Happl tech stack
Happl builds mostly with SQL, Go, TypeScript, Python. Its stack also includes PostgreSQL. ChatGPT is named in 6 of the 6 job postings Happl published in the last 12 months (100%). Counted by Alion from the job postings of Happl, updated Oct 15, 2026.
What programming languages does Happl use?
SQL is named in 50% of job postings at Happl, followed by Go (33%), TypeScript (33%), Python (17%).
What databases does Happl use?
PostgreSQL is named in 33% of job postings at Happl.
PostgreSQL
2 33%
What developer tools does Happl use?
Rest API is named in 17% of job postings at Happl.
Rest API
1 17%
What AI and ML technologies does Happl use?
ChatGPT is named in 100% of job postings at Happl, followed by Claude (67%).
Which engineering practices does Happl ask for?
CI/CD is named in 33% of job postings at Happl.
CI/CD
2 33%
How does your stack fit Happl?
How modern is the Happl stack?
Happl scores 95 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: 2; legacy ones: 0.
How common is the Happl stack in its industry?
Share of the 376 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Happl
Questions about the Happl tech stack
What programming languages does Happl use?
The languages named in Happl job postings are SQL (50%), Go (33%), TypeScript (33%), Python (17%), as a share of the 6 postings of the last 12 months.
Does Happl use PostgreSQL?
Yes. PostgreSQL is named in 2 of 6 job postings (33%) and required in 2 of them.
Is the Happl tech stack changing?
No new technology has appeared in Happl job postings in the last six months.
How modern is the Happl tech stack?
Happl scores 95 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: 2; legacy ones: 0.
How does Alion know the Happl tech stack?
Alion reads every job posting Happl publishes and tags the technologies each one names. The figures on this page count the 6 postings of the last 12 months and were updated on Oct 15, 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, "Happl tech stack: 9 technologies from 6 job postings", as of Oct 15, 2026. https://alion.io/company/happl/technologies