Full-Stack Engineer - Build Core FinTech Infra

ApplyMint; Greater London; On-site; GBP 85,000 - 110,000; Full time

Job summary

Corgi is rebuilding financial infrastructure from the ground up, tackling core platform systems, data ingestion, and AI-powered workflows. You will join a small, high-output team that ships daily and collaborates across frontend, backend, and infra.

We value ownership and fast iteration, with production-grade systems and attention to reliability. You’ll work on insurance-related fintech problems, designing integrations and AI-driven improvements.

Qualifications

• Experience building web apps across the stack.
• Ability to work with Python, Golang, TS, Next.js, infra and PostgreSQL.
• Comfort with integration-heavy systems and external APIs.

Responsibilities

• Build core platform systems from MVP to production-grade with complex state handling.
• Ingest data pipelines by parsing real-world formats from third-party systems.
• Develop AI systems that impact business outcomes.
• Ship features across multiple products and user types.
• Design integrations with external platforms and monitor for issues.

Skills

Full-stack web apps

Python

Golang

TypeScript

Next.js

PostgreSQL

API integration

Production systems

AI workflows

Tools

AWS

Docker

Job description

Corgi is rebuilding financial infrastructure from the ground up, tackling core platform systems, data ingestion, and AI-powered workflows. You will join a small, high-output team that ships daily and collaborates across frontend, backend, and infra.

We value ownership and fast iteration, with production-grade systems and attention to reliability. You’ll work on insurance-related fintech problems, designing integrations and AI-driven improvements.