May 27, 2026
Principal Fullstack Engineer (React + Node.js)
Senior • Remote
170 - 220 PLN
Warsaw, Poland
Craftware is a technology company of over 500 experts, empowering large organizations to solve complex business challenges with modern IT solutions - from sales systems and automation to data platforms and AI. We operate where technology must be reliable, secure, and scalable. We deliver end-to-end projects: from analysis and architecture through implementation to development and maintenance. We are a trusted partner of industry leaders such as Salesforce, Veeva, UiPath, and Databricks.
Model: remote
Employment type: full-time
Position Context:
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
Responsibilities:
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
Requirements:
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
Employment conditions:
B2B contract,
Daily support from team leaders,
Dedicated certification budget,
Assistance in defining and support in your development path,
Benefits package,
Integration trips/events.
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Warsaw, Poland
70 - 120 PLN
🏢 Summary: Role focused on organizing and facilitating workshops, creating educational and communication materials, and supporting adoption of a Data & AI platform within Agile teams. The position combines coordination of Agile processes with development of onboarding and training content. Work is delivered in a remote/hybrid model under a B2B contract. 🗂️ Requirements: Experience in roles such as Project Manager, PMO, or Scrum Master, Experience in conducting workshops or training sessions, Experience working in Agile environments, Ability to create educational materials and professional presentations, Knowledge of tools such as PowerPoint, Miro, Confluence, Interest in Data & AI domain, English proficiency at minimum B2 level 📃 Skills: Agile, Scrum, PowerPoint, Miro, Confluence, Data, AI 🏢 Description: Craftware to ponad 500-osobowa firma technologiczna, która wspiera duże organizacje w rozwiązywaniu złożonych problemów biznesowych za pomocą nowoczesnych rozwiązań IT – od systemów sprzedażowych i automatyzacji, po platformy danych i AI. Działamy tam, gdzie technologia musi być niezawodna, bezpieczna i skalowalna. Realizujemy projekty end-to-end: od analizy i architektury, przez wdrożenie, aż po rozwój i utrzymanie. Jesteśmy zaufanym partneremi takich technologi jak Salesforce, Veeva, UiPath i Databricks. Model: praca zdalna/hybrydowa (czasem może być potrzeba przyjścia do biura np. podczas organizacji warsztatów stacjonarnych) Rodzaj zatrudnienia: pełny etat Zadania: Organizacja i prowadzenie warsztatów (online i stacjonarnych) – od definiowania celów po przygotowanie agendy i materiałów Tworzenie i rozwijanie materiałów onboardingowych Przygotowywanie materiałów komunikacyjnych (newslettery, instrukcje, artykuły, komunikaty) Opracowywanie profesjonalnych prezentacji na potrzeby spotkań, warsztatów i komunikacji z interesariuszami Wspieranie rozwoju i adopcji platformy Data & AI poprzez porządkowanie wiedzy, tworzenie materiałów edukacyjnych oraz koordynację inicjatyw dla użytkowników Wsparcie zespołów pracujących w Agile – koordynacja ceremonii, usprawnianie procesów, usuwanie przeszkód Identyfikowanie potrzeb szkoleniowych oraz inicjowanie działań rozwojowych Współpraca z interesariuszami i zbieranie feedbacku w celu ulepszania procesów i materiałów Wymagania: Doświadczenie w takich rolach jak Project Manager, PMO, Scrum Master Doświadczenie w prowadzeniu warsztatów lub szkoleń Umiejętność tworzenia angażujących materiałów edukacyjnych i prezentacji Doświadczenie w pracy z zespołami w środowisku Agile Umiejętność koordynowania działań i pracy w dynamicznym środowisku Wysokie kompetencje komunikacyjne i organizacyjne Samodzielność i proaktywne podejście Zainteresowanie obszarem Data & AI Bardzo dobra znajomość narzędzi do tworzenia materiałów (np. PowerPoint, Miro, Confluence) Bardzo dobra znajomość języka angielskiego, pozwalająca na swobodną, codzienną komunikację (min. B2) Warunki zatrudnienia: Kontrakt B2B, Codzienne wsparcie liderów zespołów, Dedykowany budżet certyfikacyjny, Pomoc w określeniu i wsparcie w Twojej ścieżce rozwoju Pakiet benefitów, Wyjazdy integracyjne.
Technology
Craftware
Full Stack Developer (Java/Spring Boot, Angular)
Mid
Remote
Warsaw, Poland
19,000 - 23,000 PLN/mo
🏢 Summary: Oferta dotyczy pracy zdalnej na pełny etat przy rozwoju aplikacji backendowych i frontendowych w architekturze mikroserwisowej z wykorzystaniem Java/Spring Boot oraz Angulara. Zakres obejmuje rozwój funkcjonalności, testy automatyczne, wdrożenia, analizę podatności oraz współpracę z zespołami UX/UI i frontend/backend. Przewidziano umowę o pracę, budżet certyfikacyjny i wsparcie rozwoju. 🗂️ Requirements: Doświadczenie w Angular, Doświadczenie w Java, Znajomość Spring Boot, Znajomość architektury mikroserwisowej, Doświadczenie w testach jednostkowych, Znajomość JUnit, Znajomość SonarQube, Umiejętność współpracy frontend/backend, Język angielski B2/C1, Możliwość rozpoczęcia pracy od sierpnia 📃 Skills: Java, Spring, SpringBoot, Angular, JUnit, SonarQube, Microservices, HTML, CSS, TypeScript 🏢 Description: Craftware to ponad 500-osobowa firma technologiczna, która wspiera duże organizacje w rozwiązywaniu złożonych problemów biznesowych za pomocą nowoczesnych rozwiązań IT — od systemów sprzedażowych i automatyzacji, po platformy danych i AI. Działamy tam, gdzie technologia musi być niezawodna, bezpieczna i skalowalna. Realizujemy projekty end-to-end: od analizy i architektury, przez wdrożenie, aż po rozwój i utrzymanie. Jesteśmy zaufanym partnerem takich technologii jak Salesforce, Veeva, UiPath i Databricks. Model: praca zdalna Rodzaj zatrudnienia: pełny etat Zadania: Tworzenie nowych i rozwój istniejących funkcjonalności po stronie backendu w złożonej architekturze mikroserwisowej w środowisku Java/Spring Boot Tworzenie i uruchamianie automatycznych testów jednostkowych po stronie backendu (JUnit) Rozwój i rozbudowa funkcjonalności front-endowych, głównie z wykorzystaniem Angulara Tworzenie i uruchamianie automatycznych testów jednostkowych z wykorzystaniem SonarQube po stronie front-endu Budowa i dalszy rozwój automatyzacji testów Ścisła współpraca z projektantami UX/UI w celu wdrażania atrakcyjnego i przyjaznego użytkownikowi designu Ścisła współpraca między zespołem front-end i back-end w celu zapewnienia płynnej integracji Tworzenie dokumentacji technicznej Wdrażanie na poszczególne środowiska oraz weryfikacja poprawności wdrożeń Analiza podatności i ich eliminowanie po stronie front-endu Wymagania: Doświadczenie w tworzeniu aplikacji front-endowych w Angularze Doświadczenie w tworzeniu rozwiązań backendowych w Javie, w tym ze Spring Boot Znajomość architektury mikroserwisowej Doświadczenie w pisaniu testów jednostkowych (JUnit, SonarQube) Umiejętność pracy w zespole i sprawnej komunikacji między front-endem a back-endem Bardzo dobra znajomość języka angielskiego (min. B2/C1) Możliwość rozpoczęcia pracy od sierpnia Mile widziane: Doświadczenie w tworzeniu automatyzacji testów front-endowych Znajomość zagadnień związanych z analizą i eliminacją podatności (security) Doświadczenie we współpracy z zespołami UX/UI Doświadczenie w projektach wdrożeniowych na wielu środowiskach (staging, produkcja itd.) Warunki zatrudnienia: Umowa o pracę (do 23 000 zł brutto/mies.) Codzienne wsparcie liderów zespołów Dedykowany budżet certyfikacyjny Pomoc w określeniu i wsparcie w Twojej ścieżce rozwoju Pakiet benefitów Wyjazdy integracyjne