Software Engineer

Harvey Nash; City Of London; On-site; GBP 80,000 - 100,000; Full time

Job summary

A high-growth fintech startup in King's Cross is looking for a Founding Engineer to build their Payments Platform API from scratch. This role offers the chance to shape the tech stack and product direction while working closely with the founders. The ideal candidate will have strong C# skills, familiarity with cloud technologies (AWS preferred), and some experience with modern frontend frameworks like React. Competitive salary of 70k plus equity is offered.

Qualifications

• Strong in C# and cloud technologies, preferably AWS.
• Experience with modern frontend frameworks such as React.
• Exposure to AI tools and technologies is a plus.

Responsibilities

• Contribute to building a Payments Platform API from the ground up.
• Take ownership of the tech stack and shape product direction.

Skills

C#

Cloud (AWS preferred)

React or modern frontend frameworks

AI tools/technologies exposure

Startup environment adaptability

Job description

Overview

Founding Engineer - Fintech Startup 70k + Equity King's Cross (On-site)

About the company: Join a high-growth fintech startup in King's Cross as their Founding Engineer, working directly with the founders to build a Payments Platform API platform from the ground up. This is an exciting opportunity to take ownership of the tech stack, shape the product, and have a real say in the direction of the company.

Responsibilities

• Contribute to building a Payments Platform API platform from the ground up.
• Take ownership of the tech stack and participate in shaping the product and technical direction.

Qualifications

• Strong in C# and Cloud (AWS preferred).
• Ambitious technologist who is passionate about building market leading Payments API Platforms
• Some experience with React or modern frontend frameworks.
• Exposure to AI tools/technologies (personal or professional).
• Proactive, ambitious, and thrives in startup environments.