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# Python Developer

- **Company:** NTT Ltd.
- **Location:** Barcelona, Spain (Remote available)
- **Salary:** €75,000.0 - €90,000.0
- **Contract:** Permanent contract
- **Skills:** Artificial Intelligence, Software as a Service, Code Review, Continuous Integration, Distributed Systems, Python (Programming Language), Software Engineering, Warehouse Management Systems, Reliability of Systems, Technical Debt, Backend
- **Published:** September 24, 2026
- **Apply:** https://www.adzuna.es/contact-us.html

## About the Role

5+ years of professional experience developing software with Python in production environments.
Proven experience building and maintaining scalable backend systems or distributed applications.
Strong understanding of software engineering principles, including system design, testing, CI/CD, and technical debt management.
Experience working in complex, high-scale environments with performance and reliability constraints.
Familiarity or hands-on experience using AI tools or applying AI concepts to improve engineering workflows is highly valued.
Strong collaboration skills with experience in code reviews, mentoring, and knowledge sharing across engineering teams.
Ability to work independently in an async-first, remote environment with strong ownership and accountability.
Excellent problem-solving skills and a pragmatic approach to building maintainable, production-ready systems.

## Description

This role offers the opportunity to work on a high-scale, modern SaaS platform powering global e-commerce fulfillment operations. You will contribute to systems that process billions of orders annually, supporting merchants across leading marketplaces and online stores worldwide. Working in a fully remote, async-first engineering environment, you will join a team that values autonomy, clarity, and high-quality engineering practices over meeting-heavy workflows. The position involves solving complex scalability and performance challenges as the platform expands into new B2B use cases and higher-volume operations. You will also help integrate AI into engineering workflows, improving development efficiency, testing, and system reliability. This is an ideal opportunity for a seasoned Python engineer who enjoys building robust systems, improving architecture, and working collaboratively in a product-driven, distributed team.
Accountabilities:
Design, develop, and maintain scalable backend services and features using Python within a distributed, high-traffic e-commerce fulfillment platform.
Own features end-to-end, from requirement analysis and system design to implementation, testing, deployment, and monitoring.
Contribute to the evolution of a large-scale Warehouse Management System, ensuring performance, reliability, and maintainability at high volumes.
Participate in thoughtful code reviews, ensuring high engineering standards while mentoring and supporting team growth.
Collaborate with cross-functional engineers and product stakeholders to deliver clear, consistent, and scalable technical solutions.
Identify opportunities to optimize existing systems, reduce technical debt, and improve development workflows and CI practices.
Support the integration of AI tools and practices into engineering processes, including coding, testing, and operational workflows.
Write clean, well-documented, and maintainable code aligned with best practices and long-term system scalability.