Dan Brooke

Adevinta is a global online classifieds specialist.

• Worked as part of a freelance engineering team on a live migration from a legacy in-house image service to a cloud-based platform.
• Migrated hundreds of millions of images and database records through a phased, step-by-step process over several months.
• Implemented migration work within an existing technical design, with a focus on keeping the transition controlled and predictable.
• Used AI coding assistants pragmatically for codebase exploration, implementation planning, refactoring support, and review preparation.
• The migration was delivered on time, moving the service to more scalable and maintainable infrastructure.JVM / AWS / Fastly / Jenkins / CI/CD / cloud migration / backend services

Vandebron supplies 100% renewable electricity directly from local producers to consumers.

• Built JVM services and APIs to onboard third parties as tenants for EV charge points and charge cards.Scala / HTTP APIs / OpenAPI / Swagger / GitHub Actions
• Created shared JVM backend libraries used across the company, while migrating a TypeScript backend system onto the JVM.Scala / ZIO / Pekko / http4s / service migration / shared libraries
• Built backend services to bring Vandebron's charge card roaming platform in-house, allowing users to charge their cars in many more locations across Europe.Scala / REST APIs / service integration
• Migrated all of Vandebron's charge points to third parties when the business decided to shut down its charge point operations.Scala / backend services / API integration

TomTom is a multinational developer and creator of location technology.

• Modernised a Scala service across major runtime and library versions, updating dependencies and replacing unmaintained libraries.Scala / dependency migration / HTTP services

eBay Classifieds Group / Adevinta is the world leader in online classifieds.

• Lead engineer for a Scala integration project migrating the marketing department to Adobe Campaign Manager.Scala / service integration / PGP
• Migrated a high-volume backend service with hundreds of millions of records from MySQL to Cassandra while keeping the service live using dual-writes and dual-reads.Scala / Cassandra / Thrift / live migration

NewMotion was the market leader in Electric Vehicle (EV) charging solutions throughout Europe.

Responsible for the technical direction and lead development of JVM backend services that enabled EV drivers to charge across a broad international roaming network. This included:

• Aggregating real-time data from multiple charge point operators and serving it to mobile clients.Scala / HTTP APIs / real-time data
• Building backend APIs that allowed drivers to start and stop charging sessions from the mobile app and view live session information.Scala / backend APIs / mobile services
• Designing B2B services that enabled other mobility card providers to offer EV charging through NewMotion's roaming network.Scala / B2B APIs / roaming services

Prepay Solutions is the market leader in designing and delivering stored-value card solutions.

• Developed a web-based configuration tool that allowed non-technical users to manage stored-value card setup.JVM / Spring / JavaScript / jQuery

Xenicom (later Andrew Network Solutions) developed products for the mobile telecoms industry.

• Developed tools to help mobile operators roll out and upgrade their base stations.Delphi / JVM

Health International provided solutions to the healthcare industry.

• Led development of a new Windows-based version of a patient care survey tool.Delphi