Backend Software Engineer (Kotlin / Java) - Medellín

About the role

A global cybersecurity company is hiring two bilingual backend engineers to join its product development team, which builds an Insider Risk Management platform protecting corporate customer data. The two seats are for a Software Engineer I (1-2 years of experience) and a Software Engineer II (2-5 years of experience). The work is 100% on-site in Medellín, Monday to Friday.

Key responsibilities

• Build new services and APIs and maintain existing ones on AWS, processing billions of events from customers worldwide
• Write unit and integration tests, infrastructure-as-code and manage deployments
• Debug and troubleshoot across the stack, support production issues and take part in an on-call rotation
• Take part in design discussions, code reviews, design docs and demos
• Work with Product, UX, QA and other engineering teams in an AI-first engineering culture
• For the Level II seat: own services end to end, turn ambiguous requirements into technical designs and mentor teammates

Required profile

• Professional backend experience with Kotlin (the team's main language) or Java
• Object-oriented development, microservices or multi-tier systems
• Testing frameworks and CI/CD
• Data technologies such as PostgreSQL and/or Elasticsearch
• Cloud experience, ideally AWS, and infrastructure-as-code (required for Level II, a plus for Level I)
• Hands-on use of AI development tools (Copilot, Cursor, Claude Code or similar)
• Agile / lean ways of working
• Professional written and spoken English, used daily in code reviews, design docs and meetings