A Python developer builds and maintains the server-side logic, APIs and data pipelines behind web apps, internal tools and analytics platforms. The day-to-day work is writing and reviewing code, fixing bugs, connecting services over REST APIs, querying databases and pushing changes through CI/CD. Most UK roles are backend or full-stack web work, with a smaller share in data engineering, automation or machine-learning support. The market is large and Python ranks among the most-requested languages on this site.
The stack employers list is fairly consistent. Django or FastAPI for web and API work, with Flask still common on older codebases; PostgreSQL or MySQL for relational data, often with Redis and sometimes MongoDB alongside. Most roles expect Docker, Git and a cloud platform, usually AWS and occasionally Azure or GCP. REST API design, OAuth2 or JWT authentication and writing tests with pytest appear in the large majority of specs. Data-leaning posts add pandas, SQL fluency and ETL pipeline experience. The language itself is the baseline; most of the role is the tooling and systems around it.
Pay varies by level. Junior roles run roughly £28k to £42k, mid-level developers with three to five years of experience around £45k to £60k, and senior roles typically £70k to £90k. ITJobsWatch puts the UK median for permanent Python developer roles at about £76k, with London paying higher. Fully remote and hybrid posts both exist, though hybrid, commonly two or three days on-site, is now the more common arrangement; fully remote roles attract heavy competition. Progression usually runs junior to mid to senior developer, then into a technical lead or architect track or engineering management. Some move sideways into data engineering, DevOps or machine learning, which tend to pay at the upper end of the range.
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Frequently asked questions
Do I need a computer science degree to get a Python developer job in the UK?
No. Many UK employers weigh a working portfolio and the ability to pass a technical screen more heavily than a degree. Bootcamp graduates, self-taught developers and career-changers are hired, particularly for junior and mid roles. A degree helps with some larger firms and graduate schemes, but a GitHub profile with real projects and solid pytest coverage often counts for more at interview.
Is FastAPI or Django more in demand for UK Python jobs?
Both appear frequently, and which matters depends on the role. Django is common in established web products and anything needing a built-in admin and ORM, so it is the safer single choice for backend web roles. FastAPI is growing for API-first and async services and appears often in newer codebases and microservices. Many specs list Django, FastAPI and Flask together, so being comfortable in at least two is an advantage.
How much should a mid-level Python developer expect to earn in the UK?
Around £45k to £60k base for someone with roughly three to five years of commercial experience, with London and fintech or AI-focused employers paying at or above the top of that band. Contract day rates are higher but carry no holiday or sick pay. Moving into data engineering, DevOps or machine-learning specialisms, or up to senior level at £70k to £90k, is the usual route past £60k.