Senior PHP Developer

Warsaw (Onsite – near Metro Plac Wilsona)💼 B2BAbout Silk Software HouseSilk Software House builds and maintains business-critical backend and web systems for fintech, payments, and large-scale platforms. We value ownership, strong engineering judgment, and the ability to design solutions, not just implement tickets.Your RoleAs a Senior PHP Developer, you’ll take ownership of backend solutions end-to-end: from gathering requirements, through architecture and implementation, to explaining and defending technical decisions. You’ll work closely with clients and mentor other developers.ResponsibilitiesDesign and develop PHP applications from scratchGather requirements and propose well-reasoned technical solutionsDesign and maintain APIs, internal services, and data exchange systemsDesign and implement CMS systemsCreate new modules and evolve existing systemsMake architectural decisions and evaluate alternativesReview code and support less experienced developersCollaborate with DevOps on deployment, CI/CD, and monitoringRequirementThis role requires full-time onsite work (no remote or hybrid options). Candidates must be willing and able to work from our office near the Plac Wilsona metro station5+ years of commercial experience as a PHP DeveloperVery good knowledge of PHP 8.1+Strong commercial experience with Symfony or LaravelDeep understanding of relational databases (MySQL/PostgreSQL)Strong knowledge of OOP principles, design patterns, and coding standardsExperience with automated testing and testing conceptsGood understanding of application security and common vulnerabilitiesSolid understanding of Git and software development workflowsExperience working in a team using Agile methodologiesAbility to independently gather requirements, design solutions, and justify decisionsEffective use of AI-assisted development tools (ChatGPT, Claude, Cursor, etc.)English at B2+ levelNice to HaveDocker and containerized environmentsCI/CD pipelines (GitLab or GitHub)Monitoring and observability toolsExperience in fintech or high-traffic systemsBasic frontend knowledge (HTML, CSS, JS)Rates (B2B)110–140 PLN / hourRecruitment ProcessIntro call (30 min)Senior-level technical interviewArchitecture & decision-making discussionOffer