Senior PHP Developer

Warsaw (Onsite - near Metro Plac Wilsona)

B2B

About Silk Software House

Silk 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 Role

As 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.

Responsibilities

• Design and develop PHP applications from scratch

• Gather requirements and propose well-reasoned technical solutions

• Design and maintain APIs, internal services, and data exchange systems

• Design and implement CMS systems

• Create new modules and evolve existing systems

• Make architectural decisions and evaluate alternatives

• Review code and support less experienced developers

• Collaborate with DevOps on deployment, CI/CD, and monitoring

Requirement

• This 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 station

• 5+ years of commercial experience as a PHP Developer

• Very good knowledge of PHP 8.1+

• Strong commercial experience with Symfony or Laravel

• Deep understanding of relational databases (MySQL/PostgreSQL)

• Strong knowledge of OOP principles, design patterns, and coding standards

• Experience with automated testing and testing concepts

• Good understanding of application security and common vulnerabilities

• Solid understanding of Git and software development workflows

• Experience working in a team using Agile methodologies

• Ability to independently gather requirements, design solutions, and justify decisions

• Effective use of AI-assisted development tools (ChatGPT, Claude, Cursor, etc.)

• English at B2+ level

Nice to Have

• Docker and containerized environments

• CI/CD pipelines (GitLab or GitHub)

• Monitoring and observability tools

• Experience in fintech or high-traffic systems

• Basic frontend knowledge (HTML, CSS, JS)

Rates (B2B)

• 110-140 PLN / hour

Recruitment Process

• Intro call (30 min)

• Senior-level technical interview

• Architecture & decision-making discussion

• Offer