Principal Engineer Azure & IaC (Terraform, Pulumi)
~Excellent Company Benefits (including paid technical training).
~ Hybrid or Fully Remote Option Offices in England, Scotland & USA.
~ On-Call Rota 1 week in 3 months.
~ Paid travel to HQ for Product & Engineering meetups (1-2 times per month).
Areti are delighted to be partnering with one of the UKs fastest-growing SaaS businesses in the search for a Principal Engineer with Infrastructure-as-Code experience (Terraform, Pulumi).
With a major multi-million-pound technology investment planned for the year ahead, this is a rare opportunity to play a pivotal leadership role in shaping a modern, greenfield-style environment that underpins their continued success.
As a Principal Engineer, youll take a hands-on and strategic role within the engineering organisation, driving reliability, scalability, and performance across mission-critical systems.
Youll guide and mentor platform, SRE, and DevOps teams, ensuring operational excellence and robust automation practices throughout the organisation.
A central focus of this position will be Infrastructure-as-Code (IaC), building and scaling frameworks that support secure, automated, and repeatable environments. The development team primarily codes in Python, so an understanding of Python-based tooling and Pulumi would be particularly advantageous in helping to bridge development and operations effectively.
Lead the design, implementation, and optimisation of IaC solutions ( Terraform / Pulumi ).
Drive the reliability, performance, and scalability of production systems.
Collaborate with Product, Engineering, and Platform teams to deliver resilient cloud infrastructure.
Mentor and develop engineers across SRE, Platform, and DevOps disciplines.
Play a key role in scaling engineering operations and evolving internal toolsets.
Proven experience in Site Reliability Engineering or Principal DevOps roles.
Proficiency in Python or familiarity with Python-based DevOps tooling and automation frameworks.
Deep understanding of cloud infrastructure (AWS, Azure, or GCP) and cloud-native architectures.
Passion for automation, observability, and driving engineering excellence across teams.
Skilled in writing clear, maintainable technical documentation to standardize practices and improve knowledge sharing.
Experienced in designing and delivering internal training sessions, workshops, or onboarding programs to upskill engineering teams.
This is more than just another SRE or DevOps role its a chance to define frameworks, tooling, and culture at scale. With the backing of significant investment, youll have the freedom to introduce new approaches, influence architecture, and help build a modern engineering environment that supports long-term growth and resilience.
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