JavaScript Security Software Developer, Fraud (Remote)

bet365
Leigh, England
10 months ago
Applications closed

Related Jobs

View all jobs

Backend Engineer III - Managed Services

CrowdStrike United States
Hybrid

Backend Engineer III - Managed Services

Hybrid

Sr. Backend Engineer - Managed Services

Hybrid

Sr. Backend Engineer - Managed Services

CrowdStrike United States
Hybrid

Senior Software Engineer (Python)

Darktrace Cambridge, CB2 3BJ, United Kingdom

Software Engineer (Python)

Darktrace Cambridge, CB2 3BJ, United Kingdom
Posted
1 Jul 2025 (10 months ago)

Who we are looking for

A JavaScript Security Software Developer, who will safeguard the Business by uncovering exploits, architecting robust defences, and collaborating with teams to thwart sophisticated reverse engineers.


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 and interest in JavaScript security, threat modelling, developing anti-bot measures and creating robust obfuscation flows.
  • 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.
  • Skilled in TypeScript and JavaScript for secure, high-performance web applications.
  • 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.


By applying to us you are agreeing to share your Personal Data in accordance with our Recruitment Privacy Policy - http://www.bet365careers.com/privacypolicy.pd

Industry Insights

Discover insightful articles, industry insights, expert tips, and curated resources.

Where to Advertise Cyber Security Jobs in the UK (2026 Guide)

Advertising cyber security jobs in the UK requires a different approach to most technical hiring. The candidate pool is small, heavily vetted and in high demand across government, financial services, critical national infrastructure and the private sector simultaneously. Many of the strongest candidates hold active security clearances, are not actively job-searching through general platforms, and move primarily through specialist networks and trusted referrals. General job boards reach a broad audience but lack the specificity that security professionals expect. Specialist platforms, government-affiliated channels and cleared candidate networks each serve a different part of the market. This guide, published by CybersecurityJobs.tech, covers where to advertise cyber security roles in the UK in 2026, how the main platforms compare, what employers should expect to pay, and what the data says about hiring across different role types.

Cyber Security Jobs UK 2026: What to Expect Over the Next 3 Years

Cyber security is one of the few sectors where demand for talent has never once dipped. Every major technological shift of the past decade — cloud migration, remote working, AI adoption, the proliferation of connected devices — has expanded the attack surface that security professionals are expected to defend. And every expansion of that attack surface has generated more jobs. But the cyber security jobs market of 2026 is not simply a larger version of what it was three years ago. It is a structurally different market. The threats have evolved, the technologies used to combat them have changed, the regulatory environment has tightened considerably, and the roles being created reflect all of that. A job seeker who understands only the cyber security landscape of 2023 is already working with an outdated map. The candidates who will thrive over the next three years are those who understand where the sector is heading — which specialisms are attracting the most investment, which technologies are reshaping defensive and offensive security practice, and how the definition of a cyber security professional is broadening well beyond the traditional image of a network defender in a SOC. This article breaks down what the UK cyber security jobs market is likely to look like through to 2028 — covering the titles emerging right now, the technologies driving employer demand, the skills that will matter most, and how to position your career ahead of the curve.

Penetration Tester Jobs in the UK: What Employers Actually Want in 2026

The demand for skilled professionals in cyber security has never been higher, and penetration testers sit at the very heart of this rapidly evolving industry. As organisations across the UK continue to digitise their operations, protect sensitive data, and defend against increasingly sophisticated threats, the need for ethical hackers has grown dramatically. If you are considering a career in this field—or looking to advance within it—it is essential to understand what employers are really looking for in 2026. This guide breaks down the current expectations, required skills, certifications, and practical experience that can help you stand out in a competitive job market.