Job Title

Senior Python Developer

Job Description

The Role

We’re looking for a fully remote (EU only) senior Python Developer to build a modular, extensible Python library that automates common data transformation tasks and streamlines data preparation workflows, to reduce the time and effort data scientists spend on preprocessing activities for AI/ML applications within the Earth Observation space.

You’ll work on high-performance scientific software and complex data processing systems used to transform large scale satellite and meteorological datasets into high quality outputs which can be used is inputs for AI/ML models.

We move quickly, trust each other to deliver, and give you space to own your work from day one.

In this role, you will:

• Build Python-based workflows to access, transform, and analyse large-scale geospatial and meteorological datasets for AI/ML applications
• Work directly with cloud-native formats like Zarr and COG, and parallel computing tools like Dask
• Develop workflows that integrate multiple satellite and model datasets, handling varying spatial and temporal resolutions and performing spatial & temporal harmonisation
• Implement automated CI/CD pipelines using GitLab to manage quality checks, tests, and deployment
• Carry out performance benchmarking, scalability testing, and code optimisation to ensure efficient processing of multi-terabyte datasets
• Write clear documentation with ReadTheDocs and create user-facing usage examples as Jupyter Notebooks
• Collaborate closely with other developers and domain experts to make sure outputs are scientifically robust
• Contribute to internal LLM tooling and automation to improve efficiency

Restrictions

• Telecommuting is OK
• No Agencies Please

Requirements

Essential:

• Strong Python development skills, particularly for data processing and scientific analysis
• Experience with cloud-native data formats (Zarr, COG) and parallel processing (Dask)
• Confidence working with large earth observation datasets from satellites and models
• Familiarity with containerisation (Docker) and deployment in Linux environments
• Fluency with Git, GitLab, and GitLab Pipelines.
• A sense of urgency: you’re a responsive communicator who works quickly and to the highest standards
• The ability to thrive in ambiguity, tackling problems that might not be well defined and that may not have obvious solutions
• A burning desire to improve the current state of government software contracting.

Nice to have:

• Experience building software for government and public sector organisations
• An understanding of how to get the most out of LLM powered coding tools like Cursor and Claude Code
• Experience designing internal tools that automate tasks or integrate LLMs to improve developer or analyst workflows

About the Company

At Oxidian we create software products for government organisations in the UK and EU.

Mission

We’re doing to government software services what challenger banks did to banking.

Oxidian makes sure public money is well invested. We build software which best serves society by obsessing about customer service and user experience.

You’ll be a great fit if you share our values

• Customer Obsession: We talk to our users and learn from them to create outstanding digital experiences. We do everything we can to make our clients’ lives easy.
• Urgency: We’re responsive and work quickly. We take swift action by making informed decisions backed up by data.
• Impact: Our work is a public service. We exist to make sure taxpayer money is invested in software which benefits everyone.

Contact Info

• Contact: Harriet
• E-mail contact: careers@oxidian.com
• Web: https://oxidian.notion.site/Senior-Python-Developer-24373a11c3cc80319b17c750f759c19d