Sierra tech stack
Sierra builds mostly with TypeScript, Go, SQL, Python. Its stack also includes OpenAI, AWS, OpenAI Agents SDK, React.js. OpenAI is named in 259 of the 263 job postings Sierra published in the last 12 months (98%). Counted by Alion from the job postings of Sierra, updated Nov 11, 2026.
What programming languages does Sierra use?
TypeScript is named in 23% of job postings at Sierra, followed by Go (3%), SQL (3%), Python (3%).
What frameworks and libraries does Sierra use?
OpenAI Agents SDK is named in 2% of job postings at Sierra, followed by React.js (2%), Apache ECharts (<1%), D3.js (<1%).
React.js
4 2%
Apache ECharts
1 <1%
D3.js
1 <1%
Flink
1 <1%
LangGraph
1 <1%
Lottie
1 <1%
OpenTelemetry
1 <1%
Show all (11)
What databases does Sierra use?
Snowflake is named in 1% of job postings at Sierra, followed by PostgreSQL (<1%), Trino (<1%), ClickHouse (<1%).
Snowflake
2 1%
PostgreSQL
1 <1%
Trino
1 <1%
ClickHouse
1 <1%
DynamoDB
1 <1%
Google BigQuery
1 <1%
Google Cloud Spanner
1 <1%
What cloud and platforms does Sierra use?
OpenAI is named in 98% of job postings at Sierra, followed by AWS (6%), Figma (3%), GCP (3%).
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What developer tools does Sierra use?
Terraform is named in 4% of job postings at Sierra, followed by Cursor (3%), Claude Code (3%), Prometheus (2%).
Terraform
10 4%
Cursor
8 3%
Claude Code
7 3%
Prometheus
6 2%
GraphQL
5 2%
Adobe After Effects
1 <1%
Show all (15)
What AI and ML technologies does Sierra use?
LLM is named in 21% of job postings at Sierra, followed by Claude (2%), ChatGPT (1%).
Which engineering practices does Sierra ask for?
Prompt Engineering is named in 15% of job postings at Sierra, followed by RAG (15%), IAM (4%), Platform Engineering (4%).
Prompt Engineering
40 15%
RAG
39 15%
Platform Engineering
11 4%
CI/CD
11 4%
Incident Management
7 3%
Show all (29)
What does each Sierra team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Sales
66 postingsBackend
53 postingsProduct
21 postingsHow does your stack fit Sierra?
How much does Sierra pay by technology?
Median stated pay of the postings that name each technology, against the median of all Sierra postings with stated pay: $290k across 226 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| OpenAI | 222 | $290k | 0% |
| TypeScript | 51 | $390k | +34% |
| LLM | 43 | $390k | +34% |
| AWS | 12 | $336k | +16% |
| Go | 8 | $390k | +34% |
| SQL | 8 | $235k | −19% |
| Figma | 8 | $220k | −24% |
| Python | 6 | $310k | +7% |
| Azure | 6 | $290k | 0% |
| GCP | 6 | $268k | −8% |
How is the Sierra 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 Sierra stack?
Sierra scores 83 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 Sierra stack in its industry?
Share of the 2,041 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Sierra apart
Sierra products in its job postings
Postings at Sierra name its own products. They describe what the company makes, so they are left out of the stack above.
Companies with a stack like Sierra
Questions about the Sierra tech stack
What programming languages does Sierra use?
The languages named in Sierra job postings are TypeScript (23%), Go (3%), SQL (3%), Python (3%), JavaScript (2%), as a share of the 263 postings of the last 12 months.
Does Sierra use OpenAI Agents SDK?
Yes. OpenAI Agents SDK is named in 5 of 263 job postings (2%) and required in 5 of them.
What cloud and platforms does Sierra use?
The cloud and platforms named in Sierra job postings are OpenAI (259), AWS (15), Figma (8) (postings in brackets).
What skills do you need for a Sales job at Sierra?
Sales postings at Sierra most often require OpenAI (66), SQL (4), Claude Code (3), Cursor (3), out of 66 postings in the last 12 months.
Is the Sierra tech stack changing?
Yes. Reinforcement Learning, SFT, Post-training, Twilio first appeared in Sierra job postings in the last six months.
How modern is the Sierra tech stack?
Sierra scores 83 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 Sierra tech stack?
Alion reads every job posting Sierra publishes and tags the technologies each one names. The figures on this page count the 263 postings of the last 12 months and were updated on Nov 11, 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, "Sierra tech stack: 97 technologies from 263 job postings", as of Nov 11, 2026. https://alion.io/company/sierra-ai/technologies