KAYAK tech stack
KAYAK builds mostly with Java, SQL, Python, JavaScript. Its stack also includes Kubernetes, Trino, GitHub, MySQL. Java is named in 31 of the 89 job postings KAYAK published in the last 12 months (35%). Counted by Alion from the job postings of KAYAK, updated Nov 14, 2026.
What programming languages does KAYAK use?
Java is named in 35% of job postings at KAYAK, followed by SQL (29%), Python (26%), JavaScript (8%).
Java
31 35%
SQL
26 29%
Python
23 26%
JavaScript
7 8%
TypeScript
4 4%
Bash
1 1%
Kotlin
1 1%
Less
1 1%
Show all (9)
What frameworks and libraries does KAYAK use?
Spring Framework is named in 12% of job postings at KAYAK, followed by Flink (8%), Spring Boot (6%), React.js (4%).
Spring Framework
11 12%
Flink
7 8%
Spring Boot
5 6%
React.js
4 4%
Django
4 4%
Flask
4 4%
PyTorch
3 3%
JQuery
2 2%
Show all (11)
What databases does KAYAK use?
Trino is named in 15% of job postings at KAYAK, followed by MySQL (13%), ElasticSearch (10%), PostgreSQL (9%).
Trino
13 15%
MySQL
12 13%
ElasticSearch
9 10%
PostgreSQL
8 9%
Vertica
5 6%
Redis
5 6%
Amazon Redshift
4 4%
Apache Iceberg
2 2%
What cloud and platforms does KAYAK use?
Kubernetes is named in 22% of job postings at KAYAK, followed by GitHub (13%), AWS (10%), Apache Kafka (10%).
Kubernetes
20 22%
GitHub
12 13%
AWS
9 10%
Apache Kafka
9 10%
GitHub Actions
7 8%
Grafana
6 7%
Datadog
5 6%
Show all (29)
What developer tools does KAYAK use?
Docker is named in 15% of job postings at KAYAK, followed by Prometheus (8%), Git (8%), Microsoft Excel (4%).
Docker
13 15%
Prometheus
7 8%
Git
7 8%
Ansible
3 3%
Claude Code
3 3%
Rest API
3 3%
Terraform
3 3%
Show all (14)
What AI and ML technologies does KAYAK use?
LLM is named in 6% of job postings at KAYAK, followed by Claude (3%).
Which engineering practices does KAYAK ask for?
CI/CD is named in 35% of job postings at KAYAK, followed by Machine Learning (26%), A/B Testing (7%), Feature Store (6%).
CI/CD
31 35%
AI Agents
3 3%
Platform Engineering
3 3%
Show all (19)
What does each KAYAK team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
28 postingsLeadership
14 postingsData Science
10 postingsAI/ML
5 postingsHow does your stack fit KAYAK?
How much does KAYAK pay by technology?
Median stated pay of the postings that name each technology, against the median of all KAYAK postings with stated pay: $109k across 54 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| Java | 26 | $92k | −16% |
| SQL | 18 | $98k | −10% |
| Spring Framework | 11 | $90k | −18% |
| Python | 9 | $120k | +10% |
| MySQL | 9 | $110k | 0% |
| Kubernetes | 9 | $105k | −4% |
| ElasticSearch | 9 | $90k | −18% |
| GitHub | 6 | $153k | +40% |
| JavaScript | 6 | $105k | −4% |
| PostgreSQL | 5 | $106k | −3% |
How is the KAYAK 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 KAYAK stack?
KAYAK scores 80 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 KAYAK stack in its industry?
Share of the 501 companies in the same industries, whose stack Alion knows, that use each technology.
What sets KAYAK apart
Companies with a stack like KAYAK
Questions about the KAYAK tech stack
What programming languages does KAYAK use?
The languages named in KAYAK job postings are Java (35%), SQL (29%), Python (26%), JavaScript (8%), TypeScript (4%), as a share of the 89 postings of the last 12 months.
Does KAYAK use Spring Framework?
Yes. Spring Framework is named in 11 of 89 job postings (12%) and required in 11 of them.
What cloud and platforms does KAYAK use?
The cloud and platforms named in KAYAK job postings are Kubernetes (20), GitHub (12), AWS (9) (postings in brackets).
What skills do you need for a Backend job at KAYAK?
Backend postings at KAYAK most often require Java (26), Spring Framework (11), SQL (10), MySQL (8), out of 28 postings in the last 12 months.
Is the KAYAK tech stack changing?
Yes. Agentic Workflows, AI Agents, Arize Phoenix, Comet ML first appeared in KAYAK job postings in the last six months.
How modern is the KAYAK tech stack?
KAYAK scores 80 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 KAYAK tech stack?
Alion reads every job posting KAYAK publishes and tags the technologies each one names. The figures on this page count the 89 postings of the last 12 months and were updated on Nov 14, 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, "KAYAK tech stack: 92 technologies from 89 job postings", as of Nov 14, 2026. https://alion.io/company/kayak/technologies