Available

~/stembera $ whoami

Stanley J. Stembera

Fullstack Developer & SW Architect. Since 1999, I've been helping companies across the DACH region build web applications, CRM systems, and enterprise solutions. Frontend specialist with a strong backend.

$ get_in_touch GitHub LinkedIn GULP

27+

years of experience

30+

projects delivered

15+

enterprise clients

languages spoken

Services

Frontend Development

Modern SPAs with React, Angular, or Vue.js. Responsive design, mobile-first approach, UX/UI implementation, and Storybook component libraries.

Fullstack & Backend

Node.js, C#/.NET, Java. RESTful APIs, GraphQL, database design (SQL, MongoDB), and microservices architecture.

Architecture & Migration

Legacy system migration to modern stacks. Angular upgrade paths, JSP-to-SPA transformations, CI/CD pipelines, and DevOps (Docker, k8s, Azure/AWS).

Consulting & Tech Lead

Technical leadership, code reviews, team mentoring, architectural decisions. Agile/Scrum environments, NX monorepo setups.

Clients

Douglas GmbH Retail

European Space Agency (ESA) Aerospace

HSBC Finance

Nokia Siemens Networks Telecom

Apple Technology

BMW AG Automotive

Haufe-Lexware Software

Deutsche Bank Finance

Airbus Aerospace

Yettel Bulgaria Telecom

OSRAM GmbH Industry

Microsoft Software

Foxconn Manufacturing

Allianz Insurance

1&1 Internet AG Internet

DekaBank Finance

SinnerSchrader Agency

Deutsche Post Logistics

Industries

Banking & Finance Automotive Telecommunications Retail & E-commerce Manufacturing & IoT Aerospace & Space Software & IT

Tech Stack

Frontend — Core Focus

React Angular Vue.js TypeScript NextJS JavaScript / ES2016+ HTML5 CSS3 / SASS / LESS Tailwind CSS Storybook Flutter Electron React Native

Backend & Databases

Node.js C# / .NET Python / Django NestJS Java / J2EE PHP REST API GraphQL MongoDB PostgreSQL MSSQL MySQL

DevOps & Tooling

Docker Kubernetes Azure AWS NX Monorepo Git CI/CD JEST Cypress Selenium Webpack Vite Figma

// Languages

[CZ]

Czech

[DE]

German

[EN]

English

[IT]

Italian

Contact

Looking for a reliable developer for your next project? Let's talk — I'm happy to discuss how I can help. Available remote and on-site across the DACH region and Czech Republic.

✉

stan.stembera@gmail.com

◈

GULP

spezialisten/9c2208aa

🔗

linkedin.com/in/stanley-j-stembera

💻

GitHub

github.com/stanstembera

Karlstein am Main, Germany · Remote & on-site · DE, AT, CH, CZ