Senior Software Engineer (Python) at Anemoi

Department: EngineeringSeniority in posting: Experienced

Location: England
Type: Contract
Level: senior
Posted: Sep 10, 2026

Description

Anemoi Marine Technologies is hiring a Senior Software Engineer (Python) for a 3–6 month contractor assignment in London. The role leads the design, development, testing, packaging, release, and handover of scientific and engineering software, including architectural decisions, reproducible calculations, engineering practices, documentation, and knowledge sharing. Candidates need professional software development experience, advanced Python skills, experience with reusable Python libraries, scientific or data-intensive software, SQL, and technical leadership; a degree or equivalent experience in a quantitative discipline and familiarity with scientific data tools are desirable.

Required Skills

Python
SQL
Automated testing
Git
Scientific calculations
Technical leadership

Additional Information

Required Previous Experiences: Professional software development experience, typically four or more years, with evidence of leading the delivery of non-trivial software.
Experience designing, building, testing, packaging, and releasing reusable Python libraries or applications.
Experience establishing effective engineering practices, including automated testing, code review, documentation, dependency management, continuous integration, and version control with Git.
Experience with numerical, scientific, engineering, or data-intensive software, including appropriate verification of calculations and edge cases.
Working knowledge of SQL, including writing queries to retrieve, filter, join, and aggregate data.
Preferred Qualifications: A degree or equivalent experience in computer science, engineering, mathematics, physics, or another quantitative discipline.
Experience with scientific and data tools such as NumPy, SciPy, pandas or Polars, Pydantic, Plotly, or equivalent technologies.
Experience with time-series or sensor data, data validation, numerical optimisation, simulation, statistics, or uncertainty analysis.
Familiarity with typed Python, developer and user documentation, linting and formatting tools, and modern Python project tooling.
Experience verifying scientific software against analytical, experimental, or independently produced reference results.
Experience taking ownership of an early-stage codebase and preparing it for continued development by another engineer or team.
Experience working in an engineering-led or renewable-energy business.
Experience handling commercially sensitive or customer-supplied technical data.