By Light tech stack

By Light builds mostly with Python, JavaScript, Bash, Node JS. Its stack also includes Linux, VMWare, MySQL, PostgreSQL. Linux is named in 19 of the 46 job postings By Light published in the last 12 months (41%). Counted by Alion from the job postings of By Light, updated Sep 30, 2026.

Source: Alion Coverage: the company's job postings of the last 12 months Sep 30, 2026
Technologies in use
94
Postings analysed
46
Open now
45
Modernity
69 /100

What programming languages does By Light use?

Python is named in 13% of job postings at By Light, followed by JavaScript (9%), Bash (4%), Node JS (4%).

Python 6 13% required in 67% · 6 open now · since Sep 2026
JavaScript 4 9% required in 25% · 4 open now · since Sep 2026
Bash 2 4% required in 100% · 2 open now · since Sep 2026
Node JS 2 4% required in 50% · 2 open now · since Sep 2026
C++ 1 2% required in 100% · 1 open now · since Sep 2026
Groovy 1 2% required in 100% · 1 open now · since Sep 2026
Perl 1 2% required in 100% · 1 open now · since Sep 2026
PowerShell 1 2% required in 100% · 1 open now · since Sep 2026
Show all (16)
Ruby1
Assembly1
Go1
HLSL1
Java1
PHP1
Rust1
TypeScript1

What frameworks and libraries does By Light use?

Commander.js is named in 2% of job postings at By Light, followed by JQuery (2%), React.js (2%), Socket.IO (2%).

Commander.js 1 2% required in 100% · 1 open now · since Sep 2026
JQuery 1 2% required in 100% · 1 open now · since Sep 2026
React.js 1 2% required in 100% · 1 open now · since Sep 2026
Socket.IO 1 2% required in 100% · 1 open now · since Sep 2026
Unreal Engine 1 2% required in 100% · 1 open now · since Sep 2026
Angular 1 2% optional · 1 open now · since Sep 2026

What databases does By Light use?

MySQL is named in 2% of job postings at By Light, followed by PostgreSQL (2%).

MySQL 1 2% required in 100% · 1 open now · since Sep 2026
PostgreSQL 1 2% required in 100% · 1 open now · since Sep 2026

What cloud and platforms does By Light use?

Linux is named in 41% of job postings at By Light, followed by VMWare (30%), Windows (24%), AWS (15%).

Linux 19 41% required in 95% · 19 open now · since Sep 2026
VMWare 14 30% required in 79% · 14 open now · since Sep 2026
Windows 11 24% required in 100% · 11 open now · since Sep 2026
AWS 7 15% required in 57% · 7 open now · since Sep 2026
Active Directory 5 11% required in 100% · 5 open now · since Sep 2026
Kubernetes 5 11% required in 20% · 5 open now · since Sep 2026
Red Hat 4 9% required in 100% · 4 open now · since Sep 2026
Azure 4 9% required in 50% · 4 open now · since Sep 2026
Show all (27)
Amazon ECS2
Unix2
GCP2
OpenShift2
AWS Lambda1
Amazon EC21
Amazon S31
Balsamiq1
Bitbucket1
Figma1
InVision1
LDAP1
SIEM1
Splunk1
Windows Server1
Cesium1
FreeBSD1
GitHub Actions1
GitLab CI1

What developer tools does By Light use?

KVM is named in 15% of job postings at By Light, followed by Ansible (15%), Xen (13%), Git (11%).

KVM 7 15% required in 100% · 7 open now · since Sep 2026
Ansible 7 15% required in 57% · 7 open now · since Sep 2026
Xen 6 13% required in 100% · 6 open now · since Sep 2026
Git 5 11% required in 60% · 5 open now · since Sep 2026
Docker 5 11% optional · 5 open now · since Sep 2026
Puppet 4 9% required in 50% · 4 open now · since Sep 2026
Jenkins 4 9% required in 25% · 4 open now · since Sep 2026
Chef 2 4% required in 100% · 2 open now · since Sep 2026
Show all (22)
Microsoft Excel2
Terraform2
Harbor2
JFrog Artifactory2
Kustomize2
Model Context Protocol2
Rest API2
Adobe Photoshop1
Adobe XD1
AutoCAD1
CloudFormation1
SolidWorks1
Apache HTTP Server1
ML-Agents1

What AI and ML technologies does By Light use?

LLM is named in 2% of job postings at By Light.

LLM 1 2% optional · 1 open now · since Sep 2026

Which engineering practices does By Light ask for?

DNS is named in 22% of job postings at By Light, followed by IAM (15%), TCP/IP (13%), CI/CD (13%).

DNS 10 22% required in 80% · 10 open now · since Sep 2026
IAM 7 15% required in 71% · 7 open now · since Sep 2026
TCP/IP 6 13% required in 100% · 6 open now · since Sep 2026
CI/CD 6 13% required in 33% · 6 open now · since Sep 2026
BGP 5 11% required in 100% · 5 open now · since Sep 2026
Configuration Management 4 9% required in 100% · 4 open now · since Sep 2026
MPLS 3 7% required in 100% · 3 open now · since Sep 2026
OSPF 3 7% required in 100% · 3 open now · since Sep 2026
Show all (20)
DHCP3
VLAN2
VPN2
Wi-Fi2
AI Agents2
RAG2
Fine-tuning1
Layer 21
Machine Learning1
Red Teaming1
Reinforcement Learning1
PKI1

What does each By Light team work with?

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

DevOps

8 postings
Linux6
VMWare4
Active Directory2
Ansible2
Git2
KVM2

Industrial Engineering

5 postings
Linux2
Red Hat2
VMWare2
Windows2

Analytics

4 postings
Linux3
Windows3
KVM2
VMWare2
Xen2

See the open roles

How does your stack fit By Light?

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

How modern is the By Light stack?

Modern AI adopter 69/100

By Light scores 69 out of 100 (Modern). 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 common is the By Light stack in its industry?

Share of the 1,795 companies in the same industries, whose stack Alion knows, that use each technology.

Linux35%
VMWare14%
Windows31%
AWS41%
Python54%
Active Directory16%
Kubernetes33%
Azure36%
JavaScript38%
Red Hat5%

Questions about the By Light tech stack

What programming languages does By Light use?

The languages named in By Light job postings are Python (13%), JavaScript (9%), Bash (4%), Node JS (4%), C++ (2%), as a share of the 46 postings of the last 12 months.

Does By Light use Linux?

Yes. Linux is named in 19 of 46 job postings (41%) and required in 18 of them.

What cloud and platforms does By Light use?

The cloud and platforms named in By Light job postings are Linux (19), VMWare (14), Windows (11) (postings in brackets).

What skills do you need for a DevOps job at By Light?

DevOps postings at By Light most often require Linux (6), VMWare (4), Active Directory (2), Ansible (2), out of 8 postings in the last 12 months.

Is the By Light tech stack changing?

No new technology has appeared in By Light job postings in the last six months.

How modern is the By Light tech stack?

By Light scores 69 out of 100 (Modern). 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 By Light tech stack?

Alion reads every job posting By Light publishes and tags the technologies each one names. The figures on this page count the 46 postings of the last 12 months and were updated on Sep 30, 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, "By Light tech stack: 94 technologies from 46 job postings", as of Sep 30, 2026. https://alion.io/company/bylight/technologies

Licence: CC BY-SA 4.0JSON