About
Daniel is an external Android consultant with over 7 years of experience in building, modernizing, and scaling complex Android apps and SDKs. He specializes in supporting teams facing architectural, performance, or delivery bottlenecks, particularly in healthcare, finance, telecom, and critical systems.
His core skills include Kotlin, Jetpack Compose, and BLE/IoT integrations, with a strong focus on maintainable architectures. Daniel is well-suited for remote B2B consulting engagements, providing technical direction without the need for full-time hires.
Available for short or long-term collaborations, he has a proven track record of delivering B2B consulting engagements and greenfield projects.
What I'm looking for
I’m looking for remote B2B Android consulting opportunities where I can help teams modernize, scale, or stabilize complex Android applications and SDKs.
I work best with companies that need senior technical ownership in areas such as architecture refactoring, Kotlin migrations/KMM, Jetpack Compose adoption, BLE/IoT integrations, SDK development, or performance/stability improvements.
Open to long-term remote collaborations with product companies, startups, or engineering teams across EU or US.
Experience
EXTERNAL ANDROID CONSULTANT (B2B) – SDKS, ARCHITECTURE & BLE
DAN VENTO
May 2023 – Present
Lead Android consultant for international clients.
• Designed and implemented modular architectures from scratch (Clean, scalable).
• Built SDKs and apps: BLE, MCPTT, AR, QR, security-critical systems.
• Migrated legacy codebases (Java/RxJava → Kotlin/Coroutines/Flow).
• Acted as external technical lead: code reviews, mentoring, CI/CD pipelines.
• Delivered B2B consulting engagements and greenfield projects with VAT invoicing.
Selected projects:
• QR-based logistics app for automated package handling.
• Foreground service & reverse SSH tunnel library (proxy networking).
• MCPTT abstraction SDK for mission-critical communications.
• Augmented Reality app for hospitals.
• Kotlin Multiplatform pilot: migrated shared business logic.
KotlinBLESDK Development
LEAD ANDROID DEVELOPER
INSULCLOCK
Jul 2022 – Nov 2024
• Led Android development, collaborating with iOS Lead in startup environment.
• Migrated Firebase → REST APIs, Java/RxJava → Kotlin/Coroutines/Flow.
• Architected and developed Bluetooth SDK with synchronization and security.
• Designed modular Clean Architecture, CI/CD pipelines, and documentation.
• Implemented test strategies and processes for security & medical certification.
KotlinBluetooth SDK DevelopmentCI/CD
ANDROID DEVELOPER (CONTRACTOR)
HISP
Jun 2023 – Dec 2023
• Contributed to open-source DHIS2 SDK used by WHO/UN in 90+ countries.
• Developed new features, refactoring and bugfixes.
• Migrated SDK from Java/RxJava → Kotlin/Coroutines/Flow for KMM.
• KMM implementations (Ktor, Napier, Okio, etc)
• Wrote instrumented and unit tests, improved CI pipelines.
KotlinKMMOpen Source Development
MID/LEAD ANDROID DEVELOPER
ATOS
Sep 2021 – Jul 2022
• Built and maintained native apps for military, pharmaceutical, and energy clients.
• Designed architectures and managed releases with iOS team.
• Onboarded new devs, assigned tasks, elicited requirements.
• Managed Play Console and Firebase projects.
KotlinArchitecture DesignTeam Management
ANDROID DEVELOPER (CONTRACTOR)
WORDEE
Sep 2018 – Sep 2021
• Built Android app from scratch, new features and bugfixing.
• Managed Firebase integrations and Play Store releases.
• Implemented payments, authentication, REST APIs.
KotlinFirebaseREST APIs
LEAD ANDROID DEVELOPER
TIMINGSENSE
May 2021 – Aug 2021
• Maintained and extended Android apps for timekeeping/sports sector.
• Coordinated features and releases with iOS team.
• Managed 100+ Play Console apps.
KotlinApp ManagementTeam Coordination
JAVA/SQL SOFTWARE DEVELOPER
TLSI
Nov 2020 – May 2021
• Desktop, server, and Android development from scratch.
• Bug fixing, helpdesk support, Azure Active Directory.
JavaSQLHelpdesk Support
VARIOUS EARLY ROLES (SOFTWARE & OTHER)
SPAIN
Sep 2015 – Dec 2018
• Worked in multiple roles across software development, finance, and retail.
• Gained early experience with Java, SQL, desktop apps, IT support, and customer service.
• Developed transversal skills in teamwork, problem-solving, and client communication.
Includes:
• Software Developer Internships (Java, SQL, desktop apps).
• Finance & accounting assistant roles.
• Retail/sales roles (Decathlon, MediaMarkt).
• Note-taker for disabled students.
JavaSQLCustomer Service
Education
University of Harvard
INTRODUCTION TO COMPUTER SCIENCE
2020
Universidad Internacional Menéndez Pelayo
MASTER'S DEGREE IN ARTIFICIAL INTELLIGENCE
Universitat Rovira i Virgili
ACCOUNTING AND FINANCE
2015 – 2020
University of Memphis
QUANTITATIVE FINANCE, DATA ANALYSIS, DATABASE DESIGN
2018 – 2018
Skills
technical leadershipsdk developmentrest apisjavafirebaseci/cdkoindagger hiltdependency injectionroomretrofitmvvmkotlin multiplatformandroid sdkkotlin coroutinesclean architecturebluetooth low energy BleAndroid DevelopmentJetpack ComposeKotlin
Languages
Spanish (Native or bilingual proficiency)Catalan (Native or bilingual proficiency)English (Full professional proficiency)German (Elementary proficiency)French (Elementary proficiency)
