> Markdown version of [/jobs/ext/3268344-python-engineer-b2b-saas-fintech-ai](https://www.wearedevelopers.com/jobs/ext/3268344-python-engineer-b2b-saas-fintech-ai). 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).

---

# Python Engineer - B2B SaaS Fintech - AI

- **Company:** Landytech
- **Location:** UK (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Unit Testing, Big Data, C++ (Programming Language), Code Review, Extract Transform Load (ETL), Data Structures, Relational Databases, Database Design, Software Debugging, Python (Programming Language), NumPy, Object-Oriented Software Development, System Programming, Data Processing, Integration Tests, Solid Principles, Data Pipelines
- **Published:** September 5, 2026
- **Apply:** https://startup.jobs/senior-python-engineer-b2b-saas-fintech-ai-landytech-8366744

## About the Role

* Solid understanding of data structures, algorithms, and software design principles
 * Good knowledge of Python and object-oriented programming principles
 * Understanding of relational databases and database design fundamentals
 * Familiarity with unit testing and integration testing practices Comfortable working collaboratively in a team environments

Nice to have

 * Experience with low-level programming languages (Rust, C++)
 * Financial domain knowledge: understanding of financial concepts, metrics, or fintech/finance experience
 * Experience building data pipelines, ETL processes, or handling large-scale data
 * Familiarity with modern data processing libraries (NumPy, Polars, DuckDB), * Beyond the technical requirements, we value engineers who:
 * Are self-motivated and eager to learn and expand their skills
 * Possess an analytical mindset with strong attention to detail
 * Take pride in writing maintainable, well-tested code
 * Are excited about working at the intersection of technology and finance
 * Bring fresh perspectives and ideas to the team

## Description

* Develop and maintain robust APIs for processing and publishing financial metrics
 * Write clean, efficient, and well-documented code
 * Collaborate with the team to design scalable solutions for financial data pipelines
 * Participate in code reviews and contribute to engineering best practices
 * Debug and optimize existing systems for performance and reliability
 * Work closely with stakeholders to understand requirements and deliver solutions


## Related Videos

- [Inside Bitpanda's Tech Stack: Scaling a European Fintech Leader - Markus Dorner](https://www.wearedevelopers.com/videos/1979-inside-bitpanda-s-tech-stack-scaling-a-european-fintech-leader-markus-dorner)
- [Are Code Reviews Worth It? Insights from 16 Years of Review Data](https://www.wearedevelopers.com/videos/1135-are-code-reviews-worth-it-insights-from-16-years-of-review-data)
- [Alibaba Big Data and Machine Learning Technology](https://www.wearedevelopers.com/videos/37-alibaba-big-data-and-machine-learning-technology)
- [Vectorize all the things! Using linear algebra and NumPy to make your Python code lightning fast.](https://www.wearedevelopers.com/videos/562-vectorize-all-the-things-using-linear-algebra-and-numpy-to-make-your-python-code-lightning-fast)
- [From Messy Queries to Scalable Systems - How Data Engineering actually works](https://www.wearedevelopers.com/videos/100203-from-messy-queries-to-scalable-systems-how-data-engineering-actually-works)
- [Build a CI/CD pipeline to automate code reviews and ensure code quality](https://www.wearedevelopers.com/videos/349-build-a-ci-cd-pipeline-to-automate-code-reviews-and-ensure-code-quality)

## Related Articles

- [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk)
- [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london)
- [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)
- [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)
- [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market)
- [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk)