Logo for Nord Security

Fraud Prevention Engineer | Mid-Senior | NordVPN

Role overview

Qualifications

  • 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
  • Strong SQL — joins, window functions, large transaction datasets
  • Hands-on Cloudflare experience (WAF, bot management, rate limiting) or similar edge/CDN security platforms

Responsibilities

  • 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

About the company

Nord Security logo

Nord Security

Cybersecurity

Nord Security is one of the world’s leading providers of digital security and privacy solutions for businesses and individuals. We are a home for advanced security solutions that share the Nord brand and values. Today, our products are used by millions of customers worldwide and praised by all the major cybersecurity experts and top media outlets. Since 2012, we have been creating and building award-winning products: NordVPN - the fastest VPN on the planet, built to protect your online traffic and privacy with next-generation encryption. NordLayer - an adaptive network access security solution for modern businesses, helping organizations to fulfill scaling and integration challenges. NordPass - a password manager designed with the user in mind, from simplicity to security. Built using zero-knowledge encryption. NordStellar - a threat exposure management solution that enables you to detect and respond to cyber threats targeting your company — before they escalate. NordLocker - a powerful end-to-end encryption tool for safely storing and sharing files. Comes with secure cloud storage. Saily - a global eSIM service that cuts costs, saves time, and helps travelers stay connected around the world. Our community of cybersecurity experts, software developers, engineers, data analysts, and other tech professionals share one common goal – create a safe cyber future for everyone. Explore our open positions here: https://nordsecurity.com/careers Or refer a friend or colleague: https://nordsecurity.com/referrals Learn about our Privacy notice for recruitment candidates here: https://bit.ly/3mJFoAy

Company details

Company typeLarge
IndustryCybersecurity
Company size1001 - 5000

Your match analysis

See how your profile stacks up against this role.

We compared the job requirements to your profile to show where you're strong and where you fall short.

Job description

The world’s most advanced VPN, and a whole lot more.

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.

About the Role

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.

Main Responsibilities

  • 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

Core Requirements

  • 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

Bonus points

  • 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

What We Offer

Innovate with industry leaders

Work alongside global experts to build world-leading cybersecurity tools, impacting millions of users around the world.

Learn & grow

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.

Work from anywhere

Recharge with a change of scenery – choose work from any location when you feel a need to power your creativity and drive.

Physical well-being

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.

Mental & emotional health

Nurture your mind with free psychologist consultations, dedicated mental health events, and premium access to top-rated wellness apps like Calm, Headspace, and Mindletic.

Premium healthcare

Receive private health insurance giving you peace of mind for your health needs.

Joyful moments – special treats

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.

Company events & team-building

Experience iconic Nord Security celebrations, team-buildings, and knowledge-sharing events, nurturing bonds that fuel our success.

Workation

Embark on a legendary company getaway abroad, filled with exciting activities, live concerts, engaging workshops, and epic time together.

Kindly refer to our Privacy Notice for Recruitment Candidates for comprehensive information regarding our data handling procedures throughout recruitment processes.

We expect all candidates to provide accurate and complete information during the recruitment process. While limited use of AI tools to refine application materials is acceptable, candidates remain fully responsible for ensuring that their submissions reflect their own qualifications, skills, and experience. Any failure to do so may negatively affect participation in the recruitment process. If broader AI assistance is allowed for a particular role or stage, we’ll let you know in advance.

By submitting your application, you acknowledge that it may be processed using automated tools for evaluation purposes. As part of our recruitment process, we may use an AI-based application review tool to help assess applications based on skills and experience relevant to the role. This technology is used to support - not replace - human decision-making, and every application is ultimately reviewed by a recruiter.

If you would like more information about how AI is used in this process or wish to exercise your rights under applicable data privacy laws, please contact us at privacy@nordaccount.com. Should you prefer to opt out of the automated evaluation, please submit your application directly to career@nordsec.com.

Apply once. Then go straight to the hiring manager.

After you apply, unlock the direct contact details of the people who actually make the call. A quick follow-up makes you 5x more likely to land an interview.

MR

Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
Unlocked after you apply
·

Fraud Prevention Manager Related jobs

Other jobs at Nord Security

Premium

Reach out to the hiring manager directly.

Gain access to the contact details of the hiring managers who actually decide, and reach out to network with them directly. That, plus more when you upgrade:

  • Full match report with fit score and gaps
  • Career diagnostics on how recruiters read you
  • Curated company matches and warm intros
  • 48h early access to new roles

Cancel anytime.