Software Engineer | Web & App Developer | Trading Bots & Business Apps I help businesses turn ideas into powerful, intuitive, and scalable software solutions. Skilled in Python, JavaScript (Node.js, React), Java, C++, SQL, and Solidity, I build web & mobile apps, custom automation scripts, trading bots, and financial applications that deliver real results. Whether you are reimagining a new tech, solution, or want to stand out in your current business, I am here to help you every step of the way to realize that vision with: Clean, scalable code | Client-focused solutions | Transparent communication Your vision + my skills = excellent results.

Knowledgeable Software / Mobile Developer skilled in data collection, analysis and management. Works well under pressure and consistently meets deadlines and targets while delivering high quality work.

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.

I'm an Entrepreneur, Product Leader, AI-driven Developer, Architect, and Team Leader with deep technical expertise. MBA from Illinois at Urbana-Champaign and BS degree in Computer Science from Syracuse University. Certified Google PM, Fintech from Wharton, AI Product Management from Duke, and over 60 specializations from Gies Business School that span digital marketing, business strategy, finance and entrepreneurship.Worked for firms with 4X Exits from 10M up to 200M. I've delivered outstanding work for Dreamworks Animation, Fox Sports, IBM, Amazon (Zappos), Deloitte Digital, Oxford (Lilly Pulitzer), FLIR Systems (global leader in infrared where I delivered solutions for the US Air Force, Navy, White Sands Missile Range and NASA with SECRET level clearance), Philips, HorsesForHeroes (non-profit for military families), Syracuse University, PK Fitness (run by former Dreamworks Anim CTO and Olympic Decathlon Champion Bryan Clay), and many VC-backed startups.

I’m a developer available for contract work while completing my Master’s in Research in Quantum Computing. My work bridges the gap between cutting-edge research and practical applications, from building scalable quantum-hybrid pipelines to integrating AI into modern software systems. I also have hands-on experience building and modernizing websites for small and medium-sized businesses, as well as developing mobile applications for iOS and Android. Whether you need to develop a next-generation AI solution, explore quantum computing workflows, or bring your software vision to life, I can help. * Experienced with Python, C#, C, Rust, Java, Swift, SQL, and mobile app development (iOS/Android) * Skilled in software security, database architecture, and quantum-hybrid pipelines. * Full-cycle development — from design to deployment and maintenance. * Regular communication is important to me, so let's keep in touch.

PROFESSIONAL SUMMARY Independent developer and digital marketing specialist with 5+ years of freelance experience building the complete digital infrastructure behind a business. I ship custom SaaS platforms, CRM systems and marketing sites, then connect them to SEO foundations, paid campaigns and unified analytics so clients can see which channel actually produces revenue. Most of my engagements are long-term: clients come for one deliverable and stay for ongoing development and campaign management. I work directly with founders and owners, in English, Hebrew and Russian. QUALIFICATIONS Professional background: Self-directed developer and marketer; 5+ years delivering production systems for paying clients rather than academic coursework. Portfolio and client references available on request. Specialisation: The intersection most freelancers don't cover - I build the product and run the acquisition channels that

⭐️⭐️⭐️⭐️⭐️5.0 "A lot of people call themselves experts on Upwork, in this case, it is true. Can only give Touba my highest recommendations. We were on a tight deadline and Touba was very helpful in helping us reach that deadline." Product Designer | 0→1 Products, AI & Design Systems I’m a Software product Designer/ UI UX Designer with 10+ years of experience designing and scaling digital products across mobile, SaaS, B2B and consumer experiences. I work across the full product lifecycle — from understanding the problem and defining strategy to research, UX, interaction design, prototyping, visual design, shipping and measuring impact. I’m highly experienced in **0→1 products, complex workflows, AI-native experiences and products where design can directly influence business outcomes.** I enjoy turning ambiguous problems into simple, intuitive experiences and working closely with Product, Engineering, Data and leadership to take ideas from concept to production. 🚀 Some Success story Bliq — Mobility / Consumer Mobile * Founding Product Designer for the passenger app and sole designer for the driver app. * Helped scale Bliq from an early-stage product to **1.1M+ users across Germany and Poland**. * Redesigned onboarding, increasing **install-to-account conversion by ~400%**, retention by **52%**, and search-to-trip conversion by **88%**. * Designed growth and retention features including Wallet Top-Up, tipping and Bliq PRO. * Wallet Top-Up contributed to **121% more searches and 113% more orders** among adopters. * Helped launch Bliq Rides, which grew to **8 cities**, contributing to **4.7× ride growth within four months**. * Built and evolved the product’s design system with tokens, variables, primitives, themes and localization. Anouschka — Immersive / VR Gaming app * Led UX/product design for an immersive VR experience despite having no previous VR product experience. * Worked through the constraints of spatial interaction and immersive storytelling to create an intuitive experience. * The project premiered internationally at **SXSW 2025** and was shortlisted for the **Dutch Directors Guild Award for Digital Storytelling**. 💻 Industries I've worked across • Mobility & Travel • SaaS & B2B • AI • HealthTech & Telehealth • FinTech • Food & Grocery • Delivery • Admin & Enterprise Platforms • Consumer Mobile • VR/AR & Immersive Experiences** I’ve worked on everything from consumer mobile apps and subscription products to complex dashboards, healthcare/EMR platforms, internal tools and immersive experiences. ❤️ What I bring - Product Design: UX strategy, interaction design, information architecture, user flows and visual design -0→1 & Product Development: Taking products from early concepts to shipped experiences - AI-native Design: Exploring new AI interaction models and rapidly validating product concepts with AI tools - Design Systems: Scalable systems, tokens, primitives, components, theming and localization - Research & Validation: User interviews, usability testing, analytics and experimentation - Data-informed Design: Amplitude, behavioral analysis, conversion and retention optimization - Mobile: iOS & Android product experiences - Prototyping: Figma, Framer and AI-assisted prototyping - Cross-functional Leadership: Close collaboration with founders, PMs, engineers, data teams and stakeholders I care about more than making screens look good. I want to understand the problem, build the right thing, ship it, and see whether it actually made a difference. If you're looking for a senior product designer to take ownership, simplify complexity and turn ideas into products, let’s talk.

Are you in need of a Shopify expert who can deliver outstanding results? Search no more! I'm Johnathan, a Shopify Partner with over 6 years of experience. I've honed my skills on the Shopify platform, collaborating on various projects for startups, well-established businesses, and even agencies. Why Choose Me? ✅ Extensive Expertise: With a deep understanding of Shopify, I've successfully wrapped up over 250 Shopify store projects, including: -Custom builds -Custom App Integrations -ERP / 3PL rules -Unique automation -Unique Product page customizations 🚀 Proven Success: In the last 6 years, I've been involved in numerous Shopify migrations, which has given me experience on a deeper level of how to build and optimize Shopify online stores. My customers have scaled from 50k / mo to over 450k / month. 💡 Innovative Solutions: I'm not only skilled in technical aspects but also well-versed in consumer psychology. This enables me to create unique product page customizations, conversion optimization strategies, and marketing campaigns that turn visitors into loyal customers. I pride myself in: - Great Communication - Adhering to deadlines - Underpromising and overdelivering If you find yourself facing challenges and are uncertain about whether your vision can be realized on Shopify, don't hesitate to get in touch. I'd be happy to explore how I can assist you. -John ___________________________________________________________________________________________ This part is mainly for Upwork search engine so you can skip over Shopify App Development Shopify API Liquid Code Ruby on Rails Headless Commerce Recharge Subscription Loop Returns Wordpress API Advance custom fields Gravity Forms Subscriptions Quickbooks enterprise integration Xero Integration 3PL integration Cart Rover Stripe Integration Vue.js React.js Laravel

I’m a New York City based software engineer and consultant. As an engineer, I’ve worked on the launch of a household name streaming service, put satellite internet on ships and airplanes, build video streaming educational platforms, developed web frontends for medical devices, and worked on iOS native video streaming applications. I’m also a Certified Scrum Developer, CSPO, CSM, LeSS-certified practitioner. I have successful experiences as a team manager, scrum master, and coach.

I am a highly experienced full stack and devops engineer that can bring valuable expertise to a variety of projects; Whether you are a small business looking to launch an ecommerce website, a nonprofit looking to modernize your digital infrastructure or an entrepreneur looking to stand up a computational prototype, I'm your guy! I've founded a profitable business and have a range of expertise not only in hard technical areas, but also adjacent domains like digital marketing/SEO, customer discovery and UX design. If you're looking for someone pragmatic, who possesses broad experience, excellent interpersonal skills and who can delivery quickly and reliably, then you should shoot me a message!