Backend Developer jobs in Belfast hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $108,124/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.
Few employers in this selection publish pay, so these figures are Alion estimates built from comparable listings by role, level and country. Gross annual, converted to USD.
version1.com • HQ: Dublin, Ireland • Managed IT Services (MSP) • Enterprise Apps Implementation Partners • IT Consulting & Digital Transformation • 1001-5000 employees • Est. 1996 • IT services • Trust B • Hiring 129, 13 new
HQ: Dublin, Ireland • Managed IT Services (MSP) • Enterprise Apps Implementation Partners • IT Consulting & Digital Transformation • 1001-5000 employees • Est. 1996 • IT services • Trust B • Hiring 129, 13 new
Version 1 is an Irish technology services company founded in Dublin in 1996 that delivers digital transformation, enterprise applications and managed services to public sector bodies and large private organisations. Its practices cover cloud migration on the major hyperscalers, Oracle and Microsoft enterprise applications, custom software engineering, data and artificial intelligence, and infrastructure managed services, with much of its revenue coming from British and Irish government contracts. The company is headquartered in Dublin, employs several thousand people across Ireland, the United Kingdom, India and North America, and is majority owned by Partners Group.
slice.careers • Skopje • Pristina • Belfast • Debar • New York • E-commerce Platforms • Marketplaces • Likely startup • Trust B • Hiring 20, 1 new
Skopje • Pristina • Belfast • Debar • New York • E-commerce Platforms • Marketplaces • Likely startup • Trust B • Hiring 20, 1 new
Slice is a technology company supporting independent small businesses such as local pizzerias with technology, services and collective buying power. It serves tens of thousands of restaurants, and its job ads seek engineers, social media coordinators and customer experience representatives in Skopje, Pristina and Belfast. The company is based in the United States.
bt.com • HQ: London, United Kingdom • Telecommunications • Broadband • 5000+ employees • Est. 2001 • Trust A • Hiring 87, 28 new
HQ: London, United Kingdom • Telecommunications • Broadband • 5000+ employees • Est. 2001 • Trust A • Hiring 87, 28 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 370, 43 new
HQ: Atlanta, United States • POS Systems • Cards & Card Issuing • Payment Processing & Gateways • 1001-5000 employees • Est. 2000 • NYSE: GPN • Trust A • Hiring 370, 43 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 3170, 336 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 3170, 336 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, 6 new
HQ: London, United Kingdom • Financial Data & Market Intelligence • Stock Exchanges & Market Infrastructure • 1001-5000 employees • Est. 2016 • Trust A • Hiring 77, 6 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, 33 new
HQ: Northbrook, United States • Life Insurance & Annuities • Property & Casualty Insurance • 1001-5000 employees • Est. 1931 • NYSE: ALL • Trust A • Hiring 261, 33 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 6, 1 new
HQ: London, United Kingdom • Cybersecurity • Cloud Security • Information Security • 51-200 employees • Est. 2017 • Startup • Hiring 6, 1 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 429, 57 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 429, 57 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 107, 5 new
HQ: Sunnyvale, United States • Data Loss Prevention • Email Security • Cybersecurity AI • Information Security • 1001-5000 employees • Est. 2002 • Trust B • Hiring 107, 5 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 2377, 124 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 2377, 124 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 46, 12 new
HQ: Nairobi, Kenya • Smartphones • Consumer Loans & Pawnshops • Leasing, Auto & Equipment Finance • 1001-5000 employees • Est. 2010 • Trust A • Hiring 46, 12 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.
Most employers in this selection do not publish a figure, so the range below is Alion's own estimate, derived from 81 comparable listings priced by role, level and country. Across them the middle half of the market sits between $101K and $117K a year, with a median of $106K. By level, the median runs middle at $89K, senior at $107K, and head+ at $116K. The step from middle to head+ is worth about 1.3x on median pay. Figures are gross annual amounts converted to US dollars, so roles in different currencies stay comparable.
The market right now
Alion currently lists 83 open Backend Developer Salary in Belfast from 33 companies. 21 of them were posted or refreshed in the last seven days. 31 of the employers have posted something in the last three months, which is the pool worth watching if you are starting a search now. 3 of the 83 carry the marks of a stale or abandoned posting - open far beyond the usual time to fill, reposted, or on a board that mostly never closes a role - and are marked as likely inactive; the list can hide them. Every listing links straight to the employer, so you apply on their own board rather than through an intermediary.
Where the work is
The largest concentrations of these roles are United Kingdom (9), Ireland (1), Spain (1), and Portugal (1). 13% of the listings are fully remote and a further 53% are hybrid, so a large part of this market is open to you regardless of where you live.
Who is hiring
The employers with the most open Backend Developer Salary in Belfast right now are Citi (21), Kainos (5), Deloitte (5), Slice (4), TP ICAP Group (3), and Allstate Corporation (3). Each company page on Alion carries its size, funding stage, tech stack and every other position it has open, so you can judge the employer before you spend an evening on the application.
What employers ask for
Reading across the current listings, the tools that come up most often are CI/CD (51), AWS (37), Java (35), Agile (34), Python (33), JavaScript (28), Kubernetes (26), and TypeScript (25). The counts are how many of these openings name each one, which is a better guide to what is actually being hired for than a generic skills list.
Relocation, visas and equity
Of the current Backend Developer Salary in Belfast, 2 include equity. These are filters on the list above, so you can narrow it to the ones that make a move possible for you.
How many Backend Developer Salary in Belfast are open right now?
There are 83 open Backend Developer Salary in Belfast on Alion from 33 companies. The list was last refreshed on October 23, 2026.
Are all of these Backend Developer Salary in Belfast still being filled?
Probably not all of them. 3 of the 83 show the marks Alion reads as a likely inactive posting: open far longer than employers usually take to fill such a role, reposted several times, or sitting on a board that rarely closes anything. They stay listed with a warning, and the list can hide them with one switch.
What do Backend Developer Salary in Belfast pay?
The median is $106K a year, and the middle half of the market falls between $101K and $117K. Few of these employers publish a figure, so this is Alion's estimate based on 81 comparable listings.
Are any of these roles remote?
11 of the 83 listings (13%) are fully remote, and you can filter the list down to them in one click.
Which companies are hiring?
The most active employers right now are Citi, Kainos, Deloitte, Slice, TP ICAP Group, and Allstate Corporation. Each has its own page on Alion with the rest of its open roles.
How do I apply?
Open any listing and apply on the employer's own board through the link on the page. No account is required to browse or to apply.
