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I’m building a full-stack MERN web app that transforms a single prompt into a complete cold-email sequence in seconds. The flow is simple: a user drops one short description of their offer, chooses any personalized placeholders like {{firstName}} or {{company}}, and the app instantly returns an optimized subject line, primary email, and an automatic follow-up—everything tailored strictly for Email outreach (no LinkedIn content required). Key requirements • Authentication must default to secure OTP delivery, with Google login offered as a quick alternative. • Every generation is stored so the user can review, copy, or delete past emails from a tidy history panel. • The React front-end needs to be clean, fast, and fully responsive; feel free to use a modern component library as long as the final look is professional. • Node/Express and MongoDB will power the back-end, while the AI layer can run on OpenAI or a similarly capable LLM. Please structure prompts so personalized fields are respected and returned exactly where the user specifies them. Acceptance criteria 1. Sign-up, sign-in, and forgot-password flows work with OTP and Google OAuth. 2. A single prompt plus personalization tokens reliably returns three pieces of copy: subject, main email, follow-up email. 3. History page lists previous generations with date/time and a quick copy button. 4. Front-end passes Lighthouse mobile and desktop performance audits at 90+ scores. 5. Code is delivered in a well-documented Git repo with clear environment variables for the AI key and Mongo connection string. Deliver the complete source, a short deployment guide, and a live demo link (Heroku, Render, or Vercel) so I can test end-to-end before sign-off.
Project ID: 40721038
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56 freelancers are bidding on average ₹976 INR/hour for this job

As an established developer with an extensive background in Node.js and React.js, I have the necessary technical skills to bring your AI Cold Email Outreach Generator to life. With over 8 years in the field, working on dynamic projects has become second nature to me. My skillset extends from well-documented coding and managing databases like MongoDB and MySQL, to employing DevOps with tools like Linux, Git, and Docker for seamless development and deployment. Efficiency is at the heart of my approach, which aligns perfectly with your project's vision. Constructing a web app that generates cold-email sequences in seconds is a task I'm well-prepared for. Moreover, my experience with authentication processes will ensure a secure OTP delivery and smooth integration of Google login as per your requirement. Not only can I create a clean, fast, and expertly-resposive front-end with a modern component library but also organize data efficiently so users can review, copy or delete past emails effortlessly. My work will always pass Lighthouse mobile and desktop performance audits at 90+ scores. By choosing me, you'll gain from my proficient delivery of clean source code along with a deployment guide and a live demo link — providing you ample opportunity to test the application's potential end-to-end before sign-off. Are you ready to take your email outreach strategy up a notch? Let’s work together!
₹750 INR in 40 days
6.7
6.7

Hi, I build full-stack MERN apps with LLM integration. This is a well-scoped project: React frontend, Node/Express backend, MongoDB for history storage, and OpenAI API wired to a structured prompt that respects personalization tokens exactly as specified. Approach: Auth: OTP email delivery + Google OAuth, forgot-password flow included AI layer: OpenAI with prompt engineering to return subject + main email + follow-up reliably with {{placeholders}} intact History panel: full CRUD with date/time and one-click copy Frontend: Lighthouse 90+ on mobile and desktop, clean component library Timeline: 10-14 days, live demo on Render/Vercel included. My rate: $15/hr — can you share the expected total hours or a fixed budget cap so I can confirm fit?
₹750 INR in 40 days
4.1
4.1

The part I’d pay most attention to is **output consistency**. A normal AI prompt can rewrite or drop `{{firstName}}` / `{{company}}`, so I’d validate personalization tokens before generation and use structured AI output for subject, primary email and follow-up, then verify the same tokens are preserved before saving the result. I’d build this with **React + Node/Express + MongoDB**, OTP authentication with Google OAuth, and a lightweight history model for fast retrieval/copy/delete. The frontend would be kept lean specifically around your 90+ Lighthouse requirement rather than adding an unnecessarily heavy UI library. I can deliver the Git repo, environment setup, deployment guide and live demo. One question: should users get unlimited generations initially, or do you want usage limits/credits built into the architecture from v1?
₹800 INR in 40 days
2.2
2.2

Hello, I have over 10 years of experience in Node.js, React.js, and AI Content Creation. My name is Olusoji, and I specialize in developing innovative solutions tailored to specific project requirements. I have carefully reviewed your project description for the AI Cold Email Outreach Generator. I understand the need for secure OTP authentication, a user-friendly interface, and efficient email generation. I am confident in my ability to deliver a clean and responsive React front-end, along with a robust Node/Express back-end integrated with AI capabilities for personalized email content. I would love to discuss the project further with you. Please start a chat so we can explore the details and requirements in depth. Best regards, Olusoji
₹1,000 INR in 40 days
1.7
1.7

Hello, I understand you need a full-stack MERN web app that turns one prompt into a personalized cold-email sequence with a subject line, primary email, and automatic follow-up. The goal is a fast, responsive, and reliable outreach generator with secure authentication and generation history. Here’s what I can provide: • React responsive UI with OTP authentication, Google OAuth, personalization tokens, and clean history management. • Node.js/Express + MongoDB backend for secure generation storage, retrieval, copy, and deletion. • OpenAI/LLM integration with structured prompts that preserve {{firstName}}, {{company}}, and other placeholders exactly. I bring over 4+ years of experience in React, Node.js, Express, MongoDB, JavaScript/TypeScript, REST APIs, authentication, and AI/API integrations, with experience building full-stack applications focused on performance and usability. Just to clarify a few things: 1. Do you already have the preferred AI model/provider and email-generation prompt structure? 2. Should OTP authentication use email OTP, SMS OTP, or both? Please come to the chat box to discuss more about your project. Best regards Indresh Kushwaha
₹1,000 INR in 40 days
1.8
1.8

Hi, The key to this app is making the AI generation feel instant while keeping personalization tokens like {firstName} and {company} reliable and untouched. I’d build the generation flow around structured AI output plus server-side validation rather than simply returning raw LLM text. I’d use React + TypeScript for the responsive UI, Node.js/Express for the API and MongoDB for authenticated generation history. Authentication would support secure OTP alongside Google OAuth, while each generation would be tied to the user with proper access controls. For the AI layer, I’d structure the prompt/output contract to consistently return the subject, primary email and follow-up, then validate the required placeholders before storing the result. History would support timestamps, copy and deletion, with the frontend optimized toward the requested Lighthouse 90+ target. I’d also provide the Git repository, environment configuration, deployment guide and a live test deployment. One question: which OTP delivery method do you prefer email, SMS/Twilio, or another provider? If the authentication preference is confirmed, we can scope the implementation around the complete prompt-to-history workflow. Best regards, Deepak.
₹800 INR in 36 days
1.7
1.7

Hi, I have developed several projects of this kind, and at their core they involve building MERN apps that turn a single prompt into ready copy using an LLM, with secure auth, saved history and a clean responsive front end. ? The most important and difficult part is making the AI return the exact three pieces of copy with personalization tokens placed correctly every time, while auth and history stay secure. ✅ When I developed this kind of app, I actually faced the model dropping or misplacing personalization tokens, inconsistent output across prompts, and auth edge cases with OTP and Google login. I solved this with structured prompts and strict output formatting that forced subject, main email and follow-up to return exactly as specified, validation and re-prompting when tokens were missing or misplaced, OTP auth with proper expiry and rate limiting plus Google OAuth as an alternative, and MongoDB storing every generation so users could review, copy or delete from history. The React front end used a modern component library and was optimised with lightweight assets and code splitting to pass Lighthouse at 90+ on mobile and desktop. ✅ The result is that one prompt reliably returned subject, main email and follow-up with tokens respected, auth and history worked end to end, and the app passed Lighthouse targets with a live demo the client could test before sign-off. Best regards, Michel
₹1,000 INR in 40 days
1.8
1.8

Like you had builded the application, so we can discuss everything on a call that how much work is there to do and how many days it will take, thank you
₹1,000 INR in 40 days
1.0
1.0

Hi, I can build this as a complete **MERN + AI application**, covering the React frontend, Node/Express backend, MongoDB and LLM integration. The core flow will take one offer description plus placeholders like `{{firstName}}` and `{{company}}` and reliably generate three separate outputs: **subject line, primary cold email and follow-up email**, while preserving the personalization tokens exactly. The implementation can include: • OTP authentication + Google OAuth • Generation history with date/time, copy and delete • OpenAI/LLM integration with structured prompts • Secure REST APIs and MongoDB data management • Responsive React UI with performance optimization • Proper validation, error handling and environment configuration • Deployment on Vercel/Render and documented Git repository I’ll also test the frontend against the requested **90+ Lighthouse performance target** on mobile and desktop. If you share the preferred UI direction or wireframe, I can review the flow and suggest the MERN architecture before development. Best Regards Prachi Webix Infotech
₹1,000 INR in 40 days
0.0
0.0

Hello — I would treat this as a production MVP, not just a React form around one AI call. The important parts are preserving placeholders exactly, secure OTP/OAuth flows, per-user history ownership, predictable structured output, and keeping Lighthouse above 90. My implementation would use React, Node/Express and MongoDB, with short-lived OTPs, rate limiting, Google OAuth, schema-validated AI responses, placeholder verification, retries/fallbacks, and a clean responsive history dashboard. I would deliver in three checkpoints: (1) authentication and data model, (2) generation/history workflow with tests, (3) UI performance, deployment and documentation. Relevant work includes a production-ready order API with JWT, validation, migrations, Docker/CI and documented endpoints, plus reliable e-commerce integrations with idempotent processing. I can provide the repository, deployment guide and working demo requested. A realistic first version is about 3–4 weeks at 25–30 hours per week. One question before kickoff: do you already have preferred providers for OTP email and the LLM, or should I select the most cost-effective options?
₹1,000 INR in 30 days
0.0
0.0

Hi, I can help build your MERN-based AI cold-email generation platform with a clean, fast, and responsive user experience. I can handle the React frontend, Node.js/Express backend, MongoDB, secure OTP authentication, Google OAuth, AI integration, and email generation workflow. I understand the importance of keeping personalization tokens such as {{firstName}} and {{company}} exactly where the user specifies them. I can also build the generation history with date/time, copy, and delete options, along with a professional dashboard and optimized mobile experience. I will provide well-structured and documented code, environment variables, deployment guidance, and a live demo for end-to-end testing. I would be happy to discuss the project and start with the MVP. Best Regards Ekta
₹1,000 INR in 40 days
0.0
0.0

We have a full stack team, we can do it with low cost and you will get lifetime support.
₹750 INR in 40 days
0.0
0.0

Hi - the part of this app that usually goes wrong is the personalization tokens. If {{firstName}} or {{company}} go straight into the prompt, the model paraphrases them or drops them. I'd swap each token for an opaque marker before the call, ask for structured JSON (subject, email, follow-up), then check every marker came back exactly where the user placed it and re-ask only for the missing piece if not. That is what makes "returned exactly where the user specifies" reliably true. The rest, in build order: MERN app with OTP login (email OTP first: hashed, short expiry, rate-limited per address; SMS OTP costs money and needs a provider, so I'd add it only if you want it), Google OAuth, a history panel with copy and delete, and the OpenAI call behind a per-user usage limit so one account cannot run up your bill. React front end built for Lighthouse 90+ on mobile, with a live demo on Render or Vercel. Timeline: first working version in 3 days, with polish and the Lighthouse pass on top. To be straight: I have not built an outreach-copy generator specifically, but auth, structured LLM output and a history store are work I do regularly. One fixed tone, or a tone selector? - Aakaash
₹750 INR in 40 days
0.0
0.0

Hi, I’m new to Freelancer.com, but I have real-world experience building full-stack applications and working with companies. I can build your MERN cold-email generator with OTP/Google authentication, AI generation, personalization tokens, email history, and a responsive React UI. I can also provide clean documentation, deployment, and a live demo. I’d be happy to discuss the project.
₹750 INR in 40 days
0.0
0.0

Hi, I understand the core workflow of your Cold Email Outreach Generator: a user provides a short description of their offer, selects personalization placeholders such as {{firstName}} and {{company}}, and the application generates a subject line, main cold email, and follow-up while preserving those placeholders correctly. I can build this as a full-stack React/Node application with MongoDB and an LLM API. My approach would include: • React + TypeScript responsive frontend • Node.js + Express backend and REST APIs • MongoDB for users and generation history • OTP authentication and Google OAuth • LLM integration for email generation • Protected placeholder handling for tokens like {{firstName}} and {{company}} • Generation history with copy and delete functionality • Secure environment variable configuration • Production deployment and documentation • Performance optimization and testing I will also structure the AI prompts and output validation carefully so personalization tokens are not accidentally changed or removed during generation. I can provide the complete source code, setup documentation, deployment instructions and a working demo. Estimated timeline: 3–4 weeks Rate: ₹1,000/hour I’m available to start immediately and can work milestone-by-milestone. Thank you, Abhimanyu
₹1,000 INR in 40 days
0.0
0.0

Hi, I can build your AI Cold Email Outreach Generator using MERN with OpenAI integration. I’ll handle the complete end-to-end application including: React responsive UI Node.js/Express backend MongoDB database OTP + Google OAuth authentication AI-generated subject, main email & follow-up Exact {{firstName}}, {{company}} placeholder preservation Generation history with copy/delete API security and validation Lighthouse performance optimization Production deployment + live demo Well-documented Git repository and deployment guide I understand the workflow and acceptance criteria clearly and can build this as a clean, scalable production-ready application. I’m ready to start immediately. Best regards, akhil sarma
₹1,000 INR in 40 days
0.0
0.0

Hi, we can build your complete MERN-based AI cold-email platform with OTP + Google authentication, OpenAI integration, token-aware prompt generation, generation history, copy/delete functionality, and a fast responsive React UI. We’ll ensure the API reliably returns subject, primary email, and follow-up content while preserving placeholders exactly, optimize the frontend for 90+ Lighthouse scores, and provide the documented Git repo, deployment guide, and live demo.
₹1,000 INR in 40 days
0.1
0.1

Cold outreach tools fail when the emails feel templated and the login flow adds friction before value is shown. I will build the flow you described: a single prompt turns into a subject line, primary email, and follow-up, with placeholder support for personalization. You will get a working MERN application with secure OTP login, Google login as a fast alternative, a saved history panel to review, copy or delete past generations, and a clean, responsive interface within 7 days of confirmed start. I need from you: the email or content provider you already use or want integrated, brand or tone guidelines for the generated copy, and confirmation on hosting for the database and backend. Not included: ongoing email sending infrastructure, deliverability warm up, or CRM integration beyond the history panel described. This rate is below my usual one because I am building my first review on this profile and your scope is precise; my regular rate is on my profile. Can you confirm which provider you plan to use for the generation step so I size the integration correctly?
₹755 INR in 40 days
0.0
0.0

Being an experienced technology leader for over 20 years, I am confident that I have the expertise and skills to successfully deliver this project. My academic background in Computer Science and a PhD in Artificial Intelligence will be valuable in building a robust AI system for your cold-email generator. The fact that I have worked extensively on digital products, SaaS applications, and automation tools, similar to what you're looking for, makes me well-versed with the different layers and intricacies involved in delivering quality software. With your focus on security, I assure you of providing secure OTP authentication for sign-up and sign-in. Additionally, my proficiency with Node/Express, React.js and MongoDB will ensure that I meet all your desired functionalities including storing every generation, displaying them in a neat history panel, and making provisions for comprehensive front-end design that passes Lighthouse mobile and desktop performance audits at 90+ scores. Throughout my career, I have consistently delivered well-documented code confidently utilizing Git as version control. The environment variables for the AI key and Mongo connection string will also be properly organized so the code remains clean and manageable. Finally, my dedication to quality includes not only source code delivery but short deployment guide along with a live demo link on Heroku
₹750 INR in 40 days
0.0
0.0

This is a tight MERN build: prompt in, then subject line, email and follow-up out, with {{placeholder}} handling and saved history. I estimate about 12 hours. If you'd rather have a fixed price, I'm happy to do it for Rs 21,000. Which LLM would you like to use, and do users need accounts in the first version?
₹1,250 INR in 12 days
0.0
0.0

Gujarat, India
Member since May 7, 2024
$250-750 USD
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₹12500-37500 INR
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₹750-1250 INR / hour
₹250000-500000 INR
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€2-6 EUR / hour
$250-750 USD
₹12500-37500 INR
$30-250 USD
₹1500-12500 INR
$1500-3000 USD
₹12500-37500 INR
$250-750 USD
$2-8 USD / hour
₹750-1250 INR / hour
$250-750 USD
₹12500-37500 INR