Senior Backend Engineer (Python / Django)

Holafly; Tarragona; A distancia; EUR 50.000 - 70.000; Jornada completa

Descripción de la vacante

A fast-growing start-up in Tarragona is seeking a Senior Backend Developer to join their IT Delivery team. This fully remote role requires expertise in Python and Django, focusing on developing scalable microservices and high-performance digital services. The ideal candidate will enjoy teamwork, have strong problem-solving skills, and be fluent in both Spanish and English. Join a dynamic team dedicated to improving travel experiences worldwide.

Formación

• 5+ years working as a developer with expertise in Python + Django.
• Experience managing N+1 Queries Problem.
• Experience with asynchronous Django model.

Responsabilidades

• Participate in all phases of the software development lifecycle.
• Design and develop high-performance digital services.
• Collaborate with cross-functional teams.

Conocimientos

Initiative

Problem-solving

Teamwork

Empathy

Results-driven

Self-motivated

Herramientas

Python

Django

Django API Rest

pytest

siLK

Descripción del empleo

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.

• What will you do?

In 1 month : Get to know the team, main projects, and stakeholders with their characteristics and interlocutors.

Familiarize yourself with the framework and work technologies.

Understand and follow corporate procedures (time entry, vacation requests, communications, ...).

Start contributing and proposing improvements based on your previous experience and knowledge.

You will begin to solve your first incidents, question, and propose solutions.

In 3 months : You will have autonomy and will be working independently with stakeholders and projects.

Contribute to the evolution and improvement of Holafly projects, as well as work methodologies and tools.

In 6 months : You will be in charge of projects / initiatives appropriate to your expertise and knowledge, interacting with stakeholders and proposing solutions.

At all times, you will have the collaboration of your colleagues for any questions you may need.

You will continue to evolve technically.

• Responsibilities

Participate in all phases of the software development lifecycle, from design and development to testing and deployment.

Design and develop high-performance digital services (APIs, automatizations, ...) with a focus on maintainability and scalability.

Help your colleagues with the evolution and deployment of high availability platforms in the cloud.

Define and implement robust and scalable microservices architectures.

Develop and maintain core business logic and data models.

Write clean, well-documented, and testable code, ensuring code quality and efficiency.

Incident investigation and resolution.

Development of tools for the automation of tasks.

Documentation and improvement of procedures.

Interlocution and direct contact with the stakeholders and business analysts.

Technical and planning monitoring of projects / initiatives.

Guide and support your colleagues in their professional development.

Collaborate with cross-functional teams working closely with frontend developers, product managers, and QA engineers.

Implement unit and functional tests.

Promote and enforce best practices in software development, including code reviews, testing, and documentation.

Collaborate with the architecture team to define and evolve system architecture.

Identify and resolve performance bottlenecks.

Evaluate and recommend new technologies and tools.

• What do we expect?

Personally

• Initiative and problem-solving skills.
• Teamwork and empathy towards colleagues and stakeholders.
• Results-driven, self-motivated, and able to work independently.
• Bilingual proficiency : Fluency in Spanish and English (C1 minimum).

Technical background and skills : Solid base in the following areas or technologies :

• 5+ years working as a developer, with demonstrated expertise in Python + Django
• Nice to have : Django API Rest.
• Deep knowledge and experience developing microservices architectures, supported by the repository-service pattern to isolate dependencies on third-party libraries and connections from business logic.
• Knowledge and application of design patterns.
• Experience in testing with pytest.
• Experience managing N+1 Queries Problem (must).
• Experience using Django on an asynchronous model.
• Experience with siLK.
• Proven expertise in reference web architectures.
• Proven experience in third-party application integration.
• Ability to work with legacy code.
• Basic knowledge of cloud providers and their main services.
• Highly valuable to have certifications related to these skills.

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