Senior Software Engineer

Cathcart Technology; Easter Howgate; Hybrid; GBP 125,000 - 150,000; Full time

Job summary

A world-class technology company in Edinburgh is seeking a talented Senior Software Engineer specializing in Android/Kotlin to join their core mobile platform squads. This role offers hybrid working, a competitive salary, and a strong benefits package, including bonuses and unlimited holidays. The successful candidate will focus on optimizing Android components and mentoring other engineers while working in an Agile environment. This is a great opportunity to have a real impact in a growing tech sector.

Benefits

Competitive salary

Strong benefits package

Uncapped holidays

Games consoles and pool tables

Gym access

Qualifications

• Strong experience in native Android development and Kotlin.
• Experience in delivering React Native applications is advantageous.
• Familiarity with mobile performance and testing practices.

Responsibilities

• Optimise native Android components for high performance.
• Contribute to React Native performance and maintainability.
• Mentor and support other engineers in the team.

Skills

Native Android development with Kotlin

Delivering production React Native applications

Mobile performance profiling and optimisation

Awareness of best practices and testing

Working effectively within Agile teams

Job description

World-Class Technology company in Edinburgh are looking for a talented Senior Software Engineer (Android/Kotlin) to join one of their core mobile platform squads. Hybrid working, modern tech, and great culture on offer.

The company has been growing steadily and is now recognised as a leader in their field. They’re scaling multiple engineering squads and investing heavily in their mobile platforms - making this a perfect time to join and have a real impact in a growing sector of the business.

You’ll be part of a key product team, focusing on strengthening the foundations of their mobile platform. Your work will centre on optimising native Android components, improving core frameworks, and enhancing tooling to deliver high-performance, scalable mobile experiences. This year, there’s a strong focus on platform performance and Android optimisation, giving you plenty of opportunity to work on challenging and meaningful problems.

They’re an Agile squad of Engineers, covering a range of experience levels. On a day-to-day basis, you’ll work across native Android and React Native codebases - building and refining critical Android features while also contributing to React Native performance and maintainability.

You’ll regularly participate in design discussions and technical decisions, with the freedom to propose solutions and help shape the team’s approach. As a Senior Engineer, you’ll also mentor and support other Engineers, sharing expertise in Kotlin, native Android optimisation, and cross-platform integration.

Ideal qualifications:

• Native Android development with Kotlin
• Delivering production React Native applications
• Mobile performance profiling and optimisation
• Strong awareness of best practices, testing, and CI/CD pipelines
• Working effectively within Agile teams

Highly desirable experience:

• Improving app scalability and performance
• Mentoring and supporting Engineers

They’ve got a custom-built office in central Edinburgh, complete with games consoles, pool tables, and even a gym - where they support hybrid working, with most team members in the office a couple days a week.

In return, they’re offering a competitive salary (happy to discuss prior to submitting an application) and a strong benefits package to match - including multiple bonuses and uncapped holidays.

If you’re keen to find out more, please apply or drop Doug at Cathcart Technology a message.

Cathcart Technology is acting as an Employment Agency in relation to this vacancy.