Esper tech stack
Esper builds mostly with Java, Python, Go, JavaScript. Its stack also includes AWS, Apache Kafka, PostgreSQL, Jetpack Compose. Java is named in 2 of the 4 job postings Esper published in the last 12 months (50%). Counted by Alion from the job postings of Esper, updated Sep 28, 2026.
What programming languages does Esper use?
Java is named in 50% of job postings at Esper, followed by Python (50%), Go (25%), JavaScript (25%).
What frameworks and libraries does Esper use?
Jetpack Compose is named in 25% of job postings at Esper, followed by LangChain (25%), React.js (25%).
What databases does Esper use?
PostgreSQL is named in 25% of job postings at Esper.
PostgreSQL
1 25%
What cloud and platforms does Esper use?
AWS is named in 50% of job postings at Esper, followed by Apache Kafka (50%), Azure (50%), GCP (50%).
What developer tools does Esper use?
Git is named in 75% of job postings at Esper, followed by Docker (25%), MQTT (25%), WebSockets (25%).
Which engineering practices does Esper ask for?
CI/CD is named in 75% of job postings at Esper, followed by AI Agents (25%), Prompt Engineering (25%).
How does your stack fit Esper?
How modern is the Esper stack?
Esper scores 80 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: 0; legacy ones: 0.
How common is the Esper stack in its industry?
Share of the 203 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Esper
Cloudesign
24 shared technologies
Greenhouse Software
24 shared technologies
Big Ideas Social Media Recruitment
23 shared technologies
Bereke Bank
24 shared technologies
Yumoseuwon UMOS ONE
23 shared technologies
Tidyhire
24 shared technologies
Alpaca
25 shared technologies
Okda Solutions
23 shared technologies
Questions about the Esper tech stack
What programming languages does Esper use?
The languages named in Esper job postings are Java (50%), Python (50%), Go (25%), JavaScript (25%), Kotlin (25%), as a share of the 4 postings of the last 12 months.
Does Esper use AWS?
Yes. AWS is named in 2 of 4 job postings (50%) and required in 2 of them.
What cloud and platforms does Esper use?
The cloud and platforms named in Esper job postings are AWS (2), Apache Kafka (2), Azure (2) (postings in brackets).
Is the Esper tech stack changing?
No new technology has appeared in Esper job postings in the last six months.
How modern is the Esper tech stack?
Esper scores 80 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: 0; legacy ones: 0.
How does Alion know the Esper tech stack?
Alion reads every job posting Esper 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 Sep 28, 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, "Esper tech stack: 25 technologies from 4 job postings", as of Sep 28, 2026. https://alion.io/company/esper/technologies