About the role

In this role, you will be responsible for the evolution of the CRM platform architecture, which is used in both SaaS and on-premise deliveries.
The CRM consists of master CRM and broker CRM and serves as a key integration point for external systems and internal services.

The main focus is architectural evolution: adopting a spec-first approach, standardizing APIs and error models, and preparing the CRM for gradual service extraction (all new services are developed in Golang).
The role is an individual contributor position with active participation in discussions and challenging technical decisions.

Job description

• Designing and evolving the architecture of the CRM system;
• Analyzing existing architectural decisions and identifying scalability limitations;
• Implementing a spec-first approach for APIs and error standardization;
• Defining and evolving API contracts with backward compatibility in mind;
• Preparing and supporting the extraction of new services (Golang);
• Working with technical debt at the architectural level;
• Developing and maintaining business-critical backend components;
• Code reviews with a focus on architecture, quality, and long-term maintainability;
• Participation in technical discussions and challenging existing solutions.

Qualifications

You have:

• 5+ years of commercial experience in backend development with PHP;
• Strong, well-formed architectural principles and a clear understanding of how backend applications should be structured and evolve over time;
• Significant experience with Symfony and PHP 8+;
• Proven experience designing, evolving, and operating high-load backend systems;
• Deep knowledge of PostgreSQL, including query optimization, indexing strategies, isolation levels, locking, and performance troubleshooting;
• Experience designing and supporting APIs in production systems, with a focus on scalability and backward compatibility;
• Practical experience developing or maintaining services in Golang; solid understanding of the ecosystem: Kafka, Redis, WebSockets, gRPC;
• Experience working with systems that evolve simultaneously as SaaS and on-premise.

Highly preferred:

• Experience implementing a spec-first approach (OpenAPI or similar);
• Experience standardizing API contracts and error models;
• Hands-on experience with gradual service extraction from a monolith;
• Experience working in Kubernetes-based environments and CI/CD pipelines;
• Strong production debugging and observability skills (e.g., Sentry, Jaeger, Prometheus/Grafana, ELK stack);
• Solid experience with static analysis and automated refactoring tools (e.g., PHPStan, Psalm, Rector, CS Fixer);
• Strong practical experience with key Symfony components (Doctrine, DI, Serializer, Validator/Forms, Security/Voters, Messenger).

Will be a plus:

• Experience working with distributed systems and integrations;
• Participation in architectural RFCs / ADRs or similar processes;
• Experience introducing engineering standards into an existing team;
• Experience with API Platform or similar frameworks;
• Experience using AI-assisted developer tools in daily work (e.g., Claude Code, Codex, Copilot).