Senior Fullstack Engineer (PHP/Typescript)

Навыки

• API (интеграции)
• DDD
• GitLab CI
• Grafana
• Интеграционное тестирование
• Jaeger / OpenTelemetry
• JWT

О компании и продукте

• X-FLOW is a mobile game development company established in 2018. We gained recognition after the release of Happy Color , the most popular digital coloring book and one of the most successful ad-driven mobile apps in the world. We take pride in our diverse and talented team and partners, spread across the UK, Cyprus, the Netherlands, and other regions worldwide.
• We are currently looking for a Senior Fullstack Engineer for our flagship project, Happy Color .

Задачи

• Design and develop RESTful APIs using PHP/Laravel
• Build frontend applications using TypeScript/React with a focus on performance and Developer Experience (DX)
• Integrate with external services
• define and maintain API contracts
• Optimize performance, perform profiling, and reduce latency
• Design database schemas, handle migrations, indexing, and query optimization
• Contribute to quality assurance: write tests (unit/integration/e2e), conduct code reviews, and automate checks
• Ensure observability and reliability: implement logs, metrics, alerts, and traces
• Participate in designing architectural solutions

Требования

• 4+ years of experience with PHP, strong knowledge of Laravel (DI, queues, profiling, REST, modularity)
• 4+ years of experience with TypeScript, strong knowledge of React/Redux Toolkit, routing, build processes, and bundle optimization
• Databases: PostgreSQL/MySQL, Redis
• experience with schema design, indexes, and transactions
• Message Queues/Buses: Kafka — experience with event-driven integrations
• Security: OAuth2, JWT
• Understanding of DDD, SOLID, 12-Factor App methodology, and observability (Prometheus/Grafana, OpenTelemetry)
• Experience with or understanding of GitLab CI, feature flags, migrations, and blue-green/rolling deployment strategies

Будет плюсом

• Experience with Golang development
• Development experience with Ant Design (Antd) 5+
• Testing tools: Jest, Playwright
• for PHP — PHPUnit/Codeception
• integration/e2e testing experience
• Technology Stack (Core)
• Backend: PHP (Laravel), REST, PostgreSQL/MySQL, Redis, Kafka, Clickhouse
• Frontend: TypeScript, React, Redux Toolkit
• DevOps: GitLab CI, Docker
• Observability: Prometheus, Grafana, OpenTelemetry, Sentry

Условия

• Competitive salary and benefits package
• Opportunity to work with a talented and passionate team in a creative and dynamic environment
• Flexible working hours and remote/office work options
• Career growth and professional development opportunities
• A fun and inclusive company culture that celebrates diversity and creativity
• Join us and let’s create great product together!
• When you apply for this role, we process your personal data in accordance with our Candidate Privacy Notice ( https://xflowgames.com/candidate-privacy-notice )

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