
Closed
Posted
Paid on delivery
I am looking for an experienced browser automation developer for a proof-of-concept project. The goal is to create a lightweight automation tool that synchronizes availability between two browser-based booking/calendar platforms used by appointment-based businesses. This is NOT a full SaaS platform or CRM project. We only want a focused and reliable proof of concept. Main functionality: Detect when a new booking appears in Platform A Read: start time end time / duration assigned staff member Automatically create a busy/unavailable block in Platform B for the same time slot Important: No customer data sync required No payment integration No advanced frontend/UI needed Reliability and clean automation logic are the priority Preferred technologies: Playwright Puppeteer Node.js or Python Required experience: Browser automation DOM parsing Session handling Automation workflows Error handling / retries Nice to have: Experience building Chrome extensions Experience with scheduling/calendar systems This project is only a proof of concept initially, but may evolve into a larger long-term project if successful. Please include: Relevant automation/browser projects Preferred stack Estimated timeline Your technical approach for building this PoC
Project ID: 40429241
121 proposals
Remote project
Active 4 days ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
121 freelancers are bidding on average €1,082 EUR for this job

As a seasoned IT & Engineering company with nearly a decade of developing browser automation tools, let me assure you that your proof-of-concept project is in the hands of capable experts. We understand that this isn't an elaborate SaaS or CRM platform -- it is a very focused and reliable tool you require, and we are committed to delivering just that. Our team thrives on using technologies that ensure accuracy and clean automation logic, such as Playwright, Puppeteer, Node.js and Python which are all part of our preferred stack. Having honed our skills in DOM parsing, session handling, automation workflows and error handling/retries over the years, not only can we confidently build the core functionalities but also ensure a highly reliable product. In the world of browser-based booking platforms for appointment-based businesses, we understand that seamless synchronization between calendars is paramount. This knowledge has driven us to become proficient in building Chrome extensions which might be a plus for your project. Our technical approach will be to leverage our substantial experience in automation and hands-on delivery to build a fast, secure and scalable system.
€1,500 EUR in 20 days
9.4
9.4

⭐⭐⭐⭐⭐ Create Reliable Browser Automation for Booking Synchronization ❇️ Hi My Friend, I hope you are doing well. I've reviewed your project requirements and see you are looking for an experienced browser automation developer. Look no further; Zohaib is here to help you! My team has successfully completed 50+ similar projects focused on browser automation. I will create a lightweight tool to sync availability between your booking platforms, ensuring reliability and efficiency within your budget. ➡️ Why Me? I can easily handle your proof-of-concept project as I have 5 years of experience in browser automation, DOM parsing, session handling, and error management. My strong grip on Playwright, Puppeteer, and both Node.js and Python makes me well-equipped to deliver a clean and effective solution. ➡️ Let's have a quick chat to discuss your project in detail and let me show you samples of my previous work. I look forward to discussing this with you! ➡️ Skills & Experience: ✅ Browser Automation ✅ DOM Parsing ✅ Session Handling ✅ Automation Workflows ✅ Error Handling ✅ Playwright ✅ Puppeteer ✅ Node.js ✅ Python ✅ Chrome Extensions ✅ Scheduling Systems ✅ Booking Platforms Waiting for your response! Best Regards, Zohaib
€900 EUR in 2 days
8.1
8.1

Hello, this PoC for synchronizing booking availability between two browser-based platforms requires precise and reliable automation logic without extraneous features. The real engineering risk lies in robust session handling and DOM parsing to detect booking changes and accurately propagate them without data loss or duplication. I usually structure automation systems with clear separation between detection, transformation, and action layers to isolate failure points and simplify retries. My experience with Custom Feature Development & Integration involved deep codebase analysis and reliable feature delivery in live environments, which aligns well with this project’s needs. I recommend separating booking detection from update orchestration to manage retries and error handling cleanly, ensuring no missed or duplicated time blocks. Systems like this benefit from fallback strategies and idempotent operations to maintain sync integrity under flaky sessions or DOM changes. I can deliver a detailed outline of the retrieval and update pipeline, map the automation flow, and review the session handling strategy to ensure clean, maintainable PoC delivery. Thanks, Hercules
€1,500 EUR in 7 days
7.2
7.2

Hi I can develop a chrome extension that will automate the booking. please share more details and website links so i can get clear idea of the data . Let’s chat to proceed further
€1,125 EUR in 10 days
7.6
7.6

I can build this as a focused, reliable browser automation PoC for cross-platform booking synchronization. ✔ Detect new bookings in Platform A (Playwright/Puppeteer) ✔ Extract time, duration, staff data from DOM ✔ Auto-create blocked slots in Platform B ✔ Session handling + login persistence ✔ Retry logic + error recovery for reliability ✔ Headless or visible mode execution ✔ Lightweight Node.js or Python service (your choice) Approach: • Step 1: Analyze both booking flows + DOM structure • Step 2: Build scraping + event detection layer • Step 3: Map data → transformation logic • Step 4: Automate slot blocking in Platform B • Step 5: Add logging + retry + stability layer Tech Stack: Node.js + Playwright (recommended for stability) or Python + Selenium/Playwright Timeline: ~3–7 days for working PoC Deliverables: • Working automation script/service • Setup instructions • Configurable mapping layer (A → B rules) • Error logs + basic monitoring output If you want, I can also outline a more scalable architecture for turning this into a full SaaS later.
€1,000 EUR in 7 days
7.5
7.5

Hi Andreas V., Last week I delivered a near-identical PoC: detect new bookings in one platform and auto-block the same slot in another. I’m confident to handle this really well. i would like to know the below. - Which exact two platforms are we syncing, and how do they auth (plain login, 2FA, captcha, SSO)? - How should staff be mapped across platforms (1:1 names, ids, or a custom mapping file)? I think we should. - Use Playwright + Node.js with a persistent user-data-dir to keep sessions stable and reduce logins. - Add idempotency keys and a tiny local store so we never create duplicate blocks and can retry safely. Lets follow a plan like this. 1) I confirm flows, element targets, and staff mapping; set env config without touching any customer data. 2) I build a watcher for Platform A: robust selectors, diffing new bookings, and queued events. 3) I implement a creator for Platform B: validate window, create busy block, handle retries/backoff. 4) I add logging, screenshots/traces on failure, simple CLI, docs, and handoff. My approach & stack: - Playwright + Node.js (TS), headless runner, resilient DOM parsing, retry/backoff, structured logs, small JSON/SQLite state. Relevant work: - Booking sync PoC: Calendly → Fresha using Playwright. - Google Calendar → Setmore busy-blocker; Chrome extension for session stability
€1,500 EUR in 9 days
7.0
7.0

I’ve reviewed your PoC requirement for a browser automation sync tool that bridges two booking platforms, where new bookings from Platform A are detected and mirrored as unavailable time blocks in Platform B. The focus is clearly on reliable automation, not UI or SaaS complexity, with emphasis on accurate time-slot mapping, staff handling, and robust error-free execution. I will build a lightweight PoC using Node.js with Playwright (or Puppeteer if preferred) to handle authenticated sessions, DOM parsing, and booking detection. The system will continuously monitor Platform A for new or updated bookings, extract required fields (start time, end time, staff), and automatically apply corresponding “busy blocks” in Platform B. The design will include retry logic, session recovery, structured logging, and a clean mapping layer to ensure consistency between both systems without data leakage or unnecessary overhead. I’m ready to start immediately and structure this as a stable automation core that can later evolve into a larger scheduling or integration system if needed. The PoC will be delivered with clean, modular code and clear setup instructions for easy testing. Thanks, Asif
€1,500 EUR in 11 days
6.6
6.6

Hi, I can build a simple proof of concept that syncs availability between the two booking platforms using browser automation. My preferred approach is Playwright with Node.js because it is reliable for login sessions, reading page data, clicking through booking screens, and handling errors. The tool will check Platform A for new bookings, read the start time, end time, and staff member, then create the matching unavailable block in Platform B. I will keep the system lightweight, with no complex UI or unnecessary features. The focus will be clean automation logic, stable selectors, retries, basic logs, and clear documentation so it can be tested easily and expanded later if needed. I have experience with browser automation, DOM parsing, session handling, and workflow automation, so I can deliver a practical PoC quickly. Best, Justin
€1,125 EUR in 7 days
6.3
6.3

Hi there, I understand you need a focused proof-of-concept browser automation tool that syncs availability between two booking/calendar platforms by detecting new bookings in Platform A and automatically blocking the same time slot in Platform B. My approach is to build a lightweight automation service using Playwright with Node.js or Python, depending on what best fits your environment. The system will monitor Platform A, extract booking details such as start time, end time or duration, and assigned staff member, then replicate that as an unavailable block in Platform B. The focus will be on reliability rather than UI. I will implement stable selectors, session handling, retry logic, and structured logging to ensure the automation behaves consistently even if the page layout changes slightly. The architecture will be modular so detection and action layers are separated, making it easy to extend later into a larger system if needed. The final solution will run headlessly as a simple service, with clean, maintainable code and clear setup instructions for deployment. Do either platforms use MFA, CAPTCHA, or token-based session expiry that I should account for in the automation flow? I’m ready to begin immediately. Warm Regards, Aneesa.
€750 EUR in 3 days
6.5
6.5

Hi There!!! ★★★★ (Proof-of-concept browser automation for booking sync between two platforms) ★★★★ Project understanding: I understand you need a focused PoC automation tool that reads new bookings from Platform A and mirrors them as unavailable time blocks in Platform B. No UI, no CRM or payments—only reliable background automation with strong error handling and stability. Services mentioned here based on project details ⚜ Build lightweight automation PoC using Playwright/Puppeteer ⚜ Develop booking detection logic from Platform A calendar/DOM ⚜ Sync logic to create blocked slots in Platform B accurately ⚜ Handle sessions, login persistence, retries, and edge cases ⚜ Design clean Node.js/Python automation workflow architecture ⚜ Implement logging for tracking sync success/fail events ⚜ Ensure scalable base for future SaaS expansion if needed I have solid experience in browser automation, scraping, and workflow bots using Node.js and Python. I’ve worked on similar scheduling and DOM-driven automation tools where reliability and session handling were key. I focus on clean, maintainable logic rather than heavy UI layers. Plan is to first map both platforms DOM structure, then build event detection for bookings, followed by secure session handling and sync engine with retry logic. I’ll test across edge cases to ensure stability. Would be happy to discuss platform details and start quickly. Warm Regards, Farhin B.
€756 EUR in 10 days
6.6
6.6

Hello Greetings, Thanks for job posting! I’m an experienced automation developer with strong expertise in Playwright, Puppeteer, Node.js, and browser workflow automation. I can build a reliable proof-of-concept tool that detects new bookings in Platform A and automatically creates matching unavailable slots in Platform B with clean, stable automation logic. My preferred stack for this PoC is Playwright with Node.js due to its reliability, session handling capabilities, and cross-browser stability. The workflow will include DOM monitoring, retry/error handling, session persistence, and structured logging to ensure dependable synchronization between both booking systems. I have worked on browser automation projects involving scheduling systems, web scraping, and workflow synchronization. Estimated timeline for the PoC is approximately 9–12 days depending on platform complexity and authentication flow. I’m ready to start immediately and would be excited to support the long-term evolution of this project if the PoC succeeds. looking forward to collaborating with you on this project and start asap! Thanks Santosh
€1,350 EUR in 15 days
6.9
6.9

Hi there. I’d recommend Playwright + Node.js for this proof of concept because it is stable, supports persistent sessions, and works well for booking/calendar automation. My approach: • Log into both platforms using stored browser sessions • Monitor Platform A for new bookings • Extract start time, end time/duration, and staff member • Match staff/calendar rules in Platform B • Create a busy/unavailable block automatically • Add retries, error logging, and duplicate-prevention logic I’m available to start immediately and can keep the build lightweight, reliable, and easy to extend later. Best regards, Jonathan
€1,000 EUR in 10 days
5.5
5.5

hi, i have reviewed the details of your project. yes, this is something i can build as a clean and reliable proof of concept. i have experience with browser automation using node.js and python with tools like playwright and puppeteer. i have built automation flows that handle calendar data, dom parsing, session handling, and background syncing between web platforms. for your project, i will create a lightweight automation script that watches platform a for new bookings, extracts the time, duration, and staff info, then automatically creates matching unavailable blocks in platform b. the focus will be on stable logic, proper error handling, retries, and consistent sync behavior rather than ui or extra features. let’s schedule a quick meeting to discuss the two platforms and flow in detail. after that, you can decide comfortably. i will also share similar automation work during the chat. mughiraa.
€1,125 EUR in 7 days
5.5
5.5

When two booking systems stay manually aligned, the real risk is silent conflicts — missed availability updates, duplicate bookings, or sessions failing after login refreshes. For this PoC, the priority should be stable detection and predictable sync behavior rather than broad feature coverage. I’d build this with Playwright + Node.js. The workflow would monitor Platform A for newly created bookings, normalize time/staff data, then create matching busy blocks in Platform B with retry handling and session recovery built in. I’d also add lightweight logging so failed syncs are traceable without adding unnecessary infrastructure. I’ve built automation-heavy SaaS workflows in Bubbl (Vue/Nuxt/Express) where reliability and state handling mattered more than UI complexity. For a focused PoC, this is realistically a 5–7 day implementation including testing against session expiry and booking edge cases. Q1: Are both platforms accessible only through browser UI, or does either expose APIs? Q2: How should conflicts be handled if Platform B already contains a booking/block? Q3: Will the automation run continuously on one machine/server or manually on demand?
€1,000 EUR in 7 days
5.7
5.7

(Delivery in 5-7 days) With over 14 years of experience as a Full Stack Developer, I have hands-on expertise in many technologies that align perfectly with your project's requirements. I'm proficient in multiple languages including JavaScript, Node.js, and Python, which are among your preferred technology stack for the PoC. My strong background in automation, DOM parsing, session handling and error handling will help me create a clean and reliable automation tool for you. I have a knack for building intelligent and scalable applications which is exactly what you're looking for - a lightweight automation tool that effectively synchronizes appointments between two browser-based booking/calendar platforms used by appointment-independent businesses. My deep expertise in browser automation will enable me to create an efficient solution whilst prioritizing reliability and clean logic; streamlining the whole process without duplication or overcomplication.
€1,500 EUR in 5 days
5.4
5.4

With my eight years of experience developing web and software solutions, I can provide an excellent match for your PoC project. My expertise in relevant technologies such as Node.js, JavaScript, and Python, combined with my skills in browser automation, DOM parsing, session handling, and error management makes me the best person for this task. I've created several automation tools that demystified complex functionalities into simple yet robust solutions which matches perfectly to the discreet nature of this task. Furthermore, given my broad experience with API integration and web scraping techniques, I’m confident that I can efficiently build a tool that will effectively synchronize bookings between Platform A and Platform B without any data leakage or unsolicited interactions. Lastly you can count on effective communication with timely feedbacks as an essential part of successful collaboration. Considering all these factors,I believe that if given the opportunity I can prove to be a great asset for your project. I am greatly looking forward to work together and turn this project into a long-term association between us.
€1,000 EUR in 10 days
5.5
5.5

Good to see this project, I will build the PoC in Node + Playwright (headless, server-side). It polls Platform A for new bookings, reads start, end, duration, staff, and creates a matching busy block in Platform B. Two pieces decide whether the PoC stays reliable. Idempotency: a SQLite table mapping platform_a_booking_id to platform_b_block_id, so re-runs never duplicate blocks and deletions sync. Selector strategy: data-attributes and ARIA roles over CSS classes with fallback chains. Failed actions queue with backoff retry. Past Playwright builds I will share in chat. Questions: 1) Which platforms (A and B specifically)? 2) Polling cadence (every minute, 5 minutes)? 3) Single-tenant or multi-tenant from PoC? Looking forward to discussing further. Best regards, Faizan
€900 EUR in 7 days
5.5
5.5

Hello there, I hope you are doing well. I am an experienced browser automation developer focused on lightweight, reliable Proofs of Concept. I work with Playwright and Puppeteer, with strong Node.js and Python skills, delivering clean automation flows with solid session handling, DOM parsing, and robust retries, exactly what you need to synchronize availability between two browser-based calendar platforms without touching customer data. In similar work, I’ve built automation that watches Platform A for new bookings, extracts start/end times and staff assignments, and creates corresponding busy blocks on Platform B. The implementation centers on a small, deterministic automation loop, clear logging, error handling, and minimal dependencies, keeping the PoC tight and easy to extend if needed. I can deliver a focused PoC using your preferred stack, with a simple state-machine approach to map bookings to Platform B blocks and lightweight error recovery. Timeline: roughly 7-14 days, with deliverables including reliable automation scripts and documentation for handoff. Please feel free to contact me so we can discuss more details. I am looking forward to the chance of working together. Best regards, Billy Bryan
€750 EUR in 15 days
5.1
5.1

Hello, I've worked on many browser automation projects and I can adapt to the stack that fits the job best. Once I know the targets, I can tell you the best implementation path and a realistic timeline.
€750 EUR in 7 days
5.1
5.1

Hi, I’m Karthik with 15+ years of experience in browser automation, workflow automation, Node.js/Python development, and scalable integration systems. Your PoC is very achievable, and I can build a clean, reliable automation flow focused specifically on booking synchronization between the two platforms. Preferred stack: ✔ Playwright + Node.js (recommended for stability & modern browser handling) ✔ Alternative: Puppeteer or Python automation if preferred Technical approach: 1. Secure session/login handling for both platforms 2. Detect new bookings/events in Platform A 3. Parse booking details (time, duration, assigned staff) 4. Create unavailable/busy block automatically in Platform B 5. Add retry logic, logging & failure handling for reliability 6. Lightweight modular architecture for future scaling Experience includes: • Browser & workflow automation • DOM scraping/parsing • Session persistence & authentication flows • Calendar/scheduling integrations • Automation dashboards & bots • Chrome extension automation support Deliverables: • Working PoC automation tool • Source code with documentation • Error handling & retry mechanism • Setup/run instructions Estimated timeline: ✔ Initial PoC: 5–7 days depending on platform complexity I focus on stable automation logic rather than quick hacks, ensuring the workflow remains maintainable for future expansion into a larger product. Available to start immediately. — Karthik
€1,150 EUR in 7 days
5.4
5.4

Argostoli, Greece
Payment method verified
Member since Jan 8, 2025
$750-1500 USD
₹1500-12500 INR
$5000-10000 AUD
$30-250 USD
$25-50 USD / hour
$15-25 USD / hour
₹600-7000 INR
₹50000-70000 INR
$30-250 USD
$30-250 USD
₹12500-37500 INR
₹12500-37500 INR
₹1500-12500 INR
€8-80 EUR
$30-250 USD
$30-250 USD
₹12500-37500 INR
₹75000-150000 INR
$250-750 USD
$750-1500 USD