Backend Developer jobs in United Kingdom hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $170,197/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
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8,978 remote jobs are open to candidates in United Kingdom.Show remote jobs
tailscale.com · HQ: Toronto, Canada · VPN & Proxy Services · Network Security · 501-1000 employees · Est. 2019 · Startup · Trust A · Hiring 54, 2 new
HQ: Toronto, Canada · VPN & Proxy Services · Network Security · 501-1000 employees · Est. 2019 · Startup · Trust A · Hiring 54, 2 new
Tailscale is a technology company that provides a zero-config mesh VPN service designed to simplify secure networking for individuals and enterprises. Founded in 2019 by former Google engineers and headquartered in Toronto, Canada, the company builds its solution on the open-source WireGuard protocol to establish direct, end-to-end encrypted connections between devices. Its identity-driven platform eliminates the complexity of traditional networking infrastructure, allowing users to safely connect devices, multi-cloud workloads, and remote teams without managing firewall rules or port forwarding.
pelagohealth.com · HQ: New York, United States · Health Care · Health Insurance & Benefits · Telemedicine & Virtual Care · Addiction Treatment · Est. 2017 · Startup · Trust A · Hiring 10, 2 new
HQ: New York, United States · Health Care · Health Insurance & Benefits · Telemedicine & Virtual Care · Addiction Treatment · Est. 2017 · Startup · Trust A · Hiring 10, 2 new
Pelago is a New York digital health company founded in 2017 that treats substance use, including tobacco, alcohol and opioids. Its programme combines clinicians, medication and behavioural therapy delivered through an app. The company sells to employers and health plans and publishes clinical outcome data.
simplemachines.com · London · Sydney · Christchurch · Liverpool · Data Engineering & Migration Services · Analytics & BI Consulting · Trust A · Hiring 13
London · Sydney · Christchurch · Liverpool · Data Engineering & Migration Services · Analytics & BI Consulting · Trust A · Hiring 13
We're a specialist firm of expert consultants, data architects and engineers building the next generation of data driven organisations.
lyst.com · HQ: London, United Kingdom · Luxury Retail · Marketplaces · 51-200 employees · Est. 2010 · Hiring 9, 1 new
HQ: London, United Kingdom · Luxury Retail · Marketplaces · 51-200 employees · Est. 2010 · Hiring 9, 1 new
Lyst is a global fashion shopping platform that brings premium and luxury fashion from about 27,000 brands and stores into one place, serving over 160 million shoppers a year. It became part of Zozo, the operator of Zozotown, in 2025 and hires customer operations, partner sales, business development and analytics staff. The company is headquartered in London, United Kingdom.
sportradar.com · HQ: Sankt Gallen, Switzerland · iGaming & Gambling · Sports · Sports Betting · Sports Analytics · Fan Engagement · 1001-5000 employees · Est. 2001 · Trust B · Hiring 86, 20 new
HQ: Sankt Gallen, Switzerland · iGaming & Gambling · Sports · Sports Betting · Sports Analytics · Fan Engagement · 1001-5000 employees · Est. 2001 · Trust B · Hiring 86, 20 new
Sportradar is a Swiss company founded in 2001 that collects live sports data and sells it to betting operators, media companies and sports leagues, and it holds exclusive rights to distribute data from the NBA, NHL, ATP and many other competitions. Its business is a licensing chain: it pays leagues for official data rights, sends people to capture the feed reliably from the venue, and resells it to bookmakers who cannot price in-play markets without it. Headquartered in Sankt Gallen and listed on Nasdaq, it also operates integrity services that monitor betting patterns for match-fixing on behalf of federations.
lumentum.com · HQ: San Jose, United States · Optical Communications · Lasers & Laser Systems · Optics & Photonic Components · 1001-5000 employees · Est. 2015 · Trust B · Hiring 195, 14 new
HQ: San Jose, United States · Optical Communications · Lasers & Laser Systems · Optics & Photonic Components · 1001-5000 employees · Est. 2015 · Trust B · Hiring 195, 14 new
Lumentum is an American photonics company separated from JDS Uniphase in 2015 that makes the optical components carrying data through networks and between data centre systems. Its business has been transformed by artificial intelligence build-out: the optical transceivers and laser components that connect accelerators inside a cluster are now in far shorter supply than the networking equipment they plug into. Headquartered in San Jose and listed on Nasdaq, it also supplies industrial and consumer lasers, and it acquired Cloud Light in 2023 specifically to add high-speed transceiver manufacturing capacity for cloud customers.
brain.co · HQ: San Francisco, United States · AI Consulting & Integration · AI Agents · Startup · Trust A · Hiring 44, 5 new
HQ: San Francisco, United States · AI Consulting & Integration · AI Agents · Startup · Trust A · Hiring 44, 5 new
Brain Co. is an American AI company that builds agent-native operating systems for large, regulated institutions, with each system built for a specific industry. Its systems run on Atlas, a proprietary platform that keeps customers in control and avoids lock-in to one model, and it hires AI platform, ML, product and security engineers. The company is headquartered in San Francisco, California, United States.
hammermissions.com · HQ: London, United Kingdom · Drone AI · Computer Vision · Startup · Hiring 1
HQ: London, United Kingdom · Drone AI · Computer Vision · Startup · Hiring 1
AI inspection software for engineering firms and asset owners. Capture with drones or 3D Lidar, detect defects with AI, and produce defensible condition reports.
accurx.com · HQ: London, United Kingdom · Telemedicine & Virtual Care · Patient Access & Booking · 201-500 employees · Est. 2016 · Startup · Trust A · Hiring 11
HQ: London, United Kingdom · Telemedicine & Virtual Care · Patient Access & Booking · 201-500 employees · Est. 2016 · Startup · Trust A · Hiring 11
Accurx is a London company founded in 2016 that builds communication software for the National Health Service. Its tools let general practices and hospitals message patients, run video consultations and coordinate between care teams. The software is used by almost every general practice in England.
dataintellect.com · HQ: Belfast, United Kingdom · IT Consulting & Digital Transformation · Data Engineering & Migration Services · Est. 2012 · Trust A · Hiring 21, 2 new
HQ: Belfast, United Kingdom · IT Consulting & Digital Transformation · Data Engineering & Migration Services · Est. 2012 · Trust A · Hiring 21, 2 new
Every question matters, every pathway, direction, thought process and conversation. Because every challenge makes us stronger, more knowledgeable, more determined and more valuable to our clients.
worldquant.com · HQ: Old Greenwich, United States · Hedge Funds & Alternative Investments · 1001-5000 employees · Est. 2007 · Trust B · Hiring 83
HQ: Old Greenwich, United States · Hedge Funds & Alternative Investments · 1001-5000 employees · Est. 2007 · Trust B · Hiring 83
Headquartered in Old Greenwich, Connecticut, WorldQuant is a global quantitative investment management firm and hedge fund. The company develops and deploys systematic trading strategies, predictive algorithmic signals ("alphas"), and data-driven portfolio management models across global equity and financial markets. By combining advanced machine learning, massive financial datasets, and a distributed international network of quantitative researchers, it systematically identifies market inefficiencies to generate consistent, risk-adjusted investment returns.
unmind.com · HQ: London, United Kingdom · HR & Payroll Software · Digital Mental Health · 51-200 employees · Est. 2016 · Startup · Hiring 2, 1 new
HQ: London, United Kingdom · HR & Payroll Software · Digital Mental Health · 51-200 employees · Est. 2016 · Startup · Hiring 2, 1 new
Unmind provides a B2B mental health platform that delivers clinically-backed tools and training for organisations. Unmind is based out of London, United Kingdom.
9fin.com · HQ: London, United Kingdom · Financial AI · Financial Data & Market Intelligence · 201-500 employees · Est. 2016 · Trust B · Hiring 31, 3 new
HQ: London, United Kingdom · Financial AI · Financial Data & Market Intelligence · 201-500 employees · Est. 2016 · Trust B · Hiring 31, 3 new
9fin is a financial technology company headquartered in London, United Kingdom, and was founded in 2016. The company provides an AI-powered intelligence platform for the debt capital markets, offering real-time news, data, and analytics on leveraged finance, private credit, and distressed debt. It serves global investment banks, asset managers, hedge funds, and law firms, operating primarily in the European and North American financial markets.
edenred.com · HQ: Issy-les-Moulineaux, France · Gift Cards & Loyalty Programs · Human Resources · Payment Processing & Gateways · Cards & Card Issuing · 5000+ employees · Est. 2010 · Trust A · Hiring 213, 9 new
HQ: Issy-les-Moulineaux, France · Gift Cards & Loyalty Programs · Human Resources · Payment Processing & Gateways · Cards & Card Issuing · 5000+ employees · Est. 2010 · Trust A · Hiring 213, 9 new
Edenred is a French company separated from the hospitality group Accor in 2010, and it operates the meal voucher and employee benefit schemes that tax rules in many countries make worth using. Its business is built on float and network effects: employers prepay for benefits, employees spend them at affiliated merchants, and the company earns commission from merchants and fees from employers while holding the balances in between. Headquartered near Paris and listed on Euronext, it also runs fuel and fleet payment cards and corporate payment services across some forty-five countries.
ptc.com · HQ: Boston, United States · Field Service Management Software · AR & VR Software · Industrial IoT (IIoT) · CAD, PLM & BIM Software · 5000+ employees · Est. 1985 · Trust A · Hiring 106, 6 new
HQ: Boston, United States · Field Service Management Software · AR & VR Software · Industrial IoT (IIoT) · CAD, PLM & BIM Software · 5000+ employees · Est. 1985 · Trust A · Hiring 106, 6 new
PTC Inc. is a global software and services company headquartered in Boston, Massachusetts, and founded in 1985. The company develops a suite of technology solutions including computer-aided design (CAD), product lifecycle management (PLM), industrial internet of things (IIoT), and augmented reality (AR) platforms. It serves over 30,000 customers worldwide, primarily in the discrete manufacturing, aerospace, and defense sectors, and is publicly traded on the NASDAQ under the ticker symbol PTC.
alphasights.com · New York · Dubai · San Francisco · Tokyo · Shanghai · Market Research · Management Consulting · 201-500 employees · Est. 2008 · Trust A · Hiring 22
New York · Dubai · San Francisco · Tokyo · Shanghai · Market Research · Management Consulting · 201-500 employees · Est. 2008 · Trust A · Hiring 22
AlphaSights is the global leader in knowledge on-demand. We provide frictionless access to the expert insights that matter.
coretech-security.com · HQ: Cheltenham, United Kingdom · Information Security · Cybersecurity · 1-10 employees · Startup · Trust B · Hiring 9
HQ: Cheltenham, United Kingdom · Information Security · Cybersecurity · 1-10 employees · Startup · Trust B · Hiring 9
As a leading cyber security research company, CoreTech understands this environment. We are endlessly researching and building capabilities at the pace our customers need to stay ahead.
sectra.com · HQ: Linköping, Sweden · Information Security · Medical Imaging Systems · 1001-5000 employees · Est. 1978 · Trust B · Hiring 53, 4 new
HQ: Linköping, Sweden · Information Security · Medical Imaging Systems · 1001-5000 employees · Est. 1978 · Trust B · Hiring 53, 4 new
Sectra is a Swedish technology company founded in 1978 and based in Linkoping. It develops medical imaging systems and secure communications for governments. The company is listed on Nasdaq Stockholm.
nous.co · HQ: London, United Kingdom · Personal Finance Apps & Education · 1-10 employees · Startup · Trust B · Hiring 8, 2 new
HQ: London, United Kingdom · Personal Finance Apps & Education · 1-10 employees · Startup · Trust B · Hiring 8, 2 new
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