Антон

Anton Labenskyi
Senior software / Flutter engineer
Software engineer with 8+ years of experience building and scaling production-
grade mobile and web applications using Flutter, native iOS, and Android
technologies. Specialises in clean, layered, and offline-first architectures, domain-
driven design, and security-critical systems. Drives cross-platform architecture
decisions, performance optimisation initiatives, and CI/CD automation efforts.
Applies OWASP security best practices, including OWASP Top 10 and MASVS
guidelines, and incorporates GDPR and privacy-by-design principles when
developing applications that process sensitive user data.

CORE SKILLS
[відкрити контакти](див. вище в блоці «контактна інформація») Mobile stack: Flutter, iOS, Android
[відкрити контакти](див. вище в блоці «контактна інформація») Web stack: SvelteKit, Lit, React.js, Web Components
[відкрити контакти](див. вище в блоці «контактна інформація») Languages: Dart, JS/TS, Java, Kotlin, Swift, D, Python
Architecture: Clean, Layered, Offline-first, DDD, SOLID, feature-
first/layer-first structure.
EDUCATION
Native & Low-level: Dart FFI, Platform/Event Channels, Native
Master’s Degree Modules, WASI

State University of Trade and Tooling: Dart DevTools, Firebase App Distribution, TestFlight, GitLab

Economics Runner and pipelines, Docker, Kubernetes
Security: OWASP mobile, MASVS, GDPR
2007-2012
Testing: Unit, widget, golden and integration testing
Kyiv, Ukraine

SOFT SKILLS WORK EXPERIENCE
Systems thinking with strong Mobile Lead Developer Apr 2020 – Feb 2026
architectural awareness Decard AG l Triesen, Liechtenstein
Continuous learning mindset Designed and led the development of a non-custodial cryptographic
with rapid adoption of new wallet application, integrating a native module via a Dart FFI layer to
technologies ensure all sensitive operations and wallet data remain isolated in
Open to feedback and native memory.
continuous self-improvement Designed and delivered core end-to-end wallet features, including
Constructive, solution-oriented seed phrase generation and recovery, PIN and biometric
communication authentication, balance and transaction management, transaction
signing, QR scanning, in-app notifications, and store-compliant
LANGUAGE metadata handling.
Developed, published to pub.dev, and maintained an open-source
English Dart plugin exposing secure wallet APIs.
Ukrainian Actively participated in and led architecture design sessions across
multiple applications, defining shared architectural principles, cross-

LINKS platform boundaries, and long-term scalability strategies.
Owned the full mobile delivery lifecycle: requirements analysis, UI

https://pub.dev/packages/tagion_dart_api implementation, backend integration, CI/CD pipelines, automated
testing, Firebase distribution, and App Store / Play Store releases.

Anton Labenskyi
Senior software / Flutter engineer

WORK EXPERIENCE
Designed and implemented proof-of-concept (PoC) solutions to evaluate new technologies, architectural approaches,
and cryptographic integrations, reducing technical uncertainty before full-scale adoption and enabling informed
architectural decisions.
Designed, developed, and maintained a PWA / web application using Svelte and Lit components as a full-featured
alternative to the mobile app, with complete support for camera, biometric authentication and cryptographic operations
including keypair generation, seed restore, encryption/decryption, transaction signing, and wallet state access.
Took part in the design and development of a specific WASI API to enable browser support for native cryptographic
functionality; fully implemented and maintained a corresponding npm private package, including versioning, publishing,
and ongoing support.
Led regular code reviews across mobile, web, and native modules; mentored developers through structured technical
feedback.
Established and documented internal engineering standards (tech stack approval, branching strategy, commit
conventions, and code formatting guidelines) and produced comprehensive architectural documentation across multiple
applications.

Full-Stack Developer Oct 2017 – Apr 2020
Retail Chain of Luxury Drinks l Kyiv, Ukraine
Designed and developed a custom CRM system for internal accounting and management, implementing a microservice-
based backend architecture using Java Spring Boot, with deployment and orchestration handled via Docker and
Kubernetes.
Built a mobile achievement and gamification platform for personnel, developing backend services (Spring Boot)
alongside client applications in Flutter and native Android, iOS, delivering end-to-end functionality across platforms.
Established CI/CD workflows for automated testing and application delivery, leveraging Docker-based pipelines,
platform-specific testing tools for backend and mobile applications, and Grafana for system monitoring and
observability.

Java Developer Aug 2015 – Apr 2017
DATAS Technology l Kyiv, Ukraine
Contributed to the development of backend services using Java and Spring Boot, implementing REST API endpoints
under guidance of senior engineers.
Worked with relational databases, writing basic queries and assisting with schema updates.
Participated in the implementation of business logic and validation layers, following existing architectural guidelines.
Fixed bugs in existing services, improving code stability.
Worked with CI/CD pipelines, running builds and tests and learning release processes.