Backend Developer Jobs in Brussels

Backend Developer jobs in Brussels hiring now at vetted startups and product companies on Alion, updated daily. Average salary around $134,183/year. Compare remote, hybrid and on-site positions with relocation and visa sponsorship. Browse and apply today.

Brussels
AI/ML
Data Science
Backend
Frontend
Mobile
DevOps
Web3
Games
Hardware
Robotics
Security
QA
Executive
Networking
Product
Design
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Quantum

Webdoctor

webdoctor.ie
Webdoctor is a healthcare provider in the telemedicine and digital health services field in Ireland. It provides online doctor consultations, electronic prescriptions, and remote medical advice and referrals.
webdoctor.ie • Warsaw • Dublin • Health Care • Hospitals & Clinics • Digital Health
Warsaw • Dublin • Health Care • Hospitals & Clinics • Digital Health
$62k – $95k per year (Estimated) • Senior • 5+ years expWarsaw • Remote (EU, EEA) • Full-Time • Senior
JavaScript
Ruby
SQL
Ruby
Hotwire
Ruby on Rails
Stimulus
Frontend
React.js
DevOps
Ansible
Azure
Azure DevOps
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Sourcegraph

sourcegraph.com
Founded in 2013, Sourcegraph is an AI-powered code intelligence platform designed to help software engineers search, understand, and automate edits across massive codebases. The platform offers universal code search and an AI coding assistant named Cody, enabling developers to navigate complex repositories, speed up context gathering, and fix issues faster. By integrating directly into existing developer workflows and hosting environments, the company helps large engineering teams scale productivity and maintain code quality.
sourcegraph.com • Media & Entertainment • Books • Artificial Intelligence • Code Intelligence • Est. 2013
Media & Entertainment • Books • Artificial Intelligence • Code Intelligence • Est. 2013
Verified live · 1 day ago 2 months ago

Software Engineer/Tech Lead - Code Plane [IC5]

$114k – $256k per year (Estimated) • Lead • 8+ years exp • Remote • Internship • Staff
JavaScript
Go
TypeScript
Databases
PostgreSQL
AI/ML
AI Agents
Claude
Claude Code
Cursor
Model Context Protocol
Frontend
Svelte
GraphQL
SvelteKit
DevOps
Docker
Kubernetes
QA
Rest-Assured
Apply
Verified live · 1 day ago 2 months ago

Software Engineer - Platform [IC3]

Remote
Model Context Protocol
DevOps
AWS
Azure
CDKTF
GCP
Kubernetes
SLI/SLO/SLA
Terraform
gRPC
QA
Rest-Assured
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Nationale-Nederlanden Poland is a leading financial institution that provides a comprehensive range of insurance, pension, and investment products. As part of a major international group, the company helps individuals and businesses secure their financial futures through tailored life, health, and property insurance solutions. Driven by a focus on digital innovation and customer care, it supports clients in managing risks and planning long-term financial stability.
nn.pl • Warsaw • The Hague • Budapest • Amsterdam • Rotterdam • Financial Services • Wealth Management • Insurance • 1001-5000 employees
Warsaw • The Hague • Budapest • Amsterdam • Rotterdam • Financial Services • Wealth Management • Insurance • 1001-5000 employees
Verified live · 1 day ago 2 months ago

Engineering Team Leader Data, API & Quality

Lead • Remote/Hybrid (Brussels, Belgium) • Full-Time • Staff • Dutch • French (Optional)
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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 130 days 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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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 130 daysVerified live · 9 hours 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 153 daysVerified live · 9 hours 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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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 138 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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European Dynamics

eurodyn.com
European Dynamics is a leading European IT services provider and software vendor specializing in e-government and public-sector digital transformation. Operating internationally across dozens of countries, the company designs, develops, and manages complex software systems for national government bodies, EU institutions, and international organizations.
eurodyn.com • HQ: Athens, Greece • Information Technology • Government • Digital Government • 1001-5000 employees • Est. 1993
HQ: Athens, Greece • Information Technology • Government • Digital Government • 1001-5000 employees • Est. 1993
Verified live · 1 day ago 2 months ago

Full Stack developer (.NET/Angular)

Staff+ • 10+ years expIn office (Brussels, Belgium) • Full-Time • Staff
C#
SQL
TypeScript
JavaScript
C#
ASP.NET Core
Entity Framework Core
Databases
ActiveMQ
Apache Kafka
PostgreSQL
Frontend
Angular
PrimeNG
DevOps
CI/CD
Docker
GitHub Actions
Helm
Kong
Kubernetes
Rest API
GitHub
Apply
Open 115 daysVerified live · 1 day ago 4 months ago

Java Application Architect

Staff+ • 13+ years expIn office (Brussels, Belgium) • Full-Time • Architect
Java
SQL
TypeScript
JavaScript
Java
Hibernate
Maven
Spring Framework
Spring Security
Databases
Oracle
Frontend
Angular
DevOps
Bitbucket
CI/CD
Git
Jenkins
Kong
Rest API
Management
Confluence
Jira
QA
Swagger
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Open 123 daysVerified live · 1 day ago 5 months ago

Application Architect (Java)

Staff+ • 8+ years expIn office (Brussels, Belgium) • Bachelor's Degree • Full-Time • Architect • French: C1
Java
Node JS
TypeScript
JavaScript
Java
Hibernate
Databases
Apache Kafka
Frontend
Angular
Apply
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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 · 1 day ago 3 months ago

Staff Backend Engineer, Revenue

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 · 10 hours 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 · 7 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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Sia

sia.com
SIA is a global management consulting firm headquartered in Paris, France. Founded in 1999, the company delivers business transformation, artificial intelligence (AI), digital technology, and operational consulting services to mid-market and enterprise clients across financial services, energy, healthcare, and retail sectors.
sia.com • HQ: Paris, France • Information Technology • Professional Services • 1001-5000 employees
HQ: Paris, France • Information Technology • Professional Services • 1001-5000 employees
Verified live · 1 hour ago 3 months ago

Senior Software Developer

Senior • 3+ years expRemote/Hybrid (Brussels, Belgium) • Master's Degree • Full-Time • Senior • French • German: C1
Java
Node JS
Python
TypeScript
JavaScript
Java
Spring Boot
Python
Alembic
Django
Flask
Marshmallow
SQLAlchemy
Databases
Apache Kafka
Databricks
AI/ML
Airflow
Flink
Hadoop
Spark
Frontend
Angular
GraphQL
Next.js
Nuxt.js
React.js
Vite
Vue.js
DevOps
AWS
Azure
CI/CD
Docker
GCP
GitLab CI
Kubernetes
GitLab
Apply
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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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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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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 · 1 hour ago 3 months ago

Software Engineer, North for Finance

Remote (EU, Europe, United States, Canada) • Full-Time
AI Agents
Edge AI
Apply
Verified live · 1 hour ago 4 months ago

Forward Deployed Engineer, Agentic Platform (UK/Europe)

Remote/Hybrid (Paris, France, Berlin, Munich, Frankfurt am Main, Germany, London, United Kingdom) • Full-Time
Python
AI/ML
AI Agents
Cohere SDK
LLM
RAG
Edge AI
Apply
$64k – $151k per year (Estimated) • Middle • DubaiParisBerlinLondonMunich • Remote (Germany, France, United Arab Emirates, United Kingdom, Belgium) • Full-Time • Middle
AI Agents
Edge AI
DevOps
AWS
Azure
CI/CD
GCP
Git
Helm
Kubernetes
Apply
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Sopra Steria Poland

soprasteria.pl
Sopra Steria Poland is the Polish subsidiary of the European IT and consulting group Sopra Steria. It delivers information technology services including software development, consulting, and business process support for clients in various economic sectors.
soprasteria.pl • HQ: Warsaw, Poland • Software • Information Technology • IT Consulting • 5000+ employees
HQ: Warsaw, Poland • Software • Information Technology • IT Consulting • 5000+ employees
Verified live · 2 hours ago 3 months ago

AI-Enabled Fullstack .NET Engineer

In office (Brussels, Belgium) • Full-Time • Senior • Dutch: C1 • English: C1
C#
Java
TypeScript
JavaScript
C#
Entity Framework Core
Frontend
Angular
React.js
DevOps
Azure
Apply
Open 430 daysVerified live · 2 hours ago 1 year ago

.NET Technical Lead

Lead • In office (Brussels, Belgium) • Full-Time • Senior • Dutch • German: C1
C#
TypeScript
JavaScript
C#
.NET
Frontend
Angular
Apply
Open 430 daysVerified live · 2 hours ago 1 year ago

Java Technical Lead

Lead • In office (Brussels, Belgium) • Full-Time • Senior • Dutch • German: C1
Java
TypeScript
JavaScript
Java
Hibernate
Maven
Spring Boot
Frontend
Angular
DevOps
Git
Apply
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Talan

talan.com
Talan is an international technology and management consulting group headquartered in Paris, France. The firm specializes in guiding large enterprises and public institutions through digital transformation, leveraging cloud technology, artificial intelligence, data intelligence, blockchain, and IoT.
talan.com • HQ: Paris, Levallois-Perret, France • Data Management • Business Intelligence • Data & Analytics • Artificial Intelligence • IT Consulting • Information Technology • 1001-5000 employees
HQ: Paris, Levallois-Perret, France • Data Management • Business Intelligence • Data & Analytics • Artificial Intelligence • IT Consulting • Information Technology • 1001-5000 employees
Verified live · 1 hour ago 3 months ago

Python Developer I Belgium

Junior • In office (Brussels, Belgium) • Full-Time • Senior
Python
SQL
JavaScript
Python
Flask
Pydantic
Databases
ElasticSearch
AI/ML
Pandas
Frontend
Highcharts
React.js
DevOps
AWS
Docker
Grafana
Kibana
QA
Sentry
Apply
Open 104 daysVerified live · 1 hour ago 4 months ago

.NET Developer I Dutch Speaking

Junior • 3+ years expIn office (Brussels, Belgium) • Full-Time • Senior • Dutch: C1
C#
SQL
TypeScript
JavaScript
C#
ASP.NET Core
AI/ML
Copilot
Frontend
Angular
NgRx
DevOps
GitHub
Apply
Open 150 daysVerified live · 1 hour ago 5 months ago

.NET Developer l Belgium

Senior • 5+ years expIn office (Brussels, Belgium) • Full-Time • Senior • Dutch: C1 • French: C1
C#
C#
.NET
DevOps
Azure
Rest API
Apply
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Nventive

nventive.com
Nventive is a Canadian software company founded in 2011 and based in Montreal. It designs and builds mobile and web products for large brands. The company also maintains open source development frameworks.
nventive.com • HQ: Montreal, Canada • Financial Services • Software • Web Development • Audit • Artificial Intelligence • 1001-5000 employees • Est. 2011
HQ: Montreal, Canada • Financial Services • Software • Web Development • Audit • Artificial Intelligence • 1001-5000 employees • Est. 2011
Verified live · 1 day ago 3 months ago

Développeur Java F/H

Junior • 2+ years expIn office (Brussels, Belgium) • Full-Time • Junior • French: C1
Java
C#
TypeScript
JavaScript
C#
.NET
Frontend
Angular
DevOps
Docker
Kubernetes
Apply
Verified live · 1 day ago 3 months ago

Consultant - Python Developer - AI Enthousiast

Middle • 3+ years expIn office (Brussels, Belgium) • Full-Time • Middle • English: C1
Python
SQL
AI/ML
LLM
DevOps
CI/CD
Docker
Git
Apply
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Playson

playson.com
Playson is a renowned digital entertainment supplier, founded in 2012, which has developed worldwide recognition in the iGaming industry. We operating across 27 regulated markets and partnering with more than 200 operators worldwide. The company offers a diverse portfolio of online casino games, combining engaging math models with high-quality design and immersive gameplay experiences.
playson.com • HQ: Warsaw, Poland • Game Development • Gaming • iGaming & Gambling
HQ: Warsaw, Poland • Game Development • Gaming • iGaming & Gambling
Verified live · 8 hours ago 3 months ago

Senior Software Engineer (Game Engine)

Senior • Remote (EU) • Full-Time • Senior • English: B2 • Ukrainian (Optional)
C#
C++
Go
Java
Node JS
Python
TypeScript
JavaScript
Databases
Apache Kafka
ClickHouse
DevOps
AWS
gRPC
Kubernetes
Apply
Open 433 daysVerified live · 8 hours ago 1 year ago

Senior Backend Engineer (Boosters)

Senior • Remote (EU) • Bachelor's Degree • Full-Time • Senior
C#
C++
Go
Java
Node JS
TypeScript
JavaScript
Databases
Apache Kafka
ClickHouse
DynamoDB
MySQL
NATS
PostgreSQL
RabbitMQ
DevOps
AWS
Azure
GCP
gRPC
Kubernetes
Chips/EDA
PoC Library
Apply
Open 500 daysVerified live · 8 hours ago 1 year ago

Senior Backend Engineer (Core Team)

Senior • Remote (EU, Ukraine) • Full-Time • Senior
C#
C++
Go
Java
Node JS
Python
TypeScript
JavaScript
Databases
Apache Kafka
DynamoDB
MySQL
PostgreSQL
Redis
ClickHouse
AI/ML
Claude
Claude Code
Cursor
DevOps
AWS
gRPC
Kubernetes
GCP
Apply
Report

Constructor

constructor.io
Founded in 2015, Constructor is an AI-powered search and product discovery platform built specifically for enterprise e-commerce businesses. The company utilizes real-time clickstream data and machine learning to deliver personalized product recommendations, site search results, and category browse experiences. By optimizing search outcomes for key retail metrics like revenue and conversion rather than simple keyword matching, it helps major online retailers increase sales and improve customer retention.
constructor.io • HQ: San Francisco, United States • Internet Services • Artificial Intelligence • Commerce • Search Engines • Est. 2015
HQ: San Francisco, United States • Internet Services • Artificial Intelligence • Commerce • Search Engines • Est. 2015
Verified live · 1 day ago 3 months ago

Senior Backend Engineer: Recommendations

$80k – $120k per year • Senior • Remote (EMEA) • Full-Time • Senior • English: B2
Python
Rust
DevOps
AWS
Azure
CI/CD
CloudFormation
GCP
GitHub Actions
Grafana
Jenkins
PagerDuty
Prometheus
Terraform
Amazon CloudWatch
GitHub
Analytics
A/B Testing
Apply
Verified live · 1 day ago 3 months ago

Backend Engineer: Ranking

$80k – $120k per year • Remote (EMEA) • Full-Time • English: B2
Python
Rust
AI/ML
Feature Store
DevOps
CloudFormation
Terraform
AWS
Azure
CI/CD
GCP
Apply
Verified live · 1 day ago 4 months ago

Senior Backend Engineer: Attribute Enrichment

$80k – $120k per year • Senior • 5+ years exp • Remote (EMEA) • Full-Time • Senior • English: B2
Python
Go
Rust
DevOps
AWS
CI/CD
GitHub Actions
Grafana
Jenkins
PagerDuty
Prometheus
Amazon CloudWatch
GitHub
QA
Pytest
Apply
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Codurance

codurance.com
Codurance is a global software consultancy firm focused on helping businesses modernize their technical capabilities and build sustainable growth. With a dedication to Software Craftsmanship, Codurance emphasizes professionalism and technical excellence in software development. The company offers a range of services, including software modernization, product development, and cloud engineering, tailored to help clients solve complex challenges and achieve their business goals.
codurance.com • Barcelona • London • Leeds • Manchester • São Bernardo do Campo • IT Consulting • Information Technology • Software
Barcelona • London • Leeds • Manchester • São Bernardo do Campo • IT Consulting • Information Technology • Software
Open 91 dayVerified live · 1 day ago 3 months ago

Senior Fullstack Consultant

$47k – $70k per year • Senior • 8+ years expBarcelona • Remote (EU) • Relocation • Visa sponsorship • Full-Time • Senior • Spanish
C#
Clojure
JavaScript
Kotlin
PHP
Python
Ruby
Scala
DevOps
AWS
Azure
CI/CD
GCP
Apply
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Backend Developer Jobs in Brussels
Frequently asked questions
How many Backend Developer jobs in Brussels are available on Alion?
There are currently 42 active listings from 16 hiring companies on Alion, refreshed daily.
What salary do Backend Developer jobs in Brussels pay?
The average salary is around $134,183 per year based on the current listings.
Are remote options available for Backend Developer jobs in Brussels?
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 Brussels?
Open any listing on Alion and apply directly with the employer through the provided link - no lengthy sign-up required.