Our client is building a next-generation financial services platform that brings premium banking, rewards, and account services together in one ecosystem. They’re already operating at serious scale, with $150M+ ARR and $4B+ in annual transaction volume, and they’re fully profitable. That’s rare: the stability of a proven business with the growth curve of a company still early in its story.
You’ll join a small, senior team at a genuine inflection point and own the backend systems behind it all: payments, rewards, account services, and partner integrations. Your work will directly shape the experience of a fast-growing, high-value customer base, and the architecture decisions you make now will define how the platform scales for years.
What you’ll do
Design and build backend services, APIs, and data models that handle high-volume, high-stakes financial transactions
Own features end-to-end, from first idea through launch and iteration, across payments, rewards, account services, and partner integrations
Build systems where correctness is non-negotiable, keeping money and data accurate through concurrency, retries, and failures
Help set the technical direction as the platform grows
Work closely with frontend and mobile engineers to ship polished, full-stack features
Raise the bar on reliability, performance, and observability
What you bring
Around 5+ years building backend or full-stack systems in production
Deep experience in at least one backend language (Python is a plus, since the stack uses Django)
Strong skills designing APIs, data models, and services, ideally on PostgreSQL and AWS
A track record of owning significant systems end-to-end
A degree in Computer Science, Engineering, or a related field, or equivalent practical experience
Nice to have
Experience in distributed, high-availability production environments
Familiarity with Django and TypeScript/React
A background in fintech, payments, banking, or rewards
Startup or small-team experience
A personal interest in credit cards, points, or travel
Why this role
Real ownership: a small team means your work ships and matters
Hard, interesting problems where accuracy and scale both count
A profitable company, so you get growth without the runway anxiety
$350k with Strong equity
Don’t tick every box? Please apply anyway. Strong engineers come from many backgrounds, and we’d rather hear from you than have you rule yourself out.
Interested? Reply and Goliath Partners will be in touch.
