Back End Developer (Python)

Musimap; A distancia; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A leading music technology company in Madrid seeks a backend engineer to design and maintain services across their platform. The role involves contributing to micro-services, public APIs, and data pipelines. Ideal candidates will have strong Python skills, experience designing scalable APIs, and a passion for music technology. The position is remote-first, offering a competitive package based on seniority and the opportunity to tackle complex technical challenges.

Servicios

Small team with high ownership

Immediate impact on projects

Flexible work environment

Formación

• Strong Python backend experience required.
• Experience designing scalable APIs and data models.
• Solid understanding of distributed systems and cloud infrastructure.

Responsabilidades

• Design, build, and maintain backend services across the platform.
• Work directly with the CTO on architectural decisions.
• Contribute to a high-quality Python ecosystem.

Conocimientos

Python backend experience

Designing scalable APIs

Distributed systems understanding

Cloud Infrastructure knowledge

Communication skills

Clean code mindset

Audio, ML & DL interest

Kubernetes knowledge

Herramientas

Django

AWS

Docker

PostgreSQL

Descripción del empleo

Company Description

Musi Map builds deep-learning technology for the music industry : large-scale audio analysis, automated tagging, music discovery and user profiling. We process millions of tracks, combining machine-learning, audio signal processing, and musicology to understand music at scale.

We are a small, focused and highly technical team, building a modern micro-service architecture (Python, Django, Fast API, AWS EKS, DRF, Tensor Flow, Postgre SQL, Click House,...) and delivering analytics and APIs to B2 B platforms in the music space.

If you love music, large-scale systems and well-structured backend engineering, you'll feel at home.

Role Description

You will design, build and maintain backend services used across Musimap's platform, including internal micro-services, public APIs and data pipelines.

You'll work directly with the CTO (who also codes every day), participate in architectural decisions, and help shape a high-quality Python ecosystem. This is not just \"ticket execution\": we're looking for someone who enjoys architecture, clarity, automation, and long-term thinking.

Qualifications

• Design and implement Python micro-services (Django, DRF, Fast API)


• Build scalable APIs used by internal and external platforms


• Define and structure data models based on the right database engine


• Contribute to a high-quality module architecture shared across services


• Integrate with AWS (S3, EKS, IAM, RDS, SQS...)


• Review PRs, enforce patterns and reusable code, maintain quality


• Participate in architectural discussions and technical planning


• Work on performance, scalability, and robustness

Tech Stack

• Python, Django REST Framework, Fast API, py Test


• Postgre SQL, Click House, Redis, Elastic Search, Mongo DB


• AWS (EKS, IAM roles, S3, SQS, SNS, Cloud Front, Code Artifact,...)


• Docker, Terraform / Terragrunt, Github actions, Flux CD,...


• Tensor Flow, Essentia, FFMpeg (nice, but optional)

What we're looking for

• Strong Python backend experience


• Experience designing scalable APIs and data models


• Solid understanding of distributed systems and Cloud Infrastructure


• Strong communication skills and autonomy


• A \"clean code\" mindset (structure, reusability, long-term thinking)


• Audio, ML & DL, signal processing and music tech interest (nice-to-have)


• Kubernetes / Git Ops knowledge (nice-to-have)

Why Musi Map

• Small team, zero politics, high ownership


• Complex technical challenges in the Music Industry


• Immediate impact: what you build goes live quickly

Remote-first, async, flexible

Practical

Remote (Europe time zones only)

Full-Time Employment (through Native Teams, depending on your country)

Competitive package based on seniority

Please, no recruitment outreach / no agency sales messages