Portfolio Erik Kooijman tech stack

Portfolio Erik Kooijman builds mostly with Python, Go, Java, SQL. Its stack also includes SIEM, Figma, ElasticSearch, React.js. SIEM is named in 7 of the 21 job postings Portfolio Erik Kooijman published in the last 12 months (33%). Counted by Alion from the job postings of Portfolio Erik Kooijman, updated Oct 9, 2026.

Source: Alion Coverage: the company's job postings of the last 12 months Oct 9, 2026
Technologies in use
32
Postings analysed
21
Open now
21
Modernity
79 /100
New in 6 months
3

What programming languages does Portfolio Erik Kooijman use?

Python is named in 29% of job postings at Portfolio Erik Kooijman, followed by Go (5%), Java (5%), SQL (5%).

Python 6 29% required in 83% · 6 open now · since Sep 2025
Go 1 5% required in 100% · 1 open now · since Sep 2025
Java 1 5% required in 100% · 1 open now · since Sep 2025
SQL 1 5% required in 100% · 1 open now · since Sep 2025
TypeScript 1 5% required in 100% · 1 open now · since Aug 2026
JavaScript 1 5% optional · 1 open now · since Aug 2026

What frameworks and libraries does Portfolio Erik Kooijman use?

React.js is named in 5% of job postings at Portfolio Erik Kooijman, followed by UIKit (5%).

React.js 1 5% required in 100% · 1 open now · since Aug 2026
UIKit 1 5% required in 100% · 1 open now · since Aug 2026

What databases does Portfolio Erik Kooijman use?

ElasticSearch is named in 5% of job postings at Portfolio Erik Kooijman.

ElasticSearch 1 5% required in 100% · 1 open now · since Sep 2025

What cloud and platforms does Portfolio Erik Kooijman use?

SIEM is named in 33% of job postings at Portfolio Erik Kooijman, followed by Figma (5%), GCP (5%), Kubernetes (5%).

SIEM 7 33% required in 86% · 7 open now · since May 2026
Figma 1 5% required in 100% · 1 open now · since Aug 2026
GCP 1 5% required in 100% · 1 open now · since Sep 2026
Kubernetes 1 5% required in 100% · 1 open now · since Sep 2025
OpenAI 1 5% required in 100% · 1 open now · since Aug 2026
VirusTotal 1 5% required in 100% · 1 open now · since Jul 2026

What developer tools does Portfolio Erik Kooijman use?

Rest API is named in 14% of job postings at Portfolio Erik Kooijman, followed by Cursor (5%), GraphQL (5%), Storybook (5%).

Rest API 3 14% required in 100% · 3 open now · since May 2026
Cursor 1 5% required in 100% · 1 open now · since Jun 2026
GraphQL 1 5% required in 100% · 1 open now · since Aug 2026
Storybook 1 5% required in 100% · 1 open now · since Aug 2026
Terraform 1 5% required in 100% · 1 open now · since Sep 2025
Claude Code 1 5% optional · 1 open now · since Jul 2026

What AI and ML technologies does Portfolio Erik Kooijman use?

LLM is named in 24% of job postings at Portfolio Erik Kooijman.

LLM 5 24% required in 60% · 5 open now · since Aug 2025

Which engineering practices does Portfolio Erik Kooijman ask for?

AI Agents is named in 95% of job postings at Portfolio Erik Kooijman, followed by Anomaly Detection (10%), Embeddings (10%), Machine Learning (10%).

AI Agents 20 95% required in 100% · 20 open now · since Aug 2025
Anomaly Detection 2 10% required in 100% · 2 open now · since Jan 2026
Embeddings 2 10% required in 100% · 2 open now · since Jan 2026
Machine Learning 2 10% required in 100% · 2 open now · since Jan 2026
NLP 2 10% required in 100% · 2 open now · since Jan 2026
Agentic Workflows 2 10% required in 50% · 2 open now · since Jul 2026
CI/CD 1 5% required in 100% · 1 open now · since Sep 2026
IAM 1 5% required in 100% · 1 open now · since Sep 2026
Show all (10)
ISO 420011
LLM Guardrails1

What does each Portfolio Erik Kooijman team work with?

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

Solutions

6 postings
SIEM6
LLM3
Python3
Rest API3

See the open roles

How does your stack fit Portfolio Erik Kooijman?

Sign in to compare your skills with this stack and see which open roles fit you.
Sign In

How is the Portfolio Erik Kooijman 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.

First appeared
Agentic WorkflowsJul 2026
SIEMMay 2026
Rest APIMay 2026

How modern is the Portfolio Erik Kooijman stack?

Cutting-edge AI adopter 79/100

Portfolio Erik Kooijman scores 79 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.

Questions about the Portfolio Erik Kooijman tech stack

What programming languages does Portfolio Erik Kooijman use?

The languages named in Portfolio Erik Kooijman job postings are Python (29%), Go (5%), Java (5%), SQL (5%), TypeScript (5%), as a share of the 21 postings of the last 12 months.

Does Portfolio Erik Kooijman use SIEM?

Yes. SIEM is named in 7 of 21 job postings (33%) and required in 6 of them.

What cloud and platforms does Portfolio Erik Kooijman use?

The cloud and platforms named in Portfolio Erik Kooijman job postings are SIEM (7), Figma (1), GCP (1) (postings in brackets).

What skills do you need for a Solutions job at Portfolio Erik Kooijman?

Solutions postings at Portfolio Erik Kooijman most often require SIEM (6), LLM (3), Python (3), Rest API (3), out of 6 postings in the last 12 months.

Is the Portfolio Erik Kooijman tech stack changing?

Yes. Agentic Workflows, SIEM, Rest API first appeared in Portfolio Erik Kooijman job postings in the last six months.

How modern is the Portfolio Erik Kooijman tech stack?

Portfolio Erik Kooijman scores 79 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 Portfolio Erik Kooijman tech stack?

Alion reads every job posting Portfolio Erik Kooijman publishes and tags the technologies each one names. The figures on this page count the 21 postings of the last 12 months and were updated on Oct 9, 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, "Portfolio Erik Kooijman tech stack: 32 technologies from 21 job postings", as of Oct 9, 2026. https://alion.io/company/doppel/technologies

Licence: CC BY-SA 4.0JSON