DevOps Engineer jobs in London hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $173,277/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
ssctech.com • HQ: Windsor, United States • Workflow & Process Automation (RPA, BPM) • Custody & Fund Administration • Financial Software & Embedded Finance • 5000+ employees • Est. 1986 • Trust A • Hiring 279, 27 new
HQ: Windsor, United States • Workflow & Process Automation (RPA, BPM) • Custody & Fund Administration • Financial Software & Embedded Finance • 5000+ employees • Est. 1986 • Trust A • Hiring 279, 27 new
SS&C Technologies is a financial services and healthcare software and services company headquartered in Windsor, Connecticut, whose brands include GlobeOp fund administration, Advent, Intralinks, GIDS, SS&C Health and Blue Prism automation. Founded in 1986 by William Stone, who still leads it, the Nasdaq-listed company has grown through acquisitions such as Advent, DST Systems and Blue Prism and employs more than 27,000 people across offices in dozens of countries. Its openings range from product managers, implementation consultants and quantitative financial engineers to hedge fund and private equity accountants, client success staff, operations analysts and sales executives.
secondfront.com • HQ: Arlington, United States • Digital Government • Security Compliance • Est. 2014 • Trust A • Hiring 22
HQ: Arlington, United States • Digital Government • Security Compliance • Est. 2014 • Trust A • Hiring 22
Second Front Systems accelerates the accreditation of commercial software for government use. Its Game Warden platform hosts vendor applications inside approved secure environments. Defence agencies use it to adopt modern tools far faster than usual.
Headquartered in Toronto, Canada, Index Exchange is a global advertising technology company specializing in supply-side platform (SSP) and ad exchange solutions. The company provides an independent marketplace that enables digital publishers and media owners to monetize ad inventory in real time across web, mobile, and connected TV screens. By delivering transparent, automated ad trading workflows and header bidding capabilities, it helps marketers reach audiences efficiently while maximizing revenue for content creators.
skyral.com • HQ: London, United Kingdom • Defense Manufacturing • Simulation & Digital Twin Software • 51-200 employees • Est. 2023 • Startup • Trust B • Hiring 9
HQ: London, United Kingdom • Defense Manufacturing • Simulation & Digital Twin Software • 51-200 employees • Est. 2023 • Startup • Trust B • Hiring 9
Skyral builds large-scale simulation software that models populations, infrastructure and military scenarios. Spun out of Improbable's defence business in 2023, it lets planners test decisions in synthetic environments. Its customers include defence ministries and government analysis teams.
aoshearman.com • HQ: London, United Kingdom • Legal Services • 501-1000 employees • Est. 2024 • Trust B • Hiring 182, 13 new
HQ: London, United Kingdom • Legal Services • 501-1000 employees • Est. 2024 • Trust B • Hiring 182, 13 new
A&O Shearman is an international law firm formed in 2024 by the merger of London-based Allen & Overy and New York-based Shearman & Sterling, advising corporates, financial institutions and governments on finance, capital markets, M&A, disputes, regulatory and tax matters. It operates nearly 50 offices in about 29 countries, with major hubs in London, New York, Paris, Frankfurt, Luxembourg, Dubai, Singapore and Hong Kong and a large support centre in Belfast. It hires associates and lawyers across practice areas, trainees and interns, paralegals, and business services staff in IT, cyber defence, data engineering, finance, HR and marketing.
vantagedc.com • HQ: Denver, United States • Data Centers & Colocation • Est. 2008 • Trust B • Hiring 151, 11 new
HQ: Denver, United States • Data Centers & Colocation • Est. 2008 • Trust B • Hiring 151, 11 new
Vantage Data Centers is a leading global provider of hyperscale data center campuses that designs, builds, and operates critical digital infrastructure. Headquartered in Denver, Colorado, the company provides cloud providers, large tech enterprises, and artificial intelligence developers with high-density, customizable data storage and computing capacity. Backed by major infrastructure investors like DigitalBridge and Silver Lake, Vantage operates dozens of sustainable, powered campuses across North America, Europe, Asia-Pacific, and South America.
se.com • HQ: Rueil-Malmaison, France • Electrical Equipment & Cables • Industrial Automation • Energy Management • 5000+ employees • Est. 1836 • Trust B • Hiring 2215, 240 new
HQ: Rueil-Malmaison, France • Electrical Equipment & Cables • Industrial Automation • Energy Management • 5000+ employees • Est. 1836 • Trust B • Hiring 2215, 240 new
Headquartered in Rueil-Malmaison, France, Schneider Electric is a global leader in energy management and industrial automation. The company offers an extensive portfolio of connected hardware, software, and services designed to optimize efficiency across homes, buildings, data centers, and industrial infrastructure. Through digital transformation and smart grid technologies, the organization helps businesses and consumers achieve sustainable, reliable, and energy-efficient operations worldwide.
fluidstack.com • HQ: New York, United States • Data Centers & Colocation • Cloud Platforms (IaaS & PaaS) • AI Compute & Inference • 1001-5000 employees • Est. 2017 • Trust A • Hiring 210, 8 new
HQ: New York, United States • Data Centers & Colocation • Cloud Platforms (IaaS & PaaS) • AI Compute & Inference • 1001-5000 employees • Est. 2017 • Trust A • Hiring 210, 8 new
Fluidstack is an artificial intelligence infrastructure company that builds and operates large GPU clusters for model developers, research labs and enterprises. It began by aggregating idle compute from data centres and has since moved into developing dedicated gigawatt-scale sites, arranging the power, financing and construction alongside the clusters themselves, and it works with national governments and sovereign programmes as well as commercial labs. The company is headquartered in New York with a substantial London presence, and it competes with the specialist GPU cloud providers by taking on the energy and site development problem rather than only reselling capacity.
preply.com • HQ: Kyiv, Ukraine • EdTech Platforms • Language Learning • 1001-5000 employees • Est. 2012 • Trust B • Hiring 119, 5 new
HQ: Kyiv, Ukraine • EdTech Platforms • Language Learning • 1001-5000 employees • Est. 2012 • Trust B • Hiring 119, 5 new
Preply is an online tutoring marketplace founded in 2012 in Ukraine. It matches learners with language and subject tutors for live lessons. The platform serves millions of students worldwide.
janestreet.com • HQ: New York, United States • Hedge Funds & Alternative Investments • 1001-5000 employees • Est. 2000 • Trust B • Hiring 169, 4 new
HQ: New York, United States • Hedge Funds & Alternative Investments • 1001-5000 employees • Est. 2000 • Trust B • Hiring 169, 4 new
Jane Street (Jane Street Capital) is a quantitative trading firm and liquidity provider specializing in automated market making, algorithmic execution, and high-frequency trading. Headquartered in New York, New York, the firm operates major regional hubs in London, Hong Kong, Singapore, and Amsterdam. Its core activities involve deploying proprietary quantitative research, machine learning models, and low-latency infrastructure to facilitate continuous trading across exchange-traded funds (ETFs), equities, options, fixed income, futures, and derivative products across more than 200 trading venues globally.
deepl.com • HQ: Cologne, Germany • Speech & Audio AI • Natural Language Processing • Translation Services • 501-1000 employees • Est. 2017 • Startup • Trust A • Hiring 7
HQ: Cologne, Germany • Speech & Audio AI • Natural Language Processing • Translation Services • 501-1000 employees • Est. 2017 • Startup • Trust A • Hiring 7
DeepL is a German artificial intelligence company founded in Cologne in 2017 that built a machine translation service widely judged more natural than the incumbents. It grew out of the Linguee bilingual dictionary and trained its own neural models on that curated corpus, releasing a product that handles nuance, register and idiom well enough to displace human first drafts in many professional settings. The company now serves more than thirty languages plus the DeepL Write editing assistant, DeepL Voice for live speech, and a developer API, selling largely to enterprises in regulated European industries that need translation without sending text to American providers.
darktrace.com • HQ: Cambridge, United Kingdom • Email Security • Network Security • Security Operations • Cybersecurity AI • 1001-5000 employees • Est. 2013 • Trust B • Hiring 66, 11 new
HQ: Cambridge, United Kingdom • Email Security • Network Security • Security Operations • Cybersecurity AI • 1001-5000 employees • Est. 2013 • Trust B • Hiring 66, 11 new
Darktrace is a British cybersecurity company founded in Cambridge in 2013 by mathematicians and former government intelligence staff, built on the idea that a network can be defended by learning its own normal behaviour rather than matching known attack signatures. Its Self-Learning AI builds a live model of how each user, device and workload usually behaves, flags deviations that no signature would catch, and can act autonomously to contain an intrusion in progress. The company listed in London in 2021 and was taken private by Thoma Bravo in 2024 for around five billion dollars, and it protects networks, email, cloud and operational technology for thousands of organisations.
comind.io • HQ: London, United Kingdom • Neurotech & Neuromodulation • Est. 2018 • Startup • Hiring 9
HQ: London, United Kingdom • Neurotech & Neuromodulation • Est. 2018 • Startup • Hiring 9
About Our mission is to redefine the way the brain is measured and treated to optimise patient outcomes across the care continuum. CoMind is a team of highly skilled and passionate individuals working towards the development of innovative neuromonitoring devices and neural interfaces.
cloudscaler.com • HQ: London, United Kingdom • Cloud Consulting & Migration • 51-200 employees • Est. 2018 • Trust B • Hiring 6
HQ: London, United Kingdom • Cloud Consulting & Migration • 51-200 employees • Est. 2018 • Trust B • Hiring 6
Supercharge your cloud transformation with Cloudscaler. An AWS Advanced Consulting Partner with multiple AWS competencies, we specialise in Enablement, AWS Platforms, and AI & Data — delivering secure, scalable, and compliant solutions that accelerate innovation and reduce risk.
perk.com • HQ: London, United Kingdom • Travel Technology • Business Travel • 1001-5000 employees • Est. 2015 • Trust B • Hiring 124, 6 new
HQ: London, United Kingdom • Travel Technology • Business Travel • 1001-5000 employees • Est. 2015 • Trust B • Hiring 124, 6 new
Perk (formerly TravelPerk) is an AI-native travel and spend management platform that unifies corporate travel booking, expense tracking, and invoice processing into a single ecosystem. Headquartered in London and Boston, the corporate technology unicorn serves thousands of enterprise clients globally with tools for 24/7 travel support, automated policy enforcement, and real-time expense reconciliation. By automating manual administrative tasks and integrating with major ERPs, the platform helps organizations save time and maintain full visibility over corporate expenditures.
fourth.com • HQ: London, United Kingdom • Scheduling & Booking Software • HR & Payroll Software • 5000+ employees • Est. 1999 • Trust B • Hiring 7
HQ: London, United Kingdom • Scheduling & Booking Software • HR & Payroll Software • 5000+ employees • Est. 1999 • Trust B • Hiring 7
Fourth is a London software company founded in 1999 that supplies workforce and inventory management to hospitality operators. Its platform handles scheduling, payroll, purchasing and recipe costing for restaurant, hotel and pub groups. The company serves tens of thousands of venues across Europe and North America.
side.inc • HQ: Tokyo, Japan • PC Games • 501-1000 employees • Est. 1994 • Trust A • Hiring 69, 8 new
HQ: Tokyo, Japan • PC Games • 501-1000 employees • Est. 1994 • Trust A • Hiring 69, 8 new
Side is a Tokyo games services company that provides quality assurance, localisation and audio production for the industry. Formerly known as Pole To Win, it operates studios across Asia, Europe and the Americas for major publishers. The company handles testing and player support at very large scale.
abacustechnology.com • HQ: New York, United States • Managed Security • Managed IT Services (MSP) • Est. 2004 • Hiring 46, 3 new
HQ: New York, United States • Managed Security • Managed IT Services (MSP) • Est. 2004 • Hiring 46, 3 new
Abacus Technology is a New York-based managed IT and cybersecurity provider serving financial services firms, hedge funds, private equity firms and healthcare organisations. Operating since 2004, it combines IT operations, multi-cloud management, cybersecurity and incident response, and reports more than 1,200 clients, over 100,000 managed users and coverage in 25 countries, with a UK network engineering team serving clients in Europe. It hires service desk analysts, site services technicians, NOC analysts and engineers, systems, network and professional services engineers, software engineers, project managers and finance and client experience staff.
