Express JS Jobs

Fix & Improve Existing NestJS + PostgreSQL + Redis + React Native Project Hello I’m looking for an experienced full-stack developer to help me fix, refactor, and improve my existing project built with NestJS, PostgreSQL, Redis, and React Native. The project is already developed, but it currently has bugs, unfinished logic, and stability issues. I need someone who can understand existing code, fix problems, and make the system stable and production-ready. Tech Stack: Backend: NestJS Database: PostgreSQL Caching / Queue: Redis Mobile App: React Native API: REST API Tasks: Review and analyze existing NestJS backend Fix bugs and logical issues Improve code structure and performance Fix database-related issues (PostgreSQL) Fix and optimize Redis usage (cache / queue / se...

I already run a live Apify actor that handles several internal automation tasks. It is stable and well-structured, but I now need to branch into brand-new automation flows focused on data collection and processing. Here is what I need from you: • Analyse the current codebase (Node.js + Apify SDK) so your additions slot in without breaking the existing automation tasks. • Design and build one or more new actors, or extend the current actor, to fetch data from targeted sources, normalise it, and store the output in a dataset or key-value store of my choice. • Keep the solution configurable through ENV variables or an input schema, so non-developers on my team can tweak URLs, pagination, scheduling, and output format. • Provide clear, inline comments and a short...

Project Overview Demo of project we would like to use as example provided below. We are seeking an experienced developer to build a low-latency, real-time stock screener using the QuoteMedia API. The screener will monitor all actively traded U.S. stocks and display key metrics with updates occurring every second. The ideal candidate should have prior experience building financial data tools, stock scanners, or trading platforms and be comfortable working with high-frequency data updates. Core Requirements Data Source QuoteMedia API will be used as the primary data provider. The system must pull and maintain a live list of all U.S. equities. Required Metrics For each stock, the screener must calculate and display: Current price Volume Relative volume (daily) Relative volume (5-m...

I need help finishing a React-based e-commerce web application within the next seven days. The design files and API documentation are ready; what’s left is turning them into a polished, functional front-end. Here’s the scope you’ll tackle during the one-week sprint: • Wire the React components to the existing REST endpoints • Implement routing and state management so pages load quickly and data stays in sync • Hook up the product listing and search views, the cart flow, checkout, and basic user sign-in/out • Apply the provided styles and ensure the layout remains responsive down to mobile screens • Hand over clean, well-commented code in a Git repo as the final deliverable I’m looking for someone comfortable with React Router, Con...

I run the software division of a growing technology company in خميس مشيط, المملكة العربية السعودية, and we are expanding our in-house engineering team. The immediate need is for highly experienced programmers from India, Pakistan, Bangladesh, or Sri Lanka who can relocate and work onsite with us on a full-time basis. The work spans end-to-end product development: planning features with our product managers, writing clean and well-documented code, performing peer reviews, and shipping stable releases on a regular sprint cycle. We handle both web and mobile solutions, so a strong command of at least one modern back-end language (Java, Python, Node.js) and a front-end framework (React, Angular, or Vue) is essential. Familiarity with RESTful API design, Git-based workflows, and cloud deployme...

I run a neighbourhood butcher shop and need a mobile-first site that feels modern and clean. Its main job is to tell visitors who we are, show them today’s cuts, then let them tap a single WhatsApp button to place an order—no payment gateway, no checkout flow. The launch version will include: • Home – our story, opening hours, map and a fixed “Order on WhatsApp” call-to-action • Products – a simple photo grid with name, price / kg and a deep link that opens WhatsApp pre-filled with the chosen product Performance and SEO matter: please build with semantic HTML5, lightweight CSS, optimized images, proper meta tags, Open Graph and basic Product schema so we rank in local searches. A fast, responsive experience from 360 px up to desktop is non-...

We are seeking an experienced development vendor to build a production-grade web automation and data collection platform. This is a fixed-price project with a defined scope and an expected delivery timeline of 8–12 weeks. The system will include: 1. Browser automation modules using persistent profiles 2. Scheduler/orchestration engine 3. Structured data collection and storage 4. Deep data capture workflows 5. Administrative frontend for configuration and monitoring 6. AWS deployment (EC2-based) 7. Logging, concurrency handling, and error management Detailed specifications, BRDs, and proof-of-concept scripts will be provided to shortlisted vendors after NDA. Tech expectations: 1. Node.js / TypeScript 2. Playwright or Puppeteer 3. MySQL/PostgreSQL 4. React frontend 5. AWS deployment...

My team needs a seasoned full-stack developer to step in as a consultant who can transfer knowledge rather than write code. I’m specifically looking for someone confident across frontend, backend, and database layers who can translate that depth into clear, structured technical training sessions. Your core mission is to design and deliver training that sharpens our developers’ practical skills. Expect to break down real project scenarios, walk through architectural decisions, explain code quality best practices, and answer ad-hoc questions as they come up. We work mostly with JavaScript/TypeScript, React, Node.js, and PostgreSQL, so fluency in these (or closely related stacks) will help you connect quickly with the team. Deliverables • A short training plan outlining top...

I have a working prototype of a messaging layer that sits directly on top of Gmail. The backend (Go micro-services on GCP, MongoDB Atlas) is solid enough for now, but the React frontend needs love before I can call the product “production-ready.” Here’s where I need you to focus: - UI/UX problems • Layout and design • User interactions - Performance issues Your first task is to audit the existing React 18 codebase, isolate the pain points above, propose fixes, then implement them. I want the interface to feel native inside Gmail—clean, intuitive, and fast, with bundle size and render times kept in check. Tech context you’ll touch: React 18 with hooks and Context API, Go services served via Cloud Run, MongoDB Atlas, GitHub for version ...

I’m building a full-featured learning management system dedicated to educational coursework and want it delivered as a modern, responsive web application. The platform must let students stream video lectures seamlessly and take interactive quizzes that record their scores instantly. Instructors should be able to upload or embed new videos, create question banks, and track individual or class-wide progress. Admins will oversee user management, course catalogs, enrolment rules, and overall site configuration from a secure dashboard. Core expectations • Role-based access: distinct dashboards and permissions for students, instructors, and admins • Course builder: upload videos, arrange modules, attach quizzes, set prerequisites, and schedule release dates • Quiz eng...

I am looking to build a cutting-edge online casino website featuring progressive jackpot slot games and incorporating cryptocurrency transactions. Here are my requirements: - Implement a variety of exciting and engaging slot variants with a focus on progressive jackpot slot machines. - The website should be designed to support cryptocurrency transactions, offering an innovative and secure way for users to enjoy their gaming experience. An ideal candidate should: - Have experience developing betting websites, particularly online casinos. - Show a strong understanding and knowledge of integrating cryptocurrency payments. - Be experienced in designing engaging and successful slot machine games, specifically progressive jackpot slots.