Full Stack Engineer

nowon AG; A distancia; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A stealth-mode startup is seeking a Full Stack Engineer in Spain to build and scale user-facing products. The role involves backend services with Python and frontend development with React, contributing to systems used by artists and event organizers. Candidates should have experience in scalable systems and a passion for music. Join a flexible, growth-oriented team and help shape the future of live event organization with AI technologies. Competitive salary and stock options are offered.

Servicios

Impact on core architecture

Fully remote work

Growth opportunities

Competitive salary plus equity

High-trust culture

Formación

• Experience with scalable backend and frontend systems.
• Proficient in REST/WebSockets and database management.
• Knowledge of modern frontend technologies.

Responsabilidades

• Build and scale backend services using Python.
• Develop modern frontend components with React.
• Integrate third-party APIs into internal systems.

Conocimientos

Python

React

TypeScript

PostgreSQL

Redis

JavaScript

HTML/CSS

Herramientas

AWS

Docker

Kubernetes

Terraform

Celery

Kafka

Descripción del empleo

We’re nowon AG , an early-stage Swiss startup in stealth mode, backed by Innosuisse and leading music-industry investors. Our mission is to reimagine how live events are organized and reported, ensuring copyright compliance and transparency through our in house AI-powered music recognition and B2B products. We’re a small but strong interdisciplinary team of live music professionals, product owners, music AI researchers, and engineers, working fully remote across Europe. Together we combine deep R&D with real-world product expertise, building systems that will be used directly by artists, festivals and other key music industry stakeholders. If you’re excited to help shape this future, we’d love to build alongside you.

Who you are

We’re building fast, and we’re looking for a Full Stack Engineer based in Spain who’s excited to move between backend and frontend, shipping user-facing products while scaling reliable systems. The systems you build won’t just live in code; they’ll be used by artists, event organizers, and music industry stakeholders to streamline live performance reporting and unlock new possibilities in the music ecosystem.

Tasks

Your responsibilities

• Build and scale backend services with Python (FastAPI).
• Design and manage data models, migrations, and storage (PostgreSQL, Redis).
• Implement and maintain distributed background jobs.
• Develop modern frontend components with React / TypeScript.
• Own features end-to-end : design, development, deployment, and maintenance.
• Integrate third-party APIs into internal systems.
• Contribute directly to product and culture in a flat, agile team.

Requirements

• Have real-world experience shipping scalable backend and frontend systems.
• Are comfortable across the Python backend stack : REST / WebSockets, DB design, management, migrations (PostgreSQL, Redis, ORMs), distributed jobs.
• Write modern frontend : React (or similar), HTML / CSS, TypeScript / JavaScript.
• Are passionate about writing clean and pragmatic code.
• Think in product outcomes, not just tickets—love fast feedback loops.
• Work autonomously, communicate crisply, and raise the bar for the team.
• Are based in Spain.

Bonus points

• Familiarity with distributed task processing systems (eg : Celery, Kafka, AWS SQS, RabbitMQ, etc.).
• Cloud Infra and DevOps : AWS, Docker, Kubernetes, Terraform, GitHub Actions etc.
• Track record of shipping user-facing products.
• Passion for live music, whether as a musician, DJ, engineer, or through hands-on experience with concerts, festivals, or the live entertainment industry.
• Interest in music, audio processing and AI systems.

Note

We don’t expect you to tick every single box. If you’re excited about our mission and bring most of the skills or the drive to grow into them quickly, we’d still love to hear from you.

Benefits

• Impact : join early and shape core architecture, product, and culture.
• Flexibility : fully remote in Spain.
• Growth : clear path to senior / lead roles as we scale.
• Comp & equity : competitive salary + stock options.
• Culture : deep-tech, builder-mindset, high trust, low ego.

If building at the intersection of AI × music excites you, we’d love to talk.