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Senior Python Backend Architect — FinTech​/Banking

Job in Bromley, Greater London, BR1, England, UK
Listing for: Ascendion
Full Time position
Listed on 2026-07-31
Job specializations:
  • Software Development
    Python, Backend Developer, SQL Developer
Salary/Wage Range or Industry Benchmark: 90000 - 130000 GBP Yearly GBP 90000.00 130000.00 YEAR
Job Description & How to Apply Below

Ascendion is seeking an experienced Senior Python Developer to join a leading global banking client in the United Kingdom. You will design, develop, and maintain scalable Python backend services and batch processing solutions while optimizing SQL queries across multiple databases.

The role requires Linux proficiency, automation, and strong testing with PyTest/TDD/BDD. Ideal candidates have 12+ years of Python development experience, solid OO design skills, and familiarity with enterprise

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Position Requirements
10+ Years work experience
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