I help startups and businesses build scalable backend systems, AI-powered products, SaaS platforms, and custom APIs using Python, Django, and FastAPI. Over the past few years, I’ve worked on AI agents, RAG-based chat systems, workflow automation, cloud deployments, internal business tools, database migrations, and high-performance backend architectures for startups and growing companies. My experience includes: • AI Agents & AI-powered applications • Backend architecture & API development • Django, FastAPI, Flask & Python • SaaS platforms & MVP development • PostgreSQL, MySQL & database optimization • AWS, Docker & deployment workflows • Automation systems & third-party integrations • Code optimization, debugging & refactoring I focus on writing clean, scalable, and production-ready backend code with strong attention to performance, maintainability, and long-term scalability. Whether you need to build a backend from scratch, improve an existing SaaS product, develop AI-powered workflows, or optimize APIs and infrastructure, I can help deliver reliable solutions that scale. Let’s build something great together.

We Can help you: ★ Product Design & Development 🔸 Create the architecture of your next mobile app using React Native and Flutter 🔸 A to Z app design and development 🔸 Set up a development team and delivery processes 🔸 Review the quality of the code 🔸 Help to find bottlenecks on the technologies side for the rapid growth of your product 🔸 Consultancy to make app GDPR, HIPAA, and MDR compliant ★ Software testing 🔸 QA Audits and Assessments 🔸 QA Staffing 🔸 Dedicated QA team 🔸 Managed testing 🔸 Mobile app testing 🔸 Web app testing 🔸 DevOps Hi 👋 my name is Liudmyla Dziubynska, and I am a professional software engineer with more than 8+ years of experience creating custom high-load platforms and applications. Since 2017, I have been leading a team of software development engineers with deep expertise and focusing on developing custom cross-platform and web applications using: 🔹 Javascript & TypeScript 🔹 ReactJS 🔹 React Native 🔹 Flutter 🔹 NodeJS (NestJS, Express) Our developers not only pay attention to technical aspects, but we also have experiences in business domains, such as: 🔸 HealthCare 🔸 FinTech 🔸 Logistics 🔸 SaaS solutions 📌 What value we can bring: • Technical risk management. We care about the technical edge cases of the product to avoid any data breaches or fines in the future • Direct communication with the whole team and transparent cooperation • Solid processes in development, testing, and product delivery • Flexible working with the various time zones 📌 Key information about ZenBit Tech: • Delivery software development services since 2017 • ISO13486 certified • Headquarters and R&D in Eastern Europe with the sales office in the UK • Participating in and committed to the IT community (IT hubs, organizing local events, meetings, etc.) 🤔 Interesting in building a scalable and successful product? I would be happy to share my experience and provide you with a solution!

I act as your Product Owner — on your side, not the dev team's. I take your business vision and turn it into technical approach. Then I control that dev team does what is needed and with optimal time & cost. You save time & money and get what you really need. You shouldn't have to learn how developers think. Or manage them every day. Or fight over scope and price for weeks. You have a business to run. I own the product side so you don't have to. ◆ 𝗕𝗮𝗰𝗸𝗴𝗿𝗼𝘂𝗻𝗱 20+ years in software development. Hands-on as a full stack developer and AI developer. Strong background as a Data Architect & AI Engineer especially in AR/VR, Warehouse & IoT systems. ◆ 𝗪𝗵𝗮𝘁 𝗬𝗼𝘂 𝗚𝗲𝘁 ✔️ Your business goal, turned into a clear plan the team can build. ✔️ A product that matches what you need — not just what's in the brief. ✔️ One person who talks to your full stack and AI developers for you. ✔️ A team accountable to the result, not just to closing tickets. ✔️ Your time back, to focus on the business. ✔️ Specially for industrial AR/VR projects I have CAD to 3D converter create 3D objects quickly. ◆ 𝗛𝗼𝘄 𝗜'𝗺 𝗗𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝘁 A project manager explains why the team is late. I do the opposite. I push the team. I ask hard questions. I keep every task tied to your goal. I don't join your dev team. That's the point. Sitting inside the team, anyone starts defending it. From your side, I stay focused on you. ◆ 𝗪𝗵𝘆 𝗧𝗵𝗶𝘀 𝗠𝗮𝘁𝘁𝗲𝗿𝘀 You know what your product should do. Turning that into something a dev team can build is where most projects get stuck. You talk to developers. They ask for details you don't have. The estimate keeps growing. Weeks pass. Nothing ships. Or the team builds — and what comes back is not what you pictured. ◆ 𝗧𝘄𝗼 𝗪𝗮𝘆𝘀 𝗜 𝗖𝗮𝗻 𝗛𝗲𝗹𝗽 ✔️ Product Owner (most clients need this). You have a business goal but not a clear product yet. I shape the product to reach the goal, then lead the team to build it. ✔️ Business Analyst (if you already know the business side). You know exactly what you want. I write it down properly — clear requirements, user stories, a scope your team can estimate and build without guessing. The difference is simple: a business analyst writes down what you ask for. A Product Owner proposes what to build to hit your goal. We start by finding out which one fits you. ◆ 𝗦𝘁𝗮𝗿𝘁 𝗪𝗶𝘁𝗵 𝗮 𝗦𝗵𝗼𝗿𝘁 𝗗𝗶𝘀𝗰𝗼𝘃𝗲𝗿𝘆 𝗖𝗮𝗹𝗹 In 30 minutes I'll tell you: ✔️ what your product really needs ✔️ where the risks are ✔️ how to get to a working first version Before you commit to a full development.

Choosing the right partner for your Odoo implementation is critical to your success. I have successfully partnered with organizations across different industries to provide optimal and scalable and future-proof solutions, including modern AI integrations to supercharge business workflows. Some of my previous projects: Implementations: 𝑫𝑴 𝑽𝒂𝒏𝒔: Designed and implemented kit-based manufacturing with automated sales-to-production workflows in Odoo for a camper van manufacturer. Successfully integrated inventory, purchasing, accounting, and system dashboards. 𝑳𝒆𝒈𝒂𝒄𝒚 𝑴𝒂𝒌𝒆𝒓 𝑴𝒆𝒂𝒕𝒔: Delivered an end-to-end Odoo implementation covering manufacturing, inventory, planning, purchasing, and quality traceability for a food processing and e-commerce business. Enabled wholesale, retail, and eCommerce sales with fully integrated CRM and accounting modules. 𝑯𝒂𝒓𝒓𝒊𝒔 𝑺𝒊𝒍𝒐𝒏𝒆 & 𝑮𝒍𝒂𝒔𝒔 𝑷𝑽𝑻 𝑳𝑻𝑫: Led an Odoo V17 implementation for a manufacturing client, deploying Inventory, Sales, Purchase, and Accounting modules. Configured and delivered end-to-end HR, Payroll, and taxation systems. Migrations: 𝑳𝒂𝒉𝒐𝒓𝒆 𝑪𝒂𝒓𝒑𝒆𝒕: Migrated the system from v10 to v18 and mapped business processes for Accounting, Manufacturing, Inventory, and Sales. 𝑺𝑩𝑬𝑬𝑪 𝑷𝑽𝑻 𝑳𝑻𝑫: Executed an Odoo upgrade, data migrations, and a full Phase-2 implementation for an industrial hardware and power solutions supplier. Addressed critical priority gaps across accounting, inventory, reporting, and user access rights. Version Upgrades: 𝑫𝒆𝒔𝒔𝒆𝒓𝒕 𝑽𝒂𝒍𝒍𝒆𝒚 𝑨𝒖𝒕𝒐 𝑷𝒂𝒓𝒕𝒔: Conducted technical and functional system audits for Odoo, followed by a system upgrade/migration and implementation. 𝑩𝒂𝒍𝒅𝒘𝒊𝒏 𝑭𝒍𝒂𝒈𝒔: Upgraded Odoo from v16 to v18 and added custom modules with ongoing support. Integrations and Automations: 𝑵𝒐𝒐𝒐𝒓𝒂: Implemented Field Service, Accounting, and WhatsApp integration. 𝑨𝒈𝒓𝒊 𝑨𝒖𝒕𝒐𝒎𝒂𝒕𝒊𝒐𝒏: Configured incoming and outgoing emails for two users using Outlook access tokens. Customizations and Custom Module Development: 𝑭𝒓𝒆𝒔𝒉 𝑳𝒆𝒂𝒇: Implemented an Odoo custom module for geo-location for their services. 𝑹𝒆𝒇𝒓𝒆𝒔𝒉𝒆𝒅 𝑻𝒆𝒄𝒉: Customized field service workflows and dashboards, integrating systems with real-time status and controls. 𝑬𝒖𝒓𝒐 𝑪𝒂𝒓 𝒑𝒂𝒓𝒕𝒔: Provided development outsourcing for their Euro Car Parts (ASV) asset management software. Here’s what you can expect: 𝐀𝐈-𝐃𝐫𝐢𝐯𝐞𝐧 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 to leverage machine learning and LLM integrations for smarter data processing, automated content, and enhanced CRM interactions. 𝐄𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐭 𝐎𝐩𝐞𝐫𝐚𝐭𝐢𝐨𝐧𝐬 to eliminate manual work and data duplication 𝐄𝐧𝐡𝐚𝐧𝐜𝐞𝐝 𝐃𝐚𝐭𝐚 𝐓𝐫𝐚𝐧𝐬𝐩𝐚𝐫𝐞𝐧𝐜𝐲 to make faster, smarter business decisions 𝐒𝐦𝐚𝐫𝐭 𝐖𝐨𝐫𝐤𝐟𝐥𝐨𝐰 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 to save time and increase productivity 𝐒𝐭𝐫𝐞𝐚𝐦𝐥𝐢𝐧𝐞𝐝 𝐂𝐮𝐬𝐭𝐨𝐦𝐞𝐫 𝐉𝐨𝐮𝐫𝐧𝐞𝐲 through better websites, eCommerce, and order management 𝐌𝐢𝐧𝐢𝐦𝐢𝐳𝐞𝐝 𝐝𝐞𝐩𝐞𝐧𝐝𝐞𝐧𝐜𝐞 𝐨𝐧 𝐦𝐚𝐧𝐮𝐚𝐥 𝐭𝐨𝐨𝐥𝐬 𝐚𝐧𝐝 𝐨𝐮𝐭𝐝𝐚𝐭𝐞𝐝 𝐬𝐲𝐬𝐭𝐞𝐦𝐬 𝐒𝐭𝐫𝐞𝐚𝐦𝐥𝐢𝐧𝐞𝐝 𝐂𝐫𝐨𝐬𝐬-𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦 𝐂𝐨𝐧𝐧𝐞𝐜𝐭𝐢𝐨𝐧𝐬 with CRMs, payment gateways, and e-Commerce platforms 𝐓𝐚𝐢𝐥𝐨𝐫𝐞𝐝 𝐎𝐝𝐨𝐨 𝐂𝐮𝐬𝐭𝐨𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧𝐬 designed to fit your workflows while staying upgrade-safe Let's Talk!

Over 10+ years of experience in IT industry, involving in Software Design, Analysis, Development integration and Testing at client and server side in various domains such as transport, finance, etc. My Skills: • Experience in .NET Framework/Core • Experience in Frontend Development using Angular, Blazor, Razor • Experience in VB.Net CRM Development • Experience with C# 10 and .NET 6 and earlier versions • Experience in React, Node, HTML5, JavaScript and CSS • Windows desktop application development experience • Experience with Windows and WCF services development • Experience in Microservice API and REST services and understanding of containers • Experience with WPF GUI Modular application development • Practical experience using MVVM design pattern and DevExpress WPF controls • Exposure in multi-process .NET applications • Relational database experience MySQL & SQL Server • Understanding of message queues and middleware. • Experience with SDLC tools, like Jira, bitbucket, bamboo Confluence, GIT source control system • XAML-based user interface development experience (e.g., WinUI 3, UWP, WPF) • Experience with LINQ to XML • Understanding of XML schemas (XSD) • Attentive to user feedback • Ability to work independently • Git version control • Solid understanding of testing principles and high-quality software • Excellent written and verbal English communication skills. Worked in an Agile team of .NET developers for a fast-paced software development firm. Worked on 10+ SQL database design projects. Improved speed to complete projects by 35% in 15 weeks. Developed and provided maintenance for 20+ .NET websites/applications, using ASP.NET MVC, jQuery, HTML, and CSS. Achieved 100% client satisfaction and on-time completion. Created remote coding and testing environment with bash and Docker scripts.

Top Rated Plus 🏆🏆 | 100% Job Success 📈 | 6,900+ Total Hours Delivered I’m Ashish Singh, a Data Visualization expert and Data Engineer who specializes in building powerful insights, automated dashboards, and scalable data pipelines. I help businesses transform complex, unorganized data into clear, meaningful, and actionable reporting systems. With 5+ years of experience, I design dashboards that reduce manual work, improve visibility, and give leaders the clarity they need to make confident decisions. 🎯I focus on creating dashboards and data systems that are: Accurate and consistent Fast and easy to use KPI-driven and aligned with business goals My work combines clean data visualization practices, strong data modeling, advanced DAX, SQL-driven logic, and solid data engineering techniques to ensure every dashboard tells a clear, insightful story. Whether you need to fix a slow report, automate multi-source refreshes, or convert spreadsheets into a structured KPI framework, I deliver dashboards that are reliable and built for real-world decision-making. I also focus on building clean data layers, supporting data transformations, and refining SQL and Databricks models to enhance overall performance. ✅How I’ve Helped Clients Succeed ✔ Replaced slow, confusing dashboards with fast, accurate, decision-ready reports ✔ Unified scattered data from SQL, Excel, SharePoint & APIs into clean, consistent KPI systems ✔ Automated weekly and monthly reporting, saving teams hours of manual work ✔ Improved financial, sales, and operational visibility through clear, KPI-driven dashboards ✔ Solved complex DAX, modeling, and data transformation challenges for large datasets ✔ Built scalable reporting systems that grow with business needs ✔ Delivered end-to-end data solutions from ETL to visualization, ensuring leadership teams get the insights they need when they need them ✔ Ensured reliable communication, on-time delivery, and dashboards designed for real decisions ✅Industries I Bring Experience From 💼 Finance & Accounting – budgeting, forecasting, profitability KPIs 🛡️ Insurance – claims metrics, policy performance, operational analytics 🛍️ Retail & E-commerce – sales trends, customer behavior, inventory dashboards 📈 Marketing & Media – campaign performance, content metrics, engagement KPIs 🎓 Education – student analytics, academic performance dashboards 🏢 Operations & HR – workforce metrics, utilization insights, process dashboards 🩺 Healthcare – patient metrics, operational KPIs, quality monitoring ✅Tools & Technical Expertise 📊 Visualization & Reporting: Power BI, Looker Studio, Excel Dashboards 🧩 SQL: CTEs, joins, aggregations, analytical queries, modeling for dashboards 📈 Power BI (Advanced Use): DAX, Power Query (M), KPI dashboards, RLS, performance tuning 🐍 Python: Data cleanup, automation scripts, API extraction ☁️ Cloud / Data Sources: Azure, SQL Server, SharePoint, Excel, CSV, REST APIs 🛠️ Data Engineering Support: Clean reporting layers, transformations, Databricks/SQL refinement, lightweight data-warehouse modeling to enhance dashboard performance 🚀Ready to Build Your Next Dashboard or Data System? If you're looking for high-quality data visualizations, automated dashboards, or end-to-end data engineering solutions that deliver real business insights, I’d be happy to help. We can connect anytime to discuss your project.

I build high-performing websites and web applications that help businesses generate more leads, streamline operations, and scale with confidence. Why clients hire me: • 100% Job Success on Upwork • All 5-star client reviews • 10+ years of software engineering experience • Over $30K in projects successfully delivered on Upwork • Founder of Konversa, one of the largest AI website builders in Latin America and the U.S. I specialize in designing and developing modern, scalable websites and custom web applications that are fast, secure, and built around your business goals. Whether you need a landing page that converts, a custom SaaS platform, an eCommerce store, or a complex web application, I deliver solutions that are built for long-term growth and easy to maintain. Core Expertise • Custom Website Development • Full Stack Web Applications • React, Next.js, Vue.js & Modern Frontend Development • Node.js, Laravel, Python & Backend Development • WordPress & Headless CMS Development • API Development & Third-Party Integrations • AI-Powered Features & Workflow Automation • E-commerce Development (Shopify, WooCommerce, Custom) • Performance Optimization & SEO Best Practices • Website Maintenance, Security & Scaling What You Can Expect • Clean, maintainable, and scalable code • Responsive websites optimized for every device • Fast loading speeds and SEO-friendly architecture • Clear communication and on-time delivery • Long-term support as your business grows Over the years, I've helped startups, agencies, and established businesses launch websites and web applications that improve customer experience, automate business processes, and support business growth. My background combines strong software engineering principles with a focus on creating products that not only look great but also perform reliably under real-world conditions. Whether you're starting from scratch, redesigning an existing website, or adding new functionality to an established platform, I can help you build a solution that is modern, scalable, and designed to achieve your business objectives. Let's discuss your project and how we can build a website that delivers measurable results.

Top Rated Plus Python Engineer helping startups build AI agents, backend APIs, workflow automation, and large-scale data extraction systems. My work focuses on building production-ready solutions using Python, OpenAI, FastAPI, browser automation, and scalable scraping pipelines, with experience across AI agents, workflow automation, APIs, and large-scale data extraction. What I can help you with: ✔ AI Agents & OpenAI Integrations ✔ Workflow Automation & Process Optimization ✔ Web Scraping (Playwright, Selenium, dynamic sites, anti-bot handling) ✔ FastAPI Backend Development & API Integrations ✔ RAG Systems, AI Chatbots & LangChain/LangGraph Workflows ✔ Data Extraction Pipelines & Structured Outputs (CSV, JSON, DB) ✔ Browser Automation & Bot Development ✔ Cloud-based Automation & Deployment (AWS, Docker) ✔ Custom Python Scripts & Business Automation Recent work includes: • Built AI-powered workflow systems with automated document processing and response generation • Developed multi-agent architectures and RAG pipelines for intelligent search and retrieval • Created scraping infrastructures handling dynamic websites and structured large-scale datasets • Built trading automation systems, Chrome extensions, and real-time integrations • Developed backend APIs and automation pipelines for SaaS products I prioritize clean architecture, maintainable code, reliability, and solutions that work in production rather than prototypes that fail under scale. Whether you need an AI workflow, automation pipeline, scraper, backend API, or end-to-end Python solution, I focus on delivering systems that save time and support growth. Let’s discuss your project.

I turn complex problems into products that make money. 15 years building SaaS and B2B. Preferred tech stack: * React * Next.js or tRPC * TailwindCSS * shadcn * Kysely (Drizzle, Prisma) * PostgreSQL (Supabase, Neon)

✅ SQL Professional ✅ Python Professional ✅ Oracle Certified Professional Summary: I am a highly skilled data warehouse architect with over 10 years of experience in designing, implementing, and maintaining complex data warehousing solutions. I have a deep understanding of data warehousing architecture and the ability to write complex SQL queries, optimize existing SQL code, and create Python scripts to automate data processing tasks. I am also proficient in making API calls and integrating data from various sources into a central repository. Skills: • Data Warehousing Architecture • Complex SQL Queries • SQL Optimization • Python Scripts • API Calls Experience: • Designed and implemented a large-scale data warehouse for a telecom company, using the latest technology stack and best practices in data warehousing architecture. • Wrote complex SQL queries to extract, transform, and load data from various sources into the data warehouse, and optimized existing SQL code to improve performance and scalability. • Created Python scripts to automate data processing tasks, including data validation, cleaning, and enrichment. • Made API calls to integrate data from external sources into the data warehouse, and implemented a robust data integration strategy to ensure data accuracy and consistency. • Worked closely with stakeholders, including business analysts and data scientists, to understand their data requirements and develop solutions that meet their needs. Certifications: • Oracle certified professional I am a results-driven and detail-oriented professional with a passion for solving complex data problems. I have a strong work ethic and a commitment to delivering high-quality solutions that meet the needs of clients. I am available for part-time and hourly projects and can start immediately.