Principal Software Engineer – Monetization Platform Lead

HubSpot; Ireland; Remote; EUR 148,000 - 215,000; Full time

Job summary

HubSpot in Ireland is seeking a Principal Software Engineer to help architect, build, and influence the evolution of HubSpot’s monetization model and strategy — and to do it incrementally, on a system that is live and load-bearing every day.

This is a hands-on role (70-80% coding) with design reviews, architecture ownership, and cross-functional collaboration across Adaptive Monetization and the broader fintech engineering org; you will mentor engineers and drive reliability while navigating a

Qualifications

• Experience designing distributed systems with financial correctness requirements.
• Background at a publicly traded company with audit rigor and real-money consequences.
• Ability to operate on complex legacy systems and improve incrementally.
• Strong executive communication skills for CFOs and non-engineers.
• Mentorship orientation; help engineers grow.
• Comfort with ambiguity in fast-changing, high-stakes environments.
• Deep backend engineering expertise focused on financial logic and contracts.

Responsibilities

• Architect the future of HubSpot's contract and monetization layer.
• Write production code regularly and lead design reviews; own initiatives end-to-end.
• Drive multi-team efforts across Adaptive Monetization and fintech org.
• Incrementally improve load-bearing systems while maintaining reliability.
• Translate technical decisions for finance, compliance, legal, and executives.

Skills

Distributed systems design

Backend engineering

Technical leadership

Architecture reviews

Mentorship

Executive communication

Auditing/compliance awareness

Tools

Corex framework

Job description

HubSpot in Ireland is seeking a Principal Software Engineer to help architect, build, and influence the evolution of HubSpot’s monetization model and strategy — and to do it incrementally, on a system that is live and load-bearing every day.

This is a hands-on role (70-80% coding) with design reviews, architecture ownership, and cross-functional collaboration across Adaptive Monetization and the broader fintech engineering org; you will mentor engineers and drive reliability while navigating a