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Junior Partner Integration Engineer

Hungary, Budapest · Job Posted December 07, 2025
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Job Description

As a Junior Partner Integration Engineer at Cozycozy, you will be a vital member of the team responsible for connecting and expanding our global inventory of over 20 million accommodations. Working closely with Senior Engineers, you will contribute directly to the development of new integrations and the maintenance of our high-volume back-end data pipelines. This role is ideal for an ambitious engineer looking to build a foundational career in high-scale back-end systems using modern technologies like Node.js/TypeScript and gain hands-on experience with complex integration challenges (APIs and web scraping). You will receive mentorship and support while making a direct, measurable impact on our product’s core offering.

Job Responsibility

  • New Integrations: Assist Senior Engineers in developing, testing, and deploying integrations with new accommodation partners using Node.js/TypeScript
  • Data Collection: Write and maintain reliable code to fetch both static partner information and real-time price & availability data, utilizing partner APIs or web scraping tools
  • Troubleshooting: Actively participate in debugging and resolving issues related to existing integrations to ensure data accuracy and reliability
  • Data Processing: Contribute to the maintenance and enhancement of back-end services responsible for data ingestion and processing, learning about performance optimization and scalability
  • Database Operations: Perform basic operations and assist in optimizing queries across our MongoDB and PostgreSQL databases, under senior guidance
  • Asynchronous Logic: Learn and apply concepts of RxJS and reactive programming within the Node.js environment to manage data streams efficiently
  • Code Quality: Participate in regular code reviews, offering constructive feedback and learning best practices for writing clean, well-tested, and maintainable code
  • Documentation: Create and update technical documentation for new and existing partner integrations
  • Teamwork: Collaborate effectively with the engineering team, product managers, and business stakeholders to understand integration requirements

Requirements

  • 1-2 years of professional experience in software engineering, preferably in a back-end focused role, or equivalent project experience
  • Core stack knowledge and experience in Node.js, JavaScript & TypeScript
  • Familiarity with either NoSQL (MongoDB) or relational (PostgreSQL) databases
  • A basic understanding of web concepts is a plus (cookies, sessions handling etc)
  • High curiosity and a strong desire to learn complex system architecture, data integration techniques, and reactive programming principles (RxJS)
  • A meticulous approach to writing code and debugging data synchronization issues
  • Good written and verbal communication skills in English, suitable for a collaborative international environment
  • An ability to take ownership of assigned tasks and seek help proactively when blocked
  • Genuine enthusiasm for technology, travel, and joining a high-growth company

Nice to have

A basic understanding of web concepts is a plus (cookies, sessions handling etc)

What we offer

  • Opportunity to learn from and be mentored by Senior engineers, accelerating your professional and technical growth
  • A stimulating and supportive work environment with an international team (12 nationalities represented) that is passionate about travel and innovation
  • Strong entrepreneurial and open-minded culture with numerous projects to imagine and lead
  • Enjoy our office in the center of Budapest with unlimited coffee, tea, drinks, and snacks

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