Cognizant tech stack
Cognizant builds mostly with SQL, Python, JavaScript, Java. Its stack also includes Rest-Assured, Azure, AWS, Spring Boot. Rest-Assured is named in 781 of the 2,292 job postings Cognizant published in the last 12 months (34%). Counted by Alion from the job postings of Cognizant, updated Nov 13, 2026.
What programming languages does Cognizant use?
SQL is named in 24% of job postings at Cognizant, followed by Python (21%), JavaScript (16%), Java (16%).
SQL
542 24%
Python
479 21%
JavaScript
369 16%
Java
367 16%
TypeScript
235 10%
C#
167 7%
Node JS
91 4%
PowerShell
86 4%
Show all (38)
What frameworks and libraries does Cognizant use?
Rest-Assured is named in 34% of job postings at Cognizant, followed by Spring Boot (7%), React.js (6%), Angular (6%).
Rest-Assured
781 34%
Spring Boot
169 7%
React.js
138 6%
Angular
136 6%
LangChain
95 4%
Selenium
85 4%
Playwright
76 3%
LangGraph
73 3%
Show all (134)
And 94 more, each named in fewer postings.
What databases does Cognizant use?
Oracle is named in 4% of job postings at Cognizant, followed by PostgreSQL (4%), Snowflake (4%), Db2 (2%).
Oracle
102 4%
PostgreSQL
96 4%
Snowflake
94 4%
Db2
50 2%
MySQL
49 2%
MS SQL
45 2%
Delta Lake
32 1%
Google BigQuery
31 1%
Show all (43)
And 3 more, each named in fewer postings.
What cloud and platforms does Cognizant use?
Azure is named in 29% of job postings at Cognizant, followed by AWS (23%), GCP (12%), Kubernetes (11%).
Azure
655 29%
AWS
529 23%
GCP
277 12%
Kubernetes
248 11%
Azure DevOps
178 8%
GitHub
125 5%
Apache Kafka
116 5%
Show all (138)
And 98 more, each named in fewer postings.
What developer tools does Cognizant use?
Rest API is named in 17% of job postings at Cognizant, followed by Git (10%), Docker (9%), Jenkins (7%).
Rest API
401 17%
Git
223 10%
Docker
196 9%
Jenkins
161 7%
Copilot
142 6%
Terraform
125 5%
pySpark
62 3%
Show all (152)
And 112 more, each named in fewer postings.
What AI and ML technologies does Cognizant use?
LLM is named in 6% of job postings at Cognizant, followed by Claude (4%), Gemini (1%), ChatGPT (1%).
Show all (12)
Which engineering practices does Cognizant ask for?
CI/CD is named in 31% of job postings at Cognizant, followed by AI Agents (13%), RAG (9%), Incident Management (6%).
CI/CD
702 31%
AI Agents
301 13%
RAG
195 9%
Incident Management
127 6%
Prompt Engineering
122 5%
Show all (117)
And 77 more, each named in fewer postings.
What other technologies does Cognizant use?
VSAM is named in 1% of job postings at Cognizant, followed by StateFlow (<1%), CDS Views (<1%), ABAP Objects (<1%).
StateFlow
7 <1%
Kotlin Coroutines
2 <1%
Ethereum
1 <1%
What does each Cognizant team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
337 postingsEnterprise Apps
336 postingsDevOps
199 postingsQA
143 postingsData Science
141 postingsAI/ML
138 postingsHow does your stack fit Cognizant?
How much does Cognizant pay by technology?
Median stated pay of the postings that name each technology, against the median of all Cognizant postings with stated pay: $120k across 844 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| Rest-Assured | 442 | $117k | −3% |
| Azure | 263 | $123k | +3% |
| AWS | 215 | $135k | +13% |
| SQL | 207 | $115k | −4% |
| Python | 181 | $130k | +8% |
| Java | 153 | $110k | −8% |
| GCP | 137 | $142k | +18% |
| JavaScript | 122 | $119k | −1% |
| Kubernetes | 117 | $133k | +11% |
| TypeScript | 97 | $115k | −4% |
How is the Cognizant 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 Cognizant stack?
Cognizant scores 76 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: 12; legacy ones: 1.
How common is the Cognizant stack in its industry?
Share of the 9,620 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Cognizant apart
Companies with a stack like Cognizant
Questions about the Cognizant tech stack
What programming languages does Cognizant use?
The languages named in Cognizant job postings are SQL (24%), Python (21%), JavaScript (16%), Java (16%), TypeScript (10%), as a share of the 2,292 postings of the last 12 months.
Does Cognizant use Rest-Assured?
Yes. Rest-Assured is named in 781 of 2,292 job postings (34%) and required in 749 of them.
What cloud and platforms does Cognizant use?
The cloud and platforms named in Cognizant job postings are Azure (655), AWS (529), GCP (277) (postings in brackets).
What skills do you need for a Backend job at Cognizant?
Backend postings at Cognizant most often require Java (142), SQL (139), Rest API (138), Spring Boot (132), out of 337 postings in the last 12 months.
Is the Cognizant tech stack changing?
Yes. Matter, Amazon DocumentDB, z/OS Connect, IBM DOORS first appeared in Cognizant job postings in the last six months.
How modern is the Cognizant tech stack?
Cognizant scores 76 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: 12; legacy ones: 1.
How does Alion know the Cognizant tech stack?
Alion reads every job posting Cognizant publishes and tags the technologies each one names. The figures on this page count the 2,292 postings of the last 12 months and were updated on Nov 13, 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, "Cognizant tech stack: 641 technologies from 2,292 job postings", as of Nov 13, 2026. https://alion.io/company/cognizant/technologies