Senior Software Engineer

Cathcart Technology; Scotland; Hybrid; GBP 100,000 - 125,000; Full time

Job summary

A world-class technology company in the United Kingdom is seeking a Senior Software Engineer (Android, Kotlin) to join their mobile platform team. This role offers hybrid working in a dynamic environment, focusing on Android optimization and mentoring other engineers. Candidates should have strong Kotlin experience and familiarity with React Native. The company provides a competitive salary and a strong benefits package to support work-life balance.

Benefits

Competitive salary

Strong benefits package including multiple bonuses

Gym facilities

Hybrid working environment

Qualifications

• Good experience with native Android development using Kotlin.
• Experience in delivering production React Native applications.
• Familiarity with mobile performance profiling and optimization.

Responsibilities

• Optimise native Android components and improve core frameworks.
• Mentor and support other engineers on the team.
• Participate in design discussions and technical decisions.

Skills

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

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.

Qualifications

You’ll ideally have good experience with most of the following;

• 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