Billennium tech stack
Billennium builds mostly with SQL, Python, C#, Java. Its stack also includes AWS, Snowflake, Azure, PostgreSQL. AWS is named in 66 of the 79 job postings Billennium published in the last 12 months (84%). Counted by Alion from the job postings of Billennium, updated Nov 12, 2026.
What programming languages does Billennium use?
SQL is named in 53% of job postings at Billennium, followed by Python (23%), C# (19%), Java (16%).
SQL
42 53%
Python
18 23%
C#
15 19%
Java
13 16%
JavaScript
13 16%
TypeScript
9 11%
ABAP
4 5%
PowerShell
4 5%
Show all (15)
What frameworks and libraries does Billennium use?
Selenium is named in 15% of job postings at Billennium, followed by Playwright (10%), Angular (8%), Rest-Assured (8%).
Selenium
12 15%
Playwright
8 10%
Angular
6 8%
Rest-Assured
6 8%
TestNG
5 6%
ASP.NET Core
4 5%
Hibernate
4 5%
JUnit
4 5%
Show all (51)
And 11 more, each named in fewer postings.
What databases does Billennium use?
Snowflake is named in 81% of job postings at Billennium, followed by PostgreSQL (16%), MS SQL (10%), Oracle (5%).
Snowflake
64 81%
PostgreSQL
13 16%
MS SQL
8 10%
Oracle
4 5%
Azure Cosmos DB
4 5%
MySQL
4 5%
Azure SQL Database
2 3%
Cassandra
2 3%
Show all (17)
What cloud and platforms does Billennium use?
AWS is named in 84% of job postings at Billennium, followed by Azure (34%), Postman (16%), Kubernetes (14%).
AWS
66 84%
Azure
27 34%
Postman
13 16%
Kubernetes
11 14%
.NET
10 13%
Azure DevOps
8 10%
GCP
7 9%
GitLab CI
5 6%
Show all (52)
And 12 more, each named in fewer postings.
What developer tools does Billennium use?
Git is named in 25% of job postings at Billennium, followed by Rest API (20%), Docker (20%), SoapUI (14%).
Git
20 25%
Rest API
16 20%
Docker
16 20%
SoapUI
11 14%
JMeter
10 13%
Jenkins
9 11%
Terraform
7 9%
TestRail
5 6%
Show all (41)
And 1 more, each named in fewer postings.
What AI and ML technologies does Billennium use?
LLM is named in 9% of job postings at Billennium.
LLM
7 9%
Which engineering practices does Billennium ask for?
CI/CD is named in 35% of job postings at Billennium, followed by ETL/ELT (8%), Machine Learning (8%), SOAP (6%).
CI/CD
28 35%
RAG
5 6%
Prompt Engineering
2 3%
Show all (28)
What does each Billennium team work with?
The technologies each team's postings require most often, with the number of postings that require them.
QA
19 postingsBackend
15 postingsData Science
11 postingsAnalytics
7 postingsAI/ML
6 postingsEnterprise Apps
6 postingsHow does your stack fit Billennium?
How is the Billennium stack changing?
Read from the dates of the postings themselves: a technology is new when the first posting that names it appeared in the last six months, rising or falling when its share of postings moved between the last two quarters.
How modern is the Billennium stack?
Billennium 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: 1; legacy ones: 0.
How common is the Billennium stack in its industry?
Share of the 9,060 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Billennium apart
Companies with a stack like Billennium
Dellent Consulting
147 shared technologies
Astek Polska
139 shared technologies
Vivantify Technology Solutions
140 shared technologies
Netcompany
142 shared technologies
European Dynamics
144 shared technologies
CGI
149 shared technologies
Tieto
149 shared technologies
Everience
156 shared technologies
Questions about the Billennium tech stack
What programming languages does Billennium use?
The languages named in Billennium job postings are SQL (53%), Python (23%), C# (19%), Java (16%), JavaScript (16%), as a share of the 79 postings of the last 12 months.
Does Billennium use Selenium?
Yes. Selenium is named in 12 of 79 job postings (15%) and required in 10 of them.
What cloud and platforms does Billennium use?
The cloud and platforms named in Billennium job postings are AWS (66), Azure (27), Postman (13) (postings in brackets).
What skills do you need for a QA job at Billennium?
QA postings at Billennium most often require SQL (14), Postman (11), AWS (9), Selenium (9), out of 19 postings in the last 12 months.
Is the Billennium tech stack changing?
Yes. Microsoft Fabric, Unix, ElasticSearch, Dapper first appeared in Billennium job postings in the last six months.
How modern is the Billennium tech stack?
Billennium 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: 1; legacy ones: 0.
How does Alion know the Billennium tech stack?
Alion reads every job posting Billennium publishes and tags the technologies each one names. The figures on this page count the 79 postings of the last 12 months and were updated on Nov 12, 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, "Billennium tech stack: 205 technologies from 79 job postings", as of Nov 12, 2026. https://alion.io/company/billennium/technologies