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Joom
Joom
201 – 500 Employees
B2BeCommerceMarketplace
Joom develops technology and marketplaces that make cross-border commerce easier for consumers and businesses. Its products include the Joom consumer e-commerce marketplace, JMS API and white-label tools that help local marketplaces offer international inventory, JoomPro for B2B trade, JoomPulse for AI-driven analytics, and vertical marketplaces such as Onfy for pharmaceuticals. With headquarters in Lisbon and offices worldwide, Joom brings together teams working on marketplace technology, automation, analytics, international logistics, and global supply and demand.
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Software Engineer, AI and E-Commerce Systems

Build complex, AI-enabled systems for Joom Group’s global e-commerce businesses, spanning logistics, high-load B2B infrastructure, machine learning serving, and internal LLM tools.

PTPortugalHybridFull-timeMiddleSeniorEnglish RequiredPortuguese RequiredSoftware Engineer

Description

  • Solve challenging problems and build impactful products.
  • Improve cross-border logistics with machine learning.
  • Design high-load B2B systems.
  • Build service infrastructure using AI agents.
  • Develop internal tools powered by large language models.
  • Apply technical expertise and new ideas to create business impact.
  • Improve user experience and business efficiency.
  • Run experiments, deploy changes, and measure business outcomes in real time.
  • Work with colleagues across countries, businesses, and products.

Requirements

  • A record of building complex, dependable systems.
  • Strong knowledge across the technology stack, from infrastructure to machine learning serving.
  • Experience with AI coding tools such as Cursor, Claude Code, or GitHub Copilot.
  • Ability to make decisions based on data and measurable results.

Benefits

  • Performance-based bonuses
  • Stock options
  • Flexible working hours
  • Option to work remotely for 52 days each year
  • Health insurance, including dental care, for employees and their children
  • Daily meal allowance
  • Full pay during sick leave
  • Relocation support for employees and their families
  • Licenses and access to a broad range of AI tools
  • Promotion opportunities
  • Professional training
  • English and Portuguese language courses
  • Annual team-building activities
  • Knowledge-sharing workshops

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