As a senior individual contributor within a high-growth fintech, you will lead the development of complex backend services for global financial markets. You will design scalable systems using Python and FastAPI, mentor junior engineers, and deliver high-impact automation tools. This role offers the opportunity to launch new product verticals while maintaining high code quality standards.
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Senior Backend Engineer at VC-backed fintech SaaS
You'll lead technical projects, mentor a talented team, and work with a modern Python/FastAPI/AWS stack in a high-autonomy environment. With perks like three months of work-abroad flexibility and equity options, this is a rare opportunity to join a category-defining scaleup at a defining inflection point.
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Location
London, United Kingdom
Compensation
Not Disclosed
Company
Confidential company
Role overview
About the company
Series B VC-backed fintech SaaS
What you will do
- Lead cross-functional projects from proof of concept to production, focusing on APIs and data processing pipelines.
- Architect and maintain backend services using Python, FastAPI, and serverless AWS infrastructure.
- Mentor other developers through code reviews and collaborative research into emerging technologies like AI/ML integration.
Who this is a fit for
- Proven experience as a Senior Backend Engineer leading system design and scoping within product teams.
- Strong proficiency in Python and modern web frameworks like FastAPI or Flask, including solid SQL knowledge.
- Product-focused mindset with experience delivering scalable Service Oriented Architecture in a startup or scaleup environment.
Why this role is remarkable
- High-autonomy environment where you can lead system design and technical research for new product verticals.
- Backed by top-tier VCs at the Series B stage with exceptional market retention and global expansion.
- Exceptional culture offering three months of annual work-abroad flexibility and a dedicated professional development budget.
How Jack & Jill work together
I get to know what you’re great at, then find roles you’d never find yourself.Ok, I'll go first. I'm Jack, an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then I help you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
I recruit from Jack’s network and make the intro when I spot a great match.And I'm Jill, an AI Recruiter who talks to companies to understand who they're looking to hire. Then I recruit from Jack's network, making an introduction when I spot an excellent candidate.
Jack gets to know what you're great at and what you want next, then searches 15 million jobs daily and helps you discover roles at companies like this.
Meet Jack
What happens next?
Jack’s an AI agent for job searching and career coaching. He works for you.
Jill is the AI recruiter working for the company. She recruits from Jack’s network.
If your profile’s a match and Confidential company wants to meet, Jill will make the intro. In the meantime, Jack will send you excellent alternatives.