Senior Full Stack Developer

For our client, we are looking for an experienced Senior Full Stack Developer (Angular + Laravel) to take ownership of a business-critical application, drive a structured handover, lead security remediation, and stabilize the platform.

Role Details

• Contract Type & Rate: B2B contract, 110–130 PLN/h net
• Working Hours: Core working hours until 17:00 plus rotating on-call support until 20:00, shared with another developer
• Language Requirement: Fluent written and spoken English

Key Responsibilities

Transition & Handover

• Participate in structured knowledge transfer with outgoing contractors under NDA
• Review technical documentation
• Fix local development setups, such as missing .env.example files and proxy issues
• Establish baseline metrics

Security & Risk Remediation

• Execute incident-grade response activities
• Revoke and rotate Firebase keys
• Purge secrets from Git history
• Restrict CORS
• Implement rate limiting on authentication endpoints
• Conduct security audits

Stabilization & Development

• Investigate and resolve production issues
• Optimize performance and maintainability
• Assist business stakeholders
• Deliver future platform enhancements

Requirements

Must-Have

• Strong commercial experience with Angular (v2+)
• Practical knowledge of NgRx
• Strong knowledge of Laravel and solid experience with PHP
• Strong TypeScript skills and experience with MySQL
• Hands-on experience taking over and maintaining existing applications
• Practical understanding of web application security best practices
• Ability to work independently and drive technical improvements

Nice-to-Have

• Experience with Firebase
• Security audit and remediation experience
• Knowledge of CI/CD and DevOps practices
• Experience defining and tracking engineering KPIs
• Experience working on software transition, handover, or system stabilization projects