BT Group tech stack
BT Group builds mostly with Python, Java, Node JS, JavaScript. Its stack also includes Apache Kafka, AWS, ElasticSearch, Neo4j. Python is named in 2 of the 4 job postings BT Group published in the last 12 months (50%). Counted by Alion from the job postings of BT Group, updated Oct 9, 2026.
What programming languages does BT Group use?
Python is named in 50% of job postings at BT Group, followed by Java (25%), Node JS (25%), JavaScript (25%).
What frameworks and libraries does BT Group use?
DeepEval is named in 25% of job postings at BT Group, followed by FAISS (25%), FastAPI (25%), LangChain (25%).
DeepEval
1 25%
FAISS
1 25%
FastAPI
1 25%
LangChain
1 25%
LangGraph
1 25%
PyTorch
1 25%
Pydantic
1 25%
Sentence-Transformers
1 25%
Show all (10)
What databases does BT Group use?
ElasticSearch is named in 25% of job postings at BT Group, followed by Neo4j (25%), Pinecone (25%), PostgreSQL (25%).
What cloud and platforms does BT Group use?
Apache Kafka is named in 50% of job postings at BT Group, followed by AWS (25%), AWS Bedrock (25%), Azure (25%).
Apache Kafka
2 50%
AWS
1 25%
AWS Bedrock
1 25%
Azure
1 25%
Dynatrace
1 25%
NATS
1 25%
Show all (9)
What developer tools does BT Group use?
Ansible is named in 25% of job postings at BT Group, followed by Copilot (25%), Cursor (25%), Model Context Protocol (25%).
What AI and ML technologies does BT Group use?
LLM is named in 50% of job postings at BT Group, followed by Claude (25%), LoRA (25%), QLoRA (25%).
Which engineering practices does BT Group ask for?
AI Agents is named in 75% of job postings at BT Group, followed by Prompt Engineering (75%), RAG (75%), CI/CD (50%).
AI Agents
3 75%
Prompt Engineering
3 75%
RAG
3 75%
CI/CD
2 50%
Hallucination
2 50%
Chain-of-Thought
1 25%
Embeddings
1 25%
Show all (20)
How does your stack fit BT Group?
How modern is the BT Group stack?
BT Group scores 89 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: 5; legacy ones: 0.
How common is the BT Group stack in its industry?
Share of the 363 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like BT Group
Questions about the BT Group tech stack
What programming languages does BT Group use?
The languages named in BT Group job postings are Python (50%), Java (25%), Node JS (25%), JavaScript (25%), as a share of the 4 postings of the last 12 months.
Does BT Group use Apache Kafka?
Yes. Apache Kafka is named in 2 of 4 job postings (50%) and required in 2 of them.
What cloud and platforms does BT Group use?
The cloud and platforms named in BT Group job postings are Apache Kafka (2), AWS (1), AWS Bedrock (1) (postings in brackets).
Is the BT Group tech stack changing?
No new technology has appeared in BT Group job postings in the last six months.
How modern is the BT Group tech stack?
BT Group scores 89 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: 5; legacy ones: 0.
How does Alion know the BT Group tech stack?
Alion reads every job posting BT Group publishes and tags the technologies each one names. The figures on this page count the 4 postings of the last 12 months and were updated on Oct 9, 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, "BT Group tech stack: 60 technologies from 4 job postings", as of Oct 9, 2026. https://alion.io/company/bt-group/technologies