Fastfive tech stack
Fastfive builds mostly with TypeScript, Node JS, JavaScript, Kotlin. Its stack also includes AWS, GCP, MariaDB, Redis. AWS is named in 7 of the 18 job postings Fastfive published in the last 12 months (39%). Counted by Alion from the job postings of Fastfive, updated Nov 12, 2026.
What programming languages does Fastfive use?
TypeScript is named in 22% of job postings at Fastfive, followed by Node JS (17%), JavaScript (17%), Kotlin (6%).
What frameworks and libraries does Fastfive use?
Nest.JS is named in 17% of job postings at Fastfive, followed by TypeORM (17%), Knex.js (11%), OpenTelemetry (6%).
Nest.JS
3 17%
TypeORM
3 17%
Knex.js
2 11%
OpenTelemetry
1 6%
React Native
1 6%
Spring Boot
1 6%
Vue.js
1 6%
React.js
1 6%
What databases does Fastfive use?
MariaDB is named in 17% of job postings at Fastfive, followed by Redis (17%), MySQL (11%), PostgreSQL (6%).
What cloud and platforms does Fastfive use?
AWS is named in 39% of job postings at Fastfive, followed by GCP (22%), Apache Kafka (17%), RabbitMQ (17%).
AWS
7 39%
GCP
4 22%
Apache Kafka
3 17%
RabbitMQ
3 17%
Azure
2 11%
Amazon EKS
1 6%
Datadog
1 6%
Figma
1 6%
Show all (10)
What developer tools does Fastfive use?
AutoCAD is named in 17% of job postings at Fastfive, followed by Adobe Photoshop (11%), Claude Code (11%), Adobe Illustrator (6%).
AutoCAD
3 17%
Adobe Photoshop
2 11%
Claude Code
2 11%
Adobe Illustrator
1 6%
Cursor
1 6%
Docker
1 6%
Git
1 6%
Loki
1 6%
Show all (10)
What AI and ML technologies does Fastfive use?
ChatGPT is named in 6% of job postings at Fastfive, followed by Claude (6%), LLM (6%).
Which engineering practices does Fastfive ask for?
CI/CD is named in 11% of job postings at Fastfive, followed by VPN (11%), TCP/IP (6%), Wi-Fi (6%).
What does each Fastfive team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
4 postingsSales
3 postingsHow does your stack fit Fastfive?
How is the Fastfive 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 Fastfive stack?
Fastfive scores 91 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: 3; legacy ones: 0.
How common is the Fastfive stack in its industry?
Share of the 95 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Fastfive apart
Companies with a stack like Fastfive
Questions about the Fastfive tech stack
What programming languages does Fastfive use?
The languages named in Fastfive job postings are TypeScript (22%), Node JS (17%), JavaScript (17%), Kotlin (6%), Python (6%), as a share of the 18 postings of the last 12 months.
Does Fastfive use Nest.JS?
Yes. Nest.JS is named in 3 of 18 job postings (17%) and required in 3 of them.
What cloud and platforms does Fastfive use?
The cloud and platforms named in Fastfive job postings are AWS (7), GCP (4), Apache Kafka (3) (postings in brackets).
What skills do you need for a Backend job at Fastfive?
Backend postings at Fastfive most often require TypeScript (4), AWS (3), Apache Kafka (3), MariaDB (3), out of 4 postings in the last 12 months.
Is the Fastfive tech stack changing?
Yes. Azure, Adobe Photoshop, AutoCAD first appeared in Fastfive job postings in the last six months.
How modern is the Fastfive tech stack?
Fastfive scores 91 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: 3; legacy ones: 0.
How does Alion know the Fastfive tech stack?
Alion reads every job posting Fastfive publishes and tags the technologies each one names. The figures on this page count the 18 postings of the last 12 months and were updated on Nov 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, "Fastfive tech stack: 46 technologies from 18 job postings", as of Nov 12, 2026. https://alion.io/company/fastfive-co-kr/technologies