Learn, build and work with

Nik Sumeiko

Learn, build and work with

Nik Sumeiko

Hey, I am a software engineer, an expert in payment systems, and a family man.

I work on George, digital banking of Erste Group, and love teaching developers online.

A new sustainable learning format we will create together.

To raise the bar of professional React/Nextjs development.

A new sustainable learning format.

To raise the bar of React/Nextjs development.

Looking for React mentorship?

Here is what my training program includes:

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Learning Clean Architecture in React

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Mastering testing React/Nextjs apps

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Making TDD your development tool

Start here

Let's check if you're qualify to become my mentee

What students are saying about my mentoring program

I worked with many wonderful companies all around the world

Projects

Software

10 million customers

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We ship 2 enterprise-grade React apps

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300+ features crafted using 2m+ LOCs

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Software I ship handles ยฑ330,548 payments every day

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It's 4.6 payments per second

(

0

since you entered the page)

Trainings

Developers community, mentoring program, workshops, bite-size lessons

32,000+ students (software engineers)

Subjects we master together:

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Clean Architecture in React

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Building React/Nextjs apps using TDD

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The Pyramid testing strategy

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Zero bugs policy for React apps

Personal life

I'm married to Janita. Together we have 2 kids.

Logo

Janita Sumeiko ยท Photo by Sonya Khegay, 2018

Need help? Send me an email to โ€ฆ.

Copyright ยฉ 2012 - 2025

Vienna, Austria.

All rights reserved.