Principal Mobile Engineer with 10+ years delivering high-impact native
& hybrid apps (Swift, Kotlin, React Native, Capacitor/Ionic) across
HR, logistics, IoT, fintech and retail domains. I architect unified
mobile platforms, accelerate performance (e.g. 50% cold start
improvement), and scale usage (e.g. 3x active user growth) while
reducing technical debt and dependency risk via custom native bridges.
Comfortable reviving legacy codebases and shaping greenfield strategy.
Hands-on across mobile CI/CD, offline architectures, BLE/IoT
integrations, and developer enablement. Build side projects in Node.js
& Python on AWS/GCP and prototype hardware /
3D printed solutions
to explore product feasibility.
Experience
Principal mobile developer
Tellent |
- Present
HR application
Lead conversion of existing React web application into a
performant, unified native mobile experience.
Impact:Design and implement mobile architecture;
coordinate cross-team collaboration & workflow optimization; lead
development of critical platform capabilities; convert existing
web applications to native with minimal code changes/resources;
architect unified mobile platform integrating multiple web apps
into a cohesive experience.
Tech stack:React, Capacitor, Node.js, Elixir
Senior mobile developer
Tellent (formerly Recruitee) |
-
Companion App for Applicant Tracking System
Mobile app focused on quick, frequent operations on the go.
Team: 5 (sub-team) within 40+ engineering org
Impact:Owned mobile & PWA lifecycle (development,
deployment, monitoring, infrastructure); tripled user base and
increased product awareness/independence; improved cold startup
performance by 50%; developed custom native plugins reducing
external dependency risk; removed technical debt enabling faster
delivery; researched user needs and organized backlog flow.
Impact:Developed web & mobile ticketless parking
solution; reconstructed missing documentation; collaborated with
cross-continental stakeholders on roadmap; delivered core feature
set within very limited budget while maintaining usability.
Simple game promoting charitable contributions. Team: 3,
Waterfall
Impact:Consulted & mentored team on React Native and
store compliance; mitigated framework constraints to reach
acceptable performance; pushed React Native to its limits for game
interactions.
IoT and Android developer (R&D Specialist on Grant Project)
Wrocław University of Science and Technology |
-
Heat Detection in Cows
Project aimed at improving cow health and milk production by
gathering and analyzing data from cow collars. Team: 6 (incl. 4
lecturers)
Impact:Conducted hardware testing & Android
development for BLE livestock collars; deployed and programmed
devices; built auxiliary data-gathering software; mediated between
research requirements and hardware constraints; resolved
connectivity issues in metal barns; implemented algorithms and
produced comprehensive research documentation.
Tech stack:Android (Java), Bluetooth 4.2/5, R,
Python, C++, BLE scanning libraries, nRF51/52 dev kit, Redmine
Mobile developer (Android & iOS)
Human Device (Software house) |
-
Multi-domain mobile solutions
Delivered Android & iOS applications across logistics (fleet &
cargo), on-demand food delivery, renewable energy device
management, and offline retail inventory. Transitioned from
Android focus into full bi-platform ownership, including CI/CD
and mentoring.
Impact:Owned end-to-end mobile delivery
(architecture, features, releases); integrated peripherals
(barcode scanners, printers); maintained CI/CD; mentored and
onboarded developers; implemented accessibility improvements;
built custom ORM & caching layer for offline search & faster
iteration; coordinated cross-platform feature parity; delivered
renewable energy management suite; established reliable peripheral
& offline communication workflows.