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Vladislav N.
$60/hr
100% Job Success
$100K+ earned
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Vladislav N. has worked .
Background: I am an expert in algorithms and software development, with two decades of experience in several domains, including R&D, Software Design & Architecture, Algorithm Analysis, Mathematical Modelling, and Academic Research & Education. This professional track is backed up by a doctoral degree in Mathematics and about dozen-year-long studies and research in Theoretical Computer Science. Services: I offer research, design, development, and analysis of software solutions, with special emphasis on algorithms, system architecture, and back-end. All provided solutions will be accompanied with ample documentation. Signature skills: Research, Analysis, Planning, Mathematical Modelling, Data Modelling, Solution Design, Business Logic, Solution Completeness, High Solution Accuracy (Low Bug Rate), Automation Signature domains: Algorithmic solutions, Back-End solutions, ERP and Information Systems, Data Services, Artificial Intelligence, Natural Language Processing Signature technologies: Python, Java, C#, SQL, Prolog, API, Dockers, OOP, Functional programming
$32/hr
100% Job Success
$5K+ earned
Available now
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I am a systems analyst, software developer, professor and researcher with many years of experience and a PhD in Computer Science. I have developed systems for diverse industries and researched/published mostly in the areas of artificial intelligence and games. I'm also a polyglot with a long experience with languages such as English, French and Spanish.
$50/hr
100% Job Success
$10K+ earned
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Gustavo B. has worked .
Software engineer with 20+ years of experience developing solutions mainly in Prolog, Java and C# languages. Minor working experience developing low-level code in C and C++. Strong computer science background, holding a BSc. and MSc. in Computer Science.
$50/hr
100% Job Success
$100K+ earned
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I deeply understand technologies, as I was there when they where invented to solve the problems that we where having. In fact I invented some of them myself. I just left my startup, (founder CEO/VP Innovation), and now am looking to return to development which is my true passion. Short list of Experience ● 2023 - 2024: SHM Founder VP Innovation ● 2019 SHM: Founder and CEO of startup offering remote programmers to US companies. ● 2014 Oncam Technical Consultant, Multi-Threading Specialist for a Video Conferencing Startup. ● 5 years participated as CTO or lead Programmer in several minor startups. ● Did a couple of years on Internet with upwork and other platforms (see history) ● At 40 had architected a State-Transition diagrams methodology for Stock-Exchange Processing. ● At 35 Leading an agile programming group for a Major Bank to integrate Electronic Stock Exchanges. Where I architected a publish and subscribe network system (5 years before TIBCO). ● Was CTO of Swiss Startup at 31. ● Built SMALLTALK and PROLOG PC based CASE tool to generate COBOL/CICS dialogs at 28yr ● Designed/Implemented a Meta Data Repository, to generate VAX/VMS code at 25 ● Wrote IBM/CICS emulation environment at 24yr ● Wrote an Database in 360 assembler at the age of 21yr Do you have an interesting problem you need solved? Talk to me see what I can offer you..
Steve D.
$55/hr
100% Job Success
$10K+ earned
Available now
Offers consultations
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I am an American citizen. English is my native language. Spanish is my second language. German is my third. I have also studied numerous other languages. In addition to software development as a contractor, I tutor students online in both computer science and the English language. I am also a technical writer, and I have authored a book on the C programming language.
$22/hr
93% Job Success
Available now
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Most businesses don’t need a team of freelancers. They need one person who can turn an idea into a real, working product. That's exactly what I do. I'm a **Full Stack Developer & UI/UX Designer** with **8+ years of experience** helping startups, founders, agencies, and growing businesses transform ideas into modern, scalable web applications. Whether you're building an MVP, improving an existing platform, or launching a completely new product, I can take your project from the first wireframe in Figma to a fully functional application in production. Unlike many developers who only focus on code, I also design. That means we can validate ideas visually before development begins, reducing revisions, avoiding expensive mistakes, and making sure we're building the right product from day one. Over the years I've completed **50+ successful projects on Upwork**, maintaining a **95% Job Success Score** by doing something surprisingly simple: communicating clearly, delivering consistently, and treating every project like a long-term partnership instead of a quick contract. ### What it's like working with me Most projects don't start with perfect documentation—they start with rough ideas, screenshots, voice notes, or a simple "I want something like this." My process is designed around that reality. • We discuss your goals, users, and business requirements. • I create or refine the UI/UX so we're aligned before development starts. • I build clean, maintainable, production-ready code. • I test thoroughly across devices and browsers. • I stay available after launch for improvements, maintenance, and future features. No disappearing for weeks. No unnecessary complexity. No surprises halfway through the project. Just clear communication, predictable progress, and software that's built to last. ### My Core Expertise **Frontend Development** • React.js • Next.js • JavaScript (ES6+) • TypeScript • HTML5 • CSS3 • Tailwind CSS • Bootstrap • Responsive Design **Backend Development** • Node.js • Express.js • PHP • Laravel **Databases** • MongoDB • PostgreSQL • MySQL • Firebase • Supabase **CMS & eCommerce** • WordPress • WooCommerce • Shopify • Webflow **UI/UX Design** • Figma • Wireframing • Prototyping • Design Systems • User Experience • User Interface Design • Pixel-Perfect Development ### Services I Provide ✔ Full Stack Web Application Development ✔ MERN Stack Development ✔ SaaS Application Development ✔ Dashboard & Admin Panel Development ✔ Startup MVP Development ✔ Custom Business Software ✔ REST API Development & Integration ✔ Third-Party API Integration ✔ Authentication & User Management ✔ Stripe & Payment Gateway Integration ✔ Database Design & Optimization ✔ Figma to React ✔ Figma to Next.js ✔ Figma to WordPress ✔ Figma to Webflow ✔ Custom WordPress Development ✔ Shopify Development & Customization ✔ Webflow Development ✔ Landing Pages ✔ Performance Optimization ✔ Bug Fixes & Feature Enhancements ### Industries I've Worked With I've had the opportunity to build products across a wide range of industries, including: • Healthcare • SaaS • eCommerce • Fashion • Beauty • Education • Food & Beverage • Sports • Real Estate • Finance • Travel • Logistics • Marketing • Professional Services Every industry has different challenges, but the goal is always the same: build software that solves real business problems. ### Why Clients Continue Working With Me Because I don't just write code. I ask questions before making assumptions. I think about the user experience, not just the functionality. I build software that's easy to maintain long after the project is complete. I communicate throughout the project instead of disappearing until the deadline. And if I don't think I'm the right person for your project, I'll tell you honestly rather than waste your time or budget. ### If We're a Good Fit You're probably looking for someone who can: • Turn an idea into a working product. • Improve an existing application without creating technical debt. • Build a scalable SaaS platform. • Develop a modern React or Next.js application. • Create a custom Node.js backend and REST APIs. • Design a clean UI before writing production code. • Build or customize WordPress, Shopify, or Webflow websites. • Deliver reliable work with clear communication. If that sounds like what you need, send me a message. Even if your project is still just an idea, I'm happy to discuss it, recommend the best technical approach, and let you know whether I'm the right fit. Let's build something great.
Umer K.
$20/hr
100% Job Success
$20K+ earned
Available now
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⭐𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 specializing in 𝐖𝐨𝐨𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞, 𝐄𝐥𝐞𝐦𝐞𝐧𝐭𝐨𝐫, 𝐰𝐞𝐛𝐬𝐢𝐭𝐞 𝐫𝐞𝐝𝐞𝐬𝐢𝐠𝐧𝐬, 𝐬𝐩𝐞𝐞𝐝 𝐨𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧, 𝐚𝐧𝐝 𝐜𝐮𝐬𝐭𝐨𝐦 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬. I also build high-converting Shopify, Webflow, and Wix websites for businesses worldwide. ✨ 𝐖𝐡𝐚𝐭 𝐈 𝐝𝐨 𝐛𝐞𝐬𝐭: 𝐖𝐨𝐫𝐝𝐏𝐫𝐞𝐬𝐬, 𝐖𝐨𝐨𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞, 𝐄𝐥𝐞𝐦𝐞𝐧𝐭𝐨𝐫, 𝐒𝐡𝐨𝐩𝐢𝐟𝐲, 𝐖𝐞𝐛𝐟𝐥𝐨𝐰 & 𝐖𝐢𝐱 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: Custom websites, theme development, and full CMS setup tailored to your business. 𝐞𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬 – High-performing Shopify & WooCommerce stores designed to increase sales and user engagement. 𝐑𝐞𝐬𝐩𝐨𝐧𝐬𝐢𝐯𝐞 & 𝐇𝐢𝐠𝐡-𝐒𝐩𝐞𝐞𝐝 𝐖𝐞𝐛𝐬𝐢𝐭𝐞𝐬 – Optimized for mobile, performance, and seamless user experience. 𝐒𝐄𝐎 & 𝐂𝐨𝐧𝐯𝐞𝐫𝐬𝐢𝐨𝐧 𝐎𝐩𝐭𝐢𝐦𝐢𝐳𝐚𝐭𝐢𝐨𝐧 – Built with best practices to improve visibility and maximize results. 𝐂𝐮𝐬𝐭𝐨𝐦 𝐅𝐮𝐧𝐜𝐭𝐢𝐨𝐧𝐚𝐥𝐢𝐭𝐲 – Clean, scalable development using HTML, CSS, and JavaScript. 💡 𝐖𝐡𝐲 𝐜𝐥𝐢𝐞𝐧𝐭𝐬 𝐜𝐡𝐨𝐨𝐬𝐞 𝐦𝐞: Focus on business results, not just design Clear communication and reliable delivery Scalable solutions that grow with your business 🚀 𝐋𝐞𝐭’𝐬 𝐛𝐮𝐢𝐥𝐝: 𝐋𝐞𝐭'𝐬 𝐝𝐢𝐬𝐜𝐮𝐬𝐬 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐣𝐞𝐜𝐭 𝐚𝐧𝐝 𝐛𝐮𝐢𝐥𝐝 𝐚 𝐰𝐞𝐛𝐬𝐢𝐭𝐞 𝐭𝐡𝐚𝐭 𝐝𝐞𝐥𝐢𝐯𝐞𝐫𝐬 𝐫𝐞𝐚𝐥 𝐫𝐞𝐬𝐮𝐥𝐭𝐬.
Syed K.
$30/hr
100% Job Success
Available now
Offers consultations
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WordPress Developer | CMS Expert | Shopify & WooCommerce Specialist | Web Designer | E-Commerce Developer | UI/UX Designer | Custom Theme Developer | Shopify Expert | Speed Optimization Expert | Webflow Developer | SEO Specialist | Wix Developer | Squarespace Developer | Elementor Pro Expert | DIVI Theme Expert | Hubspot Developer | Framer Expert | Squarespace Developer 🏆 Top-Rated Plus CMS Developer ✅ 100% Client Satisfaction 🔧 3+ Years of Experience in Website Design, CMS Development, & E-Commerce Solutions ⏱️ Quick Response Time & Proven Results Hi, I’m Syed Khursheed, an Expert CMS Developer specializing in WordPress, Shopify, and WooCommerce. With over 3 years of experience, I provide custom CMS solutions that help businesses create dynamic, user-friendly websites and increase online sales. Whether you’re a startup or an established enterprise, I deliver results that drive conversion and growth. 🔧 My Core Services: 🚀 CMS Development & Customization ⭐ WordPress Expertise: Custom themes, Elementor, Divi, Gutenberg, Oxygen Builder, ACF, WPBakery. Full plugin setup including Gravity Forms, WPForms, WPML, Yoast SEO, WP Rocket, and LiteSpeed Cache. ⭐Shopify: Store setup, theme customization, Liquid development, app integrations, and payment gateway configuration. ⭐ Webflow and Squarespace: Clean, responsive sites with easy-to-manage CMS setups that clients can update themselves. ⭐ WooCommerce Development: Full e-commerce sites, product integration, and payment gateways ⭐ HubSpot: CMS development using HubL and HubDB for websites that connect with your marketing and sales stack. ⭐ Full experience in Wix and Framer Websites. 🚀 E-Commerce Solutions ⭐ Shopify and WooCommerce store development to boost your online sales ⭐ Full integration of CMS platforms to provide seamless shopping experiences ⭐ Website optimization for speed, SEO, and user experience to increase conversion rates 🚀 UI/UX Design & Graphic Services ⭐ Responsive Web Design: Intuitive, mobile-friendly designs ⭐ UI/UX Prototyping: High-fidelity user interface designs with a focus on improving customer engagement ⭐ Design for Mobile Apps, Web Applications, Dashboards, and SaaS Platforms ⭐ Logo & Branding, Stationery Design, and Interactive Prototypes 🔍 Why Hire Me? ⭐ Proven expertise in CMS Development with WordPress, Shopify, WooCommerce, Webflow, Squarespace, Framer, and Hubspot with Top-rated Plus skills ⭐ Ability to transform ideas into fully functional websites and online stores ⭐ Focused on delivering ROI-driven solutions: from increasing traffic to boosting sales ⭐ 100% commitment to client satisfaction and timely delivery 🔗 𝐋𝐞𝐭'𝐬 𝐂𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐞: Ready to elevate your online presence? Whether it's crafting a WordPress website, tackling a custom development endeavor, or implementing an e-commerce solution, I'm here to assist. Let's delve into your vision, and together, we can craft a digital masterpiece. WordPress Development | Custom WordPress Websites | Website Design & Development | Web Development | Elementor Expert | Divi Theme Specialist | WordPress Themes & Plugins | WordPress Bug Fixes | WordPress Landing Pages | Gutenberg Editor | WordPress Multisite | WordPress Security | E-Commerce Development | WooCommerce Expert | Landing Page Development | CMS Solutions | WordPress SEO | WordPress Migration | UX/UI Design | Web Page Optimization | Website Builder Hubspot Developer | Framer Expert | Squarespace Developer
Maxim V.
$50/hr
100% Job Success
$200K+ earned
Available now
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🎮 Senior Game Developer | 10+ years in 2D/3D HTML5 games (Phaser, Three.js, Node.js) I develop browser games of any scale and style — from polished casual titles to real-time PvP and blockchain-based games. Do you need a good quality game? I can make it. 🧩 My specialties include: ✓ Browser games (HTML5 Canvas/WebGL — 2D & 3D) ✓ Telegram Mini App games ✓ Multiplayer PvP games with client-server architecture (Node.js + WebSocket) ✓ Game porting: Flash/Unity to HTML5 ✓ Performance optimization for web and mobile ✓ Game design: I can independently design gameplay systems and balance mechanics I can make games of various genres: action, physics puzzles, runners, skill-based games, match-3, educational games for kids. 🛠️ Core Skills: ✓ Platforms: Web (HTML5 2D/3D), Android, iOS, PC ✓ Game engines: Phaser (2D), Three.js (3D), Unity 3D ✓ Languages: TypeScript, JavaScript, C#, AS3 (Flash) ✓ Backend: Node.js (for PvP and multiplayer game logic) ✓ Tools & Tech: WebSocket, WebGL, Vue.js, Vite, Git, Spine, Adobe Animate Game development is my passion — let's build something great together! 📩 Let’s talk! I’m open to long-term partnerships and interesting game projects.
Sudhir S.
$20/hr
100% Job Success
$10K+ earned
Available now
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I am a senior developer with 21 Yrs. of experience ( 12+ Yrs with JPMorgan and rest with Deloitte, HCL and other) in Java/J2ee, Python, Rest API, SOAP API, javascript, OAuth, SSO, Kafka, SpringBoot, HTML, CSS, PHP, Web Design, Web Development, React, Redux, Angular, e-commerce, Wordpress, Shopify, JPA, Cloud, AWS, Azure, GCP, Private cloud, JBPM, n8n, Oracle BPM, JMS, Hibernate, Struts, Spring Batch, ESB, Base44, Playwright, Selenium, JavaFX, Lisp, Prolog, Weka , OpenAI, Different Web as well as Application Servers, different Operating Systems and DBMS Tools, SQL, NoSQL, PostgreSQL, Mongo, Cassandra, MYSQL, Oracle, Supabase, AI, NLP, OpenAI, agent development, Wordpress, php , CI/CD, Agile and various open-source tools, technologies and frameworks. Some of the domains I have worked on are Banking, finance, Trade, Crypto, HR, Insurance, Learning, NLP, Healthcare, System architecture, Developers Tooling, Document management, AI, DevOps, Cloud, GCP, Hubspot, Quickbook, PandaDoc, Stripe, web3, Blockchain, etc. ********************************************************************* Experience Summary: Freelancing || Freelancing || Present Toyow || Solution Architect || Sep 24 to JAN 25 JPMorgan || Vice President || (Around 12 Yrs. Total) Deloitte || Senior Consultant/Specialist Senior || Jun 13 to Jun 15 HCL || Onsite/Offshore Dev lead || Sep 06 to May 10 Birla Soft Ltd || Software Engineer || Jan 06 to Sept 06 GIIT || Developer || Feb 05 to Oct 05 ************************************************************************* Some of the applications are as below: - Document generation system - Online translation system using NLP - Library management system - HRMS System - Networking system - Tools for Developer and Operate to build and deploy their applications. - Workflow as a service - Workflow Platform for Mutual Fund NAV processing (Fund accounting) - Prediction analysis for SLA miss. - A real time dashboard for fund processing - Messaging Platform supporting MQ, SFTP, REST, Kafka, FIX, - Trade instruction manager - Customer support system for Bank operators - Platform for Tokenization Assets using Blockchain - A social Media application - A insurance management Platform - Applications developed on Base44 - Loan record reports - OCR for healthcare reports and data processing. - ChatBot for Patient enquiry. - Coin analysis using AI (openAPI integration). - A Platform for affiliate marketing. - CI/CD for Gitlab and AWS.