Hire the Best Research & Development Freelancers
in Ukraine

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Yevgenia D.

Vyshhorod, Ukraine

$30/hr
5.0
7 jobs

AI/ML Engineer | Offline LLM Applications, RAG, Knowledge Graphs & Privacy-First AI Systems AI/ML Engineer and Databricks Certified Generative AI Engineer specializing in secure, offline AI systems for sensitive data and domain-specific workflows.I am a Ukrainian freelancer working remotely from Europe. I combine AI/ML engineering expertise with 16 years of legal experience in intellectual property and business-related legal matters. This gives me a strong advantage when building AI systems for sensitive documents, legal workflows, compliance-heavy environments, and domain-specific decision support. My main focus is building local AI applications that run fully offline using open-source base LLMs, without relying on cloud APIs, external databases, or model fine-tuning. Instead, I design strong engineering pipelines around the model: document processing, domain logic, knowledge graph structures, prompt orchestration, validation steps, and structured report generation. This approach is especially valuable for legal, medical, finance, and enterprise environments where data privacy, cost control, and local execution are critical. My Core Expertise: Offline LLM Applications Building AI tools that run locally on macOS, Linux, or Windows using open-source models such as Llama, Mistral, Qwen, and other local LLMs. Knowledge Graph-Based AI Pipelines Designing structured AI workflows that use knowledge graphs, document metadata, domain rules, and multi-step reasoning pipelines to improve output quality without fine-tuning. Privacy-First AI for Sensitive Documents Creating systems where documents, prompts, summaries, and generated reports remain fully local, reducing data exposure and cloud dependency. Document Intelligence & Structured Reporting Processing complex, domain-specific documents and generating summaries, structured outputs, and final reports tailored to professional workflows. Full-Stack AI Engineering Building complete AI applications from backend pipeline design to desktop packaging, FastAPI services, local model integration, and deployment-ready solutions. Tech Stack: AI/ML: Python, PyTorch, Hug Face, LangChain, llama.cpp, Ollama Local LLMs: Llama, Mistral, Qwen, GGUF models, quantized models Data & Engineering: FastAPI, Docker, SQL, MLflow, Databricks Optimization: Model quantization, local inference optimization, Apple Silicon / Metal acceleration Applications: Offline AI tools, knowledge graph pipelines, document processing systems, desktop AI applications Education & Certifications: MSc in Computer Science, Data Science & Analytics – Woolf University Databricks Certified Generative AI Engineer Top Rated Plus Freelancer on Upwork One of my recent long-term projects started as a request to migrate an online AI prompt into a local offline application for forensic document assessment. The final solution evolved into a privacy-first desktop AI system for sensitive professional documents, using a local open-source base LLM, custom document processing, document classification, knowledge graph structures, prompt orchestration, validation logic, structured reporting, and secure local deployment - without cloud APIs , databases and model fine-tuning. If you need a secure, offline AI solution that works with sensitive documents and runs full locally on your own hardware, I can help design and build a practical system tailored to your workflow.

  • Research & Development
  • Python
  • Transformer Model
  • Deep Learning
  • MLOps
  • MLflow
  • Databricks Platform
  • AI Agent Development
  • LLM Prompt Engineering
  • macOS
  • Data Privacy
  • Retrieval Augmented Generation
  • Large Language Model
  • Generative AI
  • Natural Language Processing
  • Machine Learning
  • Knowledge Graph
  • Hugging Face
  • AI App Development
Olesya B.

Kyiv, Ukraine

$30/hr
5.0
54 jobs

I help nonprofits, authors, and businesses turn messy information into structured datasets and clear summaries — using manual research you can trust. Clients hire me when accuracy and verification matter more than speed or scraping. 🔍 Core Research Services Publishing & Book Research Literary agent research, submission guidelines, genre fit, query links, personalization notes, book and long-form research support, finding sources, and fact-checking summaries. Editorial & Content Research Research support for articles, blogs, essays, reports, journalism projects, podcasts, thought-leadership pieces, and social science topics: claim checking, background research, expert and source discovery, citation and reference organization Grant & Funding Research Grant and funding opportunity research, eligibility screening, deadline tracking, award size, requirements, scholarship research, and application-readiness checklists. Business Research VC/investor research, conference research, speaking opportunities, CFPs (Call for Papers), competitor scans, company research, market landscape research. ✅ Deliverables Depending on the project, I can provide: - Clean spreadsheet or database in Excel / Google Sheets - Ranked shortlist with rationale, risks, and constraints - Grant, agent, investor, conference, or scholarship tracker - Fact-check and verification table with source links - Research brief with key findings, patterns, and recommendations - Decision matrix comparing options across criteria ⭐ What Clients Say “Extremely reliable and thorough. I know the job will get done well when I assign it to her.” “Conscientious, professional, and consistently delivered on time.” “Her research was thorough, carefully considered, and brilliantly executed. Communication was among the best we’ve experienced on Upwork.” 📌 Selected Case Examples - Compiled 50+ tech/startup conferences across the US, UK, EU, and Eastern Europe for outreach strategy - Built a grant-opportunity tracker for a nonprofit (eligibility, deadlines, funding size) - Created a source database for a book (100+ sources with summaries, themes, accuracy checks) - Produced a carbon-labeling industry overview deck for CPG stakeholders, translating complex sustainability topics into a clear framework for non-technical teams - Conducted a detailed visual analysis of 500+ artworks and created a structured table summarizing patterns, variations, and key takeaways - Delivered an EU relocation decision matrix (taxes, salaries, legal status, cost of living, education) 🛠️ Tools Google Sheets · Google Docs · Google Drive Microsoft Excel · Word · PowerPoint · Outlook Tableau · Datawrapper · Flourish · Canva 📚 Research Areas & Topics Sustainability, ESG and CSR, climate, supply chains, media (media literacy, propaganda, misinformation, disinformation), communications, social sciences, education, international development, nonprofit and NGO, tech and startups, innovation ecosystems, labor and cost-of-living, international policy, marketing, arts, culture, wellness, travel, logistics, literature, publishing. I adapt my research framework quickly to new industries. 📩 How to Start I do research for people who cannot afford errors, fake citations, or shallow AI summaries. Message me with your topic, target geography or industry, deadline, and preferred format (sheet, brief, or both).

  • Academic Research
  • Research Methods
  • Microsoft Excel
  • Topic Research
  • Report
  • Data Entry
  • Data Collection
  • Critical Thinking Skills
  • Google Search
  • Translation
  • Fact-Checking
  • Company Research
  • Research Papers
  • Information Literacy
  • Google Docs
Nelia M.

Izyum, Ukraine

$17/hr
5.0
7 jobs

I am an experienced Academic Writer, Researcher, and University Lecturer with a strong background in scientific and pedagogical publications. I specialize in writing, editing, and formatting research articles for submission to Scopus and Web of Science journals. With hands-on experience in academic publishing, I understand journal requirements, structure, referencing standards, and submission procedures. What I can help you with: • Academic writing and research articles • Literature reviews and research proposals • Journal article formatting (Scopus/WoS standards) • Reference formatting (APA, MLA, Chicago) • Editing and proofreading academic texts • Structuring manuscripts according to journal guidelines • Preparing articles for submission I have authored my own scientific publications and contributed to collaborative research projects, including monograph chapters and commissioned academic articles. I am detail-oriented, responsible, and committed to delivering high-quality work on time. My goal is to ensure that your research meets international academic standards and is ready for successful journal submission.

  • Research Methods
  • Academic Writing
  • Scientific Writing
  • Research Paper Writing
  • Literature Review
  • Editing & Proofreading
  • Academic Editing
  • Article Writing
  • Journal Entries
  • Technical Copywriting
  • Data Analytics & Visualization Software
  • LaTeX
Volodymyr D.

Kyiv, Ukraine

$18/hr
5.0
4 jobs

Turning complex information into data-driven insights and actionable recommendations that help entrepreneurs validate ideas, identify opportunities, and make confident strategic decisions. Specialized in industry analysis, competitive intelligence, market trends, audience insights, online research, and strategic reporting.

  • Market Research
  • Competitor Research
  • Competitive Analysis
  • Business Research
  • Industry Research
  • Market Analysis
  • Competitive Intelligence
  • Online Research
  • Data Analysis
  • Lead Generation
  • Prospect List
  • B2B Lead Generation
  • Ukrainian
  • SurveyMonkey
  • Survey
Viacheslav S.

Kyiv, Ukraine

$15/hr
5.0
21 jobs

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).

  • Academic Research
  • Academic Editing
  • Scientific Literature Review
  • Google Search API
  • Formatting
  • Website Content
  • English
  • Citation Style
  • Research Papers
Kateryna K.

Kyiv, Ukraine

$30/hr
5.0
8 jobs

⭐️Hire me as a UX/UI Designer with 6+ years of experience, and get clean, high-performing designs built with Figma, responsive UI/UX, pixel-perfect Wireframing, and interactive Prototyping that developers love⭐️ 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲? 👉 300 hours of work on Upwork and 500+ hours on other freelancing platforms 👉 100% Job Success Score, Top-rated Plus freelancer 👉 Created designs for FinTech, Healthcare, Real Estate, AI tools, and more - spanning both Web Design and Mobile App Design 👉 50+ completed projects across WordPress, SaaS, Graphic Design, and User Interface Design 🚀𝐃𝐞𝐬𝐢𝐠𝐧 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 𝐈 𝐃𝐞𝐥𝐢𝐯𝐞𝐫 ❇️ SaaS & Software Design Expert in intuitive UX/UI Design for platforms like CRMs, ERPs, and productivity tools—ensuring seamless User Flow, Interaction Design, and clean UI from MVP to launch. ❇️ Wireframing & Prototyping Using Figma, I build efficient Mockup systems, interactive UI/UX Prototyping, and developer-ready specs. I incorporate best practices in User Experience Design, User Interface Design, and Responsive Design. ❇️ Mobile App Design & Mobile UI Design I design polished Mobile Design solutions for iOS & Android with attention to usability, performance, and modern aesthetics. ❇️ Web & Landing Page Design From Web Design and redesigns to responsive, conversion-optimized WordPress or custom builds, I ensure every component is aligned with user behavior and modern UX & UI standards. ❇️ E-commerce & Marketing Interfaces Conversion-driven Graphic Design, intuitive Interaction Design, and structured content layouts for eCommerce and marketing funnels. ❇️ CMS & Development-Ready Assets Deliverables ready for integration with Webflow, WordPress, or custom-built systems using HTML, CSS, and JavaScript. ❇️ Research & Testing Using Journey Mapping, UI/UX Prototyping, and real-user testing, I validate every User Flow and interface decision to improve usability. 🏅 𝐌𝐲 𝐒𝐤𝐢𝐥𝐥𝐬 𝐈𝐧𝐜𝐥𝐮𝐝𝐞: 6 years of experience with: Figma, Adobe Photoshop, Adobe Illustrator, JavaScript, CSS, HTML, Web Development, UI/UX Prototyping, User Interface Design, User Experience Design, Wireframing, Mockup, Interaction Design, Mobile App Design, Mobile UI Design, Responsive Design, UX & UI, Graphic Design, and Software Design 🏆 𝐑𝐞𝐜𝐞𝐧𝐭 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬 & 𝐑𝐞𝐬𝐮𝐥𝐭𝐬 👉 Insurance Sales CRM Platform Redesigned UI using Figma, Prototyping, and clean Web Design mockups. Enhanced User Flow and Interaction Design led to 30% faster agent response time and $250k in revenue. 👉 Twitch Streamer Analytics Tool Built responsive SaaS dashboard with Mobile UI Design and Graphic Design, improving data visualization and engagement via optimized User Interface Design and UX & UI practices. 👉 Productivity Mobile App Delivered polished MVP using Figma, Mockup, Prototyping, and Adobe tools. Enhanced experience through improved User Experience Design and reduced turnaround time by 25%. 👉 Finance App UI Overhaul Led Responsive Design, UX/UI Design, and Prototyping efforts—resulted in a 35% increase in retention and $200k in funding. 𝗧𝗲𝘀𝘁𝗶𝗺𝗼𝗻𝗶𝗮𝗹𝘀: 🥇"Kateryna helped us redesign our SaaS platform from the ground up. Her Figma wireframes and UI/UX Prototyping brought clarity to complex User Flows." — James Li, Product Lead at OptiCRM 🥇"We needed a full Web Design overhaul, and Kateryna delivered. From responsive Mockups to clean WordPress-ready files, everything was top-notch." — Alisha Morgan, Marketing Director at Fintrix Cloud 📍📩 Have a design project in mind? Invite me or send a message — let’s turn your ideas into intelligent, scalable design solutions that work across web, mobile, and CMS. 📩📍 KEYWORDS: Product Design User Experience, Product Design Business Strategy, Product Design Investment, Product Design Startup, Product Design Prototype, Product Design Innovation, Product Design Development, Product Design Testing, Product Design Market Research, Product Design Usability, Product Design UI/UX, Product Design MVP, Product Design Wireframes, Product Design Prototyping Tools, Product Design Digital Transformation, Product Design User Testing, Product Design Interaction Design, Product Design User Journey Mapping, Product Design Agile Methodologies, Product Design Design Thinking, Product Design Lean Startup, Product Design User Interface, Product Design Conceptual Design, Product Design Design Systems, Product Design Collaboration, Product Design Cross-functional Teams, Product Design Research & Development, Product Design Digital Products, Product Design Usability Testing, Product Design User Research, Product Design Market Validation, Product Design User Personas, Product Design Ideation Process, Product Design Problem Solving, Product Design Process Optimization, Product Design, Human-centered Design, Product Design Information Architecture, Product Design Design Sprints, Product Design Rapid Prototyping, Product Design Interaction Patterns

  • UX & UI
  • Figma
  • UI/UX Prototyping
  • User Interface Design
  • User Experience
  • Web Design
  • UI Graphics
  • Adobe Illustrator
  • Graphic Design
  • Mobile App Design
  • Wireframing
  • Landing Page
  • Mobile UI Design
  • Adobe Photoshop
  • Software Design

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