Poland
EuropeFraud Prevention Engineer | Mid-Senior | NordVPN
2 нед. назад
19k–30k USD / yearPolandEuropeSeniorRemote
cloudflarewafbot managementrate limitingscripting
Responsible for owning the technical side of fraud prevention in the Payments team, including investigation, defense building, and technical roadmap management.
Обязанности
- We're hiring a Fraud Prevention Engineer to own the technical side of fraud prevention in our Payments team. You'll sit between fraud analysts and engineering — investigating how attacks happen, building defenses, and translating between both worlds. Think: root cause analysis, Cloudflare/Turnstile optimization, technical roadmap ownership, and enabling analysts with deeper technical capabilities. This is the first hire in what will become a dedicated fraud prevention engineering function.
- Investigate fraud attacks end-to-end — identify vectors, perform root cause analysis at the infra and application level, implement countermeasures
- Configure and optimize Cloudflare (WAF, bot management, rate limiting, Workers) and Turnstile challenge flows
- Act as the technical bridge between fraud analysts, engineering, and product teams
- Analyze multiple attack vectors, plan and prioritize technical fraud prevention tasks on the roadmap
- Build tooling, scripts, and queries that elevate the fraud analyst team's technical capabilities
- Maintain deep understanding of payment flows (authorization, 3DS, tokenization) and where vulnerabilities sit
Требования
- 3+ years in fraud prevention, security engineering, or a technical role in payments
- JavaScript/TypeScript — comfortable with Cloudflare Workers, Turnstile, and browser-side challenge flows
- Backend understanding — can navigate server-side codebases, trace API flows, and read system logs
- Strong SQL — joins, window functions, large transaction datasets
- Hands-on Cloudflare experience (WAF, bot management, rate limiting) or similar edge/CDN security platforms
- Ability to communicate technical findings to non-technical stakeholders and vice versa
Будет плюсом
- Python scripting for automation and data analysis
- Experience with log/observability tools (ELK, Grafana, Datadog)
- Background in application security or threat modeling
- Familiarity with fraud platforms (Forter, Riskified, Sift) or in-house rule engines
- Git workflow, CI/CD basics
Другое
- If you’re a curious problem-solver who carves their own path, join the team behind Threat Protection Pro, the NordLynx protocol, and the fastest VPN on the planet—tools that put privacy, security, and control back in people’s hands.
- Your impact? Helping millions take back control of their online security, privacy, and data.
- Work alongside global experts to build world-leading cybersecurity tools, impacting millions of users around the world.
- Boost your skills via our extensive training programs (online and offline) & other resources. Benefit from mentorship and career-switch opportunities to grow within the company.
- Recharge with a change of scenery – choose work from any location when you feel a need to power your creativity and drive.
- Fuel your active lifestyle with online workouts led by our Physical Well-Being experts. Unlock a variety of sports and wellness facilities, like gyms, swimming pools, and fitness classes, with the Multisport card.
- Nurture your mind with free psychologist consultations, dedicated mental health events, and premium access to top-rated wellness apps like Calm, Headspace, and Mindletic.
- Receive private health insurance giving you peace of mind for your health needs.
- Celebrate life’s big moments with special gifts from us on your birthday, anniversary, and other major events, such as weddings or the arrival of a new family member.
- Experience iconic celebrations, team-buildings, and knowledge-sharing events, nurturing bonds that fuel our success.
- Embark on a legendary company getaway abroad, filled with exciting activities, live concerts, engaging workshops, and epic time together.
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