Holidaycheck tech stack
Holidaycheck builds mostly with Scala, JavaScript, SQL, Node JS. Its stack also includes Linux, Windows, ElasticSearch, Redis. Linux is named in 5 of the 6 job postings Holidaycheck published in the last 12 months (83%). Counted by Alion from the job postings of Holidaycheck, updated Oct 1, 2026.
What programming languages does Holidaycheck use?
Scala is named in 50% of job postings at Holidaycheck, followed by JavaScript (33%), SQL (33%), Node JS (33%).
Show all (11)
What frameworks and libraries does Holidaycheck use?
Jetpack Compose is named in 17% of job postings at Holidaycheck, followed by RxJava (17%).
Jetpack Compose
1 17%
RxJava
1 17%
What databases does Holidaycheck use?
ElasticSearch is named in 17% of job postings at Holidaycheck, followed by Redis (17%).
ElasticSearch
1 17%
Redis
1 17%
What cloud and platforms does Holidaycheck use?
Linux is named in 83% of job postings at Holidaycheck, followed by Windows (83%), GitHub (33%), Apache Kafka (17%).
Which engineering practices does Holidaycheck ask for?
CI/CD is named in 50% of job postings at Holidaycheck.
CI/CD
3 50%
What other technologies does Holidaycheck use?
Kotlin Coroutines is named in 17% of job postings at Holidaycheck.
Kotlin Coroutines
1 17%
How does your stack fit Holidaycheck?
How is the Holidaycheck 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 Holidaycheck stack?
Holidaycheck scores 81 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 Holidaycheck stack in its industry?
Share of the 385 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Holidaycheck apart
Companies with a stack like Holidaycheck
SMG Swiss Marketplace Group
18 shared technologies
Deltatre
18 shared technologies
DNS Technologies
19 shared technologies
Visit Health
19 shared technologies
Cape
18 shared technologies
Snapmint
18 shared technologies
Cambridge Mobile Telematics
18 shared technologies
Midnite
17 shared technologies
Questions about the Holidaycheck tech stack
What programming languages does Holidaycheck use?
The languages named in Holidaycheck job postings are Scala (50%), JavaScript (33%), SQL (33%), Node JS (33%), Go (17%), as a share of the 6 postings of the last 12 months.
Does Holidaycheck use Linux?
Yes. Linux is named in 5 of 6 job postings (83%) and required in 4 of them.
What cloud and platforms does Holidaycheck use?
The cloud and platforms named in Holidaycheck job postings are Linux (5), Windows (5), GitHub (2) (postings in brackets).
Is the Holidaycheck tech stack changing?
Yes. JavaScript, Node JS, CI/CD, GitHub first appeared in Holidaycheck job postings in the last six months.
How modern is the Holidaycheck tech stack?
Holidaycheck scores 81 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 Holidaycheck tech stack?
Alion reads every job posting Holidaycheck 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 1, 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, "Holidaycheck tech stack: 21 technologies from 6 job postings", as of Oct 1, 2026. https://alion.io/company/holidaycheck-2/technologies