Senior Front-End Engineer

United Solutions; Polska; Hybrid; PLN 180,000 - 280,000; Full time

Job summary

United Solutions seeks a Senior Front-End Engineer to build scalable web interfaces for an EdTech initiative in North America. You will collaborate with designers to deliver pixel-perfect UI/UX and integrate with REST/GraphQL APIs. The role emphasizes performance, accessibility, and modern front-end architecture.

You will work in an agile, collaborative environment, applying React 18, Next.js, and TypeScript with modern state management. Knowledge of testing and CI/CD is a plus.

Qualifications

• Expert in React and modern front-end practices.
• Experience with Next.js and component-based architecture.
• Familiar with API integration and async data handling.
• Comfortable in Agile, collaborative teams.

Responsibilities

• Develop and maintain responsive web interfaces using React 18 and TypeScript.
• Collaborate with designers to implement pixel-perfect UI/UX.
• Integrate with RESTful and GraphQL APIs.
• Optimize front-end performance and accessibility.
• Write unit and integration tests using Jest, Vitest, or Cypress.
• Participate in code reviews and contribute to front-end architecture decisions.
• Work with CI/CD pipelines and deployment tools (e.g., Vercel, Azure).
• React 18, TypeScript, Next.js.

Skills

React

Next.js

TypeScript

API integration

Redux

Zustand

React Query

Testing (Jest/Vitest/Cypress)

Agile teamwork

Tools

React 18

Next.js

TypeScript

Storybook

Job description

We are looking for a Senior Front-End Engineer to join a high-impact, mission-driven initiative supporting one of the largest cyber schools in the United States. Our client is transforming digital education for thousands of students across North America. As a trusted IT services provider, we have assembled a world-class engineering team to deliver scalable, secure, and innovative solutions in the EdTech space.

Responsibilities:

• Develop and maintain responsive web interfaces using React 18 and TypeScript
• Collaborate with designers to implement pixel-perfect UI/UX
• Integrate with RESTful and GraphQL APIs
• Optimize front-end performance and accessibility
• Write unit and integration tests using frameworks like Jest, Vitest, or Cypress
• Participate in code reviews and contribute to front-end architecture decisions
• Work with CI/CD pipelines and deployment tools (e.g., Vercel, Azure)
• React 18, TypeScript, Next.js
• GraphQL, REST APIs
• Jest, Vitest, Cypress

Requirements:

• Strong proficiency in React and modern front-end development practices
• Experience with Next.js and component-based architecture
• Familiarity with state management libraries (e.g., Redux, Zustand, or React Query)
• Experience integrating with APIs and handling asynchronous data
• Comfortable working in an agile, collaborative team environment

Bonus Points:

• Experience with micro frontends or modular front-end architecture
• Familiarity with design systems and component libraries (e.g., Storybook)
• Knowledge of performance monitoring tools and front-end observability
• Experience with Azure Blob Storage for handling media assets