Backend Developer Jobs in Belfast

Backend Developer jobs in Belfast hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $82,917/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

Belfast
AI/ML
Data Science
Backend
Frontend
Mobile
DevOps
Web3
Games
Hardware
Robotics
Security
QA
Executive
Networking
Product
Design
Analytics
Support
Enterprise Apps
Quantum

Huzzle

huzzle.app
Huzzle is an early careers platform connecting students, societies, and employers. Starting out as a CRM for pre-professional student societies, Huzzle has evolved into the university career companion used by over 100,000 talents in the UK.
huzzle.app • HQ: London, United Kingdom • Professional Services • Education • Human Resources • 1001-5000 employees
HQ: London, United Kingdom • Professional Services • Education • Human Resources • 1001-5000 employees
Open 131 dayVerified live · 1 hour ago 5 months ago

Go-To-Market Engineer

$124k – $254k per year (Estimated) • Remote (United States, United Kingdom, Canada) • Full-Time
SQL
Analytics
A/B Testing
Management
Zapier
Marketing
HubSpot
Salesforce
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Open 139 daysVerified live · 1 hour ago 5 months ago

Full-stack Developer

Remote (United States, India, United Kingdom, Australia, Brazil) • Full-Time
Go
TypeScript
JavaScript
Databases
PostgreSQL
Supabase
Frontend
React.js
Web3
Smart Contracts
Apply
Open 180 daysVerified live · 1 hour ago 6 months ago

Full-Stack Developer (Python, React, AI)

Remote (United States, United Kingdom, Australia, Canada, Colombia) • Full-Time
Python
JavaScript
Python
FastAPI
AI/ML
Claude
Claude Code
Frontend
React.js
Mobile
Clean Architecture
DevOps
AWS
GitHub
Apply
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DuckDuckGo

duckduckgo.com
DuckDuckGo is an independent American software company headquartered in Paoli, Pennsylvania. The company is private held with a team of passionate people from over 15 counties.
duckduckgo.com • Singapore • Search Engines • Est. 2008
Singapore • Search Engines • Est. 2008
$179k per year • Equity • Senior • 7+ years exp • Remote (United States, Canada, United Kingdom) • Full-Time • Senior
Go
Node JS
Perl
JavaScript
AI/ML
AI Agents
ChatGPT
Claude
Prompt Engineering
RAG
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Flosum

flosum.com
Flosum is a Salesforce-native DevOps and deployment platform built for enterprise teams. Automate releases, improve governance, and deploy faster with confidence.
flosum.com • HQ: San Ramon, United States • Software • Information Technology • DevOps
HQ: San Ramon, United States • Software • Information Technology • DevOps
Verified live · 1 day ago 5 months ago

Senior Node.js Developer (UK)

$88k – $167k per year (Estimated) • Senior • 5+ years exp • Remote (United Kingdom) • Senior
Apex
Node JS
SQL
TypeScript
JavaScript
Apex
Lightning Web Components
Visualforce
Frontend
Vue.js
DevOps
AWS
Azure
CI/CD
Docker
GCP
Git
Cybersecurity
FedRAMP
GDPR
HIPAA
SOC 2
Marketing
Salesforce
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Supabase

supabase.io
Supabase is an open-source backend-as-a-service company headquartered in San Francisco, California, and founded in 2020. The company provides a suite of development tools built on top of PostgreSQL, including database management, user authentication, edge functions, real-time data synchronization, and vector storage for machine learning applications. Operating as a remote-first organization, it serves a global community of developers and enterprises by offering a scalable alternative to proprietary cloud platforms through its integrated suite of open-source technologies.
supabase.io • HQ: San Francisco, United States • Machine Learning • Artificial Intelligence • Cloud Computing • Mobile App Development • Software • Web Development • Information Technology • Database Management • 201-500 employees • Est. 2020
HQ: San Francisco, United States • Machine Learning • Artificial Intelligence • Cloud Computing • Mobile App Development • Software • Web Development • Information Technology • Database Management • 201-500 employees • Est. 2020
Verified live · 2 hours ago 5 months ago

Software Engineer - Auth

$69k – $194k per year (Estimated) • Equity • Middle • 4+ years exp • Remote • Full-Time • Middle
Go
TypeScript
Python
PHP
JavaScript
Ruby
Ruby
Ruby on Rails
Python
Django
PHP
Laravel
Databases
MySQL
PostgreSQL
Supabase
Frontend
Next.js
React.js
DevOps
Vector
GitHub
AWS
Grafana
Kubernetes
OpenTelemetry
Prometheus
Apply
Verified live · 2 hours ago 7 months ago

Postgres Engineer

Equity • Remote • Full-Time
Rust
Databases
PostgreSQL
Supabase
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Morpho

morpho.org
Morpho is a decentralised lending protocol founded in 2021 by a team based in Paris. It replaces monolithic lending pools with minimal, immutable markets that anyone can configure, layering curated vaults on top for passive depositors. The protocol is used by fintech applications and exchanges to embed crypto-backed lending without operating their own credit infrastructure.
morpho.org • HQ: Paris, France • Creative Agencies • Design & Creative • Branding • Est. 2021
HQ: Paris, France • Creative Agencies • Design & Creative • Branding • Est. 2021
Open 151 dayVerified live · 1 hour ago 5 months ago

Staff Backend Engineer

$75k – $157k per year (Estimated) • Staff+ • 10+ years expParis • Remote (Europe) • Full-Time • Staff
TypeScript
Databases
PostgreSQL
Frontend
GraphQL
Web3
DeFi
Morpho
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Mimica

mimica.ai
Mimica watches you work and learns to automate your most repetitive tasks. Its research and tech are backed by Entrepreneur First, Europe's most successful accelerator and seed fund.
mimica.ai • HQ: London, United Kingdom • AI Agents • Software • Business Process Automation (BPA) • 201-500 employees
HQ: London, United Kingdom • AI Agents • Software • Business Process Automation (BPA) • 201-500 employees
Open 158 daysVerified live · 1 day ago 6 months ago

Staff/Lead Fullstack Engineer (Frontend-focused)

$95k – $191k per year (Estimated) • Equity • Lead • 8+ years expBuenos AiresBerlinAmsterdamPragueBarcelona • Remote (Germany, United Kingdom, Argentina, Brazil, Czech Republic) • Full-Time • Staff • English: C1
JavaScript
AI/ML
LLM
AI Agents
Frontend
React.js
Apply
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Restream

restream.io
Restream is #1 solution that helps to broadcast live video to all social networks simultaneously. Millions of people around the world use Restream to reach, engage, and monetize their audiences. We're a small and diverse group of dreamers who mak...
restream.io • Austin • Tallinn • Software • Video Production • Media & Entertainment
Austin • Tallinn • Software • Video Production • Media & Entertainment
Open 158 daysVerified live · 1 day ago 6 months ago

Senior Software Engineer - Backend - AI Clips Team

$69k – $196k per year (Estimated) • Equity • Senior • Remote (Europe) • Full-Time • Senior
Node JS
Rust
TypeScript
JavaScript
Databases
Redis
DevOps
AWS
CI/CD
Docker
Kubernetes
Apply
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ShopMy

shopmy.us
ShopMy is an industry leading platform used to effortless integrate all aspects of creator marketing, from talent discovery to collaboration and monitoring. We work with a network of 40K+ creators and drive millions in order volume monthly for our brand partners. With ShopMy brands have the resources and tools to build a world-class creator marketing program, all in one place.
shopmy.us • New York • Commerce • Est. 2020
New York • Commerce • Est. 2020
Open 333 daysVerified live · 7 hours ago 11 months ago

Senior Full Stack Engineer

$67k – $190k per year (Estimated) • Senior • 5+ years exp • Remote (Europe) • Bachelor's Degree • Senior
JavaScript
Node JS
Frontend
React.js
Redux
Sass
DevOps
AWS
Amazon CloudWatch
Amazon ECS
Apply
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PA Consulting

paconsulting.com
PA Consulting is a global management consultancy headquartered in London, United Kingdom, and founded in 1943. The firm provides strategic consulting, product design and engineering, and digital transformation services across sectors such as energy, healthcare, defense, and financial services. Operating with over 4,000 specialists across Europe and the United States, the company is majority-owned by Jacobs and focuses on combining technology with business strategy to drive innovation.
paconsulting.com • HQ: London, United Kingdom • Government • Biopharma • Health Care • Energy & Utilities • Industrial Design • Design & Creative • Information Technology • IT Consulting • 1001-5000 employees • Est. 1943
HQ: London, United Kingdom • Government • Biopharma • Health Care • Energy & Utilities • Industrial Design • Design & Creative • Information Technology • IT Consulting • 1001-5000 employees • Est. 1943
Open 160 daysVerified live · 1 day ago 6 months ago

Technical Lead

$88k – $176k per year (Estimated) • Lead • Remote/Hybrid (Belfast, United Kingdom) • Full-Time • Senior
C#
JavaScript
C#
.NET
DevOps
CI/CD
AWS
Azure
GCP
Apply
Open 300 daysVerified live · 1 day ago 10 months ago

Technical Lead

$93k – $187k per year (Estimated) • Lead • 5+ years expIn office (Belfast, United Kingdom) • Full-Time • Senior
Java
C#
JavaScript
TypeScript
C#
ASP.NET Core
Java
Spring Boot
AI/ML
Model Context Protocol
Frontend
Angular
React.js
Vue.js
DevOps
Azure
Bicep
CI/CD
CloudFormation
Terraform
AWS
Azure DevOps
GCP
GitHub Actions
Jenkins
GitHub
Apply
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HP Inc.

hp.com
HP Inc. is a American multinational technology company specializing in personal computing, printing systems, and 3D printing solutions. Formed in 2015 following the corporate split of the original Hewlett-Packard Company, it manufactures a broad portfolio of consumer and enterprise products, including laptops, desktop PCs, workstation displays, and commercial printers.
hp.com • HQ: Palo Alto, United States • Consumer Electronics • Printers & Scanners • Laptops • 5000+ employees
HQ: Palo Alto, United States • Consumer Electronics • Printers & Scanners • Laptops • 5000+ employees
Open 173 daysVerified live · 1 day ago 6 months ago

Browser Software Engineer Intern

Intern • Cambridge • Remote (United Kingdom) • Relocation • Bachelor's Degree • Internship • Intern
C++
Python
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Senseon

senseon.io
Senseon is a London cybersecurity company founded in 2017 that correlates signals from endpoints, network and cloud into single investigations. Its approach aims to reduce alert fatigue for teams that cannot staff a full security operations centre. The company serves mid-sized organisations across Britain and Europe.
senseon.io • HQ: London, United Kingdom • Data & Analytics • Artificial Intelligence • Cybersecurity • Est. 2017
HQ: London, United Kingdom • Data & Analytics • Artificial Intelligence • Cybersecurity • Est. 2017
Open 180 daysVerified live · 1 day ago 6 months ago

Go-to-Market Engineer (AI-first GTM Engineering)

$81k – $182k per year (Estimated) • Remote (United Kingdom, South Africa) • Full-Time
Python
AI/ML
Claude
Claude Code
AI Agents
LLM Guardrails
OpenAI Codex
DevOps
CI/CD
GitHub Actions
GitHub
IAM
Cybersecurity
Least Privilege
Apply
Report

Plum

plumhq.com
Plum is an insurtech and employee health benefits platform based in India. Founded in 2019, the company provides automated group health insurance, corporate wellness plans, and commercial business insurance tailored for startups, SMEs, and large enterprises.
plumhq.com • HQ: London, United Kingdom • Digital Health • Health Care • Insurance • Est. 2019
HQ: London, United Kingdom • Digital Health • Health Care • Insurance • Est. 2019
Open 201 dayVerified live · 1 day ago 7 months ago

Senior Backend Engineer

$88k – $167k per year (Estimated) • Equity • Senior • 5+ years expLondon • Remote (Cyprus, United Kingdom) • Full-Time • Senior
Python
Java
Kotlin
Python
FastAPI
Java
Spring Boot
Databases
Google BigQuery
PostgreSQL
RabbitMQ
DevOps
Datadog
GCP
Grafana
Kubernetes
Prometheus
Terraform
QA
Sentry
Apply
Report

OpenProject.org

openproject.org
Achieve great things together We empower project teams to achieve great things together for the good of society. OpenProject is targeted at organizations that want to positively impact the world.
openproject.org • Financial Services • Software • Project Management
Financial Services • Software • Project Management
Open 206 daysVerified live · 1 day ago 7 months ago

Senior Ruby on Rails Developer

$89k – $217k per year (Estimated) • Senior • Remote • PhD • Full-Time • Senior • German • English
JavaScript
Ruby
TypeScript
Ruby
Ruby on Rails
Stimulus
Frontend
Angular
React.js
DevOps
CI/CD
GitHub
Apply
Report

Ergonia

ergonia.io
You own quality and test automation at Cashen. You will build the QA infrastructure from the ground up - automated test suites, CI integration, regression coverage, and release validation - for a platform where bugs have financial consequences. A missed edge case in a deal state transition or an interest accrual rounding error doesn't just degrade UX - it moves money incorrectly between institutional counterparties.
ergonia.io • London • FinTech • Software • Quality Assurance
London • FinTech • Software • Quality Assurance
Open 230 daysVerified live · 1 day ago 8 months ago

Solana PERP DEX: Superis Labs - Software Engineer, Backend

$86k – $194k per year (Estimated) • Middle • 3+ years expLondon • Remote (United Kingdom) • Full-Time • Middle
Rust
Web3
DeFi
Smart Contracts
Solana
Apply
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Paddle

paddle.com
Paddle is a London company founded in 2012 that acts as merchant of record for software businesses. It handles checkout, subscription billing, sales tax and compliance worldwide so developers do not have to register in each jurisdiction. The company serves thousands of software as a service and digital product companies globally.
paddle.com • HQ: London, United Kingdom • Cloud Computing • Est. 2012
HQ: London, United Kingdom • Cloud Computing • Est. 2012
Open 256 daysVerified live · 1 hour ago 9 months ago

Senior Software Engineer - Go

$90k – $172k per year (Estimated) • Senior • Remote (United Kingdom, Ireland, Portugal) • Full-Time • Senior
Go
DevOps
AWS
Apply
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Flying Bisons

flyingbisons.com
Flying Bisons is a strategic design and implementation firm that provides digital consulting services focused on creating and improving online products and user experiences. The company offers expertise in areas such as digital strategy, research, design, and end to end delivery for organizations undergoing digital transformation.
flyingbisons.com • Warsaw • Professional Services • Design & Creative • UI/UX Design
Warsaw • Professional Services • Design & Creative • UI/UX Design
Open 299 days 10 months ago

Freelance Backend Developer

$28k – $71k per year (Estimated) • Junior • 2+ years exp • Remote (Europe) • Freelance • Junior • English: B2
PHP
SQL
PHP
Symfony
PHPUnit
DevOps
Docker
Git
CI/CD
Apply
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Metabase

metabase.com
Metabase is an open source Business Intelligence and Embedded Analytics tool. Connect to your data stack in 5 minutes to make queries, visualizations, and dashboards easy for everyone—no SQL required.
metabase.com • LLM & Generative AI • Information Technology • Data & Analytics • 51-200 employees • Est. 2015
LLM & Generative AI • Information Technology • Data & Analytics • 51-200 employees • Est. 2015
Open 312 daysVerified live · 6 hours ago 11 months ago

Success Engineer (EU)

$63k – $151k per year (Estimated) • Middle • 3+ years exp • Remote (EU, United Kingdom) • Full-Time • Middle
SQL
DevOps
AWS
Docker
GCP
Apply
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Rockstar

tryrockstar.com
Human-led recruiting. Reinvented with AI.For 10x Less.. Personalized, multi-step sequences sent via Rockstar or "on behalf of" your team.
tryrockstar.com • HQ: San Francisco, United States • Artificial Intelligence • Professional Services • Human Resources
HQ: San Francisco, United States • Artificial Intelligence • Professional Services • Human Resources
Open 336 daysVerified live · 1 day ago 12 months ago

Backend Software Engineer (Part-Time / Contractor)

$80k – $146k per year (Estimated) • Senior • 6+ years exp • Remote (United Kingdom, Australia, Brazil, Canada, Mexico) • Contractor • Senior
Python
Python
Django
AI/ML
Claude
Cursor
OpenRouter
OpenAI
Apply
Report

ORY

ory.com
Add customer identity, OAuth, permissions, B2B SSO, or agent security with Ory best practices built in. One command spins up a local stack in seconds.
ory.com • HQ: Scottsdale, United States • Identity Management • Information Technology • Cybersecurity • Est. 2019
HQ: Scottsdale, United States • Identity Management • Information Technology • Cybersecurity • Est. 2019
Open 352 daysVerified live · 2 days ago 12 months ago

Software Engineer

$92k – $223k per year (Estimated) • Senior • 5+ years exp • Remote (Europe) • Bachelor's Degree • Full-Time • Senior
C#
C++
JavaScript
Kotlin
Python
Rust
DevOps
Kubernetes
IAM
Apply
Report

Netguru

netguru.com
Netguru is a digital consultancy and software development company headquartered in Poznan, Poland, and founded in 2008. The firm provides a wide range of services including custom software engineering, product design, artificial intelligence development, and cloud infrastructure management. Operating globally with a team of over 600 specialists, the company serves clients across various sectors such as finance, healthcare, and retail, focusing on digital transformation and AI-native commerce solutions.
netguru.com • HQ: Poznań, Poland • Machine Learning • Artificial Intelligence • Web Development • IT Outsourcing • Information Technology • Design & Creative • Mobile App Development • Software • Est. 2008
HQ: Poznań, Poland • Machine Learning • Artificial Intelligence • Web Development • IT Outsourcing • Information Technology • Design & Creative • Mobile App Development • Software • Est. 2008
Verified live · 1 day ago 12 months ago

Java Developer (Freelance)

up to $70k per year (net) • Remote (EU, Europe) • Freelance
Java
Kotlin
SQL
Java
Spring Boot
DevOps
AWS
CI/CD
Apply
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Backend Developer Jobs in Belfast
Frequently asked questions
How many Backend Developer jobs in Belfast are available on Alion?
There are currently 36 active listings from 14 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in Belfast pay?
The average salary is around $82,917 per year based on the current listings.
Are remote options available for Backend Developer jobs in Belfast?
Yes, many of these roles offer remote or hybrid work, and you can filter listings by remote, relocation and visa sponsorship.
How do I apply for Backend Developer jobs in Belfast?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.