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 193 of the 196 job postings Sierra published in the last 12 months (98%). Counted by Alion from the job postings of Sierra, updated Sep 27, 2026.
What programming languages does Sierra use?
TypeScript is named in 30% of job postings at Sierra, followed by Go (4%), 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%
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What databases does Sierra use?
Snowflake is named in 1% of job postings at Sierra, followed by PostgreSQL (1%), Trino (1%), BigQuery (1%).
BigQuery 
What cloud and platforms does Sierra use?
OpenAI is named in 98% of job postings at Sierra, followed by AWS (7%), Datadog (4%), Figma (4%).
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What developer tools does Sierra use?
Terraform is named in 5% of job postings at Sierra, followed by Prometheus (4%), Cursor (3%), Claude Code (3%).
Terraform
9 5%
Prometheus
7 4%
Cursor
6 3%
Claude Code
5 3%
GraphQL
5 3%
Adobe After Effects
1 1%
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What AI and ML technologies does Sierra use?
LLM is named in 26% of job postings at Sierra, followed by Claude (2%), ChatGPT (1%).
Which engineering practices does Sierra ask for?
Prompt Engineering is named in 18% of job postings at Sierra, followed by RAG (18%), CI/CD (6%), IAM (6%).
Prompt Engineering
36 18%
RAG
35 18%
CI/CD
11 6%
Platform Engineering
10 5%
Incident Management
7 4%
Show all (27)
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
52 postingsBackend
46 postingsProduct
20 postingsDesign
7 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: $300k across 172 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| OpenAI | 169 | $300k | 0% |
| TypeScript | 50 | $390k | +30% |
| LLM | 41 | $390k | +30% |
| AWS | 11 | $378k | +26% |
| Go | 7 | $390k | +30% |
| Figma | 7 | $220k | −27% |
| Datadog | 6 | $388k | +29% |
| Grafana | 6 | $388k | +29% |
| SQL | 6 | $234k | −22% |
| Python | 5 | $390k | +30% |
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 880 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 (30%), Go (4%), SQL (3%), Python (3%), JavaScript (2%), as a share of the 196 postings of the last 12 months.
Does Sierra use OpenAI Agents SDK?
Yes. OpenAI Agents SDK is named in 4 of 196 job postings (2%) and required in 4 of them.
What cloud and platforms does Sierra use?
The cloud and platforms named in Sierra job postings are OpenAI (193), AWS (14), Datadog (7) (postings in brackets).
What skills do you need for a Sales job at Sierra?
Sales postings at Sierra most often require OpenAI (52), SQL (3), Claude Code (2), Cursor (2), out of 52 postings in the last 12 months.
Is the Sierra tech stack changing?
Yes. Okta, Multimodal AI, Snowflake, A/B Testing 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 196 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, "Sierra tech stack: 85 technologies from 196 job postings", as of Sep 27, 2026. https://alion.io/company/sierra-ai/technologies