By Light tech stack
By Light builds mostly with Python, JavaScript, C#, Bash. Its stack also includes Linux, VMWare, React.js, Angular. Linux is named in 25 of the 73 job postings By Light published in the last 12 months (34%). Counted by Alion from the job postings of By Light, updated Nov 14, 2026.
What programming languages does By Light use?
Python is named in 15% of job postings at By Light, followed by JavaScript (10%), C# (8%), Bash (5%).
C# 
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What frameworks and libraries does By Light use?
React.js is named in 5% of job postings at By Light, followed by Angular (5%), Unreal Engine (5%), Unity (4%).
React.js
4 5%
Angular
4 5%
Unreal Engine
4 5%
Unity
3 4%
Vue.js
2 3%
Cartographer
1 1%
JQuery
1 1%
Socket.IO
1 1%
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What databases does By Light use?
MS SQL is named in 1% of job postings at By Light, followed by MySQL (1%), PostgreSQL (1%).
What cloud and platforms does By Light use?
Linux is named in 34% of job postings at By Light, followed by VMWare (27%), Windows (18%), AWS (18%).
VMWare
20 27%
AWS
13 18%
Kubernetes
13 18%
Azure
12 16%
Red Hat
7 10%
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What developer tools does By Light use?
Ansible is named in 19% of job postings at By Light, followed by Docker (18%), KVM (14%), Terraform (11%).
Ansible
14 19%
Docker
13 18%
KVM
10 14%
Terraform
8 11%
Git
8 11%
Rest API
7 10%
Xen
6 8%
Puppet
6 8%
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What AI and ML technologies does By Light use?
LLM is named in 1% of job postings at By Light.
LLM
1 1%
Which engineering practices does By Light ask for?
DNS is named in 19% of job postings at By Light, followed by CI/CD (16%), IAM (14%), Configuration Management (10%).
CI/CD
12 16%
Configuration Management
7 10%
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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
11 postingsIndustrial Engineering
11 postingsBackend
8 postingsSecurity
7 postingsHow does your stack fit By Light?
How modern is the By Light stack?
By Light scores 68 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 6,595 companies in the same industries, whose stack Alion knows, that use each technology.
What sets By Light apart
Companies with a stack like By Light
Scientific Research Corporation
76 shared technologies
Freedom Consulting Group
78 shared technologies
CAE
76 shared technologies
Markon Solutions
77 shared technologies
Agile Defense
83 shared technologies
Spektrum Group
76 shared technologies
GRVTY
88 shared technologies
AnaVation
74 shared technologies
Questions about the By Light tech stack
What programming languages does By Light use?
The languages named in By Light job postings are Python (15%), JavaScript (10%), C# (8%), Bash (5%), TypeScript (5%), as a share of the 73 postings of the last 12 months.
Does By Light use React.js?
Yes. React.js is named in 4 of 73 job postings (5%) and required in 4 of them.
What cloud and platforms does By Light use?
The cloud and platforms named in By Light job postings are Linux (25), VMWare (20), Windows (13) (postings in brackets).
What skills do you need for a DevOps job at By Light?
DevOps postings at By Light most often require Linux (7), VMWare (4), Ansible (3), Python (3), out of 11 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 68 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 73 postings of the last 12 months and were updated on Nov 14, 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: 121 technologies from 73 job postings", as of Nov 14, 2026. https://alion.io/company/bylight/technologies