SFEIR tech stack
SFEIR builds mostly with Python, Java, SQL, Scala. Its stack also includes GCP, Anthropic, Snowflake, FastAPI. GCP is named in 22 of the 24 job postings SFEIR published in the last 12 months (92%). Counted by Alion from the job postings of SFEIR, updated Sep 27, 2026.
What programming languages does SFEIR use?
Python is named in 63% of job postings at SFEIR, followed by Java (25%), SQL (13%), Scala (13%).
What frameworks and libraries does SFEIR use?
FastAPI is named in 33% of job postings at SFEIR, followed by LangChain (33%), LangGraph (21%), LiteLLM (21%).
FastAPI
8 33%
LangChain
8 33%
LangGraph
5 21%
LiteLLM
5 21%
Spring Boot
4 17%
Angular
2 8%
Quarkus
2 8%
Show all (13)
What databases does SFEIR use?
Snowflake is named in 50% of job postings at SFEIR, followed by BigQuery (8%), Google BigQuery (8%).
BigQuery 
What cloud and platforms does SFEIR use?
GCP is named in 92% of job postings at SFEIR, followed by Anthropic (83%), AWS (79%), Databricks (63%).
GCP
22 92%
AWS
19 79%
Databricks
15 63%
Scaleway
13 54%
Kubernetes
11 46%
Vertex AI
8 33%
Apache Kafka
5 21%
Show all (18)
What developer tools does SFEIR use?
Claude Code is named in 79% of job postings at SFEIR, followed by Docker (46%), dbt (29%), Cursor (13%).
Show all (13)
What AI and ML technologies does SFEIR use?
Claude is named in 50% of job postings at SFEIR, followed by LLM (46%), Gemini (8%).
Which engineering practices does SFEIR ask for?
Context Engineering is named in 46% of job postings at SFEIR, followed by RAG (46%), FinOps (29%), Platform Engineering (29%).
RAG
11 46%
FinOps
7 29%
Platform Engineering
7 29%
CI/CD
6 25%
AI Agents
4 17%
Show all (14)
What does each SFEIR team work with?
The technologies each team's postings require most often, with the number of postings that require them.
AI/ML
9 postingsBackend
8 postingsData Science
5 postingsHow does your stack fit SFEIR?
How is the SFEIR 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 SFEIR stack?
SFEIR 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: 3; legacy ones: 0.
How common is the SFEIR stack in its industry?
Share of the 2,054 companies in the same industries, whose stack Alion knows, that use each technology.
What sets SFEIR apart
Companies with a stack like SFEIR
Questions about the SFEIR tech stack
What programming languages does SFEIR use?
The languages named in SFEIR job postings are Python (63%), Java (25%), SQL (13%), Scala (13%), JavaScript (8%), as a share of the 24 postings of the last 12 months.
Does SFEIR use FastAPI?
Yes. FastAPI is named in 8 of 24 job postings (33%) and required in 8 of them.
What cloud and platforms does SFEIR use?
The cloud and platforms named in SFEIR job postings are GCP (22), Anthropic (20), AWS (19) (postings in brackets).
What skills do you need for a AI/ML job at SFEIR?
AI/ML postings at SFEIR most often require Claude Code (9), GCP (9), Python (9), AWS (8), out of 9 postings in the last 12 months.
Is the SFEIR tech stack changing?
Yes. Angular, TypeScript, Platform Engineering, Cursor first appeared in SFEIR job postings in the last six months.
How modern is the SFEIR tech stack?
SFEIR 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: 3; legacy ones: 0.
How does Alion know the SFEIR tech stack?
Alion reads every job posting SFEIR publishes and tags the technologies each one names. The figures on this page count the 24 postings of the last 12 months and were updated on Sep 27, 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, "SFEIR tech stack: 71 technologies from 24 job postings", as of Sep 27, 2026. https://alion.io/company/sfeir/technologies