Senior Fraud & Transaction Monitoring Engineering Manager in London

Hello! We’re Teya. Teya is a payment and software service provider, headquartered in London serving small, local businesses across Europe. Founded in 2019, we build easy to use, integrated tools that enable our members to accept payments and boost business performance. At Teya we believe small, local businesses are the lifeblood of our communities. We’re here because we don’t believe there’s a level playing field that gives small businesses with a fighting chance against the giants of the high street. We’re here because we see banks and legacy service providers making things harder for them. We don’t think the best technology or the best service should be reserved for those with the biggest headquarters. We’re here to fight for a future where small, local businesses can thrive, and to commit the same dedication they offer all of us. Become a part of our story. We’re looking for exceptional talent to join our mission. We offer a chance to create impact in a high-energy and connected culture, while benefiting from continuous learning opportunities, a supportive community which is proud to serve our mission, and comprehensive benefits.

Your Mission

We are looking for a highly technical Senior Fraud & Transaction Monitoring Engineering Manager to lead the analytical backbone of our fraud and AML monitoring capabilities. This role goes beyond operations: it focuses on building, optimising, and scaling the detection systems, rule engines, behavioural signals, and data flows that protect the Teya ecosystem. You will work closely with Data Engineering, Risk Analytics, Product, Data Science, and Platform Engineering to design the infrastructure and logic behind rule-based and model-driven monitoring. With a Head of First Line Risk already acting as PM, your role will be the technical owner of how monitoring systems work end-to-end.

• Own the Fraud & AML Detection Architecture
  • Act as the technical lead for the fraud & AML rules engine, risk scoring logic, and behavioural monitoring pipeline.
  • Design and improve the event flows, data schemas, triggers, and scoring components used for detection.
  • Work closely with engineering to implement scalable and low-latency monitoring logic in production.
• Build and Optimise Rule Logic
  • Lead analysts in designing and refining technical detection rules (syntax, thresholds, conditions, event mapping).
  • Translate risk appetite into robust, efficient, and data-backed rules.
  • Create testing frameworks, simulation tools, and regression checks for rules before deployment.
  • Measure rule performance with clear metrics (latency, false positives, leakage, precision).
• Integrate Risk Models & Behavioural Signals
  • Partner with data scientists to integrate ML-based risk scores, anomaly detectors, or velocity-based models into the rule engine.
  • Define how risk signals are weighted, aggregated, or combined with deterministic rules.
  • Ensure models and rules work coherently within the monitoring architecture.
• Engineering Collaboration & Technical Roadmap
  • Work closely with platform and backend engineers to improve system reliability and automation:
  • real-time alert pipelines
  • rule execution framework
  • data ingestion & streaming
  • audit logs & version control
  • monitoring dashboards
• Data & Event Quality Ownership
  • Define data requirements for fraud/AML systems: event mapping, attributes, enrichment.
  • Lead investigations into data discrepancies and improvements to event quality.
  • Partner with data engineering to ensure the pipeline is fit for detection logic.
• Leadership and Team Management
  • Manage a small team of technical analysts responsible for rules design and monitoring logic.
  • Work with the Head of First Line Risk to prioritise work and align on roadmap.
  • Build a strong engineering mindset in the fraud monitoring team: documentation, testing, performance measurement.

Your Story

• Technical Expertise
  • 6+ years in fraud/risk engineering, data engineering for fraud, or technical fraud/risk analytics.
  • Hands‐on experience designing or maintaining fraud/AML rules engines, transaction monitoring systems, or risk scoring pipelines.
  • Strong SQL skills and familiarity with distributed data systems (Snowflake, BigQuery, Redshift, or similar).
  • Understanding of event‐driven architectures, stream processing, and real‐time detection (Kafka, Pub/Sub, Flink, etc.).
  • Ability to work with engineering teams on API flows, backend logic, and alerting infrastructure.
• Fraud/AML Knowledge
  • Deep understanding of fraud typologies (card fraud, account takeover, mule activity, merchant fraud, synthetic IDs).
  • Good understanding of AML detection logic (structuring, layering, suspicious patterns, velocity signals).
  • Experience interpreting model outputs and integrating risk signals into systems.
• Leadership & Stakeholder Skills
  • Experience managing technical teams (analysts, engineers, or hybrid profiles).
  • Ability to convert complex detection problems into clear engineering requirements.
  • Strong communication skills for working with engineers, data scientists, and risk leadership.
• Nice to Have
  • Experience with fraud/risk platforms (Feedzai, Featurespace, Ravelin, Actimize, Alloy).
  • Familiarity with microservices architecture and rule evaluation engines.
  • Python experience for data analysis or prototype rule testing.
  • Prior experience in merchant acquiring, high‐velocity payments, or embedded finance.

The Perks

• We trust you, so we offer flexible working hours, as long it suits both you and your team;
• Physical and mental health support through our partnership with GymPass giving free access to over 1,500 gyms in the UK, 1-1 therapy, meditation sessions, digital fitness and nutrition apps;
• Our company offers extended and improved maternity and paternity leave choices, giving employees more flexibility and support;
• Cycle‐to‐Work Scheme;
• Health and Life Insurance;
• Pension Scheme;
• 25 days of Annual Leave (+ Bank Holidays);
• Office snacks every day;
• Friendly, comfortable and informal office environment in Central London.

Teya is proud to be an equal opportunity employer. We are committed to creating an inclusive environment where everyone regardless of race, ethnicity, gender identity or expression, sexual orientation, age, disability, religion, or background can thrive and do their best work. We believe that a diverse team leads to better ideas, stronger outcomes, and a more supportive workplace for all. If you require any reasonable adjustments at any stage of the recruitment process whether for interviews, assessments, or other parts of the application—we encourage you to let us know. We are committed to ensuring that every candidate has a fair and accessible experience with us.