Safie tech stack
Safie builds mostly with Python, Java, C++, Go. Its stack also includes GitHub, AWS, MySQL, PostgreSQL. GitHub is named in 13 of the 23 job postings Safie published in the last 12 months (57%). Counted by Alion from the job postings of Safie, updated Oct 18, 2026.
What programming languages does Safie use?
Python is named in 43% of job postings at Safie, followed by Java (35%), C++ (22%), Go (17%).
Show all (9)
What frameworks and libraries does Safie use?
React.js is named in 13% of job postings at Safie, followed by Vue.js (13%), Angular (9%), PoC Library (9%).
React.js
3 13%
Vue.js
3 13%
Angular
2 9%
PyTorch
2 9%
PyTorch C++
2 9%
Combine
1 4%
Dagger
1 4%
Show all (19)
What databases does Safie use?
MySQL is named in 35% of job postings at Safie, followed by PostgreSQL (35%), Redis (35%), DynamoDB (22%).
MySQL
8 35%
PostgreSQL
8 35%
Redis
8 35%
DynamoDB
5 22%
ElasticSearch
3 13%
OpenSearch
1 4%
TiDB
1 4%
What cloud and platforms does Safie use?
GitHub is named in 57% of job postings at Safie, followed by AWS (52%), AWS Bedrock (52%), GitHub Actions (52%).
GitHub
13 57%
AWS
12 52%
AWS Bedrock
12 52%
GitHub Actions
12 52%
Datadog
8 35%
Grafana
8 35%
PagerDuty
8 35%
Show all (22)
What developer tools does Safie use?
Copilot is named in 100% of job postings at Safie, followed by Claude Code (96%), Ansible (35%), Docker (35%).
Copilot
23 100%
Claude Code
22 96%
Ansible
8 35%
Docker
8 35%
Fluent Bit
8 35%
Prometheus
8 35%
Terraform
8 35%
Fluentd
3 13%
Show all (18)
What AI and ML technologies does Safie use?
Gemini is named in 26% of job postings at Safie, followed by Claude (4%).
Which engineering practices does Safie ask for?
CI/CD is named in 52% of job postings at Safie.
CI/CD
12 52%
What other technologies does Safie use?
Kotlin Coroutines is named in 4% of job postings at Safie, followed by Swift Concurrency (4%).
Kotlin Coroutines
1 4%
Swift Concurrency
1 4%
What does each Safie team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Product
7 postingsBackend
3 postingsAI/ML
3 postingsFrontend
3 postingsHow does your stack fit Safie?
How modern is the Safie stack?
Safie scores 79 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 Safie stack in its industry?
Share of the 168 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Safie apart
Companies with a stack like Safie
Questions about the Safie tech stack
What programming languages does Safie use?
The languages named in Safie job postings are Python (43%), Java (35%), C++ (22%), Go (17%), JavaScript (13%), as a share of the 23 postings of the last 12 months.
Does Safie use React.js?
Yes. React.js is named in 3 of 23 job postings (13%) and required in 3 of them.
What cloud and platforms does Safie use?
The cloud and platforms named in Safie job postings are GitHub (13), AWS (12), AWS Bedrock (12) (postings in brackets).
What skills do you need for a Product job at Safie?
Product postings at Safie most often require Claude Code (7), Copilot (7), AWS (2), AWS Bedrock (2), out of 7 postings in the last 12 months.
Is the Safie tech stack changing?
No new technology has appeared in Safie job postings in the last six months.
How modern is the Safie tech stack?
Safie scores 79 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 Safie tech stack?
Alion reads every job posting Safie publishes and tags the technologies each one names. The figures on this page count the 23 postings of the last 12 months and were updated on Oct 18, 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, "Safie tech stack: 80 technologies from 23 job postings", as of Oct 18, 2026. https://alion.io/company/safie-co-jp/technologies