Software Engineer - Payments Infrastructure

EC1 Partners; Greater London; On-site; GBP 65,000 - 90,000; Full time

Job summary

EC1 Partners in London is hiring a backend engineer to build payment processing infrastructure that handles high-volume, secure transactions. You will work on core services that ensure reliability, speed, and compliance across payment platforms.

The role emphasizes ownership, collaboration with product and engineering teams, and ongoing performance improvements for fault tolerance and monitoring in a cloud-native, financial services environment.

Qualifications

• Requires strong backend software engineering experience.
• Experience with payments or transactional systems.
• API development experience required.
• Experience building high-availability systems.
• Background in financial services is preferred.

Responsibilities

• Develop backend services for payments processing.
• Build scalable and resilient transaction flows.
• Collaborate with product and engineering teams.
• Support system monitoring and reliability.
• Improve performance and fault tolerance.

Skills

Backend development

Payments systems

API design

High availability

Financial services

Job description

Role Overview

This role focuses on building payment processing infrastructure supporting high-volume, secure transaction flows. You'll work on backend systems that ensure reliability, speed, and compliance across payment platforms.

Key Responsibilities

• Develop backend services for payments processing


• Build scalable and resilient transaction flows


• Collaborate with product and engineering teams


• Support system monitoring and reliability


• Improve performance and fault tolerance

Required Experience

• Backend software engineering experience


• Payments or transactional systems exposure


• API development experience


• Experience with high-availability systems


• Financial services background

Nice to Have

• Card, bank transfer, or real-time payments exposure


• Event-driven systems


• Cloud-native architecture

Why Join

• High-volume transaction environment


• Business-critical infrastructure


• Strong engineering ownership