> Markdown version of [/jobs/ext/2252365-sr-python-developer](https://www.wearedevelopers.com/jobs/ext/2252365-sr-python-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Sr. Python Developer

- **Company:** The Ascent Services Groupdion
- **Location:** Bromley, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Agile Methodology, JIRA, Unit Testing, CA Workload Automation Ae, Bash Shell, Behavior-Driven Development, Information Technology Consulting, Python (Programming Language), PostgreSQL, Linux System Administration, Microsoft SQL Server, MySQL, Object-Oriented Software Development, Software Architecture, Freeform SQL, Enterprise Software Applications, Test-Driven Development (TDD), Git, Pytest, Git Flow, Solid Principles, Information Technology, Deployment Automation
- **Published:** August 26, 2026
- **Apply:** https://www.collegerecruiter.com/job/2815089666-sr-python-developer

## About the Role

We are seeking a highly experienced Senior Python Developer with a proven track record of designing, developing, and optimizing large-scale applications. This role is ideal for someone who thrives in complex problem-solving, writes clean and efficient code, and understands the bigger picture of software architecture and design.

## Description

Overview

UK/EU - Talent Manager - Digital/Fintech Expert/Business Development - Transforming careers - President Circle Winner !!

We are seeking a highly experienced Senior Python Developer with a proven track record of designing, developing, and optimizing large-scale applications. This role is ideal for someone who thrives in complex problem-solving, writes clean and efficient code, and understands the bigger picture of software architecture and design.

Key Responsibilities

 * 12+ years of experience in Python development with expertise in OOP and software design principles.
 * Write and optimize complex SQL queries for PostgreSQL, MySQL, or SQL Server.
 * Work in Linux environments, including bash scripting and deployment automation.
 * Manage and schedule workflows using Autosys.
 * Collaborate with teams using GIT (branching strategies, pull requests, and merging workflows).
 * Track and manage project tasks using JIRA within an Agile framework.
 * Apply Test-Driven Development (TDD) and Behavior-Driven Development (BDD) practices, leveraging Behave and PyTest for unit and integration testing.

Why You'll Love It Here

 * Work on exciting, high-impact projects.
 * Collaborate with some of the brightest minds in the field.
 * Competitive pay, great benefits, and opportunities to lead.

Seniority level

 * Mid-Senior level

Employment type

 * Full-time

Job function

 * Engineering, Design, and Information Technology
 * Industries
 * Banking, IT Services and IT Consulting, and Business Consulting and Services


## Related Videos

- [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94)
- [Improving quality with Agentic AI with Rovo Dev and Xray](https://www.wearedevelopers.com/videos/2005-improving-quality-with-agentic-ai-with-rovo-dev-and-xray)
- [MySQL Protocol Features You Should Be Aware Of](https://www.wearedevelopers.com/videos/100267-mysql-protocol-features-you-should-be-aware-of)
- [Enterprise Python: Software That Lives Long And Prosper](https://www.wearedevelopers.com/videos/946-enterprise-python-software-that-lives-long-and-prosper)
- [Branch your database like your code:  How schema changes and pull requests go hand in hand](https://www.wearedevelopers.com/videos/350-branch-your-database-like-your-code-how-schema-changes-and-pull-requests-go-hand-in-hand)
- [Coding for Good: Achieving social change with an app](https://www.wearedevelopers.com/videos/1645-coding-for-good-achieving-social-change-with-an-app)

## Related Articles

- [The 13 Best Python Libraries for Developers in 2025](https://www.wearedevelopers.com/magazine/371-the-13-best-python-libraries-for-developers-in-2025)
- [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer)
- [The 8 Best Code Testing Tools](https://www.wearedevelopers.com/magazine/402-the-8-best-code-testing-tools)
- [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london)
- [What Are The Top Skills Required For Azure Developers?](https://www.wearedevelopers.com/magazine/77-what-are-the-top-skills-required-for-azure-developers)
- [The 7 Most Popular Backend Frameworks for Developers](https://www.wearedevelopers.com/magazine/403-the-7-most-popular-backend-frameworks-for-developers)