Desarrollo Backend Jobs

Necesito construir desde cero una plataforma web tipo marketplace dedicada exclusivamente a la venta de repuestos para autos y camionetas particulares. El objetivo es que distintos vendedores puedan publicar y gestionar sus propios productos mientras los compradores disfrutan de una experiencia de búsqueda sencilla y un proceso de compra seguro. Alcance funcional • Registro e inicio de sesión diferenciados para compradores y vendedores, con verificación por correo electrónico para garantizar cuentas legítimas. • Panel de vendedor intuitivo donde se pueda: – crear publicaciones con título, descripción, precio, stock, fotos, categoría y compatibilidad (marca, modelo, rango de años); – editar o pau...

Buscamos un Tech lead Java o desarrollador Java senior para liderar el backend de una plataforma e-commerce. No buscamos años en el CV — buscamos a alguien que tome decisiones técnicas con criterio propio y que haya resuelto problemas reales de escala. Lo que harás: • Diseñar y desarrollar microservicios con Java 21 y Spring Boot • Definir la arquitectura de módulos clave: catálogo, carrito, pagos, inventario • Tomar decisiones de diseño y defenderlas con argumentos técnicos • Revisar código y ser referente técnico del equipo Stack: • Java 21 (requerido — Virtual Threads, Records, Pattern Matching) • Spring Boot 3.x / Spring Security • Microservicios y APIs RESTful &...

Necesito desarrollar una aplicación web optimizada para Android cuyo objetivo principal sea la gestión de tareas. Quiero que el usuario pueda crear, editar, marcar como completada o eliminar una tarea desde su teléfono sin instalar nada desde la Play Store; bastará con abrir el navegador o anclar la app a la pantalla de inicio. Busco, por tanto, una solución tipo PWA o similar que: • cargue rápidamente y se adapte bien a distintos tamaños de pantalla Android; • funcione con conexión limitada (caché básica u offline-first); • incluya autenticación de usuarios y sincronización en la nube para mantener la lista actualizada entre dispositivos. Me interesa un diseño limpio, intuitiv...

Busco desarrollar una plataforma web que permita a los usuarios publicar y buscar trabajos freelance, de forma similar a Freelancer. Alcance principal • Módulo de publicación y búsqueda de proyectos freelance con filtros básicos. • Sistema de mensajería interno para que clientes y profesionales conversen sin salir del sitio. • Sistema de calificación y reseñas tras la finalización del trabajo, visible en los perfiles. • Integración de métodos de pago seguros (escrow o pasarela equivalente) para proteger a ambas partes. Requisitos técnicos y de entrega 1. Propuesta de arquitectura (frontend, backend, base de datos) y stack sugerido. 2. MVP funcional que cubra los puntos anterio...

I’ve brought my SaaS web application right up to the finish line. Before launch, I want a fresh set of expert eyes to run through three key areas—overall code quality, end-to-end functionality, and the user interface—and then build out a few targeted reporting-tool features that will give customers deeper insights. Here’s what I need from you: • A concise yet thorough review of the existing codebase, flagging anything that could be refactored for readability, security, or performance. Check up for api not properly workings Real time workings issue • Functional testing that mimics real-world user flows to confirm all core journeys fire without glitches. • UI/UX feedback with quick fixes applied where polish is missing or visual consistency slip...

I’m ready to launch an online house-help service and need a complete mobile solution that works seamlessly on both iOS and Android. The core of the job is to build the customer-facing app and the supporting backend so I can manage the service, workers, and payments from one place. Core functionality • Secure user profiles with email/phone login or social sign-in • Real-time booking and scheduling so customers can pick dates, times, and preferred helpers • Integrated payment processing (card, wallet, or UPI) with automatic receipts and payout tracking Backend requirements I need an admin panel (web-based is fine) where I can: – view and edit user and helper profiles – approve or reschedule bookings – see live payment status and export repor...

I need an exact working clone of my existing SaaS website I own, from ux to api (need reverse api engineer)

I already have a Dubai-focused real-estate website running on a React front-end with a Node.js back-end; it works, but it needs to do more. The next iteration is all about lead generation, so I want to expand the experience and tighten the tech. What I need right now • A brand-new “Developer” section. Each developer gets its own page with three core elements: clear company information, an image-driven project portfolio, and an in-page contact form with strong calls-to-action. These pages should pull data dynamically, be easy for my team to update, and fit seamlessly into the existing site navigation and styling. • Smarter search. Improve the current property search with intuitive filters (price, unit type, location, etc.) that update results instantly and preserv...

We are looking for a full-stack engineer who can fix errors that appear during project builds.

I’m ready to bring a committed junior developer onto the team for a steady 160 remote hours every month. Most of your time will be spent inside our core stack—Python for back-end logic, JavaScript for interactive front-end work, and SQL to keep data flowing smoothly. You’ll clean up legacy code, fix bugs as they surface, push new features during each sprint, and pair-program with senior engineers so every merge meets our standards. An intermediate command of English is essential; we discuss pull requests live and plan the next sprint in real time. If you have up to two years of professional experience, know your way around Git, describe yourself as self-motivated and reliable, and can start right away while overlapping with our core working hours, we should talk. To app...

I want to build a high-quality earning app similar to Bonus Buddy but with more features like games, ads, and advanced reward system. Required Features: Earning: - Offerwall Integration (CPX, AdGate, OfferToro) - Watch Ads & Earn (AdMob Rewarded Ads) - Daily Login Bonus - Referral System (multi-level optional) Games: - Spin Wheel (daily) - Scratch Card - Quiz Game - Simple Mini Games (HTML5) Wallet: - Coins system (convert to INR) - Withdraw (UPI, Paytm) - Transaction history Admin Panel: - Manage users - Control rewards & coins - Withdraw approval - Offerwall API setup - Ads settings control - Referral settings - Game reward control Extra: - Push Notifications - Anti-fraud protection - Fast & secure system - Clean modern UI Tech Stack Preferred: - Flutter App - Backend:...

I need a developer who has already worked with the WhatsApp Business Cloud API to hook it into our own in-house CRM via webhooks. The goal is straightforward: once the integration is live I must be able to send and receive WhatsApp messages from inside the CRM using our Meta-approved business number. No template catalog or personalised templating is required; we’ll start with plain text messaging and build on that later. You will be expected to: • Build the webhook endpoints that capture incoming messages and push them into our existing messaging module. • Create the outbound message flow so agents can reply or start conversations directly from any contact record. • Handle authentication with Meta, including token refresh, and document the required environment var...

Here is the complete list of requirements and changes needed for the VOLA app setup: Script Link - ​Rebranding (App Identity): > * Change the App Name to my official name. ​Replace default logos with my official App Logo, Splash Screen, and Icons. ​Change the Package Name/Bundle ID for Play Store and App Store. ​Full Backend & Server Setup: > * Complete configuration and deployment of the backend source code on my server/hosting. ​Database setup and connection with the app. ​Admin Panel Deployment: > * Complete setup of the Admin Panel so I can manage users, voice rooms, reports, and app settings. ​Third-Party API & SDK Integrations: > * Agora SDK Setup: Complete integration for smooth voice chat party rooms. ​PhonePe Gateway: Integration of PhonePe...

I am ready to commission a ground-up, custom-built e-commerce ecosystem that includes every interface my business needs to operate smoothly: • Customer website
• Customer mobile app
• Admin panel
• Seller panel
• Seller mobile app Customer-facing side The app and website must feel identical in capability. Shoppers should be able to search and filter products easily, complete purchases with in-app payments, and track every order in real time. Back-office side Inside the admin panel I need full user management, streamlined order management, and clear analytics/reporting so I can follow performance without jumping between tools. Sellers will have their own dedicated panel and companion app to upload products, manage stock, and view their orders and earnings. A...

I am looking for a skilled and reliable full-stack developer to collaborate on an ongoing web-based project. This is not a one-off task — I’m seeking someone interested in long-term collaboration, ideally working closely as a technical partner as the product grows. The project involves building and scaling a modern web application with a focus on clean architecture, performance, and maintainability. The exact domain can be discussed in detail with shortlisted candidates, but it is centered around building a scalable platform with potential for long-term growth. What You’ll Be Doing Building and improving frontend and backend features Designing scalable and maintainable system architecture Integrating APIs and third-party services as needed Writing clean, production-read...

I am ready to commission a ground-up, custom-built e-commerce ecosystem that includes every interface my business needs to operate smoothly: • Customer website
• Customer mobile app
• Admin panel
• Seller panel
• Seller mobile app Customer-facing side The app and website must feel identical in capability. Shoppers should be able to search and filter products easily, complete purchases with in-app payments, and track every order in real time. Back-office side Inside the admin panel I need full user management, streamlined order management, and clear analytics/reporting so I can follow performance without jumping between tools. Sellers will have their own dedicated panel and companion app to upload products, manage stock, and view their orders and earnings. A...

I need a clean, professional business website whose core purpose is to serve existing clients. The site’s main feature will be a fully-functional support ticket system that lets customers open, track and update their issues at any time. Beyond the ticket workflow, I still expect all the fundamentals of a solid corporate site—responsive design, fast loading, straightforward navigation and an intuitive backend so my team can update pages without coding. I am open to your preferred stack; if you routinely build with WordPress plus a Help Scout or Zendesk plugin, or perhaps a Laravel/Vue custom build, let me know why your choice is best for reliability and ease of maintenance. Key deliverables • Branded business website built to current accessibility and security standar...

Kailangan kong mailagay ang Google ReCaptcha sa aking existing na login form para maprotektahan ito laban sa spam at automated bots. Naka-set up na ang front-end at back-end ng site; ang kulang na lang ay ang tamang pag-encode, pag-display, at pag-validate ng ReCaptcha bago payagang mag-sign-in ang user. Ano ang inaasahan ko: • I-configure ang ReCaptcha keys sa server at sa client side. • Idagdag ang widget sa login page at siguruhing maayos itong maglo-load sa lahat ng major browsers. • I-update ang server-side authentication flow para suriin muna ang ReCaptcha token bago iproseso ang username at password. • Magbigay ng maikling dokumentasyon o README na naglalarawan kung saan inilagay ang code, paano palitan ang site/secret keys, at paano i-toggle ang feature k...

I am launching a complete ride-hailing ecosystem that mirrors Ola’s core experience and adds a few workflow tweaks of my own. The build breaks down into three interconnected products: • Android user app – must handle ride booking, live driver tracking and multiple payment options with the smoothness riders already expect from market leaders. • Android driver app – alongside standard ride-accept, navigation and history screens, the critical function is an automatic wallet deduction the moment a job is allotted, plus detailed earnings and trip analytics. • Web-based admin panel – a clean browser interface where I can monitor trips, manage drivers / users, adjust commission settings and inspect financial logs in real time. Both apps should talk...

I’m putting together a green-field, multi-interface fintech platform and need a team that can own the build from backend foundations to polished user experiences. Scope in a nutshell • Five user-facing touch-points – Borrower mobile app (iOS / Android) – Lender mobile app (iOS / Android) – Admin web dashboard – Third-party partner web dashboard – Field-agent Android app Each surface will cater to Customers, Admins, Field Agents, and selected Third-Party Partners as appropriate. Core capabilities we must deliver • Unified backend API with role-based permissions and a complete audit trail on every call. • Real-time credit-scoring engine that ingests payment data and instantly updates borrower profiles. &bu...

I’m building a two-sided marketplace that lets people quickly find and book sports-and-fitness professionals—think personal trainers, yoga teachers, coaches, physiotherapists, and similar specialists—directly from their phones. Scope of the build • Native coverage for both iOS and Android from day one. • Social-media sign-up only (Google, Facebook, Apple). No email/OTP flows needed right now. • Real-time location so users can browse or filter providers who are physically nearby. • A booking workflow that shows each provider’s live availability, confirms the slot, and pushes reminders. • In-app payments with secure card vaulting and automated payout to the provider after service completion. • A lightweight provider dashboa...

Google Workspace Expert Needed: System Optimization, Workflow Automation & UI Polish (2-Day Turnaround) Project Overview We have a management portal built using the Google Workspace ecosystem (Google Sites, Forms, Sheets, Drive, and Apps Script) that is roughly 85% complete. We are looking for a skilled developer to step in, audit the current setup, troubleshoot a few minor workflow bottlenecks, and bring the system to 100% functionality. This is an optimization, refinement, and polishing project—the foundational architecture is already built. Key Responsibilities & Scope Workflow Automation: Finalize and smooth out automated backend processes for staff onboarding, resident admissions, document uploads, and time-tracking systems. System Troubleshooting: Identify and resolve m...

Saya ingin membangun pemindai saham berbasis web yang langsung terhubung ke API Fyers untuk menampilkan data real-time NSE Cash dan Futures. Aplikasi ini harus: • Berjalan sepenuhnya di web dengan back-end Python / Django. • Memindai setidaknya kondisi “Volume tinggi” secara live dan mengizinkan saya menambah kondisi lain—misalnya moving average crossover atau price breakout—melalui menu pengaturan, tanpa menyentuh kode. • Memiliki antarmuka ringan dan responsif yang memuat daftar simbol, kolom hasil, serta filter kustom yang bisa saya atur dan simpan. • Mengutamakan kecepatan refresh serta stabilitas, karena akan saya pakai untuk trading intraday. • Menyajikan dokumentasi singkat cara deploy (virtualenv, dependensi, setting kunci A...

I’m implementing a direct-to-airline NDC connection focused solely on the booking flow. No GDS layer or IATA NDC API involved; you will be working with the airline’s own direct NDC API endpoints. We are seeking a skilled freelancer to integrate Direct Airline NDC into a OTA website that requires development. The project involves setting up new API's connection, mapping airline content, and ensuring seamless booking functionality with approx. 4 Airlines to start with. The ideal candidate must have experience with Airline NDC integration and/or a strong understanding of travel industry technology OTA. This is a long term engagement possibly on a permanent basis in the future. Note: I would like to support an individual developer, companies/organisations need not to appl...

I’m ready to add Google Maps features to my WooCommerce site and need a developer who can set up a clean, reliable API integration from scratch. The goal is to enhance the shopping experience with location–aware tools such as a store-finder, distance or delivery-fee calculations, and route visualisation, while keeping the solution lightweight and fully compatible with my current theme and plugins. Here’s what I expect when the job is done: • A custom plugin / code snippet that drops seamlessly into my existing WooCommerce setup, no core edits. • A simple admin panel or settings page where I can toggle features (store locator, distance display at checkout, route map, etc.) and paste the API key. • Front-end output that inherits my site’s styli...

Planuję uruchomić w pełni funkcjonalne kasyno online i szukam specjalisty, który od A do Z przygotuje: • responsywną stronę główną i lobby gier, • bazę danych obsługującą użytkowników, stany kont oraz historię rozgrywek, • bezpieczny system rejestracji i logowania (szyfrowane hasła, 2-FA mile widziane), • integrację gier: Automaty, Poker, Ruletka, instant payment games oraz Zakłady sportowe, • moduł płatności natychmiastowych (karty, e-portfele, kryptowaluty), • panel administracyjny do monitorowania transakcji, bonusów i limitów gracza, • skalowalną infrastrukturę z myślą o wysokim ruchu i szybkim ładowaniu. Oczekuję kodu front- i back-end (preferuję React lub Vue + Node.js, lecz możliwe są inne sprawdzone...

PLEASE READ THE ENGLISH AND VIETNAMESE PROJECT DESCRIPTION BELOW BEFORE APPLYING. Loại Hợp Đồng:** Freelancer / Hợp đồng theo giờ / Ứng viên sử dụng tiếng Việt hoặc tiếng Anh Bạn sẽ làm việc trực tiếp cùng một trong những Giám đốc Sản phẩm (Head of Product) giàu kinh nghiệm và am hiểu chuyên môn hàng đầu tại Việt Nam, với khả năng giao tiếp thành thạo bằng cả tiếng Việt và tiếng Anh. ### Về Vai Trò Chúng tôi đang tìm kiếm một **Lập trình viên Full-Stack Freelancer** có động lực cao, khả năng làm việc độc lập và tư duy chủ động để dẫn dắt quá trình phát triển đồng thời **website marketing doanh nghiệp** và **Phiên bản Sả...

I am looking for a skilled and reliable full-stack developer to collaborate on an ongoing web-based project. This is not a one-off task — I’m seeking someone interested in long-term collaboration, ideally working closely as a technical partner as the product grows. The project involves building and scaling a modern web application with a focus on clean architecture, performance, and maintainability. The exact domain can be discussed in detail with shortlisted candidates, but it is centered around building a scalable platform with potential for long-term growth. What You’ll Be Doing Building and improving frontend and backend features Designing scalable and maintainable system architecture Integrating APIs and third-party services as needed Writing clean, production-read...

Travel App – MVP Development Project Brief About the Company We are building a consumer travel platform that helps people discover destinations, make travel decisions faster, build personalised travel plans and get more value from their limited time. Current Stage • Pre-launch • Product specifications and user flows completed • MVP build commencing • Small founder-led team Project Scope The initial MVP covers a complete consumer travel experience built around discovery, planning, and personalisation. At a high level it includes: • Standard user authentication and profile management • Core destination discovery and planning flows • Maps integration • Basic notifications A detailed feature specification and full user flows will be shared with ...

I need a complete e-commerce website that showcases and sells my apparel line through a modern, minimalistic design. The site must feel clean and airy, with plenty of white space so product photos stand out, and slick micro-interactions that make the shopping experience intuitive on mobile and desktop. Core functionality has to include a seamless shopping cart flow, fast product search with filters (size, color, collection), and a section for verified customer reviews on each product page. Secure checkout, inventory management, and basic analytics setup are expected as part of the build. I’ll supply branding assets, imagery, and copy; you handle design, front-end and back-end development, payment gateway integration, and basic SEO readiness. Once live, I need a quick hand-off sessi...

Senior Full-Stack Developer / Agency – Legacy Takeover & Feature Updates for Automotive Marketplace (4 Apps + Web + Backend) Job Description Overview We are looking for a highly experienced, deeply technical Senior Developer or small, elite team to take over maintenance, optimization, and feature development for an established automotive parts marketplace operating in Saudi Arabia. The entire ecosystem was built two years ago by an external agency. We have the complete source code and are looking for a long-term technical partner who excels at reading, auditing, and building upon existing legacy codebases. If you only know how to build apps from scratch, please do not apply. The Ecosystem Structure Customer Facing: 2 Mobile Apps (iOS and Android) + Responsive Website Vendor F...

lá, sou proprietário e desenvolvedor de uma plataforma de delivery de comida caseira e local, totalmente funcional, validada no mercado real e pronta para operação. Estou vendendo esta plataforma pronta para operação. O sistema foi desenvolvido sob medida, utilizando as tecnologias mais modernas do mercado, garantindo um código limpo, rápido e de fácil manutenção.

I am looking for an experienced iOS app developer or development team to help create a food and nutrition-related mobile app for the Apple App Store. I need end-to-end support, including UI/UX design, native iOS development, testing, bug fixing, TestFlight setup, and final App Store submission under my Apple Developer account. The app should be clean, modern, fast, and easy to use. It should be built with a professional iOS design style and should work smoothly on current iPhone models, with possible iPad support as well. The main purpose of the app is to help users access food and nutrition-related information in a simple and organized way. Full details of the concept, exact features, user flow, and database structure will be shared only after a confidentiality agreement/NDA is signed. ...

I’m building a full-cycle management app that lets our tailoring shop run entirely from a phone or tablet. Staff will log every measurement, alteration, delivery and payment directly inside the app, while I— the owner— need a live dashboard that mirrors their activity so I can follow jobs, cash flow and team performance whenever I’m away from the shop. Scope • Native mobile experience for both iOS and Android (web is not required). • Two secure roles: Staff create and update orders; Owner has read-only analytics plus the ability to override or approve payouts. • End-to-end traceability: the system must stamp who did what and when for orders, edits, deliveries and tailor payments, eliminating our paper registers. • Real-time sync so that ...

Meu sistema de leitura inteligente de documentos já está em operação e cobre cerca de 70 % do fluxo: a captura, o OCR e a extração por IA funcionam perfeitamente. Agora preciso concluir a última etapa do projeto para que o resultado chegue de forma limpa e automática ao laboratório Worklab (Criasoft). O que falta entregar: • Estruturar todos os dados extraídos em um payload único em JSON, padronizado e validado. • Criar uma lógica “De/Para” baseada em IA/algoritmo de aprendizado que reconheça cada exame lido e converta para o código que o Worklab aceita, permitindo fácil atualização futura de novos mapeamentos. • Consumir o Webservice/API d...

I need a full-scale online casino platform that I can brand for multiple partners under separate domains. The core build should include a back-office admin panel where I can handle user management, view real-time analytics and financial reports, and process payments securely through major gateways. On the player side, the lobby must launch Slots, Poker and Blackjack titles, plus leave room for quick integration of additional games supplied through third-party APIs. At minimum, users must be able to register, log in and enjoy a seamless experience across desktop and mobile. Deliverables • Responsive player lobby and game pages • Multi-tenant white-label system (individual branding, domains, currency/locale settings) • Admin panel with user management, analytics &a...

I’m ready to move LiveRoutesSA from concept to a usable MVP and need the full Flutter build for Phase 1. The core of this release is a cross-platform (Android and iOS) navigation experience that overlays live road-safety intelligence on normal turn-by-turn guidance. Data & integrations – Bring in three live feeds: government traffic data, community reports and weather services. I’m open to whichever APIs, aggregators or scraping techniques you believe are most reliable for South Africa, as long as usage terms allow commercial deployment. – Combine those feeds through lightweight AI logic (simple weighting, confidence scoring or similar) so the app surfaces only the most relevant events along the active route. User experience – Map screen with curre...

Hi, the required stack is , Tailwind CSS, Prisma/drizzle with Supabase, cloudflare r2 for images and videos storage. The website should include: - Product pages, collection page, cart page, checkout page with smart address dropdown for Philippines province, city and barangay. - Stripe payment integration - Full admin dashboard (orders, metrics, customers, discounts, roles settings and other industry standard features) - Facebook Pixel and Facebook Conversion API (with Latest best practice) - Responsive mobile and desktop design Please send your accomplished projects storefront link and admin dashboard link. I can only choose you if you have accomplished real projects and not just design images and demo videos.

Saya membutuhkan seorang developer backend yang mampu merancang dan mengimplementasikan sistem pelaporan dan analitik yang solid untuk aplikasi kami. Fokus utama ada pada: • Endpoint pelaporan yang mengekstrak, mengolah, dan menyajikan data secara real-time maupun terjadwal. • Modul analitik dasar—mulai dari perhitungan metrik hingga ringkasan tren—yang mudah diperluas. • Dokumentasi teknis singkat berisi skema basis data, diagram alur data, serta panduan build & deploy sehingga tim front-end dapat terhubung tanpa hambatan. Teknologi spesifik saya serahkan kepada Anda sepanjang stack yang dipilih stabil, aman, dan mudah dipelihara (Node.js, Python, Go, atau Java sama-sama diterima). Kode perlu bersih dan terstruktur, dilengkapi komentar seperlunya. Eks...

Hi, I need travel API developer who can help us build flight reservation website and guide us with right tech stack. Please only apply if you have good web dev and travel web dev related knowledge. Thanks!

We are building a sports and chatting app focused on online connecting users with workout partners (hiking, running, etc.). ** NON-NEGOTIABLE FIRST STEP (Please Read Before Applying) To ensure we are a match, we require a small, verifiable proof-of-concept before discussing budget or timeline. You will build a 100% offline Android demo app (no server/API needed) that implements: GPS location collection 2.Real-time route/trail drawing on a map Only candidates whose demo passes our background location stability test will continue developing the formal app. Demo must include source code, build instructions, and a short video demonstrating the background tracking working on locked-screen, background running and battery-saving modes of major Chinese Android devices (Huawei, Xiaomi, OPPO, Vi...

I’m setting up a series of REST services built on Java 17 with Spring Boot and need an experienced backend developer to take ownership of both new features and ongoing maintenance. The core of the work is writing clean, test-covered code that exposes reliable, versioned endpoints, backed by a MySQL data store accessed through JDBC and, where appropriate, JPA/Hibernate. All modules sit in a microservice architecture and are managed through Git, so solid branching and pull-request discipline is essential. While the focus is the backend, it will help if you can speak the same language as our UI team; they primarily work in React and Angular with plenty of vanilla JavaScript, HTML, CSS, Bootstrap—and the occasional PHP snippet for legacy views—so being able to align contract...

I have a ridesharing website built in Laravel and vue.js, and an app built in Flutter They need hundreds of fixes, but they are all very small. A few them are large Budget: CAD$1,500 Must be completed in a month

Need an experienced developer to fix a few issues on an existing React, , and Node.js website. Tasks include bug fixing, troubleshooting, and ensuring everything works properly.

# Full-Stack Website Audit, CMS Development, Security Hardening & Production Deployment ## Project Overview I am looking for an experienced full-stack developer (or small team) to audit, improve, secure, and modernize an existing production website and supporting infrastructure. This is **not a greenfield project**. An existing application, database, content, media assets, and deployment environment are already in place. The goal is to preserve existing functionality and content while improving maintainability, security, administration, deployment, and long-term scalability. The current technology stack includes: * * React * TypeScript * Node.js * PostgreSQL * Docker * Nginx * Linux VPS Equivalent technologies may be proposed if justified. --- ## Existing System The current ...

I'm looking for a skilled developer to create a mobile app and desktop platform for managing recorded data tickets in the field. Must have high quality OCR and ability to work with multiple ticket formats Mobile App (iOS & Android) Features: - Camera integration for ticket capture - Offline mode for fieldwork - Dashboard for managers Desktop Access Functionalities: - View and edit recorded data tickets - Generate and export reports - Admin panel for user management - Compile data for invoicing on Excel Ideal Skills and Experience: - Experience in mobile app development for both iOS and Android - Proficiency in creating user-friendly dashboards - Strong backend development skills for managing data synchronization - Familiarity with Excel and report generation Please provide exa...

We are looking for a Junior Software Engineer (based in the United States) to collaborate with our growing engineering team on real-world production systems and AI-driven applications. About the Role You will work closely with senior engineers and product builders to design, develop, and maintain backend and frontend systems. This role is ideal for someone early in their career who wants hands-on experience in a fast-moving, collaborative environment. Responsibilities Assist in building and maintaining web applications and backend services Collaborate with engineers on feature development and bug fixing Work with APIs, integrations, and cloud-based systems Participate in code reviews and team discussions Help improve system performance, reliability, and scalability Requirements Based i...

I’m ready to turn my rental-focused fintech concept into a working MVP and need someone who can own the backend while still being comfortable wiring up a straightforward front-end flow. The heart of the product is rock-solid data security, well-structured RESTful APIs, and a friction-free user journey that proves the core value quickly. The build centres on: • Secure data handling from day one, following best practices for encryption at rest and in transit. • Clean, well-documented APIs that make future integrations painless. • A simple but polished React/Next (or comparable) interface that lets users complete the key flow without confusion. Because we operate in India’s financial ecosystem, two integrations matter immediately: Account Aggregator (for bank-...

I'm looking for an experienced Android developer to create a marketplace app focused on selling products(Medicines nearly 2000 skus). The app should support payments via Bank Transfer and UPI. Key Requirements: - User-friendly interface for product listings and purchases. - Secure payment integration for Bank Transfer and UPI. - Robust backend to manage user data and transactions. - Integration with out billing software POS . ( On adding purchase,the stock reflects in app) - Ideal Skills and Experience: - Proven experience in Android app development. - Strong background in secure payment integration. - Familiarity with inventory management systems is a plus.

I need an individual who can commit full-time, on an hourly basis, to keep several Node.js projects moving forward. You’ll split your time across three codebases: a browser-focused web app, a companion mobile app served through React Native, and a stand-alone REST/GraphQL API. Your main responsibilities are straightforward yet critical to the business: ship brand-new features, track down and fix bugs as they appear, and continually tune the runtime for speed and stability. I work primarily with plain Node, but if , or any other framework helps you deliver faster, you’re free to bring it into the stack—clean, maintainable code is the only non-negotiable. We’ll collaborate through GitHub, code reviews, and short daily check-ins. I release to production every Frid...