Rozwój API Jobs

We are building a multi-seller marketplace as a Telegram Mini App. Full project details shared after NDA signing. TECH STACK — OUR PREFERENCE (OPEN TO DISCUSSION): 15 + TypeScript (Telegram WebApp SDK) Node.js + Express or Python FastAPI PostgreSQL + Redis Docker + Vercel or Hetzner deployment Custom payment API integration (local mobile payment + international payment) We are open to discussing the architecture and tech stack during the design phase. If you have a better approach for our use case, we want to hear it. ARCHITECTURE REQUIREMENT: The backend must be API-first and fully decoupled from the Telegram layer. The same API must support web and mobile clients in the future with no backend rebuild. Service-oriented structure with clear service boundaries from day one. WE W...

I need a developer for a cloud-based pilot project for political media monitoring and communication workflow support. The pilot should: - collect public content from selected news portals, public Facebook pages, YouTube channels, and political/institutional websites - clean, deduplicate, and store content in a database - classify content by topic, tone, target, and urgency - generate short summaries and suggested response drafts using a cloud LLM - provide an internal command board where a user can approve, reject, edit, and route content - integrate with WordPress to create drafts, assign categories/tags, and prepare content for publication - support internal distribution by email / Telegram / WhatsApp only after manual approval - include audit logs showing who logged in, what they revie...

Necesito un bot que acepte viajes en InDrive de forma automática apoyándose en una APK que ya tengo de base. El objetivo principal es mejorar al máximo la rapidez de la aplicación; la optimización general y la capacidad de tomar viajes sin intervención manual completan el alcance inmediato. Compartiré la APK modificable para que puedas ahorrar tiempo y centrarte en pulir rendimiento, depurar latencias y dejar el flujo de aceptación 100 % automático. Requiero un nivel intermedio de ingeniería inversa: lo suficiente para analizar, ajustar y recompilar sin problemas el paquete existente y, si es necesario, abstraer funciones críticas de la app oficial. Entrego acceso a la versión actual, credenciales de ...

I’m ready to launch my own online store and need a skilled developer who can take the idea from concept to a fully functioning e-commerce site. The finished product should look modern, load quickly, and make it effortless for visitors to move from browsing items to completing a purchase. While I’m flexible on the underlying platform, the build must include the core features every serious store requires: product catalogue management, shopping-cart flow, secure payment processing, and an intuitive back-office so I can add or update stock without touching code. Responsive design is essential; the shop has to feel just as natural on a phone as it does on a desktop. I’ll supply branding assets, copy, and product images. You’ll handle installation, theme customisation, ...

I need a clear, scalable architecture that can detect and instantly alert on unusual spending patterns in our payment flow. The focus is narrow and well-defined: draw insights from live and historical transaction history, spot deviations from normal customer behavior, and trigger actionable alerts before settlement is completed. Scope of work • Map the entire transaction-processing path and identify points where real-time analytics can be inserted without adding noticeable latency. • Define the data lake or streaming layer that will store raw and enriched transaction history. • Recommend the analytics engine—rules, machine-learning models, or a hybrid—best suited for spotting spending anomalies while remaining extensible to other fraud signals later (for e...

Backend / Full-Stack Engineer (API + Integrations) Looking for a developer who can handle backend systems and properly connect them to the frontend. - Build and maintain backend APIs - Connect backend endpoints to the frontend correctly - Handle integrations (webhooks, external APIs) - Manage deployments and environment variables - Debug issues across frontend ↔ backend ↔ server - Comfortable working with: - GitHub - Netlify - Render - Deliver working features (not partial work) - Can debug issues independently - Clear communication - Moves fast and finishes tasks

I’m building a web platform whose core purpose is letting users trade stocks directly with one another and list their holdings for sale. In addition to stocks, I ultimately want the same peer-to-peer and sales flow to accommodate cryptocurrencies and foreign-exchange pairs, but the stock module is the milestone we’ll start with. Here is what I need delivered: • A secure, browser-based application (front-end + back-end) that allows user registration, KYC hooks, wallet/balance management, and two complementary flows—peer-to-peer trade matching and straightforward sales listings. • An order book or bulletin-board style interface where offers can be posted, searched, accepted, partially filled, or cancelled. • Transaction engine that locks the seller&rsqu...

I need a secure, web-based online-banking portal that feels and behaves like the current Chase Bank interface, yet carries an entirely new brand name and logo. At minimum the system must let me: • move money between internal or external accounts (funds transfer) • view real-time balances for every account I add • browse a searchable, filterable transaction history Beyond those essentials, I also want integrated bill payments, budgeting tools that auto-categorise spending, and an always-visible “Contact Support” area (live chat or ticketing is fine). If a transfer fails, the user should be prompted to contact the bank rather than seeing a generic error. Design fidelity to Chase’s flow and overall UX is important—navigation, dashboard layout, c...

Dancer entertainment private party booking app Scope of work — Build the mobile front-end exactly as described in the link, matching the user flows for browsing entertainers, checking availability and sending booking requests. — Set up the back-end/API so all data (profiles, schedules, messages, payments) syncs reliably in real time. Any secure, scalable stack is fine as long as it aligns with App Store and Play Store policies. — Integrate core app-store essentials: user authentication, push notifications and in-app purchase / payment handling where the brief calls for it. — Implement calendar-based availability and location awareness if you see them specified; if they are not in the brief, leave them modular so we can add them later. — Prepare ever...

I’m building an online “rental boyfriend” platform and need both a full-featured website and companion mobile apps (iOS and Android). The core of the product is simple: visitors browse verified profiles, check availability, and place a booking—nothing more elaborate for now. Here is what I expect as the first release: • Website: responsive front end, secure login, profile pages with photos and bio, a calendar-style availability checker, and a straightforward booking flow that captures the chosen date, time, and basic contact details. • Mobile apps: native or cross-platform (React Native, Flutter, or similar) mirroring the same user-profile and booking experience found on the web. • Shared back end: one database and API powering both channels s...

We are looking for an experienced full-stack development team or freelancer to build a cloud-based Property Management Platform for UK landlords and agents. The system should include web and mobile applications (iOS & Android) with features such as property and tenancy management, maintenance ticketing, compliance tracking (gas, electrical, fire safety), accounting with Making Tax Digital (MTD) integration, and payment processing. Key requirements: * Multi-role system (landlord, tenant, agent, supplier, admin) * Scalable cloud architecture with secure APIs * GDPR-compliant data handling * Integration with payment gateways and HMRC APIs * Mobile apps with offline capabilities for inspections Tech stack is flexible, but experience in SaaS platforms, fintech, or property management sy...

I want a fully-automated bot that connects to the Pocket Option platform, streams the current real-time market feed, and analyses it on the fly to decide when to buy or sell. The end goal is clear: accurate, prompt buy-and-sell signals that I can act on (or have the bot place automatically once we confirm stability). Scope of work • Plug into Pocket Option’s live data stream (WebSocket, REST, or any proven workaround) and keep latency to a minimum. • Build the decision engine: use the real-time price feed plus any technical indicators you recommend—moving averages, RSI, MACD, Bollinger Bands, or a custom model if you feel it improves precision. • Generate both buy and sell signals and push them instantly: on-screen, sound, email, or Telegram. I’m flexi...

We are looking for developers to support an existing Laravel-based platform that is already in production. This is NOT a new project. It is an ongoing system that is being extended, improved, and partially modernized. ### Project Overview The platform consists of: * Admin backend (site management) * User area (users manage their own profiles) * Public frontend We are continuously adding new features and modules. ### Tech Stack * Backend: Laravel (latest version) * Frontend: Tailwind CSS (partly migrating from existing UI), some React * Build: Vite * Storage: Wasabi (S3) * Database: MariaDB ### Tasks You will NOT work on everything. We split tasks into small, clear assignments. Typical tasks include: * Implement UI components using Tailwind * Create or extend simple API endpoints * Fi...

I’m building a complete digital layer for my EV charge-point-operator business in Pune and need a unified solution that runs smoothly on the web, iOS, and Android. The core of the project is a customer-facing platform where users can scan a QR Code or download the app as needed, without creating an account. The app should integrate with Google Maps to locate a charger in real time, reserve a slot, pay seamlessly, and receive live session updates. Key modules I expect to see working end-to-end: • Real-time booking engine tied to charger availability (OCPP compliant data feed) • Integrated payment gateway that supports UPI, cards, and wallets • AI-driven recommendation layer for charger choice and dynamic pricing • Hardware integration to start/stop sessio...

Project only open to Australian Citizens with an ABN. I need a locally-hosted application that is capable of monitoring several dedicated Outlook inboxes, recognises action requests in new emails through a set of predefined templates, and then pushes the parsed data into matching fields in an external system. Core Flow 1. Outlook receives an email → the program checks it against my templates (subject line, body markers, or both). 2. When a template match is found, key values are extracted (e.g. request ID, dates, status, comments). 3. The program connects to the database, locates the relevant record or creates a new one, and writes each value into the correct label/column. Requirements • Must run on Windows Server as a service or scheduled task; no cloud components...

I’m building an online “rental boyfriend” platform and need both a full-featured website and companion mobile apps (iOS and Android). The core of the product is simple: visitors browse verified profiles, check availability, and place a booking—nothing more elaborate for now. Here is what I expect as the first release: • Website: responsive front end, secure login, profile pages with photos and bio, a calendar-style availability checker, and a straightforward booking flow that captures the chosen date, time, and basic contact details. • Mobile apps: native or cross-platform (React Native, Flutter, or similar) mirroring the same user-profile and booking experience found on the web. • Shared back end: one database and API powering both channels s...

I need a production-ready solution that plugs into Tally, reads and writes data seamlessly, and removes as much manual bookkeeping effort as possible for a handful of our chartered-accounting clients. The platform must cover three flows: Expense Invoices • Capture PDFs or scanned bills with OCR, push the key fields into structured tables, let a reviewer tweak anything the model is unsure about, then post the clean voucher straight to Tally. The workflow should also fetch existing ledgers from Tally so duplicate supplier names or GSTINs are never created. Sales Invoices • Our clients already raise invoices in their own software; I want those documents pushed into Tally through an API route, not by file upload. A lightweight mapping screen is fine, but the transfer itself mus...

I’m building an online “rental boyfriend” platform and need both a full-featured website and companion mobile apps (iOS and Android). The core of the product is simple: visitors browse verified profiles, check availability, and place a booking—nothing more elaborate for now. Here is what I expect as the first release: • Website: responsive front end, secure login, profile pages with photos and bio, a calendar-style availability checker, and a straightforward booking flow that captures the chosen date, time, and basic contact details. • Mobile apps: native or cross-platform (React Native, Flutter, or similar) mirroring the same user-profile and booking experience found on the web. • Shared back end: one database and API powering both channels s...

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I'm looking for a developer to create an SMS filter extension for iPhone that organizes messages into custom categories based on user-defined keywords. Key Requirements: -Only a Text Filter Extension that can be added to the iPhone native messaging app - Organize SMS into custom categories - Define categories using user-defined keywords - Other OTP priority, auto fill and spam filtering fetures to work as it is. No modifications required. Ideal Skills: - Experience with iOS development - Familiarity with SMS APIs and message handling - Strong understanding of keyword-based filtering systems - Ability to create user-friendly interfaces Please provide examples of similar work done.

I’m building an end-to-end social media agent inside n8n that can analyse trends and competitors with Claude, write engaging captions, generate both images and videos through affordable APIs you’ll help me choose, and finally publish to Facebook, Instagram, LinkedIn and YouTube. Before anything goes live, each drafted post must appear in a Google Sheet where I can mark it Approved/Reject; only approved rows trigger the publish node. Implementation thoughts • n8n will be self-hosted, so the workflow needs to run entirely inside an existing Docker stack. • Trend and competitor data can be fetched via public endpoints or scraping solutions you recommend, then summarised by Claude for quick human review. • For media creation I’m open to any low-cost AP...

I’m building an online “rental boyfriend” platform and need both a full-featured website and companion mobile apps (iOS and Android). The core of the product is simple: visitors browse verified profiles, check availability, and place a booking—nothing more elaborate for now. Here is what I expect as the first release: • Website: responsive front end, secure login, profile pages with photos and bio, a calendar-style availability checker, and a straightforward booking flow that captures the chosen date, time, and basic contact details. • Mobile apps: native or cross-platform (React Native, Flutter, or similar) mirroring the same user-profile and booking experience found on the web. • Shared back end: one database and API powering both channels s...

I need a bulk image API for Gemini that can process images using AI generation based on real photographs. Key Requirements: - Image Processing Operation: AI generation using reference images - Reference Image Type: Real photographs Ideal Skills and Experience: - Experience in developing image processing APIs - Proficiency in AI image generation techniques - Familiarity with handling bulk image operations - Strong background in working with real photographs as reference material

I want to launch a web-based bill-scanning application that uses AI/OCR to read purchase and sales bills. Visitors will be able to upload a photo or PDF, have the system automatically extract all key data (supplier, date, items, totals, taxes), categorise each expense on the spot, and finally export the cleaned-up result to a nicely formatted PDF they can download or share. Core features I need built in: • Automatic data extraction driven by a reliable OCR or vision API • Real-time expense categorisation with editable fields • One-click export of the parsed bill to PDF Everything has to run in the browser—no native iOS or Android builds for now—so a responsive interface and a lightweight back-end API are essential. Please structure the code so I can event...

An Android-only offerwall earning app is required, centred on two offer types: Downloads and Sign-ups. The flow is straightforward—users browse the wall, complete a qualifying download or registration, and are instantly credited inside their wallet. Every conversion must be tracked in real time and reported to an admin dashboard so I can monitor earnings, user activity, and payout liabilities at a glance. Core expectations • Clean material-design interface with user authentication, profile, wallet balance, and history of completed offers. • Seamless integration with leading CPA/affiliate networks that supply download and sign-up campaigns (e.g., OfferToro, AdGem, AdGate or similar; feel free to recommend the most profitable SDKs). • Reliable, server-side postbac...

I’m building an online “rental boyfriend” platform and need both a full-featured website and companion mobile apps (iOS and Android). The core of the product is simple: visitors browse verified profiles, check availability, and place a booking—nothing more elaborate for now. Here is what I expect as the first release: • Website: responsive front end, secure login, profile pages with photos and bio, a calendar-style availability checker, and a straightforward booking flow that captures the chosen date, time, and basic contact details. • Mobile apps: native or cross-platform (React Native, Flutter, or similar) mirroring the same user-profile and booking experience found on the web. • Shared back end: one database and API powering both channels s...

I need a QR code system to manage gift distribution for 5000 employees. The QR code will be scanned to mark the gift as claimed. Requirements: - Generate unique QR codes for each employee. - Ensure scanning marks the gift as claimed. - Automatically registers the employee details in an Excel file. Ideal skills and experience: - Experience in QR code generation - Proficient in Excel - Ability to create a reliable scanning system Need this done ASAP.

I’m building an online “rental boyfriend” platform and need both a full-featured website and companion mobile apps (iOS and Android). The core of the product is simple: visitors browse verified profiles, check availability, and place a booking—nothing more elaborate for now. Here is what I expect as the first release: • Website: responsive front end, secure login, profile pages with photos and bio, a calendar-style availability checker, and a straightforward booking flow that captures the chosen date, time, and basic contact details. • Mobile apps: native or cross-platform (React Native, Flutter, or similar) mirroring the same user-profile and booking experience found on the web. • Shared back end: one database and API powering both channels s...

We need an experienced MuleSoft developer to work on integration solutions connecting various systems and databases. Requirements: • 4+ years of experience with MuleSoft Anypoint Platform/Studio • Strong experience connecting MuleSoft APIs with Azure SQL, Azure Blob, and Snowflake • Proficiency with REST and SOAP web services • Strong working knowledge of JSON and XML data formats • Experience with Agile and waterfall project management methodologies • Excellent problem-solving and analytical skills • Strong communication and presentation abilities • Must be available to work 12pm - 9pm IST, Monday through Friday • Immediate availability or maximum 15-20 days notice period Deliverables: • Design and develop MuleSoft integration solutions ...

We need a WatchGuard AuthPoint specialist to integrate our authentication system with Atlassian Access for Single Sign-On (SSO) and Multi-Factor Authentication (MFA) as we migrate to Atlassian Cloud. Requirements: • Proven experience with WatchGuard AuthPoint implementation and configuration • Extensive knowledge of Atlassian tools, particularly Atlassian Access • Experience integrating SSO and MFA solutions • Strong understanding of security compliance and industry standards • Ability to create comprehensive technical documentation • Excellent communication skills for training IT staff and end-users • WatchGuard and Atlassian certifications preferred Deliverables: • Complete assessment of current authentication infrastructure • Detailed integ...

We need an experienced eCommerce developer to build a complete online store for our clothing and shoes brand, similar in style and functionality to Buck Mason's website. This is a comprehensive project requiring platform selection, custom development, and full eCommerce functionality setup. You'll be responsible for creating a professional, conversion-optimized shopping experience from start to finish. Requirements: • Proven experience with WooCommerce, Shopify, or Magento development • Strong front-end skills (HTML, CSS, JavaScript) and back-end (PHP, MySQL) • Experience customizing eCommerce themes and templates • Payment gateway integration experience (PayPal, Stripe, etc.) • Mobile-first responsive design expertise • SEO knowledge for eCommerce...

I want our Deputy timesheets to flow straight into Xero Payroll so each pay run is created automatically, without any hand-keying or spreadsheet uploads. The priority is simple: once managers approve hours in Deputy, the data should appear in Xero ready for final review and payment. Key points I need covered • Secure connection that pulls approved timesheets from Deputy and pushes them into the correct Xero pay calendar. • Accurate mapping of employees, pay items, penalty rates and leave so every line reconciles with our chart of accounts. • Error handling and logs I can read quickly if a sync fails. • A short setup guide so my in-house admin can reconnect the app if tokens ever expire. Deliverables deputy to xero for payroll 2. One live test showing tim...

I’m building an online “rental boyfriend” platform and need both a full-featured website and companion mobile apps (iOS and Android). The core of the product is simple: visitors browse verified profiles, check availability, and place a booking—nothing more elaborate for now. Here is what I expect as the first release: • Website: responsive front end, secure login, profile pages with photos and bio, a calendar-style availability checker, and a straightforward booking flow that captures the chosen date, time, and basic contact details. • Mobile apps: native or cross-platform (React Native, Flutter, or similar) mirroring the same user-profile and booking experience found on the web. • Shared back end: one database and API powering both channels s...

I’m rolling out a new feature that touches both ends of our stack. On the backend we run Java 21 with Spring Boot micro-services, alongside a small Node.js/Python layer that exchanges events through Kafka. The frontend is split between an older Angular module and a newer React interface. The job is to design and code the complete feature, wiring it cleanly into every affected service and UI surface. You will: • Extend (or create) the relevant Spring Boot endpoints, making sure they publish and consume the right Kafka topics. • Update the Angular dashboard and the React SPA so the user experience is seamless across both frameworks. • Keep code idiomatic, unit-tested, and pushed to our Git repo via pull requests. Acceptance criteria • All API tests pass in ...

I need a complete takeaway POS that installs and runs smoothly on any current Windows machine. The core workflow must cover the full service loop—order processing at the counter or over the phone, real-time inventory management that updates with every ticket, and seamless payment integration for cards, cash, and modern wallets. Beyond this, the build has to support reliable third party interogation so I can plug in external services without rewriting code later. Third-party links are essential from day one: • Delivery services (think aggregators and in-house drivers) • Accounting software for end-of-day exports and live P&L snapshots • Customer loyalty programs so points and promos apply automatically • Route optimisation that pulls current orders, gr...

i have a script i need in aws server + pannel also in aws with auto scalling u need close our old instance and create new u need to test every thing admin pannel user pannel agent pannel meta api campagin and etc what all feature is there

NEW ZEALAND FREELANCERS ONLY I want to launch an interactive planning tool that works seamlessly in any browser as well as on iOS and Android. A guided flow will take each user through a series of text-entry and multiple-choice steps, collect their answers, accept uploaded documents, pull in optional third-party data through APIs, and hand that entire data set to an AI engine (OpenAI or similar) to generate a personalised long-term strategy with clear goals. Once the strategy is produced the system must automatically break it down into annual progress plans, schedule concrete actions, and then track execution. Users will be able to update results over time, and the app will visualise progress versus plan so they can see where they stand and what to adjust. Different permission lev...

I’m building an online “rental boyfriend” platform and need both a full-featured website and companion mobile apps (iOS and Android). The core of the product is simple: visitors browse verified profiles, check availability, and place a booking—nothing more elaborate for now. Here is what I expect as the first release: • Website: responsive front end, secure login, profile pages with photos and bio, a calendar-style availability checker, and a straightforward booking flow that captures the chosen date, time, and basic contact details. • Mobile apps: native or cross-platform (React Native, Flutter, or similar) mirroring the same user-profile and booking experience found on the web. • Shared back end: one database and API powering both channels s...

I’m building an online “rental boyfriend” platform and need both a full-featured website and companion mobile apps (iOS and Android). The core of the product is simple: visitors browse verified profiles, check availability, and place a booking—nothing more elaborate for now. Here is what I expect as the first release: • Website: responsive front end, secure login, profile pages with photos and bio, a calendar-style availability checker, and a straightforward booking flow that captures the chosen date, time, and basic contact details. • Mobile apps: native or cross-platform (React Native, Flutter, or similar) mirroring the same user-profile and booking experience found on the web. • Shared back end: one database and API powering both channels s...

(Low‑Budget, Long‑Term Engagement) Full‑Stack Development Team Needed — 8‑Platform SaaS Ecosystem Build (Agwa Ecosystem) Project Overview We are hiring a long‑term, stability‑focused full‑stack development team to build the Agwa Ecosystem — a unified suite of eight interconnected SaaS platforms spanning: global commerce workforce automation homecare operations travel & hospitality rideshare/logistics professional networking digital connectivity fintech & payments This is not a one‑off app build. This is a multi‑year ecosystem project with: shared authentication (Agwa Auth) unified payment engine (Agwa Pay) cross‑platform data flows centralized messaging + analytics consistent UI/UX across all eight platforms The Agwa Ecosystem is founded by Agwa Odola (Li...

I’m building an online “rental boyfriend” platform and need both a full-featured website and companion mobile apps (iOS and Android). The core of the product is simple: visitors browse verified profiles, check availability, and place a booking—nothing more elaborate for now. Here is what I expect as the first release: • Website: responsive front end, secure login, profile pages with photos and bio, a calendar-style availability checker, and a straightforward booking flow that captures the chosen date, time, and basic contact details. • Mobile apps: native or cross-platform (React Native, Flutter, or similar) mirroring the same user-profile and booking experience found on the web. • Shared back end: one database and API powering both channels s...

I’m ready to launch a fully branded online casino and need a turnkey white-label solution focused exclusively on slot content. The platform must let me set and later fine-tune RTP on a per-game basis rather than being locked to fixed percentages; per-segment control is nice to have down the road, but right now my priority is granular, game-by-game adjustment. Core integrations should start with Pragmatic, EGT and Amuset titles, with room to bolt on additional studios as the library grows. I expect the package to cover everything from the game API and player wallet to reporting, KYC hooks and incidentally the back-office panel where I handle RTP edits. Please walk me through: • The underlying tech stack and how RTP values are surfaced for real-time edits • The timeline ...

Hi I will share the details with the shortlisted candidates. Thanks

PPV platform built from your spec. Here's what's included across all five navigable pages: Event Landing — Hero with live countdown, 4-tier GBP ticket selector (Standard/Premium/VIP/Early Bird), trust badges (Stripe UK FCA, PCI DSS, UK GDPR, DRM), Apple Pay / Google Pay / Open Banking payment chips, and PECR cookie consent banner. Checkout — Buyer form (name, email, postcode for VAT), Stripe Payment Element mock with card/Apple Pay/Google Pay/Open Banking selector, VAT breakdown (net + 20% VAT + gross), Consumer Rights Act 2015 cooling-off notice, and SCA/3DS2 compliance disclosure. Confirmation — Order success with RS256 JWT token display, VAT invoice download, email resend, and the statutory waiver notice before stream access. Watch Page — Simulated DRM-...

Datos del proyecto 250,00 € – 750,00 € Necesito desarrollar un CRM que combine tres frentes clave en una sola plataforma intuitiva: 1. Gestión completa de clientes y sus historiales. 2. Integración directa con la API de WhatsApp Business para mantener charlas fluidas con cada contacto, registrar interacciones y responder desde el propio panel. que hagan seguimiento a las conversacion cada tiempo estipulado 3. Creación de anuncios en Meta basados en plantillas predefinidas orientadas a Promociones de productos; con unos cuantos clics quiero seleccionar la plantilla, elegir el público y lanzar la campaña. los anuncios sera de personas hablando ofreciendo los servcios lo mas real posible Quiero que la capa de inteligencia artificial ayude a...

1- Update application calls should have zero delay so that calls go at full speed. 2- Latency is very important — locally it's 250-300ms, so after deploying on AWS it should be minimum 200ms. So delay = 0 and latency should be low so calls hit fast. 3- We need to pick jobs, and for that we need to eliminate 429, 403, and 504 errors. Why does 429 come? Because we reuse the same token too fast. 403 comes when multiple calls hit from the same IP or combination calls hit together. 504 doesn't come that often, so for that we can keep a retry mechanism. 4- To eliminate 429, we need to use multiple tokens, because a job will only be picked when calls go without even a single 429, with latency 200-250ms and delay 0. 5- For that, we need to do the following: Enter one combination of...

I’m setting up a dedicated platform that streamlines end-to-end supply chain operations—everything from order intake to final delivery—so I need a developer who can own the entire build of both the back-end software and its companion mobile app. Core objectives • Design a central dashboard that gives real-time visibility into inventory, purchase orders, and carrier status. • Develop native apps (iOS and Android) for on-floor staff to scan, update, and confirm movements on the go. • Implement role-based access, automated alerts, and API hooks so the system can sync with existing ERPs and carrier systems. Tech preferences I’m flexible on stack, but experience with cloud-first architecture (AWS or GCP), microservices, React/Angular for web,...

Job Description We are looking for a Senior Technical Lead / Architect Developer to help audit, improve, and lead the technical development of our international automotive marketplace platform. Our company exports used cars from Japan to customers worldwide. Our website currently contains 100,000+ vehicle listings and integrates with Japanese vehicle auctions and dealer inventory feeds. This role is ideal for an experienced engineer who can both design system architecture and actively contribute to coding. You will work directly with the business owner and help guide future development of the platform. About Our Platform Our system includes two main components: 1. Public Website (SEO Marketplace) Used by international customers to: browse fixed-price vehicle inventory search and f...

Build a global B2B marketplace platform similar to Tradewheel (), designed to connect buyers and suppliers across multiple industries with a strong focus on lead generation, supplier discovery, and wholesale trade. The system should support two main user roles (buyers and suppliers), where suppliers create detailed company profiles and upload product listings (including images, specifications, MOQ, pricing ranges, and categories), while buyers can search, filter, and browse these listings using advanced filters (category, country, price, supplier type). The platform must include a buying leads (RFQ) module, where buyers post sourcing requests with details such as product specifications, quantity, target price, and preferred supplier location, and suppliers can search, view, and respond to...

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