HRS tech stack
HRS builds mostly with Python, Java, SQL, JavaScript. Its stack also includes AWS, Azure, PostgreSQL, LangGraph. Python is named in 9 of the 39 job postings HRS published in the last 12 months (23%). Counted by Alion from the job postings of HRS, updated Nov 10, 2026.
What programming languages does HRS use?
Python is named in 23% of job postings at HRS, followed by Java (10%), SQL (5%), JavaScript (5%).
What frameworks and libraries does HRS use?
LangGraph is named in 5% of job postings at HRS, followed by LangChain (5%), CrewAI (3%), DSPy (3%).
What databases does HRS use?
PostgreSQL is named in 5% of job postings at HRS, followed by Redis (3%), Milvus (3%).
What cloud and platforms does HRS use?
AWS is named in 21% of job postings at HRS, followed by Azure (18%), Microsoft Entra ID (15%), Kubernetes (15%).
AWS
8 21%
Azure
7 18%
Kubernetes
6 15%
Amazon EKS
3 8%
AWS Bedrock
2 5%
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What developer tools does HRS use?
Copilot is named in 44% of job postings at HRS, followed by Terraform (10%), CloudFormation (5%), Rest API (5%).
Copilot
17 44%
Terraform
4 10%
CloudFormation
2 5%
Rest API
2 5%
Docker
2 5%
Helm
2 5%
Claude Code
1 3%
Show all (15)
What AI and ML technologies does HRS use?
LLM is named in 21% of job postings at HRS, followed by Claude (3%).
Which engineering practices does HRS ask for?
AI Agents is named in 33% of job postings at HRS, followed by CI/CD (26%), LLM Guardrails (13%), RAG (8%).
AI Agents
13 33%
CI/CD
10 26%
RAG
3 8%
Show all (22)
What does each HRS team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
5 postingsAI/ML
4 postingsHow does your stack fit HRS?
How is the HRS 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 HRS stack?
HRS 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: 2; legacy ones: 0.
How common is the HRS stack in its industry?
Share of the 401 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like HRS
Questions about the HRS tech stack
What programming languages does HRS use?
The languages named in HRS job postings are Python (23%), Java (10%), SQL (5%), JavaScript (5%), TypeScript (3%), as a share of the 39 postings of the last 12 months.
Does HRS use LangGraph?
Yes. LangGraph is named in 2 of 39 job postings (5%) and required in 2 of them.
What cloud and platforms does HRS use?
The cloud and platforms named in HRS job postings are AWS (8), Azure (7), Microsoft Entra ID (6) (postings in brackets).
What skills do you need for a Backend job at HRS?
Backend postings at HRS most often require Java (3), LLM (2), Python (2), out of 5 postings in the last 12 months.
Is the HRS tech stack changing?
Yes. Copilot Studio, DLP, Rest API first appeared in HRS job postings in the last six months.
How modern is the HRS tech stack?
HRS 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: 2; legacy ones: 0.
How does Alion know the HRS tech stack?
Alion reads every job posting HRS publishes and tags the technologies each one names. The figures on this page count the 39 postings of the last 12 months and were updated on Nov 10, 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, "HRS tech stack: 85 technologies from 39 job postings", as of Nov 10, 2026. https://alion.io/company/hrs-2/technologies