Senior Python Software Engineer (FTTH)

Rublon Services provides consulting, custom software development, and cloud services. Since 1993, we’ve helped market leaders unlock their potential by delivering digital innovation across the automotive, energy, and telecommunications sectors. Our teams advise clients on innovation and design, build, maintain, and support compliant enterprise software solutions.

We are looking for a long-term employee or contractor who will support ongoing development efforts in the following project:

Development of FTTH Applications

Our client, a leading European telecommunications company, is expanding its FTTH network and needs to strengthen its portfolio of GIS–based applications that support these initiatives.

How You’ll Work

• Location: 100% remote or office in Kraków or Zielona Góra, Poland

• Technology Stack: Python, Windows Batch, SQL, Oracle PL/SQL, PostgreSQL, QGIS, Conda, JFrog, GitLab

• Team size: 15 (Developers, Scrum Master, Product Owner, Architect)

• Self development: access to online training courses, sponsored certifications

• Benefits for employees: access to private medical care and MultiSport card

What You’ll Do

As a Senior Python Software Engineer on the Rublon Services team you will:

• Design, build, and evolve Python services and data-driven components that power FTTH planning and delivery applications

• Develop and maintain data pipelines and processing workflows, turning raw network and spatial data into reliable outputs

• Work with PostgreSQL to model, query, and migrate application data; write efficient SQL when needed

• Implement and maintain geospatial capabilities, including working with Shapefiles and geospatial libraries

• Integrate and operate GIS tooling and services (e.g., GeoServer) and collaborate with users of QGIS

• Improve system performance, scalability, reliability, and observability (logging, monitoring, metrics) across multiple services/components

• Contribute to DevOps and delivery activities, including GitLab CI and scripting (PowerShell / occasional Windows batch)

• Collaborate in a SAFe setup within a multi-team program, participating in refinement, planning, reviews, and cross-team technical alignment

• Build with security and privacy in mind, incorporating related requirements into day-to-day engineering work

• Maintain high engineering quality through code reviews, automated testing, and documentation (Jira/Confluence), using VS Code or PyCharm on dedicated Windows machines

Skills You Have

• 5+ years of professional software engineering experience, with strong depth in Python (we currently use Python 3.11) and ownership of production systems end-to-end

• Practical experience with PostgreSQL, including writing efficient SQL, understanding indexing/performance basics, and designing reliable schemas

• Hands-on use of SQLAlchemy and Alembic (or equivalent) for ORM-backed development and managing database migrations safely in production

• Proven ability to design and evolve service-oriented components: API design, integration patterns, backward compatibility, and operational considerations

• Strong engineering hygiene: automated testing strategy, code reviews, refactoring, debugging, and performance tuning

• Ability to drive technical decisions: break down ambiguous problems, propose solutions, and align stakeholders (engineers, architect, product)

• Comfortable operating in a regulated/security-conscious environment; you build with security and privacy as first-class requirements

• Experience working in Agile delivery (SAFe, ideally at scale) and collaborating across multiple teams using GitLab, Jira, Confluence, and Teams

• Comfortable working in a Windows Server/RDS development environment using VS Code and/or PyCharm

Nice To Haves

• Geospatial / GIS experience, especially: GeoPandas, GDAL, Shapefiles

• Experience designing or implementing data pipelines (e.g., Kedro or similar concepts: nodes, datasets, orchestration, reproducibility)

• Familiarity with GeoServer and serving/publishing spatial layers

• Basic proficiency with QGIS (using it for inspection/debugging); QGIS plugin development is a plus

• DevOps/automation exposure: GitLab CI, deployment support, and scripting with PowerShell (and occasional .bat)

• Working knowledge of Conda for reproducible environments and JFrog Artifactory (or similar) for dependency/package distribution

• Active use of GitHub Copilot (and comfort with AI-assisted development in a secure enterprise setup)

Why Apply

• Work on real-world FTTH network development at a leading European telecommunications company; software that directly supports large-scale infrastructure delivery

• Interesting geospatial and data engineering challenges: spatial datasets, Shapefiles, GIS tooling, and data pipelines at enterprise scale

• Complex system, clear ownership: you’ll contribute within a large program (multiple teams) while owning meaningful components and services

• Engineering quality matters: emphasis on reliability, observability, security, and privacy as part of the normal development lifecycle

• Modern development practices and tooling: GitLab + CI, Jira/Confluence, code reviews, automated testing, and strong collaboration routines

• A team setup designed to deliver: experienced peers, established ways of working (SAFe), and a structure that supports planning and execution

Steps After You Apply

1. You’ll be invited to an online meeting with our recruiter

2. Afterwards, we’ll ask you to do a small assignment, which will then be discussed with one of our technical leads

3. If everything goes well, we will make you an offer and invite you to a final interview