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Senior Mobile App Developer (Kotlin)

Netcompany


Job Location:

London - UK

Monthly Salary: Not provided by the employer
Posted: 25 September 2026 (2 days ago)
Application Deadline: 23 December 2026
Vacancies: 1 Vacancy

Job Summary

We are seeking a talented Mobile App Developer with Kotlin expertise to join our growing mobile development team. As mobile-first solutions become increasingly critical to our client delivery we need a skilled developer who can design build and maintain high-quality Android applications and contribute to cross-platform development initiatives. This is an excellent opportunity to work on diverse projects across consulting environments leveraging Kotlin Multiplatform to expand reach and efficiency. 

Key Responsibilities 

  • Design and develop robust Android applications using Kotlin following best practices and architectural patterns 
  • Implement and maintain Firebase services 
  • Develop and maintain cross-platform solutions using Kotlin Multiplatform maximizing code reusability across platforms 
  • Enhance and optimize existing mobile solutions identifying improvement opportunities and implementing technical enhancements 
  • Collaborate with product managers designers and backend developers to translate requirements into scalable mobile solutions 
  • Write clean maintainable code with comprehensive testing and documentation 
  • Participate in code reviews and contribute to continuous improvement of our development processes 
  • Support clients in understanding mobile best practices and GDS service standards where applicable 
  • Troubleshoot and resolve technical issues optimizing app performance and user experience 
  • Contribute to architectural decisions and evaluate emerging technologies 

Qualifications :

Essential:

  • Proven experience developing production Android applications with Kotlin 
  • Hands-on experience with Kotlin Multiplatform development 
  • Hands-on experience with Google Firebase 
  • Experience enhancing and optimizing existing mobile solutions 
  • Strong understanding of mobile development principles and UI/UX considerations 

Desirable: 

  • Familiarity with GDS Service Standard and government digital services 
  • Background working in consultancy or client-facing environments 

Additional Information :

Benefits:

  • Hybrid working model with some flexible working
  • 25 days holiday
  • Private Medical Health care via Vitality
  • Pension contribution Life Assurance
  • Professional certifications supported as part of learning and development.
  • A range of retail discounts to enhance your lifestyle encompassing restaurants supermarkets travel leisure activities and health and well-being services.
  • Access to our Employee Resource Groups our groups represent diverse backgrounds and provide a platform for colleagues to connect learn and support one another.

Join Netcompany where we proudly hold the 5th position on the esteemed UK Top 50 Best Places to Work in the Glassdoor Employees Choice Awards for 2024.

At Netcompany we pride ourselves on our entrepreneurial spirit and our capacity for doing things differently. Our culture is built on fostering low bureaucracy emphasizing high agility and promoting flexibility enabling everyone to contribute their best.

Our journey began in the UK with the acquisition of Hunter Macdonald in 2017. As one of Northern Europes most accomplished IT companies we have expanded our headcount globally to 7400 employees and have offices in UK Denmark Norway Poland Holland and Vietnam.

Netcompany is committed to providing an inclusive and barrier-free recruitment process for anyone wishing to apply for a job with us.  We operate a Disability Confident Interview Scheme which means that we offer guaranteed interviews to all applicants with a disability who meet the minimum criteria for a role. Applicants are asked to opt in so please let us know if you wish your application to be considered under this scheme.

If you need any reasonable adjustments or extra support during the recruitment process please contact us at .

#LI-RS1


Remote Work :

No


Employment Type :

Full-time


About Company

MUST BE BASED IN THE UK AND FULL RIGHT TO WORKJoin Netcompany in leveraging technological innovations to foster societal transformation.Netcompany was awarded 5th position on the esteemed UK Top 50 Best Places to Work in the Glassdoor Employees’ Choice Awards for 2024. As one of the f ... View more

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