Senior Full-Stack Engineer (TypeScript) (m/f/d)

casavi

10d•Hybrid

About The Position

As part of a cross-functional product team, you will help build the AI-based part of casavi’s platform, including agentic solutions that improve customers’ productivity and take over complete tasks. You will plan, architect, and develop applications using the team’s technology stack: TypeScript, Node.js, Mastra AI, React, MySQL, Kubernetes, Docker, Git/GitLab, and AWS. You will work closely with Product Managers and Designers to create high-quality customer-facing features and collaborate with developers to deliver scalable, highly available, reliable technical solutions. You will also contribute ideas to improve the product and developer experience. The role is backend-focused while requiring capability across both backend and frontend development, from complex architectures to single-page applications. You will use AI tools productively, safely, and responsibly, and apply LLMs as software architecture components that deliver customer value. The position offers flexible, hybrid working and is part of an international, agile environment.

Requirements

Strong knowledge of TypeScript.
Experience working across backend and frontend development, with backend as the main strength.
Experience with complex architectures and single-page applications.
Experience building cloud applications on AWS.
Ability to write well-structured, efficient, and maintainable code and actively maintain code quality.
Excellent analytical and problem-solving skills.
Solution-oriented and KPI-driven working style.
Strong communication skills.
Very good English proficiency, above C1.
Ability to use AI-based tools productively, safely, and responsibly.
Knowledge of using LLMs as components of software architecture and to deliver customer value.

Nice To Haves

Deep experience with Claude Code.

Responsibilities

Plan, architect, and develop applications within the product team’s technology stack.
Build AI-based and agentic platform solutions that improve customer productivity and take over tasks.
Work with Product Managers and Designers to create high-quality features for customers.
Collaborate with developers to build scalable, highly available, and reliable technical solutions.
Maintain the quality of the code base by writing well-structured, efficient, and maintainable code.
Bring ideas forward to improve the product and developer experience.
Use AI-based tools safely and responsibly and incorporate LLMs into software architecture to deliver customer value.