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September 4, 2026

Full Stack Developer

Senior • Remote

100 - 120 PLN/yr

Warsaw, MZ, Poland

Responsibilities

  • Participate in structured knowledge transfer and handover activities with the outgoing contractor under NDA.
  • Review technical and operational documentation and identify knowledge gaps.
  • Organize and support show-and-tell sessions with technical and business stakeholders.
  • Define roles, responsibilities, and transition checklists.
  • Create missing .env.example files and unblock local development activities.
  • Resolve local development proxy issues and ensure successful environment setup.
  • Establish baseline metrics for incidents and engineering effort.
  • Execute security remediation activities, including key rotation and credential management.
  • Remove secrets from Git history and audit repositories for exposed credentials.
  • Restrict CORS access and implement rate limiting on authentication endpoints.
  • Validate existing security findings and document the security baseline.
  • Stabilize application environments and development processes.
  • Investigate and resolve production and operational issues.
  • Support business users by addressing technical blockers.
  • Improve application reliability, performance, maintainability, and security.
  • Collaborate with product, business, and technical teams on platform enhancements and growth.
  • Provide on-call support until 20:00 on a rotating basis with another developer.

Requirements

  • Strong commercial experience with Angular (v2+).
  • Strong knowledge of Laravel and solid experience with PHP.
  • Strong TypeScript skills.
  • Practical experience working with MySQL.
  • Hands-on experience with NgRx.
  • Proven experience taking over, maintaining, and supporting existing applications.
  • Understanding of web application security best practices.
  • Ability to work independently and drive technical improvements.
  • Very good command of English, both spoken and written.

Nice to have

  • Experience with Firebase.
  • Experience in security audits and remediation activities.
  • Knowledge of CI/CD and DevOps practices.
  • Experience defining and tracking engineering KPIs.
  • Experience working on transition, handover, or system stabilisation projects.

Offer

  • Private medical care.
  • Co-financing for the sports card.
  • Constant support of a dedicated consultant.

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