Senior/Principal Python Developer

Xebia sp. z o.o.; Wrocław; Remote; PLN 120,000 - 180,000; Full time

Job summary

A leading tech company in CEE is seeking a Technical Lead to oversee UCX migration workflows and platform architecture. The ideal candidate should have expert-level knowledge of Python and Databricks, experience in technical leadership, and strong communication skills. You will drive architectural decisions, mentor engineers, and ensure optimal performance of data workflows. This role requires availability to work with US East Coast time zone from Poland.

Qualifications

• 2+ years of production PySpark experience required.
• 1+ years of hands-on architecture experience on Databricks.
• 3+ years of technical leadership experience.

Responsibilities

• Define and evolve the technical roadmap for UCX migration.
• Drive key architectural decisions across storage and compute.
• Optimize Spark workloads for performance and reliability.

Skills

Python

Databricks

Technical leadership

Data governance

API design

Communication skills

Problem-solving

English (min. B2)

Education

Degree in Computer Science, Engineering, or related field

Job description

While Xebia is a global tech company, our journey in CEE started with two Polish companies – PGS Software, known for world‑class cloud and software solutions, and GetInData, a pioneer in Big Data. Today, we’re a team of 1,000+ experts delivering top‑notch work across cloud, data, and software. And we’re just getting started.

What We Do

We work on projects that matter – and that make a difference. From fintech and e‑commerce to aviation, logistics, media, and fashion, we help our clients build scalable platforms, data and AI solutions, and cutting‑edge applications to shape the future of tech. Our clients include McLaren, Aviva, Deloitte, Spotify, Disney, ING, UPS, Tesco, Truecaller, AllSaints, Volotea, Schmitz Cargobull, Allegro, InPost, and many, many more.

We value smart tech, real ownership, and continuous growth. We use modern, open‑source stacks, and we’re proud to be trusted partners of Databricks, dbt, Snowflake, Azure, GCP, and AWS. Fun fact: we were the first AWS Premier Partner in Poland!

Beyond Projects

What makes Xebia special? Our community. We support tech communities, organize meetups (Software Talks, Data Tech Talks), and have a culture that actively supports your growth via Guilds, Labs, and personal development budgets — for both tech and soft skills. It’s not just a job. It’s a place to grow.

What sets us apart?

Our mindset. Our vibe. Our people. And while that’s hard to capture in text – come visit us and see for yourself.

You will be:

• Defining and evolving the technical roadmap for UCX migration workflows and platform architecture.
• Driving key architectural decisions and ensuring consistency across storage, compute, and governance layers.
• Leading the design and implementation of complex migration features and data workflows.
• Optimizing Spark workloads and ensuring performance, reliability, and scalability of the platform.
• Mentoring engineers, setting coding standards, and promoting best engineering practices.
• Researching and prototyping new migration capabilities and Unity Catalog integrations.

Job requirements

Your profile:

• Expert‑level knowledge of Python, with 2+ years of production PySpark experience.
• 1+ years of hands‑on architecture experience on Databricks, with deep understanding of Unity Catalog and Hive metastore.
• 3+ years of technical leadership experience, driving engineering strategy and team delivery.
• Solid understanding of data governance, compliance, and audit requirements.
• Experience designing robust APIs and integration patterns for enterprise environments.
• Passion for defensive programming and building scalable, reliable software.
• Excellent written and verbal communication skills, able to lead cross‑functional collaboration.
• Strong problem‑solving skills, strategic thinking, and decision‑making under ambiguity.
• Good verbal and written communication skills in English (min. B2).
• Availability to work with US East Coast time zone.
• Work from EU and a work permit to work from EU are required.

Nice to have:

• Experience as a Staff or Principal Engineer at a major technology company.
• Contributions to open‑source data platforms.
• Experience working directly with large enterprise customers in a sales engineering context.
• Degree in Computer Science, Engineering, or a related technical field (or equivalent practical experience).

Recruitment Process

• CV review – HR call – Technical Interview – Client Interview – Decision