SJ tech stack
SJ builds mostly with C++, Java, Python, SQL. Its stack also includes Azure, Databricks, Delta Lake, PostgreSQL. Azure is named in 3 of the 4 job postings SJ published in the last 12 months (75%). Counted by Alion from the job postings of SJ, updated Oct 13, 2026.
What programming languages does SJ use?
C++ is named in 25% of job postings at SJ, followed by Java (25%), Python (25%), SQL (25%).
What frameworks and libraries does SJ use?
JUnit is named in 25% of job postings at SJ, followed by Spring Boot (25%).
JUnit
1 25%
Spring Boot
1 25%
What databases does SJ use?
Delta Lake is named in 25% of job postings at SJ, followed by PostgreSQL (25%).
Delta Lake
1 25%
PostgreSQL
1 25%
What cloud and platforms does SJ use?
Azure is named in 75% of job postings at SJ, followed by Databricks (25%), Kubernetes (25%), Linux (25%).
What developer tools does SJ use?
Docker is named in 25% of job postings at SJ, followed by Git (25%), MQTT (25%), Terraform (25%).
Which engineering practices does SJ ask for?
CI/CD is named in 50% of job postings at SJ.
CI/CD
2 50%
How does your stack fit SJ?
How modern is the SJ stack?
SJ scores 79 out of 100 (Cutting-edge). 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 SJ stack in its industry?
Share of the 289 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like SJ
Questions about the SJ tech stack
What programming languages does SJ use?
The languages named in SJ job postings are C++ (25%), Java (25%), Python (25%), SQL (25%), as a share of the 4 postings of the last 12 months.
Does SJ use Azure?
Yes. Azure is named in 3 of 4 job postings (75%) and required in 3 of them.
What cloud and platforms does SJ use?
The cloud and platforms named in SJ job postings are Azure (3), Databricks (1), Kubernetes (1) (postings in brackets).
Is the SJ tech stack changing?
No new technology has appeared in SJ job postings in the last six months.
How modern is the SJ tech stack?
SJ scores 79 out of 100 (Cutting-edge). 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 SJ tech stack?
Alion reads every job posting SJ publishes and tags the technologies each one names. The figures on this page count the 4 postings of the last 12 months and were updated on Oct 13, 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, "SJ tech stack: 19 technologies from 4 job postings", as of Oct 13, 2026. https://alion.io/company/sj-2/technologies