Senior Backend Developer (PHP)

TL;DR

Senior Backend Developer (PHP) (Fintech): Building and maintaining high-performance APIs, background jobs, and database-driven features with an accent on correctness, security, and performance. Focus on optimizing PostgreSQL queries, API responses, reviewing pull requests, and improving code quality and architecture.

Location: Located within CET ±2 hours (UK to Germany-style timezones)

Salary: $100,000 – $140,000

Company

Fast-growing European FinTech that provides crypto purchase/sale and payments rails for both end users and businesses.

What you will do

• Write modern PHP (8.3+) using strict types, typed properties, and PSR standards
• Build and maintain high-performance APIs, background jobs, and database-driven features
• Review pull requests: catch bugs, enforce standards, and suggest better patterns
• Identify opportunities to improve code quality, architecture, and performance
• Optimise PostgreSQL queries, API responses, and background jobs for speed and efficiency

Requirements

• 5+ years of professional PHP experience
• Native-level English (spoken and written)
• Located within CET ±2 hours (UK to Germany-style timezones)
• Strong OOP fundamentals, design patterns, and clean architecture
• Strong PostgreSQL skills (query optimisation, migrations)
• Experience with Git workflows, CI/CD, and deployment processes
• Security mindset + attention to detail (edge cases, performance, failure modes)

Nice to have

• Experience in payments (highly relevant); crypto exposure
• Event-driven/async processing, queues, observability