Backend Developer jobs in London hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $213,465/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
homey.co.uk • London • Colombo • Wolverhampton • Crawley • PropTech • Real Estate Brokerage • Trust B • Hiring 23
London • Colombo • Wolverhampton • Crawley • PropTech • Real Estate Brokerage • Trust B • Hiring 23
Unlock faster property transactions with Homey. We connect Estate Agents, Solicitors, and clients for better communication and visibility. Specialised tools for each team ensure seamless workflows and a client portal for full transaction visibility.
eucalyptus.health • HQ: Sydney, Australia • Women’s Health & Maternity • Telemedicine & Virtual Care • 501-1000 employees • Est. 2019 • Trust B • Hiring 70, 3 new
HQ: Sydney, Australia • Women’s Health & Maternity • Telemedicine & Virtual Care • 501-1000 employees • Est. 2019 • Trust B • Hiring 70, 3 new
Eucalyptus is a telehealth company that runs a group of digital healthcare clinics, treating patients on its own platform with clinician-led care and medication delivered to the door. Its brands include Juniper for weight management and menopause, Pilot for men's health, Kin for fertility and reproductive care and Software for dermatology, supported by prescribers, nurses, pharmacists, dietitians and health coaches. Founded in 2019 in Sydney, it now treats patients in Australia, the United Kingdom, Germany and Japan, and has become part of Hims & Hers.
zopa.com • HQ: London, United Kingdom • Crowdfunding & P2P Lending • Cards & Card Issuing • Consumer Loans & Pawnshops • Digital Banks & Neobanks • 501-1000 employees • Est. 2004 • Trust A • Hiring 34, 4 new
HQ: London, United Kingdom • Crowdfunding & P2P Lending • Cards & Card Issuing • Consumer Loans & Pawnshops • Digital Banks & Neobanks • 501-1000 employees • Est. 2004 • Trust A • Hiring 34, 4 new
Zopa is a British digital bank that began in 2005 as the world's first peer-to-peer lending platform and received a full UK banking licence in 2020. It offers personal loans, car finance, credit cards and fixed-term and easy-access savings accounts through its mobile app, and serves more than a million customers. The company is headquartered in London, United Kingdom.
langfuse.com • HQ: San Francisco, United States • AI Evaluation & Observability • 11-50 employees • Est. 2022 • Trust B • Hiring 6
HQ: San Francisco, United States • AI Evaluation & Observability • 11-50 employees • Est. 2022 • Trust B • Hiring 6
Trace, evaluate, and improve AI agents with one open platform. Use production data to understand behavior, collaborate on fixes, and ship better quality at lower cost and latency.
anza.xyz • HQ: San Francisco, United States • Developer Tools • Blockchain Infrastructure • Est. 2024 • Hiring 2
HQ: San Francisco, United States • Developer Tools • Blockchain Infrastructure • Est. 2024 • Hiring 2
Anza is a software engineering and R&D firm dedicated to building core infrastructure, protocols, and developer tools for the Solana blockchain ecosystem. Founded in 2024 by executives and core engineers from Solana Labs, the firm focuses on enhancing network performance, reliability, and decentralization. Its major contributions include the Agave validator client - a major client fork designed to optimize block propagation and reduce latency - alongside core SDKs, token extension protocols, and infrastructure tooling for decentralized application developers.
$180k – $300k per year • Senior • New York • San Francisco • Zurich • London • Remote (United States, United Kingdom, Switzerland) • Full-Time • Senior
$180k – $300k per year • Senior • New York • San Francisco • Zurich • London • Remote (United States, United Kingdom, Switzerland) • Full-Time • Senior
Polaron connects process, structure, and performance using AI and image data to accelerate how materials are characterised, designed, and manufactured.
artificial.io • HQ: London, United Kingdom • InsurTech • 51-200 employees • Est. 2013 • Startup • Trust B • Hiring 8
HQ: London, United Kingdom • InsurTech • 51-200 employees • Est. 2013 • Startup • Trust B • Hiring 8
Artificial Labs builds digital underwriting software for specialty insurance. Its platform structures submissions and applies pricing models automatically. The company works with Lloyd's market participants.
HQ: London, United Kingdom • Data Integration & ETL Tools • Intranet & Knowledge Management • Knowledge Graphs • 51-200 employees • Startup • Trust A • Hiring 14
HASH is a software company that develops an open-source workspace for structured knowledge, where teams integrate live data from external sources, define shared types and ontologies, and build a knowledge graph of entities they can query and edit together. It also offers AI agents that extract structured information into the graph. The company is headquartered in London, England, United Kingdom.
try.be • HQ: London, United Kingdom • Scheduling & Booking Software • Est. 2020 • Startup • Hiring 1
HQ: London, United Kingdom • Scheduling & Booking Software • Est. 2020 • Startup • Hiring 1
TRYBE is the best operational and online booking system for spa, leisure, and activities. A slick booking system that automates bookings and boosts revenue.
abtrace.com • HQ: London, United Kingdom • Machine Learning • Care Coordination & Population Health • 51-200 employees • Startup • Trust A • Hiring 12
HQ: London, United Kingdom • Machine Learning • Care Coordination & Population Health • 51-200 employees • Startup • Trust A • Hiring 12
Abtrace is a health tech company based in London, with a team of doctors, researchers, developers and data scientists that bring together software engineering, machine learning expertise and medical experience to build clinical algorithms to support primary care clinicians. The team is dedicated to creating digital health software to deliver Population Health interventions individualized to patients. This involves the continuous scanning of the entire health record of a patient to detect signals of deterioration, early onset of new disease and opportunities for preventative interventions.
dataintellect.com • HQ: Belfast, United Kingdom • IT Consulting & Digital Transformation • Data Engineering & Migration Services • 201-500 employees • Est. 2012 • Trust D • Hiring 26, 1 new
HQ: Belfast, United Kingdom • IT Consulting & Digital Transformation • Data Engineering & Migration Services • 201-500 employees • Est. 2012 • Trust D • Hiring 26, 1 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.
margo.com • HQ: Courbevoie, France • IT Staffing & Staff Augmentation • IT Consulting & Digital Transformation • 11-50 employees • Est. 2005 • Staffing · EOR • Trust A • Hiring 50
HQ: Courbevoie, France • IT Staffing & Staff Augmentation • IT Consulting & Digital Transformation • 11-50 employees • Est. 2005 • Staffing · EOR • Trust A • Hiring 50
Margo is a Paris-based technology engineering and AI consulting group that provides specialist consultants in data, cloud, software engineering and capital markets technology, mainly to banks, insurers and industrial clients. Founded in 2005, it has about 450 staff across Paris, London and an engineering center in Warsaw, reported turnover of 45 million euros in 2025 and runs practices such as Capital Market Technologies, Cloud Transformation and Software Engineering. It hires C#, Java and Python developers, front-office support engineers, quant developers, business analysts, data and DevOps engineers and business developers.
catonetworks.com • HQ: Tel Aviv, Israel • Network Security • Cloud Security • 501-1000 employees • Est. 2015 • Trust B • Hiring 106, 6 new
HQ: Tel Aviv, Israel • Network Security • Cloud Security • 501-1000 employees • Est. 2015 • Trust B • Hiring 106, 6 new
Cato Networks is an Israeli cybersecurity company, founded in 2015, that provides a cloud-native secure access service edge (SASE) platform. Its global private backbone combines SD-WAN networking with security services such as firewall as a service, secure web gateway, zero trust network access, cloud access security broker and data loss prevention, sold to enterprises largely through channel partners. The company is headquartered in Tel Aviv, Israel.
first.cx • New York • London • Tokyo • Software • Professional Services • Recruiting Software & ATS • 201-500 employees • Likely startup • Trust B • Hiring 9
New York • London • Tokyo • Software • Professional Services • Recruiting Software & ATS • 201-500 employees • Likely startup • Trust B • Hiring 9
First.cx is the AI hiring platform for industry-leading teams. Intelligent candidate screening, fair assessment, and a first-class candidate experience. Deploy in minutes.
boltz.com • HQ: London, United Kingdom • Drug Discovery AI • Drug Discovery • 201-500 employees • Est. 2024 • Startup • Trust D • Hiring 13
HQ: London, United Kingdom • Drug Discovery AI • Drug Discovery • 201-500 employees • Est. 2024 • Startup • Trust D • Hiring 13
Boltz is a public benefit company building AI-powered molecular modeling tools to make biology programmable and accelerate drug discovery. Its open models Boltz-1, Boltz-2 and BoltzGen are used by more than 100,000 scientists across biotech and academia. The company is headquartered in London, United Kingdom.
csdisco.com • HQ: Austin, United States • Legal Software • Legal AI • 201-500 employees • Est. 2013 • Trust B • Hiring 36
HQ: Austin, United States • Legal Software • Legal AI • 201-500 employees • Est. 2013 • Trust B • Hiring 36
DISCO is an American legal technology company founded in 2013 that provides cloud software for ediscovery, document review and case management to law firms, corporate legal departments and government agencies. Its platform uses AI to process, search and review large volumes of litigation data, and it also offers managed review services. The company is listed on the New York Stock Exchange and is headquartered in Austin, Texas, United States.
incard.com • HQ: London, United Kingdom • Supply Chain • Mobile Games • Commerce • Cards & Card Issuing • Digital Banks & Neobanks • 51-200 employees • Est. 2020 • Startup • Trust D • Hiring 13
HQ: London, United Kingdom • Supply Chain • Mobile Games • Commerce • Cards & Card Issuing • Digital Banks & Neobanks • 51-200 employees • Est. 2020 • Startup • Trust D • Hiring 13
Banking, cards, cashflow, capital and treasury with cashback on every pound you spend running the business. Built for ecommerce, AI companies, agencies and creators.
