Senior Fullstack Platform Engineer — Build Dev Foundations

JTL-Software-GmbH; Germany (OH); On-site; USD 79,944 - 114,207; Full time

Job summary

JTL is building a Developer Platform within the AI & Cloud Platform department. We focus on frontend and backend standards, reusable templates, and scalable platform capabilities to support the company’s e-commerce software.

You will contribute across frontend (React, TypeScript, Storybook, TailwindCSS) and backend (.NET 8, C#), shaping our internal tooling and developer experience. This role offers opportunities to work across infrastructure and product teams.

Qualifications

• You have several years of professional experience in fullstack development.
• You are strong in one stack and solid in the other: React and TypeScript on the frontend, .NET 8 / C# on the backend.
• Frontend: component-based development and design systems (Storybook, TailwindCSS).

Responsibilities

• You work on platform topics that matter most right now, with focus shifting quarterly.
• You develop standards, guidelines, and best practices for frontend and backend at JTL.
• You create and maintain templates, boilerplates, and libraries to help other teams be productive.
• You support the bootstrapping of new projects so standards are applied from the start.
• You regularly evaluate new technologies and assess their value for our landscape.

Skills

Full-stack development

React

TypeScript

.NET 8 / C#

Storybook

TailwindCSS

Job description

JTL is building a Developer Platform within the AI & Cloud Platform department. We focus on frontend and backend standards, reusable templates, and scalable platform capabilities to support the company’s e-commerce software.

You will contribute across frontend (React, TypeScript, Storybook, TailwindCSS) and backend (.NET 8, C#), shaping our internal tooling and developer experience. This role offers opportunities to work across infrastructure and product teams.