Sr. Network and Infrastructure Engineer

2 weeks ago

Scotland, United Kingdom Option One Technologies Full time

Sr Network and Infrastructure Engineer

Option One Technologies is a next-generation managed IT and cloud platform that democratizes the best-in-class technology for financial services and institutions.

Founded in 2019 by alumni from the Boston-based hedge fund Highfields Capital Management, our mission is to make innovative solutions accessible to all enterprises, whether established or emerging. We align technology with client success through robust security, efficient management, and dedicated support.


www.optiononetech.com


Job Summary:

As a senior network and Infrastructure Engineer, you will be responsible for designing, implementing, troubleshooting, and maintaining complex network and IT infrastructure solutions. This role encompasses advanced networking with a focus on enterprise-grade firewalls, cloud services management, backup and disaster recovery, IT infrastructure monitoring, and application/database management. You will serve as a technical leader, providing expertise and guidance across multiple domains of IT infrastructure.


Key Responsibilities:

Advanced Network Management:

  • Design and implement complex LAN/WAN infrastructures
  • Configure and manage enterprise-grade firewalls, with specific expertise in Cisco Meraki, Fortinet, and Palo Alto platforms
  • Implement and optimize VPN solutions for secure remote access
  • Design and manage wireless network infrastructures
  • Conduct advanced network troubleshooting and performance optimization
  • Implement and manage SD-WAN solutions
  • Perform network capacity planning and QoS configuration
  • Manage domains and DNS infrastructures

Cloud Services Management:

  • Design and implement cloud infrastructure across multiple platforms (AWS, Azure, Google Cloud)
  • Manage and optimize cloud applications (Office 365, G Suite, Salesforce)
  • Implement and manage cloud storage solutions (OneDrive, Dropbox, Google Drive)
  • Design and manage hybrid cloud environments
  • Implement cloud cost optimization strategies and resource allocation
  • Design and deploy serverless computing solutions (AWS Lambda, Azure Functions)
  • Integrate on-premises networks with cloud services securely

Backup and Disaster Recovery:

  • Design and implement comprehensive backup solutions (local, cloud-based, hybrid)
  • Develop and test disaster recovery plans
  • Implement and manage data restoration processes
  • Create and maintain business continuity plans
  • Set up and manage replication and failover solutions
  • Implement archiving and long-term data retention strategies
  • Conduct regular testing and validation of backup and recovery systems

IT Infrastructure Monitoring and Management:

  • Implement and manage enterprise-grade Remote Monitoring and Management (RMM) tools
  • Design and manage patch management processes for operating systems and applications
  • Implement advanced performance monitoring and optimization strategies
  • Manage IT asset lifecycle and implement automated asset tracking systems
  • Design and implement automated alerting and escalation procedures
  • Conduct capacity planning and forecasting for IT infrastructure
  • Implement and maintain ITIL-based service management practices

Application and Database Management:

  • Manage and optimize enterprise resource planning (ERP) systems (e.g., SAP, Oracle)
  • Implement and manage customer relationship management (CRM) software (e.g., Salesforce, Dynamics)
  • Provide high-level support for custom applications
  • Design and manage web application infrastructures
  • Perform advanced database performance tuning and optimization
  • Plan and execute complex data migration and integration projects
  • Implement and manage API integration solutions
  • Support business intelligence and analytics platforms

Automation and Scripting:

  • Develop and maintain PowerShell scripts for automation of routine tasks and complex processes
  • Create scripts for system administration, user management, and reporting
  • Implement infrastructure as code practices using tools like Ansible or Terraform
  • Automate cloud resource provisioning and management

Security Integration:

  • Collaborate with the security team to implement advanced network and infrastructure security measures
  • Ensure compliance with relevant security standards and regulations in infrastructure design and management
  • Implement and manage advanced access control systems

Documentation and Knowledge Sharing:

  • Develop and maintain comprehensive documentation for network and infrastructure designs
  • Create and update standard operating procedures for complex systems
  • Provide mentorship and technical guidance to junior engineers
  • Conduct knowledge transfer sessions on advanced topics


Required Skills and Qualifications:

  • Bachelor's degree in Computer Science, Network Engineering, or related field;
  • 8+ years of experience in IT with a focus on network and infrastructure engineering
  • Advanced certifications in networking and cloud platforms (e.g., CCIE, AWS Certified Solutions Architect Professional)
  • Expert-level knowledge of networking protocols and technologies
  • Extensive experience with enterprise-grade firewalls, specifically Cisco Meraki, Fortinet, and Palo Alto
  • Strong experience with cloud platforms (AWS, Azure, Google Cloud) and their networking components
  • Proficiency in PowerShell scripting for automation and system management
  • In-depth understanding of backup, disaster recovery, and business continuity principles
  • Expertise in IT infrastructure monitoring tools and methodologies
  • Strong knowledge of database management systems and enterprise applications
  • Excellent problem-solving and analytical skills
  • Strong communication skills with the ability to explain complex technical concepts
  • Experience in project management and leading technical initiatives

Preferred Qualifications:

  • Additional certifications from Cisco, Fortinet, or Palo Alto
  • Experience with software-defined networking (SDN) and intent-based networking
  • Knowledge of containerization and orchestration technologies (e.g., Docker, Kubernetes)
  • Familiarity with AI and machine learning applications in IT infrastructure
  • Experience in a managed services or IT consulting environment
  • Proficiency in additional scripting languages (e.g., Python, Bash)


This role requires a highly skilled IT professional with deep expertise across multiple domains of network and infrastructure engineering, with a particular focus on advanced firewall management, cloud services, and automation through scripting. The ideal candidate will have a proven track record of designing and implementing complex IT solutions, a strategic mindset for long-term planning, and the ability to lead and mentor technical teams.

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