Senior Backend Engineer Full Time

About us / Corporate presentation
Holafly is a fast-growing start-up that is changing how travelers connect to the internet
abroad. Since 2018, we have been providing peace of mind to travelers around more than
150 worldwide destinations. We are a young and international team of over 500 people
based worldwide working to provide stress- free experiences for all travelers.
We are looking for someone with experience in this industry who can help us keep
growing. Above all, we are seeking an individual who enjoys working in a team, can
express ideas assertively, and wants to contribute, learn, and feel useful.
We are specifically seeking a Senior Backend Developer (100% remote) who can apply
best practices that will be a significant part of their daily work. This role also involves
taking on responsibilities as a Software Architect, focused on operations and automation.

The ideal candidate will combine strategic thinking with hands-on skills to streamline and
scale processes effectively.

✦Team presentation

You would be part of the IT Delivery team. We currently have more than 40 colleagues
working internationally from home. For us, companionship and enjoyment when doing our
work come first. We believe in continuous improvement, automation and collective
knowledge without leaving human values behind. Always following best practices.
As a Backend Engineer, you will be the technical engine behind our global connectivity platform, ensuring our services are scalable and resilient. You will own the development of high-performance APIs, directly enabling millions of users to stay connected anywhere in the world.

Key Responsibilities

• Build and optimize mission-critical microservices using Python, Django, and Django REST Framework (DRF).
• Engineer Quality Frameworks by implementing robust unit testing (Pytest) and automated quality checks to ensure elite code standards.
• Architect scalable APIs from scratch, ensuring they can handle high-concurrency traffic during peak travel seasons.
• Eliminate technical debt by identifying and resolving performance bottlenecks, including N+1 query issues and asynchronous task optimization.
• Collaborate across borders with Product and QA teams to translate complex business logic into maintainable technical solutions.
• Champion best practices in the software lifecycle, from design patterns and documentation to comprehensive code reviews.

Qualifications

• 5+ years of experience in backend development with a mastery of Django and Django REST Framework (DRF).
• Strong expertise in Unit Testing and establishing quality-first development frameworks.
• Proven experience designing microservices architectures and integrating complex third-party ecosystem applications.
• Proficiency in asynchronous programming and managing high-load database queries.
• Professional-level English (C1 minimum) for effective collaboration in our global environment.

Good to have

• Fluency or professional working proficiency in Spanish.
• Experience with Silk or other performance profiling tools.