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I have an existing lead-gen app (React/TypeScript + Supabase + Express) that finds LinkedIn job postings via Apify, matches contacts via Apollo/Hunter, and needs to push results into Google Sheets on a schedule. It's partially built but has real gaps — full technical breakdown is in the attached brief, including exact files/endpoints involved. What needs to happen: Turn it into a multi-user web app (Supabase Auth + RLS), each user brings their own Apify/Apollo/Hunter API keys Each search: job title + location, one or more target contact titles (with user-defined variations, e.g. "CTO" = "Chief Technology Officer"), and a max contacts-per-company (1–5) Results auto-sync into a user-selected Google Sheet, one tab per search, on a schedule (1h–weekly) Google Sheets integration is currently non-functional (missing dependency) — needs building properly [login to view URL] integration was never actually finished — it's a stub, treat as a real build if included Remove GMass and a third-party email-verification dependency (Reoon) entirely — not needed Deploy free on Render, live at a custom subdomain (provided at that stage), staying online via a keep-alive ping Not needed: UI redesign, onboarding, payment gating, mobile responsiveness. Using AI coding tools (Claude/ChatGPT/Copilot/Cursor) is expected and encouraged — this is what makes the 5-day timeline realistic. Budget: $100 fixed, paid across 4 milestones tied to specific deliverables (full breakdown attached). Skills: React/TypeScript, Node/Express, Supabase, Google Sheets API + OAuth2, background job scheduling, Render deployment. Full technical brief with exact file names, endpoints, and known bugs attached — read it before bidding, it'll save you time scoping.
Project ID: 40665489
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$0 USD in 5 days
1.6
1.6

The missing Google Sheets dependency will cause the scheduled sync to fail as soon as the first job runs. I'll replace the stub with the official Google Sheets API client, wire OAuth2 flow, and store tokens in Supabase for each user. Then I'll add row level security so every user only sees their own searches and results. A common mistake is hard coding API keys in the server, which breaks when multiple users need their own credentials. You’ll get a clean multi user app where each search runs on schedule and writes to the chosen sheet without manual steps.
$140 USD in 4 days
2.4
2.4
92 freelancers are bidding on average $127 USD for this job

Hi, I can complete the existing React, TypeScript, Supabase, and Express application, including multi user access, API integrations, Google Sheets sync, scheduling, and Render deployment. I can also fix the existing gaps, complete the Hunter integration, remove the unused dependencies, and test the full workflow end to end within the defined scope.
$100 USD in 5 days
5.3
5.3

With over X years of experience in software development, API integration and automation, I'm equipped to effectively tackle the challenges your project presents. My name is Mohammad and my team and I have a proven track record of building intelligent software systems that automate workflows, deliver on complex data integrations, and harness AI technologies for enhanced productivity. Your project's focus on developing a multi-user web app with robust integrations into external platforms like Google Sheets aligns perfectly with our core area of expertise. Moreover, as an added value, our proficiency in OpenAI tools like Claude/ChatGPT/Copilot/Cursor will greatly assist us in holistic bug tracing and rectification. Rest assured that we will diligently work through your project's technical breakdown adequately addressing the known bugs while delivering impressive functionality and user experiences. To maximize your budget efficiency, we're also open to alternative payment structures if you find it more fitting. Give me a chance to show you how seamless integrating our skills with your project requirements can be - together we'll execute this project brilliantly!
$140 USD in 4 days
5.3
5.3

A recruitment lead-gen tool that needs "fix & deploy" usually has a working core and a broken edge — API limits, auth expiry or a deploy that never got automated. - Reproduce the failures, read the logs, fix the actual cause (Apollo API limits and pagination are a common one) - Multi-user handling: separate credentials/quotas per user, no shared-state surprises - Deploy properly: containerised, environment config, restart-safe, with a short runbook Proof: I run production services and API integrations for industrial clients, including rate-limited third-party pipelines. What's failing right now, and is the code accessible in a repo? Delivery 3 days from access. Happy to look at it today. Martin
$99 USD in 3 days
4.8
4.8

As someone who specializes in API integration and web application development, I am confident in my ability to address the gaps you've encountered with your lead-gen app. Specifically, my extensive experience with React/TypeScript, Node/Express, and Supabase make me well-equipped to turn your app into a multi-user web platform. I have previously implemented multi-user authorization systems using Supabase Auth and Row Level Security (RLS), ensuring that each user can securely bring their own necessary API keys. Additionally, I am well-versed in the Google Sheets API and OAuth2 which are essential for seamless integration with your related functionalities. With automated Google Sheets syncing and scheduled data transfer, I am experienced enough to handle a diverse range of tasks as mentioned in your brief. What sets me apart is my commitment to delivering polished, efficient, and scalable solutions - an attribute that is perfect for a project with a tight 5-day deadline like this. When we work together, you can count on clear communication, consistent updates, and unwavering dedication to meeting both your budget and your milestones. Let's join forces and not only fix but also enhance your app into a true powerhouse tool for generating recruitment leads!
$30 USD in 1 day
4.1
4.1

Hi there, I understand you need to ensure the lead-gen app transitions seamlessly into a multi-user web app with various integrations and automation. My experience with React, TypeScript, Node/Express, and API integrations aligns perfectly with your requirements, allowing me to address the gaps you've mentioned effectively. I’ll focus on the essential technical aspects such as implementing user authentication with Supabase, enhancing Google Sheets integration, and ensuring each component functions as intended. Your satisfaction is my priority, and I guarantee that I will deliver you a high-quality result. Regards, Ali
$100 USD in 1 day
3.8
3.8

As a seasoned AI developer and full-stack engineer, I bring over 6 years of experience in building sophisticated systems that elevate processes – exactly what your project demands. I am well-versed in your tech stack – React/TypeScript, Node/Express, Supabase, and Google Sheets API + OAuth2. Additionally, I have extensive background in automation showcasing my ability to streamline your recruitment lead-gen app into a multi-user web app efficiently. Some highlights from my body of work include developing AI voice receptionist for medical providers with seamless GHL booking functionalities and designing a kununu scraper capable of successfully pulling 367k profiles by bypassing WAF. These projects underscore my proficiency in implementing complex automation solutions - a skillset crucial to not just modifying your existing tool but also ensuring its smooth deployment on Render platform within the given timeframe. With me onboard, you're not just hiring another freelancer; you're gaining a reliable technical partner. Let's not waste any further time, get in touch now!
$30 USD in 1 day
3.7
3.7

Hi, I’ve reviewed your lead-gen tool scope carefully, and I can fix the missing pieces and deploy it within your 5-day deadline. I have strong experience with Software Development workflows involving React/TypeScript, Express, Supabase Auth with RLS, scheduled jobs, API integrations, and production deployment. I can complete the Google Sheets OAuth2 sync properly, finish the Hunter flow as a real integration, remove GMass/Reoon cleanly, and structure the multi-user logic so each account uses its own keys securely. I’ll work directly from your technical brief, update the exact endpoints/files involved, test the scheduled sync behavior, and deploy the app on Render with your custom subdomain setup. I can start immediately and target a working first milestone quickly so you can validate progress early. Do you want each user’s scheduled searches processed through Supabase cron/Edge Functions, or should scheduling stay in the Express layer on Render? Best regards, KANIKA
$150 USD in 5 days
3.5
3.5

Hi-Abror Here From Uzbekistan. "Fix And Deploy Recruitment Lead Tool" - I can stabilize your React/TypeScript app using Supabase, Express, Google Sheets API, OAuth2, scheduling and deployment. I can convert the current app into a multi-user system with Supabase Auth and RLS, separate API keys, search controls, contact limits, and secure data. I will implement Google Sheets OAuth2, scheduled sync, Hunter integration, dependency removal, testing, and Render deployment for reliable automated operation within the required workflow daily. Can you provide the current repository so I can verify the existing implementation and fix the listed gaps efficiently? Looking forward to working with you.
$223 USD in 7 days
3.1
3.1

Google Sheets breaking from a missing dependency is usually the easy half; the OAuth token refresh across multiple users on Render's free tier is where it actually bites, since the instance sleeps and cron-style schedules drop. I'll wire Sheets via a service-account or per-user OAuth with refresh handling, finish Hunter as a real client with rate-limit backoff, rip out GMass and Reoon, and lock RLS around per-user API keys before deploying to Render with a keep-alive. 1) Per-user OAuth for Sheets, or one shared service account with sheet sharing? 2) Is the scheduler currently node-cron in-process, or a separate worker? Cheers Shayan
$55 USD in 3 days
3.3
3.3

hello, The change that most defines this job is turning a single-user tool into a multi-user app where each person brings their own API keys, since that is not a surface change, it means the Supabase Auth and Row-Level Security have to genuinely isolate each user’s searches, results, and crucially their Apify, Apollo, and Hunter keys, so one user can never see or use another’s. That isolation is the real backbone here, because a multi-user tool where the RLS is slightly wrong leaks one user’s private API keys or leads to another, which is the one failure that breaks the whole thing, so I would get that tenant separation right first. The two integrations flagged as incomplete are where the honest effort sits, since you have rightly said the Google Sheets sync is non-functional and Hunter is a stub, so I would treat both as real builds, the Sheets OAuth and per-search tab syncing done properly, and Hunter finished rather than patched. The scheduled sync is the other core, one search feeding its own sheet tab on an hourly-to-weekly cadence, which needs reliable background job scheduling that survives Render’s free tier, hence your keep-alive ping. I read the attached brief closely before scoping, since you have listed exact files, endpoints, and known bugs, so the work is targeted rather than exploratory, and using AI coding tools as you encourage is how I would hit the five days on defined gaps like these. One honest note on the deadline, the two unfinished integrations plus proper multi-user RLS is real work for five days, so I would confirm from the brief whether the existing auth is already partly in place or fully greenfield, since that swings the timeline most. Is Hunter definitely in scope for this round, or optional if the Sheets sync and multi-user core take the time? And is the Google Sheets sync meant to use each user’s own Google account via OAuth, or one central service account writing to sheets they share? have a nice day.
$250 USD in 5 days
3.3
3.3

Hello there, we are a team of senior Full Stack Web and Mobile App Developers. I will create your application back system. Let's connect for a meeting and start the work. Thanks Ashish Kumar.
$140 USD in 7 days
3.2
3.2

Hi, I've read the scope. Three things I'd want settled before writing code, because they decide the architecture: 1. Google Sheets. "User-selected sheet" means OAuth, not a service account — a service account can't touch a sheet the user hasn't explicitly shared with it. So: Google OAuth consent, refresh tokens stored per user, and the picker returning a spreadsheet ID. That's the missing dependency doing real damage, not just a package install. 2. Scheduled sync on Render free. Free web services spin down when idle, and a keep-alive ping keeps the instance warm but doesn't make an in-process scheduler reliable — a restart mid-cycle silently drops runs. I'd persist next_run_at per search and have the tick claim due jobs from the DB, so a restart resumes instead of losing the schedule. Same pattern moves to a real cron later with no rewrite. 3. BYO API keys. Apify/Apollo/Hunter keys must be encrypted at rest and never readable by the client. RLS alone doesn't cover that — a leaked anon key plus a policy mistake exposes every user's credentials. Keys stay server-side, decrypted only inside the Express layer at call time. The rest is straightforward: Supabase Auth + RLS per user, title-variation matching, contacts-per-company cap, one tab per search, finishing the Hunter integration properly, and stripping GMass and Reoon out. I use Cursor daily, so the AI-assisted workflow suits me. Can you share the repo and the attached brief?
$100 USD in 1 day
2.9
2.9

Hello, Having worked extensively with React, TypeScript, Node/Express, and most importantly Supabase, I assure you that I'm the ideal fit for your multi-faceted project. With over 7 years of experience as a Full-Stack Developer heavily centered around web and software development, I've acquired a deep understanding of implementing powerful tooling just like yours. Merging my penchant for automation and proficiency in API Integration, I'll transform your lead-gen app into a robust Supabase Auth platform that supports multiple users. Notably, my extensive work with Google Sheets API + OAuth2 seamlessly aligns with your requirement to auto-sync search results across user-selected sheets. Moreover, as someone well-versed in background job scheduling and web application deployment on platforms like Render, I can ensure reliability and smooth functionality by employing proper integrations and a keep-alive ping system. In terms of efficiency, my AI coding expertise should provide significant leverage; ChatGPT or any similar tools will be utilized effectively to actualize your project within the stipulated timeline without compromising quality. Your budget structure aligns beautifully with my milestone-oriented mindset too! By assigning deliverables to each chunk and wrapping them up intelligently, you'll witness tangible progress at every step. With me at the helm of your project, expect an evolved & deployed recruitment tool rife with Concision. Thanks!
$30 USD in 6 days
2.6
2.6

Hi, I can take your existing React/TypeScript + Supabase + Express application from its current state to a fully working multi-user production deployment. I can handle **Supabase Auth/RLS, per-user API keys, Apify/Apollo/Hunter integrations, Google Sheets OAuth/API, scheduled background jobs, search-based tabs, and Render deployment**. I’ll also properly remove **GMass/Reoon**, complete the unfinished Hunter integration, fix the current Google Sheets dependency issue, and keep the implementation focused on your existing UI without unnecessary redesign work. I’m comfortable using **Cursor, Claude, ChatGPT, and Copilot** to accelerate development while carefully testing the generated code and meeting your exact milestone requirements. I’m ready to review the attached technical brief first and start immediately, with the goal of delivering the complete working solution within the proposed **5-day timeline**.
$140 USD in 7 days
1.0
1.0

Hi! I've reviewed your project and I'm confident I can fix and deploy your existing lead-gen tool within the 5-day deadline. I have experience with React/TypeScript, Supabase, Express, and API integrations, and I can quickly identify and resolve the issues. My approach will be to first audit the current codebase, then fix the core functionality, and finally deploy it to a production environment. I'm available to start immediately and can deliver a working solution quickly. Let's get this done!
$30 USD in 3 days
0.0
0.0

Hello! I can complete the React/TypeScript, Supabase, Express and Google Sheets workflow, including OAuth, scheduling, API integrations, RLS and Render deployment. Let’s discuss the milestones here.
$250 USD in 7 days
0.0
0.0

Hi, You're turning a partially built lead-gen app into a multi-user web tool with per-user API keys, scheduling, and Google Sheets exports. I’ve done similar data-tool work where per-user isolation, scoped API access, and reliable export pipelines matter in production. Execution approach: I’d start by finalizing Supabase Auth + RLS, wire user-specific API keys, and implement a per-search Google Sheet tab that auto-syncs on a defined cadence. I’ll replace the missing dependencies with trusted equivalents, ensure the Hunter stub is wired, and remove GMass/Reoon. Deployment on Render will include a keep-alive ping and a custom subdomain. One technical risk / key challenge: Managing per-user keys and credentials securely across scheduled runs can be tricky. Two clarification questions: - What should happen if a user rotates their API keys mid-cycle? - Are there any Google Sheet quotas or naming conventions we should enforce? If we're aligned, I can outline the implementation phases before kickoff. Best regards, Brandon
$100 USD in 1 day
0.0
0.0

Hey — saw your post about fixing and deploying the existing recruitment lead-gen tool. Sounds like managing multi-user data flow and real-time updates could be tricky to get right under your tight deadline. Quick question: Is the main issue related to syncing LinkedIn job post data or something else on the backend? I’ve worked on React and Supabase apps handling real-time user data and can help get this stable and deployed fast. If you send me the current code or error logs, I can review and get back to you today.
$140 USD in 7 days
0.0
0.0

I understand the main challenge is taking your partially built React/TypeScript + Supabase + Express lead-gen app and turning it into a reliable multi-user system, while fixing the incomplete Google Sheets and Hunter integrations without wasting time rebuilding features that already work. I would implement Supabase Auth + RLS so each user has isolated data and can securely manage their own Apify, Apollo, and Hunter API keys. I’ll also complete the search flow for job title, location, target contact titles with user-defined variations, and the 1–5 contacts-per-company limit. I specialize in React/TypeScript, Node/Express, Supabase, API integrations, OAuth2, background jobs, and deployment. I’m comfortable using Claude/ChatGPT/Cursor/Copilot to accelerate development while still reviewing and testing the generated code carefully. Thank you for considering my proposal. I look forward to reviewing the technical brief and getting the app completed. Best regards, Ritesh N
$30 USD in 7 days
0.0
0.0

The tricky part of this build isn't any single integration. It's the Google Sheets OAuth2 flow in a multi-user setup where each user brings their own API keys. You need per-user token storage with refresh handling, scoped to their selected sheet, and that has to play nice with Supabase RLS so users only see their own credentials and results. Most partially built apps I've taken over get this wrong by storing tokens at the app level instead of per-user. I've shipped almost this exact shape before. React/TypeScript frontend, Supabase auth with RLS policies, Express API layer, third-party API integrations (Apify, Apollo, Hunter are all REST-based, straightforward once the credential routing is right). Google Sheets API with OAuth2 consent flow is something I've wired up on two prior projects. Render free-tier deployment with the cron keep-alive ping is a pattern I know well since free Render instances spin down after 15 minutes of inactivity. You get someone who can actually read your existing codebase, figure out what's working vs what's stub code, and close the gaps without rewriting things that already work. I can start today and the 5-day timeline is realistic for this scope. Want to walk through the brief together before I start pulling the repo apart?
$150 USD in 7 days
2.0
2.0

Aïn Temouchent, Algeria
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