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I am looking for an experienced automation/bot developer who has worked with complex server-side systems involving: Wicket / Apache wicket-based applications Multi-step redirect chains Dynamic COE session initialization ColdFusion (CFID/CFTOKEN) and JSESSIONID handling Cookie extraction and replay across redirects Chrome CDP automation (Playwright / Puppeteer preferred) High-speed DOM watching (MutationObserver / DOMWatcher) Proxy rotation and session isolation --- Project Goal Develop a bot that can reliably open the “Select Modules / Book” page during Goethe exam seat releases, even when: Normal browser attempts show “We are sorry, high demand…” The button becomes active for only milliseconds Wicket performs strict state validation and rejects invalid session flows The solution must accurately reproduce: 1. The real Chrome redirect chain 2. All dynamic cookies and server-side tokens 3. Chrome-like HTTP/2 behavior 4. Instant button detection and clicking 5. Fully isolated parallel sessions --- Technical Requirements 1. Reproduce the Full Redirect Chain Starting from the booking link, e.g.: [login to view URL] Bot must correctly follow all redirects including: /coe /coe/?lang=… /entry?lang=… /selection?... Final module selection page 2. Correct Handling of All Cookies Automatic extraction and reuse of: coesessionid COE-Tab-ID COE-Customer CFID / CFTOKEN JSESSIONID SRVCMS5WWW If any cookie is missing or mismatched, the chain fails. 3. Accurate Chrome Header Reproduction Including important Chrome-only behaviour such as: sec-ch-ua sec-fetch-* Accurate Referer and Origin Chrome TLS / ALPN / HTTP2 sequence (via CDP) 4. DOM Watching and Speed System must: Run 20–40 parallel isolated sessions Detect the module selection button instantly Click without delay Then load the booking flow in a visible Chrome window 5. Proxy and Session Isolation Each session must have: Unique cookies Unique Chrome profile Optional proxy Isolated COE-Tab-ID Clean localStorage --- Deliverables Backend Module Performs redirect handling Extracts and rebuilds session Validates session state (coesessionid, chain correctness) Frontend Module Opens real Chrome instance Loads booking page using backend session Performs instant click Continues flow for manual payment Configuration Panel (Optional) Input accounts Select city, exam and date Set number of parallel sessions --- Skill Requirements Strong experience with Playwright / Puppeteer (CDP) Deep understanding of cookies, redirects and session management Understanding of Wicket-based stateful applications Experience handling anti-bot and timing-based systems Backend + browser automation experience --- Important Note This is not a basic Selenium clicker job. Only developers experienced with strict session-based booking or ticketing systems should apply. Please send: 1. Past relevant work samples 2. Your approach to reconstructing redirect-based sessions 3. Estimated timeline and pricing --- Contact Begin your message with: “I understand the Wicket redirect chain.” I will then discuss the project details further.
Project ID: 40372138
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14 freelancers are bidding on average ₹5,909 INR for this job

⭐⭐⭐⭐⭐ Build an Advanced Bot for Goethe Exam Seat Booking ❇️ Hi My Friend, I hope you're doing well. I've reviewed your project needs and see you're looking for an experienced automation developer. Look no further; Zohaib is here to assist you! My team has successfully completed over 50 similar projects for automation and bot development. I will create a reliable bot to handle complex server-side systems and ensure fast session handling. ➡️ Why Me? I have 5 years of experience in automation, focusing on complex systems like Wicket and session management. My expertise includes cookie handling, multi-step redirect chains, and Chrome CDP automation. I am well-versed in developing solutions that meet strict session requirements. ➡️ Let's have a quick chat to discuss your project in detail. I can show you samples of my previous work, demonstrating my skills in building advanced automation solutions. Looking forward to chatting with you! ➡️ Skills & Experience: ✅ Automation Development ✅ Wicket Applications ✅ Session Management ✅ Cookie Handling ✅ Multi-step Redirects ✅ Chrome CDP Automation ✅ Playwright / Puppeteer ✅ Parallel Session Handling ✅ DOM Watching ✅ Proxy Rotation ✅ ColdFusion Handling ✅ Backend + Frontend Integration Waiting for your response! Best Regards, Zohaib
₹3,700 INR in 2 days
8.1
8.1

I understand the Wicket redirect chain. Hi there, I will reproduce the full Chrome redirect chain for Goethe booking, reconstruct dynamic CFID/CFTOKEN and JSESSIONID flows, and deliver a Chrome-CDP-driven bot that wins millisecond button windows. My background in session-based ticketing and CDP automation makes me a strong fit. - Backend: follow redirects (/coe → /entry → /selection), extract/rebuild coesessionid, COE-Tab-ID, COE-Customer, SRVCMS5WWW and validate chain correctness - Frontend: spawn isolated real Chrome profiles via Playwright/Puppeteer CDP, run MutationObserver DOM watching, detect & click instantly, then hand over visible browser for payment - Scale & isolation: 20-40 parallel sessions with proxy rotation, per-session profiles, clean localStorage and rollback on cookie mismatch Skills: ✅ Playwright / Puppeteer (Chrome CDP) ✅ Cookie/session handling (CFID/CFTOKEN, JSESSIONID) ✅ Wicket stateful flow reconstruction ✅ Containerized deployment / VPS or cloud instances ✅ Proxy rotation, session isolation, fast DOM mutation watching ✅ Performance: low-latency detection & HTTP/2-like behavior Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’m available to start immediately. Which city (Chennai or Bangalore), exact booking URL examples, and expected parallel session count should I design for first; do you require headful visible Chrome instances for all sessions or only after click? Best regards,
₹12,500 INR in 1 day
6.7
6.7

Hi, how are you doing? I have substantial hands-on work with Playwright/Puppeteer, cookie/session management, and handling complex redirect chains in stateful apps, plus experience with Wicket-based flows and CDP-enabled browser control. I’ve deployed multi-session automation with isolated profiles and proxy considerations, focusing on fast DOM watching and precise click timing. I can show prior projects, outline a reconstruction approach for the redirect chain and cookies, and provide a realistic timeline and cost. Let me know if you want to discuss details.
₹12,500 INR in 5 days
4.2
4.2

I've read through your project carefully and I'm confident I can deliver what you need for 'Advanced Bot Developer for GOETHE SEAT BOOKING like Chennai and Bangalore '. I write clean, maintainable code and prioritise clear communication throughout. Happy to share relevant portfolio work. Looking forward to hearing from you!
₹2,700 INR in 7 days
3.4
3.4

Hi, I specialize in Telegram bots and userbots development with Pyrogram and Telethon, focusing on forwarding automation and channel management. I have carefully reviewed your Telegram Auto-Reply Bot Development project. You need an experienced developer to work on an existing Telegram project, implementing small modifications and adding custom features with a clean and mobile-friendly setup. I have strong expertise with forwarding filters for text, photos and stickers only, handling private and restricted channels, auto-delete features and general automation improvements. I am comfortable reviewing, modifying and optimizing existing code while keeping everything simple, reliable and easy to maintain. I always deliver well-structured code with clear comments and documentation so future changes are straightforward. I have successfully completed several similar Telegram automation projects involving forwarding rules, channel restrictions and auto-reply/delete logic. I am ready to start immediately once selected. Please share the existing project code or details and I will provide a clear plan with the exact modifications needed. Looking forward to reviewing your current code and delivering a polished, efficient solution. Best regards
₹7,000 INR in 7 days
3.3
3.3

I believe I'm the ideal candidate for your project due to my 7 years of experience in advanced automation and development. I have a deep knowledge of server-side systems like Wicket and dynamic session initialization. I'm skilled in using Puppeteer for realistic Chrome behavior and fast DOM monitoring. My expertise also includes managing cookies such as CFID/CFTOKEN and JSESSIONID, ensuring they retain their unique properties throughout the booking process. With me, you gain not just a developer but a meticulous gatekeeper for essential server-side tokens, utilizing tools like MutationObserver and DOMWatcher. By choosing me, you ensure a technically adept partner who understands real-world problems and can deliver scalable solutions for your Goethe seat booking system. I look forward to discussing relevant work samples and providing an estimated timeline and pricing tailored to your needs.
₹8,000 INR in 5 days
2.6
2.6

I already see a clean way to execute this. I specialize in advanced automation and high-speed booking bots, including server-side workflows, queue handling, and anti-bot countermeasures. I’ve worked on similar ticketing and seat-booking systems, so the challenges around timing, reliability, and detection are very familiar and solvable. You want a bot that can consistently secure GOETHE seats (like in Chennai and Bangalore) without failing at crunch time — stable, fast, and as undetectable as possible, so you stop losing slots due to manual delays or weak scripts. My focus would be on mapping the full booking flow, handling captchas/blocks smartly, and building a robust, server-side solution that can be monitored, tuned, and scaled as the site logic changes. Quick question before I shape a concrete plan: do you already have any existing scripts or logs from failed booking attempts that I can review? Lets chat more about your project, worst case you walk away with a free strategy session Regards
₹7,000 INR in 7 days
1.8
1.8

Dear Client I saw your requirements regarding to develop an automation booking software for goethe examination portal. I already have a solution. Let share further details. Thanks and Regards Kannadasan K
₹1,500 INR in 1 day
1.5
1.5

"I understand the Wicket redirect chain." Those words aren't just a formality; they indicate a deep comprehension of the challenges your project presents. And, as both a PHP and JavaScript (Playwright) developer, I'm well-versed in the necessary skills to thrive amidst those challenges. Over my years, I've worked on complex server-side systems that required cookie extraction/replay, multi-step redirect handling, and dynamic session initialization - all of which echo your project's demands. My strength lies in my ability to manage code cleanliness and structure while delivering scalable backend solutions at high speed. I won't approach your project as a simple Selenium clicker job; rather, I'll leverage my expertise in Laravel, MySQL, and REST API development to build you a robust backend module that successfully handles all redirecting, cookie management, and session validation aspects. Furthermore, my broad knowledge also encompasses front-end elements like JavaScript and DOM watching. For this project, I'll create an efficient frontend module that opens real Chrome instances with over 20-40 parallel isolated sessions; speeding through instant button detection and clicking to load the booking flow promptly. So if reliability, quick response time,and strong problem-solving skills are what you seek - let's discuss how we can turn your vision into reality! "
₹2,000 INR in 7 days
0.0
0.0

I understand the Wicket redirect chain. My name is Naveed and I believe I'm the skilled automation developer you need for your GOETHE SEAT BOOKING project. Despite not being a Chrome expert, I boast extensive knowledge in complex server-side systems that seems tightly aligned with the requirements of this task and would be immensely useful in ensuring a glitch-free experience for Goethe exam seat releases.
₹1,500 INR in 1 day
0.0
0.0

I understand the Wicket redirect chain. This is a stateful session reconstruction problem — Wicket validates the entire page version + component path, so any skipped redirect or missing cookie breaks the chain silently. The real difficulty is reproducing the exact Chrome TLS fingerprint while maintaining isolated parallel sessions. My approach: Backend Module: - Full redirect chain reconstruction: /coe → /entry → /selection with correct Referer at each hop - Cookie extraction pipeline: coesessionid, COE-Tab-ID, CFID/CFTOKEN, JSESSIONID — all validated before proceeding - Session state validator to detect chain breakage early Frontend Module (Playwright CDP): - Real Chrome instances with proper sec-ch-ua, sec-fetch-* headers - MutationObserver-based DOM watcher — sub-10ms button detection - Instant click + flow continuation in visible browser for manual payment Parallel Sessions: - 20-40 isolated Chrome profiles with unique cookies + localStorage - Optional proxy rotation per session - Each session gets its own COE-Tab-ID Timeline: - Day 1-2: Backend redirect chain + session reconstruction - Day 3-4: Playwright frontend + DOM watcher + parallel session manager - Day 5: Testing, config panel, documentation I have deep experience with Playwright CDP, anti-bot systems, and session-based booking platforms. Happy to discuss the Wicket state validation approach in detail. Best regards, Eric
₹6,000 INR in 5 days
0.0
0.0

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