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PROJE ÖZETİ Bu proje bir demo, geçici MVP veya “sonra düzeltiriz” işi değildir. Amacımız; Trendyol benzeri platformlar seviyesinde, temiz mimariye, doğru ödeme akışına ve yarım işlere sıfır toleransa sahip, üretime hazır bir pazar yeri çekirdeğini tamamlamaktır. Öncelik sıralamamız: Teslimat hızı (kaç günde teslim edebileceğiniz) Teslimat kalitesi (hatasız ve kanıtlanabilir çıktı) Fiyat (ikincil öncelik) Bu projede geliştiriciler yalnız bırakılmaz. Tam teknik rehberlik sağlayan güçlü bir iç ekiple çalışırsınız. TAM TEKNİK VE ÜRÜN DESTEĞİ Projede doğrudan erişiminiz olacak çekirdek ekip: Mira – Mimari ve Teslimat Kontrolü Sistem mimarisi kararları Yol haritası ve kapsam kilidi Risk yönetimi Nihai kabul / reddetme yetkisi Esra – Ödemeler, Güvenlik ve Üretim Stripe, webhook, idempotency Sipariş–ödeme mimarisi Güvenlik ve üretim standartları Kod inceleme ve teknik blokaj kararları Ayşe – Ürün, Operasyon ve Kabul Uçtan uca kullanıcı senaryoları Kabul testleri Gerçek kullanım doğrulaması Eksik veya zayıf teslimatların reddi Mantık, ödeme akışı veya edge-case konularında takılırsanız; net yönlendirme, örnekler ve açık kabul kriterleri sağlanır. PROJENİN MEVCUT DURUMU Çekirdek sistem iskeleti mevcuttur Repository yapısı ve temel mimari hazırdır 160–170 maddelik teknik envanter referans olarak vardır Proje sıfırdan değil, mevcut sistemi tamamlama ve kapatma işidir Bunu, temeli atılmış bir binaya kat çıkmak gibi düşünebilirsiniz. PROJE KAPSAMI – 6 ANA MODÜL 1) Marketplace Core Sipariş yaşam döngüsü (oluşturuldu, beklemede, ödendi, başarısız, iade) State machine mantığı Çekirdek API akışları 2) Ödemeler ve Stripe Entegrasyonu Payment Intent oluşturma Webhook imza doğrulaması Sipariş–ödeme eşleştirmesi Idempotency yönetimi 3) Yönetici Paneli ve Rol Yönetimi Admin / personel rolleri JWT tabanlı yetkilendirme Sipariş, ürün, kategori yönetimi 4) Ürün ve Kategori CRUD Oluştur / düzenle / sil Doğrulama kuralları Ürün–kategori ilişkileri 5) Test, Loglama ve Stabilizasyon Edge-case senaryoları Fail / retry mantığı Hata ve denetim logları 6) Teslimat, Dokümantasyon ve Kabul PR’lar ve commit’ler Kısa demo videosu Yazılı teknik açıklama (PDF veya metin) Kapsam dışı maddelerin açık listesi 170 maddelik teknik envanter, bu 6 modülün detaylandırılmış halidir. ÇALIŞMA MODELİ Proje 2 geliştiriciye verilecektir Görevler net bölünür, çakışma olmaz Saatlik değil, teslimat bazlı ilerlenir Mikro görev → kabul → sonraki aşama Önce küçük ama gerçek bir görevle başlanır. Başarılı olursa tam sistem teslimatına geçilir. TESLİMAT VE KABUL KURALLARI Bir teslimat yalnızca şu şartların tamamı sağlanırsa kabul edilir: Çalışan kod PR / commit 2–5 dakikalık ekran kaydı Yazılı teknik açıklama (PDF veya metin) Son tarih kaçırılırsa teslimat kabul edilmez ve ödeme yapılmaz. “Sonra düzeltirim” yaklaşımı kabul edilmez. TEKLİFİNİZDE OLMASI GEREKENLER Lütfen açıkça belirtin: Kaç günde teslim edebilirsiniz? En güçlü olduğunuz alan (backend, admin, ödemeler) Kaç benzer proje tamamladınız? PR + video + kabul sürecine uygun musunuz? (Evet / Hayır) Öncelik hızdır. Süre eşitse fiyat değerlendirilir. ELENME KRİTERLERİ “Sadece fonlama sonrası başlarım” → Reddedilir “Önce demo yapalım” → Reddedilir “Sonra temizleriz” → Reddedilir Hız, netlik ve sonuç odaklı çalışıyoruz. SON NOT Biz şunları sağlıyoruz: Mimari Rehberlik Net kabul kriterleri Sizden beklenen: Hız Disiplin Temiz teslimat Uygunsa teklifinizi gönderin. En hızlı ve en net adaylarla hemen başlarız.
Project ID: 40066940
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Active 23 days ago
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19 freelancers are bidding on average $31 USD for this job

Merhaba, Projemizin gereksinimlerini tam olarak anladım ve bunun için gereken hız, disiplin ve uzmanlıkla yanınızda olmaktan mutluluk duyarım. Üretime hazır pazar yeri projesinde, ödeme akışları ve yönetici paneli gibi kritik bileşenlerle ilgili sağlam deneyimim var. Daha önce benzer projelerde başarıyla görev aldım ve teknik rehberlik sunan bir ekip ile hızlı ve temiz bir teslimat sağlamaya hazırım. Projeyi 10 gün içerisinde teslim edebilirim (çalışmalar 2 geliştirici ile net bir şekilde bölünecek). Ayrıca, öncelik sıralamasına göre hız ve kalite esaslarından ödün vermeyeceğim.
$30 USD in 1 day
6.7
6.7

Hi, I have read your project description and understood it. You need to complete a production-ready marketplace core with clean architecture, robust order lifecycle, Stripe payment integration, webhooks, admin panel with role management, product/category CRUD, and full testing and stabilization. The delivery model requires verified PRs, short demo videos, and written explanations for every accepted task, working closely with your internal team for guidance and acceptance. I can step in to handle backend logic, payments, and admin panel development with precise, production-quality output. and i can deliver a fully functional, error-free marketplace core with Stripe integration, admin panel, and documented acceptance-ready tasks according to your standards. Regards, M Sohaib
$20 USD in 2 days
4.7
4.7

Hi Hac, Bu proje için üretim düzeyinde, hatasız çalışan bir Marketplace Core kuracağız; Stripe entegrasyonu, webhook doğrulama ve idempotency konularında deneyimli bir ekip olarak çalışıyoruz. 2 kişilik güçlü bir ekip ile temiz mimari, güvenli kimlik doğrulama (JWT) ve Admin paneli sunacağımız için, PR ile teslimatlar ve kısa video ile kanıt sağlanacaktır. Yaklaşımım: - Modüler mimariyle Order lifecycle (created -> pending -> paid -> failed -> refunded) akışını kurarız, durum makineleriyle güvenilir kararlar alırız. - Payments: Payment Intent oluşturma ve webhook imzası doğrulama, idempotent işlemler için özel mekanizmalar. - Admin: JWT tabanlı yetkilendirme, rol yönetimi, ürün/kategori CRUD. - Testing & Stabilization: edge-case senaryoları, loglama, hataları yakalama, retry mekanizmaları. - Deliverables: PR/commitler, kısa 2–5 dk video demo, yazılı dokümantasyon ve Acceptance Criteria listesi. Projeye hemen başlayabiliriz. İlk küçük görevi başarıyla tamamlayıp doğruladığımızda sonraki aşamaya geçeriz; toplam teslim süresi 28 gün olarak planlanmıştır. Projede üretim ortamı için hangi özel kabul kriterlerini (idempotency, webhook güvenliği, loglama ve denetim izleri gibi) en kritik olarak görüyorsunuz? Best regards, Ahmet
$28 USD in 28 days
3.1
3.1

Your goal to complete a production-ready marketplace core with zero tolerance for partial work is clear. I will deliver error-free Node.js backend modules covering order lifecycle, Stripe payment integration with secure webhook handling, JWT-based admin panel role management, product-category CRUD, and robust testing. I have successfully delivered multiple marketplace APIs with Stripe integration under tight deadlines, ensuring clean architecture and flawless payment flows. I am comfortable with PRs, screen recordings, and thorough documentation. Expect fast delivery within your timeframe. I can start immediately and provide a small task preview. Regards, Tiaan
$23 USD in 14 days
2.6
2.6

Hey Hac Mehmet A., I just finished reading the job description, and I see you are looking for someone experienced in Web Development, Database Development, DevOps, Graphic Design, Illustration, User Experience Research, Software Engineering, Software Development, User Interface / IA and Payment Gateway Integration. This is something I can do. Please review my profile to confirm that I have great experience working with these tech stacks. While I have a few questions: 1. Are all these requirements? If not, please share more detailed requirements. 2. Do you currently have anything done for the job, or does it have to be done from scratch? 3. What is the timeline to get this done? Why Choose Me? 1. I have done more than 250 major projects. 2. I have not received a single bad feedback in the last 5-6 years. 3. You will find 5-star feedback on the last 100+ major projects, which shows my clients are happy with my work. I will share with you my recent work in the private chat due to privacy concerns! Please start the chat to discuss it further. Regards, Fatima Waqar.
$30 USD in 1 day
2.4
2.4

Hi, I’m Mst Habiba Hasan, I am a Senior Full-Stack Developer with more than 10 years of experience. I can help you with: — Website development — Mobile app development — Web app development — Backend development — AI and Machine Learning development — Maintenance of existing projects — UX/UI design — Browser extensions — DevOps — Solution Architecture — Consulting — MVP development Technologies I've worked with include but are not limited to: * Python/ Django * ReactJS / React Native (including React Native Web) / Expo / Express / Redux / NextJS * Javascript / Typescript / Flow types * NodeJS / Angular / Vue.js * MongoDB / SQL (MySQL / MariaDB / PostgreSQL) / Redis * OAuth2 / Keycloak / Auth0 / Cognito * Kubernetes / Helm / Docker / Ansible / Terraform / Amplify / Firebase * AWS / Azure / GCP / on premises * RESTful / GraphQL / OpenTracing / AMQP (RabbitMQ) Contact me today to get started! I’m excited to collaborate and bring your vision to life. Best regards, Mst Habiba Hasan
$30 USD in 2 days
3.6
3.6

Hello, HacMehmet ✌️ I appreciate your project post. I think your goal for this task is to streamline the order and payment process, enhance admin capabilities, and ensure fast delivery with a small team. In my previous project, I worked on a similar marketplace platform where I implemented a seamless order processing system, integrated payment gateways, and enhanced admin functionalities. The project achieved a success rate of 92.3%, and this experience has equipped me with the skills to deliver a production-level marketplace core that meets your requirements. As a result, your marketplace will have efficient order processing, secure payment handling, and streamlined admin operations, all leading to improved customer satisfaction and operational efficiency. OK, let's discuss your task in more detail. ✌️ Best regards, Bogoljub
$20 USD in 3 days
1.5
1.5

Hi there, I build production-grade marketplace backends with clean order states, Stripe payments, and admin panels. I understand this is not an MVP. You need a fast, clean, and fully verifiable delivery with zero tolerance for partial work. I can handle Marketplace Core and Stripe integration or Admin and CRUD modules. I work strictly via PRs, demo videos, and written technical notes. Delivery: first task in 2–3 days Strongest area: backend, payments, architecture Similar projects: 5+ PR + video + acceptance flow: Yes Regards Chirag
$15 USD in 2 days
1.3
1.3

Hi there, I understand that your main goal is to develop a production-level marketplace core that effectively manages orders, payments, and admin functionalities while ensuring fast delivery. In my previous role, I successfully implemented a Stripe payment integration for an e-commerce platform, resulting in a 25% increase in transaction efficiency. Additionally, I developed a robust admin CRUD interface that streamlined operations, reducing administrative workload by 40%. To meet your requirements, I will create a scalable marketplace core using Stripe webhooks for seamless order and payment processing. I will also design an intuitive admin panel for efficient management, ensuring fast delivery and a smooth user experience. I would be happy to discuss your needs and get started right away. Best regards, Artem
$20 USD in 7 days
1.0
1.0

Hi, Dear!!! I can deliver assigned modules within X–Y days, focusing on clean backend architecture and production-ready Stripe payment flows. I have completed multiple marketplace and payment-centric systems, including order lifecycle management, webhooks, and idempotency handling. I am strongest in backend development and payments, with strict attention to edge cases and failure scenarios. I fully agree to the PR + demo video + written explanation + acceptance-based delivery process. I work fast, disciplined, and with zero tolerance for unfinished or “fix later” work.
$20 USD in 7 days
0.6
0.6

Hey Hac Mehmet A., I just finished reading the job description and I see you are looking for someone experienced in Illustration, User Experience Research, User Interface / IA, Graphic Design, Software Development, DevOps, Web Development, Database Development, Software Engineering and Payment Gateway Integration. This is something I can do. Please review my profile to confirm that I have great experience working with these tech stacks. While I have few questions: 1. These are all the requirements? If not, Please share more detailed requirements. 2. Do you currently have anything done for the job or it has to be done from scratch? 3. What is the timeline to get this done? Why Choose Me? 1. I have done more than 250 major projects. 2. I have not received a single bad feedback since the last 5-6 years. 3. You will find 5 star feedback on the last 100+ major projects which shows my clients are happy with my work. Timings: 9am - 9pm Eastern Time (I work as a full time freelancer) I will share with you my recent work in the private chat due to privacy concerns! Please start the chat to discuss it further. Regards, Haseeb.
$10 USD in 3 days
0.0
0.0

Hi there, I’m super pumped about your project for the Production-Level Marketplace Core. I totally get that you’re looking for a solid team to deliver a clean architecture with a flawless payment flow, and that speed is key. With my experience in backend development, Stripe integration, and admin CRUD operations, I'm all in for delivering high-quality work fast. I’ve tackled similar projects before, ensuring that everything runs smoothly and meets top-notch standards. I can whip up the core functionalities in no time, set up the Stripe webhook, and ensure everything is rock solid. Plus, I’m ready to hit the ground running with your team, following your clear guidelines for delivery and acceptance. Let’s make this happen and create something awesome together! Best regards, Uros S
$20 USD in 7 days
0.0
0.0

Hi, there! Thanks for your post. I've read your proposal very carefully and I am very excited and confident about it. I understand that you need a robust, production-ready marketplace core with a clean architecture, solid payment flow, and zero tolerance for incomplete work, similar to platforms like Trendyol. I have full experience in backend development, payment integrations, and marketplace systems. Please look at my approach: - First, I'll assess the existing core structure and enhance it to ensure a seamless order lifecycle and API flows. - Next, I'll implement the Stripe integration focusing on payment intent creation, webhook signature verification, and order-payment matching with idempotency management. - Lastly, I'll create a comprehensive admin panel with role management, ensuring smooth CRUD functionality for products and categories. I can start immediately and deliver excellent results within your timeline. With my focus on speed, quality, and clear deliverables, I'm ready to meet the project's demands. Looking forward to your response. Best Regards.
$10 USD in 7 days
0.0
0.0

Hello, how are you? I firmly believe that the quality and expertise I offer are unmatched in the industry. Why Choose Me? 1. Extensive Experience: I have a strong track record of working successfully with diverse clients on a variety of projects. 2. Exceptional Quality: My dedication to perfection guarantees careful attention to every detail and a final outcome that surpasses your expectations. I look forward to the possibility of partnering with you!
$20 USD in 7 days
0.0
0.0

Hello Hac Mehmet, The most fragile point in any marketplace is the payment boundary. I can harden Stripe integrations by tightening webhook verification, enforcing replay protection, and aligning async payment events with a strict internal state model. You’ll get concise PRs, focused commits, and short demo evidence per delivery. No broad rewrites, no speculative refactors, only what improves correctness, safety, and completion velocity. Looking forward to discussing your priorities. Best regards, Nikunj
$35 USD in 7 days
0.0
0.0

Selçuklu, Turkey
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