Full-Stack Developer for Doggy Marketplace App

@augurstech

A Warm Hello! We are readily available to start working on this project! We are confident to provide you Doggy Marketplace App Backend & Integration project. Your vision for a modern dog walking and sitting marketplace aligns strongly with our experience building scalable marketplace ecosystems, real-time applications, and production-grade backend infrastructures. Our team has extensive expertise in NestJS, PostgreSQL, Flutter integrations, WebSocket systems, payment gateways, and scalable cloud architectures, making us highly confident in delivering a stable and launch-ready MVP within your expected timeline. We specialize in marketplace and service-booking platforms that require: - Complex booking/state management - Real-time communication systems - Payment and payout flows - Admin moderation systems - Scalable backend APIs - Flutter app integrations Looking forward to collaborating with you on building Doggy into a scalable and successful marketplace platform. Best regards, Ana

@irsolutions

With over a decade of experience in full-stack architecture and high-scale systems, I understand your need for a seasoned backend developer to bring your Doggy Marketplace App to life. Having successfully scaled projects to serve over 1 million users, I am well-equipped to tackle the complexities of integrating live APIs, building authentication systems, real-time chat features, and more for your marketplace app targeting the Israeli market. A strategic insight for ensuring scalability and security in your project is to implement robust JWT session management combined with granular user/walker profile controls. This approach proved effective in a similar project where I managed to handle a high volume of user data seamlessly. I am eager to discuss the roadmap for your Doggy Marketplace App further and explore how my expertise can contribute to its success. Please feel free to reach out to me to arrange a discussion on how we can collaborate effectively on this project.

@diektech

Hi — Elias here from Miami. The real challenge in developing a doggy marketplace app lies in ensuring seamless integration between the frontend and backend, particularly when using NestJS with Flutter. This involves not just building a functional API, but also managing the complexities of data synchronization and user state effectively. A common failure in such systems is improper state handling, which can lead to inconsistent user experiences, especially during high traffic. Furthermore, caching strategies and permissions management are critical to avoid bottlenecks and security issues down the line. I’d approach this by implementing a microservices architecture that allows for independent scaling of components. This enables the system to handle varying loads efficiently, using PostgreSQL for relational data and Redis for caching frequently accessed data. The API design should prioritize RESTful principles, ensuring clarity and ease of integration. The hardest decision early is determining how to structure user permissions and access control to prevent unauthorized actions while maintaining a smooth user journey. Trade-offs here can significantly impact both security and usability. What considerations do you have regarding user data privacy and how it will be managed within the marketplace? Looking forward to discussing this further.

@ominfowave

Hello We are Ominfowave Software Services Pvt. Ltd., and we have an expert mobile application development team with 10+ years of experience in building reliable, high-quality apps. ? Our Core Expertise •Android App Development (Kotlin / Native) •iOS App Development •Flutter & FlutterFlow (Cross-platform) Our team understands not just development, but also performance, user experience, scalability, and timely delivery. ? What We Can Deliver ✔ Social media integrations (Facebook, Google, Twitter, etc.) ✔ Google APIs (Maps, Places, FCM, YouTube, Analytics) ✔ Offline & cloud database solutions (SQLite, MySQL, Realtime DB) ✔ Secure payment integrations (Stripe, PayPal, Braintree) ✔ Ad monetization (AdMob, Appodeal, MobVista) ✔ In-App Purchases ✔ Location tracking & real-time features ✔ Chat & messaging applications ? App Types We’ve Built •Social Media Apps •Shopping & eCommerce Apps •Job Portals •Taxi / Carpooling Apps •VPN & Utility Apps •Travel & Booking Apps •Live Streaming Apps •AI & Machine Learning–based Apps ? Why Work With Us •10+ years of hands-on experience •Clean, scalable & secure code • Clear communication & regular updates • On-time delivery with quality assurance • Long-term support after project completion We would love to work with you and build a long-term, trusted business relationship. Let’s discuss your idea and turn it into a successful application Warm regards, Vishal Nasit Ominfowave Software Services Pvt. Ltd.

@installerpoint

As a seasoned Full-Stack Developer with over a decade of hands-on experience, I confidently assert that your search finds its end with me. Throughout my career, I've undertaken diverse projects ranging from SaaS platforms to AI-powered systems, which have refined my expertise in the stack you require for your Doggy Marketplace App. Regardless of whether it's Laravel or NestJS, PHP or Node.js, I'm well-versed and proficient in them all. But more than that, what sets me apart is my passion for crafting solutions that help businesses thrive. It's not just about writing clean codes; it's about leveraging technology to build efficient and scalable products, products that actually make a difference. This zeal and my unflinching commitment to delivering supreme quality work have earned me enduring relationships with clients who vouch for my astute problem-solving skills and reliable delivery. My profound technical knowledge and proven track record align perfectly with your project requirements. The robust backend development you need with features like real-time chat, JWT sesssions management compatible with your flutter front-end, are things I specialize in implementing smoothly. Furthermore, my past experience in integrating various payment systems including Prisma ORM makes me highly competent for this role. With me on board as your freelancer, rest assured that you will not only get your job done but get long-term support from me in optimizing and scaling your platform.

@sulemanshahjahan

As an experienced full-stack developer with a keen eye for detail and a knack for API integration, I believe that I am the perfect match for your Doggy marketplace app project. My **404 five-star reviews** and **12 years of experience** speaks volumes about my expertise, with my recent transition to an AI-powered approach adding an extra layer of innovation to my skill set. Though my previous work may not directly align with your current project, what I've developed since then revolves around the same core principles - automating tasks, integrating APIs and creating solutions in real-time. For instance, I've built **AI chatbots embedded in WordPress** that can cater to customer inquiries 24/7, and created **automated content pipelines** for diverse purposes including SEO and product copy. What distinguishes me from other developers is my adaptability and responsiveness. Your project timeline of 8-9 weeks fits with my availability, and I'm more than ready to hit the ground running as soon as we are in agreement. I work solo - meaning communication will be direct, efficient and you can be guaranteed that all codes are written by me rather than being outsourced. With such a practical approach providing your Doggy app with a sturdy backend focusing on features like authentication, booking engine, push notifications and much more - will be breeze! Excited to be considered for this opportunity.

@DeveloperStation

Hi there, We’ve built several marketplace apps, including a dog-walking platform, where we developed a complete backend with features like user profiles, booking engines, payments, and real-time chat. We also integrated with Flutter and React for front-end development. As a team of dedicated back-end developers, we can assign specialists for specific tasks, ensuring you get the best expertise at an optimal cost. We’re also well-versed in server management and CI/CD pipelines, so we can handle everything from development to production seamlessly. Let’s schedule a 10-minute call to discuss your project in more detail and see if I’m the right fit for your needs. I’m eager to learn more about your exciting project. Best, Adil

@Webtechfusion23

As an experienced Full-Stack Web Developer, I have a proven track record in building and delivering multi-faceted projects on-time and within budget. With solid skills in Node.js, PostgreSQ, Redis, TypeScript, and NestJS -- all of which align with the tech stack mentioned -- I believe I would be an ideal fit for your Doggy Marketplace App project. My portfolio showcases diverse projects including enterprise resource planning systems, content management systems, inventory management systems, accounting management systems, data analytics dashboards and payment integration software - areas which align with your needs. Moreover, my expertise in real-time systems using WebSockets and messaging would help deliver the live tracking and push notification functionalities you seek. While I'm a solo freelancer, I'm adept at handling complete development cycles from analysis to deployment. Known for my meticulous attention-to-detail, I can ensure timely integration of Flutter frontend with your live APIs and guarantee smooth product experience through comprehensive loading/error state implementation and Socket.IO+FCM integration. As an added advantage, my domain knowledge of payment processors such as Tranzila will assist in diligently catering to all payment-related requirements of your Israeli-focused app. Let's create something doggone amazing together!

@dgmstudioinfo

Hi! I’ve reviewed the requirements for the Doggy app. Building a robust booking state machine and real-time infrastructure (chat/live tracking) perfectly matches my expertise with NestJS, PostgreSQL, Prisma, and Socket.IO. I understand the scope: I'll build the production backend, the React Admin MVP, and wire the 54 Flutter screens to live APIs, while your dev handles UI. Relevant Projects: Specialized in complex Node.js/NestJS architectures. [Inserta tus links aquí]. NestJS/PostgreSQL Exp: My primary stack. Extensive experience building APIs with Prisma, Postgres (PostGIS for spatial queries), and BullMQ/Redis for background jobs. Flutter Integration Exp: Highly comfortable in existing codebases. I will connect REST APIs, WebSockets, and FCM without disrupting the UI. Availability & Timeline: Available immediately. I estimate 40 to 45 working days for the full backend, admin, and Flutter integration, achievable with strict Agile workflows. Solo/Agency: Solo Freelancer. Direct communication, zero agency overhead. Regarding Tranzila: I've integrated Stripe/PayPal and can efficiently integrate Tranzila using their API docs for the Israeli market. I’d love to review the BRD/TSD docs to analyze the booking state machine. Let’s connect! Mauricio | Full Stack Developer

@ciss26

Hello, I hope you are doing well. I understand that you are looking to build a DOG MARKETPLACE MOBILE APPLICATION, and I would be happy to help. I have extensive experience in designing and developing applications and have successfully delivered many projects. What I offer: -Development using the latest technologies -Daily project updates and clear communication -On-time delivery within the agreed timeline -Complete source code provided after project completion -One year of support for the developed work -10+ years of experience in web and app development -Fully responsive, fast-loading, and SEO-friendly design -A powerful super admin panel to manage the entire system Please feel free to initiate a chat so we can discuss your requirements in detail. Thank you and regards, Dheeraj K.

@temoberishvili

Hi there, I see you need a backend developer for your Doggy Marketplace App focusing on NestJS and Flutter integration. To tackle this project, I’d set up the API using NestJS, ensuring efficient communication between your mobile app and the backend. Using PostgreSQL for database management will provide solid performance, while Redis can help with caching to enhance speed and responsiveness, especially for user interactions. I'd start by establishing the backend architecture, then proceed to integrate the Flutter app with the API for seamless data flow. Q1: Do you have specific features in mind for user interactions that we should prioritize? Q2: How do you envision managing user data security and privacy within the app? Q3: Are there any third-party services or APIs you plan to use for additional functionalities? Let’s get this project moving!

@softwarelinkerrs

As a trusted full-stack dev and founder of SoftwareLinkers, I've built a solid reputation creating scalable, data-driven web apps and RESTful APIs. My experience in backend development aligns perfectly with your needs for the Doggy Dog marketplace app. Through the use of NestJS paired with TypeScript, PostgreSQL, and Prisma ORM, I assure your dog-walking app will have a solid foundation ensuring safe and secure transactions. My proficiency with Flutter integration will enable me to seamlessly incorporate the app's front-end UI into your project without compromising performance. Throughout my tenure in technology, one thing that has always resonated with every client I've served is my understanding of their business goals before embarking on any project. This approach ensures that my solutions are geared towards not just meeting expectations but exceeding them. I believe that my knowledge extends beyond mere coding - it extends to understanding your end user's needs. Combining this awareness with my skills in payment processing and real-time systems, we can deliver a sophisticated system that serves all parties involved: users, walkers, and the overall admin team. As an additional advantage, I am fully versed in AI-powered features & system integrations which may prove useful for any potential expansion plans for your project.

@yuliussmayoru

Backend marketplace apps like this usually get risky around booking flow complexity, payment edge cases, and real-time sync between Flutter, admin, and backend so I’d solve that by building the core system around clean domain logic, strong API contracts, and a structure that stays stable as features pile up. Honestly, this is the kind of project I like most because it is not just about shipping endpoints, it is about making the whole product feel dependable in production. With the Flutter UI already mostly done, the real value now is in connecting everything properly, replacing mock data cleanly, handling loading and error states well, and making sure bookings, chat, notifications, payments, and moderation all work together without turning the codebase into a mess. I’m comfortable with API-heavy systems and production backend work where auth, payments, state transitions, queues, notifications, and admin tooling all need to be designed as one connected platform. I can take ownership of the backend, coordinate smoothly with the Flutter developer, and build the React admin panel in a practical way without overcomplicating it. I also work in a very incremental way, so core flows can be delivered and reviewed early instead of waiting until the end to discover architecture problems. If the BRD and TSD are solid, I’d be happy to turn this into a production-ready MVP that is clean, maintainable, and ready for launch.

@meeranas

With my extensive knowledge and hands-on experience in backend development, I am confident that I am the best candidate for your Doggy Marketplace App project. Over the past 8+ years, I have successfully completed several projects similar to yours, managing full-cycle development from startups to large enterprises. My proficiency spans across multiple frameworks like Node.js, NestJS, and PHP that align with your technology stack requirements. Additionally, having worked on production backend systems inclusive of critical features such as authentication & sessions management, user profiles, bookings and payments integration, among others; I have solidified my understanding of their importance in delivering a robust product. My command over PostgreSQL and Prisma ORM also ensures that your database and data management needs are efficiently met. Trust me to provide not just the technical know-how but a strategic implementation plan that would help you meet your project deliverables within optimal time. Let's bring Doggy to life together for Israel's dog lovers while keeping an eye on scalability post-MVP launch. As a solo freelancer, you'll have my undivided attention throughout the project; ensuring quality, timeliness and even potential long-term work relationship. Reach out and let's exceed your expectations in this exciting project!

@vladang

You’re already past the risky part with 50+ Flutter screens built, so the real challenge now is making the backend stable enough that the frontend team can integrate without constantly fighting inconsistent states or broken flows. I’d start by locking down the booking lifecycle first since that affects payments, chat, notifications, disputes, and live tracking downstream. In NestJS I’d structure the booking engine around explicit state transitions so cancellations, refunds, overlaps, and payout timing don’t become edge-case chaos later. For the Flutter integration, I’d replace mock data screen-by-screen while adding proper loading, retry, and socket reconnect handling instead of treating API hookup as a final phase. Redis + BullMQ would handle notifications, OTPs, payout jobs, and delayed booking events cleanly. I worked on Bubbl using Vue/Nuxt + Express where real-time interactions and async job handling became the difference between a smooth app and constant support issues, so I’m careful about operational stability early. I’m available to start immediately and can handle both the NestJS backend and the React admin panel coordination with the Flutter developer.

@abhishek060

Hi, Doggy is the kind of marketplace app where the backend architecture will directly impact scalability and reliability — especially with bookings, payments, chat, and real-time updates all working together. Since your Flutter UI is already largely completed, the main priority now is building a stable production backend and integrating all screens cleanly with live APIs. My focus would be: • NestJS + PostgreSQL backend • Booking engine & auth flows • Real-time chat and payment integration • Flutter API integration with proper state handling • React admin panel for moderation tools I’ve handled backend-heavy applications involving real-time systems, marketplace logic, and API integrations where stability and maintainability were critical. Estimated timeline aligns well with your 8–9 week target. If you share the BRD/TSD documents, I can review the architecture and discuss the implementation approach further. Regards, Abhishek

@santoshkumars17

With over 5 years of professional experience as a full-stack developer, I am confident that I am the ideal choice for your Doggy Marketplace App project. My expertise extends to both frontend and backend development, and I have successfully delivered numerous high-quality applications from ideation through to deployment. I have a deep understanding of your technology requirements including Node.js, NestJS and PostgreSQL, all of which I actively use in my work. My vast portfolio speaks volumes about my ability to handle complex projects requiring authentication, user profiles, live APIs integration, and payments processing; among others. Moreover, I have prior experience with Flutter integration and real-time systems like WebSockets that will be beneficial in fulfilling your project's specific needs. Importantly, my commitment to clean, optimized code and on-time delivery aligns well with the professional approach you seek for this task. As an added value, I bring an entrepreneurial mindset fortified by my familiarity with marketplace app architectures. Being a multilingual professional also allows me to adapt seamlessly to diverse cultures - making me compatible with your proposed Israeli market focus. Given the outlined requirements and schedule, I am confident that I can deliver on time and exceed your expectations; forging a long-term collaboration if needed after the MVP launch. Let's connect soon!

@Hubready

Hello! I am a Florida-based senior software engineer with over 15 years of experience in full-stack development, including mobile app development and backend systems. I’ve carefully read the project description for your Doggy Marketplace App and I’m excited about the opportunity to contribute to its success. My expertise with technologies like NestJS, Flutter, and PostgreSQL aligns perfectly with your needs. I’ve built production-grade applications that scale effectively and deliver a seamless user experience. For instance, I developed an e-commerce app that connects pet owners with local services, and I've also created a marketplace platform for pet supplies that features real-time data syncing. Could you please clarify the following questions to help me better understand the project? 1. What specific features do you envision for the backend integration with Flutter? 2. Are there any third-party APIs you plan to use that I should be aware of? I believe in a structured approach, starting with a detailed project plan followed by regular updates and iterations to ensure alignment with your vision. I’m the serious and dedicated professional you’re looking for, ready to deliver exceptional results. Let’s chat about how I can help bring your vision to life! -James

@SkillCrafts

Your Doggy Dog Marketplace project aligns perfectly with my recent experience building high-performance platforms using NestJS and Flutter. I specialize in creating seamless user experiences that handle complex data relations without compromising on mobile speed. My focus is on bridging a robust, scalable backend with a responsive cross-platform interface, ensuring your marketplace scales smoothly as your community of pet owners grows. I will architect the NestJS backend with a modular structure, utilizing TypeORM to manage the relationships between listings, profiles, and transactions. On the Flutter side, I’ll implement Riverpod for state management, ensuring UI updates happen instantaneously via WebSocket integration. I will also prioritize security by deploying JWT-based authentication to safeguard user privacy. To keep development transparent, I’ll provide interactive Swagger documentation, allowing us to validate logic and integration points at every stage of the build. Are you planning to incorporate an escrow-style payment system, or will the initial version focus on listing discovery and direct messaging? Additionally, do you already have UI/UX designs finalized, or would you like me to help optimize the user flow for mobile navigation? I am ready to discuss your requirements and milestones whenever you have a moment. Let me know if you’d like to hop on a quick call to align on the technical roadmap and get this marketplace moving forward.