C

Senior Backend Developer

Remote
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AI Summary

Design, develop, and maintain scalable backend systems for blockchain payment infrastructure using PHP and MySQL. Collaborate with cross-functional teams to deliver features, write unit tests, and ensure production system reliability. Requires 5+ years of object-oriented PHP experience, Laravel expertise, and strong database optimization skills.

Key Highlights
5+ years of object-oriented PHP with SOLID principles
Experience with Laravel framework and MySQL/PostgreSQL
Kafka message-driven services and Docker/Docker Compose
Remote-first company with flexible benefits and work arrangements
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 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
Technical Skills Required
PHP Laravel MySQL Apache Kafka
Benefits & Perks
Flexible Benefits (up to €250/month)
Fully remote work
Medical insurance or reimbursement
Financial support for important life events
Nice to Have
Understanding crypto industry
Experience with Go

Job Description


Coinspaid Solutions is a fintech company building blockchain payment infrastructure for the global economy.

We design, implement, and scale payment systems that connect digital assets with real-world financial operations. Our solutions help businesses and financial institutions operate efficiently in the evolving digital asset landscape.

For over 11 years, we’ve been developing products that bring crypto payments closer to mainstream adoption. Today, our team includes 350+ professionals working remotely across multiple countries.

We combine the pace of fintech with a long-term approach to building products, teams, and careers. As a remote-first company, we give people flexibility in how they work while maintaining strong collaboration and shared ownership across teams.

🏆 In 2026, Coinspaid was recognized as Best Corporate Culture in the Blockchain Industry in Europe, reflecting our focus on ownership, trust, and collaboration.


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


Requirements:

  • 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
  • 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


Nice to have:

  • Understanding crypto industry
  • Experience with Go


Why should you choose Coinspaid?

You’ll be joining a company that is actively shaping its space – with enough scale to matter and enough room to make an impact.

At Coinspaid, people are expected to think, contribute, and take ownership – and are supported in doing so.

We focus on flexibility, wellbeing, and long-term growth – without overcomplicating how benefits work.


Flexible Benefits

  • Benefit Bar – up to €250/month
  • A flexible monthly budget you can use for what matters most to you – from sports and mental health to coworking, home office, or medical-related expenses.

Work & Flexibility

  • Fully remote work from almost anywhere
  • Optional offices and relocation support
  • Flexible, async-friendly environment

Growth & Learning

  • Budget for courses, certifications, and professional development
  • Language learning support
  • Cross-team learning and knowledge sharing

Wellbeing & Support

  • Medical insurance or reimbursement depending on location
  • Access to mental health support
  • Financial support for important life events

Extras

  • Merch shop with rewards system
  • Team offsites and company events


Sounds good? Well then, we can’t wait to see your resume!

To learn more please visit: https://coinspaid.com/about-us/ & https://coinspaid.com/careers/


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