Company: Joulen
Location: Northern Ireland
Job Description:
Joulen in Belfast is seeking a Principal Software Engineer to act as the senior technical authority across product domains, shaping design principles, delivery strategy and operational standards while remaining hands-on.
You will mentor other engineers, advance trunk-based development, and govern AI-driven systems, with ownership of production reliability and collaboration with Head of Engineering to scale Joulen’s energy-market platform.
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Posted: October 31st, 2026