Backend Developer jobs in London hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $190,840/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
viasat.com · HQ: Carlsbad, United States · C4ISR · Space & Aerospace · Telecommunications · Mobile Networks · Satellite Communications · 201-500 employees · Trust B · Hiring 236, 22 new
HQ: Carlsbad, United States · C4ISR · Space & Aerospace · Telecommunications · Mobile Networks · Satellite Communications · 201-500 employees · Trust B · Hiring 236, 22 new
Headquartered in Carlsbad, California, Viasat is a global communications company specializing in high-speed satellite broadband, secure networking, and defense communications services. The company designs, builds, and operates an advanced network of high-capacity satellites to deliver reliable connectivity to residential, commercial, aviation, and government users worldwide. Following its acquisition of Inmarsat, its expanded portfolio now spans global mobile satellite services, maritime communications, and critical national security infrastructure.
legora.com · HQ: Stockholm, Sweden · Legal Software · Document AI · Legal AI · 1001-5000 employees · Est. 2023 · Trust A · Hiring 303, 12 new
HQ: Stockholm, Sweden · Legal Software · Document AI · Legal AI · 1001-5000 employees · Est. 2023 · Trust A · Hiring 303, 12 new
Legora is a Swedish company founded in 2023 that builds artificial intelligence tools for lawyers, and it has grown unusually fast for a European enterprise software company in a market dominated by American incumbents. Its products handle document review, drafting, research and diligence inside the environments lawyers already work in, and it is designed for collaborative use so that a partner can see and correct what the system produced rather than receiving an opaque answer. Headquartered in Stockholm and valued in the billions within two years, it works with international law firms and in-house legal teams across Europe and the United States.
anemoimarine.com · HQ: London, United Kingdom · Wind Energy · Sea Freight · Startup · Hiring 3
HQ: London, United Kingdom · Wind Energy · Sea Freight · Startup · Hiring 3
Global leaders in wind assisted ship propulsion. Installing Flettner Rotor Sails can reduce EEDI scores and help achieve IMO 2030 and 2050 decarbonisation targets.
justpark.com · HQ: Dallas, United States · Marketplaces · Smart Mobility · 51-200 employees · Est. 2019 · Startup · Hiring 5
HQ: Dallas, United States · Marketplaces · Smart Mobility · 51-200 employees · Est. 2019 · Startup · Hiring 5
Find parking, wherever and whenever you need it, online or via the JustPark app. Reserve a space at over 45,000 locations. Trusted by 10 million drivers.
shield.ai · HQ: San Diego, United States · Defense Manufacturing · Drone AI · Defense AI · Military Drones · 1001-5000 employees · Est. 2015 · Trust B · Hiring 623, 12 new
HQ: San Diego, United States · Defense Manufacturing · Drone AI · Defense AI · Military Drones · 1001-5000 employees · Est. 2015 · Trust B · Hiring 623, 12 new
Shield AI is an American defence technology company founded in 2015 that builds autonomy software and uncrewed aircraft for military missions. Its Hivemind autonomy stack lets aircraft fly, navigate and complete objectives without GPS, a remote pilot or a communications link, which matters in contested environments where those links are jammed. Headquartered in San Diego, California, the company fields the V-BAT vertical take-off aircraft with United States and allied forces, licenses Hivemind to other manufacturers and is developing the X-BAT jet for high-end missions.
aave.com · HQ: London, United Kingdom · Cryptocurrencies · DeFi · 11-50 employees · Est. 2017 · Startup · Trust B · Hiring 13, 1 new
HQ: London, United Kingdom · Cryptocurrencies · DeFi · 11-50 employees · Est. 2017 · Startup · Trust B · Hiring 13, 1 new
Aave is a decentralised lending protocol, developed by the London-based company Avara, that lets users supply crypto assets to earn yield and borrow against them without an intermediary. Started in 2017 as the peer-to-peer lender ETHLend and relaunched under its current name in 2018, the protocol pioneered variable and stable interest rate markets, flash loans and cross-chain liquidity pools. Governance sits with holders of the AAVE token, and the wider Avara portfolio now also includes the GHO stablecoin, the Lens social protocol and consumer wallet products.
commercetools is a Munich company founded in 2006 that builds a composable commerce platform delivered entirely through interfaces. Its approach lets retailers assemble checkout, catalogue and pricing services rather than buying a monolithic suite. The company works with global brands and helped define the composable architecture movement in retail technology.
bauermediaoutdoor.co.uk · HQ: London, United Kingdom · Advertising · 501-1000 employees · Hiring 8, 1 new
HQ: London, United Kingdom · Advertising · 501-1000 employees · Hiring 8, 1 new
Bauer Media Outdoor is a UK out-of-home advertising company with digital advertising platforms and more than 33,000 advertising sites across the UK and Europe. It is part of the Bauer Media Group, and its vacancies include product owners, posting and cleaning operatives and warehouse staff. The company is headquartered in London, United Kingdom.
prolific.com · HQ: London, United Kingdom · AI Research Labs · LLM & Generative AI · Artificial Intelligence · Market Research · AI Training Data & Annotation · 51-200 employees · Est. 2014 · Startup · Trust B · Hiring 27, 3 new
HQ: London, United Kingdom · AI Research Labs · LLM & Generative AI · Artificial Intelligence · Market Research · AI Training Data & Annotation · 51-200 employees · Est. 2014 · Startup · Trust B · Hiring 27, 3 new
Prolific is a British research technology company founded in 2014 by Oxford researchers that connects scientists, businesses and AI developers with a vetted pool of paid human participants. Its platform handles recruitment, demographic targeting, fair-pay enforcement, fraud screening and payment so studies return usable data instead of bot or duplicate responses. Originally built for academic behavioural research, the company now also supplies human feedback, preference data and evaluation for machine learning teams, and is headquartered in London with a large United States presence.
ef.com · HQ: Lucerne, Switzerland · Travel Agencies · Higher Education · Language Learning · 1001-5000 employees · Est. 1965 · Trust B · Hiring 172, 23 new
HQ: Lucerne, Switzerland · Travel Agencies · Higher Education · Language Learning · 1001-5000 employees · Est. 1965 · Trust B · Hiring 172, 23 new
EF Education First is an international education company founded in 1965 that runs language schools, educational tours, academic exchange programs, au pair and gap year programs and corporate language training. It operates schools and offices in more than 100 countries, with large teams in Boston, Zurich, London and São Paulo, and hires sales consultants, coordinators and digital marketing staff. The company is headquartered in Lucerne, Switzerland.
morganstanley.com · HQ: New York, United States · Online Brokerage & Trading Platforms · Asset Management & Funds · Wealth Management & Financial Advisors · Investment Banking & M&A Advisory · 5000+ employees · Est. 1935 · NYSE: MS · Trust A · Hiring 688, 22 new
HQ: New York, United States · Online Brokerage & Trading Platforms · Asset Management & Funds · Wealth Management & Financial Advisors · Investment Banking & M&A Advisory · 5000+ employees · Est. 1935 · NYSE: MS · Trust A · Hiring 688, 22 new
Headquartered in New York City, New York, Morgan Stanley is a multinational investment bank and financial services enterprise. The firm operates across three primary business divisions: Institutional Securities, Wealth Management, and Investment Management - offering services such as mergers and acquisitions advisory, equity and debt underwriting, sales and trading, market research, and asset management. Managing trillions of dollars in client assets across dozens of countries, it serves corporations, governments, financial institutions, and individuals as a primary liquidity provider and core market maker in global capital markets.
vanguard.com · HQ: Malvern, United States · Wealth Management & Financial Advisors · Online Brokerage & Trading Platforms · Asset Management & Funds · 1001-5000 employees · Est. 1975 · Trust B · Hiring 279, 45 new
HQ: Malvern, United States · Wealth Management & Financial Advisors · Online Brokerage & Trading Platforms · Asset Management & Funds · 1001-5000 employees · Est. 1975 · Trust B · Hiring 279, 45 new
The Vanguard Group is an American investment manager founded in 1975 that pioneered the retail index fund and is now one of the two largest asset managers in the world. It is owned by the funds it runs, and therefore by their shareholders, a mutual structure that lets it push management fees toward zero and has reshaped pricing across the whole industry. From Malvern in Pennsylvania it operates mutual funds, exchange traded funds, brokerage, retirement plan administration and advice services for tens of millions of individual and institutional clients.
arrive.com · HQ: Stockholm, Sweden · Public Transport · Smart Mobility · 51-200 employees · Est. 1955 · Trust A · Hiring 64, 7 new
HQ: Stockholm, Sweden · Public Transport · Smart Mobility · 51-200 employees · Est. 1955 · Trust A · Hiring 64, 7 new
Arrive is an urban mobility technology company headquartered in Stockholm that provides digital parking payments, parking meters and operator software, EV charging payments, mobility data and public transport ticketing to cities, businesses and drivers. Its brands include EasyPark, Flowbird, RingGo, ParkMobile and Parkopedia, it operates in more than 90 countries and 20,000 cities, traces its roots to parking meters first installed in Sweden in 1955, and is backed by Verdane, Vitruvian Partners and Searchlight Capital. It hires software, backend, data and DevOps engineers, data scientists, payments product managers, designers, risk analysts and B2B account and customer experience managers.
incident.io · HQ: London, United Kingdom · DevOps & Platform Engineering · Incident Response · 201-500 employees · Est. 2021 · Startup · Trust B · Hiring 37, 3 new
HQ: London, United Kingdom · DevOps & Platform Engineering · Incident Response · 201-500 employees · Est. 2021 · Startup · Trust B · Hiring 37, 3 new
incident.io is a software reliability platform company founded in London in 2021 that unifies on-call scheduling, incident response, AI-driven root cause analysis and status pages, with workflows that run inside Slack and Microsoft Teams. It reports more than 2,000 customers, including OpenAI, Netflix, Airbnb and Etsy, has raised over $100 million from investors such as Index Ventures and Insight Partners, and runs offices in London, San Francisco, New York and Boston. It hires product engineers and interns, account executives, business development representatives, customer success managers and engineers and technical support engineers.
alpha-sense.com · HQ: New York, United States · Market Research · Financial AI · AI Search · Financial Data & Market Intelligence · 1001-5000 employees · Est. 2011 · Trust B · Hiring 172, 10 new
HQ: New York, United States · Market Research · Financial AI · AI Search · Financial Data & Market Intelligence · 1001-5000 employees · Est. 2011 · Trust B · Hiring 172, 10 new
AlphaSense is a market intelligence company founded in 2011 that indexes company filings, earnings call transcripts, broker research, regulatory documents and news, and lets analysts search across all of it at once. Its differentiator is search that understands financial language and synonyms rather than matching keywords, layered with generative summarisation, and it also owns the expert call network Stream, which adds transcripts of interviews with industry specialists. Headquartered in New York and privately held at a multi-billion dollar valuation, it sells mainly to investment firms, corporate strategy teams and consultancies.
unity.com · HQ: San Francisco, United States · Advertising · AR & VR Software · Developer Tools · Game Development · 1001-5000 employees · Est. 2004 · Trust A · Hiring 136, 15 new
HQ: San Francisco, United States · Advertising · AR & VR Software · Developer Tools · Game Development · 1001-5000 employees · Est. 2004 · Trust A · Hiring 136, 15 new
Headquartered in San Francisco, California, Unity Software Inc. (Unity Technologies) is a technology enterprise specializing in real-time 3D (RT3D) content development software and engine solutions. The company provides an integrated platform that enables developers, creators, and engineers to build, run, and monetize interactive 2D, 3D, virtual reality (VR), and augmented reality (AR) experiences across mobile, console, PC, and spatial computing hardware. By combining cross-platform runtime engines with developer services, cloud tools, and advertising monetization networks, it serves as a core infrastructure provider for the global gaming industry as well as industrial sectors such as automotive, architecture, and film production.
catapult.xyz · HQ: London, United Kingdom · AI Agents · Startup · Hiring 2
HQ: London, United Kingdom · AI Agents · Startup · Hiring 2
Catapult is the AI agent for ambitious knowledge work. It deeply understands you and your work across email, messages, meetings, documents and tools so it can handle ambitious knowledge work end to end.
zincwork.com · HQ: London, United Kingdom · Human Resources · 51-200 employees · Est. 2017 · Startup · Hiring 12, 1 new
HQ: London, United Kingdom · Human Resources · 51-200 employees · Est. 2017 · Startup · Hiring 12, 1 new
Zinc is a London technology company founded in 2017 that automates employment background checks. Its platform collects references and verifications with the candidate's consent and returns results faster than manual screening. The company works with technology employers and staffing firms across Europe and North America.
rvu.co.uk · HQ: London, United Kingdom · Financial Comparison & Loan Marketplaces · Price Comparison · 201-500 employees · Est. 2018 · Likely startup · Hiring 11, 1 new
HQ: London, United Kingdom · Financial Comparison & Loan Marketplaces · Price Comparison · 201-500 employees · Est. 2018 · Likely startup · Hiring 11, 1 new
RVU is a London company that owns the comparison and switching brands Uswitch, Money.co.uk, Tempcover and Bankrate UK. Its platforms help consumers compare energy, broadband, insurance and financial products and complete the switch online. The group was formed in 2018 when ZPG separated its comparison businesses from its property portals.
