Hire the Best Resin Developers

I build reliable, production-ready Flutter applications that are designed to perform well long after they're launched. My QA background helps me catch issues before your users do, resulting in smoother releases, fewer bugs, and lower maintenance costs. Using Flutter, Firebase, REST APIs, BLoC/Cubit, and clean architecture, I develop scalable mobile applications that are fast, maintainable, and built for real-world use. Unlike many developers who focus only on implementation, I also validate user flows, investigate edge cases, reproduce bugs, and thoroughly test every feature before release. This development-first, QA-focused approach helps deliver polished apps that users can rely on. I've worked on mobile applications across multiple industries, including: • Logistics & Transportation • Renewable Energy • Service Marketplaces • Business & Productivity Solutions Core Flutter Development ✅ Flutter App Development ✅ Firebase Integration ✅ REST API Integration ✅ BLoC / Cubit State Management ✅ Clean Architecture ✅ Performance Optimization ✅ Bug Fixing & Feature Development ✅ App Store & Google Play Deployment Quality Assurance ✅ Mobile App Testing ✅ Functional & Regression Testing ✅ UX & User Flow Validation ✅ Edge Case Testing ✅ Detailed Bug Reports with Screenshots & Screen Recordings Whether you need a Flutter developer to build a new application, improve an existing product, fix complex issues, or thoroughly test your app before release, I can help you deliver a stable, high-quality mobile experience with confidence.

I didn't learn to code. I learned something better. When I discovered Bubble io, it wasn't because I was looking for a shortcut it was because I realized the fastest path from someone's idea to a working product wasn't through months of syntax. It was through logic. And that's where I live. Since then I've built everything from fintech dashboards with live graphical data pulling from multiple integrations, to full marketplace platforms complete with cart systems, subscription billing, and payment flows that actually work under real conditions not just in demos. Here's what I've noticed working in this space: most Bubble developers will hand you something that looks good on a laptop and falls apart on a phone. The database is a mess no one else can understand, and scaling it means starting over. That's not how I build. What I actually focus on: ✅ Stripe & Stripe Connect - subscriptions, payouts, billing logic built to handle real money ✅ API Integrations - OpenAI, Twilio, Google Sheets, webhooks, and whatever your product needs ✅ Dynamic data & live dashboards - real graphical representation, not static placeholders ✅ Database structure that makes sense - clean, scalable, something you can hand to anyone ✅ Fully responsive builds - phone, tablet, desktop, no compromises I've worked across fintech, marketplaces, fitness, and media. The clients I do my best work with are the ones who are open to better ideas when they come up because sometimes the smartest version of your product isn't the original plan, and I'll always tell you that honestly. If you want someone who treats your product like it matters and not just another ticket to close, let's talk about what you're building.

Hey! I'm Slava from the Marevo team. We specialize in web-based 3D configurators and augmented reality for smartphones and tablets, including LiDAR-equipped ones. We also create stunning AR/VR apps for Meta Quest 3 and Vision Pro Find more about us below. Service lines: - 3D configurators and WebAR - AR for mobile devices - AR for Vision Pro - 3D modeling and animation - VR for Meta Quest3 Industry focus: - E-commerce - Construction & Renovation - Advertising & Marketing - Education We use: - Three.js - Unity3D Engine - Vuforia / EasyAR - ARKit / ARCore - Blender, 3Ds Max, Maya - Photoshop, Adobe Illustrator, Figma Our goal is to show that AR/VR technologies are not just for fun but can also be very useful for business. We would be happy to help you create tools for improving your business processes, for example, marketing, production, and logistics. And that's why we don't create games.

Most developers can write code. Fewer can build systems your business can actually rely on. I'm Shreya, a Full Stack PHP and Laravel developer with 10+ years of experience delivering CRM systems, ERP platforms, custom web applications, and API integrations for clients across e-commerce, SaaS, and enterprise sectors. What I specialize in: - Laravel & Symfony web application development - CRM and ERP system design and implementation - REST API development and third-party integrations - Shopify and WooCommerce custom solutions - WordPress plugin and theme development - SEO-optimized architecture and performance optimization I work with startups building their first product and established companies replacing legacy systems. My focus is always the same: deliver clean, maintainable code that solves a real business problem and scales as you grow. I bring more than technical skills, I bring the ability to understand what you're actually trying to accomplish and architect a solution around that outcome. 100% Job Success | Top Rated | Available for long-term engagements If you're building something serious, message me and let's discuss your project.

If you’re looking for a senior developer who understands business logic, checkout optimization, and backend stability at scale, you’re in the right place. With 12+ years of experience and 150+ successful Upwork projects, I operate as a Senior Full-Stack Developer and Backend Architect building scalable SaaS platforms, high-transaction booking engines, and revenue-driven web systems. I am not just another full-stack developer doing generic web development. I design and engineer platforms that handle real transactions, complex API integrations, Stripe payment systems, and scalable Laravel architectures. 𝐖𝐡𝐚𝐭 𝐈 𝐀𝐜𝐭𝐮𝐚𝐥𝐥𝐲 𝐁𝐮𝐢𝐥𝐝: • SaaS platforms using Laravel and modern backend architecture • Travel booking engines (Hotels, Flights, eSIM, Reservations) • Stripe subscription systems and secure payment workflows • Shopify & WooCommerce stores with optimized checkout logic • Custom API development & third-party API integration • Scalable WordPress website development with clean architecture • High-performance front-end development using ReactJS, VueJS & Next.js As an experienced developer and pro developer, I focus on building systems that are secure, maintainable, and built for long-term growth — not short-term patches. 𝗧𝗲𝗰𝗵𝗻𝗶𝗰𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝐁𝐚𝐜𝐤𝐞𝐧𝐝: • Laravel, PHP, CodeIgniter • SaaS architecture • API development & API integration • Stripe & advanced payment systems • Database optimization & caching 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝 • ReactJS, VueJS, Next.js • UI/UX developer collaboration (Figma to production-ready interface) • Conversion-focused checkout flows 𝐂𝐌𝐒 & 𝐂𝐨𝐦𝐦𝐞𝐫𝐜𝐞: • WordPress website development • WooCommerce & Shopify customization • Custom Liquid development • Marketplace & multi-vendor platforms • Website maintenance & performance optimization 𝐂𝐥𝐨𝐮𝐝: • AWS, DigitalOcean deployments 𝗧𝗿𝗮𝘃𝗲𝗹 𝗧𝗲𝗰𝗵 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻 (𝗥𝗮𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲) Few full-stack developers understand production-level travel systems. I’ve built and integrated: • HotelBeds • RateHawk • Expedia • Travelgatex • Skyscanner APIs • Duffel APIs Including availability sync, booking logic, supplier aggregation, and real-time pricing systems. If your startup or OTA platform requires backend reliability at scale — this is where I operate. 𝗠𝗲𝗮𝘀𝘂𝗿𝗮𝗯𝗹𝗲 𝗜𝗺𝗽𝗮𝗰𝘁 • Built complete travel booking ecosystems • Increased application performance by 50%+ through optimization • Engineered high-converting WooCommerce and Shopify checkout systems • Developed SaaS platforms handling recurring Stripe billing • Reduced operational workload through automation & API orchestration 𝗪𝗵𝗼 𝗜 𝗪𝗼𝗿𝗸 𝗕𝗲𝘀𝘁 𝗪𝗶𝘁𝗵 • Travel Agencies & OTAs • SaaS startups • E-commerce brands scaling revenue • Agencies needing a reliable senior back-end developer • Founders replacing unstable development teams • Fixing Vibe coded projects, taking vibe coding MVP to Startup If you’re looking for small one-off fixes, I may not be the right fit. If you’re looking for a senior full-stack developer who can architect scalable systems and own the technical execution — let’s talk. I don’t just build websites. I build scalable revenue infrastructure. Message me to discuss your project — I offer free strategic consultation before development begins.

I’m a Software/AI & VPS Engineer, I can fix anything with zero mistakes n build everythings easily n fastest, i got unlimited Codex token, love to do things OpenClaw, Blockchain, Pipeline, flutter, flutterflow, build tools, Internal tools, Modules, Bot, PineScript, Mod, sys Linux n i can copy any site 100% match quick n easy n i strong in backend and full-stack systems and build Web apps, Mobile Apps, Desktop Apps, Rust/Tauri, Electron, Browser Extension n trading system, n strong Web3 edge (EVM, Stellar & Solana). I turn ambiguous ideas into secure, reliable, human-centered products using TypeScript/JavaScript, React/Next.js, Node.js/Nest, Go, Python, Solidity, Rust (Anchor), and modern infra. I care about clean architecture, measurable impact, and great developer experience (DX) also so features ship fast and safe, also love building an Apps & AI things. for the security side, I bring pentest/audit mindset to every build: threat modeling, fuzzing & invariants, automated checks in CI, and clear, actionable reports. I also provide English technical translation/localization for whitepapers, docs, and UI strings. Languages: TypeScript/JavaScript, Vue, Go, Python, Solidity, Rust (Anchor), Php, Ruby, C & C++ Frontend: React, Next.js, Tailwind, Radix/shadcn, Vite, SSR/SSG/ISR, Flutter Backend: Node.js (Nest/Express/Fastify), Go (Gin/Fiber), GraphQL, REST, gRPC, WebSockets Web3: Solidity, Rust/Anchor, Hardhat, Foundry, OpenZeppelin, viem/wagmi, ethers.js, WalletConnect v2, Safe, The Graph, IPFS Testing: Jest/Vitest, Playwright, Supertest, Foundry (fuzz/invariants), Slither, Echidna Data: PostgreSQL, MySQL, SQLite, Prisma/TypeORM/Knex, Redis DevOps: Docker, GitHub Actions, basic K8s, AWS/GCP basics, Sentry, OpenTelemetry, Tenderly, OpenZeppelin Defender Security: OWASP ASVS/API, RBAC/ABAC, token design, key/secret rotation, rate limiting & anomaly detection, audit reports DeFi staking: with upgradeable proxies storage-safe upgrades, 0 criticals in audit NFT marketplace royalty splits, subgraph indexing, gas-optimized listings Solana program PDA-secured escrow with CPI, wallet-adapter UX, >95% test coverage Payments & off-chain settlement Webhooks + queues, idempotent APIs, chargeback handling Security engagement BOLA/IDOR class bugs identified; implemented header-precedence fixes & authZ binding