Senior Full-Stack Product Engineer, Startup, SaaS

Jobtailor

Amsterdam

On-site

EUR 120,000 - 180,000

Full time

14 days+

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Job summary

Jobtailor in Amsterdam seeks a veteran full-stack engineer to own and evolve our core backend in Django and frontend in React/TypeScript. You'll design scalable APIs for users, orders, shipping, and partner tools while driving system-wide improvements.

You will mentor engineers, promote TDD/BDD and CI/CD, and help shape multi-tenant SaaS architecture on GCP and AWS. If you are passionate about building battle-tested SaaS with robust data models, join us in delivering delightful experiences for

Qualifications

10+ years as a full-stack developer
Fluent in Python (Django) and JavaScript/TypeScript (React)
Experience building SaaS in production
Strong PostgreSQL and ORM skills

Responsibilities

Develop and refine backend (Django) and frontend (React + TypeScript)
Create and improve APIs for users, orders, shipping, and partner tools
Build integrations with Shopify and Mendrix
Scale cloud hosting on GCP (AWS in future)
Ensure scalable, future-proof stack
Architect multi-tenant SaaS solutions
Collaborate with product, design, and operations teams to align technical plans with business goals
Set high standards for code quality, testing, and CI/CD
Mentor developers and foster engineering excellence
Identify opportunities to innovate and improve

Skills

Django

React

TypeScript

PostgreSQL

RESTful APIs

JWT Auth

TDD

BDD

Git Workflows

CI/CD

API integration

Mentoring

Team leadership

Tools

GCP

AWS

Shopify

Mendrix

Bitbucket Pipelines

React Testing Library

MUI

Job description

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

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.

Core Competencies

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.

Hard Skills