06/18/2026 updated

JR
100 % available

Senior PHP Developer / DevOps Engineer

Imielin, Poland
Only remote
Postgraduate Studies in Software Engineering, AGH University of Science and Technology, Krakow
Imielin, Poland
Only remote
Postgraduate Studies in Software Engineering, AGH University of Science and Technology, Krakow

Profile attachments

Rozanski-CV.pdf

GitHub ActionsPHPArchitectureLinuxLegacy System Migration WorkbenchMySQLPHP DevelopmentSymfonyAWS ECSAmazon Relational Database ServiceAWS AuroraAWS FargateAtlassian BitbucketMicroservices
Senior PHP/Symfony Developer and AWS Consultant with 15+ years of experience. Specialized in Symfony applications, AWS cloud infrastructure, ECS, Terraform, Aurora MySQL, DevOps, application modernization, legacy PHP migrations and software architecture.

Experience

Professional experience10+ years
Freelancer since2004

Languages

EnglishFluentPolishNative speaker

Project history

Lead PHP Developer

Honki Digital Agency, Poland (Remote)
Digital agency working on client products across construction, fashion e-commerce, and healthcare verticals. Built a document management platform from scratch on Symfony 6.3/7 with Doctrine ORM, MariaDB, and DDD architecture. Implemented JWT auth with refresh tokens, role-based access control, file-attachment subsystem, and legacy data-migration tooling. Led React 18 to 19 and TypeScript modernization. Handled PHP 8 migration, legacy framework maintenance, GTM analytics, and inventory sync for fashion e-commerce. Applied PHPUnit, PHPStan level 6, OpenAPI docs, and GitLab CI/CD with Docker Compose.

Lead PHP Developer

Adescom, Poland (Remote)
PBX/Contact-center platform modernization migrating legacy CodeIgniter telephony platform to Symfony 7.4 / PHP 8.4. Designed and implemented modules across the entire product including Kontakty, SMS, Campaign, Fax, IVR, Wallboard, and admin panel. Built REST API with JWT auth, CQRS message handlers, multi-tenancy support, and OpenAPI 3.0 documentation. Implemented async workers with Symfony Messenger and Mercure real-time updates. Created multi-database integration layer over five Doctrine connections. Managed Doctrine migrations, data migration commands, and bidirectional legacy sync. Led the PHP 8.4 / Symfony 7.4 upgrade across the platform.

PHP / DevOps Consultant

Benefit Systems S.A., Poland (Remote)
Consultancy engagement for one of Poland's largest HR/benefits platforms. Introduced feature flags to enable safer and more frequent deployments. Bridged the gap between development team and management by identifying and addressing unmet developer needs around tooling, processes, and workflow bottlenecks. Conducted system architecture review and provided scalability recommendations; consulted on CI/CD best practices and release management.

Senior PHP Developer / DevOps

Me Learning Ltd, UK (Remote)
Multi-tenant SaaS Learning Management System serving UK corporate and public sector clients. Sole backend developer building 11 Symfony 7 / PHP 8.2 microservices with CQRS on Symfony Messenger, DDD bounded contexts, and SNS/SQS event-driven routing. Optimized high-volume MySQL queries, introduced Redis caching with tag-based invalidation, and eliminated enrolment race conditions. Patched DQL injection vulnerabilities, hardened JWT auth, and led a 52-item security/data-consistency audit. Managed full AWS infrastructure via Terraform (~216 resources) with CI/CD on Bitbucket Pipelines. Automated code review and analysis workflows using AI tooling.

PHP Developer

Nordic Easy AS, Norway (Remote)
Applications for Scandinavian real estate market including property listing platforms, web2print, broker and buyer/seller portals. Designed, architected, and deployed applications for property sales with REST/SOAP API integrations and BankId authentication. Built online payments, product catalogs, and transactional workflows with batch image/PDF processing. Managed MySQL/PostgreSQL databases and optimized queries for high-traffic scenarios on OVH and AWS infrastructure.

PHP Developer

amateurmodels.com, USA (Remote)
Security fixes, Stripe payments integration, test coverage, and legacy refactoring.

PHP Developer

MyServiceHistory.info, Ireland (Remote)
AutomotiveTech startup: product listings, user management, and API integrations using Zend Framework.

PHP Developer

Nasali.pl, Poland
Sports SaaS for volleyball teams: league management and attendance tracking using Silex, Twig, and PHPUnit.

PHP Developer

Upper Silesian Regional Development Agency Co., Poland
Full development lifecycle for internal systems including EU grants project management, bulk mail application, and CMS systems using CodeIgniter, PHP, MySQL/PostgreSQL, Linux, PHPUnit, and jQuery.

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