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# Back End Engineer

- **Company:** Abacum
- **Location:** Barcelona, Spain
- **Salary:** €50,000.0 - €70,000.0
- **Contract:** Permanent contract
- **Skills:** Data Structures, Data Systems, Python (Programming Language), PostgreSQL, Machine Learning, Scrum Methodology, Software Engineering, Pandas, Kubernetes, Data Management
- **Published:** June 12, 2026
- **Apply:** https://www.jobleads.com/job/e677a9af7a6620f6dbad47982365ffb78

## About the Role

A leading software development firm in Barcelona is seeking a Senior Back End Engineer. This role requires strong experience in Python, PostgreSQL, and Kubernetes, with a focus on creating innovative solutions for finance teams. Candidates should have a product mindset and be team players, able to collaborate effectively. The position offers a full-time contract with competitive benefits including private health insurance and a flexible vacation policy., * Strong ownership mindset and a willingness to learn quickly.

 * Experience in building complex data solutions in a collaborative environment.
 * A passion for developing innovative technology for finance teams., PostgreSQL
Kubernetes
Product mindset
Team player
Complex data structures
Deep understanding of performance, Stack

 * Python
 * PostgreSQL
 * Kubernetes

Methodology

 * Agile/Scrum
 * Data driven, * Product mindset
 * Team player
 * Complex data structures
 * Deep understanding of performance when building and operating through observability

Bonus points if you have

 * Experience with Pandas, Polars or similar DataFrames technologies
 * Experience building ML and AI solutions
 * Experience scaling complex data platforms

## Description

* Collaborate with cross-functional teams to test new ideas.
 * Design reusable and performant user interfaces.
 * Take operational responsibility for the components you create.
 * Incorporate customer feedback for continuous product improvement., * Collaborate closely with engineers, product designers, and product to perform experiments and test new ideas.
 * Build performant, design-centric, reusable and usable interfaces that solve complex needs, such as customisation possibilities for our users; complex data visualisations (graphs, charts, etc...), delightful components that provide the best platform experience.
 * Drive user-defined data modelling and performance, providing the user with customization possibilities through reusable building blocks: models, variables, formulas…
 * Take operational responsibility for the components that you write.
 * Work in an environment that supports your individual growth, providing you with challenging tasks and projects to solve and the freedom to acquire new skills in hack time.
 * Work with product and our operations team to incorporate customer feedback to constantly improve our product.
 * Scale our complex data and calculations platform for a fast-growing number, size and complexity of clients.


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