Frontend Software Engineer - React (m/f/d)
SIXT Portugal · Lisbon
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- Company
- SIXT Portugal
- Location
- Lisbon
- Posted
- September 23, 2026
About this job
Sixt is building toward a spec-and-review way of working: engineers turn product problems into clear specifications, direct AI coding agents to build them, and own the quality of what ships. This role sits at that level — you deliver primarily by specifying and reviewing, backed by the frontend depth to read, debug, and stand behind every change. YOUR ROLE AT SIXT Turn ambiguous product problems into clear, testable specifications — success criteria and edge cases spelled out — that agents can execute against Work with AI tools, adapt and improve agentic ecosystem by building strong guardrails and processes that keeps the product stable Drive agents in small, verifiable steps, correcting and re-steering when the output drifts from intent Own what your agents ship to production: debug to…
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