Klaviyo tech stack
Klaviyo builds mostly with Python, SQL, JavaScript, Go. Its stack also includes AWS, Django, Kubernetes, Redis. Python is named in 41 of the 167 job postings Klaviyo published in the last 12 months (25%). Counted by Alion from the job postings of Klaviyo, updated Sep 30, 2026.
What programming languages does Klaviyo use?
Python is named in 25% of job postings at Klaviyo, followed by SQL (7%), JavaScript (7%), Go (6%).
Python
41 25%
SQL
12 7%
JavaScript
11 7%
Go
10 6%
TypeScript
10 6%
Apex
5 3%
Java
3 2%
PowerShell
3 2%
Show all (14)
What frameworks and libraries does Klaviyo use?
Django is named in 13% of job postings at Klaviyo, followed by React.js (5%), Celery (5%), FastAPI (5%).
Django
21 13%
React.js
9 5%
Celery
8 5%
FastAPI
8 5%
LangChain
5 3%
Flink
3 2%
Pytest
3 2%
Matplotlib
2 1%
Show all (35)
What databases does Klaviyo use?
Redis is named in 11% of job postings at Klaviyo, followed by MySQL (11%), Amazon Aurora (5%), Memcached (5%).
Redis
19 11%
MySQL
19 11%
Amazon Aurora
9 5%
Memcached
8 5%
Snowflake
5 3%
DynamoDB
3 2%
BigQuery
2 1%
Google BigQuery
2 1%
Show all (11)
What cloud and platforms does Klaviyo use?
AWS is named in 21% of job postings at Klaviyo, followed by Kubernetes (12%), Apache Kafka (10%), RabbitMQ (8%).
AWS
35 21%
Kubernetes
20 12%
Apache Kafka
16 10%
RabbitMQ
13 8%
Amazon EC2
13 8%
Apache Pulsar
9 5%
GitHub
8 5%
Tableau
6 4%
Show all (34)
What developer tools does Klaviyo use?
Terraform is named in 17% of job postings at Klaviyo, followed by Cursor (4%), Copilot (4%), Rest API (4%).
Show all (21)
What AI and ML technologies does Klaviyo use?
LLM is named in 13% of job postings at Klaviyo, followed by Claude (10%), ChatGPT (5%), Gemini (1%).
Which engineering practices does Klaviyo ask for?
Human-in-the-Loop is named in 100% of job postings at Klaviyo, followed by AI Agents (11%), CI/CD (9%), Prompt Engineering (6%).
AI Agents
18 11%
CI/CD
15 9%
Prompt Engineering
10 6%
Show all (39)
What does each Klaviyo team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
24 postingsSolutions
10 postingsHow does your stack fit Klaviyo?
How much does Klaviyo pay by technology?
Median stated pay of the postings that name each technology, against the median of all Klaviyo postings with stated pay: $192k across 143 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| Python | 39 | $198k | +3% |
| AWS | 34 | $210k | +9% |
| LLM | 21 | $168k | −13% |
| Kubernetes | 20 | $222k | +16% |
| Django | 20 | $207k | +8% |
| MySQL | 18 | $174k | −9% |
| Redis | 18 | $174k | −9% |
| Apache Kafka | 16 | $210k | +9% |
| Claude | 16 | $171k | −11% |
| Amazon EC2 | 12 | $168k | −13% |
How is the Klaviyo 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 Klaviyo stack?
Klaviyo scores 83 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: 4; legacy ones: 0.
How common is the Klaviyo stack in its industry?
Share of the 2,433 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Klaviyo apart
Companies with a stack like Klaviyo
Questions about the Klaviyo tech stack
What programming languages does Klaviyo use?
The languages named in Klaviyo job postings are Python (25%), SQL (7%), JavaScript (7%), Go (6%), TypeScript (6%), as a share of the 167 postings of the last 12 months.
Does Klaviyo use Django?
Yes. Django is named in 21 of 167 job postings (13%) and required in 3 of them.
What cloud and platforms does Klaviyo use?
The cloud and platforms named in Klaviyo job postings are AWS (35), Kubernetes (20), Apache Kafka (16) (postings in brackets).
What skills do you need for a Backend job at Klaviyo?
Backend postings at Klaviyo most often require Python (16), AWS (8), Go (7), Kubernetes (7), out of 24 postings in the last 12 months.
Is the Klaviyo tech stack changing?
Yes. ISO 42001, NIST AI RMF, Agentforce, CrewAI first appeared in Klaviyo job postings in the last six months.
How modern is the Klaviyo tech stack?
Klaviyo scores 83 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: 4; legacy ones: 0.
How does Alion know the Klaviyo tech stack?
Alion reads every job posting Klaviyo publishes and tags the technologies each one names. The figures on this page count the 167 postings of the last 12 months and were updated on Sep 30, 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, "Klaviyo tech stack: 158 technologies from 167 job postings", as of Sep 30, 2026. https://alion.io/company/klaviyo/technologies