Senior Frontend Developer (React)

Motife Sp. z o.o.; Kraków; Hybrid; PLN 180,000 - 240,000; Full time

Job summary

A global oncology therapy company in Krakow is seeking a Senior Frontend Developer to enhance their web applications. You will collaborate in a hybrid environment, integrating with multiple systems while ensuring high-quality UI. Ideal candidates have 8+ years in IT with 4+ years in React.js. The position offers a competitive salary along with performance bonuses and equity options.

Benefits

Annual performance bonus: 5%

Equity package

Competitive compensation

Qualifications

• 8+ years in IT, including 4+ years working with React.js.
• Experience building integrations and working with APIs.
• Proven delivery of high-quality software in enterprise environments.

Responsibilities

• Build and maintain modern React-based applications.
• Develop reusable UI components and frontend libraries.
• Integrate with APIs and backend services.
• Own key frontend deliverables and identify risks and improvements.
• Mentor developers and promote best practices.

Skills

React.js

API integrations

CI/CD

Git

Docker

Azure DevOps

Problem-solving

Communication in English

Job description

We’re hiring on behalf of a global, publicly traded oncology company that’s redefining how solid tumors are treated through an innovative therapy based on Tumor Treating Fields (TTFields). Their mission is to improve and extend the lives of patients with cancer by delivering safe, non‑invasive treatment options, while continuously advancing scientific and technological innovation.

You will join an inclusive, international environment where collaboration, curiosity, and patient impact are at the heart of every decision.

As a Senior Frontend Developer (React), you will join the Integration & Development team in the company’s Krakow technology hub. You’ll design and build modern web applications that integrate with a wide range of internal systems. You’ll take ownership of key frontend solutions used across global business units, ensuring they are intuitive, performant, and secure.

Key takeaways:

• Salary: 20 000 – 25 000 PLN gross on the Contract of Employment (B2B is also an option)
• Working model: Hybrid, 2 days per week from the office (flexible)

responsibilities :

• Frontend Development:
• Build and maintain modern React‑based applications.
• Develop reusable UI components and frontend libraries.
• Ensure high‑quality, secure, and performant code.
• Integrations:
• Integrate with APIs (REST, SOAP, OData) and backend services.
• Support integrations with SAP and other internal systems.
• Technical Ownership:
• Own key frontend deliverables and identify risks and improvements.
• Mentor developers, promote best practices, and conduct code reviews.
• Drive continuous improvement of development processes.
• Work closely with backend, architects, and business stakeholders.
• Translate business needs into clear technical solutions.

requirements-expected :

• 8+ years in IT, including 4+ years working with React. js.
• Experience building integrations and working with APIs.
• Knowledge of CI/CD, Git, Jenkins, Docker, and Azure DevOps.
• Proven delivery of high‑quality software in enterprise environments.
• Strong problem‑solving skills and focus on scalable, high‑performing solutions.
• Experience with ERP integrations (e. g. , SAP) is a plus.
• Customer‑focused approach and sense of ownership.
• Excellent communication skills in English.
• Comfortable working in an international, fast‑paced environment.

offered :

• Competitive compensation package (annual performance bonus: 5% and equity package).