Sia tech stack
Sia builds mostly with Python, SQL, Java, C++. Its stack also includes Azure, AWS, PostgreSQL, LangChain. Azure is named in 382 of the 548 job postings Sia published in the last 12 months (70%). Counted by Alion from the job postings of Sia, updated Nov 13, 2026.
What programming languages does Sia use?
Python is named in 62% of job postings at Sia, followed by SQL (31%), Java (20%), C++ (18%).
Python
339 62%
SQL
171 31%
Java
109 20%
C++
96 18%
PowerShell
64 12%
Ruby
61 11%
Scala
43 8%
JavaScript
19 3%
Show all (15)
What frameworks and libraries does Sia use?
LangChain is named in 14% of job postings at Sia, followed by LlamaIndex (9%), Hadoop (7%), Flask (5%).
LangChain
74 14%
LlamaIndex
50 9%
Hadoop
38 7%
Flask
30 5%
Anthropic SDK
28 5%
OpenAI SDK
28 5%
TensorFlow
27 5%
LangGraph
26 5%
Show all (49)
And 9 more, each named in fewer postings.
What databases does Sia use?
PostgreSQL is named in 20% of job postings at Sia, followed by Snowflake (10%), Pinecone (1%), Amazon Redshift (1%).
PostgreSQL
111 20%
Snowflake
56 10%
Pinecone
7 1%
Amazon Redshift
5 1%
Neo4j
4 1%
Chroma
4 1%
OpenSearch
4 1%
Milvus
3 1%
Show all (14)
What cloud and platforms does Sia use?
Azure is named in 70% of job postings at Sia, followed by AWS (69%), GCP (65%), Databricks (22%).
Azure
382 70%
AWS
379 69%
GCP
357 65%
Databricks
119 22%
Kubernetes
103 19%
Power BI
68 12%
Show all (39)
What developer tools does Sia use?
Docker is named in 20% of job postings at Sia, followed by Terraform (15%), Git (9%), Rest API (9%).
Docker
109 20%
Terraform
82 15%
Git
49 9%
Rest API
47 9%
Copilot
25 5%
Model Context Protocol
14 3%
Show all (29)
What AI and ML technologies does Sia use?
Claude is named in 14% of job postings at Sia, followed by LLM (9%), Mistral (5%), Gemini (4%).
Show all (11)
Which engineering practices does Sia ask for?
Machine Learning is named in 39% of job postings at Sia, followed by CI/CD (28%), Computer Vision (17%), NLP (13%).
CI/CD
156 28%
Computer Vision
92 17%
NLP
69 13%
RAG
68 12%
Time Series
65 12%
AI Agents
50 9%
Show all (47)
And 7 more, each named in fewer postings.
What does each Sia team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Data Science
201 postingsSecurity
91 postingsAI/ML
71 postingsAnalytics
30 postingsSolutions
28 postingsBackend
24 postingsHow does your stack fit Sia?
How much does Sia pay by technology?
Median stated pay of the postings that name each technology, against the median of all Sia postings with stated pay: $130k across 86 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| Azure | 49 | $136k | +5% |
| AWS | 44 | $135k | +4% |
| GCP | 40 | $135k | +4% |
| Python | 34 | $133k | +3% |
| OpenAI | 30 | $135k | +4% |
| Claude | 25 | $128k | −2% |
| LangChain | 24 | $144k | +11% |
| Anthropic | 23 | $132k | +2% |
| LLM | 19 | $132k | +2% |
| LlamaIndex | 19 | $132k | +2% |
How is the Sia 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 Sia stack?
Sia scores 84 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: 11; legacy ones: 0.
How common is the Sia stack in its industry?
Share of the 2,985 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Sia apart
Companies with a stack like Sia
Questions about the Sia tech stack
What programming languages does Sia use?
The languages named in Sia job postings are Python (62%), SQL (31%), Java (20%), C++ (18%), PowerShell (12%), as a share of the 548 postings of the last 12 months.
Does Sia use LangChain?
Yes. LangChain is named in 74 of 548 job postings (14%) and required in 73 of them.
What cloud and platforms does Sia use?
The cloud and platforms named in Sia job postings are Azure (382), AWS (379), GCP (357) (postings in brackets).
What skills do you need for a Data Science job at Sia?
Data Science postings at Sia most often require Azure (154), AWS (149), GCP (149), Python (123), out of 201 postings in the last 12 months.
Is the Sia tech stack changing?
Yes. CyberArk, Azure AKS, Bicep, Semantic Kernel first appeared in Sia job postings in the last six months.
How modern is the Sia tech stack?
Sia scores 84 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: 11; legacy ones: 0.
How does Alion know the Sia tech stack?
Alion reads every job posting Sia publishes and tags the technologies each one names. The figures on this page count the 548 postings of the last 12 months and were updated on Nov 13, 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, "Sia tech stack: 204 technologies from 548 job postings", as of Nov 13, 2026. https://alion.io/company/sia/technologies