Backend Developer

Onetree; Ciudad de México; Híbrido; MXN 600.000 - 900.000; Jornada completa

Descripción de la vacante

Onetree is seeking a Backend Developer to design, architect, and build scalable backend systems. You will contribute across the full SDLC and help deliver robust APIs in a collaborative, senior team.

The role requires 5+ years of senior experience with Node.js and Python, deep OOP/SOLID understanding, and cloud proficiency (AWS/GCP/Azure). You will work in a hybrid model from Mexico City, focusing on secure, well-tested backend architectures.

Formación

• Minimum of 5 years of proven senior-level experience in a Backend Developer role.
• Strong hands-on development experience with Node.js and Python.
• Deep understanding of Object-Oriented Programming (OOP) and SOLID principles.
• Experience with Cloud platforms (AWS, GCP, or Azure).
• Proficiency in testing frameworks such as Jest and Pytest.
• Expertise in GIT version control and SCRUM methodologies.
• Proven experience in Software Architecture, specifically with Microservices.
• Strong soft skills: Data analysis, Leadership, Decision-making, Communication, Planning, and Organization.
• Intermediate level of English.

Responsabilidades

• Develop functional and scalable applications across the full SDLC.
• Maintain code and write automated tests to ensure high quality.
• Create scalable and maintainable code and APIs.
• Design and develop robust APIs, including client-side and server-side architecture.
• Ensure technical solutions meet business requirements and consumption needs.
• Implement security configurations and data protection protocols.
• Draft clear and comprehensive technical documentation.

Conocimientos

Node.js

Python

OOP

SOLID principles

Data analysis

Leadership

Communication

Planning

Organization

English (intermediate)

Herramientas

Git

SCRUM

Jest

Pytest

AWS

GCP

Azure

Microservices

Descripción del empleo

We are looking for a Backend Developer to join our team and play a key role in the design, architecture, and development of functional and scalable applications.

Key Responsibilities

• Develop functional and scalable applications, participating in all phases of the software development lifecycle, from architecture design to functional implementation.
• Maintain code and write automated tests to ensure the product meets the highest quality standards.
• Create scalable and maintainable code.
• Design and develop robust APIs, including client-side and server-side architecture.
• Ensure technical solutions meet business and consumption requirements.
• Implement security configurations and data protection protocols.
• Draft clear and comprehensive technical documentation.

Requirements

• Location: Candidates must be based in Mexico City and work in a hybrid model.
• Minimum of 5 years of proven senior-level experience in a similar Backend Developer role.
• Strong hands-on development experience with Node.js and Python.
• Deep understanding of Object-Oriented Programming (OOP) and SOLID principles.
• Experience with Cloud platforms (AWS, GCP, or Azure).
• Proficiency in testing frameworks such as Jest and Pytest.
• Expertise in GIT version control and SCRUM methodologies.
• Proven experience in Software Architecture, specifically with Microservices.
• Strong soft skills: Data analysis, Leadership, Decision-making, Communication, Planning, and Organization.
• Intermediate level of English.

What We Offer

Opportunity to build challenging, end-to-end backend architecture solutions.

A highly collaborative work environment alongside senior technical teams.

Hybrid work flexibility and continuous professional growth.