Hi! I am Manuel, an Information Systems Graduate, Web developer and passionate E-Commerce-Manager. I offer you a wide range of professional services related to E-Commerce, like building and taking care of websites or online-shops, developing and implementing online marketing campaigns and integrate any other digital sales channel into your business. Since I've started in 2016, I have built 15+ successful running websites and profitable online shops. Most of them I still maintain for my clients today. I want to share my knowledge with you, and I am happy when I can help! Just ask me!

Are you looking to elevate your brand and drive real results? With over a decade of experience working with high-profile clients like Nike, Target, the Cleveland Browns, and Jake Paul, I bring a wealth of expertise to the table in creative strategy, branding, and digital design. I specialize in crafting go-to-market strategies, building visually stunning websites, mobile app design and development, and developing eye-catching marketing materials. Whether you need a full brand overhaul, a seamless website design, or high-converting landing pages, my work ensures that every project is delivered on time, within budget, and designed to drive impact. With a strong background in graphic design, digital marketing, and project management, I’m committed to helping you create a powerful, memorable brand presence. I’m well-versed in: Web Design & Development (WordPress, Elementor, UI/UX) Mobile App Design & Development (iOS/Android) Digital Marketing Strategy (SEO, paid media, social media campaigns) E-commerce Optimization Brand Identity & Creative Direction Pitch Decks & Sales Materials Resume & LinkedIn Optimization Marketing Copy & Content Writing Social Media Strategy & Campaign Management Project Management & Team Leadership Video Production & Editing Beyond my work in design and marketing, I’m also passionate about helping individuals shape their careers. As a certified career coach with over 200 clients helped, I specialize in resume building, LinkedIn optimization, and job search strategies, guiding others toward their dream roles. With an 88% hire rate and 5-star reviews across 60+ Upwork jobs, I bring proven results to career coaching, ensuring every client feels confident in their professional journey. Let’s work together to transform your ideas into success. Whether you’re looking to boost online sales, improve user experience, enhance your digital presence, or land your dream job, I have the expertise to help you achieve your goals.

I build mobile and embedded apps from first idea to launch — and I do it with the judgment of someone who's spent over a decade shipping products to more than a million users. Most recently I was a Director of Engineering at a fitness-technology company, where I owned mobile platforms end-to-end across iOS, Android, and embedded devices. That work paid off in the numbers clients actually care about: customer satisfaction up from under 70% to 85%+, app store ratings up from 2.5 to 4+ stars, load times 100–200% faster, and crash-free rates held above 99%. I shipped the features users kept asking for — video and music integration, watch apps, AI-personalized coaching, smarter in-app search — and integrated partner technology from Samsung, Apple, eGYM, and Orange Theory. I grew into that role from the ground up, starting as a hands-on mobile developer. That matters because it means I'm not just a manager who delegates — I write the code and make the architecture and roadmap calls that keep an app fast, stable, and easy to extend as it grows. Now I bring that same senior-level judgment straight to your project. Through my own studio, J Davis Development, I handle strategy, architecture, design direction, and code under one roof — no handoffs, no telephone game between five different vendors. Using AI-accelerated workflows, I deliver team-scale results as a solo developer, moving at a pace that normally takes a small team. What I can do for you: - Build a new iOS or Android app from concept to App Store / Play Store launch - Rescue or modernize an existing app that's slow, crashing, or hard to maintain - Improve performance, stability, and crash-free rates on a live product - Architect a scalable foundation so your app won't need a rewrite in a year - Integrate third-party services, hardware, wearables, and partner APIs - Define product strategy and a realistic feature roadmap before a line of code is written - Add AI-driven features — personalization, smart search, automated content, image generation, and much more Core skills & tools: - Mobile: Kotlin, Swift, Java, React Native, Jetpack Compose, KMP - Cross-platform & embedded: iOS, Android, embedded device platforms, wearables/watch apps - Backend & cloud: Firebase, AWS, Google Cloud, SQL, BigQuery - AI integration: Claude, OpenAI, AI-accelerated development workflows - Architecture: scalable app architecture, performance optimization, CI/CD, test automation - Analytics: Amplitude, Mixpanel, GA4 — building features around real user behavior - Product & process: roadmapping, feasibility assessment, Agile delivery (JIRA, Confluence) How I Work: Hiring a developer shouldn't feel like a gamble. My process is built so you know exactly what you're getting, what it costs, and where things stand at every step. 1. Free discovery call. We talk through your idea, your users, and your goals. No charge, no obligation and I'll give you an honest read on whether it's a fit before either of us commits. 2. A detailed plan you can actually read. Before any code is written, I deliver a Product Requirements Document (PRD): a clear, plain-English breakdown of every feature, what it does, and the estimated hours and cost for each. You see the whole project itemized, so you can prioritize, trim, or phase the build to match your budget. No surprises, no vague "it depends." 3. Milestone-based delivery. We break the work into defined milestones with clear deliverables. You see working progress regularly and you're never paying ahead of what's been built. 4. Consistent, jargon-free communication. I keep you updated on a predictable cadence and explain technical trade-offs in language that helps you make decisions, not ones that make you feel out of the loop. 5. Launch and beyond. I handle App Store / Play Store submission and hand off clean, documented, maintainable code. The result: you always know the plan, the price, and the progress. That clarity is the whole point.

I am an accomplished full-stack developer with a passion for learning and finding ingenious solutions to complex problems. I am particularly interested in App and Web Development, Data Mining, Statistical Analysis and Discrete Mathematics. Over 15 years of successful experience providing technical, creative, strategic and operational leadership in uniquely challenging, dynamic and competitive environments. Results-oriented leader with a strong track record of exceptional performance in fast-paced organizations and highly competitive categories. Superior interpersonal, communication and negotiation skills coupled with an ability to manage multiple and complex issues while motivating staff to peak performance. Specialties: Brainstorming, General Management, Technical strategy/direction, User Experience Design, Social Media consulting/direction, Art Direction, Creative Direction, Interactive Direction

I am a Backend Developer with five years of experience in crafting scalable microservices. I specialize in PostgreSQL, Kafka, Debezium, and GraphQL Federation, focusing on event-driven architectures to enhance system performance. My expertise extends to leveraging gRPC and Docker in live production environments, ensuring robust and efficient application deployment. I have a strong foundation in building systems that not only meet client specifications but also streamline operations and drive growth. If you’re looking for a developer who can translate complex requirements into innovative solutions and provide reliable support throughout the project lifecycle, let's discuss how I can contribute to your success.

With over 15 years in web development, I bring a wealth of experience and a passion for creating robust, efficient, and user-friendly web solutions. My expertise spans the entire web development stack, with a focus on PHP and JavaScript technologies. Why Choose Me? I'm not just a coder; I'm a problem solver and a strategic thinker. With my extensive experience across various industries and technologies, I can quickly understand your business needs and deliver solutions that not only meet but exceed your expectations. My commitment to clear communication and timely delivery ensures a smooth and productive collaboration throughout your project. Ready to bring your web development project to life? Let's connect and discuss how I can help turn your vision into reality. What Sets Me Apart =========================== Versatility: Proficient in multiple languages and frameworks, allowing for tailored solutions to meet specific project needs. Problem-Solving: Skilled at developing custom solutions for complex business requirements. User-Centric Approach: Focus on creating intuitive and engaging user experiences. Strong Communication: Excellent at collaborating with clients and team members to ensure project success. Continuous Learning: Always staying updated with the latest web technologies and best practices. Core Skills =========================== Languages: PHP, JavaScript, Node.js, Python, Ruby Frameworks: Laravel, Symfony, Vue.js, React, Angular Full-Stack Development: Front-end, back-end, and database development E-commerce Solutions: WooCommerce, custom implementations CMS: WordPress, custom CMS development Mobile App Development: Ionic framework, Android, iOS API Development: RESTful APIs, Laravel Database: MySQL, PostgreSQL DevOps: Docker, CI/CD, Git Cloud Platforms: AWS, DigitalOcean, Vercel Featured Projects =========================== Ollie's Bargain Outlet Mobile App - Led the development of Android and iOS apps for a major retail chain with 500+ stores. - Built using Angular and Ionic framework, focusing on loyalty program management and location-based services. - Managed a team of developers and designers, ensuring high-quality implementation and stakeholder satisfaction. Yuengling Brewery Website and B2B Portal - Spearheaded multiple redesigns of America's oldest brewery's consumer-facing website and internal B2B portal. - Transitioned from a custom e-commerce solution to a WordPress-based system while maintaining custom functionalities. - Developed a complex wholesaler business management system with data input, calculations, and reporting features. FunBookShelf - Book Publishing and Reading Platform - Engineered a full-stack solution using Laravel REST API, Filament admin area, and Next.js/React frontend. - Implemented Stripe-based subscription service and innovative SVG-based copy protection for book content. - Deployed using Docker and GitHub CI/CD on DigitalOcean, with frontend hosting on Vercel.

Hi, I’m Shaodong, a Unity developer with 6+ years of experience building gameplay systems, combat frameworks, multiplayer features, mobile games, PC games, VR applications, and interactive 3D projects. I can help you develop, optimize, debug, or improve Unity projects—from early prototypes to production-ready gameplay systems. My main areas of expertise include: • Unity and C# gameplay development • Combat frameworks and character systems • Skills, Buffs, attributes, state machines, and damage systems • Monster AI and player abilities • Multiplayer combat and server-authoritative architectures • UI systems, animation, VFX, object pooling, and resource management • Mobile and PC performance optimization • Unity Editor tools and development workflow improvements • VR and interactive multimedia applications In a 3D online fighting game, I led the development of the core combat framework from scratch, including skills, Buffs, character states, combat flow, VFX, and client-side combat presentation. I also created a debugging tool that reduced battle testing and issue reproduction time by approximately 80%. For a mobile top-down shooter, I implemented around 40 monster AI types and more than 80 player skills. I optimized combat scenes with over 200 enemies, improving performance from approximately 10–15 FPS to 50–55 FPS on Android devices while reducing memory usage by around 400 MB. I am comfortable working with existing codebases, identifying technical problems, improving architecture, fixing bugs, and delivering new gameplay features. I also write clear technical documentation and communicate progress regularly throughout development. Whether you need a gameplay prototype, a combat system, multiplayer features, performance optimization, bug fixing, or Unity development support, I will focus on providing a reliable and maintainable solution.

I am an iOS Developer with 19 years of experience in building complex applications and solutions. My expertise lies in architecture, cross-platform development, and project management. I specialize in creating scalable and robust iOS applications that enhance user experience. I have a proven ability to lead teams and mentor other developers, ensuring high-quality outcomes. My analytical skills enable me to design effective proofs of concept and deliver projects that meet diverse client needs. Whether you need a technical lead for your next app or a developer to bring your vision to life, I leverage my extensive knowledge and strategic thinking to drive innovation. Let's connect to discuss how I can contribute to your project's success.

Hi there! 👋 I'm a passionate and results-driven Software Development Engineer with 6+ years of hands-on experience building scalable, secure, and high-performance applications. I specialize in designing and developing end-to-end solutions that meet business goals and deliver real value. Technical Skills: Frontend: React.js, Angular, HTML5, CSS3, JavaScript, Bootstrap, Tailwind Backend: Node.js, Express.js, Java, Spring Boot, Spring, Hibernate, JPA, Micro Services Databases: MySQL, PostgreSQL, MongoDB, Firebase DevOps & Tools: Git, Docker, Jenkins, AWS, Azure, REST APIs, Postman, Swagger Project Management Tools: JIRA, Trello, Asana Other: Agile/Scrum, CI/CD, Microservices Architecture, JWT Authentication Full-cycle Web Application Development API design & integration (RESTful services) Frontend UI/UX implementation from Figma or design files Database design and performance optimization Migrate or upgrade your existing app to a modern tech stack Bug fixing, code reviews, and ongoing maintenance Deployment on cloud platforms like AWS / Azure / Heroku

I am a web developer specializing in(it's a long list): WordPress, Shopify, PHP, HTML, JS, CSS, SASS, NGINX, MySql, React, TypeScript, Sanity, Vercel, Contentful, Next.js, Netlify, headless CMS, Shopify, Pantheon, WP Engine, Git, training, package management, infrastructure, migration, content management, Hubspot, Hubspot CMS, Marketo, Unbounce, MailChimp, HTML email templates, CRM, marketing campaigns, customer journeys, SEO, SEM, marketing, Optimizely for CMS and A/B testing, Topjson, Geojson, D3 for data visualization, social media management, and audio/video integration to launch custom-tailored code for websites. Project lead, tech lead, and mentored fellow colleagues in marketing and web developers for best and improved practices. Managed multiple CMS, tech stack, and hosting platform migrations. Detailed understanding of complex, up-to-date programming languages and considerations. Took an innovative approach to actualize organizational marketing plans that lead to more lead gen and ROI.