Backend Developer Jobs in Madrid

Backend Developer jobs in Madrid hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $112,301/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

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

Mural

mural.co
Mural is a SaaS company that builds a collaborative digital workspace for teams who need to think together, plan work, and make decisions when they are not in the same room. Its product centres on a visual canvas where people can map ideas, run workshops, and turn discussions into structured outcomes. The problem it tackles is a familiar one for modern organisations, keeping collaboration clear and inclusive across distributed teams, while avoiding the confusion that can come from long video calls, scattered documents, and decisions that only exist in someone’s notes.
mural.co • Professional Services • Communication & Collaboration • Artificial Intelligence • 51-200 employees
Professional Services • Communication & Collaboration • Artificial Intelligence • 51-200 employees
Verified live · 1 day ago 2 months ago

Senior Software Engineer, Growth

$52k – $118k per year (Estimated) • Senior • 5+ years exp • Remote (Argentina, Spain) • Full-Time • Senior
Node JS
TypeScript
JavaScript
AI/ML
Model Context Protocol
Frontend
React.js
Analytics
A/B Testing
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Fusion Consulting

fusionconsulting.com
Fusion Consulting (Fusion Consulting Group) is a London-headquartered international professional services firm that provides integrated tax, private client, legal, corporate finance, and digital marketing advisory. Founded in 2015, the firm specializes in supporting high-net-worth individuals, entrepreneurs, and fast-growing businesses through a holistic, multi-disciplinary model. By unifying technical advisory services under one roof, Fusion helps clients navigate complex cross-border financial, legal, and operational structures to optimize growth and preserve wealth.
fusionconsulting.com • Mainz • Lisbon • Budapest • Prague • Warsaw • Professional Services • 201-500 employees
Mainz • Lisbon • Budapest • Prague • Warsaw • Professional Services • 201-500 employees
Verified live · 1 hour ago 2 months ago

Senior Rust Developer

$55k – $126k per year (Estimated) • Senior • 4+ years expBarcelona • Remote (Spain) • Relocation • Full-Time • Senior
Rust
TypeScript
JavaScript
Frontend
Angular
React.js
Vue.js
DevOps
AWS
Rest API
Game Dev
Unity
Analytics
ETL/ELT
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Clarity

clarity.ai
Your browser does not support the video tag. Clarity, with proof The AI-native platform for extra-financial intelligence We support financial institutions, companies, governments, and consumers in making the right decisions - efficiently, confidently, and at scale.
clarity.ai • Madrid • Data & Analytics • Financial Services • Artificial Intelligence • Est. 2017
Madrid • Data & Analytics • Financial Services • Artificial Intelligence • Est. 2017
Open 131 day 5 months ago

Junior Software Engineer - Consumer Team

$65k – $170k per year (Estimated) • Equity • Junior • Remote (Europe) • Master's Degree • Internship • Junior
Java
Kotlin
TypeScript
JavaScript
Java
Spring Boot
Gradle
Databases
PostgreSQL
Frontend
React.js
DevOps
Docker
GitHub Actions
GitLab CI
gRPC
Kubernetes
GitHub
GitLab
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Aleph

alephdigital.com
Headquartered in Miami, Florida, Aleph is a global digital advertising and ad-tech solutions provider that connects major media platforms with advertisers across emerging and international markets. The company serves as an official advertising sales partner for leading global platforms - including Meta, X, TikTok, and Snapchat - enabling brands to execute localized digital ad campaigns in markets where those platforms do not maintain a physical operational presence.
alephdigital.com • HQ: Miami, United States • Commerce • Sales & Marketing • Advertising
HQ: Miami, United States • Commerce • Sales & Marketing • Advertising
Verified live · 2 hours ago 2 months ago

Principal Engineer

$50k – $132k per year (Estimated) • Lead • Remote/Hybrid (Madrid, Spain) • Full-Time • Principal
JavaScript
PHP
Python
TypeScript
Databases
Google BigQuery
Marketing
Google Ads
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Defuse Labs

defuse.org
Defuse Labs develops NEAR Intents to enable seamless cross-chain interactions in an automated world — connecting AI, services, and financial applications.
defuse.org • Artificial Intelligence • Web3 & dApps • Blockchain & Crypto
Artificial Intelligence • Web3 & dApps • Blockchain & Crypto
Open 131 dayVerified live · 1 day ago 5 months ago

Senior Software Engineer

$94k – $229k per year (Estimated) • Senior • Remote • Senior
Node JS
Rust
TypeScript
JavaScript
DevOps
GCP
Grafana
Kubernetes
Prometheus
Web3
NEAR
Smart Contracts
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Open 154 daysVerified live · 1 day ago 6 months ago

Senior Software Engineer (Solvers)

$92k – $223k per year (Estimated) • Senior • 7+ years exp • Remote • Senior
JavaScript
TypeScript
C++
Rust
Web3
NEAR
Smart Contracts
MEV
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Dentsu Aegis Network (rebranded globally as dentsu) is a major multinational media and digital marketing communications network specializing in advertising, brand strategy, and business transformation. The organization provides integrated solutions spanning creative storytelling, data analytics, media planning, and customer experience management for leading global brands.
dentsu.com • HQ: Tokyo, Japan • Media & Entertainment • Sales & Marketing • Advertising • 501-1000 employees
HQ: Tokyo, Japan • Media & Entertainment • Sales & Marketing • Advertising • 501-1000 employees
Verified live · 1 day ago 2 months ago

Backend Developer (Node.js/TypeScript)

$23k – $80k per year (Estimated) • Middle • 3+ years expIn office (Madrid, Spain) • Full-Time • Architect • English: B2 (Optional)
Node JS
TypeScript
JavaScript
Node JS
Express
Databases
PostgreSQL
Redis
Frontend
Angular
Mobile
Ionic
DevOps
AWS
Heroku
Amazon S3
Marketing
Salesforce
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Scalera AG

ra-scale.ai
RA Scale AG is an ETH Zurich spin off based in the Zurich region that operates the ra-scale.ai platform under the Scalera brand. The company develops an artificial intelligence software suite for construction tenders to help mid sized construction companies optimize business processes and improve return on investment.
ra-scale.ai • Zurich • Artificial Intelligence • Real Estate • PropTech
Zurich • Artificial Intelligence • Real Estate • PropTech
$74k – $105k per year • Senior • 4+ years expZurich • Remote (EU, EEA) • Full-Time • Senior
Python
Python
Django
FastAPI
DevOps
CI/CD
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Open 139 days 5 months ago

Senior Backend Engineer (Python) (Remote)

$99k – $185k per year (Estimated) • Senior • 4+ years expZurich • Remote (EU, EEA) • Full-Time • Senior
Python
Python
Django
FastAPI
Databases
Google BigQuery
AI/ML
Claude
Copilot
Cursor
DevOps
CI/CD
GCP
Google Cloud Run
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Pragmatike

pragmatike.com
Pragmatike is a global remote recruitment and staffing platform that connects companies with top-tier technology professionals. The company specializes in human-curated talent matching, sourcing vetted software developers, product managers, and IT specialists for startups and enterprises worldwide. By streamlining the hiring process and offering flexible, project-based collaboration, it enables organizations to rapidly build and scale their distributed engineering teams.
pragmatike.com • HQ: Hanoi, Vietnam • Information Technology • IT Outsourcing • Professional Services • Human Resources
HQ: Hanoi, Vietnam • Information Technology • IT Outsourcing • Professional Services • Human Resources
Verified live · 8 hours ago 2 months ago

Senior Fullstack Engineer (Remote)

Senior • 5+ years expDubai • Remote (United Arab Emirates, Croatia, Czech Republic, Italy, Montenegro) • Full-Time • Senior • French (Optional)
Node JS
JavaScript
Node JS
Nest.JS
TypeORM
Databases
RabbitMQ
Redis
AI/ML
Claude
Claude Code
Copilot
Cursor
AI Agents
OpenAI Codex
Frontend
React.js
Next.js
Tailwind CSS
Mobile
React Native
DevOps
Rest API
GitHub
Cybersecurity
GDPR
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Zapier

zapier.com
Build and scale AI workflows and agents across 9,000+ apps with Zapier—the most connected AI orchestration platform. Trusted by 3 million+ businesses.
zapier.com • Artificial Intelligence • Data Integration • Business Process Automation (BPA) • Est. 2011
Artificial Intelligence • Data Integration • Business Process Automation (BPA) • Est. 2011
Verified live · 18 min ago 3 months ago

Staff Backend Engineer, Commerce

Staff+ • 8+ years exp • Remote (AMER, EMEA, APAC) • Full-Time • Staff
ChatGPT
Claude
Management
Zapier
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Builder.io

builder.io
One codebase for engineers, designers, PMs, and marketers. Everyone works from one source of truth, on brand and in code, with no handoffs to clean up.
builder.io • New York • San Francisco • Software • Digital Design • Web Development • 51-200 employees • Est. 2017
New York • San Francisco • Software • Digital Design • Web Development • 51-200 employees • Est. 2017
Verified live · 1 day ago 3 months ago

Senior Customer Engineer

$140k – $186k per year • Equity • Senior • 6+ years exp • Remote (EMEA) • Senior
JavaScript
TypeScript
AI/ML
AI Agents
LLM
Frontend
Angular
GraphQL
React.js
Vue.js
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Uberall

uberall.com
Uberall is a Berlin company founded in 2013 that manages location data and reviews for multi-site brands. Its platform keeps store information consistent across maps, search engines and directories and handles customer reviews centrally. The company serves retail, hospitality and service chains across Europe and North America.
uberall.com • HQ: Berlin, Germany • Sales & Marketing • Data & Analytics • Artificial Intelligence • Est. 2013
HQ: Berlin, Germany • Sales & Marketing • Data & Analytics • Artificial Intelligence • Est. 2013
Verified live · 12 hours ago 3 months ago

Senior Software Engineer - AI Platform & Frameworks

$68k – $191k per year (Estimated) • Senior • 7+ years exp • Remote (Europe, Armenia) • Contractor • Senior
Kotlin
Python
Java
Java
Spring Boot
Databases
Redis
AI/ML
AI Agents
LangChain
LangGraph
LLM
Function Calling
Human-in-the-Loop
LLM Guardrails
Model Context Protocol
Langfuse
MLFlow
DevOps
AWS
gRPC
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Hivemq

hivemq.com
The real-time Industrial Data Platform powering Agentic AI. Built on MQTT to connect, contextualize, and analyze AI-ready data from edge to cloud.
hivemq.com • AI Agents • IoT Connectivity • Internet of Things
AI Agents • IoT Connectivity • Internet of Things
$67k – $140k per year • Senior • 5+ years exp • Remote (Germany, United Kingdom, Spain) • Full-Time • Senior
Apache Kafka
AI/ML
Claude
Claude Code
Copilot
DevOps
ArgoCD
CI/CD
Git
Kubernetes
Self-Healing
IoT
MQTT
Apply
Report

Chromatic

chromatic.com
Chromatic catches visual, interaction, and accessibility issues before they ship. This enforces your UI standards, even when AI codes. Assign reviewers to speed up sign-off and provide agents with validated UI context.
chromatic.com • Software • Quality Assurance • Est. 2017
Software • Quality Assurance • Est. 2017
Verified live · 1 day ago 3 months ago

Developer Experience Engineer

$175k – $194k per year • Remote (Europe, North America) • Full-Time
JavaScript
AI/ML
AI Agents
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Marvell Technology

marvell.com
Marvell Technology is a major American semiconductor company that specializes in designing infrastructure silicon for data centers, enterprise networking, and telecommunications. Founded in 1995, the company develops high-performance data processing units, optical interconnects, custom AI chips, and storage controllers. Through its advanced hardware solutions, it plays a vital role in powering cloud computing, high-speed networking, and automotive electronics worldwide.
marvell.com • HQ: Santa Clara, United States • Hardware • Data Centers • Semiconductors • 1001-5000 employees
HQ: Santa Clara, United States • Hardware • Data Centers • Semiconductors • 1001-5000 employees
Verified live · 1 day ago 3 months ago

Software Engineer Intern

$26k – $38k per year • Intern • In office (Madrid, Spain) • Master's Degree • Internship • Intern
C++
Python
SystemC
AI/ML
ChatGPT
Copilot
DevOps
QEMU
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Bitso

bitso.com
Bitso is a Latin American digital asset platform founded in 2014 and headquartered in Mexico City. It serves retail customers in Mexico, Argentina, Brazil and Colombia and provides stablecoin-based settlement rails for cross-border remittance corridors. The company holds a fintech licence in Mexico and processes a substantial share of the country's digital asset remittance flow.
bitso.com • HQ: Mexico City, Mexico • Cryptocurrencies • Blockchain & Crypto • Est. 2014
HQ: Mexico City, Mexico • Cryptocurrencies • Blockchain & Crypto • Est. 2014
Equity • Remote (LATAM, Europe)
Java
Databases
Apache Kafka
PostgreSQL
AI/ML
Claude
Cursor
DevOps
AWS
CI/CD
Docker
GCP
Kubernetes
Apply
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Filigran

filigran.io
Let’s build a new open approach to cybersecurity strategy and operations. Learn more about how FIligran started and our star team.
filigran.io • HQ: Paris, France • Security Operations • Cybersecurity • Threat Intelligence • Est. 2022
HQ: Paris, France • Security Operations • Cybersecurity • Threat Intelligence • Est. 2022
Verified live · 1 day ago 3 months ago

Staff - Tech Lead Software Engineer - OpenCTI

$52k – $137k per year (Estimated) • Lead • 8+ years exp • Remote (Germany, France, Spain, Portugal) • Full-Time • Staff
Node JS
JavaScript
Databases
ElasticSearch
Frontend
GraphQL
Cybersecurity
OpenCTI
Apply
$50k – $97k per year (Estimated) • Senior • 7+ years exp • Remote (Germany, France, Israel, Spain, Portugal) • Full-Time • Senior
Java
Node JS
Python
TypeScript
JavaScript
AI/ML
Copilot
Cursor
LLM
AI Agents
Frontend
GraphQL
React.js
DevOps
CI/CD
GitHub Actions
GitHub
Cybersecurity
OpenCTI
QA
Cypress
Gatling
Jest
k6
Locust
Pact
Playwright
Vitest
Apply
$51k – $99k per year (Estimated) • Senior • 8+ years exp • Remote (Germany, France, Israel, Spain, Sweden) • Full-Time • Senior
ElasticSearch
PostgreSQL
RabbitMQ
Redis
DevOps
CI/CD
Platform Engineering
Cybersecurity
OpenCTI
Apply
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Stack AI

stackai.com
Stack AI is an enterprise artificial intelligence company headquartered in San Francisco, California, and founded in 2022 by MIT researchers. The company offers a visual builder that lets non-engineers assemble AI agents and workflows over internal documents and business systems, with deployment options that keep data inside the customer environment. It sells mainly to regulated organizations in financial services, healthcare, and government that want agent automation without shipping data to a public model provider.
stackai.com • HQ: San Francisco, United States • Cybersecurity • Business Process Automation (BPA) • Software • LLM & Generative AI • AI Agents • Artificial Intelligence • Est. 2022
HQ: San Francisco, United States • Cybersecurity • Business Process Automation (BPA) • Software • LLM & Generative AI • AI Agents • Artificial Intelligence • Est. 2022
Verified live · 2 days ago 3 months ago

Forward Deployed Engineer (Spain)

$93k – $116k per year • Middle • 3+ years exp • Remote (Spain) • Full-Time • Middle • Spanish: C1
Python
TypeScript
JavaScript
Databases
PostgreSQL
AI/ML
AI Agents
ChatGPT
LLM
RAG
Frontend
Next.js
React.js
Management
Airtable
Apply
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Cohere

cohere.com
Cohere is a Canadian AI company founded in 2019 and headquartered in Toronto. It builds secure, enterprise-focused large language models and AI tools for businesses and regulated industries. The company is known for emphasizing privacy, private deployment, and "sovereign AI" rather than consumer chat products
cohere.com • HQ: Toronto, Canada • Energy & Utilities • Biotechnology • Natural Language Processing • LLM & Generative AI • Artificial Intelligence • 1001-5000 employees • Est. 2019
HQ: Toronto, Canada • Energy & Utilities • Biotechnology • Natural Language Processing • LLM & Generative AI • Artificial Intelligence • 1001-5000 employees • Est. 2019
Verified live · 3 hours ago 3 months ago

Software Engineer, North for Finance

Remote (EU, Europe, United States, Canada) • Full-Time
AI Agents
Edge AI
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Arista Networks

arista.com
US headquartered Arista Networks provides software-driven cloud networking solutions for large data center, cloud computing, high-performance computing and high-frequency trading environments. Products includes Low latency switches.
arista.com • HQ: Santa Clara, United States • Telecommunications • Information Technology • Data Centers • Network Equipment • Enterprise Networks • 1001-5000 employees • Est. 2004
HQ: Santa Clara, United States • Telecommunications • Information Technology • Data Centers • Network Equipment • Enterprise Networks • 1001-5000 employees • Est. 2004
Verified live · 2 hours ago 3 months ago

Back End Software Engineer - C++ - Spain

$58k – $131k per year (Estimated) • Senior • 5+ years expIn office (Madrid, Spain) • Bachelor's Degree • Full-Time • Senior
C++
Go
Databases
Apache Kafka
ClickHouse
ElasticSearch
HBase
DevOps
CI/CD
Kubernetes
ZooKeeper
Apply
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Bnberry

bnberry.com
BnBerry will create listings for your property across all the major vacation rental platforms and provide a dedicated team of travel professionals to manage 24/7 customer support, marketing and reservations. Connect with the constantly growing aud...
bnberry.com • Real Estate Rental • Travel & Tourism • Vacation Rentals
Real Estate Rental • Travel & Tourism • Vacation Rentals
Verified live · 2 hours ago 3 months ago

Senior Laravel Developer

$61k – $94k per year (Estimated) • Senior • Remote (Czech Republic, Poland, Serbia, Spain, Portugal) • Full-Time • Senior • Russian: C1 (Optional)
PHP
PHP
Laravel
Databases
MySQL
DevOps
CI/CD
Docker
Kubernetes
GCP
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Backend Developer Jobs in Madrid
Frequently asked questions
How many Backend Developer jobs in Madrid are available on Alion?
There are currently 89 active listings from 48 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in Madrid pay?
The average salary is around $112,301 per year based on the current listings.
Are remote options available for Backend Developer jobs in Madrid?
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 Madrid?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.