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📊 Dashboards don’t have to be ugly or complicated! I’m passionate about data visualization, and with 100+ Power BI reports developed over 5+ years, I help clients build dashboards that are: • 🎨 Well-designed • 🖱️ User-friendly • ✅ Accurate • 📈 Actionable I work across the entire data pipeline — from capturing and storing data, through cleaning and transformation, all the way to delivering clear, reliable reporting in Power BI. How I approach dashboard projects: 🕵️‍♂️ Get familiar with the data & perform quality checks – missing data, outliers, inconsistencies. 📝 Share a mockup – visuals, layout, navigation, so you know the direction before the full build. ⚙️ Build and test the final dashboard – ensuring accuracy and proper functionality. 📦 Handover – including documentation, training, and optional walkthroughs. I also specialize in creating Power BI themes and visual templates to give your reports a consistent, professional look across projects. 💡 I provide training sessions or consultations to help your team fully understand, maintain, and get the most value from the dashboards I deliver. ❓Why work with me: ✅ End-to-end data pipeline expertise (source → storage → report) ✅ Power BI Certified (PL-300), Azure Fundamentals (AZ-900) ✅ Data Storytelling Challenge Winner ✅ Skilled in SQL and DAX for data modeling and transformation ✅ Python & PySpark for data processing, automation, and ML workflows ✅ Proven track record delivering accurate, business-ready reporting solutions

Thanks for looking at my profile. Please DON'T consider hiring me if: - you are looking for beginner/mediocre developer who will do the job for you as cheap as possible - think you are the smartest person in the universe (neither am I) - don't want to discuss/answer questions, share a wider context about your project. I want to provide my services as I if was your business partner - my work doesn't create more value for you than your investment in my work ------------------------------------------------------------- Here are feedbacks from my previous clients: "Everything was done perfectly." "Zdenko has strong Python coding expertise and good architectural knowledge of the Google Cloud Platform. He provided valuable architectural and project guidance. Zdenko was responsive provided excellent documentation with his insights that were valuable." Zdenko was a great developer to work with. He is very knowledgeable of Google Could Platform and understood the task which needed to be done without excessive guidance. I would highly recommend Zdenko to anyone looking to develop a data pipeline in the cloud. "Fantastic person and hard working! He delivered quality work and knew exactly what was needed to complete the job." Working with Zdenko was incredibly easy, and he produced exactly the results we were looking for. Communication was excellent via messaging on UpWork. I would highly recommend Zdenko. "Great Job! He knows GAE very well and was able to do everything we asked for. great python developer. yet again we are going to hire him immediately" "He let me know exactly what I needed to give him, and he didn't waste any time in getting it done. He also knew to do a couple of things that I didn't explicitly ask him to do when we started, but which clearly needed to be accomplished as part of the larger task." ------------------------- During my years as a software consultant, I have realized that communication with the client is most crucial. That's why I make every effort to understand the requirements of the task that's needed to be done, remove ambiguities, make a thorough analysis, suggest a solution, and implement. For several years now I'm focused on deploying web apps and big data pipelines on Google Cloud Platform and using its products (Google App Engine, Cloud Run, Cloud Functions, Google Compute Engine, BigQuery, Dataflow, etc). I write about it on my personal page and answer questions on Quora My expertise is in programming Python web/data applications. I use mostly Django, Flask, Webapp2 frameworks. Besides that, I have knowledge of other web technologies (HTML, CSS, Javascript...). I am very open to new challenges and problems. I prefer working on Linux. I am constantly improving my skills and knowledge in all areas. Experience with scrapping e-shops, real estate websites using BeautifulSoup I'm not a frontend guru, if necessary I can work with Bootstrap and a little bit of Javascript

I am an experienced consultant specializing in research and development of Robotics systems. With over a decade of professional experience in robotics, I strive for customer success and delivering products as quickly as possible. As you will see from my profile, I work mostly with wheeled mobile robots and drones, often utilizing Robot Operating System (ROS). In my view, good practices and iterative development are key to creating high-quality products. When I'm working with you, I'll make sure to understand your product, and make sure that everything I'm delivering for you is aligned with your mission. I take excellent care of honing my skills and staying up to date on the current state of Robotics, thus each week I release a new issue of my Weekly Robotics newsletter. Below you will find some highlights of my expertise: ROS: * Navigation stack * Localization stack * ros_control * cartographer, slam_toolbox, AMCL * Deploying ROS on custom robotic solutions * Developing drivers for sensors and actuators Drones: * Px4 flight stack * ArduPilot (ArduCopter, ArduRover) * Developing drivers for custom sensors for the above flight stacks * Using ROS on a companion computer for high-level control Sensors experience: * ToF sensors (single points and arrays) * Ultra Wide Band (UWB) localization * RTK GPS * Single and multiplane LiDARs (Hokuyo, RPLIDAR, Livox, Ouster OS-1) * IMUs (RazorIMU, Bosch BNO055, PhidgetSpatial, Xsens) * Tracking modules (Realsense T265) * 3D Cameras (Realsense D435i)

Senior AI & Full-Stack Certified Engineer Python| Django | Data Sciencе and МL| Vue.js | Next | Nuxt | Node.js | React Are you looking to build an advanced, AI-driven platform with an ultra-fast, seamless user experience? I specialize in bridging the gap between cutting-edge Artificial Intelligence and high-performance web applications. With over 7 years of commercial experience, I am a Certified Vue.js & Node.js Expert with deep Backend engineering skills (PHP, Node.js, REST APIs). My core strength is developing scalable full-stack architectures and integrating intelligent Generative AI features, such as custom AI chatbots, multi-provider systems, automated quoting tools, and smart user workflows. Where I Bring the Highest Value: - AI Integration & Features: Building AI-driven SaaS marketplaces, implementing smart interactive chatbots (ChatGPT API), and automating complex business logic using AI tools. - Advanced Frontend Engineering: Creating high-performance, responsive UIs with Vue.js (2/3), Nuxt.js, React.js, and Next.js. Expert in SSR optimization, state management (Vuex/Redux), and TypeScript. - Scalable Backend & Infrastructure: Designing robust backend systems with Node.js/PHP, managing complex user databases (MongoDB, PostgreSQL, MySQL), and handling legacy-to-modern migrations without downtime. Selected Project Highlights: - AI-Driven SaaS Marketplace: Engineered a complex multi-provider platform from scratch, integrating automated quoting tools, booking calendars, and custom AI chatbot interfaces. - Enterprise High-Load Platforms: Successfully migrated legacy webinar platforms to Nuxt-based static architectures, significantly accelerating page load speeds, enhancing Core Web Vitals, and maximizing SEO. - Subscription-Based Web Apps: Built secure, scalable social networking and educational platforms tailored for content monetization and seamless i18n internationalization. Why Choose Me: - 100% Job Success & Top Rated Plus: Backed by the technical excellence of the Greenice team, ensuring top-tier communication, clean code structure, and zero-crash deployment. - Clean & Scalable Code: I don’t just build features; I construct architectures that grow with your business and remain easy to maintain. Let’s elevate your platform with powerful UI and smart AI capabilities. Click "Invite to Job" to discuss your project requirements and technical stack!

🚀 AI & Automation Consultant – Expert in Intelligent Communication Solutions Twilio I'm part of the Twilio Champion program with hands-on experience managing and delivering complex Twilio implementations worldwide, both as a Project Manager and Developer. I can help you design and implement end-to-end solutions with: Twilio Flex, IVR, Contact Centers, SMS & Voice Solutions AI-powered Chat & WhatsApp Bots, and smart Agent AI systems Deep 3rd-party integrations tailored to your business Real-time messaging across Chat, WhatsApp, and more In addition to Twilio, I build cutting-edge AI voice and chat agents using ElevenLabs and Vapi for dynamic voice interaction capabilities—ideal for creating lifelike, intelligent agents that can truly handle conversations and take autonomous actions like booking calendar slot, updating CRM etc.. 💬 Looking for a simpler out-of-the-box text solution? As a Crisp.chat Partner and Respond.io Partner, I also offer fast setups across channels like Webchat, Instagram, Messenger, WhatsApp, and many more. Whether you're exploring a new idea or scaling your current setup, let’s chat. I'm available for short, medium, or long-term projects. 📩 Get in touch and let's bring your vision to life.

IT specialist experienced in software analysis and implementation of performance improvements, advanced database application development, implementation of information & reporting systems. Developer of backend services, desktop and web applications, experienced in mainly Linux but also Windows server environments. Worked since 2004 for 7 years as Senior Technical Consultant for Infor and participated in many international projects mainly focusing on relational data transformation to OLAP systems. Since 2012 a Bottleneck Team Lead in an international team responsible for software analysis and implementation of performance improvements on various platforms (mostly C/C++, Java & DBs). Since 2013 a member of a team that develops Amazon Elastic Compute Cloud (EC2) management web service used by a company with 5000+ employers, Amazon WebServices (Java API) expert. Since 2015 at Elance which later became part of Upwork. Member of team responsible for time tracking and reporting backend services. Designed and implemented ETL services mainly in Java (dropwizard) with Vaadin UI. Designed relational db structure for reporting and also time tracking. From 2018 leading the team. I like well sized scrum teams that can focus on work effectively. I enjoy and like to utilize the potential of my teammates. And the same I do with resources I use (database can usually work much better than one expects if used correctly). Favorite db: Postgres Favorite programing language: Any that can work well with databases Favorite OS: Linux