Principal Cloud Engineer

Job Overview

Principal Cloud Engineer (AWS) - (Multiple)
📍 Central London (Hybrid – 3 days onsite)
💰 £95,000 – £130,000 + bonus + great benefits

Defence/SC Clearance Requirements:
SC clearance is required for our customer facing teams. You do not need active SC clearance as we will undertake checks upon you joining, but you must be eligible to pass SC clearance. DV clearance may be required for certain roles, so the ability/willingness to pass DV clearance is advantageous but not essential.

Who are we

We are AWS experts helping major public and private sector organisations unlock the power of their platform. From landing zones to cloud operations and risk mitigation, we're at the forefront of cloud transformation, and we're looking for a Principal Cloud Engineer (AWS) to join our team.

What you’ll do

• Design & build enterprise-scale AWS landing zones


• Automate complex AWS platforms with Terraform


• Package services into AMIs, Docker, or Serverless


• Define and lead technical strategy with a strong view on IaC modularisation


• Work directly with customers, driving cloud transformations


• Apply site reliability best practices and help shape mature security models

What we’re looking for

• Deep AWS expertise, especially landing zones


• Strong hands-on Terraform and automation skills


• Clear opinions on IaC structure and cloud architecture


• Experience working in enterprise-scale AWS environments


• Proven experience leading cross-functional teams and mentoring engineers


• Strong hands-on AWS knowledge, with the ability to choose the right service for the job


• Deep expertise in landing zones, multi-account, and multi-tenant AWS setups


• Experience operating cloud platforms at scale, ideally in regulated environments


• Solid grasp of secure, scalable, and resilient AWS architecture


• Strong understanding of AWS security risks and how to prevent, detect, and remediate them


• Proficient in Infrastructure as Code (IaC) using Terraform (or CloudFormation)


• Confident advising on IaC structure and modularisation


• Awareness of SRE principles and operational priorities


• Experience with CI/CD pipelines


• Strong system design skills

Why join us?

Industry-leading AWS expert team – As an AWS Advanced & Well Architected Partner, we build secure, scalable cloud platforms for major enterprises

People-first, inclusive culture – We thrive on trust, openness, and collaboration, with regular socials, quarterly company days and town halls plus, a committed signatory to the Tech Talent Charter

Tailored career growth – Enjoy individual development plans, sponsored training and AWS certifications, transparent promotion tracks and 5 training days per year

Comprehensive, flexible benefits – Bonus, 25 days annual leave + 5 days training or voluntary leave days, private GP, life/disability cover, Cycle to Work, bike storage, dog friendly offices, and remote/hybrid working

High-impact projects & expert community – Operate at the cutting-edge designing cloud solutions in regulated industries, working with CXOs, and shaping the future of cloud, supported by a network of bright, passionate AWS professionals

Additional Perks

Discretionary bonus
Discretionary security clearance bonus for those holding certain clearance
Periodic offer of share options schemes
25 days’ annual leave
5 additional days per year towards training, certifications, or charity work
Option to buy additional annual leave up to 5 days per year
Public holidays opt-out scheme, the option to work on public holidays creating the flexibility to enjoy your time off when it suits you
Certifications and training expensed
Life Assurance
Long Term Disability cover
Employee Assist Programme for employee advice and support (including legal and counselling helpline)
Health, Mental Health, Wellbeing, Financial and Legal support
24/7 GP access
Pension auto-enrolment and contribution
Employee referral scheme
Client referral scheme
Cycle to work scheme
Travel expenses policy

Interview Process

1. Chat with Talent Team
2. Remote interview with Hiring Manager
3. Technical interview (remote)
4. Final in-person with Leadership Team

Cloudscaler are proud to be an equal opportunity employer, committed to equal opportunities regardless of gender identity, sexual orientation, race, ancestry, age, marital status, disability, parental status, religion or medical history.

If you require reasonable adjustments during the recruitment process or within the workplace, please let us know when you speak to our Talent Acquisition team or contact [email protected] at the earliest opportunity.