Senior PHP Backend Engineer - Remote, Fintech-Scale Systems

CoinsPaid; United States; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

Flexible Benefits budget

Fully remote work

Relocation support

Language learning support

Job summary

Coinspaid Dev is seeking a senior backend engineer to design, build, and maintain scalable PHP backends and distributed systems for fintech applications. You will work with Laravel, MySQL/PostgreSQL, and Kafka in a remote, async-friendly environment.

The role requires 5+ years of PHP OOP, Go experience, and strong database skills. Flexible benefits, remote work options, and opportunities to contribute to high-load financial services are offered.

Qualifications

• 5+ years of experience in object-oriented PHP and modern PHP tools.
• Solid knowledge of Laravel framework.
• Strong understanding of relational databases (MySQL/PostgreSQL) and transaction management.

Responsibilities

• Collaborate with cross-functional and cross-domain teams to gather requirements, design solutions, and deliver features
• Design, develop, and maintain backend systems using PHP and MySQL(or similar), ensuring they are scalable and maintainable
• Implement and optimize complex features with a focus on clean, reusable, and efficient code
• Write unit tests to ensure the reliability and scalability of code
• Participate in code reviews, architecture discussions, and ensure adherence to best practices in software development
• Monitor and troubleshoot production systems, ensuring the highest levels of availability, performance, and security
• Share on-call duties with the team to ensure smooth operations of the systems in production
• Stay updated with new technologies and trends, and introduce them where appropriate to enhance system performance and maintainability
• Experience (5+ years) in object-oriented PHP and modern PHP tools
• Software design principles (SOLID, KISS, DRY) and layered architecture
• Applied DDD practices: bounded contexts, aggregates, domain events
• Good knowledge of the latest versions of Laravel framework
• Strong understanding of relational databases like MySQL/PostgreSQL including transaction management
• Experience in database query optimization, analysing deadlocks and db performance
• Message-driven services in production with Apache Kafka or a comparable broker
• Handling money in application code: exact arithmetic, explicit rounding rules, multi-currency precision, idempotent money-moving operations
• Security best practices
• Experience with monitoring tools (Prometheus, Grafana or similar)
• Working with Docker/Docker Compose/Kubernetes on a daily basis
• Good level of spoken and written English (B1+) and Russian
• Experience with Go
• Fintech, payments, or crypto domain experience
• High-load

Skills

PHP OOP

Go

Tools

Docker

Kubernetes

MySQL

PostgreSQL

Kafka

Job description

Coinspaid Dev is seeking a senior backend engineer to design, build, and maintain scalable PHP backends and distributed systems for fintech applications. You will work with Laravel, MySQL/PostgreSQL, and Kafka in a remote, async-friendly environment.

The role requires 5+ years of PHP OOP, Go experience, and strong database skills. Flexible benefits, remote work options, and opportunities to contribute to high-load financial services are offered.