I help founders and businesses launch new digital products, take over existing codebases, and rescue applications that have become difficult to maintain. ✱ 15 years of software engineering experience, from startups to large technology companies ✱ 8,800+ tracked hours on Upwork with consistent 5-star feedback ✱ Tens of designed and delivered mobile products from initial architecture to store release and long-term maintenance I can help you with: 🔹 MVP and production app development from scratch 🔹 Flutter apps for Android, iOS, web, and desktop 🔹 Native Android development with Kotlin and Jetpack Compose 🔹 Full-cycle delivery: planning, design support, architecture, development, testing, and release 🔹 Mobile apps for existing websites, SaaS platforms, and APIs 🔹 Existing project takeover, modernization, and long-term maintenance 🔹 Crash fixes, broken builds, performance issues, and release blockers 🔹 Firebase, APIs, payments, subscriptions, push notifications, analytics, and AI features 🔹 Google Play, App Store, web, and desktop deployment You will receive clear milestones, regular test builds, daily progress reports, and early communication about risks or scope changes.

I build mobile apps — the real kind, native, shipped to the store, used by actual people — and lately the AI systems inside them. I've been doing the first for 20 years and the second long enough to know where it actually pays off. I'm Expert-Vetted on Upwork (top 1% of talent), with 100% Job Success, 5,700+ hours, and $200K+ earned. Behind that is 20+ years in software — a decade architecting enterprise systems at Accenture for Fortune 500s, then CTO of a SaaS startup I scaled from 3 to 30+ engineers and took to consumer scale. I'm completing Stanford's AI Professional Program now. What you get is a CTO-caliber technologist who never stopped writing production code. I work two ways, depending on what you need: ⸻ * Mobile Apps — zero to App Store * (fixed-price) You have an idea or a validated concept; I deliver the finished app, live in the App Store and Play Store. Architecture, design, frontend, backend, deployment, and the part most people underestimate — actually getting through store review, native builds, push, Live Activities, the works. I've shipped 20+ mobile apps, several used by hundreds of thousands of people, and I handle the whole build personally. Shipping a native app to a store is a different discipline than deploying a web app, and it's the discipline I've spent years in. * AI Systems and other complex software — design & build * (hourly) Production AI/LLM systems, not prototypes. My recent work is a multi-vendor LLM pipeline that benchmarked 21 model-and-strategy combinations across Claude, GPT, and Gemini over 54 recipe sources in 7 countries — automated quality scoring against an Opus gold-standard reference, and cost tuned across a 150x price spread down to the best quality-per-dollar. The hard part of AI work isn't calling an API; it's knowing where AI actually earns its keep, which model fits which job, and how to architect a pipeline that holds up in production. That's what I do, then I build it — often straight into the mobile products above. ⸻ The background behind that: 10 years at Accenture on large-scale systems for Fortune 500s in healthcare, telecom, oil & gas, and retail. Then CTO at a SaaS startup — engineering scaled 3 to 40, a multi-service platform shipped with payments, identity, and real-time processing running at consumer scale. 📎 Stanford — AI Professional Program (completing August 2026) 📎 Kellogg — Product Strategy 📎 TOGAF Certified Enterprise Architect ⸻ Native Mobile (React Native / Expo, App Store & Play Store delivery) · TypeScript/JavaScript · LLM APIs (Claude, GPT, Gemini) · Prompt Engineering · Multi-Model Pipelines · React · Next.js · Node.js · Supabase · PostgreSQL · AWS · Solution Architecture

Passionate Flutter developer with 6 years of experience in turning ideas into meaningful mobile experiences. I believe every app has a story to tell, and I’m here to help yours shine through smooth, intuitive design and flawless functionality. With a focus on both performance and user experience, I craft apps that users love to interact with. Let’s bring your vision to life and create something that not only works but feels right at every touch.

Congrats !🙌 You’ve found the developer for your: ➖Internal applications ➖Customer-facing applications You DESERVE more than a developer but someone with the technical consultations you'd need to help you navigate mistakes & pitfalls it takes to make your ideas a reality Why ⁉️ Why should you believe I am well-suited to help you? 🏆Over 5 years of experience with 30+ live apps from various niches 🏅 3 AppSheet Certs : Building Apps With AppSheet ( Foundation, Implementation & Automation) 🏅 Google Business Intelligence Certificate 🏅Build Apps & Websites with Firebase. 🏅 Flutter Development 🏅Generative A.I What I offer: 👇👇👇 ✅Development of internal tools / apps for your business using AppSheet/Flutterflow ✅Development of customer-facing tools / apps for your business using AppSheet/Flutterflow ✅ Optimization & Fine-tuning of ur app using best standard practices AFTER you've tried yourself ✅API Integrations with your app via 3rd party tools like Make, Zapier, Stripe etc ✅Clear communication via video-recordings, meetings & layout diagrams ✅Cross-platform development (Android/IOS/Web) ✅Data Cleansing & Migration ✅Data Visualization (via Dashboard or Looker Studio) ✅Database Design ✅Process Automation of SOP My Toolkit Of Expertise Includes: 🔧Google AppSheet 🔧Flutterflow 🔧Glide AI 🔧Google Sheets 🔧Supabase 🔧Airtable 🔧Firebase 🔧Make.com 🔧SQL 🔧 Zapier 🔧SQLite 🔧AppScript🔧Google Data Studio/Looker ➖Service Industries I've Served 🗞️🧑‍🎓 📈Real Estate, 📈Electricians,📈Construction,📈Scientists, 📈Health Care, 📈Medical Equipment, 📈Facility Mgt, 📈Chefs 🧑‍🍳,📈Hotel Mgt🛀, 📈Field Service timesheet & CRMs Well, you read it to this point. 🫵😜Click to invite me & get a free prototype/MVP of your project or scroll below for more 👇👇👇 Best Regards, Oginni O.| Sholz

I’m a senior Unity and C# developer who builds games, prototypes, tools, and real-time 3D applications. If you're working with me, you're getting accountability, creativity and technical excellence. I use a cutting edge modern Unity workflow combining years of experience, the Unity MCP plugin and flagship models from Anthropic, Cursor and OpenAI. You're paying for a seasoned veteran using the most effective tools who can look at any line in your code and explain to you in plain english what it does and why it does it. What I can help with: Unity Apps / C# game development Gameplay systems, UI, tools, prototypes, production features, debugging, polish, optimization, and platform-specific fixes for PC, Android/iOS, WebGL and VR. AI-enabled games and interactive systems NPC dialogue, local model integration, procedural quests, AI-assisted content generation, narrative engines, runtime data pipelines, and practical AI features that fit inside an actual Unity project. Backend and service integration Databases, APIs, player/user data, analytics, multiplayer services, auth flows, admin tools, live content, and external hardware or device inputs. Technical rescue work I’m comfortable entering messy projects, finding the real problem, stabilizing the build, cleaning up broken systems, and giving the client a clear path forward. Recent work in 2025-2026 has included Mobile and PC strategy, action and MMORPGS, custom Unity tools, AI-powered narrative/gameplay systems, WebGL and VR projects, Android/iOS app updates, ad/IAP integrations, hardware-input arcade experiences, realtime Windows companion apps, and large-scale experimental game prototypes. If you’re serious about building something awesome, I’m happy to work hourly or by milestone depending on the shape of the project. Please get in touch!

As an AI Engineer, I specialize in designing and deploying intelligent systems that transform data into actionable insights and automation. With expertise in machine learning, natural language processing, computer vision, and generative AI, I build end-to-end solutions that are scalable, efficient, and tailored to business needs. My skills include: Custom AI/ML Models – from data preprocessing to training, optimization, and deployment. Generative AI Applications – LLM fine-tuning, chatbots, and content automation. Natural Language Processing (NLP) – text analysis, sentiment detection, embeddings, and conversational agents. Computer Vision – object detection, image classification, and OCR pipelines. MLOps & Deployment – model serving, API integration, and cloud-based AI solutions (AWS, GCP, Azure). I take a results-driven approach, ensuring every solution not only works in theory but also delivers real business impact. Whether you need a proof of concept, production-ready AI system, or optimization of existing models, I can help bring your vision to life. Let’s collaborate to build intelligent, future-ready solutions that give your business a competitive edge.

Hi! Let’s have a free call to see if we’re a match. 𝗜 𝗯𝘂𝗶𝗹𝗱 𝗶𝗻𝘁𝘂𝗶𝘁𝗶𝘃𝗲 𝗺𝗼𝗯𝗶𝗹𝗲 𝗮𝗽𝗽𝘀 𝗮𝗻𝗱 𝗶𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗲 𝗰𝘂𝘁𝘁𝗶𝗻𝗴-𝗲𝗱𝗴𝗲 𝗔𝗜/𝗠𝗟 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀. 🚀 With 10+ years of experience in E-commerce, Tech, and Education, I bring a unique blend of software development, data science, and leadership expertise to every project. I love building impactful solutions and I am passionate about helping others in reaching their full potential. That has led me to work in a variety of roles over the last years: ⭐️ Data Scientist, delivering E2E projects ⭐️ Project Manager and Team Lead for cross-functional teams ⭐️ App and Website Development ⭐️ Interview Preparation for DataScience interviews (I’ve been plenty on both sides of the table) ⭐️ Career and Leadership coaching, also outside of Tech Fluent in German, Spanish, and English, I cater to clients worldwide. Whether you need expert coaching or a custom solution for your business, I’m here to help you succeed. Let’s connect and discuss how we can achieve your goals together! ---------------------- Please find below some more info, specifically about how my team operates in creating mobile applications. Find more details on our website jd55creations.com. 𝐖𝐡𝐚𝐭 𝐰𝐞 𝐨𝐟𝐟𝐞𝐫: ⭐️ End-to-End Mobile App Development: From concept over design to deployment, we build high-performance and secure mobile applications using Flutter for both iOS and Android platforms. ⭐️ AI Integration: We integrate AI models, such as GPTs, recommendation systems, or classification/regression models, to enhance your app with intelligent, data-driven features. ⭐️ Cloud Integration: We seamlessly integrate cloud services like Firebase for authentication, real-time databases, push notifications, and cloud functions, ensuring secure and scalable app infrastructure. ⭐️ API Integration: I have worked with many APIs such as ChatGTP, Vertex AI models, or different ticketing platforms (Eventim, Pretix). 𝐇𝐨𝐰 𝐰𝐞 𝐝𝐨 𝐢𝐭: ⭐️ Client-Centered Approach: We focus on thoroughly understanding your business needs, defining success criteria, and delivering custom solutions aligned with your goals. ⭐️ Iterative Design & Development: Our process includes project scoping, design creation, rapid iterations, and user feedback integration for continuous improvement. ⭐️ Maintenance & Scalability: Our apps are built for easy future updates and new features, ensuring seamless scalability and maintainability. 𝐌𝐲 𝐩𝐫𝐞𝐟𝐞𝐫𝐫𝐞𝐝 𝐭𝐞𝐜𝐡 𝐬𝐭𝐚𝐜𝐤 𝐢𝐧𝐜𝐥𝐮𝐝𝐞𝐬: ⭐️ Figma for Design ⭐️ Flutter for cross-platform development ⭐️ Firebase for scalable cloud solutions and authentication ⭐️ Vertex AI and Python (TensorFlow, pandas, scikit-learn etc) for preparing, training and deploying AI models ⭐️ BigQuery for large-scale data analysis and processing ⭐️ Docker and Google Kubernetes Engine for deploying containerized workflows and scalable pipelines. 𝐋𝐚𝐧𝐠𝐮𝐚𝐠𝐞𝐬 𝐒𝐩𝐨𝐤𝐞𝐧: ⭐️ German native | Deutsch als Muttersprache | Hochdeutsch ⭐️ Spanish bilingual / Español bilingual | He vivido y trabajado en Español desde hace 10 años ⭐️ English bilingual

Need a product built (or rescued from a failing development team)? I will build your MVP in less than a month. Having built hundreds of products over the past 20 years, I can confidently guarantee that whatever you're building, I can deliver it on time and to top industry standards - fast, reliable, secure and scalable. Hi, I'm Adam, an experienced solutions architect, CTO, team lead, and cybersecurity expert based in London, UK. I'm a Chartered Engineer (CEng) and a Chartered IT Professional (CITP), I and also hold a range of industry leading cyber security credentials including the CISSP, CISA, CISM, OSCP and OSCE. With a proven track record of success, I've worked with hundreds of clients worldwide, guiding their projects from idea stage through to completion, launch and growth. My experience, coupled with my deep technical expertise, allows me to be very hands on and practical when needed, and consistently deliver amazing results. If you've already got a product in development or in the market but you're struggling with missed deadlines, poor quality work or technical problems that your team are struggling to solve, I can help. Clients commonly engage me to: - Hire and/or manage their technical team - Design and build technical solutions - Help solve complicated technical problems - Help scale a technical product to support and meet business growth - Assess or rescue failing projects - Explain and help mitigate business threats and risks (e.g. security, disaster recovery, backups and redundancy) - Provide an audit and unbiased technical opinion and "explain the options" I enjoy working with startups, fast moving projects, and solving complex challenges.

Who I Work With 🎯 I partner with ambitious founders and business owners who need a technical co-pilot to build revenue-generating software systems from the ground up. Whether you're launching your first SaaS product or need custom automation that directly impacts your bottom line, I deliver production-ready solutions that scale. What I Build 🚀 My specialty is transforming business challenges into elegant software solutions. I've successfully launched complete applications for solo founders in 8 weeks or less, with one client acquired right here on Upwork who went from concept to market in record time. My core focus areas: • Full-Stack SaaS Development – Complete application builds using Next.js, React, .NET, and SQL. I handle everything from database architecture to user interface design. • Revenue-Driving Marketing Automation – Custom systems that automate lead generation, CRM workflows, and sales processes. These aren't generic integrations; they're tailored solutions that give you a competitive edge. • Business Process Automation – Eliminating manual work and streamlining operations through intelligent automation that saves hours every week. • End-to-End Web Development – From landing pages to complex web applications, I build fast, secure, and user-friendly digital experiences. Technical Arsenal 💻 Languages & Frameworks: Next.js, React, .NET, SQL, JavaScript, TypeScript Specializations: SaaS Architecture, API Development, Database Design, CRM/Marketing Automation, AI Integration, Blockchain Applications Platforms: Zapier, Make, n8n, ClickUp, HubSpot, Salesforce, custom API integrations Why Clients Choose Me ⭐ I'm your one-stop technical solution. No coordination with multiple freelancers, no offshore communication gaps, no quality surprises. You get a skilled US-based developer who understands both the technical requirements AND the business outcomes you're after. My clients stick around because: ✓ I deliver premium quality work without the agency markup ✓ I communicate clearly and keep projects moving forward ✓ I build for the long term, not just the immediate deadline ✓ I think like a founder, not just a developer The Results 📈 With $25K+ earned on Upwork, numerous successful launches, and several years of experience as a solo freelancer, I've proven I can take projects from zero to deployed. My recent work includes building complete MVPs that attracted seed funding, automating sales processes that saved 20+ hours per week, and integrating complex systems that previously required manual data entry. Let's Build Something Great 🤝 If you're serious about quality and looking for a developer who treats your project like their own, let's talk. I work best with clients who value craftsmanship and understand that the right software investment pays for itself many times over. Send me a message with details about your project. I'll respond with honest feedback about whether I'm the right fit and how we can move forward together.

I’m Emir Borovac — a Senior Python Engineer & AI Specialist with deep experience in automation, reverse engineering, scraping, machine learning, and building high-performance backend systems. I've reverse-engineered platforms like Instagram, built AI data extraction pipelines, and created custom automation systems that save 40+ hours of manual work weekly. If you're looking for a results-driven, highly skilled developer who delivers on time — let’s connect! 🧰 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗣𝘆𝘁𝗵𝗼𝗻 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 ✔ Flask, FastAPI, Django, Celery ✔ Custom APIs, RESTful + GraphQL ✔ Backend Architecture & Scaling 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗶𝗼𝗻 & 𝗦𝗰𝗿𝗮𝗽𝗶𝗻𝗴 ✔ Selenium, Playwright, BeautifulSoup ✔ Headless browsers, CAPTCHA bypass ✔ Social media, legal & e-commerce data 𝗔𝗜, 𝗠𝗟 & 𝗗𝗮𝘁𝗮 𝗣𝗿𝗼𝗰𝗲𝘀𝘀𝗶𝗻𝗴 ✔ OpenAI, LLMs, LangChain, Transformers ✔ Image OCR + NLP for document parsing ✔ Scikit-learn, PyTorch, TensorFlow 𝗔𝗣𝗜 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 ✔ Solana, Reddit, Instagram (reverse engineered) ✔ WordPress, Google Cloud, Firebase ✔ Payment & eCommerce APIs 𝗖𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀 ✔ Docker, GitHub Actions, CI/CD ✔ AWS, GCP, Azure ✔ PostgreSQL, Redis, MongoDB 🧰 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜 𝗣𝗿𝗼𝘃𝗶𝗱𝗲 🐍 Python Engineering & Automation ✔ Custom automation scripts & bots ✔ Complex backend systems with Django / FastAPI / Flask ✔ Web & desktop app development using Tkinter, Electron.js ✔ Task scheduling with Celery & cron jobs ✔ Cross-platform Python tools with GUI 🧠 AI, Machine Learning & Data Science ✔ ML model development (classification, regression, clustering) ✔ Deep Learning (CNNs, LSTMs, RNNs) with PyTorch / TensorFlow / Keras ✔ NLP: Chatbots, summarizers, sentiment analysis, legal AI ✔ OpenAI / HuggingFace / LangChain / LLM pipelines ✔ AI for receipts, invoices, documents, OCR ✔ Generative AI: text-to-image, content creation ✔ AI Automation & multi-agent systems (LangChain, CrewAI) 🕷 Web Scraping & Reverse Engineering ✔ Scrapers for any website (eCommerce, Reddit, Instagram, TikTok, Facebook, legal sites) ✔ Bypass protections: Cloudflare, CAPTCHA, dynamic content ✔ Reverse engineering of web apps & APIs (media downloaders, geo-story extractors) ✔ Proxy rotation, user-agent spoofing, headless scraping ✔ Data parsing from PDF, HTML, JSON, XML, TXT 🌐 API Design, Integration & Custom Backends ✔ RESTful & GraphQL APIs ✔ Authentication systems (OAuth2, JWT) ✔ Real-time APIs with WebSocket ✔ Integration with third-party APIs: WordPress, Google Cloud, Solana, OpenAI ✔ Custom plugin development (e.g. WordPress auto-publishing) 💻 Full Stack Web Development ✔ Django + React / Vue / Next.js web applications ✔ Responsive frontend using Tailwind, Bootstrap, HTML5, JS ✔ Flutter for cross-platform mobile apps ✔ Admin dashboards, CRMs, internal tools ✔ Pagination, authentication, charts & real-time updates ☁️ DevOps & Deployment ✔ Dockerized environments ✔ CI/CD with GitHub Actions, GitLab, Jenkins ✔ Kubernetes for microservices ✔ Serverless functions (AWS Lambda, Firebase) ✔ App deployment to AWS, Heroku, GCP, Azure ✔ Nginx, Gunicorn, Apache server configuration 📊 Data Analytics & Visualization ✔ Data wrangling with Pandas & NumPy ✔ Visual reports using Matplotlib, Seaborn, Plotly ✔ Database design: PostgreSQL, MySQL, SQLite, Redis ✔ Google Sheets automation ✔ Structured data transformation & cleaning 🎯 Extra Services You Might Need ✔ Code refactoring, optimization & cleanup ✔ Debugging and performance tuning ✔ Technical documentation writing ✔ Project planning, architecture design ✔ Technical mentoring / code review ✔ Legacy code migration / modernization ✔ Freelance team collaboration ✅ Why Work with Me? ✔ 100% Job Success – Clients trust me to deliver on time with high-quality results. ✔ Automation & AI Focused – I specialize in reducing manual work and boosting efficiency. ✔ Problem-Solving Mindset – I love reverse engineering, debugging, and optimizing systems. ✔ Reliable & Responsive – You’ll get clear communication, fast iterations, and flexible solutions. ✔ Security & Best Practices – I prioritize performance, maintainability, and secure coding standards. 💻 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 ✔ Django, FastAPI, Flask, Node.js & Express backends ✔ React, Vue, Next.js with Tailwind & Bootstrap ✔ Full-featured apps: dashboards, CRMs, APIs, Auth, Realtime UI ✔ Cross-platform desktop apps using Electron.js + backend logic I am looking forward to hear back from you! 🎯