Android Developer

SR2 | Socially Responsible Recruitment | Certified B Corporation™; Bath; Hybrid; GBP 50,000 - 70,000; Full time

Job summary

SR2 | Socially Responsible Recruitment | Certified B Corporation™ is looking for an Android Engineer based in Bath, UK. The role focuses on building high-quality mobile features with Kotlin in a mission-driven environment. Key responsibilities include improving legacy code, collaborating on API integrations, and implementing payment flows. Applicants should have strong Kotlin experience, a modern approach to Android development, and a pragmatic mindset towards quality assurance. This position requires occasional onsite work in Somerset.

Qualifications

• Strong commercial experience building production Android apps with Kotlin.
• Solid understanding of modern Android development including Jetpack and coroutines.
• Experience working with APIs, data modelling, and performance considerations.

Responsibilities

• Build high-quality features using Kotlin.
• Integrate and collaborate on API/data contracts.
• Improve legacy areas and raise engineering standards.
• Collaborate closely with product and operations.

Skills

Building production Android apps with Kotlin

Modern Android development (Jetpack, coroutines/Flow)

Working with APIs and data modelling

Testing mindset with a focus on quality

Confidence making technical decisions

Experience with Firebase and Firestore

Payments integrations (e.g. Stripe)

Modernising legacy codebases

Event-driven backends exposure

Job description

Remote / Hybrid: Somerset-based client – onsite working a day or two a week is preferred

If you are an Android Engineer looking for a culture-first, mission-driven organisation where your work will have a real-world impact on people’s lives – then this could be the role and company for you.

SR2’s client has a consumer facing platform which interacts with customers via mobile apps. You’ll take ownership of major parts of our clients Kotlin mobile experience across two apps, working in a small, high-trust team where engineers have genuine input into what gets built and how.

This is a build-and-ship role: balancing reliability and performance improvements with fast, iterative feature delivery.

Overview:

• Build high-quality features using Kotlin (Jetpack Compose where suitable, otherwise Views)
• Integrate and collaborate on API/data contracts with REST services as well as real-time gRPC based services
• Implement payment flows where needed (e.g. Stripe)
• Improve legacy areas and raise engineering standards (architecture, testing, CI/CD)
• Enhance performance, reliability, and offline capabilities
• Collaborate closely with product and operations to ship usable releases quickly

Requirements:

• Strong commercial experience building production Android apps with Kotlin
• Solid understanding of modern Android development (Jetpack, coroutines/Flow, lifecycle, dependency injection)
• Experience working with APIs, data modelling, and performance considerations
• A testing mindset with a pragmatic approach to quality (unit/instrumentation where appropriate)
• Confidence owning large features and making sound technical decisions
• Firebase experience (especially Firestore / real-time data)
• Payments integrations (e.g. Stripe)
• Experience modernising legacy codebases
• Exposure to event-driven backends

Interview Process:

• Technical interview
• Final interview with leadership

Please apply with a copy of your CV and Emma from SR2 will contact potential candidates regarding next steps.