Senior Full-Stack Product Engineer — Lead SaaS & Scale Growth

SOUS; Amsterdam; On-site; Confidential; Full time

Benefits offered by this job

Equity

Competitive salary

On-site with flexible options

Job summary

SOUS in Amsterdam is seeking a Senior Full-Stack Product Engineer to lead a growing engineering team while shipping high‑impact features. You’ll own core backend in Django and frontend in React/TypeScript, architect multi‑tenant SaaS, and drive API design with Shopify/Mendrix integrations.

We value hands‑on leadership, strong testing culture (Pytest, React Testing Library), and a passion for scalable, robust code.

Qualifications

• 10+ years as a full-stack developer with SaaS experience.
• Proficient in Python (Django) and JavaScript/TypeScript (React).
• Strong PostgreSQL and ORM knowledge.
• Experience leading teams and balancing coding with mentorship.

Responsibilities

• Architect and scale multi-tenant SaaS backends and frontends.
• Define API design and integrate with Shopify, Mendrix.
• Lead code quality, testing (TDD/BDD), and CI/CD practices.
• Mentor developers and drive engineering excellence.

Skills

Leadership

Team mentorship

System architecture

Code quality

Tools

Django

React

PostgreSQL

Git / CI/CD (Bitbucket Pipelines)

Pytest

React Testing Library

JWT Auth

Shopify integration

Job description

SOUS in Amsterdam is seeking a Senior Full-Stack Product Engineer to lead a growing engineering team while shipping high‑impact features. You’ll own core backend in Django and frontend in React/TypeScript, architect multi‑tenant SaaS, and drive API design with Shopify/Mendrix integrations.

We value hands‑on leadership, strong testing culture (Pytest, React Testing Library), and a passion for scalable, robust code.