Freelance projects

Freelance projects

Web tool development programmer (Node.js + Puppeteer)

Javascript and Typescript — incorrectly specified categories?

789 USD

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We are looking for an experienced developer to enhance and optimize an advanced web page scanning system. The project focuses on cybersecurity threat analysis, automation, and optimal server resource utilization.

Optimization tasks (to improve):

1. Browser pool management (Puppeteer):
Currently, each user is assigned a separate browser instance. The system needs to be optimized so that a maximum of 20 instances are active, and subsequent requests are queued. The user should receive a message with the estimated waiting time for the scan in case of overload.

2. Cleaning Puppeteer temporary directories:
Scans generate a large number of temporary files. Previous attempts to clean them caused active sessions to be interrupted. A flexible and safe mechanism needs to be implemented that removes old data without disrupting current processes.

Implementation tasks:

1. Content Security Policy (CSP):
Implementing CSP in the scanner environment to protect against XSS, SQLi, and other attacks while processing unknown URLs. CSP must be designed not to affect the quality of scanning and not to generate false positive results. Process isolation will be required.

2. Support for the TOR network:
Adding the ability to scan resources available through TOR. This requires the installation of appropriate dependencies and configuration of proxies and ports to connect to the hidden network.

3. Vulnerability recognition (based on CVE):
Integration with public CVE databases. During scanning, the system will match known vulnerabilities to recognized technologies (provided that the scan does not analyze internal infrastructure, only publicly visible elements).

4. Generating favicon hash:
Adding functionality to generate a hash of the favicon for quick identification of cloned sites or phishing.

Planned functionalities (product development):

1. One-click Threat Alerting:
An automatic threat report generation system (Twitter, email, Telegram). Ready-to-publish templates with metadata – compliant with standards.

2. Detection of testing environments (staging):
Automatically identifying domain names characteristic of testing environments used by criminals (e.g., dev., staging., panel.).

3. Intelligent redirect tracking:
Visualization of redirect chains. Helps quickly identify phishing, malware, and other hidden links.

5. OCR for screenshots:
Built-in OCR for extracting text from phishing screenshots (email addresses, account numbers, cryptocurrency wallets). Ability to quickly copy detected data.

6. Copy-Paste Analyzer:
A module that allows pasting the content of a suspicious message and automatically extracting IOC: IP, URL, hash, etc.

7. JS Crawler:
Automatic analysis of JS files in search of URLs and endpoints. Generating a simple dependency tree.

8. Recursive URL Hunter:
Recursive link tracking from HTML and JS, with depth limitation (e.g., up to 3 levels), with a visual graph of connections.

9. Dynamic Redirect Tracker:
Tracking HTTP statuses (301, 302, JS redirect) and building a redirect path in a clear format.

10. Payload Hunter:
Detecting embedded executable files (.exe, .apk, .zip, etc.) in HTML/JS and the path to them.

11. JS Deobfuscator:
A tool for deobfuscating JavaScript – detects base64, eval, etc., with highlighting of detected URLs.

12. URL Extractor:
Exports all links from HTML and JS files with one click – useful for manual analysis or export.

If you have experience with Node.js, Puppeteer, web application security, and enjoy working on high-impact projects, get in touch. We are looking for someone who not only knows code but also understands the logic of offensive and defensive tools in cyberspace.

Proposals 12

Andrey K.

1 296 1

Budget: 3000 PLN Deadline: 1 day

Hello. I have experience with Node.js/Puppeteer.I'm ready to cooperate

Yevgeniy Rybin

0 0

Projects -
Rating -
Rating 561

Budget: 35000 PLN Deadline: 90 days

Hello!

My name is Evgeny, and I have been professionally developing mobile applications, websites, web services, and web applications for 7 years.

*The cost is indicated for 1 hour of work. To provide a more detailed price, I would like to connect/call and discuss the details.

- You can review my portfolio, feedback, and awards in my profile.

Why should you choose me?
- I have taken 1st and 2nd places in international championships and competitions in the IT field
- I have verified video testimonials and letters of appreciation
- I am always available, honest, and reasonable
- I work under a contract
- I lead my own development team

I would be happy to talk to you in more detail about the project.

Yurii T.

0 0

Projects -
Rating -
Rating 158

Budget: 3000 PLN Deadline: 14 days

Hello!

I have extensive experience working with Puppeteer, web application security, and browser automation. I have a deep understanding of how websites, servers, and browsers work, which allows me to optimize scanning performance while maintaining a high level of security.

Why me?
✔ Puppeteer Optimization – Efficient management of the browser pool, maintaining sessions, and cleaning up resources.
✔ Security Expertise – Implementation of CSP, handling scanning through the TOR network, integration with CVE databases.
✔ Performance and Scalability – Optimization of temporary file management and utilization of system resources.
✔ Automation and Analysis – Experience with OCR, JavaScript analysis, URL extraction, and threat detection.

Related projects and experience:

- Creating high-performance web automation solutions using Puppeteer.
- Optimizing browser-based scanners to handle multiple simultaneous users.

I would be happy to discuss how I can help optimize your system. Feel free to contact me!

Bohdan Bielashenok

6 0

Budget: 3000 PLN Deadline: 10 days

Hello!
I am interested in your offer and intend to join the team of professionals.

A LITTLE ABOUT ME:
For many years, I have specialized in creating SPA applications, many of which are CRM/ERP systems and administrative panels.
At one time, I was involved in creating applications based on Microsoft ecosystem tools.

Examples of such systems - Behance

I hope for fruitful cooperation in the future!

Andzhey R.

8 0

Budget: 3000 PLN Deadline: 1 day

Hello! We are ready to take on the optimization and development of your web page scanning system. We will optimize the browser pool, set up secure temporary data clearing, integrate CSP, support TOR, detect CVE, and other functionalities. We have experience with Node.js, Puppeteer, and web security. We are ready to discuss the details and start working!

Anatolii Poboiskyi

0 0

Projects -
Rating -
Rating 316

Budget: 3000 PLN Deadline: 12 days

Hello Adam,
I’m glad to connect with you! With my experience, I believe I can deliver excellent results for this project. I’d love to chat further about it.
Wishing you great success in your business, and I’m committed to giving my best effort.
Thank you!

Oleg Zhilin

10 0

Projects 10
Rating -
Rating 412

Budget: 50000 PLN Deadline: 100 days

Good evening, I have experience in a similar project, so you better choose me.
I am a pragmatic programmer; if the work is done but the engine is sputtering, I suffer.
I love everything of high quality, and I do the same.
Sincerely, Oleg.

The list does not show proposals concealed by the client or freelancer with a Plus profile, as well as proposals violating rules

Adam A
Warszawa, Poland

Projects -
Rating -
Rating 65

Web tool development programmer (Node.js + Puppeteer)

Optimization tasks (to improve):

Implementation tasks:

Planned functionalities (product development):

Andrey K.

Yevgeniy Rybin

Yurii T.

Bohdan Bielashenok

Andzhey R.

Anatolii Poboiskyi

Oleg Zhilin

Proposals are currently absent

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