Referment

backend developer in fintech

In short

Senior backend developer role for a London-based B2B fintech SaaS company building an order-to-cash platform covering collections, payments, and reconciliation. The job involves designing backend systems, modeling complex business processes, and building integrations and APIs between modern and legacy systems. Requires 5+ years of Python experience and/or 2+ years with Django, strong database design skills, and clear written communication; Django REST Framework and AWS experience are a plus. Fully remote, full-time position.

About

Referment works with a London-based B2B fintech SaaS company that builds an order-to-cash platform for enterprise finance teams, covering collections, payments, and reconciliation.

Responsibilities

•Design robust backend systems

•Model complex business processes into elegant data structures

•Build reliable integrations between modern and legacy systems

•Develop APIs that connect disparate business systems

Requirements

•Five or more years of programming experience in Python and/or two or more years of experience with Django

•Expertise in the Django framework

•Experience building and maintaining large-scale applications

•Excellent database design and optimization skills, including complex data modeling and migrations

•Understanding of APIs and web services

•A portfolio demonstrating systematic, well-structured work

•Clear written communication skills

Nice to have

•Django REST Framework

•AWS experience

Conditions

•A regular and predictable schedule

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