~/about
About Me
Senior Android & Kotlin Multiplatform Engineer, UK based passionate about building beautiful applications
Hi, I'm David Cruz Anaya, a UK-based Senior Android Developer passionate about building beautiful and functional mobile applications. I specialize in Android with Kotlin, Jetpack Compose, and cross-platform development with Flutter.
As a Udemy instructor with over 20,000 students, I share my knowledge through free Android development courses. I'm also a YouTube content creator and an active open source contributor.
What I Do
Specialized services tailored to bring your digital ideas to life
Web Development
Next.js, React, TypeScript, Node.js - Building fast, SEO-optimized web experiences with cutting-edge technologies.
View Projects →Mobile Development
Android (Kotlin, Compose), iOS (SwiftUI), and cross-platform (Flutter, KMP) - Delivering polished mobile experiences.
View Projects →API Development
RESTful APIs, GraphQL, Ktor, PostgreSQL - Building robust, secure, and scalable backend architectures.
View Projects →DevOps & Cloud
AWS, Docker, CI/CD, Kubernetes - Automating deployments and ensuring high availability infrastructure.
Learn More →Skills & Technologies
Technologies and tools I work with daily
Frontend
Mobile
Backend
DevOps & Tools
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Work Experience
Senior Software Engineer
Deliveroo
• Developed and maintained features for the Android mobile app, enhancing user experience. • Increased app performance and resolved bugs to ensure seamless functionality. • Tracked analytics to inform decisions and experimented with new features for continuous improvement.
Founder & Android Engineer
Vectencia
Create, develop and release Paglipat.com with Kotlin Multiplatform and Compose Multiplatform for mobile and Next.js for Web.
Mobile Engineering Manager
Sky
Led migration to Jetpack Compose for Sky Go, managed cross-functional team delivering features to 10M+ users. Promoted to KMP Team Lead driving 40% code reuse across platforms.
Engineering Lead
Deltatre
Led development of streaming apps for WWE, GolfTV, and BritBox reaching 5M+ combined users across Android and Fire TV platforms.
Android Developer
Massive Interactive / Deltatre
Developed My5 (Channel 5), WWE, ITV & BBC Britbox, GolfTV & Axis. For Android and iOS/tvOS streaming application with 10M+ downloads. Reduced crash rate by 45%.
Android Developer
IGT UK
Developed playMGM casino application with complex animations and secure payment processing. Created reusable component library.
HTML5 Game Developer
IGT UK (GTECH/Probability)
Built responsive HTML5 casino games for Norsk-Tipping including MegaMillionFlax and JackpotFlax series.
// learning
Education
OTHM Level 6 Diploma
London School of Business and Research (LSBR)
OTHM qualifications at RQF Level 6 represent practical knowledge, skills, capabilities and competences that are assessed in academic terms as being equivalent to Bachelor’s Degrees with Honours, Bachelor’s Degrees, Professional Graduate Certificate in Education (PGCE), Graduate Diplomas and Graduate Certificates.
OTHM Level 5 Extended Diploma
London School of Business and Research (LSBR)
The objective of the OTHM Level 5 Extended Diploma in Business Management qualification is to provide learners with a specialist work-related programme of study that provides a depth of knowledge and understanding of key aspects within the business sector.
Professional Scrum Master I
Scrum.org
PSM I is recognized by the industry as a certification that demonstrates a fundamental level of Scrum mastery. As a PSM I certification holder, you have proven that you understand Scrum as described in the Scrum Guide and how to apply Scrum in Scrum Teams. PSM I holders have a consistent terminology and approach to Scrum. The cost of the PSM I test is $200 USD per attempt. Test passwords do not expire and remain valid until used. See more details below. Verification: https://www.credly.com/badges/11eb2e63-7380-46e9-94a1-31e640d5d5d8
HNC/HND Computing
Arden University
Bachelor's degree in Computer Science with focus on software engineering and mobile development.
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Frequently Asked Questions
Who is David Cruz Anaya?
David Cruz Anaya (davthecoder) is a software engineer and published author based in London, UK, with over 10 years of experience specializing in Android and Kotlin Multiplatform development.
What does David Cruz Anaya do?
He builds web and mobile applications, teaches Android development on Udemy to 20,000+ students, creates content on YouTube, and contributes to open source.
Is David available for speaking, talks, or collaborations?
Yes. David no longer takes on freelance development work, but he is available for tech talks, as well as mindset and mental health talks, and collaborations — get in touch through the contact page.
What technologies does David specialize in?
Android (Kotlin, Jetpack Compose), Kotlin Multiplatform, Flutter, and modern web development with Next.js, React, and TypeScript.
What is the book 'You Are Not That Important' about?
It is David's book about humility and starting before you feel ready — letting go of ego and perfectionism to do meaningful work and ship things that matter.
My Journey
A decade of building digital experiences
Arrived in the UK
Started with €230, no English, and no degree. Slept in a park. Worked at McDonald's. Became a high dependency ambulance crew member.
Self-taught developer
Taught myself to code on a second-hand laptop. Transitioned into software engineering, specializing in Android and Kotlin.
Today
Software Engineer, founder of my own consultancy, published author of "You Are Not That Important", and Udemy instructor with 20,000+ students.