Master of Computer Science with 25+ years experience. Database Development: Backend & Frontend, SQL, VBA. MS Access, MS SQL Server, MySQL, Developing and supporting DB for Finance/Accountancy, DM, CRM, ERP, ETL etc. API development using Golang and SQL server (MySQL, Postgres; AWS), developing application MS Access frontend + Golang API backend + cloud SQL server. MS Office automation: Access/Exce/Word/Outlook. Macros, VBA, API integration. The key focus is to deliver time-saving, user friendly and easy to use applications.

Greetings! Are you looking for someone who doesn’t just deliver tasks but acts as a growth catalyst for your project? If that caught your attention, then I've achieved my first goal. As an MIS Professional with over 2 years of experience, I specialize in bringing clarity and insights to financial data. My tenure at ITC Limited's Corporate Planning Division imbued me with an insightful understanding of financial analysis ensuring your data isn’t just managed, but harnessed. Here’s how I can add value: • Excel/Google Sheets: Tailoring sophisticated data automation for optimal decision-making. • Financial Analysis: Distilling complex financials into actionable business insights. • Dashboards: Crafting precise, user-friendly dashboards that encapsulate your vital metrics. My Skills : • Excel/Google Sheets • Financial Analysis • Data Visualization - Excel and Google Sheets • Data Management & Analysis • MS Word & PowerPoint Ready to transform insights into action? Let's drive your project forward—together.

"Antonis is a genius. His quality of work, after-sale service and clear explanations are impeccable. Overall, the best experience I have had on UpWork" "This is the kind of freelancer that makes me glad to have joined the platform. Antonis is a consummate professional. Expert, punctual, supportive, flexible, communicative. The money I spent on this contract was some of the best I've ever spent!" "Would highly recommend. ...job...handled immediately and exactly as I wanted" "One of the most reliable contractors I have worked with. " "This man is a magician with algorithms." "Antonis is absolutely brilliant. Really attentive and really quick to get things done." "Technically astute." "Excellent work. Quick turnaround. Great attitude." That's a sample of feedback on completed jobs, and that's the level of client satisfaction I love to provide. Short CV: My programming professional experience spans over 20 years. In the last 10 years I have been working with Python, focusing on Data projects and applications. I'm extremely experienced with Python, scrappers, pandas, numpy and pretty much any related library. Before that, there is one decade's data-analysis and programming experience. I had been working with data collecting and processing tasks of all sorts using Python and VBA or AppsScript for Microsoft Excel/Google Sheets. I use scripts and professional licensed tools for web scraping (automated website reading), PDF scrapping, and editing, OCR (scrapping from image files, using Tesseract and Finereader), file/data management, 230000+ entries on some projects. I can speak directly to API, or read/parse the HTML output/Dynamic DOM tree. I deploy to cloud (I use Amazon Web Services) for scaling and to perform geo-related searches, completing huge jobs in a few hours. Tech Background: I have extensive SYSOPS experience, having deployed numerous projects in AWS (using Lambda, EC2, S3, SQS etc), server-less and server-native. I speak Python (including frameworks as Pandas, BeutifullSoup, Puppeteer and selenium/webdriver, boto3 for AWS, Django for full stack web applications), VB, VBA (for Advanced excel solutions), Google Apps Script (for Google Docs and sheets based automations), Bash (for Linux SysAdmin tasks), JS, C, HTML, JSON, XML, CSS, and Windows Automation languages (i.e. Autoit, pyauto etc). I have used dozens of frameworks, and hundreds of APIs including Google APIs (geolocation), and Twillio for marketing projects. I have delivered working solutions that use hundreds of proxy servers with management and recycling. In the recent years, I have extensively used and implemented OpenAI's GPT APIs to various web and pc applications. On this front, I have also studied and make myself a pro in prompt engineering, to make GPT actually work without hallucinations. This is an ongoing endeavor. I have developed and deployed web applications based on Python (Django), SQL, Bootstrap5. I have done custom-developed genetic algorithms that perform live optimization, solving problems of trillions possible solutions. I offer services rather than products. I'll design the best applicable solution for your task from scratch, run it on my own infrastructure, and deliver the results to you within time. The solution can also be developed as your own custom Web Application or Software as a Service (SaaS), "fully managed" by me to ensure working for as long as you wish. This means a custom made website or web API that do what you want them to do. Hosted, secured, login-ready, will work on any device (Mobile/Tablet/Mac/Windows/Linux any flavor), at reasonable price for development and maintenance. Also, I'm available for support on short notice, as long as our contract is active. I can also comply with a Service Level Agreement (SLA). Through the years and through different projects and roles I have been in touch with hundreds of businesses and different verticals. The solutions I provide require me to understand the scope, and I find it easy to learn about and understand different subjects, be it Internet Marketing, SERP and SEO, Ships and Shipping Business, Automotive, Agriculture, Financial and Tax, Logistics and Production Lines, Electronics and Robotics, on a level that allows me to easily communicate and requirements of new projects and tasks. I'm a fluent English speaker, and I'm available on Upwork chat even when I'm on mobile. This means I will respond to chat messages immediately or within 2 hours, 5 AM to 8 PM (UTC). I am also available at Skype, Slack, or Teamviewer, upon request (After Hire). I'm a business-minded trained professional that you can count to, to get the job done in the requested time, with 100% accuracy and attention to detail. Contact me today to make it work, together.

My specialty is integrating across various Computer Aided Engineering (CAD, CFD) software platforms. I am also an expert at automating CAD modeling jobs using parametric design and APIs. In addition to numerous desktop software programs I also created Unity3D VR and AR Android mobile apps and educational demos. You can rest assured that I can understand and scope your issues as I have fifteen years of experience developing Engineering software for the Architectural, Mechanical and Aerospace industries. My education includes advanced degrees in Aerospace Engineering and Computational Fluid Dynamics. I started programming when I was twelve and by the time I was sixteen I was building file manager applications, database management tools and 3D games under MSDOS - yeah, I'm dating myself here :) I am also very skilled at creating powerful macro-enabled spreadsheets in Excel using VBA. I've also developed solutions integrating Excel with MySQL databases and PHP backends, and with desktop applications. If you need help with software dealing with CAD, BIM, Simulation or Business Intelligence, I can save your company time and money! Services overview: -Automation: Saving man hours (spent on repetitive tasks) through intelligent scripts, custom software and parametric CAD models. -Interoperability: Converting CAD models to Analysis models. Custom translators and plugins. Linking BIM models to web APIs and databases. -Simulation: Computational modeling of physical phenomena. -Computer Aided Engineering (CAE) in the Cloud: Distributed computing using AWS and HPC. Web / VR/ AR interfaces for your CAE software. -Project Management Solutions: Small business project management software creation and deployment. Microsoft Office document customization.

I am a full time software developer automating Microsoft Office (Excel, Access, Word, Outlook, and PowerPoint) for more than 20 years. My main languages are VBA (macros) and C# .NET. I also develop standalone desktop and web applications connecting them with different API, ERP, CRM, QuickBooks, other systems, and databases, including SQL Server. My code is clean, concise, and well organized. My past corporate experience includes positions of financial analyst/manager in mining, utilities, banking, and restaurants. MBA and Ph.D. in Economics. I successfully passed Certified Treasury Professional and Chartered Financial Analyst exams.

I have experience in: - Project managing, - GIS, - Land Consolidation, - Photogrammetry, - LiDAR, - Mapping and - Programming Photogrammetry expert: I was involved in orthophoto production (project manager or expert) for more then 78000km2 of orthophoto maps (plans) and DTM in Serbia and BiH. I did photogrammetric data processing including production line setup, bundle adjustment, digital terrain model generation, quality control of orthophoto and digital terrain model, with images taken with the standard photogrammetric camera and with Drone technology. Point cloud classification and DTM production from point cloud data. GIS expert: I was involved in design, establishment, data preparation (spatial and alphanumerical data - ETL data processing), data integration, data quality control check using different GIS software (AutoCAD, Bentley, ArcGIS, Manifold, QGIS) and different RDBMS (ArcGIS personal database, MySQL, Postgres) for clients who were mostly municipalities. Land Consolidation: setup production line, development consolidation plan that covering new road network, channel network, arable blocks position, working with LC Commision and Board of Participant, preparation report inline with methodology and good practice, Management, and programming. Programming: In all those projects I did programming staff depending on project and possibilities of automatization: for land consolidation project I developed the application which deals with spatial and alphanumerical and covers procedural all aspect of a Land consolidation process; for surveying projects, I developed a lot of VBA function for AutoCAD; for LiDAR projects, I developed the methodology for increasing accuracy of the final delivery using ArcGIS software for processing of LiDAR data. A lot of working time a spend processing alphanumerical or spatial data, and using excel, different RDBMS (mostly MySQL) or writing code (VB or C#, sometimes python) which would give me exactly format and parsing data as I need.

13 Years of experience building professional solutions, including, but not limited to: MS Office Add-ins using COM, VSTO and Add-in Express. MS Office Apps using Office.js library with HTML/CSS/JS Packaging EXE & MSI installers using Wix Toolset Desktop Apps using C#/.NET with WPF/MVVM and WinForms Scripts, Utilities and Automation Tools

👋 I help businesses automate manual processes and connect their tools — building reliable systems with Excel, Google Sheets, VBA, Google Apps Script and custom API integrations. I'm also a finalist of the Excel World Championship (3rd globally in 2024, 7th in 2023). If disconnected tools, repetitive manual work, or messy spreadsheets are slowing you down, I build solutions that fix that — and keep working long after the project ends. 🏆 Competitive Excel background Placing 3rd worldwide in the Excel World Championship means I'm comfortable with complex logic, large datasets, and performance-critical builds. You get solutions that are efficient and robust, not just functional. 🔗 What I specialize in 📌 API integrations — connect CRMs, marketing platforms, payment tools, and internal systems so your data flows automatically 📌 Process automation — replace manual, error-prone tasks with reliable workflows (VBA, Google Apps Script, no/low-code) 📌 Spreadsheet solutions — custom Excel & Google Sheets tools built around your exact workflow 📌 Dashboards & reporting — clear, decision-ready insights pulled together automatically 📌 Fixing & optimizing existing files or systems that are slow, fragile, or hard to maintain 🚀 I also build custom apps and lightweight internal tools / CRMs for teams that have outgrown spreadsheets — reach out if that's where you're heading. 👉 Not sure what should be automated yet? No problem. If a process feels messy, slow, or unclear, I'll map it out with you, break it down step by step, and recommend what's worth automating — and what isn't. ✅ What you get working with me ✅ Time savings — less manual work, more focus on what matters ✅ Accuracy & consistency — fewer errors through automation and validation ✅ Clear reporting — dashboards built for decisions, not decoration ✅ Cost efficiency — better processes instead of more headcount ✅ Tailored solutions — built for your business, not a generic template ⚙️ Examples of projects I can help with 📊 Automated Excel / Google Sheets reporting systems 🔗 API integrations between your tools and data sources (marketing, payments, CRMs, etc.) ⚙️ Custom VBA macros & Google Apps Script automations 💰 Pricing calculators with client-ready PDF generation 📧 Mass email & notification tools 🔄 No-code / low-code integrations between systems 🧩 Custom system-to-system data pipelines 🛠️ Internal tools & lightweight CRM / app builds 🎓 Excel & automation training for you or your team I'm reliable, detail-oriented, and focused on solutions that hold up long-term — not quick hacks. Communication is clear, timelines are respected, and I'll flag improvements beyond the original scope when they'll genuinely help. If you want to simplify your workflows and automate the boring stuff, reach out — I'd be glad to discuss your project and propose the right solution.

I am an Automation Developer with 3+ years of hands-on experience building smart, scalable workflows that eliminate repetitive tasks, boost efficiency, and accelerate business growth. Today, automation is evolving fast with AI at its core and I stay ahead of the curve by .combining traditional automation tools with the latest AI technologies to deliver intelligent, future ready solutions. 🔹What I Bring to the Table End-to-End Automation Expertise From RPA to AI-powered workflows, I design and deploy systems that streamline operations and reduce manual effort. Modern Automation Stack Skilled in UiPath, Power Automate, n8n, Make .com, Zapier, and Google Apps Script integrating seamlessly with tools like Slack, HubSpot, Asana, Monday .com, Twilio, Stripe, Airtable, Excel, and Google Sheets. AI-Driven Automation (Latest Trends) I build next-gen automations using: • LLMs & AI APIs (ChatGPT, OpenAI, AI agents) • Conversational AI (Dialogflow, chatbots) • Intelligent document processing (OCR, Google Vision) • AI-powered decision systems & data workflows API & System Integration Strong experience connecting apps, building custom APIs, and creating smooth data flows across platforms. Client-Focused Approach I prioritize understanding your business needs and deliver scalable, reliable, and easy-to-maintain solutions with ongoing support. 🔹Services I Offer • RPA Development (UiPath, Power Automate) • Workflow Automation (n8n, Make .com, Zapier, GAS) • AI Automation & AI Agents (LLMs, ChatGPT API, smart workflows) • API Integration & System Connectivity • Data Scraping, Processing & Automation • Chatbot Development (AI & rule-based) • Intelligent Document Processing (OCR + AI) • Process Optimization & Documentation 🔹Let’s Build Smarter Systems If you are looking to leverage AI and automation to scale your business, reduce costs, and save time. Am here to help. Let’s connect and turn your workflows into intelligent, automated systems.

With over 20 years in the pharmaceutical industry, I’ve mastered the art of data-driven decision-making to solve complex challenges. Using Excel, Power Query, and Power BI, I transformed raw data into insights that reduced packaging inspection lead times by 50% in a Six Sigma project and saved $200,000 in procurement within a year. Data isn’t just numbers—it’s the story behind every success. My expertise in VBA and Python has automated processes, streamlined operations, and uncovered trends that others might miss. When faced with expensive production machinery, I combined data analysis and innovation to design alternatives at just 10% of the cost, proving that insights fuel ingenuity. From creating actionable dashboards to crafting cost-effective tech solutions with Arduino and Raspberry Pi, I bridge the gap between data and transformation. My story is one of using numbers not just to measure progress, but to drive it. Let’s uncover the power of your data together.