Firstsourc tech stack
Firstsourc builds mostly with Apex, C#, C++, Java. Its stack also includes AWS, Azure, PostgreSQL. AWS is named in 3 of the 3 job postings Firstsourc published in the last 12 months (100%). Counted by Alion from the job postings of Firstsourc, updated Oct 21, 2026.
What programming languages does Firstsourc use?
Apex is named in 67% of job postings at Firstsourc, followed by C# (33%), C++ (33%), Java (33%).
C# 
What databases does Firstsourc use?
PostgreSQL is named in 33% of job postings at Firstsourc.
PostgreSQL
1 33%
What cloud and platforms does Firstsourc use?
AWS is named in 100% of job postings at Firstsourc, followed by Azure (100%), GCP (67%), MuleSoft (67%).
AWS
3 100%
Azure
3 100%
GCP
2 67%
Apache Kafka
1 33%
Azure DevOps
1 33%
RabbitMQ
1 33%
Show all (10)
What developer tools does Firstsourc use?
Informatica is named in 67% of job postings at Firstsourc, followed by Terraform (67%), Ansible (33%), FHIR (33%).
Terraform
2 67%
Ansible
1 33%
Git
1 33%
Jenkins
1 33%
Rest API
1 33%
Show all (10)
Which engineering practices does Firstsourc ask for?
CI/CD is named in 100% of job postings at Firstsourc, followed by ETL/ELT (67%), IAM (33%), SOAP (33%).
How does your stack fit Firstsourc?
How modern is the Firstsourc stack?
Firstsourc scores 70 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 Firstsourc stack in its industry?
Share of the 154 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Firstsourc
Firstsource
30 shared technologies
Infinite
29 shared technologies
GeekSoft Consulting
27 shared technologies
Keyloop
28 shared technologies
HealthEdge
30 shared technologies
Entarian
28 shared technologies
AST SpaceMobile
29 shared technologies
Federal Reserve Financial Services
28 shared technologies
Questions about the Firstsourc tech stack
What programming languages does Firstsourc use?
The languages named in Firstsourc job postings are Apex (67%), C# (33%), C++ (33%), Java (33%), Python (33%), as a share of the 3 postings of the last 12 months.
Does Firstsourc use AWS?
Yes. AWS is named in 3 of 3 job postings (100%) and required in 2 of them.
What cloud and platforms does Firstsourc use?
The cloud and platforms named in Firstsourc job postings are AWS (3), Azure (3), GCP (2) (postings in brackets).
Is the Firstsourc tech stack changing?
No new technology has appeared in Firstsourc job postings in the last six months.
How modern is the Firstsourc tech stack?
Firstsourc scores 70 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 Firstsourc tech stack?
Alion reads every job posting Firstsourc publishes and tags the technologies each one names. The figures on this page count the 3 postings of the last 12 months and were updated on Oct 21, 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, "Firstsourc tech stack: 32 technologies from 3 job postings", as of Oct 21, 2026. https://alion.io/company/firstsourc/technologies