Les Filles tech stack
Les Filles builds mostly with Java, TypeScript, JavaScript, Go. Its stack also includes Kubernetes, AWS, Angular, FastAPI. Kubernetes is named in 6 of the 12 job postings Les Filles published in the last 12 months (50%). Counted by Alion from the job postings of Les Filles, updated Oct 12, 2026.
What programming languages does Les Filles use?
Java is named in 25% of job postings at Les Filles, followed by TypeScript (17%), JavaScript (17%), Go (8%).
What frameworks and libraries does Les Filles use?
Angular is named in 17% of job postings at Les Filles, followed by FastAPI (8%), Flask (8%), LangChain (8%).
Angular
2 17%
FastAPI
1 8%
Flask
1 8%
LangChain
1 8%
OpenTelemetry
1 8%
PyTorch
1 8%
Pytest
1 8%
Scikit-learn
1 8%
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What cloud and platforms does Les Filles use?
Kubernetes is named in 50% of job postings at Les Filles, followed by AWS (25%), GitLab CI (25%), GCP (17%).
Kubernetes
6 50%
AWS
3 25%
GitLab CI
3 25%
GCP
2 17%
Grafana
2 17%
Rancher
2 17%
VMWare
2 17%
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What developer tools does Les Filles use?
Helm is named in 33% of job postings at Les Filles, followed by Docker (25%), Terraform (25%), Ansible (17%).
Helm
4 33%
Docker
3 25%
Terraform
3 25%
Ansible
2 17%
Apache Tomcat
2 17%
Loki
2 17%
OpenStack
2 17%
Prometheus
2 17%
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What AI and ML technologies does Les Filles use?
LLM is named in 25% of job postings at Les Filles, followed by ChatGPT (8%).
Which engineering practices does Les Filles ask for?
CI/CD is named in 42% of job postings at Les Filles, followed by AI Agents (17%), GitOps (17%), Prompt Engineering (17%).
CI/CD
5 42%
AI Agents
2 17%
GitOps
2 17%
Prompt Engineering
2 17%
Fine-tuning
1 8%
Incident Management
1 8%
Show all (10)
What does each Les Filles team work with?
The technologies each team's postings require most often, with the number of postings that require them.
DevOps
5 postingsHow does your stack fit Les Filles?
How modern is the Les Filles stack?
Les Filles scores 86 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: 2; legacy ones: 0.
How common is the Les Filles stack in its industry?
Share of the 4,308 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Les Filles
Questions about the Les Filles tech stack
What programming languages does Les Filles use?
The languages named in Les Filles job postings are Java (25%), TypeScript (17%), JavaScript (17%), Go (8%), Node JS (8%), as a share of the 12 postings of the last 12 months.
Does Les Filles use Angular?
Yes. Angular is named in 2 of 12 job postings (17%) and required in 2 of them.
What cloud and platforms does Les Filles use?
The cloud and platforms named in Les Filles job postings are Kubernetes (6), AWS (3), GitLab CI (3) (postings in brackets).
What skills do you need for a DevOps job at Les Filles?
DevOps postings at Les Filles most often require GitLab CI (3), Helm (3), Kubernetes (3), Ansible (2), out of 5 postings in the last 12 months.
Is the Les Filles tech stack changing?
No new technology has appeared in Les Filles job postings in the last six months.
How modern is the Les Filles tech stack?
Les Filles scores 86 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: 2; legacy ones: 0.
How does Alion know the Les Filles tech stack?
Alion reads every job posting Les Filles publishes and tags the technologies each one names. The figures on this page count the 12 postings of the last 12 months and were updated on Oct 12, 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, "Les Filles tech stack: 61 technologies from 12 job postings", as of Oct 12, 2026. https://alion.io/company/les-filles/technologies