Front-End Engineer: React + Cloud (Hybrid, Krakow)

BlackLine; Kraków; Hybrid; PLN 201,000 - 252,000; Full time

Job summary

BlackLine in Krakow is seeking a Front-End Software Engineer on the UI Platform team. This hands-on role focuses on React development, building and maintaining our shared component library and the App Shell to power the enterprise web platform.

You will collaborate with senior engineers, migrate legacy .NET apps to modern React micro-frontends, and work with Java backend services in a cloud-native setup using GCP, Jenkins, GitHub Actions, and Terraform.

Qualifications

• 2–4 years professional software development experience.
• Strong proficiency in JavaScript/TypeScript and React.
• Hands-on backend experience with Java services.
• Experience with cloud-native architectures and CI/CD.

Responsibilities

• Develop and maintain a React-based component library.
• Contribute to the App Shell and micro-frontends.
• Migrate legacy .NET apps to React-based solutions.
• Implement and maintain backend Java services.
• Work with Cloud/DevOps tools and CI/CD pipelines.
• Write tests and ensure code quality.
• Collaborate with senior engineers and perform debugging.

Skills

JavaScript/TypeScript

React

Backend Java

Cloud & DevOps

Tools

GCP

Jenkins

GitHub Actions

Terraform

Webpack

npm

Job description

BlackLine in Krakow is seeking a Front-End Software Engineer on the UI Platform team. This hands-on role focuses on React development, building and maintaining our shared component library and the App Shell to power the enterprise web platform.

You will collaborate with senior engineers, migrate legacy .NET apps to modern React micro-frontends, and work with Java backend services in a cloud-native setup using GCP, Jenkins, GitHub Actions, and Terraform.