# FullStack Engineer (TypeScript, React, and Next.js) at GFT Technologies

> Open job at GFT Technologies in Kraków, Poland. Workplace: On-site.

Source: Poland Dev Jobs, https://poland-devjobs.com/jobs/gft-technologies-fullstack-engineer-typescript-react-and-next-js-18u2x1n
Posted 4 November 2026. Last checked on the employer's career site: 6 November 2026.

## Facts

- Company: [GFT Technologies](https://poland-devjobs.com/companies/gft-technologies)
- Location: Kraków, Poland
- Workplace: On-site
- Employment type: Full-time
- Salary: zł 11k–18k / month
- Polish: Not required
- Skills: Java, Next.js, Playwright, PostgreSQL, React, Redux, Spring, TypeScript
- Not mentioned in the job post: visa sponsorship, relocation, where you can apply from

## Job description

**Type of contract:** Employment contract

**Salary range:** 10900 - 17500 PLN gross

**What will you do?**

You will build and improve user-facing experiences and product APIs that support modern data services. The role combines strong frontend development with practical full-stack delivery, translating product needs into accessible, reliable, and secure solutions across browser and service layers.

**Your tasks**

- Design, build, and maintain TypeScript and Next.js user interfaces that are responsive, accessible, and aligned with business needs
- Deliver end-to-end product features across frontend and backend integration layers
- Collaborate with product, UX, backend, and data teams to refine user journeys, data contracts, and acceptance criteria
- Build secure and maintainable frontend solutions using reusable components and well-structured state management
- Integrate frontend applications with Java 21 and Spring Boot services
- Diagnose and resolve UI defects, API integration issues, performance bottlenecks, and production issues
- Develop and maintain unit, integration, and regression tests
- Support application quality through observability, logging, performance tuning, and production follow-up
- Maintain high engineering standards for code quality, code reviews, secure development, and deployment readiness

**Your skills**

- Strong experience with TypeScript, React, and Next.js
- Good understanding of modern frontend architecture, component design, state management, routing, API integration, and accessible UI patterns
- Experience delivering full-stack features across browser and service layers
- Working knowledge of Java and modern Spring Boot application patterns
- Experience with REST APIs, DTOs, authentication flows, and integration contracts
- Ability to write clean and maintainable code and participate in technical design and code reviews
- Understanding of secure frontend and backend practices, including token handling, role-based access, and safe data handling
- Strong problem-solving skills and experience investigating production issues across UI and API layers
- Good communication and collaboration skills

**Nice to have**

- React Query, Redux Toolkit, TanStack Query, or similar state management and data-fetching solutions
- Axios, forms, validation, and component libraries
- Spring Web, Spring Security, or Spring Data JPA
- PostgreSQL, database design, or database migration patterns
- OpenTelemetry, Micrometer, structured logging, or production monitoring tools
- Cloud-native or containerised delivery environments
- JUnit 5, Vitest, Playwright, or equivalent testing frameworks

**We offer**

- Hybrid work in our client's office (Kraków) 6 days a month
- Working in a highly experienced and dedicated team
- Benefit package tailored to your needs (medical, sport, lunch subsidy, life insurance, etc.)
- Online training and certifications
- Access to e-learning platform
- Social events

## How to apply

Apply on the job page, https://poland-devjobs.com/jobs/gft-technologies-fullstack-engineer-typescript-react-and-next-js-18u2x1n: its Apply button opens the employer's own application page.

## More jobs from GFT Technologies

- [FullStack Consultant (TypeScript, React, and Next.js)](https://poland-devjobs.com/jobs/gft-technologies-fullstack-consultant-typescript-react-and-next-js-5jqiji6): GFT Technologies, Kraków, Poland. On-site. Salary: zł 90–125 / hour (B2B). Posted 4 November 2026.
- [Senior Fullstack Consultant (Java & React)](https://poland-devjobs.com/jobs/gft-technologies-senior-fullstack-consultant-java-react-dfj6599): GFT Technologies, Kraków, Poland. On-site. Salary: zł 125–160 / hour (B2B). Posted 3 November 2026.
- [Senior DevOps Consultant](https://poland-devjobs.com/jobs/gft-technologies-senior-devops-consultant-969cnpg): GFT Technologies, Kraków, Poland. On-site. Salary: zł 136–170 / hour (B2B). Posted 3 November 2026.
- [Senior DevOps Consultant (Kafka)](https://poland-devjobs.com/jobs/gft-technologies-senior-devops-consultant-kafka-35tb1rg): GFT Technologies, Kraków, Poland. On-site. Salary: zł 135–170 / hour (B2B). Posted 30 October 2026.
- [Senior DevOps Engineer (Kafka)](https://poland-devjobs.com/jobs/gft-technologies-senior-devops-engineer-kafka-xycd02s): GFT Technologies, Kraków, Poland. On-site. Salary: zł 16k–24k / month. Posted 30 October 2026.