REMOTE | FULLTIME | PLAYKOT

Backend Development Develop and maintain backend services using PHP. Work with a high-load production system (~100k DAU). Extend and support a monolithic backend architecture, improving stability and scalability.

Architecture & APIs

• Design, implement, and maintain APIs and internal service interactions.
• Work with API contracts based on JSON Schema.
• Use jRPC for internal communication between system components.

Infrastructure & Data

• Work with MongoDB, Redis, AWS, and Centrifugo.
• Optimize data storage, caching strategies, and background processes.
• Ensure system reliability under real production load.

Performance & Monitoring

• Analyze system performance using Grafana and other monitoring tools.
• Identify bottlenecks, degradation points, and inefficiencies.
• Optimize queries, caching layers, and heavy backend flows.

Required Qualifications

• Strong commercial experience with PHP backend development (5+ years).
• Experience in GameDev or other high-load backend systems.
• Solid understanding of OOP and software design principles.
• Hands-on experience with MongoDB and Redis.
• Experience working with AWS.
• Ability to analyze metrics and work with monitoring tools such as Grafana.
• Understanding of API contracts and JSON Schema.
• Experience with jRPC or similar RPC/API approaches.
• Strong understanding of high-load system challenges
• Comfortable working with monolithic architectures and evolving them without disruptive rewrites.