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# software engineer

- **Company:** Clarity AI
- **Location:** Madrid, Spain
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Airflow, Amazon Web Services, Automation of Tests, Computer Programming, Continuous Integration, Data Infrastructure, Cursor, Python (Programming Language), PostgreSQL, Software Engineering, SQL Databases, TypeScript, Trunk-based Development, Datadog, Great Expectations (Foster Youth College-readiness and Support Program), Claude Code, Snowflake, Grafana, Agentic-AI, Fastapi, Kubernetes, Extreme Programming, Terraform
- **Published:** November 13, 2026
- **Apply:** https://www.adzuna.es/details/5962871622

## About the Role

* 6+ years of software development experience. You have built data-heavy systems or a data platform.
 * Strong Python skills, for example, FastAPI. Good design, automated tests, and clean APIs. Go or TypeScript is a plus.
 * Hands-on work with Airflow or a similar tool. You understand how data moves through pipelines that depend on each other.
 * Good SQL. You know Postgres and a cloud data warehouse. Snowflake is best.
 * Containers, Kubernetes and CI/CD. You can run what you build in production.
 * Testing is part of the work for you, not a step for later. This includes data quality.
 * A product mindset. You care about the people who use the platform and about results.
 * Ownership. You lead technical designs, deliver large pieces of work across several systems, and get agreement from others.
 * Experience with Lean and XP: trunk-based development, TDD, pair and ensemble programming, small safe steps.
 * You use AI agents (Claude Code, Cursor, MCPs, and similar) to build and run systems.
 * Fluent English. Spanish is a plus.
 * You live in Spain. We pair in real time, so we work in the same time zone.

## Description

We are looking for a Senior Software Engineer in Madrid to own the data platform in the Foundational Engineering team.
You are a software engineer who likes data. You build the systems that send our data to clients. You know how that data moves from its source to the release.
Our team builds the platform that all of Tech uses. On the data side, the platform has two parts:

 * The data release. This is the regular process that sends our ESG and investment data to clients. An application runs it. The application tracks the state of each release and shows teams what is ready, what failed, and what to retry.
 * The pipeline platform. This is Airflow on Kubernetes. Every team depends on it.

Why we are hiring now
Clarity AI and Glass Lewis are now one company. The data platform is at the center of this integration. More data, more products, and more teams will depend on the release. We need a person who can own it in the first months. You will make it more reliable and easier for teams to use on their own. You will also help bring Glass Lewis data into it., * dbt, data quality tools (Soda, Great Expectations), and data contracts.

 * Argo Workflows, Helm, Terraform on AWS.
 * Monitoring for pipelines: Grafana, Loki, Datadog.
 * Financial or ESG data, or data products for clients.
 * DDD and Team Topologies.