Principal Software Engineer

Nicoll Curtin; Greater London; Hybrid; GBP 110,000 - 150,000; Full time

Job summary

Leading Consumer Technology Organisation in London is seeking a Principal Engineer to shape engineering strategy and lead the development of highly scalable cloud platforms used by millions of customers.

This senior role focuses on architecture, platform modernisation, AI adoption, and mentoring engineering teams within a hybrid London setting.

Qualifications

• Senior/lead engineer with architecture experience.
• Experience delivering cloud-native platforms at scale.
• Mentoring engineering teams and driving modern practices.

Responsibilities

• Define engineering standards, best practices, and technical strategy.
• Lead the design and delivery of cloud-native, distributed systems.
• Provide technical leadership to engineering teams and senior stakeholders.
• Drive adoption of modern engineering practices, AI, and automation.
• Champion secure-by-design principles and engineering governance.
• Improve delivery through CI/CD, infrastructure automation, and platform engineering.
• Implement observability, monitoring, logging, and reliability frameworks.

Skills

C#

ASP.NET Core

Web API

Entity Framework

Microservices

Tools

Azure

Kubernetes

Kafka

MongoDB

Terraform

Job description

Leading Consumer Technology Organisation

London

Hybrid

One of our clients, a large-scale consumer technology business, is looking for a Principal Engineer to help shape engineering strategy and lead the development of highly scalable cloud platforms used by millions of customers.

This is a senior technical leadership role focused on architecture, engineering excellence, platform modernisation, AI adoption, and mentoring engineering teams.

Responsibilities

• Define engineering standards, best practices, and technical strategy
• Lead the design and delivery of cloud-native, distributed systems
• Provide technical leadership to engineering teams and senior stakeholders
• Drive adoption of modern engineering practices, AI, and automation
• Champion secure-by-design principles and engineering governance
• Improve delivery through CI/CD, infrastructure automation, and platform engineering
• Implement observability, monitoring, logging, and reliability frameworks

Key Skills

• Strong experience with C#, ASP.NET Core, Web API, Entity Framework, and Microservices
• Deep knowledge of Azure, Kubernetes, Kafka, MongoDB, and Terraform
• Experience building scalable, high-availability distributed systems
• Strong understanding of software architecture and cloud-native engineering
• Experience with DevOps, CI/CD pipelines, and automation
• Knowledge of observability, monitoring, and site reliability practices
• Practical experience using AI and Generative AI tools within engineering environments

Experience

• Principal Engineer, Staff Engineer, Lead Engineer, or Architect background
• Proven experience defining engineering strategy within large-scale environments
• Experience delivering cloud transformation or platform modernisation initiatives