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michał
tajchert

Chief Technology Officer 最高技術責任者
@Tajchert  ·  WARSAW, PL
MOBILE PLATFORM eCOMMERCE ANDROID
mtajchert — zsh — 96×24
mtajchert@nothing:~$ whoami
> michał tajchert
> cto · mobile · full-stack
mtajchert@nothing:~$ uptime
> 13+ years shipping mobile & platform
mtajchert@nothing:~$ cat now.txt
> leading eng at Lite e-Commerce
mtajchert@nothing:~$
DEPENDING ON THE DAY · 肩書き
hands on keys · shipping teams · growing people

01 / ABOUT

概要

CTO in q-commerce and eCommerce, leading software, design, and data at Lite e-Commerce. Ex-mobile lead in fashion commerce and banking; Android engineer since the early commercial Android years.

I work close to product, architecture, and team design: enough strategy to keep direction clear, enough hands-on engineering to keep decisions grounded.

Outside the day job I keep building: Android libraries, small product experiments, full-stack tools, and Kanarek.app. Below: selected projects, roles, activity, and community work.

02 / PROJECTS

制作物
Open-source Android projects and product experiments. = highlighted.
★ HIGHLIGHT

WaitingDots

Android loading animation library built around bouncing dots, shipped as a small reusable UI component.

KOTLINANDROIDOSS
700+MIT license
★ HIGHLIGHT

Nammu

Android runtime-permission helper for cleaner permission checks, callbacks, monitoring, and Android M-era app flows.

KOTLINANDROIDPERMISSIONS
700+MIT license

BusWear

EventBus support for Android Wear and mobile apps with synchronized event buses.

JAVA · ANDROID WEAR · OSS

ExceptionWear

Android Wear exception-handling library for making wearable app failures easier to manage.

JAVA · ANDROID WEAR · OSS

RuntimePermissionWorkshop

Workshop material for teaching Android runtime permissions through practical examples.

JAVA · WORKSHOP · ANDROID

03 / EXPERIENCE

経歴

Chief Technology Officer

NOW
Lite e-Commerce · Feb 2025 — present · Warsaw

Leading software, design, and data for Żabka Jush and Delio: engineering direction, product delivery, and team health.

Engineering Manager

ECOM
MODIVO SA · May 2022 — Dec 2024

Managed mobile teams for MODIVO and eObuwie apps across 19 markets, plus the Backend-For-Frontend layer and cross-department delivery.

Mobile Technology Leader

MODIVO SA · Nov 2021 — May 2022

Set mobile engineering direction during a fast-growth phase: architecture, team practices, and delivery standards.

Mobile Technology Leader

BANKING
BlueSoft · Oct 2020 — Oct 2021 · Warsaw

Led mobile technology and the Android team for Raiffeisen Ukraine while supporting wider mobile initiatives inside BlueSoft.

Technology Business Development Manager

FINTECH
DXC Technology · Feb 2019 — Sep 2020 · Warsaw

Owned technology, delivery, and client-facing work for BLIK in the UAE and IKO at PKO BP, bridging architecture, senior teams, and business needs.

Android Team Lead @ Raiffeisen

BANKING
BlueSoft · Jul 2017 — Jan 2019 · Warsaw

Led a six-person Android team building a new banking app while maintaining Mobilny Portfel and coordinating the BNP mobile merge.

Startups - Brand24, Yawn, Icelytics, 12Hours

2015 — 2017 · Warsaw / Toronto

Built and led early product teams across analytics, mobile apps, and consumer products; mixed Android delivery with founder-level ownership.

Software Engineer

Polidea · Jul 2014 — Apr 2015 · Warsaw

Professional software engineering in a mobile-focused software house, building Android products for clients.

Android Developer

BrandCare · Jul 2013 — Oct 2013 · Warsaw

Early commercial Android work, including Banamo, a privacy-focused safer community app.

04 / ACTIVITY

活動
Contribution density, last 12 months · GitHub + GitLab.

05 / COMMUNITY

コミュニティ
Events, workshops, mentoring, and open-source education.
13–19

GDG Warszawa

team member · technical content, speakers, and events
~100

Meetups, workshops, hackathons

from small Android sessions to nationwide conferences
OSS

Android open-source teaching material

RuntimePermissionWorkshop · Nammu · Android runtime permissions
MENTOR

Mobile product and engineering mentoring

architecture, quality, and product direction for early teams

06 / CONNECT

連絡
BLOG
mtajchert.hashnode.dev
LINKEDIN
/in/michał-tajchert
X
@Tajchert
GITHUB
@tajchert
GITLAB
@mtajchert