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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:~$ cat ~/.philosophy
> the best way to understand it is to build it.
mtajchert@nothing:~$ ls ~/building
> kanarek.app  open-source/  data-viz/  experiments/
mtajchert@nothing:~$ history | grep -c commit
> 15+ years of shipping
mtajchert@nothing:~$
DEPENDING ON THE DAY · 肩書き
hands on keys · shipping teams · chasing ambition

01 / ABOUT

概要

I'm the person who looks at your microwave and wonders if it can run Doom.
Most often, it can.

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 — projects big and small, like Kanarek.app. If I need something, I build it: full-stack tools, data-viz experiments, and things with real design care. And I love giving back, whether through open source or the wider community.

02 / PROJECTS

制作物
★ 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

Leading software, design, and data for Żabka Jush and Delio.

MODIVO SA

ECOM
Full-time  ·  Nov 2021 — Dec 2024 · 3 yrs 2 mos

Mobile apps and Backend-For-Frontend work for a fast-growing fashion eCommerce group operating across 19 markets.

Engineering Manager
May 2022 — Dec 2024
Mobile Technology Leader
Nov 2021 — May 2022

Mobile Technology Leader

BANKING
BlueSoft  ·  Oct 2020 — Oct 2021

Led mobile technology and the Android team for Raiffeisen Ukraine.

Technology Business Development Manager

FINTECH
DXC Technology  ·  Feb 2019 — Sep 2020

Worked across technology ownership, software management, architecture, and client-facing business development.

BLIK in the United Arab Emirates.

IKO at PKO BP.

Client discovery.

Android Team Lead @ Raiffeisen

BANKING
BlueSoft  ·  Jul 2017 — Jan 2019

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

Startups

Warsaw & Toronto  ·  Jun 2015 — Jun 2017

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

Brand24 — Team lead, new Android app from scratch.

Yawn — CEO — team, delivery, and product.

Icelytics — CEO — mobile network-analytics product.

12Hours.io — Early product and technical direction.

Software Engineer

Polidea  ·  Jul 2014 — Apr 2015

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

Android Developer

BrandCare  ·  Jul 2013 — Oct 2013

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

04 / EDUCATION

学歴

SGH Warsaw School of Economics

Master's degree, E-Business  ·  2015 — 2019
Toronto Metropolitan University, Canada
Feb 2017 — Jul 2017

Polish-Japanese Academy of Information Technology

Bachelor of Engineering, Computer Science · Mobile Devices  ·  2011 — 2015

05 / ACTIVITY

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

06 / 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

07 / CONNECT

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