Senior Full-Stack Engineer - Python/React | AI SaaS Innovator

Mobilunity; Antwerpen; Hybrid; EUR 85,000 - 120,000; Full time

Job summary

Mobilunity in Belgium is seeking a Senior Full-stack Software Engineer to join a small, technically focused team building an AI-powered SaaS platform. You will own end-to-end features and contribute to architecture decisions in a fast-moving startup environment.

This hybrid Antwerp-based role combines 4 days onsite and 1 day remote. You will develop Python backends and React/TypeScript frontends, integrate AI capabilities, and collaborate with product stakeholders to deliver scalable,

Qualifications

• Strong commercial Python backend development experience.
• Solid hands-on React and TypeScript experience.
• Experience with PostgreSQL and relational DB design.
• Experience designing, developing and integrating REST APIs.
• Ability to independently develop and deliver end-to-end full-stack features.
• Good understanding of software architecture, scalability, and maintainable code.
• Experience with modern development workflows, including Git and CI/CD practices.
• Strong English proficiency and product-oriented mindset.
• Autonomous work style in a fast-moving startup environment.

Responsibilities

• Design, develop, and maintain full-stack features using Python, React, and TypeScript.
• Build and optimize backend services, REST APIs, and DB integrations.
• Develop responsive, scalable frontend components.
• Integrate AI-powered functionality into the platform.
• Participate in architectural discussions and technical decision-making.
• Take ownership of features throughout the entire development lifecycle, from requirements to production.
• Collaborate closely with product stakeholders to translate business needs into technical solutions.
• Maintain high standards of code quality, performance, scalability, and reliability.

Skills

Python backend

React

TypeScript

PostgreSQL

REST APIs

Git

CI/CD

AI integration

Software architecture

Tools

Git

CI/CD tooling

Job description

Mobilunity in Belgium is seeking a Senior Full-stack Software Engineer to join a small, technically focused team building an AI-powered SaaS platform. You will own end-to-end features and contribute to architecture decisions in a fast-moving startup environment.

This hybrid Antwerp-based role combines 4 days onsite and 1 day remote. You will develop Python backends and React/TypeScript frontends, integrate AI capabilities, and collaborate with product stakeholders to deliver scalable,