Contractor: Payments & Fraud Specialist (all genders)

Job details

Engineering

Amsterdam

Full-time

Dott is the European champion of shared micro-mobility. Created through the merger of operators Tier and Dott in March 2024, the company decided to move forward under the name of Dott and integrated all vehicles into the Dott app. With the mission to change mobility for good, the team is led by CEO Maxim Romain and Executive Chairman Henri Moissinac. Dott facilitates sustainable travel, reduces congestion and pollution in cities, and decreases reliance on cars. With more than 250,000 shared vehicles in more than 400 cities across 21 countries in Europe and the Middle East, the 10 million users have generated over 400 million rides so far. For more information, visit www.ridedott.com

Please note: This is a freelance/contractor role. We are looking for an independent expert to partner with us on a B2B contract basis.

Start date: ASAP

About the Role

You'll own payments and fraud across Dott's European and Middle Eastern markets — optimising conversion, reducing fraud losses, and keeping the payment experience seamless for millions of users. This isn't a siloed role: you'll work directly with engineering, product, finance, and customer support to solve real operational problems with data.

THE ROLE AND YOUR IMPACT

Fraud & Risk

• Monitor, investigate, and act on fraudulent transactions, chargebacks, and suspicious behaviour patterns
• Build and tune fraud detection rules and risk-based workflows; stay ahead of new attack vectors
• Manage chargeback processes end-to-end and drive down fraud-related losses

Payments Operations

• Own payment conversion rate optimisation across markets — identify drop-offs, improve authorisation rates, reduce failures
• Work hands-on with PSPs (primarily Adyen) and our payment orchestration layer (ProcessOut) to troubleshoot and improve performance
• Manage refunds, disputes, and reconciliation workflows; monitor KPIs including auth rate, decline reasons, and retry success

Analysis & Reporting

• Query large datasets (SQL) to surface fraud patterns, payment anomalies, and operational trends
• Build dashboards and reports that drive decisions — not just describe what happened

Cross-functional Work

• Partner with engineering and product on fraud and payment feature development
• Translate fraud and payment risk clearly for non-technical stakeholders

YOU’LL FIT GREAT WITH THESE SKILLS AND QUALIFICATIONS

Core Domain Expertise

• High-Volume Operations: Hands-on experience in payment operations and fraud prevention within fast-paced consumer environments (e-commerce, fintech, mobility, or marketplaces).
• Payment Lifecycle Mastery: Deep understanding of card payment flows, including authorizations, decline handling, chargeback management, retries, and 3DS/SCA compliance.
• Proactive Fraud Detection: A strong, data-backed investigative instinct capable of identifying and neutralizing suspicious patterns before they result in financial losses.

Technical & Systems Proficiency

• Advanced Data Analytics: Highly proficient in SQL, with a track record of building independent, actionable reports in BI platforms like Looker, Tableau, or similar.
• PSP & Orchestration Ecosystems: Direct experience working with major Payment Service Providers (Adyen, Stripe, Checkout.com). Familiarity with payment orchestration layers is a strong plus.

Business Acumen & Soft Skills

• Decision-Making in Ambiguity: Proven ability to operate in dynamic environments and make confident, risk-based calls even when lacking perfect information.
• Cross-Functional Communication: Adept at translating complex risks and operational trade-offs into clear, actionable terms for engineers, product managers, and finance stakeholders.

We actively encourage a diverse and inclusive environment that fosters each employee’s individuality at Dott. We tak