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Many products fail not because of bad execution, but because the underlying system was never clearly defined. I work at the stage where ideas must become living, structured systems. With 20+ years in software development, I design business and product systems that can actually function, scale, and hold real operational load. 💡 What I do Having grown from a software developer to a System Architect and Product Manager, I naturally see what others often miss: the gap between a "cool idea" and a working business process. I turn vague visions, disconnected workflows, and implicit assumptions into: ✔ clear system structures ✔ defined business logic ✔ executable product architecture This is not just an analysis.
 This is the system definition. 🚀 Where I create the most value ✔ When a startup idea needs structured validation ✔ When a product concept exists, but cannot yet be built reliably ✔ When workflows between operations, product, and finance don’t align ✔ When development is at risk of building on unvalidated assumptions ✔ When the system needs to handle real-world complexity, not just a “happy path” 🔍 My approach I start by reconstructing the real operating model behind the idea. Then I define: ✔ what events must exist in the system ✔ how data flows between them ✔ how business logic translates into system behavior ✔ where inconsistencies or risks will break the system The goal is not documentation. The goal is a system that can be implemented without collapsing under real-world conditions. 📊 Typical outcome ✔ A clear system architecture (not just descriptions) ✔ Defined business logic and workflows ✔ Eliminated ambiguity for development ✔ Identified structural risks before they become expensive mistakes ✔ A system definition that can be directly implemented 🎯 Core expertise ✔ Product & System Architecture ✔ ERP / CRM / Operational Systems ✔ Multi-sided Platforms ✔ Business Process Design ✔ Data-driven Systems (SQL-based environments) 💼 Selected projects 1. Enterprise Systems:
 ✔ Trade warehouse management systems (multiple enterprise implementations).
 ✔ Healthcare management software (health resort management).
 ✔ Blood transfusion station management system. 2. Startup / Platform ✔ Multi-sided wedding & event planning platform connecting couples, venues, vendors, and travel agencies. 3. Mobile Product ✔ Feature development for a wellness mobile app (Challenges, Statistics module). ⭐ What makes me different I don’t just analyze ideas. I define the structure that allows them to work in reality. 🌿 Professional values: - Respectful and collaborative communication - Stress-Free Environment

Top 1% Upwork EXPERT-VETTED Data & Solution Architect. For over 15 years, I've worked with data, focusing the last 7 years as a Data Architect on managing high-load and big-data projects. I oversee systems that serve hundreds of millions of users and manage petabytes of data, along with overseeing infrastructure budgets of over 1.5 million USD each year. In the past 8 years on Upwork, I have completed more than 100 projects with a 100% Job Success Score and a 94%+ client return rate. SERVICES ✅ Data Engineering ✅ AI/ML ✅ AI Adoption & GenAI ✅ Predictive analytics ✅ High-load Data Scraping ✅ Data Integration - seamless connection through APIs ✅ Data Management – ETL pipelines, Data Warehousing, Data Lakes, DataOps ✅ IT Infrastructure & Solution Architecture ✅ DevOps for Performance Optimization and Cost Reduction STACK & TECHNOLOGIES Core stack: Python Data Warehousing: Redshift | BigQuery | Snowflake | Teradata Data Lakes: Hadoop | Amazon S3 | Azure Data Lake Storage | Google Cloud Storage ETL Tools and Data Pipelines: Databricks Workflows | AWS Glue | Google Cloud Dataflow Big Data Processing: Spark | Hadoop | Google Dataflow | Dask | Amazon Kinesis | Kafka Databases: MySQL | PostgreSQL | Google BigQuery | MongoDB | DynamoDB | Redis Data Analysis and Machine Learning: Pandas | NumPy | Dask | SciPy | OpenCV | TensorFlow | PyTorch | Scikit-learn | XGBoost | Keras | spaCy GenAI: OpenAI GPT-3 | GPT-4 | Lama 2 | Llava | Bard | Mistral | Anthropic Visualization Tools and Libraries: Power BI | Looker | Quicksight | Grafana | Plotly | D3.js | Dash | Matplotlib DevOps and DataOps AWS | GCP | Azure | Docker | Kubernetes | Amazon ECS | Jenkins | GitLab CI/CD | GitHub CI/CD | Bitbucket Pipelines | Ansible | Terraform | CloudFormation | Prometheus | Grafana | Datadog | Zabbix | ELK Stack | Elasticsearch | Logstash | Kibana | Graylog Web Development Front-End: React.js | Redux | Redux-Saga Back-End: Python | Django Rest Framework | Flask We use the Agile approach to ensure great products delivery. As our benefits, we provide the guarantee, NDA signing, and post-service for delivered products. Want to work together? I’d love to hear from you!

I’m Liubov, a UI/UX and graphic designer with 5+ years of hands-on experience helping brands and startups create visually striking, user-friendly, and conversion-focused designs. I turn complex ideas into clean, intuitive digital experiences, from SaaS dashboards and websites to emails and brand visuals that convert. ✅ What I Bring to Your Product as a UI/UX Designer ▪ 5+ years of experience in UI/UX design, web design, and brand identity creation, delivering visuals that connect creativity with strategy. ▪ Purpose-driven design approach — I craft interfaces that boost usability, engagement, and conversions. ▪ User-focused thinking: I design layouts and user flows that make navigation effortless and logical. ▪ Prototyping & wireframing expertise: I use Figma to build high-fidelity prototypes and map intuitive user journeys. ▪ Clean and modern UI: My design style combines clarity, accessibility, and a cohesive brand aesthetic. ▪ Strong visual identity skills: From logos to banners, I ensure your brand communicates value instantly. ▪ Email design that drives results: I create beautiful, conversion-focused email templates that build customer loyalty and engagement. ⚒️ Tools I Use to Bring Ideas to Life • Figma – full layouts, UI components, and interactive prototypes • Photoshop & Illustrator – advanced image editing, retouching, and vector graphics • Canva – quick, polished solutions for simple or social-first tasks 📈 Selected Achievements ➡️ Website & Landing Page Design: • Improved conversion rates by up to 40% through UX optimization and modern UI. • Created cohesive brand visuals that increased user trust and session duration. ➡️ Email Design Projects: • Designed branded email campaigns that boosted click-through rates by 35%. • Streamlined templates for marketing teams, improving workflow speed by 50%. ➡️ Brand Identity Work: • Helped small businesses and startups stand out with consistent and professional visuals. Looking for a UI/UX Designer who can turn your brand vision into an impactful, conversion-ready digital experience? Let’s collaborate and bring your next project to life! 💬 🔥Keywords: UI Designer, UX Designer, UI/UX Designer, User Interface Designer, User Experience Designer, UX/UI, Product Designer, Interaction Designer, Information Architect, Usability Expert, Figma, Adobe XD, Sketch, InVision, Prototyping, Wireframing, User Research, Usability Testing, A/B Testing, User Flows, Interface Design, User Interface, User Experience, Product Design, Interaction Design, Information Architecture, Usability, Mobile App Design, Web Design, E-commerce Design, Dashboard Design, UX Research, Wireframe, Prototype, Mockup, User Journey, Persona, Usability Heuristic, Design Thinking, Design Sprint

The most expensive product mistakes happen while everything still looks early. The idea is good, the team is moving, but nobody has fully decided what v1 actually needs to be. That is usually where I come in. I have spent 14 years working with founders and product teams across AI, fintech, blockchain, SaaS and infrastructure. I have helped ship 40+ MVPs and platforms from zero, worked on product design at a company later acquired for $500M, and companies I have worked with have raised more than $200M. I have also started, run, sold and closed businesses of my own. So I do not look at product decisions only through the lens of UX. I know what it costs when the wrong feature takes weeks of engineering, delays the launch, adds complexity and still does not solve the actual problem. My work usually starts with figuring out what the product needs to be before deciding what the screens need to look like. For an early product, that means defining the right scope, working through the critical user flows and trade-offs, deciding what belongs in v1 and what can wait, then turning those decisions into UX, prototypes and Figma that engineering can build from. For a product already in market, it means finding out why something is not working before redesigning it. Where users are getting stuck, which complexity can be removed, which problems actually matter, and where the next months of product and engineering effort should go. I can own product design from zero through engineering handoff, or work alongside an existing founder, product or engineering team on the part that is stuck. WHAT I WORK ON 0-to-1 product design, MVP definition, product strategy, complex UX, onboarding and activation, information architecture, dashboards, prototyping, product redesigns and enterprise design systems. Design systems are a major part of my work, especially for larger products and teams. I build them as infrastructure between design and engineering, not just a Figma library. One system reduced development time by 25% and design-to-development handoff errors by 40%. I also build design systems and product workflows for the way teams work with AI now. That includes structured components, tokens, documentation and patterns that can serve as a shared source of truth for designers, engineers and AI coding tools, as well as AI-assisted workflows for exploration, prototyping, documentation, design-to-code and QA. For AI products themselves, I work on agent interfaces, human-in-the-loop workflows and the interaction problems that appear when software becomes less deterministic. The goal is still the same: make a complex system understandable, useful and controllable for the person using it. If you want to start with a smaller, defined engagement, I also offer two one-week, fixed-price options. Product Definition is for products before or early in the build. I work through the idea, research, constraints and open questions and help establish the core direction for v1: what matters, which flows need to work, what should happen first and what can wait. Where useful, I also work through wireframes or key screens to make those decisions concrete. Product Diagnosis is for products already in market. I review the product, critical flows, available data and business context, then give you a written recommendation on what I would keep, cut, change or rethink and where I would focus next. Both can be standalone projects or the starting point for a longer engagement. Past work has contributed to 30% faster task completion, 25% higher DAU, 20% higher retention, 25% faster development and 40% fewer handoff errors. I am strongest where complexity is part of the product: fintech and investing, crypto and DeFi, AI products and agent platforms, data-heavy B2B SaaS, enterprise software and cloud infrastructure. I work directly with founders and engineers. I will question the scope when I think it is wrong, tell you what I would remove before suggesting more, and tell you when a redesign would create more work without solving the real problem. If you are building from zero, fixing something already in market, or trying to make a complicated product much clearer, send me what you are working on and where it is stuck.

Many companies don't need another developer—they need someone who can understand a complex system, identify technical risks, and build the right solution before writing thousands of lines of code. That's where I help. I'm a Software Architect and Senior .NET Engineer with 20+ years of commercial experience designing, modernizing, and scaling business-critical applications. I specialize in turning complex legacy systems into maintainable, scalable platforms while minimizing business disruption. Over the years, I've worked with startups, SMBs, and enterprise clients, helping them solve technical challenges rather than simply implementing features. What I can help you with ✔ Legacy system modernization ✔ Technical Discovery & Solution Architecture ✔ SaaS platform development ✔ ASP.NET Core / .NET 6-10 ✔ Azure Cloud Architecture ✔ System Design & Technical Leadership ✔ Performance optimization ✔ Multi-tenant applications ✔ REST APIs & Microservices ✔ Database design & optimization (SQL Server) ✔ Identity, Authentication & Authorization ✔ AI integration into existing applications Typical projects • Modernizing large legacy .NET applications • Building new SaaS products from scratch • Designing scalable cloud architectures • Technical due diligence before development starts • Recovering undocumented business logic • Refactoring complex systems • Leading development teams • Solving performance bottlenecks My technology stack • C# • .NET / ASP.NET Core • Azure • SQL Server • Entity Framework Core • Angular • React • Docker • Kubernetes (AKS) • Redis • RabbitMQ • SignalR • OpenIddict • Azure DevOps • GitHub Actions How I work I believe software development starts with understanding the business—not the technology. Before suggesting an implementation, I focus on understanding business goals, existing workflows, technical debt, and future scalability. This approach significantly reduces project risk and helps avoid expensive architectural mistakes. I'm comfortable working as: • Software Architect • Senior Full Stack .NET Developer • Technical Lead • Fractional CTO • Technical Consultant If you're looking for someone who can not only write high-quality code but also help make the right technical decisions, I'd be happy to discuss your project.

Your business loses a customer every time a call goes unanswered. For a home-services company or clinic that's $300–$5,000 lost to competitors who are better automated. For real estate agencies it's hundreds of thousands in lost deals. Even if you're a small firm with ambitions to grow, what awaits you when you invest in marketing and start getting over 100 calls per day? Will your systems survive? 𝗠𝗲𝗲𝘁 𝗳𝘂𝘁𝘂𝗿𝗲 𝗰𝗵𝗮𝗹𝗹𝗲𝗻𝗴𝗲𝘀 𝗻𝗼𝘄 - 𝗮𝘂𝘁𝗼𝗺𝗮𝘁𝗲 𝘆𝗼𝘂𝗿 𝗶𝗻𝗳𝗿𝗮𝘀𝘁𝗿𝘂𝗰𝘁𝘂𝗿𝗲 in advance. For high-loaded SaaS platforms (FinTech, Real Estate, Marketplace, E-commerce, Events) I propose 𝗔𝗜 𝘃𝗼𝗶𝗰𝗲-𝗱𝗿𝗶𝘃𝗲𝗻 𝗹𝗲𝗮𝗱 𝘀𝗰𝗼𝗿𝗶𝗻𝗴 𝗮𝗻𝗱 𝘀𝗼𝗿𝘁𝗶𝗻𝗴 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 to handle hundreds of calls per day. I build AI voice receptionists that answer every call 24/7, sound human, quote your services, and book appointments straight into your CRM or field-management system (GoHighLevel, HubSpot, Zoho, calendars - anything with an API via n8n). In addition to inbound and outbound agents, I'm building VoiceCrew AI- pre-configured voice agents for personal productivity. Tap once or call to access your assistant for daily tasks: email/calendar updates, tasks, web search, weather, currency rates. Works even while you drive. 𝗪𝗵𝗮𝘁 𝗜 𝗱𝗲𝗹𝗶𝘃𝗲𝗿: ✔ Inbound AI receptionist (Vapi / Retell / Telnyx + voice choice) — answers, qualifies, books, integrates tools ✔ Missed-call text-back and follow-up automation (n8n) ✔ Call transcripts, summaries, and lead data pushed to your CRM automatically ✔ Outbound: appointment reminders, review requests, lead reactivation calls Fixed price, live in 14 days, 30-day tuning included. Want to hear it in action? Let me know and I'll send demo agents to speak with - or check my portfolio videos. 𝗠𝘆 𝗯𝗮𝗰𝗸𝗴𝗿𝗼𝘂𝗻𝗱: 10+ years in B2B marketing and product development (Google UX certified). Your agent isn't just a tech solution - I understand your marketing strategy and have built sales funnels for companies across 10+ countries. Co-founder of VoiceCrew AI. Top Rated on Upwork, $20k+ earned.