Senior Android Developer

WARACLE; Greater London; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

27 days annual leave

Pension 5% matched

Death in Service

Health Cash Plans

Employee Assistance Programme

Group Sickness Cover

Hybrid working

Home office budget

Udemy Business access

Cycle to Work

Gym & retail discounts

Enhanced parental leave

Spirit of Waracle volunteering

Job summary

Waracle in London is seeking a Senior Developer to drive end-to-end Android features across our mobile stack. You will build high-performance components, optimise UI, and collaborate with cross-functional teams.

While Android is your core, you will explore Flutter or React Native as part of a broader mobile ecosystem. You’ll mentor juniors, shape architecture, and contribute to a culture of engineering excellence.

Qualifications

• Proficiency in Kotlin and Java with strong Android SDK knowledge.
• Experience with Jetpack Compose and design guidelines.
• Familiarity with MVVM/MVI architecture and Android Architecture Components.
• Exposure to cross-platform frameworks like Flutter or React Native is valued.

Responsibilities

• Design and deliver end-to-end Android features and subsystems.
• Optimise app performance, accessibility, and responsiveness.
• Mentor junior developers and lead feature workstreams.
• Collaborate with stakeholders and present demos to shape direction.

Skills

Kotlin

Java

Android SDK

Jetpack Compose

MVVM/MVI

Android Architecture Components

Git

Flutter/React Native

Performance tuning

UI tests

Tools

Android Studio

Job description

Waracle are looking for a Senior Developer for an exciting new role joining our world-class digital technology consultancy and home to a diverse, smart, curious and ambitious community of specialists in technology-driven transformation.

We work with ambitious clients to help them solve their biggest business and customer challenges. We help our clients to innovate and create intelligent digital products and services. We thrive on complex challenges and deliver business-critical IT transformation projects, moving seamlessly from strategy, design and delivery to operations.

This is a Hybrid role, offering the flexibility to balance your professional and personal life, with 2 days a week spent connecting with colleagues in our London office or on client site

The Role

We are looking for a self- motivated Senior Developer, proficient in Android mobiledevelopment. In this position, you will drive the end-to-end craft of building, developing, and deploying high-performance Android components and services.

Whilst Android will be your core area of expertise, we’re looking for someone with a curiosity and willingness to work across the wider mobile ecosystem. Experience with, or an openness to working with, frameworks such as React Native and Flutter would be highly valued.

You don’t need to be an expert in every framework -we’re interested in developers who have strong engineering fundamentals, can adapt to different technologies and enjoy learning new approaches to solving mobile challenges!

Key aspects of the role include:

• Technical Excellence & Delivery: Designing and delivering end-to-end features and small subsystems; optimising app performance, accessibility, and responsiveness; and being accountable for successful delivery of features.
• Communication & Stakeholder Management: Explaining technical trade-offs in plain language; and presenting demos confidently to clients and stakeholders to shape tactical direction.
• Leadership & Team Collaboration: Leading delivery of specific features or workstreams; and mentoring junior colleagues in both craft and process.
• Culture & Community of Practice: Regularly mentoring others across the practice; and representing Waracle in interviews and recruitment panels.
• Participating in ad-hoc duties from time to time as required by management.

Research shows that underrepresented groups tend to only apply for roles that they believe they meet 100% of the criteria for. At Waracle, we want to buck that trend! We hire for passion, potential and mindset as much as credentials. If you think you'd be incredible in the role, then apply - even if you don't think you tick every box.

What you'll bring:

• Core Language & Framework Expertise: Exceptional proficiency in Kotlin and Java, backed by a deep understanding of the Android SDK, core threading, offline storage, and performance tuning.
• Modern UI & Design Mastery: Hands-on experience building dynamic, responsive user interfaces with Jetpack Compose, coupled with a firm command of Google’s Android Design Principles and interface guidelines.
• Architecture & Clean Code: Strong practical application of SOLID principles, working comfortably within a modularised codebase, and architecting robust solutions using MVVM/MVI alongside Android Architecture Components and Jetpack libraries.
• Ecosystem & Optimisation: Broad knowledge of the open-source Android landscape- leveraging top-tier third-party libraries for common tasks, benchmarking, and fine-grained optimisation.
• Quality & Engineering Practices: Proven track record in writing reliable UI tests, maintaining clean software development lifecycles, and working fluently with modern code versioning workflows like Git.
• Cross-Platform Knowledge: Direct experience or familiar exposure with cross-platform mobile frameworks such as Flutter or React Native.

What to expect from our hiring process

1. First Hello: An informal chat with your dedicated Talent Attraction Partner to talk about Waracle, what you want out of your next move, salary, benefits, and office hybrid working model.

2. Craft Showcase: A chance to demonstrate your real-world expertise. Depending on the role, this will be a focused take-home task (capped at 2-3 hours to respect your time).

3. Talking Impact: A collaborative deep dive into how you solve problems, work with others, and raise the bar, guided by our core values and competency framework.

Your Talent Attraction Partner will be in your corner through every step right up to your Welcome Ritual on day one.

Our Benefits

We believe in supporting our team, inside and outside of work. Here's a glimpse of what you can expect:

• Rest & Recharge: You'll receive 27 days of annual leave, plus 8 bank holidays, totaling 35 days of holiday to unwind and pursue your passions.
• Financial Future & Security: Plan for retirement with our company-matched 5% pension contribution. For added peace of mind, we also offer a Death in Service benefit, providing 2 x your annual salary for your loved ones.
• Health & Wellness: Our Medicash Health Cash Plans help cover everyday healthcare costs, complemented by an Employee Assistance Programme for confidential support, and Group Sickness Cover for peace of mind.
• Flexible Working: We champion hybrid working, providing a home office setup budget to ensure you're comfortable and productive wherever you are.
• Learning & Development: Invest in yourself with access to Udemy Business and a dedicated learning and development budget for continuous growth.
• Lifestyle Perks: Make the most of our Cycle to Work Scheme, and enjoy exclusive gym and retail discounts.
• Family First: Our enhanced parental leave policies include support for fertility journeys, recognising diverse family needs.
• Community & Connection: We foster a vibrant culture with regular fun meet-ups and lunch on us in the office once a month. You'll also have the opportunity to make a local impact through Spirit of Waracle, our initiative for getting involved in charitable causes locally, building strong team bonds and giving back.

We are an equal opportunities employer and welcome applications from all suitably qualified persons regardless of their race, gender, disability, religion/belief, sexual orientation or age.