iFellow tech stack
iFellow builds mostly with SQL, Java, 1C, C#. Its stack also includes Apache Kafka, Postman, MySQL, PostgreSQL. SQL is named in 6 of the 15 job postings iFellow published in the last 12 months (40%). Counted by Alion from the job postings of iFellow, updated Oct 1, 2026.
What programming languages does iFellow use?
SQL is named in 40% of job postings at iFellow, followed by Java (20%), 1C (13%), C# (13%).
1C 
What frameworks and libraries does iFellow use?
Playwright is named in 7% of job postings at iFellow, followed by Pytest (7%).
Playwright
1 7%
Pytest
1 7%
What databases does iFellow use?
MySQL is named in 13% of job postings at iFellow, followed by PostgreSQL (13%), MS SQL (7%), Redis (7%).
What cloud and platforms does iFellow use?
Apache Kafka is named in 40% of job postings at iFellow, followed by Postman (33%), Kubernetes (20%), Linux (13%).
Apache Kafka
6 40%
Postman
5 33%
Kubernetes
3 20%
.NET
1 7%
Figma
1 7%
OpenShift
1 7%
Show all (11)
What developer tools does iFellow use?
Rest API is named in 27% of job postings at iFellow, followed by Swagger (27%), Docker (13%), Ansible (7%).
Show all (11)
What AI and ML technologies does iFellow use?
LLM is named in 7% of job postings at iFellow.
LLM
1 7%
Which engineering practices does iFellow ask for?
SOAP is named in 13% of job postings at iFellow, followed by TCP/IP (13%), AI Agents (7%), CI/CD (7%).
What does each iFellow team work with?
The technologies each team's postings require most often, with the number of postings that require them.
QA
5 postingsAnalytics
3 postingsHow does your stack fit iFellow?
How modern is the iFellow stack?
iFellow 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: 1; legacy ones: 0.
How common is the iFellow stack in its industry?
Share of the 1,903 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like iFellow
Questions about the iFellow tech stack
What programming languages does iFellow use?
The languages named in iFellow job postings are SQL (40%), Java (20%), 1C (13%), C# (13%), Python (13%), as a share of the 15 postings of the last 12 months.
Does iFellow use Apache Kafka?
Yes. Apache Kafka is named in 6 of 15 job postings (40%) and required in 6 of them.
What cloud and platforms does iFellow use?
The cloud and platforms named in iFellow job postings are Apache Kafka (6), Postman (5), Kubernetes (3) (postings in brackets).
What skills do you need for a QA job at iFellow?
QA postings at iFellow most often require Postman (5), Apache Kafka (3), Rest API (2), SQL (2), out of 5 postings in the last 12 months.
Is the iFellow tech stack changing?
No new technology has appeared in iFellow job postings in the last six months.
How modern is the iFellow tech stack?
iFellow 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: 1; legacy ones: 0.
How does Alion know the iFellow tech stack?
Alion reads every job posting iFellow publishes and tags the technologies each one names. The figures on this page count the 15 postings of the last 12 months and were updated on Oct 1, 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, "iFellow tech stack: 43 technologies from 15 job postings", as of Oct 1, 2026. https://alion.io/company/ifellow/technologies