Senior PHP Backend Engineer

Posted 2 Days Ago
Be an Early Applicant
Hiring Remotely in Rigio, GRC
Remote or Hybrid
Senior level
Blockchain • Fintech • Payments • Cryptocurrency
The Role
Design, develop, and maintain scalable PHP backend systems using Laravel and relational databases. Implement complex features, domain-driven design, messaging, reliable money-handling logic, testing, monitoring, and security practices. Participate in architecture discussions and code reviews, troubleshoot production systems, share on-call responsibilities, and collaborate with cross-functional teams. Daily work includes Docker/Kubernetes-based development and optimization of database and service performance.
Summary Generated by Built In
Coinspaid Dev is the engineering brand behind the technology, infrastructure, and R&D expertise built within Coinspaid. With more than 120 engineers and over 11 years of industry experience, Coinspaid Dev brings together software engineering, infrastructure, security and R&D teams with experience building distributed systems and blockchain infrastructure operating across more than 20 blockchain networks.
Coinspaid Dev emerges as an independent engineering brand with a straightforward mission: to advance blockchain infrastructure engineering and contribute practical expertise back to the industry. The structure is new. The experience behind it is not.

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

  • Experience (5+ years) in object-oriented PHP and modern PHP tools
  • Software design principles (SOLID, KISS, DRY) and layered architecture
  • Applied DDD practices: bounded contexts, aggregates, domain events
  • 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
  • Message-driven services in production with Apache Kafka or a comparable broker
  • Handling money in application code: exact arithmetic, explicit rounding rules, multi-currency precision, idempotent money-moving operations
  • Security best practices
  • Experience with monitoring tools (Prometheus, Grafana or similar)
  • Working with Docker/Docker Compose/Kubernetes on a daily basis
  • Good level of spoken and written English (B1+) and Russian

  • Experience with Go
  • Fintech, payments, or crypto domain experience
  • High-load

Why join CryptoProcessing by 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 €230/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/

Skills Required

  • 5+ years of experience with object-oriented PHP and modern PHP tools
  • Knowledge of SOLID, KISS, and DRY software design principles
  • Experience with layered architecture
  • Applied domain-driven design practices, including bounded contexts, aggregates, and domain events
  • Good knowledge of current Laravel versions
  • Strong understanding of MySQL or PostgreSQL, including transaction management
  • Experience optimizing database queries and analyzing deadlocks and database performance
  • Production experience with message-driven services using Apache Kafka or a comparable broker
  • Experience handling money in application code, including exact arithmetic, rounding rules, multi-currency precision, and idempotent money-moving operations
  • Knowledge of security best practices
  • Experience with Prometheus, Grafana, or similar monitoring tools
  • Daily experience with Docker, Docker Compose, and Kubernetes
  • B1+ spoken and written English proficiency
  • Russian language proficiency
  • Experience with Go
  • Fintech, payments, or cryptocurrency domain experience
  • Experience with high-load systems
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The Company
HQ: Tallinn
221 Employees
Year Founded: 2014

What We Do

CoinsPaid is a fintech company building blockchain payment infrastructure and a crypto-financial ecosystem. They offer payment processing solutions, business wallets, and exchanges, connecting digital assets with real-world financial operations.

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