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Tesco

Systems Engineer III

Location:  Welwyn Garden City, UK
Location flexibility:  2 office days / week
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Job Description

As a Systems Engineer within Network Services, you will be responsible for developing and enhancing the tooling, automation and compliance capabilities that underpin Tesco's global network estate.

The role focuses on improving observability, operational efficiency and governance of network infrastructure through the deployment and continuous improvement of monitoring platforms, automation solutions and compliance tooling. Working closely with network engineering, security and operations teams, you will identify opportunities to automate manual processes, provide meaningful operational insights and ensure network configurations remain compliant with internal standards and industry-recognised best practices.

This role is ideal for an engineer who enjoys combining infrastructure knowledge with software development, automation and data-driven operational improvements.

Monitoring, Tooling & Observability

  • Own and enhance network monitoring and observability platforms.
  • Configure, maintain and optimise tooling used to monitor network health, performance and service availability.
  • Develop dashboards, reporting solutions and operational metrics that provide actionable insights.
  • Identify monitoring gaps and implement improvements to increase visibility across the network estate.
  • Partner with engineering teams to improve service reliability through proactive monitoring.

Automation & Engineering

  • Design, develop and support automation solutions that improve operational efficiency and reduce manual effort.
  • Develop scripts and applications using Python and related technologies.
  • Use Visual Studio Code and modern development methodologies to build and maintain engineering solutions.
  • Integrate platforms through APIs and automation frameworks.
  • Explore and utilise AI-assisted engineering capabilities to improve productivity, reporting and operational insight.
  • Create self-service and automated reporting capabilities for engineering and operational teams.

Network Compliance & Governance

  • Operate and improve tooling used to assess network configuration compliance.
  • Monitor network devices and services against internal standards and industry-recognised security benchmarks.
  • Develop automated compliance reporting and compliance validation capabilities.
  • Investigate configuration drift and support remediation activities.
  • Support audit and governance activities through accurate reporting and evidence collection.

Continuous Improvement & Operational Efficiency

  • Drive initiatives that improve service reliability, operational efficiency and customer experience.
  • Identify opportunities to remove manual activities through automation and tooling enhancements.
  • Introduce new technologies and engineering approaches where they provide measurable business value.
  • Contribute to product roadmaps and tooling strategies.
  • Work collaboratively with suppliers and internal stakeholders to improve services and outcomes.

Responsibilities

Monitoring, Tooling & Observability

  • Own and enhance network monitoring and observability platforms.
  • Configure, maintain and optimise tooling used to monitor network health, performance and service availability.
  • Develop dashboards, reporting solutions and operational metrics that provide actionable insights.
  • Identify monitoring gaps and implement improvements to increase visibility across the network estate.
  • Partner with engineering teams to improve service reliability through proactive monitoring.

Automation & Engineering

  • Design, develop and support automation solutions that improve operational efficiency and reduce manual effort.
  • Develop scripts and applications using Python and related technologies.
  • Use Visual Studio Code and modern development methodologies to build and maintain engineering solutions.
  • Integrate platforms through APIs and automation frameworks.
  • Explore and utilise AI-assisted engineering capabilities to improve productivity, reporting and operational insight.
  • Create self-service and automated reporting capabilities for engineering and operational teams.

Network Compliance & Governance

  • Operate and improve tooling used to assess network configuration compliance.
  • Monitor network devices and services against internal standards and industry-recognised security benchmarks.
  • Develop automated compliance reporting and compliance validation capabilities.
  • Investigate configuration drift and support remediation activities.
  • Support audit and governance activities through accurate reporting and evidence collection.

Continuous Improvement & Operational Efficiency

  • Drive initiatives that improve service reliability, operational efficiency and customer experience.
  • Identify opportunities to remove manual activities through automation and tooling enhancements.
  • Introduce new technologies and engineering approaches where they provide measurable business value.
  • Contribute to product roadmaps and tooling strategies.
  • Work collaboratively with suppliers and internal stakeholders to improve services and outcomes.

Skills / Experience Required

Monitoring & Tooling

  • Experience deploying, managing and enhancing enterprise monitoring platforms.
  • Experience with platforms such as:
    • IP Fabric / SolarWinds / LogicMonitor
    • Or similar observability and monitoring technologies
  • Experience creating meaningful dashboards, reporting and alerting solutions.

Automation & Development

  • Strong scripting and automation experience.
  • Practical Python development skills.
  • Experience using Visual Studio Code or similar development environments.
  • Experience integrating systems using APIs.
  • Experience improving operational processes through automation.
  • Knowledge of version control and software development best practices.
  • Experience leveraging AI tooling to accelerate engineering activities and improve operational outcomes.
  • Experience with GIT and secure credential storage applications

Network Compliance

  • Experience operating network compliance or governance platforms.
  • Understanding of configuration compliance and security best practices.
  • Experience with tools such as:
    • Skybox / AlgoSec / Tufin or similar
  • Experience identifying and managing configuration drift or policy violations.

Desirable

  • Experience with DDI platforms, particularly BlueCat.
  • Understanding of DNS, DHCP and IP Address Management.
  • Experience working within large-scale enterprise networks.

Network Infrastructure Knowledge

A working understanding of:

  • Routing and switching technologies
  • OSPF, BGP and related routing protocols
  • Router and switch configuration
  • Firewall technologies
  • Load balancers
  • Proxy solutions
  • Remote access technologies

Whilst not the primary focus of the role, this knowledge will enable effective troubleshooting, automation and compliance management across the network estate.

Aligned to the Tesco Systems Engineering framework, successful candidates will demonstrate the ability to:

  • Design and implement automation solutions that minimise errors and improve efficiency across multiple domains.
  • Write and maintain custom scripts that reduce manual intervention and improve operational effectiveness.
  • Identify and implement improvements that drive operational efficiency and service stability.
  • Proactively manage and monitor systems and infrastructure platforms.
  • Evaluate emerging technologies and recommend improvements that support Tesco's engineering strategy.
  • Deliver high-quality engineering solutions whilst collaborating effectively across multiple technical teams.


You might know us as a supermarket, technology company or even for our award-winning mobile network. Truth is, we’re all of those things, and much more. Our colleagues work with one goal in mind, helping to make every day a little better for our customers, colleagues and communities all over the world. No two customers are the same, neither are our colleagues. At Tesco, we champion a balance that lets you thrive both in and out of work. Spend 60% of your week collaborating with colleagues at our office locations or local sites and the rest remotely. Whether you're just kicking off your career, juggling passions, or navigating big life events, we're here to support you. We always welcome a conversation about flexible working, so talk to us throughout your application about how we can support. We're proud to be an accredited Disability Confident Leader, where everyone’s welcome. That’s why we commit to providing a fully inclusive and accessible recruitment process. If you need support with your application, click here for more information. And if you're interested in joining our team but don't tick every box, don't let that hold you back from applying. When you join us in this role, you'll be employed by Tesco Stores Limited, the Tesco legal entity responsible for your employment.

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Working at Tesco

Hybrid

A little flex time

Company benefits

25 days annual leave + bank holidays
Additional voluntary pension contribution
Adoption leave – 26 weeks full pay (after 52 weeks service)
Annual bonus
Annual pay rises
Bike parking
Buy or sell annual leave
Car allowance
Charity donation scheme
Chill out zone
Cinema discounts
Coffee discounts
Collaboration spaces
Company car
Company freebies
Compassionate leave
Critical Illness Insurance
Cycle to work scheme
Death in service
Dental coverage
Discretionary sick pay
Electric Car Salary Sacrifice
Emergency leave
Employee assistance programme
Employee discounts – 10% off and 15% on pay day weekends
Employee phone programme
Enhanced maternity leave – 26 weeks full pay (after 52 weeks service)
Enhanced paternity leave – 6 weeks full pay (after 52 weeks service)
Enhanced pension match/contribution – up to 7.5% matching
Equity packages
Ergonomic workstations
Eye Care Support
Faith rooms
Family health insurance
Fertility treatment leave
Financial advice
Fully stocked snack cupboard
Gym membership
Health assessment
Health insurance
In house training
L&D budget
Learning license
Learning platform
Legal consults
Life assurance – Five times your pay
Life insurance
Lunch and learns
Meditation space
Menopause support
Mental health first aiders
Mental health platform access
Mentoring
Modern office
On-site barista
On-site catering
On-site gym
On-site personal trainer
On-site shower
On-site wellness room
On-site wellness services
On-site workout classes
Open to compressed hours
Open to job sharing
Open to part time work for some roles
Open to part-time employees
Optional unpaid leave
Paid fostering leave
Personal development budgets
Personal development days
Pregnancy loss leave
Private booths
Referral bonus
Religious celebration leave
Relocation packages
Restaurant discounts
Sabbaticals
Salary advance
Salary sacrifice
Secure on-site parking
Sensory-Friendly Setup
Share options
Skilled worker visas
Sports teams
Study support
Teambuilding days
Theme park discounts
Time off in-lieu
Tree planting
Volunteer days
Wellbeing incentive programme
Reservist leave
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