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— ENGINEERING TENDER // SPRINT CONTRACT

28 Days

Contract delivery sprint

B2B Cross-Border E-commerce Application Developer (China → Bangladesh)

6 Stacks

NestJS · Next.js · Flutter · DBs

2 APIs

1688 wholesale & My Choice logistics

+ SYSTEM ARCHITECTURE

Cross-Border Logistics & Dropshipping Engine

Our platform facilitates wholesale procurement and freight coordination from China directly into Bangladesh. Engineering teams must deliver high-concurrency ingestion and resilient order routing.

1688 Catalog Synchronization

My Choice Logistics API Bridge

Automated product mapping, real-time supplier inventory polling, tiered price tier recalculation in BDT, and immediate dropship checkout generation via official supplier API bridges.

Unified airway bill generation, container customs status polling, freight tracking updates from Chinese hubs to local fulfillment centers, and merchant notification hooks.

■ CORE TECHNOLOGIES

Standardized Architecture Stack

All submissions must align strictly with our pre-architected production stack to ensure seamless handoff and modular scalability across web, mobile, and data pipelines.

NestJS & Microservices

Next.js & Flutter Clients

PostgreSQL, Mongo, Redis

Modular TypeScript services handling authentication, product mapping, payment verification, and asynchronous queue management via BullMQ.

High-performance Next.js web application for wholesale buyer operations paired with reactive Flutter mobile apps for real-time tracking.

Relational transactions in PostgreSQL, flexible JSON catalog schemas in MongoDB, and ultra-fast caching and rate limiting via Redis.

— SUBMISSION INSTRUCTIONS

Evaluation & Screening Requirements

We evaluate working software and verifiable engineering practices. Review our screening framework prior to completing your formal contractor application.

Live URLs Over Files

4-Week Delivery Commitment

Retainer & SLA Support

Do not attach PDFs or zip files. We require live staging URLs, public GitHub repositories, and interactive demo links for instant technical verification.

Candidates must commit to full-time availability (40+ hours weekly) across the 28-day sprint cycle to meet strict delivery milestones.

Engineers delivering the core four-week sprint will be granted right-of-first-refusal for recurring monthly maintenance and SLA retainers.

/ দরখাস্ত ফরম // APPLICATION FORM

Engineering Application

নিচের ২০টি প্রয়োজনীয় ফিল্ড সতর্কতার সাথে পূরণ করুন। লাইভ লিংক ও ডেমো ইউআরএল আবশ্যক। আপনার আবেদন সম্পূর্ণ গোপনীয়তার সাথে আমাদের টেকনিক্যাল টিম যাচাই করবে।