Backend developer jobs in Belgium: Java, Python, Go, .NET and Node.js roles

253 open backend and full stack roles at 131 companies in Belgium: Java and Scala (40), .NET and C# (32), Full stack (34), Backend engineering (120). 252 of them are open to candidates of any nationality; the rest ask for citizenship or a government security check. 2 mention relocation support.

Rebuilt 29 Oct 2026
open roles
253
companies
131
open to any nationality
100%
median stated pay
$113k

Companies hiring

CompanyOpen rolesAny nationalityRelocation
European Dynamics12100%
Smals11100%
Alan10100%
Cegeka7100%
BNP Paribas Fortis6100%
Inetum6100%
Guardsquare5100%
Capgemini5100%
Everience5100%
Connect Consulting5100%
Sia5100%
Aikido Security4100%
iO Digital4100%
Sofico4100%
Talan4100%

Newest roles

Delawareconsulting

delawareconsulting.com
delawareconsulting.com · HQ: Des Moines, United States · IT Consulting & Digital Transformation · Enterprise Apps Implementation Partners · 1001-5000 employees · Est. 2023 · Trust C · Hiring 13, 1 new
HQ: Des Moines, United States · IT Consulting & Digital Transformation · Enterprise Apps Implementation Partners · 1001-5000 employees · Est. 2023 · Trust C · Hiring 13, 1 new
We commit to guiding our customers through their business and digital transformations while delivering advanced ICT solutions and services.
Daniel Heggen · Executive Officer, Director · decision-maker
Jay DeVore · Executive Officer, Director · decision-maker
Brandon Foldes · Executive Officer, Director · decision-maker
No careers mailbox known
Verified live · 3 hours ago 1 day ago Likely open · 60%

Junior .NET Software Developer

Junior · In office (Berchem, Belgium) · Junior
Apply
Likely inactiveVerified live · 3 hours ago 9 months ago Long shot · 5%

Senior AI .Net Engineer

Senior · In office (Berchem, Belgium) · Senior
Apply

Infrabel

infrabel.be
infrabel.be · HQ: Saint-Gilles, Belgium · Transport Infrastructure · Rail Transport · 5000+ employees · Est. 2005 · Hiring 79, 12 new
HQ: Saint-Gilles, Belgium · Transport Infrastructure · Rail Transport · 5000+ employees · Est. 2005 · Hiring 79, 12 new
Infrabel is the Belgian state-owned railway infrastructure manager, headquartered in Saint-Gilles in Brussels, that builds, maintains and modernises the national rail network and directs all train traffic running on it. Founded in 2005 as part of the reform of the Belgian railways, it employs at least 9,500 people at sites across the country and serves railway undertakings, industrial customers and suppliers, with chief executive Benoit Gilson leading eight directorates. It hires track and signalling technicians, work train drivers, electromechanics, system and network engineers, contract specialists, company lawyers and financial controllers, plus many technical and IT interns.
No named decision-maker yet.
Careers mailbox is known
Verified live · 1 hour ago 1 day ago Hiring now · 90%

Stage - Fullstack Java/Angular Ontwikkelaar - Access Check Tool - Bachelor

Intern · In office (Anderlecht, Belgium) · Internship · Intern
TypeScript
JavaScript
SQL
Java
Java
Spring Boot
Frontend
Angular
Mobile
JUnit
DevOps
Rest API
Git
Analytics
Informatica
+2
Apply
Verified live · 1 hour ago 1 day ago Hiring now · 90%

Stage - Développeur·euse Fullstack Java/Angular - Access Check Tool - Bachelor

Intern · In office (Anderlecht, Belgium) · Internship · Intern · French: C1
TypeScript
JavaScript
SQL
Java
Java
Spring Boot
Frontend
Angular
Mobile
JUnit
DevOps
Rest API
Git
+1
Apply

50Hertz

50hertz.com
50hertz.com · HQ: Berlin, Germany · Smart Grid · Power Grid · 1001-5000 employees · Est. 2002 · Trust A · Hiring 123, 12 new
HQ: Berlin, Germany · Smart Grid · Power Grid · 1001-5000 employees · Est. 2002 · Trust A · Hiring 123, 12 new
50Hertz is one of the four electricity transmission system operators in Germany, headquartered in Berlin and responsible for the extra-high-voltage grid in eastern Germany and Hamburg, which supplies about 18 million people. Part of the Belgian Elia Group, it builds and operates overhead lines, substations, the SuedOstLink and NordOstLink projects and offshore grid connections in the Baltic Sea while integrating a large share of renewable power. Hiring covers electrical and civil engineers, substation and overhead line technicians, offshore operations staff, project and construction managers, IT and Java developers and apprentices, via an Elia Group board also listing Belgian roles.
No named decision-maker yet.
Careers mailbox is known
Verified live · 1 hour ago 1 day ago Likely open · 63%

Data integration engineer

$128k per year · In office (Brussels, Belgium) · Dutch · English: C1
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Elia

elia.be
elia.be · HQ: Brussels, Belgium · Smart Grid · Power Grid · 501-1000 employees · Est. 2001 · Trust A · Hiring 63, 12 new
HQ: Brussels, Belgium · Smart Grid · Power Grid · 501-1000 employees · Est. 2001 · Trust A · Hiring 63, 12 new
Elia is the Belgian electricity transmission system operator headquartered in Brussels, owning and operating the high-voltage grid, balancing supply and demand and connecting renewable generation such as offshore wind to the network. Founded in 2001 and listed on Euronext Brussels, it is the core of Elia Group, which also owns the German transmission operator 50Hertz, and it runs substations, control rooms and regional field teams across Flanders, Wallonia and Brussels. It hires field and secondary systems technicians, control room operators, project engineers and leaders, as-built drafters, IT and AI architects, accountants, auditors and interns.
No named decision-maker yet.
No careers mailbox known
Verified live · 2 hours ago 1 day ago Likely open · 63%

Data integration engineer

In office (Brussels, Belgium) · French: C1
Apply

Sportradar

sportradar.com
sportradar.com · HQ: Sankt Gallen, Switzerland · iGaming & Gambling · Sports · Sports Betting · Sports Analytics · Fan Engagement · 1001-5000 employees · Est. 2001 · Trust B · Hiring 87, 20 new
HQ: Sankt Gallen, Switzerland · iGaming & Gambling · Sports · Sports Betting · Sports Analytics · Fan Engagement · 1001-5000 employees · Est. 2001 · Trust B · Hiring 87, 20 new
Sportradar is a Swiss company founded in 2001 that collects live sports data and sells it to betting operators, media companies and sports leagues, and it holds exclusive rights to distribute data from the NBA, NHL, ATP and many other competitions. Its business is a licensing chain: it pays leagues for official data rights, sends people to capture the feed reliably from the venue, and resells it to bookmakers who cannot price in-play markets without it. Headquartered in Sankt Gallen and listed on Nasdaq, it also operates integrity services that monitor betting patterns for match-fixing on behalf of federations.
No named decision-maker yet.
Careers mailbox is known
Verified live · 1 hour ago 1 day ago Hiring now · 90%

Software Engineer

≈ $37k – $102k per year (Estimated) · In office (Mont-Saint-Guibert, Belgium) · Full-Time · Middle · English
Python
Python
Flask
Databases
PostgreSQL
AI/ML
Computer Vision
Machine Learning
DevOps
WebRTC
Linux
CI/CD
AWS
+1
Apply
esa.int · HQ: Paris, France · Launch Services · Space Services · 1001-5000 employees · Est. 1975 · Hiring 31, 9 new
HQ: Paris, France · Launch Services · Space Services · 1001-5000 employees · Est. 1975 · Hiring 31, 9 new
The European Space Agency is an intergovernmental organisation headquartered in Paris that develops and runs Europe's space programmes, from launchers, Earth observation and navigation satellites to science missions, human spaceflight and space safety. Established in 1975, it has 23 member states and operates centres including ESTEC in Noordwijk, ESOC in Darmstadt, ESRIN in Frascati, the European Astronaut Centre in Cologne, ESAC near Madrid and ECSAT at Harwell. It recruits engineers, scientists, project managers, auditors and technology specialists, and runs graduate trainee and internship programmes.
No named decision-maker yet.
No careers mailbox known
Verified live · 5 hours ago 2 days ago Hiring now · 90%

Secure Software and Cryptography Engineer

Middle · 3+ years exp · In office (Belgium) · Bachelor's Degree · Middle · English
C++
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Skills these roles ask for

CI/CD 77Java 66SQL 66Rest API 66Azure 61Angular 59Python 54C# 52JavaScript 47Git 45.NET 45Agile 45Docker 42TypeScript 38Kubernetes 37PostgreSQL 36

Where the roles are

Brussels 93Antwerp 28Ghent 18Leuven 13Diegem 7Mechelen 5Kortrijk 4Zwijnaarde 4Anderlecht 4Zaventem 3

Backend roles that fit you

Tell us your stack once: new backend roles that fit it arrive in your matches every day.

Questions

Can a foreigner apply for these roles?

252 of the 253 roles here state no citizenship or security-check demand. A role that does says so in its advert, and the card marks it.

Which companies hire most backend developers?

European Dynamics (12), Smals (11), Alan (10), Cegeka (7), BNP Paribas Fortis (6).

Which roles count as backend developer jobs?

Every role whose work is the server side of software - backend, API, platform and full stack developers, staff engineers and technical leads - at any employer. A role is filed under a language when its title names one (Java, Python, .NET, Go, Node.js, PHP, C++, Ruby, Rust); a "Software Engineer" that names none is a backend engineer's.

How fresh is this?

Every role is re-checked on the employer's own careers board at least every 48 hours, and the page is rebuilt every night.

Source: 253 live postings on employers' careers boardsUpdated 29 Oct 2026MethodologyJSONCC BY-SA 4.0