Senior Frontend Engineer – Greenfield Product (Angular)

Senior Frontend Engineer (Angular) – Greenfield Product

Castle Tech GmbH – Berlin or Munich (Hybrid)

We are building a new standalone product from the ground up and are looking for a Senior Frontend Engineer to help shape it.

This is a high-impact role where you will influence system design, architecture, and product direction from day one. You will work closely with product and engineering to turn ideas into production-ready software while setting the foundation for how the system evolves.

If you enjoy building products from scratch, designing clean architectures, and taking ownership of meaningful projects , this role will allow you to make a real impact.

What You’ll Work On

• Build a new production-grade product from the ground up

• Design and implement a scalable frontend architecture using Angular and TypeScript

• Take ownership of features from concept to deployment

• Collaborate closely with product managers, designers, and backend engineers

• Contribute to technical architecture and system design decisions

• Help establish development standards, CI/CD pipelines, and engineering best practices

• Mentor other engineers through code reviews and technical feedback

• Continuously improve development workflows using modern tools and AI-assisted engineering

AI-Augmented Engineering

AI is part of how we work. We expect engineers to actively use modern AI tooling to improve productivity and quality .

You should be comfortable:

• Using AI-assisted development tools in your daily workflow

• Writing effective prompts and evaluating AI-generated output critically

• Identifying AI limitations and failure modes

• Exploring modern AI workflows and tools

This is not about blindly accepting AI suggestions — it’s about using AI thoughtfully to work smarter and build better systems .

Your Skills Must Have

• 5+ years of experience as a frontend engineer

• Strong expertise with Angular (v11+) and TypeScript

• Experience designing scalable frontend architectures

• Strong understanding of software design principles and maintainable systems

• Experience with modern frontend tooling (NPM, Webpack or esbuild)

• Experience working with Git, CI/CD pipelines, and Docker

• Experience working in agile teams (Scrum or Kanban)

• Strong communication skills in English

Nice to Have

• Experience with frontend testing frameworks (Jest, Cypress, Playwright)

• Experience building greenfield products or new platforms

• Familiarity with AI-related components such as RAG or vector databases

• Experience with Material Design or product-oriented UI development

• Conversational German

What You’ll Own

As a Senior Engineer , you will play an important role in shaping both the technology and the team .

You will:

• Design systems with clear component boundaries and scalability in mind

• Identify technical risks and propose practical solutions

• Help improve the team’s engineering standards and productivity

• Mentor other engineers and contribute to technical decision-making

• Deliver high-impact features that support business and product goals

Why Join Castle Tech?

• Build something new – work on a greenfield product from the start

• Real technical ownership – influence architecture and system design

• Modern engineering environment – use the latest tools and workflows

• Flexible hybrid work – office and remote options in Berlin or Munich

• Your gear, your choice – MacBook or Windows setup with the tools you need

• Growth and development – structured onboarding, feedback cycles, and coaching

• Collaborative team – ambitious engineers who enjoy building great products

If you're excited about building a new product, shaping architecture, and working with a modern engineering team , we’d love to hear from you.