Senior Python Software Engineer - FTTH Applications

About the Role

We are seeking a Senior Python Software Engineer to join our team at Rublon Services. This is a remote position where you will play a critical role in the development of FTTH applications for a leading European telecommunications company. You will work with a talented team of 15 professionals, including developers, a Scrum Master, a Product Owner, and an Architect, to deliver innovative solutions that support the expansion of FTTH networks.

What You'll Do

• 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.

Requirements

• 5+ years of professional software engineering experience, with strong depth in Python (currently using 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 Have

• 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).

What We Offer

• 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

You’ll be invited to an online meeting with our recruiter. Afterwards, we’ll ask you to do a small assignment, which will then be discussed with one of our technical leads. If everything goes well, we will make you an offer and invite you to a final interview.