Independent Software Consultant / Founder

Staff-level backend engineer and independent contractor. 20+ years building production PHP systems for international clients in fintech, payments, SaaS, education and cyber-security. Specialist in Domain-Driven Design (DDD), Event-Driven Architecture and microservices.

Remote, EU-based.

ARCHITECTURE & DOMAIN MODELLING - Delivered multiple greenfield Bounded Contexts end to end - aggregate roots, domain events, contracts, service-to-service REST APIs - migrating legacy functionality out of monoliths into clearly-owned domains.

• Architected a platform-agnostic, Composer-based package system deployable across multiple PHP frameworks with swappable frontends.

PLATFORM & API STANDARDS - Shipped company-wide shared libraries - HTTP client with factory composition, JWT-enforced request factories and Symfony autowiring, plus shared exception handling - adopted across multiple services.

• Led AsyncAPI contract-first adoption: pre-commit schema validation, contract tests binding serialization to published schemas, and a written downstream review process.

RELIABILITY & OBSERVABILITY - Hardened a Bounded Context and its data model so a later extraction into a standalone microservice shipped in days, with zero production incidents.

• Eliminated recurring failure classes: optimistic locking, race conditions, N+1 queries, dead-letter queues, graceful worker shutdown.
• Metrics, alerting and dashboards cutting time-to-detect.

DELIVERY & AI-ASSISTED ENGINEERING - Queue onboarding cut from a multi-day effort to a single morning; bug-fix lead time from sprints to hours.

• Introduced AI-assisted development workflows - agent context files, structured command pipelines, PRD/Plan separation, pre-planning analysis - on production codebases.
• Led and mentored engineers; Epic/Story/Sub-task cadences still in use after handover