UK

United Kingdom · Technology and data · Mid-Level (2-5 years)

Network Optimisation Specialist

Here is the whole job, in plain words. What it is, what you decide, how you're judged, how people get here and where they go next. Then the part no course gives you: twelve AI tutors who learn your work.

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One email: what AI is changing in this job, and where to start free. With a link back here. Nothing else follows unless you confirm your address.

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  • Experience bandMid-Level (2-5 years)
  • Direct reportsNo direct reports
  • Reports toSenior Network Optimisation Specialist
  • UK framework levelUsually a coordinator, or early in a professional job

Also advertised as Mid-Level Network Engineer · Network Performance Analyst · Network Support Engineer (L2) · Technical Network Specialist

Built on 43,079 real UK job descriptions we analysed · grounded in qualifications employers recognise

Two short quizzes about you

1From this job to a course

The qualifications matched to this job

Pearson BTEC Level 4 Diploma in Professional Competence for IT and Telecoms Professionals Pearson Education Ltd · Level 4 · covers 2 of 10 standards
Pearson BTEC Level 3 Diploma in Professional Competence for IT and Telecoms Professionals Pearson Education Ltd · Level 3 · covers 2 of 10 standards
City & Guilds Level 4 Diploma For ICT Professionals (Systems and Principles) City & Guilds Limited · Level 4 · covers 1 of 10 standards
Pearson BTEC Level 2 Diploma in Professional Competence for IT and Telecoms Professionals Pearson Education Ltd · Level 2 · covers 2 of 10 standards
Pearson BTEC Level 3 Diploma in ICT Systems and Principles Pearson Education Ltd · Level 3 · covers 2 of 10 standards
Pearson BTEC Level 3 Certificate in ICT Systems and Principles Pearson Education Ltd · Level 3 · covers 1 of 10 standards

Matched from the standards this job is measured against: a suggestion, not an official ruling.

The units you would start with

Cisco CCNP Troubleshooting Pearson BTEC Level 4 Diploma in Professional Competence for IT and Telecoms Professionals
Networking Infrastructure City & Guilds Level 4 Diploma For ICT Professionals (Systems and Principles)
Managing Networks Pearson BTEC Level 3 Diploma in ICT Systems and Principles

The future skills this job leans on

AI Fluency working with AI as a thinking partner
Data Fluency turning numbers into a decision
Automation Fluency building AI into how work runs
Systems Fluency seeing the whole picture
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Your Plan Illustration

Built for Network Optimisation Specialist

3 units that map to this job, from the qualifications that cover it.

  1. Cisco CCNP Troubleshooting Pearson Education Ltd · covers 2 of 10 standards Level 4
  2. Networking Infrastructure City & Guilds Limited · covers 1 of 10 standards Level 4
  3. Managing Networks Pearson Education Ltd · covers 2 of 10 standards Level 3
These are the real units behind this job, in the order they rank for it. Nothing here is marked done, because this plan has not been started by anyone yet. Yours would fill in as you go.

2AI and this work

Will AI change your work as a Network Optimisation Specialist?

Nobody can say exactly how. Here is what this job is being asked for next, and where to start.

The new skills this role is being asked for

  • Network Observability & AIOps Principles
  • Basic Cloud FinOps for Networking
Why each one is rising

The future skills this job leans on

We'll only ever tell you what we can actually back up. No hype, no scare tactics.

What happens when you start

Next, a free account. We build your Network Optimisation Specialist plan as you set up, starting with a Future Fluency module on using AI in your job. No card.

Your first Future Fluency module is free. After that, your AI tutor is £70 a month.

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3What this role really is

A Network Optimisation Specialist studies network traffic to find why systems slow down or fail, then works out how to fix it.

4What you'd actually use

The tools this job runs on, and how well you'd need to know each one.

SolarWinds NPM / PRTG Intermediate

Monitoring device health, setting up and responding to alerts, using pre-built dashboards to identify high-utilisation links and perform initial troubleshooting.

Wireshark Intermediate

Capturing and analysing network packets, applying advanced display filters (e.g., by IP, port, protocol), identifying common issues like TCP retransmissions or high latency in packet captures.

Ansible Basic

Executing pre-written playbooks to push standardised configuration changes (e.g., updating VLANs, ACLs) to multiple network devices, or gathering diagnostic information.

Splunk / ELK Stack (Kibana) Intermediate

Running complex searches and building custom dashboards to correlate events across multiple network devices, identifying patterns related to incidents or performance degradation.

GNS3 / EVE-NG Basic

Building small-scale lab topologies to test basic configuration changes or replicate simple production issues in a safe environment before deploying them live.

5What you get to decide, and how that grows

Power in a job isn't your title. It's what you're allowed to decide. Here's how it grows as you move up.

The choiceComing in Where you are nowThe step above
Troubleshooting Approach for P3/P4 Incident Follows pre-defined runbooks; escalates if runbook fails or issue is novel. All steps reviewed. Chooses appropriate diagnostic tools and methods independently; consults senior on complex issues or potential service impact. Proposes and executes fixes within guidelines. Defines troubleshooting strategy for major incidents; leads diagnosis across multiple teams; authorises complex configuration changes.
Network Configuration Changes (Minor) Executes pre-approved, templated changes under direct supervision. Proposes and implements minor configuration optimisations (e.g., QoS adjustments, routing metric tweaks) after peer review and change control approval. Designs and implements complex configuration changes for new features or major optimisations; reviews and approves junior/mid-level changes.
Tool Selection for Analysis Uses tools specified by senior team (e.g., SolarWinds, basic Wireshark). Independently selects and uses appropriate tools (e.g., expert Wireshark, Splunk queries, Python scripts) for specific analysis tasks. May propose new tools for evaluation. Evaluates and recommends new network analysis platforms; defines best practices for tool usage across the team.
Informal Mentorship/Guidance Seeks guidance from senior team members. Provides informal guidance and support to Associate Network Analysts, answering questions and helping unblock tasks. Formally mentors 1-2 junior engineers; leads training sessions and develops career plans.

6How you'll be judged

The scoreboard, and what is not on it. The hard targets, how often each is actually looked at, and the quiet signals that never reach a dashboard.

Mean Time to Resolution (MTTR) for P3/P4 Incidents
How long it takes you to resolve medium-to-low priority network performance incidents from initial report to full resolution.
Target · < 4 hours (average)

Diagnosing and fixing a DNS resolution delay affecting a non-critical internal application within 3 hours, bringing the service back to normal.

Network Change Documentation Accuracy
The percentage of your implemented network configuration changes that are fully and accurately documented in our change management system.
Target · 99.5% accuracy

After implementing a new QoS policy, all relevant device configurations, policy descriptions, and verification steps are recorded correctly in the change log, with no omissions or errors.

Proactive Alert Identification
The number of potential network issues you identify through monitoring tools and address *before* they become user-impacting incidents.
Target · 2+ incidents per month

Spotting a consistent increase in router CPU utilisation on a specific device and proactively investigating, finding a misconfigured routing process, and fixing it before it caused an outage.

Network Utilisation Optimisation
The percentage reduction in peak bandwidth utilisation on specific links or devices that you've identified as underperforming or over-utilised, without impacting service quality.
Target · 5-10% reduction on targeted links

Reconfiguring a routing policy to shift 8% of non-critical traffic off a congested WAN link during peak hours, improving performance for critical applications.

Troubleshooting Efficacy
Your ability to methodically diagnose complex network problems, using appropriate tools and a structured approach, leading to correct root cause identification.
  • Consistently follows the OSI model for diagnosis. Rarely escalates issues without clear evidence or a defined next step. Post-incident reviews show clear, logical steps to resolution. Senior team members trust your initial diagnosis.
Collaboration & Communication During Incidents
How well you communicate technical details to both technical and non-technical colleagues during an incident, keeping everyone informed and working together.
  • Provides clear, concise updates in incident channels. Explains technical jargon simply when talking to non-network teams. Proactively reaches out to affected teams. Receives positive feedback from application support or service desk colleagues during incident post-mortems.
Contribution to Knowledge Base
Your efforts in creating or updating documentation, runbooks, and troubleshooting guides that help the wider team and improve future incident resolution.
  • Submits new articles or significant updates to our internal wiki/knowledge base. Creates clear, reproducible steps for common issues. Other team members refer to your documentation. Helps onboard new colleagues using your materials.
Proactive Improvement Suggestions
Your initiative in identifying areas for network improvement (e.g., monitoring gaps, automation opportunities, configuration standardisation) and proposing practical solutions.
  • Regularly brings forward ideas in team meetings. Submits well-reasoned proposals for minor network changes or tool improvements. Identifies and flags potential future bottlenecks based on trend analysis.

7Would you like it

Both sides. What people enjoy, and what grinds them down.

What people enjoy
Solving Complex Puzzles

You'll get a real kick out of diving into a tricky network performance issue, sifting through logs and packet captures, and finally identifying that obscure misconfiguration that was causing all the trouble. It's like being a detective every day.

Spending a morning methodically tracing a latency spike to a specific, overloaded switch port, then proposing and implementing a traffic re-distribution plan that fixes it.

Making a Tangible Impact

Your work directly improves how fast and reliable our services are. You'll see the immediate results of your optimisations and fixes, knowing you've made things better for real users.

After implementing a new QoS policy, observing a significant reduction in jitter for VoIP calls, leading to positive feedback from users.

Continuous Learning & Mastery

The network world never stands still. You'll be constantly learning new protocols, tools, and cloud networking paradigms. If you love staying ahead of the curve and deepening your technical knowledge, you'll thrive.

Taking the initiative to learn the specifics of a new SD-WAN feature and then applying it to improve application routing efficiency.

What frustrates people
  • "It's always the network's fault": Being the first point of blame for any performance issue, even when the root cause is clearly an application bug or an overloaded database. You'll spend a lot of time collecting evidence to clear the network's name.
  • Vendor Finger-Pointing: Getting caught in the middle when our hardware vendor blames the ISP, who blames the cloud provider, and so on. It's an endless cycle that delays fixes.
  • Change Management Paralysis: Knowing a quick config tweak would fix a major issue, but having to wait days or weeks for the Change Advisory Board (CAB) to approve it. It's frustrating when you see a simple solution but can't act on it immediately.
  • Undocumented Changes: An application team makes a server change without telling anyone, breaking network connectivity, and you're left troubleshooting a problem you didn't create. It's like finding a needle in a haystack you didn't even know existed.
  • Legacy Debt: Being asked to deliver cutting-edge performance on 10-year-old hardware that simply isn't up to the task. It's like trying to win a Formula 1 race in a family saloon.
What this role does not give you
  • A completely predictable 9-to-5 schedule: Incidents don't care about your plans. Expect occasional out-of-hours work for critical issues or planned changes.
  • A quiet, isolated work environment: You'll be collaborating constantly, often under pressure, with various teams.
  • Immediate gratification on every project: Some optimisations take weeks or months to show their full impact, and some proposed changes might get deprioritised or never implemented.

8Who you work with

This role directly impacts our service uptime and performance. Your work means our internal teams can do their jobs without network slowdowns, and our customers get a smooth, fast experience. Get it wrong, and you're looking at frustrated users and potentially lost revenue. Get it right, and you're a silent hero keeping the business ticking.

Inside the business
  • Senior Network Optimisation Specialists (for guidance)
  • Network Operations Centre (NOC) team (for incident handover)
  • Application Support team (for troubleshooting app performance issues)
  • Infrastructure Engineers (for hardware/software changes)
  • Cyber Security team (for traffic analysis and threat detection)
Outside the business
  • Internet Service Providers (ISPs) (for connectivity issues)
  • Network hardware/software vendors (for support cases)
  • Cloud platform support (AWS, Azure, GCP) (for cloud connectivity)

9What you need before you start

Not a wish list. The things you would be expected to already have.

  • Proven ability to troubleshoot network connectivity and performance issues (Layer 1-4) in a production environment for at least 2 years.
  • Demonstrable experience with at least two major network vendors (e.g., Cisco, Juniper, Arista) and their command-line interfaces.
  • Experience configuring and optimising dynamic routing protocols (OSPF, EIGRP, or BGP) in a mid-sized network.
  • A solid understanding of network monitoring tools and their application for proactive problem identification.
  • Experience with packet capture and analysis for diagnosing complex network problems.

10What to practise next

Where the job is going, and what to do about it starting this week.

Advanced Network Automation (Python & APIs)

Manual configuration is slow, error-prone, and doesn't scale. Automating network tasks using programming languages and APIs is essential for agility, consistency, and reducing operational overhead. It's the only way to manage increasingly complex networks efficiently.

RESTful APIs for Network Devices · Python Libraries (Netmiko, NAPALM, Nornir) · Version Control (Git) · Idempotent Playbooks

  • This month: Complete a Python for Network Engineers course.
  • Next quarter: Write a Python script to pull specific operational data (e.g., interface stats) from 5-10 network devices via their API.
  • Month 3-6: Contribute to an existing Ansible playbook or create a new one for a common, repetitive task.
  • Ongoing: Participate in code reviews for network automation scripts and learn from others' work.

Quick win: Start using Python to parse log files or generate simple reports from your monitoring tools. Even small scripts can save significant time.

SD-WAN Policy & Traffic Engineering

SD-WAN is rapidly replacing traditional MPLS for many organisations, offering greater flexibility, cost savings, and application-aware routing. Understanding how to design and optimise traffic policies in an SD-WAN environment is becoming a core skill.

Application-Aware Routing · Multi-Transport Optimisation · Policy-Based Forwarding · Cloud On-Ramp Optimisation

  • This month: Read up on the architecture and key features of our chosen SD-WAN vendor (e.g., Viptela, Silver Peak).
  • Next quarter: Get hands-on with our SD-WAN controller, exploring existing policies and monitoring tools.
  • Month 3-6: Propose and implement a small policy change to optimise traffic for a non-critical application.
  • Ongoing: Attend vendor webinars and training sessions on advanced SD-WAN features.

Quick win: Understand the difference between traffic shaping and policing within an SD-WAN context, and how these impact application performance.

11Staying current once you are in

What people here do to keep up
  • Regularly engage with industry forums and communities (e.g., Packet Pushers, Reddit's r/networking) to stay current on trends and best practices.
  • Attend vendor webinars and online training sessions for our core network technologies (Cisco, Juniper, Palo Alto, cloud providers).
  • Build a home lab (physical or virtual using GNS3/EVE-NG) to experiment with new configurations and protocols in a safe environment.
  • Contribute to open-source network automation projects or build your own small scripts to solve repetitive tasks.
  • Read technical blogs and books on advanced networking topics, like BGP optimisation or cloud network design.

12The rising capability

The rising capability

Zavmo analysis

What's rising in its place

This is where the work is heading, and the higher pay with it. Get fluent here and the shift stops being a threat and starts being your edge.

Network Observability & AIOps Principles

Traditional monitoring is no longer enough. Networks are getting too complex, and the volume of data is too high for humans to process manually. AIOps (Artificial Intelligence for IT Operations) is becoming critical for proactive problem detection, root cause analysis, and even self-healing networks.

  • Telemetry Data Collection
  • Baslining & Anomaly Detection
  • Event Correlation
  • Predictive Analytics

Basic Cloud FinOps for Networking

As more of our infrastructure moves to the cloud, understanding the cost implications of network design choices is no longer just for finance. Every network specialist needs to be aware of how their configurations impact the cloud bill, especially with data egress and inter-region traffic.

  • Cloud Cost Models
  • Cost Optimisation Strategies
  • Tagging & Resource Grouping
  • Budget Monitoring

13What you’ll use

What you’ll use

Skills this role draws on

Technical

  • QoS Policy Design & Tuning
  • Dynamic Routing Protocol Optimisation (BGP/OSPF)
  • Network Capacity Planning & Forecasting
  • TCP/IP Stack Analysis
  • Cloud Networking Fundamentals (AWS/Azure/GCP)

14The pathway

The pathway

How you actually get there, here

How you become one varies far more by country than what one does. This is the UK route. Most people take one of these ways in; the right one depends on where you're starting from.

  1. 1

    Associate Network Analyst (L1)

    1-2 years

    Skills to master

    • Basic troubleshooting (Layer 1-3), network monitoring tool usage, accurate documentation, understanding of change management processes.

    You're ready to move on when

    • Consistently resolves P3/P4 incidents within target MTTR.
    • Can independently perform daily network health checks and identify anomalies.
    • Demonstrates a solid grasp of core TCP/IP fundamentals.
    • Proactively seeks to understand 'why' things work the way they do.
  2. 2

    IT Support Engineer (with Network Focus)

    2-3 years

    Skills to master

    • Troubleshooting end-user network issues, understanding of LAN/WLAN technologies, basic server/application connectivity, ticketing system proficiency.

    You're ready to move on when

    • Has resolved a significant number of network-related tickets (e.g., VPN issues, Wi-Fi connectivity).
    • Can clearly articulate network concepts relevant to end-user experience.
    • Shows initiative in learning deeper network infrastructure topics.
    • Has completed relevant network certifications (e.g., Network+, CCNA).
  3. 3

    Junior Systems Administrator (with Network Responsibilities)

    2-4 years

    Skills to master

    • Server OS networking (Linux/Windows), virtualisation networking, basic firewalling, understanding of DNS/DHCP.

    You're ready to move on when

    • Has configured and troubleshot network interfaces on servers and virtual machines.
    • Understands the impact of network configuration on application performance.
    • Can effectively use network diagnostic tools from a server perspective.
    • Expresses a strong desire to specialise purely in network optimisation.

15Where this role leads

The long view: This work can lead to a Lead Network Engineer role, designing solutions across multiple systems, or a Principal Network Architect role, setting technical direction for major network components.

The ten Future Fluencies

Zavmo analysis

The credential is what you can do today. These are what keep you valuable.

A qualification proves you can do the job as it's defined today. These ten are what decide whether you're still the obvious person for it in five years. They're the capabilities employers are now writing into senior roles faster than people are learning them. Zavmo weaves them through whatever you study, so you come out with both: the credential and the fluency.

The highlighted ones are the Fluencies your role leans on hardest, from how Network Optimisation Specialist is actually changing.

Where it leads

Roles this leads to

How you would learn this

One to one, on the work you already do

A tutor sets the task against your own job and marks the reasoning, at your pace. There is no cohort to fall behind.

A lesson from Cisco CCNP Troubleshooting, worked against Network Optimisation Specialist.

Cisco CCNP Troubleshooting Level 4

Applied to your work in Network Optimisation Specialist

The objective of this unit is to develop learners' abilities in planning maintenance and troubleshooting complex enterprise networks. Learners will understand troubleshooting processes, implement maintenance tools, and maintain campus switched solutions, ensuring network stability and performance through effective diagnosis and resolution of network issues.

How the thinking builds
  1. 1 Remember
  2. 2 Understand
  3. 3 Apply
  4. 4 Analyse
  5. 5 Evaluate
  6. 6 Create
An illustration of a Zavmo lesson, built from this role’s own route. The unit, its objective and every criterion above are the awarding body’s own words, not an example.

It is £70 a month, billed monthly. Your free first module is Future Fluency, and you can cancel any time.

Start my Network Optimisation Specialist plan, free
See Your Progress Grow Illustration
Network Optimisation Specialist
  • QoS Policy Design & Tuning
  • Dynamic Routing Protocol Optimisation (BGP/OSPF)
  • Network Capacity Planning & Forecasting
  • TCP/IP Stack Analysis
  • Cloud Networking Fundamentals (AWS/Azure/GCP)
This is your Mind Palace on learn.zavmo.ai. Every skill above comes from this role's own record, not an example borrowed from another job. A node lights up when you evidence it, and what you build stays yours between jobs. That is the part a course cannot do.

16The detail, folded away

Everything else the record holds

The career branches in full, how AI is already showing up in the day-to-day, and the questions people ask about this job. Here when you want them, out of the way while you decide.

Where it leads next, rung by rung

Where it leads

The career path, and where it branches

Network Optimisation Specialist is a start, not a ceiling. Each step below asks for new skills and hands back more autonomy.

  1. Senior Network Optimisation Specialist (L3)

    3-5 years in current role

    You'll move from independently resolving issues to leading complex projects and mentoring others. Your scope will expand to owning entire workstreams.

    • Advanced SD-WAN Architecture & Policy Management Designing and implementing complex SD-WAN solutions.
    • Deep Cloud Networking (AWS/Azure/GCP) Architecting hybrid connectivity and optimising cloud network performance.
    • Network Automation Scripting (Python/APIs) Writing custom scripts for complex, multi-step tasks.
    • Complex BGP/OSPF Traffic Engineering Mastering advanced routing policies to influence global traffic flow.
Working with AI on the job

Working with AI

Where AI is starting to help

Let's be real, a big chunk of network optimisation involves sifting through mountains of data, logs, and documentation. It's essential, but it can be a time sink. Here's the thing: you don't have to do it all manually anymore. We're integrating AI tools to take the grunt work out of your day, letting you focus on the really interesting, complex problems.

Imagine having a co-pilot that helps you spot anomalies before they become outages, or instantly summarises dense RFCs. That's not science fiction; it's what our Network Optimisation Specialists are starting to do right now. We're not replacing your expertise; we're amplifying it, giving you more time to architect solutions and less time on repetitive tasks.

Proactive Anomaly Detection

Use AI/ML platforms (like Datadog AI or a custom ELK model) to analyse baseline network traffic patterns. The AI automatically flags statistically significant deviations (e.g., unusual traffic flows, sudden latency spikes) that precede major outages, turning reactive firefighting into proactive problem-solving. It's like having an extra pair of eyes that never blinks.

Root Cause Analysis Accelerator

Feed logs from firewalls, routers, servers, and applications into an AI-powered correlation engine. When an issue occurs, the AI can instantly identify the most likely sequence of events across disparate systems that led to the failure, pointing directly to the root cause instead of requiring hours of manual log comparison. This really shortens the 'what happened?' phase.

RFC & Vendor Doc Summariser

When faced with a complex configuration for a niche protocol, use a private AI assistant (like a local LLM) to summarise dense RFC documents or 500-page vendor configuration guides. Ask specific questions like, 'Summarise the key differences in BGP community handling between Cisco IOS-XR and Juniper Junos,' to get immediate, actionable answers. No more endless scrolling.

Stakeholder Comms Generator

After a complex incident, use an AI tool to draft a clear, concise post-mortem or executive summary. Provide it with the technical timeline and key findings, and ask it to generate a business-friendly explanation of the impact, root cause, and remediation steps, saving time and ensuring consistent communication. It's a lifesaver when you're tired after a major incident.

Common questions

Common questions

How do you become a Network Optimisation Specialist?

Common routes in include Associate Network Analyst (1-2 years), IT Support Engineer (with Network Focus) (2-3 years) and Junior Systems Administrator (with Network Responsibilities) (2-4 years). Times vary with prior experience.

Where can a Network Optimisation Specialist progress to?

This role can lead on to Senior Network Optimisation Specialist (3-5 years in current role), depending on the skills you build.

What new skills matter most for a Network Optimisation Specialist?

Increasingly, Network Observability & AIOps Principles and Basic Cloud FinOps for Networking. These are the skills our record of this role lists as growing.

Free tools

Want a read on where you stand?

Three free tools, no account needed. Each one ends with a role, a level and a way in.

Read the Zavmo manifesto to understand how you will be taught Meet your tutors

Or try another one

17Where to go from here

Other roles at Level 3

Same depth of qualification, different job. Useful if the work appeals but this particular role does not.

 More jobs in technology and data

Stay in the field you know and move sideways rather than up.
If you leave this industry

The skills built in this role transfer well. They can lead into cloud networking, network security engineering, or network automation and DevOps roles. A solid grasp of network performance is useful in technical infrastructure roles across industries such as finance, media and e-commerce.

This role profile is © 2026 Growth Engineering Technologies Ltd. Built from UK occupational standards and regulated qualification data, and written for Zavmo.

You're not behind. You're right on time. The shift is only just beginning. Your role won't look the same in two years. Be the one who leads the change, not the one it happens to. Start my Network Optimisation Specialist plan, free What happens next: a free account, then we build your plan as you set up. No card. Build your plan, see your roadmap and meet the twelve tutors matched to you. All free. When you're ready to start learning, it's £70 a month, billed monthly. Cancel any time and billing stops.