We are looking for a highly experienced

Senior Software Engineer

to join our

Accounting squad , with the role open in

London, Paris or Barcelona .
You will help shape the technical direction of the squad, lead complex initiatives and contribute to building reliable financial systems that support accurate bookkeeping and month-end close.
The

Accounting squad

is responsible for making sure that spend data is correctly prepared, enriched, coded and reconciled before it reaches accounting systems. We build the workflows and automations that turn complex financial operations into reliable, traceable and efficient processes for finance teams.
You will work closely with Product, Design, Accounting specialists and other Engineering teams to solve complex domain problems and deliver robust systems. You will be expected to contribute beyond implementation by shaping architecture, clarifying technical trade-offs, raising engineering standards and helping the squad make sound long-term decisions.
Our stack

TypeScript

Node.js

for backend and banking applications

React

on the frontend





PostgreSQL

for data storage;

Redis ,

SQS , and

Kafka

for jobs and queues

Terraform

to define our infrastructure

Kubernetes ,

Lambdas , and

Step Functions

to run our applications

AWS

as our cloud provider

GitHub Actions

for CI

Key Responsibilities

Lead the design and development of reliable systems for bookkeeping preparation, payables and payment workflows.

Build rules-based automation for payable and expense coding.

Improve how spend data is enriched, classified, validated and reconciled.

Contribute to supplier and receipt management capabilities.

Build clear accounting visibility and auditability for Finance teams.

Design robust workflows that handle complex financial rules, exceptions and reconciliation scenarios.

Define and evolve scalable architectures, domain boundaries and integration patterns.

Own technical initiatives from discovery and architecture throu

📌 Senior Software Engineer, Accounting (Madrid)
🏢 Spendesk
📍 Madrid