SLI HRMS is a specialized cloud-based human resource management platform designed to streamline core HR operations, payroll, and workforce administration. The software provides tools for employee attendance tracking, leave management, performance evaluations, and automated payroll processing to reduce administrative burden. By centralizing employee data into a single portal, it enables organizations to increase operational efficiency and foster seamless employee self-service capabilities.
HQ: Bengaluru, India • Human Resources • Software • 5000+ employees
Executive • Remote/Hybrid (Glasgow, Bristol, London, Manchester, Cambridge, United Kingdom) • Full-Time • Architect
Remote/Hybrid (Bristol, London, United Kingdom) • Full-Time
≈ $55k – $130k per year (Estimated) • Senior • Remote/Hybrid (Bristol, London, United Kingdom) • Full-Time • Senior
US headquartered Arista Networks provides software-driven cloud networking solutions for large data center, cloud computing, high-performance computing and high-frequency trading environments. Products includes Low latency switches.
HQ: Santa Clara, United States • Telecommunications • Information Technology • Data Centers • Network Equipment • Enterprise Networks • 1001-5000 employees • Est. 2004
London • Remote (United Kingdom) • Full-Time • Senior • English: C1
Applied Systems is a global provider of cloud-based software solutions for the property and casualty (P&C) insurance industry. The company delivers an integrated insurtech ecosystem centered around flagship agency management platforms - such as Applied Epic and EZLynx - alongside automated comparative rating, digital payments (Applied Pay), and AI-driven workflow tools.
Bengaluru • Chicago • New York • Atlanta • Salt Lake City • Information Technology • Cloud Computing • Data & Analytics • Sales & Marketing • 501-1000 employees • Est. 1983
$90k – $140k per year • Senior • 5+ years exp • Remote (North America, United Kingdom) • Bachelor's Degree • Senior
Ansible
AWS
Azure
CI/CD
Cloudflare
GCP
Git
GitLab CI
Terraform
GitLab
Exponential-e is a London company founded in 2002 that owns and operates its own national fibre network. It sells connectivity, cloud and unified communications to enterprises and public sector customers over that network. The company runs its own data centres and network operations centre in Britain.
HQ: London, United Kingdom • Artificial Intelligence • Information Technology • Cybersecurity • Est. 2002
In office (London, United Kingdom)
In office (London, United Kingdom)
Assembly
DevOps
SLI/SLO/SLA
Cybersecurity
Tcpdump
Wireshark
FortiGate
Web3
Layer 2
Founded in 1998, GTT Communications, Inc. is a multinational telecommunications and internet provider company. The company is headquartered in McLean, Virginia.
Pune • Sofia • Prague • Nottingham • London • ISP • Telecom Infrastructure • Telecommunications • 501-1000 employees
≈ $59k – $140k per year (Estimated) • Senior • 5+ years exp • Nottingham • Remote (United Kingdom) • PhD • Full-Time • Senior
Braze is a cloud-based customer engagement platform that helps brands deliver personalized, data-driven messaging across multiple digital touchpoints. Founded in 2011 (originally as Appboy) and publicly traded on NASDAQ (BRZE), the company specializes in real-time lifecycle marketing and cross-channel orchestration.
New York • San Francisco • Austin • Chicago • London • Software • Customer Relationship Management (CRM) • Sales & Marketing • Marketing Automation • 51-200 employees • Est. 2011
≈ $48k – $123k per year (Estimated) • Equity • Middle • 5+ years exp • In office (London, United Kingdom) • Middle
ElasticSearch
AI/ML
AI Agents
Cybersecurity
Okta
Zscaler
Deliveroo is an award-winning delivery service founded in 2013 by William Shu and Greg Orlowski. Deliveroo works with approximately 176,000 best-loved restaurants and grocery partners, as well as around 150,000 riders to provide the best food delivery experience in the world. Deliveroo is headquartered in London, with offices around the globe.
Lucca • London • Paris • Manchester • Birmingham • Marketplaces • Transportation & Logistics • Delivery
Executive • In office (London, United Kingdom) • Full-Time • Architect
CrowdStrike is a global cybersecurity leader specializing in cloud-delivered endpoint protection, threat intelligence, and cyberattack response services. Headquartered in Austin, Texas, and publicly traded on the Nasdaq (CRWD), the company provides real-time security solutions to enterprises worldwide.
HQ: Austin, United States • Cybersecurity AI • LLM & Generative AI • Artificial Intelligence • Professional Services • Application Security • Threat Intelligence • Endpoint Security • Cybersecurity • 5000+ employees
≈ $50k – $129k per year (Estimated) • Equity • Middle • 5+ years exp • In office (London, United Kingdom) • Full-Time • Senior
Python
DevOps
Ansible
AWS
Chef
CI/CD
GCP
Git
Jenkins
Puppet
Cybersecurity
Crowdstrike
OpenAI is an American artificial intelligence research and deployment company founded in 2015 with the mission of ensuring that artificial general intelligence benefits all of humanity. It develops the GPT family of large language models and turns them into consumer and developer products, including the ChatGPT assistant, the Sora video model, the Codex coding agent and a commercial API used by millions of developers. Structured as a public benefit corporation controlled by a non-profit foundation, the company is backed by Microsoft and SoftBank and operates from San Francisco.
HQ: San Francisco, United States • Multimodal AI • AI Agents • Artificial Intelligence • Machine Learning • LLM & Generative AI • 1001-5000 employees • Est. 2015
In office (London, United Kingdom) • Relocation • Full-Time
Methods is a digital transformation consultancy headquartered in London, United Kingdom, and founded in 1990. The company designs and delivers user centred digital services, data platforms, cloud migrations, and cyber security work almost entirely for the United Kingdom public sector. It has been part of the French engineering group Alten since 2022 and holds places on major government procurement frameworks including G-Cloud and Digital Outcomes.
HQ: London, United Kingdom • Professional Services • System Integration • Government • Digital Government • Information Technology • IT Consulting • 5000+ employees • Est. 1990
In office (London, United Kingdom) • Full-Time
Azure
Cybersecurity
Least Privilege
Zero Trust
Blockchain Capital is one of the earliest dedicated digital asset venture firms, founded in 2013 in San Francisco. It has invested across many funds in exchanges, infrastructure, decentralised finance and consumer applications. The firm was also a pioneer of tokenised fund structures, issuing a security token to represent limited partner interests.
HQ: San Francisco, United States • Blockchain & Crypto • Est. 2013
$40k – $55k per year • Junior • 2+ years exp • Remote (EU, Europe, South Africa) • Full-Time • Junior
AI Agents
DevOps
Ansible
AWS
Azure
GCP
Terraform
Cybersecurity
Defense in Depth
Zero Trust
Least Privilege
Abacus.AI is a San Francisco company founded in 2019 that offers an end-to-end platform for building, deploying and operating machine learning and large language model applications. The product covers forecasting, personalisation, anomaly detection and retrieval-augmented agents, with automated model selection intended to replace much of the manual data science work. It sells mainly to enterprises that want AI systems in production without assembling a large in-house research team.
HQ: San Francisco, United States • Data & Analytics • LLM & Generative AI • Artificial Intelligence • Est. 2019
≈ $68k – $161k per year (Estimated) • Senior • 5+ years exp • Edinburgh • Remote (United Kingdom) • Bachelor's Degree • Senior
Sectigo is a leading provider of SSL certificates & automated certificate management solutions. A Certificate Authority trusted by global brands for 20+ years.
Manchester • Ottawa • Frankfurt am Main • Hamburg • Berlin • Information Security • Cybersecurity • Digital Signature
$75k – $84k per year • Senior • 5+ years exp • Manchester • Remote (United Kingdom) • Bachelor's Degree • Full-Time • Middle • English
Python
DevOps
Ansible
AWS
Nagios
Terraform
Cybersecurity
GDPR
HIPAA
PCI DSS
Tcpdump
Wireshark
Web3
Layer 2
Fluence Energy delivers grid-scale battery storage products and optimisation software. Its systems help utilities firm renewable output, defer transmission upgrades and provide ancillary services. The company also runs bidding software that trades storage assets in power markets.
HQ: Arlington, United States • Financial Services • Science & Engineering • Energy Storage • 501-1000 employees • Est. 2018
≈ $49k – $125k per year (Estimated) • Middle • 3+ years exp • Remote/Hybrid (London, United Kingdom, Berlin, Erlangen, Germany, Amsterdam, Netherlands) • Bachelor's Degree • Full-Time • Middle • English: C1
Bash
Python
DevOps
GitHub
Fuse Energy is a British household energy supplier headquartered in London, founded by former Revolut executives. It was the first new domestic energy supplier in Great Britain since the 2021 energy crisis and operates its own renewable generation assets.
HQ: London, United Kingdom • Solar Energy • Energy & Utilities • 501-1000 employees • Est. 2022
≈ $68k – $161k per year (Estimated) • In office (London, United Kingdom) • Full-Time
Python
JavaScript
AI/ML
InfiniBand
Frontend
Bootstrap
DevOps
Ansible
Configuration Management
Datadog
Grafana
Prometheus
HPC
Cybersecurity
FortiGate
Web3
Solana
Motorola Solutions is a global leader in public safety and enterprise security solutions, specializing in land mobile radio communications, video security, access control, and command center software. Created in 2011 following the spin-off of Motorola's mobile phone division, the Chicago-based company primarily serves law enforcement, emergency medical services, government agencies, and commercial enterprises. Its integrated ecosystem connects critical communications, AI-powered video analytics, and emergency dispatch systems to help organizations safeguard communities and operations.
HQ: Chicago, United States • Government • Military • Law Enforcement • Military Communication • 1001-5000 employees • Est. 2011
≈ $56k – $132k per year (Estimated) • Equity • Senior • 5+ years exp • In office (London, Edinburgh, Coventry, Glasgow, United Kingdom) • Relocation • Full-Time • Senior
Grafana
Incident Management
Prometheus
OpenShift
VMWare
Cybersecurity
ISO 27001
Wireshark
Ripple is a financial technology company that provides enterprise-grade blockchain infrastructure for real-time cross-border payments, liquidity, and asset tokenization. Its platform allows banks, payment providers, and institutions to execute instant, low-cost international transactions using its global network and digital assets like XRP as bridge liquidity. Beyond its core payment rails, the company offers digital asset custody solutions, stablecoin infrastructure, and central bank digital currency (CBDC) platform tools.
Tallinn • San Francisco • Chicago • Dublin • London • Financial Services • Cryptocurrencies • Blockchain & Crypto • 1001-5000 employees
≈ $73k – $186k per year (Estimated) • Staff+ • In office (London, United Kingdom) • Internship • Staff
Python
DevOps
Ansible
CI/CD
SLI/SLO/SLA
Cybersecurity
Zero Trust
Accenture is a leading global professional services company specializing in strategy, consulting, technology, and operations services. Headquartered in Dublin, Ireland, the firm helps organizations optimize their business performance, navigate digital transformation, and implement advanced technologies like AI and cloud computing.
HQ: Dublin, Ireland • HQ: Chicago, United States • Artificial Intelligence • IT Consulting • Information Technology • 5000+ employees • Est. 1989
≈ $54k – $114k per year (Estimated) • Junior • In office (London, United Kingdom) • Full-Time
Incident Management
SLI/SLO/SLA
Pismo provides cloud-native core banking and card processing infrastructure. Its platform runs accounts, cards and payments for banks worldwide. The company was acquired by a global payments network.
HQ: São Paulo, Brazil • FinTech • Financial Services • Banking • 1001-5000 employees • Est. 2016
≈ $73k – $173k per year (Estimated) • Senior • 5+ years exp • In office (London, United Kingdom) • Bachelor's Degree • Full-Time • Senior
Checkout.com is a London payments company founded in 2012 that processes card and alternative payments for large online merchants. It built a full stack acquiring and processing platform rather than assembling third party components, which lets it optimise authorisation rates directly. Its customers include marketplaces, streaming services and digital asset platforms across Europe, the Middle East and Asia.
HQ: London, United Kingdom • Blockchain & Crypto • Financial Services • Artificial Intelligence • 51-200 employees • Est. 2012
≈ $70k – $166k per year (Estimated) • Senior • 8+ years exp • In office (London, United Kingdom) • Full-Time • Senior
Python
Databases
ElasticSearch
DevOps
Ansible
Datadog
Grafana
Splunk
Cybersecurity
PCI DSS
SOC 2
Management
Jira
ServiceNow
Salary range
| Seniority |
Jobs |
25% |
Median |
75% |
| All levels |
14 |
$90K |
$97K |
$115K |
Few employers in this selection publish pay, so these figures are Alion estimates built from comparable listings by role, level and country. Gross annual, converted to USD.
The market right now
Alion currently lists 26 open Network Engineer jobs in London from 23 companies. 5 of them were posted or refreshed in the last seven days. 20 of the employers have posted something in the last three months, which is the pool worth watching if you are starting a search now. Every listing links straight to the employer, so you apply on their own board rather than through an intermediary.
What these roles pay
Most employers in this selection do not publish a figure, so the range below is Alion's own estimate, derived from 14 comparable listings priced by role, level and country. Across them the middle half of the market sits between $90K and $115K a year, with a median of $97K. Figures are gross annual amounts converted to US dollars, so roles in different currencies stay comparable.
Where the work is
The largest concentrations of these roles are United Kingdom (3), Germany (1), and Netherlands (1). 31% of the listings are fully remote and a further 15% are hybrid, so a large part of this market is open to you regardless of where you live.
Who is hiring
The employers with the most open Network Engineer jobs in London right now are SLI HRMS (3), Exponential-e (2), Arista Networks (1), Applied Systems (1), GTT (1), and Braze (1). Each company page on Alion carries its size, funding stage, tech stack and every other position it has open, so you can judge the employer before you spend an evening on the application.
What employers ask for
Reading across the current listings, the tools that come up most often are Python (10), Ansible (8), AWS (5), SLI/SLO/SLA (5), CI/CD (5), Azure (4), Wireshark (4), and Git (3). The counts are how many of these openings name each one, which is a better guide to what is actually being hired for than a generic skills list.
Relocation, visas and equity
Of the current Network Engineer jobs in London, 2 offer a relocation package and 4 include equity. These are filters on the list above, so you can narrow it to the ones that make a move possible for you.
