Contact person: Business Client

Phone:Show

Email:Show

Location: Kochi, India

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"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



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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




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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



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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



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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



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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




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Contact

Begin your message with:
“I understand the Wicket redirect chain.”

I will then discuss the project details further." (client-provided description)