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# Senior Software Engineer (Python)

- **Company:** Harnham
- **Location:** London, UK
- **Experience:** Expert
- **Salary:** £80,000.0
- **Contract:** Permanent contract
- **Skills:** Databases, Continuous Integration, Information Engineering, Django Web Framework, Github, Python (Programming Language), NoSQL, SQL Databases, Large Language Models, Generative AI, Cloudformation, Fastapi, Vue.js, Containerization, Tools for Reporting, Front End Software Development, Restful APIs, Terraform, Api Management, Docker, Microservices
- **Published:** September 8, 2026
- **Apply:** https://www.collegerecruiter.com/job/2840573045-senior-software-engineer-python

## About the Role

Are you a passionate Python engineer who thrives on building scalable, high-quality software? We're working with a multi-award-winning digital agency, recognised as one of the Sunday Times Best Places to Work, that's looking for a Senior Software Engineer (Python) to help shape the next generation of their data-driven tools and products., * 5+ years of experience as a Software Engineer, ideally in Python (3.10+).

 * Strong understanding of CI/CD pipelines (e.g. GitHub Actions) and containerisation (Docker).
 * Familiarity with databases (SQL, NoSQL, or graph) and API integrations.
 * Excellent communicator who thrives in a collaborative, fast-paced environment.
 * Experience with Generative AI / LLMs in applied engineering contexts.
 * Exposure to infrastructure-as-code (Terraform, CloudFormation, or CDK).
 * Familiarity with Vue.js or other front-end frameworks for collaboration with UI teams.

## Description

* Designing, building, and maintaining scalable Python-based applications and microservices.
 * Developing internal tools and automation to support both client delivery and internal teams.
 * Building, testing, and deploying RESTful APIs using frameworks like FastAPI or Django REST Framework.
 * Collaborating with data and platform engineers to integrate new features and optimise performance.
 * Ensuring robust engineering practices including CI/CD, TDD, and secure development.
 * Supporting and mentoring junior engineers, helping raise the technical bar across the team.
 * Staying hands-on while contributing to the architectural direction and long-term roadmap.


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