Lead Android Engineer · Bluetooth & Hardware Specialist · Engineering Manager
I build production-grade Android systems — from BLE device communication and NFC hardware integration to cloud infrastructure. 13+ years shipping apps used by 300,000+ people, and leading the engineers who build them.
Architecture design, Jetpack Compose UI, MVVM/MVI patterns, Kotlin Coroutines and Flows, Kotlin Multiplatform (KMP), performance optimisation, app security and obfuscation, application publishing.
Delivered apps to 300,000+ users. Led re-architecture with +75% code quality improvement and 20% crash reduction.
Custom BLE GATT and NFC NDEF protocol implementation, Host-Based Card Emulation (HCE), OTA firmware delivery over BLE, modern cryptographic protocols (SPAKE2+, HKDF, EC), Secure Element integration, Nordic Semiconductor SDK.
98% OTA firmware success rate. 50+ custom hardware devices integrated. 40% reduction in device pairing time.
Go (Gin framework) backend services, PostgreSQL and Redis, RESTful and GraphQL APIs, OAuth2, Docker containerisation, CI/CD pipelines across GitHub Actions, GitLab CI, CircleCI, and Azure. AWS infrastructure with ECS, Fargate, and ECR.
AWS Solutions Architect certified. Full-stack ownership from mobile client to production cloud infrastructure.
Beyond writing code — building the teams, processes, and standards that make great software possible consistently.
Over 13 years I've led teams across Romania, Germany, and the US, scaling organisations from 2-person squads to cross-functional teams of 11+. I establish development standards, unblock engineers, define career growth paths, and drive delivery performance — without losing technical depth.
"His contribution were instrumental in helping us and scale fast-growing startups like Flink, going from zero to one million orders per month."
Production systems I've architected, led, and shipped — each with measurable outcomes.
Led end-to-end development of two flagship Android products: a logistics operations platform for delivery fleet operators including Flink, and a BMW & MINI car-sharing app enabling remote vehicle start, access control, and mobile-to-vehicle communication via Bluetooth Low Energy.
Architected the full Bluetooth/NFC feature set on Android — HCE with Secure Elements, custom BLE GATT and NFC NDEF protocols, OTA firmware over BLE, and modern crypto (SPAKE2+, HKDF, EC) for secure pairing.
Led the full re-architecture of an Android app serving seniors with cognitive and behavioral health needs, with a strong focus on accessibility and usability. Drove improvements in scalability, stability, and reliability while establishing team structure, coding standards, and an MVVM architecture with strengthened test coverage. Shipped kiosk-mode and MDM-managed builds with a custom launcher flavor for fleet-deployed devices.
I'm open to senior and lead Android engineering roles, technical consulting on BLE/NFC hardware projects, and collaborations in the Android developer community. Let's talk.