Mercari tech stack
Mercari builds mostly with SQL, Python, Go, PHP. Its stack also includes GitHub, GCP, Google BigQuery, Google Cloud Spanner. GitHub is named in 55 of the 104 job postings Mercari published in the last 12 months (53%). Counted by Alion from the job postings of Mercari, updated Nov 11, 2026.
What programming languages does Mercari use?
SQL is named in 27% of job postings at Mercari, followed by Python (26%), Go (21%), PHP (11%).
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What frameworks and libraries does Mercari use?
PyTorch is named in 6% of job postings at Mercari, followed by Scikit-learn (5%), SwiftUI (4%), TensorFlow (4%).
PyTorch
6 6%
Scikit-learn
5 5%
SwiftUI
4 4%
TensorFlow
4 4%
Combine
3 3%
LightGBM
3 3%
Jetpack Compose
2 2%
NumPy
2 2%
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What databases does Mercari use?
Google BigQuery is named in 18% of job postings at Mercari, followed by Google Cloud Spanner (8%), MySQL (5%), PostgreSQL (4%).
Google BigQuery
19 18%
Google Cloud Spanner
8 8%
MySQL
5 5%
PostgreSQL
4 4%
ElasticSearch
3 3%
Redis
2 2%
TiDB
2 2%
Amazon Aurora
1 1%
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What cloud and platforms does Mercari use?
GitHub is named in 53% of job postings at Mercari, followed by GCP (39%), Kubernetes (28%), AWS (27%).
GitHub
55 53%
GCP
41 39%
Kubernetes
29 28%
AWS
28 27%
GitHub Actions
15 14%
Azure
12 12%
Dify
11 11%
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What developer tools does Mercari use?
Claude Code is named in 26% of job postings at Mercari, followed by Terraform (22%), Cursor (19%), OpenAI Codex (13%).
Claude Code
27 26%
Terraform
23 22%
Cursor
20 19%
gRPC
11 11%
Copilot
10 10%
Git
10 10%
Docker
10 10%
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What AI and ML technologies does Mercari use?
Claude is named in 24% of job postings at Mercari, followed by LLM (18%), Gemini (9%), ChatGPT (2%).
Which engineering practices does Mercari ask for?
CI/CD is named in 20% of job postings at Mercari, followed by Machine Learning (16%), AI Agents (16%), SLI/SLO/SLA (13%).
CI/CD
21 20%
AI Agents
17 16%
SLI/SLO/SLA
14 13%
FinOps
5 5%
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And 11 more, each named in fewer postings.
What other technologies does Mercari use?
Kotlin Coroutines is named in 1% of job postings at Mercari, followed by Swift Concurrency (1%).
Kotlin Coroutines
1 1%
Swift Concurrency
1 1%
What does each Mercari team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
23 postingsProduct
12 postingsAI/ML
10 postingsSecurity
8 postingsDevOps
5 postingsHow does your stack fit Mercari?
How is the Mercari 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 Mercari stack?
Mercari 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: 4; legacy ones: 0.
How common is the Mercari stack in its industry?
Share of the 730 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Mercari apart
Companies with a stack like Mercari
Questions about the Mercari tech stack
What programming languages does Mercari use?
The languages named in Mercari job postings are SQL (27%), Python (26%), Go (21%), PHP (11%), Swift (5%), as a share of the 104 postings of the last 12 months.
Does Mercari use PyTorch?
Yes. PyTorch is named in 6 of 104 job postings (6%) and required in 5 of them.
What cloud and platforms does Mercari use?
The cloud and platforms named in Mercari job postings are GitHub (55), GCP (41), Kubernetes (29) (postings in brackets).
What skills do you need for a Backend job at Mercari?
Backend postings at Mercari most often require GCP (14), Go (13), Kubernetes (12), Claude Code (10), out of 23 postings in the last 12 months.
Is the Mercari tech stack changing?
Yes. NumPy, Pandas, Informatica, Power BI first appeared in Mercari job postings in the last six months.
How modern is the Mercari tech stack?
Mercari 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: 4; legacy ones: 0.
How does Alion know the Mercari tech stack?
Alion reads every job posting Mercari publishes and tags the technologies each one names. The figures on this page count the 104 postings of the last 12 months and were updated on Nov 11, 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, "Mercari tech stack: 186 technologies from 104 job postings", as of Nov 11, 2026. https://alion.io/company/mercari/technologies