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Transaction Monitoring Analyst

Madrid, Madrid, Spain
Full-Time LCCustomer Operations

Job Description

Hi! We're Mercuryo, and we’re on a mission to redefine finance by blending the best of traditional banking with the power of decentralized finance (DeFi). We believe everyone deserves seamless access to Web3 and traditional financial services, so we're building the platform that makes it real: one that simplifies crypto and integrates it into the broader financial ecosystem.


Since launching in 2018, we've grown into a recognized force in the industry, named one of Europe's Fastest-Growing Startups 2025 by Sifted and awarded Best Crypto On-Ramp & Payments Solution 2025 by Cryptonomist. We've partnered with leading brands including Visa, Mastercard, MetaMask, Trust Wallet, Ledger, and Jupiter, powering over 200 products and collaborating directly with major ecosystems like Solana, Consensys, and BNB Chain.


Why Mercuryo?

Industry Impact

Join us in helping world-class Web3 projects onboard millions of new users into the next generation of finance.


Innovative Environment

Collaborate with more than 300 talented professionals from diverse backgrounds — including banking, SaaS, and Web3 — all united in delivering outstanding user experiences.


Growth and Learning

Our expanding network of 200+ B2B partnerships and a user base of over 7 million means there’s always room to grow your skills, tackle new challenges, and push boundaries.


Flexible Culture

We’re remote-first, celebrating diversity across 30 countries. At Mercuryo, you’ll be empowered to take ownership of your work, spark creativity, and shape how we move forward together.


About the Role:

Mercuryo is seeking a detail-oriented Transaction Monitoring Analyst with a minimum of 2 years’ experience in a similar role within the financial services or crypto industry. The successful candidate will be responsible for monitoring and analyzing both crypto and fiat transactions to detect potential financial crime. Using specialized tools such as Chainalysis KYT, Chainalysis Reactor, and dedicated fiat transaction monitoring systems, you will play a key role in ensuring compliance with AML regulations and internal policies.

This role also requires direct support to the Enhanced Due Diligence (EDD) process by analyzing client responses to Requests for Information (RFIs), particularly around Source of Funds (SoF) and Source of Wealth (SoW). The Analyst will further contribute to ongoing monitoring by performing periodic reviews of higher-risk users.

 

Your Role:

  • Continuously review and monitor daily transaction flows using automated monitoring systems and manual review techniques.
  • Analyze blockchain transactions using Chainalysis KYT and conduct in-depth investigations with Chainalysis Reactor for flagged activities.
  • Monitor fiat transactions via dedicated monitoring tools to identify irregular patterns and potential AML risks.
  • Identify, document, and escalate suspicious activities in line with AML/KYC regulations.
  • Prepare Internal Suspicious Activity Reports (ISARs) and escalate high-risk cases to the MLRO/Compliance team.
  • Maintain comprehensive records and audit trails of investigations for regulatory purposes.
  • Assist in the collection and review of user documentation (e.g., SoF/SoW evidence, counterparties, and purpose of transactions).
  • Assess responses to Requests for Information (RFIs) for consistency, completeness, and legitimacy.
  • Provide recommendations to Compliance on whether additional clarification or escalation is required.
  • Support the preparation of material for potential SAR/STR filings when suspicious activity is identified.
  • Conduct scheduled periodic reviews on high-risk users, ensuring customer profiles remain up to date and aligned with their transactional activity.
  • Reassess risk ratings based on new information, transactional behavior, and updated SoF/SoW documentation.
  • Document findings in line with audit and regulatory requirements.
  • Liaise with internal Compliance, Legal, Customer Operations, and Anti-Fraud teams to ensure timely resolution of flagged cases.
  • Contribute to the enhancement of monitoring rules, thresholds, and workflows.
  • Stay informed of regulatory changes (EU AMLD5/6, MiCA, FATF standards) and emerging financial crime typologies.

 

What We're Looking For:

  • Minimum 2 years of experience in transaction monitoring, AML investigations, or financial crime compliance.
  • Proven hands-on use of Chainalysis KYT & Reactor (or equivalent blockchain analytics tools).
  • Familiarity with fiat transaction monitoring systems, SoF/SoW assessments, and EDD procedures.
  • Strong analytical and investigative skills, with excellent attention to detail.
  • Ability to draft clear, concise investigation reports.
  • Good communication skills to liaise with internal teams and occasionally external stakeholders.
  • A Bachelor’s degree in Finance, Economics, Business, Law, or related field is preferred.

 

What We Offer:

  • Competitive market rate salary and performance-based incentives.
  • 22 days annual leave with an additional 6 company days, plus bank holidays.
  • Comprehensive health insurance plans.
  • Extensive benefits program.
  • Flexible work schedule and remote work options.
  • Modern offices and co-working spaces across 6 countries.
  • Working equipment.
  • Professional development and training opportunities.
  • Opportunity to shape the initiatives you’re working on.
  • Diverse and friendly team.
  • We are open-minded to new ideas.

 

Join Us!

If you're driven to be a part of the Web3 forefront and are keen to leave your mark on this rapidly evolving field, Mercuryo is an excellent choice. Discover our open positions and see how you can contribute to shaping the future!


Mercuryo is an equal opportunity employer and prohibits discrimination and harassment of any kind. We are committed to providing employees with a work environment that is progressive and open-minded. Our employment philosophy is to hire the best people and empower them to do the best work of their lives. Employment decisions are based on business needs and individual merit, without regard to race, colour, religion, ethnicity, sexual orientation, nationality, marital status, gender, age, disability, veteran status, or any other characteristic protected by law. Mercuryo is also committed to providing reasonable accommodation during the application process for qualified individuals with disabilities. If you require assistance to complete your application, please contact our Talent Team.

About Mercuryo

First seen: February 16, 2026
Last updated: March 16, 2026