JavaScript Security Software Developer, Fraud (Remote)

JR United Kingdom; Woking; Remote; GBP 45,000 - 70,000; Full time

Job summary

A leading company seeks a security specialist to protect its web platforms from sophisticated threats. The ideal candidate will design advanced anti-tampering systems and leverage their skills in vulnerability discovery. This role requires a deep understanding of security techniques and effective teamwork.

Qualifications

• Experience in architecting and implementing advanced security features.
• Strong understanding of virtualization and bytecode interpreters.
• Proven ability to work effectively with cross-functional teams.

Responsibilities

• Identifying and analyzing exploits and vulnerabilities.
• Designing and implementing advanced anti-tamper systems.
• Mentoring junior developers on security best practices.

Skills

Security feature implementation

Low-level systems programming

Web development

Cryptography and encryption

Vulnerability discovery

Attention to detail

Job description

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Client:

bet365

Location:

woking, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

11

Posted:

06.06.2025

Expiry Date:

21.07.2025

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Job Description:

Who we are looking for

Within the fraud site defence team, you will be a key defender at the forefront of our security battle on our Web platform.

You will face sophisticated hackers daily by uncovering and analysing exploits, vulnerabilities and automation mechanisms.

You will design and implement cutting-edge anti-tamper and anti-cheat systems across our website, with hand-offs to our companion apps for additional security checks, whilst ensuring robust data integrity and innovative client hardening.

This role will challenge you to leverage your programming, reverse engineering, and obfuscation techniques, to keep the Company one step ahead in today’s dynamic threat landscape.

Preferred Skills, Qualifications and Experience

• Experience in architecting and implementing advanced security features, anti-tamper, and robust defence mechanisms.
• Understanding of low-level systems programming.
• Strong understanding of virtualisation and bytecode interpreter.
• Expertise in web development, with additional exposure to native app security to enable cross-platform solutions.
• Strong knowledge of cryptography, encryption algorithms, hashing and secure key management practices.
• Passionate for uncovering vulnerabilities and staying ahead of potential attackers.
• Proven ability to work effectively with cross-functional teams, to translate complex security challenges into actionable solutions.
• Exceptional attention to detail paired with a forward-thinking approach to enhancing security measures.

Main Responsibilities

• Identifying, analysing, and reversing engineering exploits, vulnerabilities, and cheat mechanisms to devise effective countermeasures.
• Designing and implementing advanced anti-tamper and anti-cheat systems across the Company website.
• Implementing robust detection and prevention systems to identify and block unauthorised automation, including bots, macros, and scripting tools, preserving the integrity of user interactions.
• Implementing measures that guarantee data in the website remains unspoofed and untampered.
• Pioneering new methods from memory protection to code obfuscation, to pre-empt and mitigate potential exploits.
• Continuously analysing emerging threats and hacker behaviour to refine and adapt security strategies.
• Providing mentorship and knowledge sharing to junior developers, fostering a proactive security culture.
• Creating and maintaining tools and scripts for real-time detection and response to suspicious activities.

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