Senior Full-Stack Product Engineer, Startup, SaaS

SOUS

Senior Full-Stack Product Engineer developing SaaS solutions for the independent F&B market. Collaborating with cross-functional teams to scale operations and innovate product engineering.

Posted 7/30/2026full-timeAmsterdam • 🇳🇱 NetherlandsSenior💰 €80,000 - €95,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in full-stack development with a focus on Python (Django) and JavaScript/TypeScript (React), alongside strong capabilities in API development, cloud hosting optimization, and SaaS architecture. Proven ability to mentor teams and uphold high standards in code quality and testing methodologies.

Highest-signal resume keywords

Full-Stack DevelopmentPython (Django)JavaScript/TypeScript (React)API DevelopmentSaaS Architecture

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Hard Skills

DjangoReactTypeScriptPostgreSQLRESTful APIsJWT AuthTDDBDDGit WorkflowsCI/CD

Soft Skills

MentoringCollaborationDecision-Making

Tools & Technologies

GCPAWSShopifyMendrixBitbucket PipelinesReact Testing LibraryMUI

Industry Keywords

SaaSMulti-Tenant SolutionsCloud HostingCode QualityEngineering Excellence

Tech Stack

Tools & technologies

AWSCloudDjangoGoogle Cloud PlatformJavaScriptPostgresPythonReactTypeScript

About the role

Key responsibilities & impact

Develop and refine our core backend (Django) and frontend (React + TypeScript).
Create and improve APIs for users, orders, shipping, and partner tools.
Build smart integrations with tools like Shopify and Mendrix.
Scale and optimize cloud hosting on GCP (and AWS in the future).
Ensure our stack is clean, scalable, and future-proof.
Architect and scale multi-tenant SaaS solutions for the next phase of SOUS.
Collaborate with product, design, and operations teams to align technical plans with business goals.
Set the bar for code quality, testing (TDD/BDD), and CI/CD workflows.
Mentor developers to help them grow while creating a culture of engineering excellence.
Identify opportunities to innovate and improve.

Requirements

What you’ll need

You’ve been in the trenches as a full-stack developer for 10+ years, and you’re fluent in Python (Django) and JavaScript/TypeScript (React).
You’ve built and scaled SaaS applications that are battle-tested in production.
Your database game is strong - PostgreSQL and ORMs are second nature to you.
You’ve led teams, balancing writing code with mentoring and decision-making.
You can architect systems that are both elegant and robust while keeping your hands dirty in the codebase.
Testing isn’t just a buzzword for you - it’s how you build (Pytest, React Testing Library).
You’re fluent in Git workflows and CI/CD tools (e.g., Bitbucket Pipelines).
Deep experience in building and integrating APIs—whether it’s RESTful APIs, JWT Auth, or third-party tools like Shopify and Mendrix.
Modern frameworks (React, MUI) are where you shine. You know how to make frontends fast, responsive, and delightful.

Benefits

Comp & perks

Competitive Salary + Equity: €95k + options—you’ll grow with us.
Shape the Future: Your contributions will define what SOUS becomes.
Flexibility: While we’re primarily on-site, we value flexibility when it makes sense.
Passion-Driven Team: Join a group of foodies and techies who love solving big problems.
High Impact: Be part of a mission that’s changing the way F&B creators succeed.