Full Stack Developer - B2B SaaS (m/f/d)

toern; Hamburg; Hybrid; EUR 50.000 - 70.000; Vollzeit

Zusammenfassung

A data-driven tech company in Hamburg is seeking a Full Stack Developer to build and enhance the features of their B2B SaaS solution. The ideal candidate has at least 2 years of software development experience, is proficient in Node.js and React, and is eager to work collaboratively with the founding team. This role offers ownership from day one, flexible work arrangements, and opportunities for professional growth.

Leistungen

Ownership from day 1

Flat-hierarchy team

Flexible work setup

Fast professional development

Qualifikationen

• 2+ years of experience in software development with web-based solutions.
• Comfortable working with Node.js and React.
• Experience with AWS or similar cloud platforms is important.

Aufgaben

• Build new features in frontend and backend.
• Collaborate closely with the team on product architecture.
• Identify bugs and provide sustainable solutions.

Kenntnisse

Software development

Node.js

React

Relational databases

Cloud infrastructure management

Communicative teamwork

Ausbildung

Degree in Computer Science or equivalent

Tools

AWS

Postgres

Jobbeschreibung

Our Mission

Rethinking returns – shifting them from a cost factor to a strategic lever for customer satisfaction, efficiency, and sustainability.

toern is a data-driven B2B SaaS solution for e-commerce, automating returns and exchange processes while enabling data-backed decisions through AI-powered analytics.

Tasks

• Full Stack Development: You’ll build new features in both the frontend (React) and backend (Node.js/AWS) – from idea to rollout.


• Close Collaboration: Work directly with the founder and dev team, actively shaping architecture, product, and internal processes.


• System Ownership: You identify bugs, track down root causes, and fix them properly – no quick fixes, but sustainable solutions.


• Cloud Infrastructure: Together with the founder, you’ll manage our AWS-based infrastructure (Lambda, Step Functions, RDS).


• Hands-on & Versatile: You’ll jump in wherever needed – whether it’s onboarding new customers, performance tuning, or feature development.

Requirements

• Degree in Computer Science or equivalent qualification.


• 2+ years of experience in software development and building/operating web-based software solutions.


• Comfortable with Node.js, React, relational databases, and distributed systems (AWS or similar).


• You want to build, not just maintain – you love creating from scratch and taking ownership.


• You work independently, think ahead, and actively look for pragmatic solutions – even when requirements are unclear or evolving.


• Strong communicator and team player – unafraid to speak up and take responsibility.


• Nice to have: Experience in e-commerce, B2B SaaS, returns/logistics, Postgres, or dynamic infra setups.

Benefits

• Ownership from Day 1: Work directly with the founding team and take real responsibility.


• A team of equals: Motivated, flat-hierarchy team that doesn’t just talk about better return processes – we build them.


• Tangible impact: Your work will directly shape the growth and evolution of toern.


• Steep learning curve: Expect fast professional and personal development.


• Flexible work setup: Co-working space in Hamburg + remote option + flexible hours.

Want to help us scale toern?

Just send us your application – a CV or solid LinkedIn profile is enough to start.

Diversity Matters

We’re committed to equal opportunity and diversity – regardless of gender, background, religion, sexual orientation, disability, age, or identity. People from all backgrounds are warmly encouraged to apply.