Principal Engineer, Growth Mega Alliance (all genders)

The role

The Principal Engineer acts as a technical visionary for platforms powering customer acquisition, conversion, and retention. You will define architectural direction across five pillars, lead cross-cutting initiatives, and own the GenAI strategy.

What you will do

• Own GMA's GenAI strategy and establish agentic development workflows
• Own long-term technical architecture across five pillars
• Lead complex architectural decisions and drive high-impact migrations
• Define the experimentation strategy and execution framework
• Define GMA's multi-year technical vision and communicate it to engineers and executives
• Partner with other Mega Alliances to drive shared architectural standards
• Coach and grow Staff and Senior Engineers
• Champion AI-native development workflows, TDD, DDD, and DevSecOps
• Set written communication standards through design docs and architectural decision records

Required qualifications

• Practical, hands-on experience with AI coding agents in production or near-production environments
• Experience integrating GenAI into customer-facing products or internal business processes at scale
• Deep familiarity with at least two of: AdTech / paid media infrastructure, funnel optimization, payment orchestration, CRM and lifecycle communications, or pricing and incentive optimization
• Fluent in growth domain constraints: PSP behavior, consent and privacy requirements, deliverability limits, attribution windows, and incrementality measurement
• 10+ years in software engineering
• 5+ years at principal level in a high-growth, cloud-native environment
• Expert in distributed systems, microservices, and event-driven patterns (Kafka)
• Deep AWS experience
• Strong proficiency in Go, Kotlin, Python, or TypeScript
• Track record of designing and operating large-scale, multi-region systems
• Working knowledge of experimentation design and analysis
• Fluent English

Nice to have

• Experience in a multi-market subscription or e-commerce business
• German is a bonus

Benefits

• Annual learning budget
• HelloFresh Academy
• Internal mobility

About the company

HelloFresh is a company that has changed the way millions of people eat. The Growth Mega Alliance builds platforms for customer acquisition, conversion, and retention across 18 markets.