PHP Developer – SEON, Anti-Fraud

Role Overview

• Work with SEON as a product, not just at the API level
• Design and implement fraud detection and prevention flows
• Work with risk signals, rules, scoring, and decision-making logic
• Build and maintain anti-fraud orchestration within complex systems
• Make independent technical decisions on how and where to integrate SEON checks
• Understand the difference between simple provider integration and building a full fraud-control layer

Requirements

• 4+ years of commercial experience with PHP
• Solid hands-on experience integrating SEON into production systems
• Experience building antifraud / risk / security-related flows
• Strong understanding of: REST APIs and webhooks
• Strong understanding of: Asynchronous processing
• Strong understanding of: Queues and event-driven architecture
• Strong understanding of: Transactional consistency
• Strong understanding of: Retry / timeout / fallback patterns
• Strong understanding of: Idempotency
• Strong understanding of: Observability (logging, tracing, monitoring)
• Experience with Symfony or another modern PHP framework
• Good knowledge of SQL and transactional systems
• Ability to work with external provider documentation and turn it into production-ready solutions
• Ability to work independently in environments with incomplete requirements and complex domain logic
• SEON-Specific Experience: Integration of SEON API into critical business flows
• SEON-Specific Experience: Experience with transaction screening, device intelligence, and email/phone/IP enrichment
• SEON-Specific Experience: Building logic based on SEON rules, scoring, and signals
• SEON-Specific Experience: Working with manual review and case management flows
• SEON-Specific Experience: Experience integrating SEON in fintech / payments / high-risk environments
• SEON-Specific Experience: Ability to adapt SEON to different use cases beyond basic integration
• SEON-Specific Experience: Understanding how to reduce false positives / false negatives through proper system design

Tech Stack

• PHP
• SQL
• Symfony

Benefits

• Competitive compensation package (commensurate with your experience)
• 19 business days of flexible Paid Time Off (PTO)
• Fully remote work with flexible hours (within the CET time zone) from any location of your choice
• Values-driven culture with a friendly and supportive work environment
• Opportunity to regularly participate in conferences and community events as both a participant and contributor
• Matrix organizational structure designed to streamline communication, remove barriers, and promote efficiency