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# Senior Backend Developer - Permanent - Barcelona

- **Company:** papernest
- **Location:** Barcelona, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Code Review, Django Web Framework, Python (Programming Language), Systems Integration, Web Platforms, Backend, Git, Integration Tests, Non-relational Database, Data Management, Web Technologies, Docker
- **Published:** August 12, 2026
- **Apply:** https://eu.experteer.com/career/view-jobs/senior-backend-developer-permanent-barcelona-barcelona-cataluna-spanien-58916301

## About the Role

from * Participate in code reviews and process improvements * Support deployment frequency and reduce lead time for changes * Mentor junior developers and share knowledge across teams Tasks * 5+ years of backend development experience in Python * Strong command of Python and Django * Experience with relational and/or non-relational databases and Django ORM * Good knowledge of Docker and Git * Knowledge of web technologies * Passion for new technologies and initiative * Rigour and autonomy * Interest in user experience as a product aspect * Willingness to work with teams in France, Spain, and Poland * Proficient English (written and spoken) Key requirements * remote work (2 days per week) * health insurance through Alan or Sanitas * meal partnerships and perks * training and career development * career growth opportunities * World-class international environment

## Description

Experteer Overview As a Senior backend developer at papernest, you will own the technical direction of the B2B web platform used by agencies and their clients. You will collaborate with cross-functional teams across Europe to shape scalable backend solutions and improve deployment speed and reliability. You'll tackle billing automation, data management, and system integrations, delivering high-quality features from development to production. This role offers meaningful impact in a fast-growing, international environment with mentoring responsibilities. Pay / Benefits * Own the product from a technical perspective and drive architecture decisions * Collaborate with developers, product, QA, and teams across Europe * Challenge requirements and anticipate technical challenges * Propose and implement technical solutions to improve architecture * Lead roadmap planning and ensure delivery * Develop features with unit and integration tests * Ensure features work from integration to production * Participate in code reviews and process improvements * Support deployment frequency and reduce lead time for changes * Mentor junior developers and share knowledge across teams Tasks * 5+ years of backend development experience in Python * Strong command of Python and Django * Experience with relational and/or non-relational databases and Django ORM * Good knowledge of Docker and Git * Knowledge of web technologies * Passion for new technologies and initiative * Rigour and autonomy * Interest in user experience as a product aspect * Willingness to work with teams in France, Spain, and Poland * Proficient English (written and spoken) Key requirements * remote work (2 days per week) * health insurance through Alan or Sanitas * meal partnerships and perks * training and career development * career growth opportunities * World-class international environment


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