About Conversion
Conversion is the largest dedicated conversion rate optimisation (CRO) and experimentation agency in the UK. We help our clients better understand their customers - and translate this insight into action. As a business, our focus is on helping clients create an unfair competitive advantage through experimentation.

We believe that experimentation is not about changing button colours, but about creating an experimentation framework that allows our clients to take calculated risks. This approach allows us to experiment not only on our clients’ websites and apps, but also their pricing, product, and strategy. The nature of experimentation means that we can definitively demonstrate and deliver ROI for our clients.
Our team is made up of a number of specialists and generalists with skills spanning: copywriting, behavioural psychology, user research, analytics, UX design, frontend development, and project management. We’ve delivered results for clients ranging from one-person lead generation sites to the likes of Citrix, The Guardian, and Facebook. We have grown significantly over the last few years and are investing in the next stage of our growth to help us achieve our goal to help our clients start experimenting everywhere.

About the role
As a CRO Mobile App Developer, you will play a pivotal role in crafting and implementing experiments (A/B tests) that optimise user experience, engagement, and conversion rates within our clients' mobile applications. This position demands a strong foundation in mobile app development, encompassing expertise in relevant frameworks like React Native and Flutter, and programming languages such as Swift for iOS and Kotlin for Android. You will utilise your expertise to translate design concepts and user experience improvements into tangible app interfaces. Proficiency in design and prototyping tools, such as Figma or Sketch, will enable you to create and iterate on app interface changes that drive meaningful improvements. Close collaboration with project managers, designers, consultants, QA engineers, and potentially other developers will be essential. Your contribution will be vital in delivering high-impact in-app experiments that align with our clients’ objectives.

Primary purpose
To build and deliver high-quality, bug-free experiments specifically tailored for mobile apps
that meet our clients' objectives.

Key responsibilities
● Build and execute experiments specifically designed for mobile apps, ensuring high
quality and bug-free outcomes.
● Conduct rigorous quality assurance and testing to ensure the mobile app
experiments perform as expected and meet client objectives.
● Work closely with our interdisciplinary team, including Project Managers, Designers,
Consultants, and QA Engineers, to ensure seamless integration of mobile app
experiments into clients' projects.
● Establish and maintain productive relationships with client teams, understanding
their needs, objectives, and preferences in order to deliver tailored solutions.

Behaviours
● Balanced approach of what’s right for the client vs what’s commercially right for the
business
● Eye for detail - spot mistakes that others haven’t
● Proactive approach to clients and workload
● Positive attitude to challenges and change
● Problem solver and fast learner

Skills
● Proficient in translating Figma or Sketch designs into code
● Proficient in mobile app development frameworks like React Native and Flutter and
programming languages such as Swift for iOS and Kotlin for Android
● Proficient in mobile app testing and debugging using tools and methodologies
specific to mobile app development
● Strong understanding of A/B testing principles and methodologies, especially as
applied to mobile apps
● Familiarity with mobile operating systems, including iOS and Android
● Excellent communication skills and the ability to work closely with client teams,
understanding their requirements and objectives
● Strong problem-solving skills to address complex optimisation challenges specific to
mobile app performance

Bonus points
● Mobile app portfolio
● Mobile app A/B testing experience
● Knowledge of App Store Optimization (ASO)
● Cross-platform experience
● Client communication skills

Conversion.com remote jobs

CRO Mobile App Developer (Contract)