Freelance Senior Back End Developer

innoscripta is a fast-growing technology consultancy and the #1 technical innovation consultancy for medium-sized companies in Germany.
We operate internationally with offices in Germany, Austria, Turkey, France, India, and the UK.

Our core products include a multi-module CRM system, a sales-focused SaaS platform, and several other data-driven products.

You can explore some of our platforms here:
https://clusterix.io
https://www.innoscripta.com/en


Key Responsibilites

-Design, develop, and maintain scalable backend services and APIs.

-Work with Python and JavaScript-based backends (Node.js), while remaining open to other languages and technologies.

-Design and implement RESTful APIs and integrate internal and external services.

-Contribute to system architecture, scalability, and performance improvements.

-Work with relational databases (e.g. PostgreSQL, MySQL) and optimize queries and data models.

-Ensure high code quality, security best practices, and maintainable systems.


Qualifications
-Strong backend engineering experience (minimum 5-6 years), independent of a specific language or framework.

-Proficiency in Python and/or JavaScript (Node.js).

-Solid understanding of backend fundamentals:

• API design

• Data modeling

• Authentication & authorization

• Performance and scalability

-Experience working with relational databases and complex business logic.

-Experience with microservice architectures.

-Experience with Golang.Exposure to AI-related systems, data pipelines, or AI-driven features.