OSON tech stack
OSON builds mostly with JavaScript, Python, SQL, TypeScript. Its stack also includes PostgreSQL, Apache Kafka, FastAPI, Next.js. PostgreSQL is named in 3 of the 9 job postings OSON published in the last 12 months (33%). Counted by Alion from the job postings of OSON, updated Sep 26, 2026.
What programming languages does OSON use?
JavaScript is named in 22% of job postings at OSON, followed by Python (22%), SQL (22%), TypeScript (22%).
1C What frameworks and libraries does OSON use?
FastAPI is named in 22% of job postings at OSON, followed by Next.js (22%), PoC Library (22%), React.js (22%).
FastAPI
2 22%
Next.js
2 22%
React.js
2 22%
Hibernate
1 11%
Spring Boot
1 11%
Spring Framework
1 11%
UIKit
1 11%
What databases does OSON use?
PostgreSQL is named in 33% of job postings at OSON, followed by Redis (11%).
PostgreSQL
3 33%
Redis
1 11%
What cloud and platforms does OSON use?
Apache Kafka is named in 22% of job postings at OSON, followed by AppsFlyer SDK (11%), DLP (11%), Figma (11%).
Apache Kafka
2 22%
AppsFlyer SDK
1 11%
Figma
1 11%
Firebase
1 11%
Kubernetes
1 11%
Postman
1 11%
RabbitMQ
1 11%
Show all (9)
What developer tools does OSON use?
Rest API is named in 22% of job postings at OSON, followed by Adobe Illustrator (11%), Adobe Photoshop (11%), Docker (11%).
Rest API
2 22%
Adobe Illustrator
1 11%
Adobe Photoshop
1 11%
Docker
1 11%
Git
1 11%
Swagger
1 11%
JMeter
1 11%
k6
1 11%
What AI and ML technologies does OSON use?
Claude is named in 22% of job postings at OSON, followed by LLM (22%).
Which engineering practices does OSON ask for?
CI/CD is named in 33% of job postings at OSON, followed by AI Agents (22%), Material Design (11%).
What does each OSON team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
3 postingsHow does your stack fit OSON?
How modern is the OSON stack?
OSON scores 87 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 OSON stack in its industry?
Share of the 305 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like OSON
Questions about the OSON tech stack
What programming languages does OSON use?
The languages named in OSON job postings are JavaScript (22%), Python (22%), SQL (22%), TypeScript (22%), Java (11%), as a share of the 9 postings of the last 12 months.
Does OSON use FastAPI?
Yes. FastAPI is named in 2 of 9 job postings (22%) and required in 2 of them.
What cloud and platforms does OSON use?
The cloud and platforms named in OSON job postings are Apache Kafka (2), AppsFlyer SDK (1), DLP (1) (postings in brackets).
What skills do you need for a Backend job at OSON?
Backend postings at OSON most often require PostgreSQL (3), Claude (2), FastAPI (2), JavaScript (2), out of 3 postings in the last 12 months.
Is the OSON tech stack changing?
No new technology has appeared in OSON job postings in the last six months.
How modern is the OSON tech stack?
OSON scores 87 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 OSON tech stack?
Alion reads every job posting OSON publishes and tags the technologies each one names. The figures on this page count the 9 postings of the last 12 months and were updated on Sep 26, 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, "OSON tech stack: 39 technologies from 9 job postings", as of Sep 26, 2026. https://alion.io/company/oson/technologies