Sieve tech stack

Sieve builds mostly with Python, Go, JavaScript, C++. Its stack also includes PyTorch, GitHub, Svelte, AWS. Python is named in 5 of the 10 job postings Sieve published in the last 12 months (50%). Counted by Alion from the job postings of Sieve, updated Sep 28, 2026.

Source: Alion Coverage: the company's job postings of the last 12 months Sep 28, 2026
Technologies in use
36
Postings analysed
10
Open now
9
Modernity
84 /100
New in 6 months
6

What programming languages does Sieve use?

Python is named in 50% of job postings at Sieve, followed by Go (20%), JavaScript (20%), C++ (10%).

Python 5 50% required in 100% · 5 open now · since Apr 2025
Go 2 20% required in 100% · 2 open now · since Sep 2025
JavaScript 2 20% optional · 2 open now · since Jan 2026
C++ 1 10% required in 100% · 1 open now · since Feb 2026
Rust 1 10% required in 100% · 1 open now · since Apr 2025
TypeScript 1 10% required in 100% · 1 open now · since Sep 2025
SQL 1 10% optional · 1 open now · since Sep 2026

What frameworks and libraries does Sieve use?

PyTorch is named in 30% of job postings at Sieve, followed by Svelte (20%), Next.js (10%), React Native (10%).

PyTorch 3 30% required in 100% · 3 open now · since May 2026
Svelte 2 20% required in 100% · 2 open now · since Jan 2026
Next.js 1 10% required in 100% · 1 open now · since Jan 2026
React Native 1 10% required in 100% · 1 open now · since Jan 2026
React.js 1 10% optional · 1 open now · since Jan 2026

What cloud and platforms does Sieve use?

GitHub is named in 20% of job postings at Sieve, followed by AWS (10%), Cloudflare (10%), GCP (10%).

GitHub 2 20% required in 100% · 2 open now · since Sep 2025
AWS 1 10% required in 100% · 1 open now · since Feb 2026
Cloudflare 1 10% required in 100% · 1 open now · since Feb 2026
GCP 1 10% required in 100% · 1 open now · since Feb 2026
Kubernetes 1 10% optional · 1 open now · since Feb 2026

What developer tools does Sieve use?

Kustomize is named in 10% of job postings at Sieve, followed by Prometheus (10%), Terraform (10%), VictoriaMetrics (10%).

Kustomize 1 10% required in 100% · 1 open now · since Feb 2026
Prometheus 1 10% required in 100% · 1 open now · since Feb 2026
Terraform 1 10% required in 100% · 1 open now · since Feb 2026
VictoriaMetrics 1 10% required in 100% · 1 open now · since Feb 2026

What AI and ML technologies does Sieve use?

Claude is named in 10% of job postings at Sieve, followed by VLM (10%).

Claude 1 10% required in 100% · 1 open now · since Jul 2026
VLM 1 10% required in 100% · 1 open now · since Jul 2026

Which engineering practices does Sieve ask for?

Multimodal AI is named in 100% of job postings at Sieve, followed by Reinforcement Learning (30%), Reinforcement Learning (30%), Fine-tuning (20%).

Multimodal AI 10 100% required in 60% · 9 open now · since Apr 2025
Reinforcement Learning 3 30% required in 67% · 2 open now · since Jul 2026
Reinforcement Learning 3 30% required in 67% · 2 open now · since Jul 2026
Fine-tuning 2 20% required in 100% · 2 open now · since Jul 2026
Machine Learning 2 20% required in 100% · 2 open now · since Jul 2026
Post-training 2 20% required in 100% · 2 open now · since Sep 2026
CI/CD 1 10% required in 100% · 1 open now · since Apr 2025
Computer Use 1 10% required in 100% · since Jul 2026
Show all (13)
Diffusion Models1
Physical AI1
SFT1
Human-in-the-Loop1
Red Teaming1

What does each Sieve team work with?

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

AI/ML

5 postings
Python5
PyTorch3
GitHub2
Go2
Svelte2

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How is the Sieve 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
Post-trainingSep 2026
Reinforcement LearningJul 2026
Reinforcement LearningJul 2026
Fine-tuningJul 2026
Machine LearningJul 2026
PyTorchMay 2026
Not named for 6 months
GitHubFeb 2026
GoFeb 2026
SvelteFeb 2026
JavaScriptFeb 2026

How modern is the Sieve stack?

Cutting-edge AI adopter 84/100

Sieve scores 84 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 Sieve stack in its industry?

Share of the 267 companies in the same industries, whose stack Alion knows, that use each technology.

Python73%
PyTorch38%
GitHub26%
Go25%
JavaScript52%
Svelte1%
AWS51%
C++36%
Claude28%
Cloudflare4%

Questions about the Sieve tech stack

What programming languages does Sieve use?

The languages named in Sieve job postings are Python (50%), Go (20%), JavaScript (20%), C++ (10%), Rust (10%), as a share of the 10 postings of the last 12 months.

Does Sieve use PyTorch?

Yes. PyTorch is named in 3 of 10 job postings (30%) and required in 3 of them.

What cloud and platforms does Sieve use?

The cloud and platforms named in Sieve job postings are GitHub (2), AWS (1), Cloudflare (1) (postings in brackets).

What skills do you need for a AI/ML job at Sieve?

AI/ML postings at Sieve most often require Python (5), PyTorch (3), GitHub (2), Go (2), out of 5 postings in the last 12 months.

Is the Sieve tech stack changing?

Yes. Post-training, Reinforcement Learning, Reinforcement Learning, Fine-tuning first appeared in Sieve job postings in the last six months.

How modern is the Sieve tech stack?

Sieve scores 84 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 Sieve tech stack?

Alion reads every job posting Sieve publishes and tags the technologies each one names. The figures on this page count the 10 postings of the last 12 months and were updated on Sep 28, 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, "Sieve tech stack: 36 technologies from 10 job postings", as of Sep 28, 2026. https://alion.io/company/sieve-2/technologies

Licence: CC BY-SA 4.0JSON