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:

Application screening

Interview Stages (2-3 weeks):

Prescreening call (40 min)

Technical Interview (60 min)

Soft Skills Interview (40 min)

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 build something great together!