Global Changer is hiring an Engineering Manager to lead our Corporate Carbon Footprint (CCF) squad. In this player-coach role, you'll build and evolve auditable carbon calculation systems for Scope 3 emissions. You'll modernize our Ruby on Rails monolith toward a Go-based, service-oriented architecture while designing data pipelines and AI-assisted workflows.

What You'll Do

Lead by example and stay close to the code in our most complex areas.
Build and evolve CCF and emission reduction features with a strong focus on correctness, auditability, and performance.
Work on data-intensive systems: ETL pipelines, transactional to analytical data flows, and real-time carbon analytics.
Design and operate AI-assisted workflows, including self-hosted LLMs, to process supplier and emissions data efficiently.
Review code across Go, Ruby on Rails, and Vue.js, keeping systems stable as complexity grows.
Grow and enable a small, senior team, currently ~3 scaling to 6+ engineers.
Hire engineers with strong technical fundamentals and a product mindset.
Coach the team through architectural change from monolith to services and data-first thinking.
Foster ownership, pragmatism, and a culture focused on solving customer problems.
Partner closely with Product and the CTO to align product goals and technical decisions.
Decide what stays in the monolith and what moves into dedicated services.
Shape our data and AI architecture, balancing deterministic logic with LLM-based approaches.

What We're Looking For

8+ years in software engineering.
2+ years in a leadership or management role.
Proven player-coach experience: staying hands-on while leading a senior team.
Experience evolving large systems, such as monolith to services, without breaking production.
Strong background in data-heavy systems (ETL/ELT, OLTP to OLAP, analytics workloads) and expertise with Big Data.
Practical experience designing and operating AI or LLM-based systems in production.
Based in CET ±1 hour for sufficient team overlap.
Valid EU/EEA work authorization.
Strong Ruby on Rails experience and solid proficiency in Go.
Good understanding of PostgreSQL performance and data modeling.
Experience with modern frontend frameworks such as Vue.js 3.
Solid foundation with containerized infrastructure (Docker/Kubernetes).
Experience building software with high correctness and auditability requirements, such as in climate tech, fintech, or ERP.
Proven ability to hire, mentor, and grow senior engineers in an ego-less manner.
Great reflection skills.
Comfortable working in a fully remote, asynchronous-first environment.
Clear, structured communication in English.

Technical Stack

Ruby on Rails
Go
PostgreSQL
Vue.js 3
Docker
Kubernetes

Team & Environment

You will lead the Corporate Carbon Footprint (CCF) Squad, directly reporting to the CTO. The team is currently approximately 3 engineers and will scale to 6+. You will be our first Engineering Manager, actively shaping team culture, processes, and architecture.