Fonto tech stack
Fonto builds mostly with Python, SQL, JavaScript, TypeScript. Its stack also includes AWS, Windows, PostgreSQL, MySQL. Python is named in 15 of the 53 job postings Fonto published in the last 12 months (28%). Counted by Alion from the job postings of Fonto, updated Sep 27, 2026.
What programming languages does Fonto use?
Python is named in 28% of job postings at Fonto, followed by SQL (17%), JavaScript (13%), TypeScript (8%).
C 
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What frameworks and libraries does Fonto use?
SDL is named in 8% of job postings at Fonto, followed by React.js (8%), Django (6%), Angular (4%).
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What databases does Fonto use?
PostgreSQL is named in 9% of job postings at Fonto, followed by MySQL (8%), BigQuery (4%), Google BigQuery (4%).
PostgreSQL
5 9%
MySQL
4 8%
BigQuery
2 4%
Google BigQuery
2 4%
MS SQL
2 4%
Amazon Aurora
1 2%
ElasticSearch
1 2%
Redis
1 2%
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What cloud and platforms does Fonto use?
AWS is named in 19% of job postings at Fonto, followed by Windows (11%), Linux (9%), Power BI (9%).
AWS
10 19%
Power BI
5 9%
GCP
5 9%
Amazon EC2
3 6%
GitHub Actions
3 6%
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What developer tools does Fonto use?
Git is named in 13% of job postings at Fonto, followed by Docker (11%), Microsoft Excel (9%), Terraform (8%).
Git
7 13%
Docker
6 11%
Terraform
4 8%
GraphQL
3 6%
Ansible
2 4%
Nginx
2 4%
Prometheus
2 4%
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What AI and ML technologies does Fonto use?
LLM is named in 8% of job postings at Fonto, followed by Claude (2%).
Which engineering practices does Fonto ask for?
Machine Learning is named in 30% of job postings at Fonto, followed by CI/CD (30%), Fine-tuning (23%), Human-in-the-Loop (23%).
CI/CD
16 30%
Fine-tuning
12 23%
Prompt Engineering
12 23%
AI Agents
4 8%
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What does each Fonto team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
10 postingsHow does your stack fit Fonto?
How modern is the Fonto stack?
Fonto 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: 2; legacy ones: 0.
How common is the Fonto stack in its industry?
Share of the 179 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Fonto apart
Companies with a stack like Fonto
Questions about the Fonto tech stack
What programming languages does Fonto use?
The languages named in Fonto job postings are Python (28%), SQL (17%), JavaScript (13%), TypeScript (8%), C (8%), as a share of the 53 postings of the last 12 months.
Does Fonto use SDL?
Yes. SDL is named in 4 of 53 job postings (8%) and required in 4 of them.
What cloud and platforms does Fonto use?
The cloud and platforms named in Fonto job postings are AWS (10), Windows (6), Linux (5) (postings in brackets).
What skills do you need for a Backend job at Fonto?
Backend postings at Fonto most often require Python (6), JavaScript (4), Django (3), GraphQL (3), out of 10 postings in the last 12 months.
Is the Fonto tech stack changing?
No new technology has appeared in Fonto job postings in the last six months.
How modern is the Fonto tech stack?
Fonto 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: 2; legacy ones: 0.
How does Alion know the Fonto tech stack?
Alion reads every job posting Fonto publishes and tags the technologies each one names. The figures on this page count the 53 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, "Fonto tech stack: 119 technologies from 53 job postings", as of Sep 27, 2026. https://alion.io/company/fontoxml/technologies