Senior Native PHP Developer

Job Description

Location: Fully remote from Vietnam
Start date: ASAP
Languages: Fluent English is mandatory
Industry: Mobile Payment / Digital Monetization / Carrier Billing (Telecom & Fintech)

Pragmatike is recruiting on behalf of a global leader in mobile payment and digital content monetization. Operating across 60 countries our client connects telecom operators merchants content providers media companies and brands powering billing capabilities (Direct Carrier Billing Mobile Money Local Payment Methods) content distribution interactivity programs and multi-channel activations. Their platforms process high-volume transactions and seamless user journeys at scale.

Professional Background:

Were looking for a Native PHP Developer with 5 to 10 years of experience building and maintaining high-throughput production-grade backend systems. You should have strong command of core (vanilla) PHP not just framework-driven development and direct experience with transaction-heavy mission-critical applications. Experience in payments billing telecom or any high-availability transactional environment is a strong plus. Autonomy rigor and problem-solving are essential as is comfort working independently in a distributed cross-timezone team.

Your Responsibilities:

• Design develop and maintain robust backend services in native PHP (7/8) with clean testable and well-documented code.

• Build and optimize high-volume transaction and billing workflows ensuring reliability idempotency and data integrity at scale.

• Develop and maintain REST/SOAP APIs for operator merchant and third-party integrations.

• Work with relational databases (MySQL/MariaDB/PostgreSQL): schema design query optimization indexing and performance tuning.

• Integrate with external systems and gateways (payment messaging/SMS USSD carrier connections monitoring billing).

• Implement asynchronous processing using message queues (RabbitMQ Kafka) and caching layers (Redis/Memcached).

• Ensure application security resilience and observability (logging metrics alerting) in a high-availability context.

• Contribute to CI/CD pipelines code reviews and Git-based workflows.

• Collaborate with product ops and QA teams to ship monitor and continuously improve services in production.

What You Bring:

• Expert-level native/core PHP (7/8) solid OOP design patterns and clean architecture.

• Proven experience with high-throughput transactional backend systems (mandatory).

• Strong SQL skills (MySQL/MariaDB/PostgreSQL): modeling optimization debugging.

• Solid experience designing and consuming REST/SOAP APIs.

• Comfort with Linux environments Git and CI/CD workflows.

• Familiarity with message queues (RabbitMQ/Kafka) caching (Redis) and asynchronous processing.

• Good understanding of application security and data integrity in sensitive/financial contexts.

• Fluent English and the ability to work autonomously across timezones.

Nice To Have:

• Exposure to payment billing or telecom platforms (DCB Premium SMS USSD Mobile Money LPM).

• Experience with a modern PHP framework (Symfony Laravel) alongside native PHP.

• Docker / containerization and basic CI/CD tooling.

• Familiarity with monitoring/logging stacks (Prometheus Grafana ELK/Graylog).

• Awareness of PCI-DSS or other security/compliance standards.

Why Join Us:

Our client is a well-established international player shaping the future of mobile payments and digital monetization connecting operators merchants and brands across dozens of markets. Youll work on platforms that process transactions at real scale in a dynamic and fast-paced environment that values autonomy ownership and technical excellence where your contributions directly impact revenue-critical systems used worldwide.

Pragmatike is dedicated to a fair transparent and inclusive recruitment process. We ensure that no applicant is discriminated against based on age disability gender gender identity or expression marital or civil partner status pregnancy or maternity race religion or belief sex or sexual accordance with the General Data Protection Regulation (GDPR) your personal data will be processed lawfully fairly and securely. We collect and use your personal data solely for recruitment purposes including sharing it with our client(s) for employment consideration. You have the right to request access correction or deletion of your data at any time. We are committed to maintaining the confidentiality and security of your information throughout the recruitment process.

Required Experience:

Senior IC