PHP Developer (SEON / Anti-Fraud)

At WhiteTech, we empower businesses in the financial ecosystem with cutting-edge white-label and SAAS solutions.

Our comprehensive suite of tools is tailored for EMI, PSP, e-commerce, and open banking platforms. With WhiteTech, clients gain access to a platform designed for flexibility, scalability, and seamless integration.

Our mission is to help businesses unlock their full potential in a rapidly evolving financial landscape.

Whether scaling your PSP, enhancing your EMI services, or diving into open banking, WhiteTech is your partner for innovation and growth.

_We are a remote-first technology company and welcome applications from candidates across Europe, including the EEA, the UK, Switzerland, and other non-EEA European countries such as Ukraine, Moldova, Georgia, Armenia, Montenegro, Turkey, and the Western Balkans. We also consider applicants from different locations who can work within Central European Time (CET)._

Your role and impact:

We are looking for PHP Developer with hands-on experience in anti-fraud systems and SEON integration. We expect a high level of ownership and deep technical involvement in building fraud prevention solutions.

Your key responsibilities will include:

• 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
• Asynchronous processing
• Queues and event-driven architecture
• Transactional consistency
• Retry / timeout / fallback patterns
• Idempotency
• 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 (Required)

• Integration of SEON API into critical business flows
• Experience with transaction screening, device intelligence, and email/phone/IP enrichment
• Building logic based on SEON rules, scoring, and signals
• Working with manual review and case management flows
• Experience integrating SEON in fintech / payments / high-risk environments
• Ability to adapt SEON to different use cases beyond basic integration
• Understanding how to reduce false positives / false negatives through proper system design

Nice to Have

• Experience in fintech, payments, acquiring, wallets, or payouts
• Experience integrating KYC / AML providers
• Experience building risk engines or orchestration layers
• Experience with microservices architecture
• Knowledge of DDD, CQRS, and event-driven architecture
• Experience with RabbitMQ, Kafka, or SQS
• Understanding of authentication, identity, trusted devices, and SCA / step-up verification

Our recruitment process typically follows these stages:

1. Application screening

2. Interview Stages (2-3 weeks):

• Prescreening call (40 min)
• Technical Interview (60 min)
• Soft Skills Interview (40 min)

3. Job Offer

We offer:

• 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

Embrace the opportunity to develop your skills in a cutting-edge fintech environment.

Please apply now to be part of our dynamic team and make a tangible impact on the future of payments!

Let’s buildsomethinggreat together!