization, Math Modeling, Computational Methods, and Algorithms, and deliver solutions from formulation through production-ready code, document the solutions, and tweak them for further improvement. So full-stack engineering problems, like: - Research , - Scientific Writing, - Coding, - Documentation, - Manual creation, - Tutoring, - Lecturing, - Mathematical and Statistical Analysis are the things I'm eager to do. I have no fear of dealing with new programming languages or frameworks, and basic knowledge of C, C++, MATLAB, Golang, Java, SML, etc., allows me to switch between the tools if it's required for the task.

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I am doing an internship in general surgery. I treat patients, perform surgical interventions, and write prescriptions. I am engaged in scientific activities in medicine, writing articles. I also work as a copywriter, writing various texts on medical topics and more.. I also have experience as a lead generator, researcher looking for clients on Facebook and Telegram.

I redesign core user flows to increase your revenue. I optimize User Flows / Revenue Generating Features / Onboarding / Funnels / Paywalls for high-growth SaaS & Mobile Apps. 🤝 Trusted by: Calendly, Nespresso, Red Bull, BMW, Toyota, Zara, and 300+ brands. ⚡ Impact: +61% Conversion | +37% Retention | $2B+ Revenue generated for clients. 💎 Booking for Q2 2026: Limited slots for deep-dive CRO audits and full-scale redesigns. 😎𝗜𝗻-𝗵𝗼𝘂𝘀𝗲 𝗦𝗮𝗮𝗦 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 My team has built two SaaS products - TapMyStore and Boostra. Both are still in beta, yet we’ve already received an offer to acquire 50% of the business for $400k. That experience shapes how we work. We’re not a traditional design team - we’re SaaS founders. Having built and scaled our own products, we understand how critical conversion, churn, and unit economics are to survival and growth. That founder’s mindset shows up in every decision we make. 💰 𝗛𝗶𝗴𝗵-𝗩𝗲𝗹𝗼𝗰𝗶𝘁𝘆 𝗚𝗿𝗼𝘄𝘁𝗵 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 I take a single user flow or revenue-generating feature and apply aggressive behavioral modeling and UX design to extract every possible dollar of value from it. So I don’t just deliver Figma files; I take ownership of growth-critical experiences from investigation to live production. I move beyond aesthetics to solve for conversion through five specific phases: ▪️ Product & Funnel Investigation: Identifying the exact "drop-off" points where you are losing capital. ▪️ Behavioral Conversion Modeling: Mapping user psychology to find friction that data alone doesn't show. ▪️ Experimentation Discovery: Turning insights into a backlog of high-probability win scenarios. ▪️ Production-Ready UX Solutions: Shipping high-fidelity, dev-ready designs that respect your existing tech stack. ▪️ Post-Release Performance Analysis: Measuring against the baseline to ensure the needle actually moved. 📡 𝗪𝗵𝗮𝘁 𝗬𝗼𝘂 𝗚𝗲𝘁 This isn't an open-ended engagement. It is a structured strike on a specific metric: ▪️ A diagnostic map of your current behavioral leaks. ▪️ 8–15 prioritized experiments ranked by Impact vs. Engineering Cost. ▪️ 2–4 high-impact design options. ▪️ Assets optimized for A/B testing or feature-flagging. ▪️ A post-release measurement plan to validate revenue lift. 🎯 𝗠𝘆 𝗙𝗼𝗰𝘂𝘀 𝗶𝘀 𝗚𝗿𝗼𝘄𝘁𝗵-𝗗𝗿𝗶𝘃𝗲𝗻 𝗨𝗜/𝗨𝗫 Most apps have a "leaky bucket" problem. You spend thousands on UA (User Acquisition) only for users to drop off during onboarding or at the paywall. I fix the bucket. I specialize in Growth Design: the intersection of behavioral psychology, data-driven UX, and high-end UI. I don't just "redesign" apps; I optimize the entire user journey to increase LTV and decrease CAC. I partner with product teams to define and ship revenue-critical product experiences from architecture to execution. 📈 𝗣𝗿𝗼𝘃𝗲𝗻 𝗖𝗥𝗢 & 𝗥𝗲𝘁𝗲𝗻𝘁𝗶𝗼𝗻 𝗥𝗲𝘀𝘂𝗹𝘁𝘀 ▪️ +55% 2nd-day retention via gamified first-session flows. ▪️ +38% revenue growth through checkout UX audits and friction reduction. ▪️ +40% sign-up rate by optimizing high-friction entry points. ▪️ +47% DAU increase using behavioral gamification systems. ▪️ A SaaS app with my full UI/UX Design and strategy generated $2B in revenue in 3 years. 🧠 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗲𝗹𝗶𝘃𝗲𝗿 I provide a full-stack growth service designed to move your North Star metrics: 🚀 Onboarding & First Session Strategy: Engineering "Aha!" moments within the first 60 seconds. 💰 Paywall & Funnel Optimization: Using A/B testing principles to maximize subscription conversions. 🔍 UX/UI Growth Audits: Identifying "conversion leaks" where you're losing money and users. 🎮 Gamification Systems: Designing reward loops and engagement hooks that stick. 🛠 Scalable Design Systems: Building Figma libraries that allow your team to ship 3x faster. 📈 Investor-Ready Prototypes: High-fidelity, clickable flows designed to close funding rounds. 🛠 𝗠𝘆 𝗗𝗲𝗹𝗶𝘃𝗲𝗿𝗮𝗯𝗹𝗲𝘀 💰 Funnel teardown + behavioral modeling 💰 8–15 prioritized hypotheses with impact/cost 💰 2–4 high-impact options ready for release (design + specs) 💰 Experiment-ready package (A/B or feature flag), or “ship-first” with analytics 💰 Post-release measurement plan (7–14 days) 💰 UI UX Design in Figma is ready for development. 💼 𝗪𝗵𝗼 𝗜 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 Funded Startups (Series A-C): Improving retention and unit economics to prepare for the next round. Early-Stage Founders: Building "Investor-Grade" MVPs that look and feel like Fortune 500 products. SaaS: Scaling revenue through CRO-focused web and mobile redesigns. SMBs that already have users and traffic and want to increase conversion 🚀 Stop leaving money on the table. ▪️Message me with a link to your product and the one flow that’s underperforming (Signup, Checkout, or Onboarding). ▪I’ll take a quick look and tell you exactly where I see the biggest revenue leak before we even hop on a call.

🚀 𝗔𝗩𝗔𝗜𝗟𝗔𝗕𝗟𝗘 𝗧𝗢 𝗦𝗧𝗔𝗥𝗧 𝗧𝗢𝗗𝗔𝗬 JULY 18 🏆 200+ projects · 7 years of experience · 20,000+ hours in design · Top 3% freelancer on Upwork Need a website that looks great, loads fast, and actually converts visitors into customers? I'm a Webflow Developer, Webflow Designer, and UX/UI Designer helping startups, SaaS companies, and growing businesses build high-performing websites and digital products. Unlike many freelancers who only focus on design or development, I do both. This means you get a website that is not only visually strong but also built with a scalable structure, clean CMS setup, responsive design, and conversion-focused user experience. Over the last 7 years, I've helped founders launch SaaS products, redesign outdated websites, improve conversion rates, and create scalable Webflow systems that support business growth. 📈 Results my clients have achieved: • Up to 2.3x higher conversion rates after redesigns • 40% increase in mobile engagement through UX improvements • Over $500,000 raised by startups using products and websites I helped design • Faster website launches thanks to streamlined Figma-to-Webflow workflows Services I provide: • Webflow Development • Webflow Design • Website Design & Website Redesign • UX/UI Design • SaaS Design • Product Design • Landing Page Design • Figma to Webflow • Responsive Web Design • Webflow CMS Setup • Design Systems • Dashboard Design • Startup Website Design • Conversion Rate Optimization (CRO) Industries I work with: SaaS, AI, FinTech, HealthTech, EdTech, B2B, Real Estate, E-commerce, LegalTech, Marketplaces, and Startups. Tools: Webflow, Figma, Relume, Client-First, Webflow CMS, Airtable, Zapier, Shopify, WordPress, Lottie, Spline, Miro, Notion, and ClickUp. Whether you need a complete website redesign, a new SaaS marketing site, a landing page that converts, or a pixel-perfect Figma to Webflow build, I can help turn your idea into a polished product that supports your business goals. If you're looking for a reliable Webflow Developer and UX/UI Designer who understands both design and development, I'd love to hear more about your project.

I am an academic researcher specializing in searching, correct, and format reference citations (bibliography) for articles, books, and other content for researchers, publishers, and librarians. I also assign Crossref DOI indices (digital object identifier) to any contents of scientific literature - journals articles, books, conference proceedings, reports, working papers, standards, dissertations, datasets, and preprints: - a scientific literature search in Scopus, Web of Science, Google Scholar, journal websites, special databases, etc. - compilation of a reference list; - prepare and format bibliography, citations; - individual selection of new bibliography for a research article by keywords; - working with archive bibliography; - introducing bibliography metadata to databases; - deposit metadata for journals, books, conference proceedings, reports, and dissertations; - assignment of DOIs (Digital Object Identifier) for Journal, Report, Book, Dissertation (Thesis) in Crossref system; - register reference list for participating in Cited-by; - journal website management. In addition, I can help to consult about developing a defense strategy of intellectual property (Trademarks, Patents, Copyright).