Senior Mobile Engineer

Join the ANNA Money Team: Revolutionising Business Administration for UK Freelancers and SMEs.

At ANNA Money, we're more than just a mobile app and business current account. We're a dynamic solution designed explicitly for UK-based freelancers, small businesses, and the creatively inclined. Our mission is to streamline the daunting world of taxes, invoicing, and administrative tasks, allowing business owners to direct their focus where it truly belongs – on their passions and business growth. By harmonising advanced AI technologies with our acclaimed customer service, we aim to simplify our customers' professional lives.

Our Vision:

ANNA Money endeavours to alleviate the burden of time-consuming administrative tasks that every small business owner inevitably encounters. Our core objective is to automate these repetitive tasks, enhancing our customers’ efficiency, speed, and overall ease. This dedication to automation supports our customers’ business operations and allows them the freedom to dedicate time to other critical aspects of their business.

Our Team:

Globally, ANNA Money boasts a diverse team of approximately 150 professionals, primarily consisting of adept software developers and innovative data scientists dedicated to advancing our product offerings. Presently, over 100,000 customers trust ANNA for their banking and administrative needs.

Our Approach:

We pride ourselves on remaining at the forefront of technological advancements, employing a modern technical stack and methodologies that enable us to deploy code to production an impressive 750 times per month.

Join Us:

If you're driven by innovation, hold a passion for creating impactful solutions, and are looking for an opportunity to contribute to the revolutionising of business administration for freelancers and small businesses across the UK, ANNA Money is your platform to thrive. Together, let's transform the way businesses approach admin and banking – making it smarter, faster, and more efficient for everyone.

What You’ll Do

• Design a scalable architecture
• Collaborate closely with product and design teams and proactively unblock dependencies across teams
• Ensure consistent UX and functionality across Android, iOS, and web platforms
• Identify edge cases, resolve bugs, and maintain high standards of test coverage
• Shape and evolve ANNA’s mobile development practices and CI/CD workflows
• Facilitate knowledge-sharing across mobile platforms and advocate for best practices
• Drive A/B experiments improving conversion, advocate inclusive design and run performance budgets
• Lead incident responses and reduce repeat incidents 

Our Technology Stack

• Flutter
• Kotlin / Java
• Jetpack Compose
• RxJava / Coroutines
• Proto3 / WebSockets / REST APIs
• CI/CD Pipelines

#LI-LS1

Technical Skills

• Experience with Flutter for cross-platform development (iOS, Android, Web).
• Solid background in Kotlin / Java, with knowledge of Jetpack Compose.
• Familiarity with RxJava / Coroutines for managing asynchronous tasks.
• Experience integrating with Proto3, WebSockets, and REST APIs.
• Good understanding of CI/CD pipelines and automated testing frameworks.
• Ability to design and implement scalable mobile architectures.

Experience

• Proven track record of shipping production-ready mobile apps.
• Experience working in cross-functional teams (engineering, design, product).
• Previous involvement in incident response and root cause analysis.
• Hands-on experience running A/B testing and performance monitoring.
• Familiarity with inclusive design and accessibility best practices.

Soft Skills & Behaviours

• Strong collaboration skills — able to work closely with design, product, and backend teams.
• Proactive in unblocking dependencies and supporting peers.
• Passion for knowledge sharing and mentoring within mobile teams.
• Comfortable with a fast-paced, high-deployment environment (750+ monthly releases).
• Ability to balance speed with quality, ensuring high test coverage and bug resolution.

Preferred Profile

• 5+ years in mobile engineering, with at least 2 years using Flutter.
• Experience in a fintech, SaaS, or high-growth startup environment.
• A problem-solver who thrives in innovation-driven teams.
• Interest in AI-powered products and modern automation approaches.

What You’ll Get

• Competitive salary
• Hybrid working with a central London office
• Private Healthcare Plan
• Pension Plans
• Employee Assistance Programme (Counselling)
• Work From Home flexibility
• Training & Development Budget of £1,000 per annum
• Take a Break Budget (Holiday Money) of £1,000 per annum
• Childcare Voucher Scheme
• The opportunity to impact 70,000+ monthly active users and receive real-time feedback