Belfius tech stack
Belfius builds mostly with SQL, Python, Java, SAS. Its stack also includes QlikSense, Azure. SQL is named in 8 of the 20 job postings Belfius published in the last 12 months (40%). Counted by Alion from the job postings of Belfius, updated Oct 18, 2026.
What programming languages does Belfius use?
SQL is named in 40% of job postings at Belfius, followed by Python (40%), Java (15%), SAS (5%).
SAS 
What cloud and platforms does Belfius use?
QlikSense is named in 25% of job postings at Belfius, followed by Azure (15%), Spark (10%), Azure DevOps (5%).
What developer tools does Belfius use?
Informatica is named in 20% of job postings at Belfius, followed by pySpark (10%), Copilot (5%), Git (5%).
Which engineering practices does Belfius ask for?
SLI/SLO/SLA is named in 15% of job postings at Belfius, followed by Incident Management (5%), Prompt Engineering (5%), RAG (5%).
What does each Belfius team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Finance
6 postingsAnalytics
4 postingsHow does your stack fit Belfius?
How modern is the Belfius stack?
Belfius scores 72 out of 100 (Modern). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 0; legacy ones: 0.
How common is the Belfius stack in its industry?
Share of the 960 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Belfius apart
Companies with a stack like Belfius
Kirey Group
16 shared technologies
Metyis
18 shared technologies
Navy Federal Credit Union
16 shared technologies
Circana
17 shared technologies
Deloitte Belgium
17 shared technologies
Intesa Sanpaolo
18 shared technologies
Health Care Service Corporation
17 shared technologies
GM Financial
17 shared technologies
Questions about the Belfius tech stack
What programming languages does Belfius use?
The languages named in Belfius job postings are SQL (40%), Python (40%), Java (15%), SAS (5%), Scala (5%), as a share of the 20 postings of the last 12 months.
Does Belfius use QlikSense?
Yes. QlikSense is named in 5 of 20 job postings (25%) and required in 5 of them.
What cloud and platforms does Belfius use?
The cloud and platforms named in Belfius job postings are QlikSense (5), Azure (3), Spark (2) (postings in brackets).
What skills do you need for a Finance job at Belfius?
Finance postings at Belfius most often require Python (4), SQL (3), Java (2), out of 6 postings in the last 12 months.
Is the Belfius tech stack changing?
No new technology has appeared in Belfius job postings in the last six months.
How modern is the Belfius tech stack?
Belfius scores 72 out of 100 (Modern). The score averages how current each technology in the stack is and adds weight for AI adoption. AI technologies in the stack: 0; legacy ones: 0.
How does Alion know the Belfius tech stack?
Alion reads every job posting Belfius publishes and tags the technologies each one names. The figures on this page count the 20 postings of the last 12 months and were updated on Oct 18, 2026.
Method and citation
Alion reads every job posting the company publishes and tags the technologies each one names. Shares count the postings of the last 12 months, open and closed; the company's own products are counted apart. How we count
Alion, "Belfius tech stack: 20 technologies from 20 job postings", as of Oct 18, 2026. https://alion.io/company/belfius-be/technologies