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September 4, 2026
Full Stack Developer
Senior • Remote
100 - 120 PLN/yr
Warsaw, MZ, Poland
Apply now
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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