Backend Development Jobs

I have a nearly-finished adult-fiction web application built with Supabase/PostgreSQL, TypeScript, custom API endpoints, RLS-based security, subscription logic and some early AI hooks. The codebase works, but it is not yet production-ready. The area that needs the most attention is integrating new features while ensuring the current foundation is solid. At the same time, there are a few nagging issues—intermittent database errors and occasional API malfunctions—that must be eliminated before we push live. Your task is to step into the existing repository, review the architecture, tighten any loose security rules, clean up the TypeScript services and help me extend functionality in a future-proof way. You should be fully comfortable working on an 18+ platform; the stories ar...

We are looking for an experienced mobile app developer to build a modern, reliable, and user-friendly Weather Reporting App for Android and iOS. Project Overview The app will provide users with accurate real-time weather information along with detailed forecasts based on their current location or selected city. Key Features Current weather conditions Temperature, feels-like temperature, humidity and wind speed Weather forecast for the next 7–10 days Hourly weather forecast Rain/precipitation probability Sunrise and sunset timings Location-based weather detection using GPS Search weather by city/location Multiple saved locations Weather alerts and notifications Clean, modern and responsive UI Weather condition icons/animations API-based live weather data integration Loading, error a...

I’m reaching out from Prime Wave Technologies. We’re currently expanding our remote technology team and looking for developers who are interested in joining us for long-term collaboration. We’re seeking skilled and motivated team members who enjoy working with modern technologies and being part of a collaborative remote environment. We’re currently looking for developers with experience in: • Full-Stack Development • Front-End / Back-End Development • Mobile Application Development • Cloud & API Development • DevOps & Infrastructure Engineering • QA Engineering & Software Testing • AI / Machine Learning (a plus) What we offer: • Flexible remote work environment • Long-term project opportunities • Supp...

I’m building a full-featured chess game for iOS and Android that lets users play in two ways: solo against a strong, adjustable AI and head-to-head through real-time online multiplayer. The core mechanics of classical chess are already defined, so what I need is the complete app: clean, intuitive UI, a reliable chess engine integrated for single-player, and a secure backend that handles matchmaking, friend invites, and ranking for multiplayer. Cross-platform technologies such as Unity, Flutter, or React Native are all acceptable as long as the final experience feels native on both stores. Key deliverables • Fully compiled iOS (.ipa) and Android (.aab) builds ready for TestFlight / Play Console • Source code with clear documentation • Online services set up (l...

Description: Project Overview We are looking for an experienced Full Stack Developer / SaaS Developer / AI Developer or development team to build a scalable, secure, and production-ready SaaS product with Web, Mobile, and AI capabilities. The project involves end-to-end software product development, including a modern web application, mobile application, scalable backend, REST APIs, database architecture, AI/ML integrations, authentication, subscriptions, cloud deployment, and third-party API integrations. We are looking for someone who can take the product from concept and architecture through development, testing, deployment, and production launch. Scope of Work Web Application * Develop a modern, responsive SaaS web application * Build user dashboards and management panels * Impl...

FinTech Mobile App — Development Project Overview We are looking for an experienced mobile app developer or small development team to help us build the of a new FinTech product. This is a serious startup project, and we are looking for someone who can work carefully with financial functionality, security, APIs, and a modern mobile UI. Important: Due to the confidential nature of the product, the public project description intentionally does not disclose the complete business model or proprietary financial mechanism. Detailed product specifications will be shared with the selected developer after an NDA/confidentiality agreement. What We Need We need a developer to build the technical foundation for a modern financial mobile application, including: * Modern mobile UI/UX * User ...

We are looking for a payment integration expert to implement a secure payment system within a custom Laravel checkout flow, without using a fully hosted payment page. The solution must ensure PCI DSS compliance (SAQ A) by keeping all card data out of our servers and application. It should also support: - Strong Customer Authentication (3D Secure 2) - Trial payments - Subscriptions and recurring billing - Secure signed webhooks for payment event synchronization This integration involves Paysagi, a merchant of record payment gateway. The goal is to deliver a robust, compliant, and scalable integration while maintaining a smooth user experience in a fully custom checkout.

*WE’RE HIRING | IT / FULL-STACK PRODUCT & SYSTEMS DEVELOPER* *Location:* Bangalore – Work From Office *Freelancer:* Work From Home *Employment Type:* Full-Time / Freelancer *Experience:* 4+ Years *Reporting To:* Management / CEO We are looking for an experienced and hands-on *IT / Full-Stack Product & Systems Developer* who can take ownership of building, implementing, integrating, and managing our company’s digital technology ecosystem. What You’ll Work On: *Website Development*: Develop and maintain a responsive, secure, scalable website with lead forms, CRM, analytics, APIs, SEO, and performance optimization. *CRM Development & Implementation*: Develop/customize CRM solutions using platforms such as Zoho, Salesforce, or HubSpot. Manage lead ...

Software Engineer Experience Required: 5-7 Years Location :- Ahmedabad (On site) Working days - 5.5 Weekday (Half day Saturday) Contract Role - Initially 3 to 6 Month. Based on performance it will extend. Role Summary: Designs, develops, tests, and enhances custom applications, APIs, workflows, and integration components while ensuring adherence to coding standards, quality requirements, and security guidelines. Skills Required: Full-stack application development API design and development Database design and management Unit testing and code quality practices Secure coding principles CI/CD collaboration Technical documentation Integration development

​Hi everyone, ​I am looking to develop a custom Audio Voice Chat Party App (Audio streaming only, NO video required) for entertainment purposes. ​Key Requirements & Core Features: ​Focus: Audio Voice Rooms & Entertainment (Similar to StarMaker/Yalla Ludo audio rooms). ​In-App Economy: Simple user coin-purchasing system (In-App Purchases) & virtual gifting/sending mechanism between users. ​Streamlined UI: Purely user-to-user engagement. NO host earning/withdrawal systems, and NO agency/agent management portals. ​Scope: Complete end-to-end development (UI/UX Design, Frontend, Backend, Admin Panel, and App Store/Play Store deployment). ​Note for Developers/Sellers: If you already have a ready-made script, source code, for an Audio Voice Party app that matches these requirements an...

Hi, I have a requirement as detailed below For frontend, I will clone a medical tourism website I want to integrate backend on firebase/etc. Frontend is a website for medical tourism that allows international patients to submit their medical records and book a doctor consultation call slot via google meet (and allows the Indian patients to only book a doctor consultation and attend it via google meet ending at receiving the doctor's prescription/ consultation note) and Basis medical procedure in consultation note, International patient is recommended medical packages from onboarded hospitals (details cost and other details). The data displayed on customer/ patient portal will either be static or flow dynamically from separate modules of doctor (call time slot, prescription/ consult...

Our current back-end buries everyday tasks under layers of menus our non-technical teammates will never touch. I want the admin area pared down so an office manager can log in, see only what matters, and finish updates in minutes—not wander through twenty irrelevant options. Here’s the experience I have in mind: • A custom landing page that surfaces the three or four actions our team carries out most often, displayed as large, friendly buttons. • Role-based visibility rules so the office manager, content editor, and sales team each see only the menus they truly need. • Lean editing screens: unused meta boxes and fields gone, plain-language labels in place of WordPress jargon. • Quick-access links tucked into the toolbar for those repeat jobs. &bull...

Looking for a Senior Full-Stack Developer (or small team) to build from scratch a two-sided marketplace platform connecting clients/buyers with professionals/sellers. The platform will charge a commission and needs to handle the following flows legally and automatically: Required Features • Client payments (Visa/Mastercard, Bizum and other payment methods) • Automatic payment split (platform commission + payout to the professional) • Wallets / payment accounts for professionals • Payouts to bank accounts, wallets or cards • KYC / identity verification system (Spain, Europe and LATAM: Colombia, Brazil, Argentina, etc.) • Possible issuance of virtual or physical cards • Commission management, VAT and basic reporting What I need (starting from zero) 1. ...

I am looking for a development partner to deliver a specific, well-defined feature (detailed in Sections 4–6), and ongoing relationship covering infrastructure maintenance and continued application development. This document is both a technical brief and a request for proposal. After reading it, we need you to come back to us with two things: confirmation that you (or your team) have the skills and experience to deliver this work, and a price and timeline for doing so. About This Engagement The product is a property monitoring platform: sensors installed in a property (temperature, humidity) feed a data pipeline that assesses damp, mould, and thermal risk, and generates reports for landlords and tenants. The work described here adds a new UI-driven workflow for triggering those re...

TECHNICAL PROJECT DESCRIPTION HuntApp will be a mobile application for iOS and Android, accompanied by a web-based administration panel. The main function is: Search users → Apply filters → Request help → Accept request → Open private chat. 1. Registration and Login The system must allow: * Registration with email and password. * Login with Google. * Login with Apple. * Email verification. * Password recovery. * Acceptance of the Terms & Conditions and Privacy Policy. * Mandatory verification that the user is 18 years old or older. 2. Profile Creation and Management Each user will have a profile containing: * Name or nickname. * Date of birth. * Automatically calculated age. * Gender. * Country. * City. * Social media platforms they use. * Approximate lengt...

I want to turn my idea into a fully functioning mobile application. The primary goal is to create a digital platform, so I’m looking for someone who can guide the entire process—from scoping the concept to getting the app live. Here’s what I need: • A short discovery session to fine-tune the requirements, user flow, and technical approach. • Wireframes and clean UI/UX mock-ups that translate well to both iOS and Android. • Native or cross-platform development, along with the back-end APIs, database, and an admin panel for basic content management. • Thorough testing, bug-fixing, and support for deployment to the App Store and Google Play. If you have a solid track record in mobile app development and can handle design, coding, and launch, I&r...

I have already secured my own domain and a specific design/theme that I want to follow. I now need a developer who can turn those mock-ups into a fully operational ecommerce website on that domain. Core functionality I must have: • User registration and secure login • Payment gateway integration • Product reviews and ratings • “Request a quotation” option for selected items • AI-powered chatbot for instant answers • Live chat that connects visitors with a sales representative • Delivery-progress tracking for customers • Standard add-to-cart and checkout flow • Search and browse by category The finished site should be responsive, fast, SEO-friendly, and simple for me to update (products, prices, and content). I&rsquo...

I’m planning a tailor-made solution that will evolve as the concept takes shape. At this stage the exact feature set is still fluid, so your ability to switch between front-end and back-end tasks, recommend the best tech stack, and iterate quickly will be key. Here’s what the collaboration will look like: • We start with a brief discovery call where I walk you through the current vision, user flows, and any constraints. • You propose an architecture that strikes the right balance between scalability, maintainability, and delivery speed. • Work proceeds in short, testable milestones. I review each build, give feedback, and we adjust scope or priorities as needed. • Clean, well-commented code is committed to a shared repo; deployments are automated ...

Highly experienced NEXT JS and PHP developer needed. The role is to fix the existing bugs in the application and also update few modules. You must meet the following conditions: 1. must be an independent freelancer 2. Must be availble for meeting on a daily basis 3. Must have atleasrt 10 solid years in developing in PHP and 8 years into be fluent in English

I’m building a PHP + React gaming platform and I’m ready to expand it with live game feeds. The first milestone is to wire in the Spribe Zilli Evolution API so that every casino title in their catalogue plays flawlessly on my site—secure wallet hand-offs, real-time odds, player history, everything. Once that is running smoothly I’ll roll out the same architecture for Aviator, Limbo-style, Chicken Road and the rest of the Daman Games catalogue, but right now Spribe’s casino suite is the proving ground. I’m interested in developers who have walked this road before. In your message, highlight the similar casino integrations you have completed and the obstacles you solved along the way; past experience with session management, risk control, or React fr...

Project Overview I am seeking an experienced full-stack developer or small team to audit, improve, secure, and modernize an existing production website and infrastructure. This is **not a greenfield project**. An existing frontend, backend/API, PostgreSQL database, content, media, forms, administrative functionality, Docker deployment, and VPS environment are already in place. The current website has experienced intermittent outages and loading failures. Based on prior troubleshooting, the likely problem area is a combination of deployment/runtime stability and security rather than a simple frontend bug. Known symptoms/issues include: Website sometimes hangs or times out while Docker containers still appear to be running. Nginx and Docker are functional, but the deployment is not yet ...

I am looking for an experienced developer to take over and improve an existing working web application called PosterForge. The project already has its main functionality implemented. I am not looking for a rebuild from scratch. The goal of this project is to: clean up the existing UI/UX so the application is simpler, clearer and easier to use; review and test the functionality that has already been implemented; identify bugs, unreliable behaviour or poorly implemented features; correct and improve those areas where necessary; tidy the existing code where appropriate; ensure the main workflows work consistently and reliably. When the project is returned to me, I want the functionality that has already been started to work properly and reliably, with a much cleaner and easier-to-use inte...

Subject: Collaboration Opportunity: 50/50 Equity Partnership for an AI-Powered DevTool Startup (Autonomous QA Agent) Hi, I am currently building a high-demand AI Developer Tool (SaaS) designed to eliminate the single biggest bottleneck in the software industry: Manual API Testing and Logic Debugging. We are launching an Autonomous AI QA Tester called "ZeroFault. My complete business roadmap, deep market validation, credit-based pricing model, and target market (3 Crore+ global developers) are fully established. Since I am personally heading the business strategy, market expansion, and product vision, I am actively looking for a highly skilled Full-Stack Technical Co-founder (Developer) who can spearhead the core backend engineering and architecture. I am not looking to hire a one...

Design mobile app on different subjects and done following jobs 1. Code review & stabilization — audit the existing React codebase, fix bugs, clean up architecture where needed 2. Production hardening — proper environment config, error handling, performance optimization, mobile responsiveness testing 3. Backend/data layer — set up or review database, user auth, and data storage for tracking features (kick counter, contraction timer, health monitors) 4. AI doctor chat — ensure reliable, production-grade integration (API key handling, rate limits, fallback behavior) 5. Payment integration — implement one-time purchase flow for individual premium tier (per our pricing strategy — no subscription model) 6. QA & testing — cross-browser and...

I’m moving forward with a fresh Android-only mobile application centred on social networking. The core idea is to let users create profiles, connect with friends, post updates, and interact in real time, but I’m deliberately keeping the feature set flexible so we can iterate together as the concept evolves. Here’s what I need from you: • A solid Android build (Kotlin or Java) that runs smoothly on current OS versions. • Clean, well-documented code pushed regularly to a Git repository. • An early prototype (APK) we can test on physical devices, followed by improvements based on feedback. • Basic backend integration—Firebase, Supabase, or a stack you recommend—for authentication, data storage, and push notifications. I’ll provide wire...

I’m launching an online hub and need a developer who can turn the concept into a full-featured, production-ready site. The platform should welcome entrepreneurs, investors, and mentors alike, so intuitive navigation and a clean, modern UI are critical. Core modules I must see at go-live: • Networking platform – searchable member directory, profile creation, direct messaging, and discussion threads. • Resource library – categorized, filterable repository where I can upload guides, templates, videos, and external links. Granular access control is a plus. • Event management – calendar, RSVPs, ticketing (free and paid), plus the ability to stream or embed virtual sessions. I’d like everything built with scalability in mind, using a mainstrea...

I'm seeking a developer to create a Minimum Viable Product (MVP) for a Travel Booking and Invoicing system. This platform will primarily manage car rental bookings and generate PDF invoices. Essential Features: - Booking Management: Users should be able to manage their car rental bookings efficiently. - Invoice Generation: The system must generate PDF invoices for all transactions. Ideal Skills & Experience: - Experience in developing booking management systems. - Proficiency in PDF generation for invoices. - Familiarity with car rental booking systems is a plus. - Strong backend development skills. Please provide examples of previous similar work. I have attached the PRD

My Baileys-based WhatsApp integration is working, but it is starting to lag under heavier traffic. I need an experienced developer who knows the Baileys library inside out to: • Profile the current code, identify the CPU, memory and I/O bottlenecks, and refactor or re-architect where necessary to improve throughput and lower latency. • Verify that every optimised change remains fully compatible with the Web version of WhatsApp, including session handling, QR login, message sending/receiving, media uploads and reconnection logic. • Provide a concise report of the issues discovered, the steps taken to fix them and before-and-after performance metrics (e.g. average response time, messages per second, memory footprint). Acceptance criteria – Messages and media must...

**Project Brief – E-commerce Platform Development** I am looking to develop a fully functional and scalable E-commerce platform that delivers a seamless shopping experience for users and an easy-to-manage system for administrators. **Project Scope:** The project includes the design and development of a complete E-commerce website with modern UI/UX and robust backend functionality. The platform should support product listing, user management, order processing, and secure payment integration. **Key Features Required:** * User registration and login system * Product catalog with categories and filters * Shopping cart and checkout functionality * Secure payment gateway integration * Order management system (admin panel) * Inventory management * Responsive design for mobile and deskto...

MVP Build — Quote Request We're looking for a freelance developer or small team to quote an initial MVP build. This is a rough-scope request to get a ballpark quote — not a full technical spec. Additional phases/tiers will be scoped separately once we're underway. What we're building (high level) A web platform that connects to third-party business software a client already uses (accounting/ERP-type systems, CRM/marketing platforms, etc.), pulls their data into a secure cloud environment, and gives the client a simple portal to log in and view/query that data — including an AI-assisted question-answering feature over their own data. Core skills required Backend development (Node.js/Express or equivalent) — building and hardening API routes, workin...

My WordPress site is running on a theme that looks fine to visitors, yet the template files in the back-end are outdated. I need someone to bring those theme files up to current WordPress standards so future core or plugin updates don’t break anything and so I can keep using the visual editor without glitches. Scope • Update the theme’s PHP, CSS and any bundled JavaScript only where necessary to eliminate deprecated functions and align with the latest WordPress coding standards. • Preserve every pixel and interaction on the front-end—no design or layout changes should be visible to users. • Ensure the Customizer, widgets, menus, and other admin-side controls continue working smoothly after your changes. Deliverable A refreshed theme folder (or...

Looking for a developer/agency to build a multi-platform service booking system (2 Apps + Admin Panel) Project Details Hello, We are looking for an experienced mobile app developer or a software development agency to build a comprehensive service booking platform. Core Components Required: Customer App: A user-friendly interface for customers to browse and book services seamlessly. Service Provider App: A dedicated interface for providers to receive, manage, and update service requests. Admin Panel: A centralized web dashboard for full management, tracking operations, generating reports, and controlling platform settings. Technical Requirements: Cross-Platform Development: Support for both iOS and Android, preferably built using Flutter for efficiency and scalability. Payment Gat...

Flutter Mobile Developer — Long-Term Equity-Based Opportunity at Chef AI About Chef AI Chef AI is an AI-powered cooking and food assistant currently being developed under CYCORP. The product is already well underway. The backend infrastructure and APIs have been developed, and the Flutter mobile application is substantially built. We are now looking for a Flutter Mobile Developer to join the team for the long term, complete the remaining development and integration work, and continue developing the product as Chef AI grows. This is not a traditional freelance project. We are looking for someone who wants to become part of the journey and grow with the company. Compensation — READ BEFORE APPLYING THIS IS AN EQUITY-BASED POSITION. There is NO fixed salary, hourly rate, mon...

Meeting Reminder App with WhatsApp, SMS & Push Notifications Project Overview We are looking for an experienced developer to build an internal meeting management and reminder application for our company. The application will allow team members to schedule and manage client meetings through personal calendars. An admin account must have full visibility and control over all meetings, while standard users should only access their own meetings and client information. The system must send automated reminders through WhatsApp, SMS, and in-app push notifications before scheduled meetings. Main Features Required : 1. Calendar & Meetings 2. User Roles & Permissions 3. Automated Notifications Required Technical Skills Strong backend development experience using Node.js, Python, or...

STRICT NOTICE FOR PRO DEVELOPERS ONLY Project Title: Senior Pure Flutter & System Architect Needed for AI-Powered 3D Avatar Ecosystem (TITAN X) READ CAREFULLY BEFORE APPLYING: We are building a next-generation, high-performance platform (TITAN X) featuring Real-time 60 FPS 3D Avatars, WebRTC Calling, Encrypted Chat, AI Translation, and a Master Admin Panel. DO NOT APPLY IF: You are a beginner, student, or part-time freelancer who gets confused by complex code. You say "Yes" on day one and back out after 2 days saying "Yeh mere bas ki baat nahi hai." You rely on low-code tools like FlutterFlow. (We only need Pure Flutter / Dart experts). You cannot handle custom animations, live state management, and real-time backend synchronization. WHAT WE WANT: We only need a Ma...

# eChampz — Senior Full-Stack Developer (Fiverr brief, v2) > Paste each block into the matching Fiverr field. Notes to Ahmed are in `>` blocks and must be deleted before posting. --- ## ABOUT THE CLIENT The client operates a gaming and esports marketplace serving Saudi Arabia and the wider GCC. The platform connects gamers, talent scouts, studios, teams, and brands. The founder is hiring a senior developer to take technical ownership of the codebase while the founder leads the business. --- ## THE ROLE We need a Senior Full-Stack Developer to take technical ownership of an established React and PostgreSQL platform currently in closed beta and moving toward public launch. This is a six-month engagement structured in three stages: a paid scoped trial, a defined first mile...

I need a seasoned PHP developer to design and build a clean, well-documented API from the ground up. The project centres entirely on backend logic—there is no front-end work—so your focus will be creating efficient endpoints, solid authentication, and clear JSON output. Here’s what I have in mind: • Code in modern PHP (8.x preferred) and follow PSR standards. • Use a framework or micro-framework you’re comfortable with—Laravel, Lumen, Slim, or even plain Composer packages are fine—as long as it stays lean and easy to maintain. • Include token-based authentication, structured error handling, and basic rate limiting. • Provide concise documentation (endpoints, parameters, responses) plus a Postman or Insomnia collection so I can...

Create a dashboard or central page that is fed from about 10 different task checklists or forms; multiple people will simultaneously work through a checklist and enter information into an event log. The event log will be displayed on the dashboard, as will outstanding tasks and some other data.

I'm seeking a PHP Laravel developer to fix a broken internal link on my website. Requirements: - Fix a broken internal link - Redirect to a specified internal page Ideal Skills and Experience: - Proficient in PHP and Laravel - Experience with link management and redirects - Attention to detail

We are looking for an experienced developer or agency to build — or integrate an existing solution for — multi-platform job publishing directly from our platform, with seamless inbound candidate flow back. WHAT WE NEED 1. JOB PUBLISHING ENGINE • When a recruiter creates a job on our platform, they should be able to select and publish it to multiple job boards in one click. • Must include global boards: Indeed, Monster, LinkedIn, Glassdoor, ZipRecruiter • Must include Philippines-specific boards: JobStreet, Kalibrr, , JobsDB, PhilJobNet • India boards (bonus): Naukri, Shine, Foundit (Monster India) • Should support both API-based posting (preferred) and XML/RSS feed-based distribution where APIs are unavailable 2. CANDIDATE SYNC • All candidates ...

I want to create new app. the first dropdown should be *Sector*. This makes the 4-step flow cleaner and scalable. *RECOMMENDED: SECTOR DROPDOWN - STEP 1* Here are the 6 main sectors you should keep: *1. Banking* All Banks: HDFC, SBI, ICICI, PNB, BOB, Axis, Kotak Covers: Account, ATM, Loan, NetBanking, FD *2. Insurance* Life: LIC, HDFC Life, ICICI Prudential Health: Star Health, ICICI Lombard, Niva Bupa Vehicle: Bajaj Allianz, TATA AIG Covers: New Policy, Claim, Premium, Nominee *3. Loan & NBFC* Banks + NBFC: Bajaj Finserv, HDB, Tata Capital, Poonawalla Covers: Personal Loan, Home Loan, Business Loan, LAP, Balance Transfer *4. Government Services* Central: PAN, Aadhaar, Passport, Income Tax, GST State: RTO-DL, Birth/Death Certificate, Electricity, Water Covers: N...

I'm seeking an experienced app developer to create a home maintenance service app for both iOS and Android platforms. The app should include a robust booking system and detailed service provider profiles. Key Requirements: - User-friendly interface: The app should be intuitive and easy to navigate for all users. - Booking system: Should allow users to easily schedule and manage their home maintenance requests. - Compatibility: The app must function seamlessly on both iOS and Android devices. Ideal Skills and Experience: - Proven experience in developing cross-platform mobile applications. - Strong background in UI/UX design. - Familiarity with backend development to support the booking system and profiles. - Excellent communication skills for ongoing updates and feedback. Please pr...

Need a single game aggregator API for an existing PHP/MySQL platform. Need hosted games, game-launch API, seamless-wallet integration, bet/win/refund callbacks, sandbox access and a large catalog including crash, mines, plinko, instant games and slots. Please quote setup fee, minimum monthly commitment and GGR revenue share.

Industrial AI Integration Platform – ERP & Manufacturing Systems Connectivity If your work rate is not 2-3$ per hour, please don’t apply!!!! Project Overview We are developing an advanced industrial software platform focused on improving operational efficiency within manufacturing environments. We are looking for an experienced developer/architect who can help us build the integration layer between our platform and existing enterprise manufacturing systems. The project involves connecting our solution with widely used industrial software ecosystems, enabling secure data exchange, real-time communication, and scalable integration with different production environments. This is a long-term and strategically important project for us, and we are looking for someone who und...

I need a senior full-stack engineer to join an intensive 10-day sprint to finish and launch Rally, a web-based operating system for college events and nightlife. This is a contractual engagement for 10 days, focused on delivering the MVP. The product and codebase already exist. This is NOT a build from scratch. You will receive the existing repository, detailed product scope, workflows, UI mockups, and launch priorities. The work includes completing and connecting the frontend and backend, authentication and user roles, event creation and management, organization dashboards, ticketing and QR check-in, payments, admin functionality, notifications, database integration, mobile responsiveness, bug fixing, testing, and production deployment. The web platform includes interconnected experien...

I need a senior full-stack engineer to join an intensive 10-day sprint to finish and launch Rally, a web-based operating system for college events and nightlife. The product and codebase already exist. This is NOT a build from scratch. You will receive the existing repository, detailed product scope, workflows, UI mockups, and launch priorities. The work includes completing and connecting the frontend and backend, authentication and user roles, event creation and management, organization dashboards, ticketing and QR check-in, payments, admin functionality, notifications, database integration, mobile responsiveness, bug fixing, and production deployment. I need someone who is extremely fast, experienced working inside existing codebases, and comfortable taking ownership without constant ...

I'm looking for an experienced Python/Full Stack developer to build a lightweight web application for internal use. Project Overview The application should allow me to enter a competitor's domain and automatically crawl the entire website to discover all content URLs. It should then analyze each URL and generate a Pinterest-focused competitor research report. Features Enter a competitor domain. Crawl the website and discover all article/content URLs. Analyze every discovered URL. Integrate with one or more APIs (API keys will be provided). Display Pinterest-related metrics for each URL (where available). Rank pages by Pinterest performance. Generate an easy-to-read report. Export results to Excel/CSV. Save reports for future reference. Technical Requirements Python preferred (...

I'm seeking an experienced app developer to create an initial Minimum Viable Product (MVP) for a cross-platform application on both iOS and Android. The app must feature user authentication and adopt a bright and colorful design. Key Requirements: - Develop for both iOS and Android platforms - Implement user authentication - Design a bright and colorful user interface Ideal Skills and Experience: - Proven experience in cross-platform app development - Strong knowledge of user authentication protocols - Expertise in creating vibrant and engaging app designs - Proficiency in relevant programming languages and frameworks Looking forward to your proposals!

Project Details $750.00 – 1,300.00 USD (Note: This is a more detailed repost.) Build MossTrade Website (MVP) (BELOW I HAVE Q&A) I'm looking for an experienced web developer to build the first version of my startup website, MossTrade. MossTrade is a platform that connects verified contractors with commercial clients looking for qualified professionals. I already have the branding, logo, and overall vision. I need someone who can build a clean, modern website that is easy to use and can grow over time. Phase 1 Requirements * Modern, professional homepage * Contractor sign-up and login * Commercial client sign-up and login * Contractor profile pages * Commercial project posting page * Contractor directory with search and filters * Basic dashboard for contractors and cl...

I need a web-based marketplace where campaign creators can publish live campaigns and participants can join, submit their entries, and track their standing on a real-time leaderboard. The scope is mid-level: robust enough to handle multiple concurrent campaigns but still lean so we can launch quickly and iterate. Core flow • Campaign creators: register, build campaign pages, set rules/criteria, monitor submissions, and close or extend campaigns. • Participants: register, browse active campaigns, submit work (file upload or link), and see their rank on the leaderboard. • Leaderboard: auto-updates based on campaign-specific scoring logic I will provide. • Admin console: light moderation (approve/flag campaigns or submissions) and basic analytics. Tech expectatio...