BILL tech stack
BILL builds mostly with SQL, Python, Java, JavaScript. Its stack also includes Tableau, AWS, DynamoDB, MySQL. SQL is named in 19 of the 56 job postings BILL published in the last 12 months (34%). Counted by Alion from the job postings of BILL, updated Nov 11, 2026.
What programming languages does BILL use?
SQL is named in 34% of job postings at BILL, followed by Python (27%), Java (7%), JavaScript (7%).
Show all (9)
What frameworks and libraries does BILL use?
Flink is named in 4% of job postings at BILL, followed by Angular (2%), Lottie (2%), Pact (2%).
What databases does BILL use?
DynamoDB is named in 7% of job postings at BILL, followed by MySQL (7%), Trino (7%), Oracle (5%).
DynamoDB
4 7%
MySQL
4 7%
Trino
4 7%
Oracle
3 5%
PostgreSQL
2 4%
Amazon Redshift
2 4%
Apache Iceberg
1 2%
Delta Lake
1 2%
Show all (12)
What cloud and platforms does BILL use?
Tableau is named in 21% of job postings at BILL, followed by AWS (18%), Amazon ECS (5%), Apache Kafka (5%).
Tableau
12 21%
AWS
10 18%
Apache Kafka
3 5%
Datadog
3 5%
Figma
3 5%
Splunk
3 5%
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What developer tools does BILL use?
Microsoft Excel is named in 14% of job postings at BILL, followed by dbt (14%), Copilot (7%), Rest API (7%).
dbt
8 14%
Copilot
4 7%
Rest API
4 7%
Adobe After Effects
2 4%
Gradle
2 4%
GraphQL
2 4%
Show all (19)
What AI and ML technologies does BILL use?
Claude is named in 18% of job postings at BILL, followed by LLM (16%), Gemini (5%), ChatGPT (2%).
Which engineering practices does BILL ask for?
AI Agents is named in 16% of job postings at BILL, followed by CI/CD (13%), Agentic Workflows (5%), Fine-tuning (5%).
AI Agents
9 16%
CI/CD
7 13%
Fine-tuning
3 5%
RAG
3 5%
Function Calling
2 4%
Show all (26)
What does each BILL team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Sales
8 postingsData Science
6 postingsAnalytics
4 postingsBackend
4 postingsHow does your stack fit BILL?
How much does BILL pay by technology?
Median stated pay of the postings that name each technology, against the median of all BILL postings with stated pay: $180k across 50 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| SQL | 16 | $152k | −15% |
| Python | 13 | $135k | −25% |
| Tableau | 11 | $135k | −25% |
| AWS | 10 | $170k | −6% |
| Claude | 9 | $176k | −2% |
| LLM | 6 | $222k | +24% |
How is the BILL 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 BILL stack?
BILL 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: 7; legacy ones: 0.
How common is the BILL stack in its industry?
Share of the 1,871 companies in the same industries, whose stack Alion knows, that use each technology.
What sets BILL apart
Companies with a stack like BILL
Questions about the BILL tech stack
What programming languages does BILL use?
The languages named in BILL job postings are SQL (34%), Python (27%), Java (7%), JavaScript (7%), TypeScript (5%), as a share of the 56 postings of the last 12 months.
Does BILL use Flink?
Yes. Flink is named in 2 of 56 job postings (4%) and required in 2 of them.
What cloud and platforms does BILL use?
The cloud and platforms named in BILL job postings are Tableau (12), AWS (10), Amazon ECS (3) (postings in brackets).
What skills do you need for a Sales job at BILL?
Sales postings at BILL most often require Tableau (4), Twilio (2), out of 8 postings in the last 12 months.
Is the BILL tech stack changing?
Yes. PostgreSQL, DynamoDB, MySQL, Amazon ECS first appeared in BILL job postings in the last six months.
How modern is the BILL tech stack?
BILL 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: 7; legacy ones: 0.
How does Alion know the BILL tech stack?
Alion reads every job posting BILL publishes and tags the technologies each one names. The figures on this page count the 56 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, "BILL tech stack: 108 technologies from 56 job postings", as of Nov 11, 2026. https://alion.io/company/bill-ai/technologies