Senior Frontend Developers - Mobile / Web

Kubo International · English: C1 · 3 days a week in the office · JavaScript · Kotlin · TypeScript · 3 days ago
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Location
In office (Sweden)
Seniority
Senior
Employment
Freelance

Confirmed on the employer's own hiring board on Oct 31, 2026. First seen by Alion on Oct 28, 2026. Kubo International scores B on the Alion truth index.

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Kubo International

Kubo International is a Polish IT and engineering services company that supplies software engineers, testers and other specialists to client projects, including C++ development, automotive test and development engineering and Microsoft 365 administration. It holds ISO 27001, 9001 and 14001 certifications and recruits for roles in Gdańsk, Katowice, Warsaw and other Polish cities. The company is headquartered in Toruń, Poland.
kubo.international · HQ: Toruń, Poland · Engineering Services · IT Staffing & Staff Augmentation · IT Outsourcing & Dedicated Teams · 51-200 employees · Est. 2014

Are you an experienced frontend developer who enjoys building intuitive mobile and web interfaces? We are looking for four Senior Frontend Developers to join a project in the banking sector in Joensuu, Finland. You will create new UI components for Android, iOS and web applications, working in an environment that follows Test Driven Development practices. Bring your frontend expertise and help deliver high-quality digital experiences!

Responsibilities

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    Extensive commercial experience in frontend development at a senior level.

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    Strong expertise in mobile development for Android and/or iOS, or web development using JavaScript frameworks.

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    Practical knowledge of Angular, TypeScript and JavaScript for web-focused development.

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    Experience with Kotlin and Android development and/or iOS application development for mobile-focused work.

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    Hands-on experience with unit testing frameworks and Git; familiarity with Test Driven Development would be an advantage.

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    Fluent English and availability to work onsite in Joensuu three days per week.

Requirements

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    Develop new UI components for Android, iOS and/or web applications, depending on your expertise.

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    Implement web interfaces using Angular, TypeScript and JavaScript.

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    Contribute to mobile application development using platform-specific technologies, including Kotlin for Android.

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    Write and maintain unit tests to support software quality and reliability.

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    Apply Test Driven Development practices and contribute to automated testing.

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    Use Git for version control and collaborate with the development team on delivering frontend functionality.

Benefits

Location: Joensuu, Finland

Work Model: Onsite

Employment Type: Freelance contract assignment, full-time allocation

Assignment Duration: 2 November 2026 - 31 March 2027 with possible extension

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