⭐⭐⭐⭐⭐ - "You're like a freaking unicorn to us!" 🦄 My portfolio ➡️ markvainauskas.com I have worked with HUNDREDS of small businesses to get their website designed and running to their satisfaction. I have helped clients build React Native Apps, React Dashboards, Logos, Banners, designs for T-Shirts, hats and many others. ℹ️Portfolio Advanced Functionality: It communicates with Netlify API, And automatically adds the latest project as a card, this runs as a Cron job python every 10mins to get the latest of my projects uploaded to Netlify I consider myself an expert in most CMS's, here are a few most known ones I know, but not limited to: ✅ Wordpress ✅ Wix ✅ WebFlow ✅ Weebly/Squarespace ✅ KVCORE I have expert knowledge in many programming languages, I take pride in writing CLEAN and REUSABLE code: 💥 JS, JSX, TS, TSX, (JavaScript and Typescript) 💥 Python 💥 PHP 💥 HTML & CSS 🏆 WHY CHOOSE ME OVER OTHER FREELANCERS? 🏆 ✅ Responsiveness : I am extremely responsive in keeping lines of communication open ✅ Resilience : I don't stop until the issue at hand has been resolved. That is my drive. ✅ Kindness : One of the biggest aspects that I implement in every facet of my life. Treating everyone with respect, understanding all situations, and genuinely wanting to IMPROVE my Client's situations. ✅ Over-Delivering : This is core to my work as a Freelancer. My focus is on GIVING more than what I expect to RECEIVE. I take pride in leaving all of my Clients saying "WOW". Being a Lead Designer for a marketing company. I mainly designed client websites, make logos, infer with clients about marketing strategies, etc. I have been promoted to being a Frontend Developer, I push to make an extra effort, because that in turn helps me become a better designer and developer. One of the biggest concern that clients have with freelancers, is the fact that most freelancers won't put in the effort or even communicate with the client that's paying them. The work never seems to comes out the way they need it. I want to gain a good reputation so expect the best from me. In the words of my own boss, "You're like freaking unicorn to us!" 🦄. Which I hope you may say the same too. I don't want to leave you high and dry after everything is done. If there are any concerns rest assured, I will be at your disposal if need be and hope you comeback for my expertise. Let's make something beautiful and fast!!!

With over 15 years of diverse industry experience, I bring a strong track record in building and optimizing data-intensive systems. For the past decade, I’ve specialized in Big Data technologies, including Hadoop and Spark, where I’ve designed and implemented scalable data pipelines capable of processing petabyte-scale datasets. My work has consistently focused on performance tuning and cost optimization—achieving infrastructure cost reductions of up to 80% through advanced Spark job tuning and architectural improvements. Earlier in my career, I gained hands-on experience in developing Python-based scrapers, automation scripts, and RESTful APIs, and I also built native iOS applications using Objective-C. This breadth of experience has given me a solid foundation across the full technology stack. I’ve led the development of data lakes for leading e-commerce and fintech companies, enabling robust data infrastructure for analytics and machine learning. Having worked at multiple startups, I thrive in dynamic environments and adapt quickly to various methodologies, including Agile and Kanban.

EXECUTIVE PROFILE Founder and Managing Director of Flurzi Limited , a UK-registered technology and software development company responsible for the conception, development, management and delivery of a growing portfolio of proprietary digital products. Flurzi Limited operates through a multidisciplinary technology team spanning senior software development, software engineering, UI/UX, software testing, product management and cybersecurity , enabling the company to take products from initial commercial concept through architecture, development, testing, deployment and ongoing improvement. Rather than operating as an individual freelance developer, Kamsiriochi leads the commercial, strategic and operational direction of Flurzi Limited as a technology delivery organisation , coordinating specialist team members, allocating development priorities, defining product requirements, overseeing quality and managing simultaneous digital projects.

Hello! I'm Tristan Curtis, a Top Rated IT Professional / Sr. Software Engineer with a passion for helping people with their technical needs. Backed with a degree in Information and Network Technology, accompanied by multiple certifications, and strengthened by extensive hands-on experience, I am well-equipped to tackle virtually any challenge you throw my way! Understanding the need for prompt assistance, I strive to be available within a moments notice, day or night. I offer a wide array of services including, but not limited to Web Application Development ▪️ Backend: PHP, Laravel ▪️ Frontend: Vue.js, JavaScript, jQuery, HTML, CSS, Sass, Bootstrap ▪️ Databases: MySQL, SQL Server, MariaDB, PostgreSQL ▪️ Specializes in: architecting complex web applications from scratch based on a provided design Web Administration ▪️ Domain and DNS support ▪️ Troubleshooting issues with Nginx, Apache and WHM/cPanel ▪️ Fine-tuning PHP FPM for optimal scalability ▪️ Installing SSL certificates and addressing renewal issues with LetsEncrypt / Certbot ▪️ Migrating websites from one hosting company to another Network Administration ▪️ Proficient in managing networks powered by the following vendors: UniFi, pfSense, MikroTik, Cisco ▪️ Expertise in deploying and troubleshooting wireless connectivity ▪️ Strong knowledge of VPN connectivity for remote access and site-to-site connections ▪️ Experience developing custom splash pages / captive portals to authorize wireless connections Desktop Administration ▪️ Experience with the following operating systems: Windows, Mac OS, Ubuntu and various other Linux distros ▪️ Virtual desktop administration utilizing VMware Horizon Database Administration ▪️ Experience with: MySQL, MS SQL Server, MariaDB and PostgreSQL ▪️ Familiarity with: Google Cloud SQL and AWS RDS Virtual Infrastructure Administration ▪️ Proficient in VMware ESXI/VMware vCenter and Hyper-V Email Administration ▪️ Setting up SPF, DKIM and DMARC for enhanced email security ▪️ Troubleshooting email deliverability issues ▪️ Seamless migration of email from one platform to another ▪️ Well versed in Google Workspace and Office 365

I am Rogie Choco a passionate Web and Game Developer with experience in designing, developing, and maintaining interactive web applications and digital games. I specialize in front-end and back-end web development using HTML, CSS, JavaScript, PHP, and SQL, with experience building responsive, user-friendly, and database-driven applications. I also enjoy creating engaging game mechanics and interactive experiences while continuously exploring new technologies to improve performance and user experience. As a technology enthusiast, I am committed to continuous learning and staying current with emerging trends in software development, game development, artificial intelligence, and web technologies. I enjoy solving complex problems, collaborating on innovative projects, and developing solutions that are both functional and visually appealing. My goal is to create high-quality digital products that provide value to users while continually expanding my technical expertise.

I am a passionate and performance-driven Unity Game Developer and 3D Web Specialist with extensive experience conceptualizing, architecting, and deploying immersive 2D, 3D, XR, mobile, and web-based experiences. I specialize in translating complex Game Design Documents (GDDs) and 3D concepts into fluid, high-frame-rate gameplay and interactive web applications specifically tailored for iOS, Android, and modern browsers. Whether you need a highly optimized mobile game, a complex multiplayer system, an immersive VR experience, or an interactive WebGL web application, I write clean, modular C# and JavaScript code and optimize asset pipelines to ensure your project runs beautifully and keeps users engaged. 🎮 What I Bring to Your Project • Mobile Game Development: Expertise in building and optimizing games specifically for mobile. I specialize in intuitive touch controls, mobile UI/UX, memory/battery optimization, and integrating monetization SDKs (Unity IAP, AdMob, AppLovin). • Full-Cycle Development: From initial prototyping and architecture to final deployment, App Store/Play Store guidelines compliance, and launch. • Immersive XR/VR: Deep understanding of spatial design, VR physics interactions, and optimizing for strict VR frame-rate requirements. • Multiplayer & Networking: Experience building synchronized, lag-compensated multiplayer experiences for mobile and PC. • Performance Optimization: Expert in profiling, reducing draw calls, managing memory, and maximizing FPS even on low-end mobile devices. • 3D Art & Level Design: Proficient in Blender for 3D modeling, texturing, and creating engaging, player-centric level layouts. • WebGL & Web 3D Integration: Expertise in bringing high-performance 3D experiences directly to the browser using Three.js and Babylon.js. I specialize in writing custom GLSL shaders, optimizing WebGL rendering pipelines, and seamlessly integrating interactive 3D assets into modern web platforms. 🛠️ Core Tech Stack Unity Engine (2D/3D) | C# Scripting | WebGL | Three.js | Babylon.js | GLSL & Custom Shaders | JavaScript / TypeScript | Mobile Game Development (iOS/Android) | Blender (3D Modeling) | AR/VR (Oculus/SteamVR/ARCore) | Multiplayer/Networking | Mobile Optimization & Monetization (IAP/Ads) | Physics Simulation | Git/Version Control

Full-Stack Flutter & AI Mobile Engineer I help founders, startups, and product teams build production-grade mobile applications and AI MVPs from scratch. Specializing in Flutter, real-time audio machine learning, and scalable cloud backends, I turn complex technical ideas into clean, fast, and user-friendly mobile products. Recent Projects & What I Build: AI Audio & Stem Separator (Demucs Engine): Full-stack mobile pipeline separating vocal and instrumental stems in real time using a GPU-accelerated FastAPI backend deployed on Google Cloud Platform. Vāgdhenu (Sanskrit Audio & Pronunciation AI): Niche audio-to-text and pronunciation evaluation tool integrating Google AI Studio and specialized language models for Sanskrit mantra recitation and phonetic accuracy. Singing-to-Notes / Sargam Transcriber: Real-time on-device audio processing tool that detects vocal pitch offline and converts singing directly into Western sheet notes and Indian Sargam notation. Conversational Character Voice AI: Interactive voice companions featuring low-latency speech synthesis, conversational memory, and distinct personality prompting (Gemini/OpenAI + custom voice models). Media & Automation Utilities: Native background processing, media extractors, audio converters, and permission-compliant Android/iOS workflows. Core Technical Stack: Mobile Frontend: Flutter, Dart, Android Studio, Native Permissions, Reactive State Management Audio & Machine Learning: Demucs, Pitch Detection/DSP, Speech-to-Text (STT), Custom Text-to-Speech (TTS), Google AI Studio, Gemini API Backend & Cloud: Python (FastAPI), Google Cloud Platform (Compute Engine VMs, CUDA/GPU Compute), REST APIs Database & Services: Firebase (Auth, Firestore, Cloud Storage, Push Notifications) How I Work With Clients: Clear Architecture First: We nail down the app flow, backend architecture, and third-party API costs before writing code. Fast MVP Milestones: You get regular APK/TestFlight builds to test features on real devices as they are built. Clean, Documented Code: Well-structured Flutter codebases and API docs that your team can maintain and scale effortlessly.

I am a Data Scientist with over 8 years of experience in software development and data analysis. I specialize in transforming complex data into actionable insights that drive decision-making and enhance operational efficiency. My background in programming, scripting, and application support empowers me to tackle technical challenges with clarity and precision. I excel in identifying root causes, implementing practical solutions, and ensuring reliable workflows. My growing expertise in data science allows me to leverage analytical programming to support various initiatives, from monitoring systems to optimizing processes. I am committed to staying ahead of industry trends through continuous learning and hands-on projects. If you are looking for a detail-oriented professional who can unravel data challenges and deliver impactful solutions, let's connect and discuss how I can contribute to your success.

Shopify developer and founder of One More Agency — 11 years building websites for brands around the world, focused on custom Shopify builds and ongoing development partnerships for the past 6 years. What I do best: full Shopify site builds from Figma (or from sketches), custom theme work on Dawn, Horizon, and OS 2.0 foundations, and the kind of tailored functionality off-the-shelf apps can't handle — custom subscription flows, rewards systems, multi-region storefronts, and WordPress to Shopify migrations. Recent work includes luxury skincare (Auteur), fashion (Anielka), lifestyle and movement (Sol Seok), kids' devices (Tin Can), apparel (Faherty, Pole Junkie), and subscription services (Billy Bubbles). I run a small team, which means I can take on larger projects without the quality dropping — when you hire me, you get a developer with a studio behind him when the brief grows. Comfortable working with clients who have a clear brief, and equally comfortable with the ones who have a rough idea and need someone to help shape it. Responsive, honest about tradeoffs, and happy to tell you when something won't work and find a better way.

I have a 15+ years reverse engineering experience. My experience includes: - reversing of Windows/Linux/OS X/Android/iOS applications - almost every debugger/decompiler: IDA/Hopper/lldb/etc. - reversing data formats and network protocols - modifying, patching and adding features to compiled code - creating emulators - etc. I can create software but I'm only interested in Reverse Engineering jobs here on Upwork.