Network Engineer jobs in London hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $223,741/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
Grant Thornton UK is the British member firm of the Grant Thornton International network, headquartered in London, providing audit and assurance, tax, advisory, deals, forensic, restructuring and consulting services to privately held businesses, public interest entities and public sector bodies. The firm operates offices across the UK, including Birmingham, Manchester, Leeds, Bristol and Glasgow, and in 2025 private equity firm Cinven completed the acquisition of a majority stake in the business. It hires audit managers, tax managers and associate directors, financial reporting and internal audit specialists, financial crime and technology risk staff, legal counsel and engineers.
nscale.com · HQ: London, United Kingdom · Data Centers & Colocation · AI Compute & Inference · 501-1000 employees · Est. 2024 · Trust A · Hiring 235, 14 new
HQ: London, United Kingdom · Data Centers & Colocation · AI Compute & Inference · 501-1000 employees · Est. 2024 · Trust A · Hiring 235, 14 new
Nscale is a London-based AI infrastructure company that builds and operates GPU data centres and runs a full-stack AI cloud offering managed inference, Kubernetes and Slurm clusters, bare-metal instances and dedicated GPU capacity. Founded in 2024 by Josh Payne and Nathan Townsend, it develops sites in Norway, the UK, South Korea and North America, works with Microsoft and NVIDIA, and acquired Anyscale in July 2026 to extend its cloud platform. Its hiring spans data centre design and construction, electrical and infrastructure operations, HPC and storage engineering, networking, solutions architecture, legal, finance and marketing.
nttdata.com · HQ: Tokyo, Toyosu, Japan · Health Care · Cybersecurity · Data Centers & Colocation · Information Technology · Managed IT Services (MSP) · Financial Software & Embedded Finance · IT Consulting & Digital Transformation · Systems Integrators · 5000+ employees · Est. 1988 · Trust A · Hiring 1691, 248 new
HQ: Tokyo, Toyosu, Japan · Health Care · Cybersecurity · Data Centers & Colocation · Information Technology · Managed IT Services (MSP) · Financial Software & Embedded Finance · IT Consulting & Digital Transformation · Systems Integrators · 5000+ employees · Est. 1988 · Trust A · Hiring 1691, 248 new
NTT DATA is a Tokyo system integrator founded in 1988 that spun out of the data communications arm of NTT. It is one of the largest information technology services firms in the world, building banking, public sector and payment systems and operating global consulting and managed services. The company runs the CAFIS payment network used across Japanese retail and banking.
HQ: London, United Kingdom · Financial Services · Online Brokerage & Trading Platforms · Forex & CFD Brokers · 5000+ employees · Est. 2003 · Hiring 64, 4 new
IG is an online trading and fintech group that offers CFDs, knock-outs and options on its trading platform and describes itself as a FTSE 100 fintech with more than 1.3 million customers across five continents. Its job ads cover platform reliability, data and machine learning engineering, client management and finance systems roles in London, Kraków, Bengaluru and Singapore. The company is headquartered in London, United Kingdom.
foundational.io · HQ: San Francisco, United States · Data Quality & Observability · Data Governance & Catalogs · 51-200 employees · Est. 2022 · Startup · Hiring 26
HQ: San Francisco, United States · Data Quality & Observability · Data Governance & Catalogs · 51-200 employees · Est. 2022 · Startup · Hiring 26
Foundational analyses data pipeline code to catch breaking changes and governance problems before they are merged. It maps column-level lineage across warehouses and transformation code so an engineer sees what a change will affect. The product is aimed at teams whose data models have outgrown manual review.
ryan.com · HQ: Plano, United States · Tax Advisory & Preparation · 1001-5000 employees · Est. 1991 · Hiring 167, 19 new
HQ: Plano, United States · Tax Advisory & Preparation · 1001-5000 employees · Est. 1991 · Hiring 167, 19 new
Ryan is a global tax services, software and technology firm headquartered in Plano, Texas, in the Dallas area, providing federal, state, local and international tax recovery, consulting, advocacy, compliance and property tax services to corporate clients. Founded in 1991 by Brint Ryan, the firm has offices across the United States, Canada, Europe and Asia-Pacific and says it recovered more than $4 billion in tax savings for clients in a single year. Its postings span property, income, sales and use tax, VAT recovery and credits and incentives consultants, tax software sales, and corporate roles in compensation, security and technology operations.
sonyinteractive.com · HQ: San Mateo, United States · Media & Entertainment · Gaming · Game Development · Console Games · Gaming Consoles · 5000+ employees · Est. 1993 · Trust A · Hiring 180, 19 new
HQ: San Mateo, United States · Media & Entertainment · Gaming · Game Development · Console Games · Gaming Consoles · 5000+ employees · Est. 1993 · Trust A · Hiring 180, 19 new
Sony Interactive Entertainment is the video game division of the Sony group, formed in 1993 to develop the original PlayStation and now headquartered in San Mateo, California rather than Tokyo. It designs and sells the PlayStation consoles and accessories, runs the PlayStation Network and its PlayStation Plus subscription service, and owns PlayStation Studios, a group of development studios including Naughty Dog, Insomniac Games, Guerrilla Games, Santa Monica Studio and Bungie. The business earns most of its revenue from software and network services rather than hardware, and its first-party titles are increasingly released on personal computers after a console exclusivity window.
marex.com · HQ: London, United Kingdom · Financial Data & Market Intelligence · Online Brokerage & Trading Platforms · 1001-5000 employees · Trust B · Hiring 73, 8 new
HQ: London, United Kingdom · Financial Data & Market Intelligence · Online Brokerage & Trading Platforms · 1001-5000 employees · Trust B · Hiring 73, 8 new
Marex is a diversified global financial services platform headquartered in London that provides clearing, market making, agency and execution, and hedging and investment solutions across energy, commodity and financial markets. It serves producers, consumers, traders and institutions in agriculture, energy, environmental, metals and capital markets from offices in Europe, the Americas and Asia Pacific, and its shares trade on Nasdaq in New York. Its openings include operations and clearing analysts, product controllers, audit managers, IT and service reliability support staff, product designers, business resilience analysts and executive assistants, mostly in London, New York and Chicago.
cboe.com · HQ: Chicago, United States · Stock Exchanges & Market Infrastructure · 501-1000 employees · Est. 1973 · Cboe: CBOE · Hiring 90, 3 new
HQ: Chicago, United States · Stock Exchanges & Market Infrastructure · 501-1000 employees · Est. 1973 · Cboe: CBOE · Hiring 90, 3 new
Cboe Global Markets is a derivatives and securities exchange operator headquartered in Chicago, Illinois, that runs options, equities, futures and foreign exchange markets together with clearing, market data and index services. Founded in 1973 as the Chicago Board Options Exchange, the first US listed options exchange, it is home to the VIX volatility index and operates exchanges in the United States, Canada, Europe and Australia as a public company. It hires software engineers for trading and clearing systems, data engineers, trading floor operations specialists, regulatory investigators, legal counsel, risk managers and interns.
inabia.com · HQ: Bellevue, United States · Analytics & BI Consulting · IT Consulting & Digital Transformation · IT Staffing & Staff Augmentation · 201-500 employees · Est. 2006 · Staffing · EOR · Trust A · Hiring 92, 16 new
HQ: Bellevue, United States · Analytics & BI Consulting · IT Consulting & Digital Transformation · IT Staffing & Staff Augmentation · 201-500 employees · Est. 2006 · Staffing · EOR · Trust A · Hiring 92, 16 new
Inabia is an American technology consulting and staffing company, trading as Inabia Software & Consulting, that supplies software engineers, data specialists and analysts to enterprise and public sector clients. Its work covers custom application development, data engineering and analytics, cloud infrastructure, security engineering such as Splunk and SIEM, and applied artificial intelligence, delivered as consulting engagements and as placements of specialists into client teams. The company is headquartered in Bellevue, Washington, United States.
meridianspace.com · Long Beach · London · Satellite Communications · Trust B · Hiring 9
Long Beach · London · Satellite Communications · Trust B · Hiring 9
Top of page Pioneering the next generation of satellite broadband. Our Commitment to Space Innovation SpinLaunch’s low-cost, dynamic satcom solution offers enterprise customers reliable, high-speed broadband service, wherever it's needed.
amazon.com · HQ: Seattle, United States · Robotics AI · Logistics & Warehouse Robotics · Video Production · Developer Tools · Advertising · Logistics · Streaming & OTT Platforms · Cloud Platforms (IaaS & PaaS) · Marketplaces · 1-10 employees · Est. 1994 · Trust B · Hiring 15264, 1147 new
HQ: Seattle, United States · Robotics AI · Logistics & Warehouse Robotics · Video Production · Developer Tools · Advertising · Logistics · Streaming & OTT Platforms · Cloud Platforms (IaaS & PaaS) · Marketplaces · 1-10 employees · Est. 1994 · Trust B · Hiring 15264, 1147 new
Amazon is an American technology and retail conglomerate founded by Jeff Bezos in 1994 as an online bookstore and headquartered in Seattle, Washington. It operates the world's largest online marketplace together with a global logistics network, physical grocery stores and a third-party seller platform that accounts for most units sold. Amazon Web Services, launched in 2006, is the leading public cloud provider and generates the majority of the group's operating profit, while advertising, Prime Video, Alexa devices and Kuiper satellite broadband round out the business.
wanstor.com · HQ: London, United Kingdom · Managed Security · Cloud Consulting & Migration · Managed IT Services (MSP) · 201-500 employees · Est. 2002 · Hiring 7
HQ: London, United Kingdom · Managed Security · Cloud Consulting & Migration · Managed IT Services (MSP) · 201-500 employees · Est. 2002 · Hiring 7
Wanstor helps ambitious organisations create better digital experiences, strengthen security and unlock measurable value from technology. Through managed IT, cloud, cybersecurity and AI services, we reduce friction, improve productivity and help teams do their best work.
nexgencloud.com · HQ: London, United Kingdom · High-Performance Computing · Cloud Platforms (IaaS & PaaS) · AI Compute & Inference · 11-50 employees · Est. 2020 · Startup · Hiring 11, 1 new
HQ: London, United Kingdom · High-Performance Computing · Cloud Platforms (IaaS & PaaS) · AI Compute & Inference · 11-50 employees · Est. 2020 · Startup · Hiring 11, 1 new
NexGen Cloud is a British AI cloud provider offering GPU infrastructure and customised cloud solutions for AI training and inference workloads, positioned as UK-owned and EU-sovereign. Founded in 2020, it builds and operates data centre deployments and high-performance computing capacity for enterprise customers. The company is headquartered in London, United Kingdom.
qube-rt.com · HQ: London, United Kingdom · Hedge Funds & Alternative Investments · 1001-5000 employees · Est. 2018 · Trust A · Hiring 179, 14 new
HQ: London, United Kingdom · Hedge Funds & Alternative Investments · 1001-5000 employees · Est. 2018 · Trust A · Hiring 179, 14 new
Qube Research & Technologies is a quantitative hedge fund and investment manager that runs systematic trading strategies across global markets. It applies statistical research, machine learning and high-performance technology to trade equities, futures, options, credit and other liquid asset classes. The firm was founded in 2018 by a team from Credit Suisse's quantitative trading business led by Pierre-Emmanuel Juillard and is headquartered in London.
ice.com · HQ: Atlanta, United States · Financial Services · Stock Exchanges & Market Infrastructure · 1001-5000 employees · Est. 2000 · NYSE: ICE · Trust B · Hiring 242, 21 new
HQ: Atlanta, United States · Financial Services · Stock Exchanges & Market Infrastructure · 1001-5000 employees · Est. 2000 · NYSE: ICE · Trust B · Hiring 242, 21 new
Headquartered in Atlanta, Georgia, Intercontinental Exchange is a multinational corporation that operates global financial markets and premier exchanges, including the New York Stock Exchange. The company delivers essential market infrastructure, clearing houses, and comprehensive data services across major asset classes such as equities, energy, and fixed income. Through its advanced digital networks and workflow technologies, it provides institutional clients and global financial institutions with critical risk management and trading execution tools.
gresearch.com · HQ: London, United Kingdom · Machine Learning · Hedge Funds & Alternative Investments · 201-500 employees · Est. 2001 · Trust A · Hiring 60, 1 new
HQ: London, United Kingdom · Machine Learning · Hedge Funds & Alternative Investments · 201-500 employees · Est. 2001 · Trust A · Hiring 60, 1 new
G-Research is a quantitative research and technology firm headquartered in London that applies machine learning, big data and high-performance computing to predict movements in global financial markets. It brings researchers and engineers together in its Soho Place office in central London, opened in 2023, has a further office in Dallas, and funds PhD prizes, monthly research grants and work experience programmes for students. It hires quantitative researchers and developers, C++ and machine learning engineers, Kubernetes and platform engineers, network and database engineers, engineering managers and analytics staff.
