Craftware
Principal Fullstack Engineer (React + Node.js)
We are looking for a Principal Fullstack Engineer with extensive experience in web development (approx. 8–10+ years) who will play a key role in designing and building modern web portals powered by a headless CMS architecture.
This role combines deep technical ownership, system architecture design, and close collaboration with business stakeholders in an international enterprise environment.
About the project:
You will be part of a team responsible for developing and migrating large-scale web portals built on a headless CMS (Contentful) and a modern content-as-a-service architecture.
The project includes:
- migration of existing portals to a new architecture
- development of next-generation web applications
- improving performance, scalability, and platform stability
- working in a complex enterprise environment with multiple stakeholders
Architecture & Technology
- design and develop scalable web systems using React and Node.js
- define architectural direction across frontend, backend, and integrations
- ensure system quality in terms of performance, security, and observability
- make key decisions regarding refactoring and technical debt
Technical Leadership (IC, not management)
- provide technical leadership across teams and initiatives
- mentor senior and mid-level engineers
- define engineering standards and best practices
- support product decisions from a technical perspective
Stakeholder & business collaboration
- work closely with business and product stakeholders
- identify and communicate technical risks
- influence roadmap and technical priorities
- translate technical decisions into business impact
Operations & ownership
- participate in resolving critical production issues
- stabilize and improve complex enterprise systems
- proactively prevent systemic issues
- 8–10+ years of experience in web software engineering
- strong expertise in React.js and Node.js
- experience building full-stack applications and APIs
- solid understanding of system architecture (e.g. microservices, cloud-native systems)
- experience with headless CMS (e.g. Contentful)
- ability to design systems and make architectural decisions
- experience with Azure or other cloud platforms
- strong communication skills with business stakeholders
- experience working in Agile / Scrum environments
Nice to have
- experience with Remix.js or modern full-stack frameworks
- experience in large-scale migrations or platform transformations
- experience in enterprise or regulated environments
- experience working with distributed teams
- B2B contract,
- Daily support from team leaders,
- Dedicated certification budget,
- Assistance in defining and support in your development path,
- Benefits package,
- Integration trips/events
Integration events
Private medical care (Luxmed or PZU)
Life insurance (Unum or PZU)
Sports card Multisport
Employee referral programs
Psychological support
Offices in Warsaw and Lodz
English language classes
Budget for technical certificates
Discount on Orange products
Co-financing of boat trips
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