Backend Developer jobs in Belfast hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $88,581/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
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bt.com • HQ: London, United Kingdom • Telecommunications • Broadband • 5000+ employees • Est. 2001 • Trust A • Hiring 83, 31 new
HQ: London, United Kingdom • Telecommunications • Broadband • 5000+ employees • Est. 2001 • Trust A • Hiring 83, 31 new
BT Group is the largest telecommunications provider in the United Kingdom, with roots in the electric telegraph company founded in 1846. It runs consumer broadband and mobile through EE, enterprise networking and the Openreach access network. The company employs tens of thousands of engineers and operates one of the biggest research sites in Britain at Adastral Park.
kainos.com • HQ: Belfast, United Kingdom • Custom Software Development • IT Consulting & Digital Transformation • 1001-5000 employees • Est. 1986 • Trust B • Hiring 84, 6 new
HQ: Belfast, United Kingdom • Custom Software Development • IT Consulting & Digital Transformation • 1001-5000 employees • Est. 1986 • Trust B • Hiring 84, 6 new
Kainos is a Belfast technology company founded in 1986 that delivers digital services and Workday implementations. It has built many of the digital services used by British government departments and health bodies. The company also develops the Smart Test automation product for Workday customers worldwide.
globalpayments.com • HQ: Atlanta, United States • POS Systems • Cards & Card Issuing • Payment Processing & Gateways • 1001-5000 employees • Est. 2000 • NYSE: GPN • Trust A • Hiring 369, 55 new
HQ: Atlanta, United States • POS Systems • Cards & Card Issuing • Payment Processing & Gateways • 1001-5000 employees • Est. 2000 • NYSE: GPN • Trust A • Hiring 369, 55 new
Global Payments is an American payments company founded in 2000 that processes card transactions for merchants and provides the software many of those merchants run their businesses on. Its merchant solutions business spans acquiring, terminals and integrated point-of-sale systems for restaurants, retail and healthcare, and it also operates an issuer solutions business that runs card programmes on behalf of banks under the TSYS brand. Headquartered in Atlanta and listed on the New York Stock Exchange, it has grown through a long sequence of acquisitions and reshaped its portfolio through asset swaps with other payment groups.
citi.com • HQ: New York, United States • Cards & Card Issuing • Payment Processing & Gateways • Wealth Management & Financial Advisors • Investment Banking & M&A Advisory • Commercial & Retail Banks • 5000+ employees • Est. 1812 • Trust A • Hiring 3059, 241 new
HQ: New York, United States • Cards & Card Issuing • Payment Processing & Gateways • Wealth Management & Financial Advisors • Investment Banking & M&A Advisory • Commercial & Retail Banks • 5000+ employees • Est. 1812 • Trust A • Hiring 3059, 241 new
Citi is one of the largest banks in the world, tracing its lineage to the City Bank of New York founded in 1812 and taking its modern shape through the 1998 merger that created Citigroup. Its most distinctive asset is a cross-border payments and treasury network unmatched by any competitor, moving trillions of dollars a day for multinational corporations, governments and other banks across roughly ninety countries. Alongside that institutional franchise it runs markets and investment banking, wealth management and a United States personal bank, and has spent recent years simplifying itself by exiting consumer operations across Asia, Europe and Latin America.
liberty-it.co.uk • HQ: Belfast, United Kingdom • IT Consulting & Digital Transformation • Custom Software Development • 5000+ employees • Est. 1996 • Hiring 5, 3 new
HQ: Belfast, United Kingdom • IT Consulting & Digital Transformation • Custom Software Development • 5000+ employees • Est. 1996 • Hiring 5, 3 new
Founded in 1996, Liberty IT is a software engineering and digital transformation company that serves as the dedicated technology hub for Liberty Mutual Insurance. Headquartered in Belfast, Northern Ireland, the firm specializes in cloud architecture, artificial intelligence, data engineering, and enterprise software solutions. Operating across multiple hubs in the UK and Ireland, the organization builds scalable platforms that drive global insurance operations and enhance digital customer experiences.
tpicap.com • HQ: London, United Kingdom • Financial Data & Market Intelligence • Stock Exchanges & Market Infrastructure • 1001-5000 employees • Est. 2016 • Trust A • Hiring 77, 7 new
HQ: London, United Kingdom • Financial Data & Market Intelligence • Stock Exchanges & Market Infrastructure • 1001-5000 employees • Est. 2016 • Trust A • Hiring 77, 7 new
TP ICAP Group is a global provider of financial market infrastructure, market data, and interdealer brokerage services. Headquartered in London, United Kingdom, the firm connects institutional buyers and sellers across financial, energy, and commodities markets through both voice and electronic trading platforms. Leveraging its extensive brokerage network and data analytics division, it facilitates liquidity, price discovery, and risk management for commercial banks, hedge funds, and corporations worldwide.
iverify.com • HQ: Long Island City, United States • Information Security • Endpoint Security • 51-200 employees • Est. 2023 • Startup • Hiring 3, 1 new
HQ: Long Island City, United States • Information Security • Endpoint Security • 51-200 employees • Est. 2023 • Startup • Hiring 3, 1 new
IVerify provides Mobile Endpoint Detection and Response (EDR) for enterprise fleets, protecting managed and BYOD devices against zero-day exploits, mercenary spyware, smishing, and SIM-swap attacks. Used by enterprise security teams at companies including Figma.
allstatecorporation.com • HQ: Northbrook, United States • Life Insurance & Annuities • Property & Casualty Insurance • 1001-5000 employees • Est. 1931 • NYSE: ALL • Trust A • Hiring 261, 40 new
HQ: Northbrook, United States • Life Insurance & Annuities • Property & Casualty Insurance • 1001-5000 employees • Est. 1931 • NYSE: ALL • Trust A • Hiring 261, 40 new
Headquartered in Northbrook, Illinois, The Allstate Corporation is one of the largest personal lines insurance providers in the United States. The company offers a broad portfolio of protection products, including auto, homeowners, life, and commercial insurance, as well as voluntary benefits and consumer protection plans. Operating through a vast network of local agents, direct channels, and digital platforms, it serves tens of millions of policyholders across North America.
arqitgroup.com • HQ: London, United Kingdom • Cybersecurity • Cloud Security • Information Security • 51-200 employees • Est. 2017 • Startup • Hiring 7, 2 new
HQ: London, United Kingdom • Cybersecurity • Cloud Security • Information Security • 51-200 employees • Est. 2017 • Startup • Hiring 7, 2 new
Arqit is a London cybersecurity company founded in 2017 that supplies symmetric key agreement software designed to resist quantum attack. Its product distributes rotating encryption keys to endpoints and cloud services without relying on the public key mathematics that quantum computers threaten. The company works with defence, telecommunications and financial customers preparing for post-quantum migration.
deloitte.com • HQ: London, United Kingdom • Management Consulting • Financial Advisory, Valuation & Restructuring • Tax Advisory & Preparation • Audit & Assurance Firms • 1001-5000 employees • Est. 1845 • Trust A • Hiring 422, 51 new
HQ: London, United Kingdom • Management Consulting • Financial Advisory, Valuation & Restructuring • Tax Advisory & Preparation • Audit & Assurance Firms • 1001-5000 employees • Est. 1845 • Trust A • Hiring 422, 51 new
Deloitte is one of the "Big Four" global accounting and professional services firms, providing audit, tax, consulting, and risk advisory services to organizations worldwide. Founded in London in 1845, it operates as a multinational network of independent member firms spanning over 150 countries and territories. Known for its extensive market reach and industry expertise, the organization serves a vast majority of the Fortune Global 500 companies.
upwind.io • HQ: San Francisco, United States • Vulnerability Management • Application Security • Cloud Security • 501-1000 employees • Startup • Hiring 93, 8 new
HQ: San Francisco, United States • Vulnerability Management • Application Security • Cloud Security • 501-1000 employees • Startup • Hiring 93, 8 new
Upwind Security is a cloud security company headquartered in San Francisco that builds a cloud-native application protection platform (CNAPP) combining agentless scanning with eBPF-powered runtime sensors. The platform covers cloud security posture management, entitlements and data security posture, vulnerability and container security, API security and cloud detection and response, and the company was founded by the team behind Spot.io, which NetApp acquired. Its main engineering hub is in Ramat Gan, Israel, with sales and support teams in the US, UK, Singapore and Australia hiring account executives, security engineers, backend and frontend developers and support engineers.
proofpoint.com • HQ: Sunnyvale, United States • Data Loss Prevention • Email Security • Cybersecurity AI • Information Security • 1001-5000 employees • Est. 2002 • Trust B • Hiring 106, 4 new
HQ: Sunnyvale, United States • Data Loss Prevention • Email Security • Cybersecurity AI • Information Security • 1001-5000 employees • Est. 2002 • Trust B • Hiring 106, 4 new
Proofpoint is an American cybersecurity company founded in 2002 that concentrates on the channels people use rather than the network they sit on, starting from email and expanding into the wider problem of how employees are targeted and how data leaves an organisation. Its products cover email security, insider threat management, data loss prevention, security awareness training and digital risk protection, sold on the premise that most breaches begin with a person rather than a system. Headquartered in Sunnyvale and taken private by Thoma Bravo in 2021, it serves a large share of the Fortune 100 and has continued acquiring in the data security space.
nvidia.com • HQ: Santa Clara, United States • Computer Components • Servers & Data Center Hardware • AI Chips & Accelerators • Processors, MCUs & AI Chips • 5000+ employees • Est. 1993 • Trust B • Hiring 2428, 141 new
HQ: Santa Clara, United States • Computer Components • Servers & Data Center Hardware • AI Chips & Accelerators • Processors, MCUs & AI Chips • 5000+ employees • Est. 1993 • Trust B • Hiring 2428, 141 new
NVIDIA is an American technology company founded in 1993 that invented the graphics processing unit and has become the dominant supplier of accelerated computing platforms for artificial intelligence. Its portfolio spans data centre GPUs and systems built on the Hopper and Blackwell architectures, GeForce consumer graphics, automotive and robotics platforms, high-speed networking acquired with Mellanox, and the CUDA software stack that binds the ecosystem together. Headquartered in Santa Clara, California, the company sells to cloud providers, enterprises, research institutions and gamers worldwide and is one of the most valuable listed businesses on the Nasdaq.
Headquartered in London, United Kingdom, EY (Ernst & Young) is a multinational professional services network and one of the "Big Four" accounting firms. The organization provides financial assurance and auditing, tax advisory, management and technology consulting, and strategy and transactions advisory through its EY-Parthenon arm. Operating across more than 150 countries, it delivers risk management, digital transformation, data analytics, and regulatory compliance solutions to multinational corporations, financial institutions, and government entities worldwide.
m-kopa.com • HQ: Nairobi, Kenya • Smartphones • Consumer Loans & Pawnshops • Leasing, Auto & Equipment Finance • 1001-5000 employees • Est. 2010 • Trust A • Hiring 47, 13 new
HQ: Nairobi, Kenya • Smartphones • Consumer Loans & Pawnshops • Leasing, Auto & Equipment Finance • 1001-5000 employees • Est. 2010 • Trust A • Hiring 47, 13 new
M-KOPA is an African asset-financing fintech based in Nairobi, Kenya, that sells smartphones, solar home systems, electric motorbikes, health cover and digital loans to everyday earners on instalment plans paid daily through mobile money. Founded in 2010, it serves more than 10 million customers across Kenya, Uganda, Nigeria, Ghana and South Africa, has unlocked over 2 billion dollars in credit, works with more than 35,000 sales agents and assembles smartphones locally. Hiring covers sales executives and retail staff across Lagos and Nairobi, finance managers, product, engineering and people roles, and global functions based in London.
Ctrl Alt delivers infrastructure solutions for financial institutions and governments, making the structuring and investment of tokenized asset classes efficient, secure and accessible.
cloudsmith.com • HQ: Belfast, United Kingdom • Cloud Platforms (IaaS & PaaS) • Developer Tools • 201-500 employees • Est. 2017 • Startup • Trust A • Hiring 11
HQ: Belfast, United Kingdom • Cloud Platforms (IaaS & PaaS) • Developer Tools • 201-500 employees • Est. 2017 • Startup • Trust A • Hiring 11
Cloudsmith is a Northern Irish company founded in 2017. Its cloud-native platform hosts and secures software packages across many formats. The service is used by engineering teams to manage their software supply chain.
