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✔More than 8 years of experience in GIS development, spatial data analysis, geography projects. ✔Extensive experience on high-impact projects with esteemed organizations, such as INTERPOL, European Space Agency, European Environmental Agency, and EU Satellite Centre. ✔Highly innovative and resourceful. Technical proficiency combined with creative problem solving. ✔Long term relationships with over 50% of my clients Services: ✔GIS development | Geospatial analysis | Workflow automation Python development for geospatial applications, ArcPy & ArcGIS toolboxes, QGIS plugin development, OpenStreetMap, Google Maps API, Mapbox ✔ Opportunity Mapping | Spatial Lead Generation | Location Intelligence Mapping of supply and demand for business expansion opportunities, site selection, real estate intelligence ✔ Geospatial Data Retrieval & Engineering Spatial data acquisition, processing, and pipeline development, ETL workflows for vector/raster datasets, data wrangling from APIs, geocoding satellite imagery, and open data sources

I am keen engineer with an interest in multiple sciences, currently working full-time on Upwork and available mainly around GMT working hours 8am-6pm. My competences include: -Thermal Fluid System Engineering. -Design services. -Computational Fluid Dynamics [CFD]. -Stress Analysis [FEA] for coupled CFD analysis. -Thermal analysis -Data Analysis -MS Excel Workbook Building. -Experienced Consultant. -Technical Writer. As I mostly work with opensource software 5% of my earnings goes toward the software developers, The Software I am using at the moment include: -OpenFOAM -Elmer -Salome meca -PrePoMax -FreeCAD -OpenModelica -Python -MS Excel -Energyplus

Results-driven professional with 6+ years of experience in audit, accounting, and tax compliance, now specializing in tax technology and data-driven automation. Currently at Deloitte, delivering ERP-based automation solutions for Pillar II compliance through platforms like SAP PaPM and Oracle EPM. Pursuing a Master's in Big Data Analytics, developing expertise in data wrangling, reporting automation, and enterprise system optimization. Strong foundation in regulatory frameworks, data transformation, and cross-functional collaboration - passionate about applying analytical and technical skills to support innovation and growth in modern business environments. DATA & ANALYTICS TOOLS Excel (Advanced) | Alteryx SAP PaPM | Oracle EPM Power BI | Tableau (basic) SQL | Python | R (basic) ERP & ACCOUNTING SYSTEMS EpsilonNet | SoftOne Entersoft | Prosvasis ERP Data Mapping & Integration PROCESS & DATA HANDLING

As a CREST/Offensive Security (OSCP) Certified Penetration Tester, OffSec Web Expert (OSWE) and cybersecurity professional with 5 years of experience and more than 100 successful penetration tests completed, my purpose is to protect businesses and individuals from the ever-increasing cyber threats that we face in today's digital age. I believe that everyone deserves the peace of mind that comes with knowing their digital assets are secure and their data protected, and I'm passionate about using my expertise to make that a reality. With extensive experience in offensive security, I specialize in conducting Web Application, Mobile Application, Internal/External infrastructure, and Wireless infrastructure vulnerability assessments and penetration testing exercises. By working closely with organizations, I develop tailored solutions that meet their unique needs and help them achieve their security goals. But my work isn't just about technical expertise - it's about empowering businesses and individuals to achieve their objectives with confidence. I'm committed to building strong relationships with the organizations I collaborate with, so that I can truly understand their needs and work collaboratively to create effective solutions. My focus is always on providing value to those I work with. ✅ I have conducted Penetration Test, Vulnerability Assessment and delivered professional reports to companies complying with: ► CREST standards ► Offensive Security (OSCP) standards ► OWASP Top 10 Vulnerability ► OWASP API Security Top 10 Vulnerability ► OWASP Mobile Security Top 10 Vulnerability ► CWE Top 25 Most Dangerous Software Errors ► ISO 27001 Penetration Testing ► General Data Protection Regulation (GDPR) ► Common Vulnerability Scoring System (CVSS)

🔹 Full Stack Developer & Web Scraping Expert | AWS Certified Architect | TypeScript, Next.js, Python, PostgreSQL, Redis, Docker I’m an accomplished Full Stack Developer and AWS Certified Architect with a Master’s in Electrical and Computer Engineering, passionate about delivering scalable, high-performance solutions. With deep expertise in TypeScript, Next.js, Python (FastAPI, Django), PostgreSQL, Redis, and Docker, I build robust web applications and APIs. My specialized proficiency in web scraping using BeautifulSoup, Scrapy, and Selenium enables me to extract and process complex data from dynamic, JavaScript-heavy websites with precision. Recent Highlight: DFSHero.com I’m currently leading the development of dfshero.com, a Daily Fantasy Sports platform delivering real-time analytics and seamless user experiences: Frontend: Built with Next.js (TypeScript, React) for a dynamic, responsive UI. Backend: Powered by Python FastAPI for high-performance APIs, with MongoDB and PostgreSQL for flexible and relational data storage. Infrastructure: Hosted on AWS (ECS, RDS, ElastiCache) with Redis caching and Docker containerization, orchestrated via CI/CD pipelines (GitHub Actions). Features: Real-time analytics, secure JWT authentication, and scalable, cached endpoints. This project showcases my full-stack expertise, DevOps capabilities, and adaptability to modern frameworks like NestJS, which I’m actively upskilling in. Web Scraping Expertise I excel in extracting and organizing large datasets from complex websites: Tools: Proficient in Python’s BeautifulSoup, Scrapy, and Selenium for scraping dynamic, JavaScript-rendered pages. Skills: Strong command of HTML, CSS selectors, and data parsing, ensuring clean, structured outputs in formats like CSV or JSON. Experience: Successfully delivered multiple scraping projects with a focus on data integrity, preprocessing, and client-specific requirements, earning consistent 5-star reviews. Why Choose Me? Technical Mastery: Expert in TypeScript, Next.js, Python, PostgreSQL, Redis, and Docker, with AWS certifications (SysOps, Developer, Architect) for scalable cloud solutions. Rapid Learner: Quickly adapting to new tools like NestJS to meet project needs. Reliable Delivery: 40 hours/week availability (8:00 AM–10:00 PM EEST, UTC+3), solo work style, and clear communication for focused, high-quality results. Proven Track Record: Positive client feedback for full-stack development and web scraping projects. I’m eager to drive your project’s success, whether it’s building a cutting-edge web app or extracting critical data. Let’s connect to discuss your needs, review my work on dfshero.com, or explore code samples. Ready to start immediately! 📩 DM me to discuss your project today!

Most businesses are held back by their own manual bottlenecks. I fix that. With my CTO experience, I architect the entire technical ecosystem required to move your operations from "one-by-one" tasks to mass-production automated systems. Leadership & Experience: - CTO experience: Lead Systems Architect. Built 40+ agencies to date with Voice/Chat agents for automated appointment booking. High-volume scaling. (Pioneered the agency framework for ScaleLogix, helping partners generate $25K/month in combined revenue). Managing 20+ enterprise clients, implementing AI system with one "Deploy" Button, via our custom platform. The 30-Second Pitch Hey, I'm Spilios. I turn technical complexity into organized, reliable architectures. I’ve spent the last 3+ years moving research into real-world production. Whether it’s a simple automation or a large-scale project, my goal is the same: finding the exact level of technology your business needs and delivering it in weeks, not quarters. Real Wins, Real Numbers - AI Consultant Company: Architected systems generating $55K+ per month in revenue across partner agencies. - Agency Growth: Built 40+ automated agencies using Voice/Chat agents and SDR systems. - Client Success: Currently scaling operations for 40+ active companies - Research: Won 2nd place in an NLP competition and beat state-of-the-art benchmarks in medical research. What I Actually Build (Service Packages) I provide tailored solutions across various niches, from Real Estate and E-commerce to SaaS and Lead Gen: - Agentic Automations: Self-annealing workflows developed with Claude Code that learn and adjust to keep your business running 24/7. - Knowledge Systems: Custom RAG systems that allow your team (or customers) to "chat" with your proprietary data. - Voice & Outreach: SDRs and Voice Agents (Retell/Vapi) that handle high-volume calling and booking. - Full-Scale Development: Website, Application, and Platform development built for mass-production grade performance. In my Arsenal, I use a precision-selected stack to ensure high reasoning and rapid deployment: Models: OpenAI GPT-4.1 (for complex thinking and embeddings) and Anthropic Opus 4.5 (for sophisticated coding and logic tasks). - Logic: Claude Code, Cursor, LangChain. - Voice & CRM: Vapi, Retell AI, GoHighLevel. - Data & Infrastructure: Pinecone, Supabase, Antigravity, Lovable. - Automation: n8n (for complex, self-healing workflows). The Approach: I’m a big believer in "measure twice, cut once." Before we dive into the code, I make sure the architecture actually fits your specific business goals. My goal is to build something clean and reliable that works on day one and continues to grow with you without creating a mess of technical debt. There is a lot of hype in the industry right now, and it’s easy to over-engineer things. I try to stay grounded: sometimes you need a sophisticated agentic workflow, but often a few lines of clean code is the better, more profitable choice. I’m here to help you find that balance so you get the best return on your investment. After several years of building these systems behind the scenes for my own ventures, I’m excited to bring that experience to Upwork. I enjoy handling the full strategy so you can focus on your business while I ensure the technical pieces fit together perfectly. If you have a project in mind or just want to explore what’s possible, feel free to shoot me a message. I’m always happy to have a quick discussion to see if I’m the right fit for your needs. P.S. I’ve spent the last 3+ years solving the "impossible" technical hurdles that come with scaling. I'd love to help you solve yours.