Senior PHP Backend Engineer

CoinsPaid offers ready-to-use crypto payment solutions tailored to business’ every need. Standing at the forefront of mass adoption, our products help businesses gear up for the new era of digital assets. We showed a tremendous growth in terms of transactions and volumes since 2019 and in 2023 were marked by Forbes as the "Best Crypto Payment Gateway for High-Volume Transactions". 
Headquartered in Estonia and having 3 international hubs, we are still a remote-first company with employees working from 30+ countries around the world. At CoinsPaid, we are passionate about crypto, fintech and are putting great effort into building a team that will get the world ready for every-day crypto use. If these feel close to you - give us a shout!

Key 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, Laravel, and MySQL, 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.

Required Skills and Experience:

• Experience (5+ years) in object-oriented PHP and modern PHP tools and practices: SOLID, KISS, etc.
• 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.
• Experience in designing, implementing, and maintaining message-driven services using Apache Kafka (or other message broker).
• Experience with monitoring tools (Prometheus, Grafana or similar).
• Experience with security best practices in web software development.
• Working with Docker/Docker Compose on a daily basis.
• You understand Agile values and principles.
• Good level of spoken and written English (B1+) and Russian.

Personal Qualities:

• Be ready to defend your solution or accept the team’s one in case it's more suitable in the current situation.
• Ability to communicate technical concepts clearly with both technical and non-technical teams.
• You are self-driven, proactive, and results-oriented, with a high level of ownership of assigned tasks.
• We value collaboration and focus on solutions rather than blame when challenges arise.
• Attention to details.

Would be a plus:

• Experience with DDD development practices.
• You are familiar with database partitioning/sharding and can share pros and cons.
• You had experience with metrics gathering, monitoring and alerting system configuration and trends analysis.
• Proven experience in building and maintaining high-performance, scalable, and fault-tolerant backend systems.
• Knowledge of payment systems, blockchain, or other fintech-related technologies.
• You understand Kubernetes and use Minikube, kubectl in daily work
• You have some Golang experience or willingness to learn

Why should you choose CoinsPaid?
To become a part of this solid team, passionate about their jobs and the crypto industry as a whole. To feel a great team spirit and meet people supporting each other's growth and development. To become a part of a rapidly developing international company and a crypto payments leader. Only in 2024 CoinsPaid was awarded more than 10 times:
- Acquisition International 2024 - Best Crypto-payment Solutions Firm 2024 - Europe;- World Business Annual Awards 2024 - Leading Blockchain & Cryptocurrency Firm in Europe 2024;- World Business Annual Awards 2024 -  Best Blockchain Initiative Europe 2024;- World Business Annual Awards 2024 - Best Blockchain Fintech Company Europe 2024;- Global Brands Magazine Awards - Leading Cryptocurrency Payment Solutions;- ICA Compliance Awards - Development of Automated Real-time Risk Assessment System;- Europe Fintech Awards - Crypto Award;- EiGE Awards - Best Payment Provider 2024;- World Business Annual Awards 2024 - Best Cryptocurrency Payment Solution Provider Europe 2024;- W