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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal Python Engineer (Apache Ecosystem) - **Company:** Bairesdev S.A. - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Apache HTTP Server, Big Data, Distributed Systems, Python (Programming Language), Open Source Technology, Performance Tuning, Software Engineering, Data Processing, Apache Spark, Apache Kafka, Free and Open-Source Software, Service Stack - **Published:** August 7, 2026 - **Apply:** https://www.buscojobs.com.es/principal-python-engineer-apache-ecosystem-en-madrid-ID-366439826 ## About the Role 10+ years of experience in software development with strong Python expertise. Proven track record as a leading contributor to Apache open source projects, with recognized impact in the community. Exceptional expertise in open source development methodologies, governance, and community leadership. Extensive knowledge of distributed systems architecture, scalability, and advanced performance optimization. Demonstrated ability to set technical strategy, influence cross?team decisions, and deliver high?impact results. Experience mentoring and leading senior technical talent. Advanced level of English. How we make your work (and your life) easier ## Description Principal Python Engineer (Apache Ecosystem)We are seeking a Principal Python Engineer with deep expertise in Apache project contribution, data processing, automation, and big data ecosystem integration. The technology stack includes popular open source Apache projects with Python integration - Spark, Kafka, and related ecosystem tools. The role goes beyond development: the ideal candidate will set technical direction, drive architectural decisions, and represent BairesDev in the Apache community.At BairesDev®, we have been leading the way in technology projects for over 15 years, delivering cutting?edge solutions to giants like Google and the most innovative startups in Silicon Valley.What You'll Do:Drive technical vision and strategy for Python?based integration with Apache ecosystem projects (Spark, Kafka).Contribute actively as a core contributor to Apache open source projects with Python components.Define and oversee the design of highly scalable, resilient data processing systems built in Python.Establish best practices and performance standards for AI/ML and big data applications across teams.Mentor and empower Staff and Senior Engineers, fostering technical growth and knowledge sharing.Influence cross?functional engineering decisions, aligning technical initiatives with business objectives.Lead innovation initiatives and guide the evolution of open source frameworks within the Apache ecosystem.What we are looking for:10+ years of experience in software development with strong Python expertise.Proven track record as a leading contributor to Apache open source projects, with recognized impact in the community.Exceptional expertise in open source development methodologies, governance, and community leadership.Extensive knowledge of distributed systems architecture, scalability, and advanced performance optimization.Demonstrated ability to set technical strategy, influence cross?team decisions, and deliver high?impact results.Experience mentoring and leading senior technical talent.Advanced level of English.How we make your work (and your life) easier:Excellent compensation in USD or local currency if preferred.Paid parental leave, vacation, and national holidays.Innovative and multicultural work environment.Collaborate and learn from the global Top 1% of talent in each area.Supportive environment with mentorship, promotions, skill development, and diverse growth opportunities.Location: Madrid, Community of Madrid, SpainJoin a global team where your unique talents can truly thrive and make a significant impact!Apply now!#J-*****-Ljbffr ## Related Videos - [PySpark - Combining Machine Learning & Big Data](https://www.wearedevelopers.com/videos/44-pyspark-combining-machine-learning-big-data) - [Let's Get Started With Apache Kafka® for Python Developers](https://www.wearedevelopers.com/videos/565-let-s-get-started-with-apache-kafka-for-python-developers) - [Alibaba Big Data and Machine Learning Technology](https://www.wearedevelopers.com/videos/37-alibaba-big-data-and-machine-learning-technology) - [How to Benchmark Your Apache Kafka](https://www.wearedevelopers.com/videos/76-how-to-benchmark-your-apache-kafka) - [Why and when should we consider Stream Processing frameworks in our solutions](https://www.wearedevelopers.com/videos/1085-why-and-when-should-we-consider-stream-processing-frameworks-in-our-solutions) - [Python-Based Data Streaming Pipelines Within Minutes](https://www.wearedevelopers.com/videos/1233-python-based-data-streaming-pipelines-within-minutes) ## Related Articles - [The 13 Best Python Libraries for Developers in 2025](https://www.wearedevelopers.com/magazine/371-the-13-best-python-libraries-for-developers-in-2025) - [Coffee with Developers - Maria Apazoglou - Making AI understandable for all in production](https://www.wearedevelopers.com/magazine/475-coffee-with-developers-maria-apazoglou-making-ai-understandable-for-all-in-production) - [Spanish Business Culture and Etiquette](https://www.wearedevelopers.com/magazine/353-spanish-business-culture-and-etiquette) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [Dev Digest 137 - AI'm not sure about this](https://www.wearedevelopers.com/magazine/485-dev-digest-137-ai-m-not-sure-about-this) - [The Best X (Twitter) Accounts for Developers](https://www.wearedevelopers.com/magazine/294-the-best-x-twitter-accounts-for-developers)