Senior Azure Engineer

Colossus Recruitment Ltd; Birmingham; Hybrid; GBP 70,000 - 100,000; Full time

Benefits offered by this job

Hybrid work model

Private medical cover

Enhanced pension options

Life assurance

Additional holiday purchase scheme

Job summary

Colossus Recruitment Ltd is seeking a Senior Infrastructure Engineer to design, automate and deploy scalable Azure cloud infrastructure supporting high-volume SaaS platforms. You will work across AKS, Terraform, Docker, and related tools, delivering robust CI/CD pipelines and on-call support.

The role emphasizes project delivery, mentoring and shaping engineering standards within a modern cloud environment, with hybrid/remote UK work options and competitive benefits.

Qualifications

• Strong enterprise Azure cloud infrastructure design and support experience.
• Hands-on experience with AKS and Azure cloud services.
• Proficient in DevOps practices, CI/CD pipelines and IaC.
• Experience documenting technical solutions and guiding teams.

Responsibilities

• Design, build and deploy cloud infrastructure using Infrastructure as Code.
• Develop and maintain automated deployment pipelines for infrastructure and applications.
• Deploy new platforms, services and environments while aligning with standards.
• Provide 4th-line support and participate in on-call rotations.
• Mentor Infrastructure Engineering team and promote engineering best practices.

Skills

Cloud architecture design

Mentoring/leadership

Stakeholder communication

Project delivery

Tools

Azure Kubernetes Service (AKS)

Azure services (App Gateway, API Management, Service Bus, SQL, PostgreSQL)

Azure DevOps

Terraform

Docker

Helm

Packer

Ansible

Bash scripting

Job description

Senior Infrastructure Engineer (Azure DevOps & Cloud Platform , Terraforms , Docker MSSQL PostgreSQL) UK Remote

Build the Infrastructure Behind Critical SaaS Platforms

We are working with a leading technology organisation delivering large-scale, business-critical SaaS solutions to customers across the UK and internationally.

As part of continued growth, they are seeking a Senior Infrastructure Engineer to join a project-focused engineering team responsible for designing, automating and deploying highly available cloud infrastructure and application delivery pipelines.

This is an excellent opportunity for an experienced Azure Infrastructure Engineer, Platform Engineer or DevOps Engineer looking to work with modern cloud technologies, Infrastructure as Code and Kubernetes at scale.

You'll play a key role in delivering complex projects, mentoring colleagues and helping shape engineering best practices across a sophisticated cloud environment.

The Opportunity

Working alongside architects, developers and fellow infrastructure engineers, you will be responsible for building and maintaining cloud infrastructure that supports high-volume, customer-facing SaaS applications.

You'll contribute throughout the project lifecycle, ensuring infrastructure is delivered using modern automation practices and aligned to established architectural standards.

This role offers a strong blend of project delivery, infrastructure engineering, automation, mentoring and operational support.

Key Responsibilities

Infrastructure & Cloud Engineering

• Design, build and deploy cloud infrastructure using Infrastructure as Code.
• Develop and maintain automated deployment pipelines for infrastructure and applications.
• Deploy new platforms, services and environments.
• Ensure infrastructure aligns with architectural standards and engineering best practices.
• Support project delivery through high-quality, scalable and resilient infrastructure solutions.
• Continuously improve deployment processes and engineering efficiency.

DevOps & Automation

• Build and optimise CI/CD pipelines.
• Automate infrastructure provisioning and configuration management.
• Drive standardisation and repeatability across deployment processes.
• Support cloud-native applications and containerised workloads.

Operational Support

• Provide 4th-line technical support and infrastructure escalation when required.
• Participate in an on-call rota supporting critical systems and services.
• Troubleshoot complex infrastructure, networking and platform issues.
• Produce and maintain high-quality technical documentation.

Team Collaboration & Mentoring

• Mentor and support other members of the Infrastructure Engineering team.
• Share best practices and promote engineering excellence.
• Collaborate with architects, developers and project teams to deliver successful outcomes.
• Contribute to continuous improvement initiatives across the wider technology function.

Technical Environment

You will work extensively across the Microsoft Azure ecosystem, including:

• Azure Kubernetes Service (AKS)
• Azure Application Gateway
• Azure API Management (APIM)
• Azure Service Bus
• Azure SQL Server
• Azure PostgreSQL
• Azure Monitoring and Diagnostic Services

You will also have significant exposure to:

• Azure DevOps
• Terraform
• Docker
• Helm Charts
• Packer
• Ansible
• Bash Scripting
• Infrastructure as Code
• CI/CD Pipelines
• Cloud Security & Compliance

About You

Essential Experience

• Strong experience designing and supporting enterprise cloud infrastructure in Azure.
• Hands-on experience with Azure Kubernetes Service (AKS).
• Strong DevOps and Infrastructure as Code expertise.
• Experience building and maintaining CI/CD pipelines.
• Strong understanding of networking, security, identity and access management principles.
• Experience working with database and messaging technologies in cloud environments.
• Knowledge of containerisation technologies including Docker and Kubernetes.
• Strong troubleshooting and diagnostic skills.
• Experience producing technical documentation to a high standard.
• Excellent communication and stakeholder management skills.
• Ability to prioritise effectively and manage multiple project deliverables.

Desirable Skills

• Experience within complex SaaS environments.
• Exposure to large-scale cloud transformation programmes.
• Experience supporting highly available and business-critical platforms.
• Previous mentoring or technical leadership experience.
• Knowledge of security, monitoring and compliance frameworks.

What's in It for You?

• Opportunity to work with modern cloud-native technologies.
• Complex and technically challenging Azure environment.
• Significant involvement in strategic projects.
• Hybrid and flexible working arrangements.
• Competitive salary and comprehensive benefits package.
• Private medical cover.
• Enhanced pension options.
• Life assurance.
• Additional holiday purchase scheme.
• Excellent opportunities for learning, certification and career progression.