lemlist tech stack

lemlist builds mostly with TypeScript, Node JS, JavaScript, Julia. Its stack also includes React.js, Figma, Apache Kafka, BigQuery. TypeScript is named in 4 of the 8 job postings lemlist published in the last 12 months (50%). Counted by Alion from the job postings of lemlist, updated Oct 15, 2026.

Source: Alion Coverage: the company's job postings of the last 12 months Oct 15, 2026
Technologies in use
29
Postings analysed
8
Open now
7
Modernity
82 /100

What programming languages does lemlist use?

TypeScript is named in 50% of job postings at lemlist, followed by Node JS (50%), JavaScript (50%), Julia (13%).

TypeScript 4 50% required in 100% · 3 open now · since Jul 2026
Node JS 4 50% required in 75% · 3 open now · since Jul 2026
JavaScript 4 50% required in 50% · 3 open now · since Jul 2026
Julia 1 13% optional · 1 open now · since May 2026
Python 1 13% optional · 1 open now · since Sep 2026
SQL 1 13% optional · 1 open now · since Sep 2026

What frameworks and libraries does lemlist use?

React.js is named in 38% of job postings at lemlist, followed by Agno (13%), LangGraph (13%), Mastra (13%).

React.js 3 38% required in 67% · 2 open now · since Jul 2026
Agno 1 13% required in 100% · 1 open now · since Sep 2026
LangGraph 1 13% required in 100% · 1 open now · since Sep 2026
Mastra 1 13% required in 100% · 1 open now · since Sep 2026
LangChain 1 13% optional · 1 open now · since Sep 2026

What databases does lemlist use?

BigQuery is named in 13% of job postings at lemlist, followed by Delta Lake (13%), Google BigQuery (13%), Snowflake (13%).

BigQuery 1 13% optional · 1 open now · since Sep 2026
Delta Lake 1 13% optional · 1 open now · since Sep 2026
Google BigQuery 1 13% optional · 1 open now · since Sep 2026
Snowflake 1 13% optional · 1 open now · since Sep 2026

What cloud and platforms does lemlist use?

Figma is named in 13% of job postings at lemlist, followed by Apache Kafka (13%), Databricks (13%), Spark (13%).

Figma 1 13% required in 100% · 1 open now · since Jul 2026
Apache Kafka 1 13% optional · 1 open now · since Sep 2026
Databricks 1 13% optional · 1 open now · since Sep 2026
Spark 1 13% optional · 1 open now · since Sep 2026

What developer tools does lemlist use?

Claude Code is named in 13% of job postings at lemlist, followed by Git (13%), OpenAI Codex (13%), Docker (13%).

Claude Code 1 13% required in 100% · 1 open now · since Sep 2026
Git 1 13% required in 100% · 1 open now · since Sep 2026
OpenAI Codex 1 13% required in 100% · 1 open now · since Sep 2026
Docker 1 13% optional · 1 open now · since Sep 2026
Jenkins 1 13% optional · 1 open now · since Sep 2026

What AI and ML technologies does lemlist use?

LLM is named in 13% of job postings at lemlist.

LLM 1 13% required in 100% · 1 open now · since Sep 2026

Which engineering practices does lemlist ask for?

AI Agents is named in 13% of job postings at lemlist, followed by CI/CD (13%), Context Engineering (13%), LLM Guardrails (13%).

AI Agents 1 13% required in 100% · 1 open now · since Sep 2026
CI/CD 1 13% required in 100% · 1 open now · since Sep 2026
Context Engineering 1 13% required in 100% · 1 open now · since Sep 2026
LLM Guardrails 1 13% required in 100% · 1 open now · since Sep 2026

What does each lemlist team work with?

The technologies each team's postings require most often, with the number of postings that require them.

Backend

4 postings
TypeScript4
Node JS3
JavaScript2
React.js2

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How modern is the lemlist stack?

Cutting-edge AI adopter 82/100

lemlist scores 82 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: 1; legacy ones: 0.

How common is the lemlist stack in its industry?

Share of the 2,223 companies in the same industries, whose stack Alion knows, that use each technology.

JavaScript51%
Node JS23%
TypeScript45%
React.js37%
Agno0%
Apache Kafka14%
BigQuery6%
Databricks9%
Delta Lake3%
Figma18%

Questions about the lemlist tech stack

What programming languages does lemlist use?

The languages named in lemlist job postings are TypeScript (50%), Node JS (50%), JavaScript (50%), Julia (13%), Python (13%), as a share of the 8 postings of the last 12 months.

Does lemlist use React.js?

Yes. React.js is named in 3 of 8 job postings (38%) and required in 2 of them.

What cloud and platforms does lemlist use?

The cloud and platforms named in lemlist job postings are Figma (1), Apache Kafka (1), Databricks (1) (postings in brackets).

What skills do you need for a Backend job at lemlist?

Backend postings at lemlist most often require TypeScript (4), Node JS (3), JavaScript (2), React.js (2), out of 4 postings in the last 12 months.

Is the lemlist tech stack changing?

No new technology has appeared in lemlist job postings in the last six months.

How modern is the lemlist tech stack?

lemlist scores 82 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: 1; legacy ones: 0.

How does Alion know the lemlist tech stack?

Alion reads every job posting lemlist publishes and tags the technologies each one names. The figures on this page count the 8 postings of the last 12 months and were updated on Oct 15, 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, "lemlist tech stack: 29 technologies from 8 job postings", as of Oct 15, 2026. https://alion.io/company/lemlist/technologies

Licence: CC BY-SA 4.0JSON