FIS tech stack
FIS builds mostly with SQL, Python, Java, JavaScript. Its stack also includes AWS, Azure, Oracle, PostgreSQL. SQL is named in 103 of the 309 job postings FIS published in the last 12 months (33%). Counted by Alion from the job postings of FIS, updated Sep 26, 2026.
What programming languages does FIS use?
SQL is named in 33% of job postings at FIS, followed by Python (24%), Java (19%), JavaScript (12%).
SQL
103 33%
Python
73 24%
Java
58 19%
JavaScript
36 12%
TypeScript
32 10%
COBOL
25 8%
PowerShell
22 7%
C#
22 7%
Show all (31)
What frameworks and libraries does FIS use?
Selenium is named in 5% of job postings at FIS, followed by Spring Boot (5%), Angular (4%), Hibernate (3%).
Selenium
16 5%
Spring Boot
16 5%
Angular
13 4%
Hibernate
9 3%
React.js
8 3%
Cypress
7 2%
Spring Framework
6 2%
FastAPI
5 2%
Show all (61)
And 21 more, each named in fewer postings.
What databases does FIS use?
Oracle is named in 12% of job postings at FIS, followed by PostgreSQL (6%), Db2 (6%), IMS (3%).
Show all (23)
What cloud and platforms does FIS use?
AWS is named in 28% of job postings at FIS, followed by Azure (22%), Kubernetes (21%), Linux (16%).
AWS
86 28%
Azure
69 22%
Kubernetes
66 21%
GCP
29 9%
Apache Kafka
24 8%
Show all (76)
And 36 more, each named in fewer postings.
What developer tools does FIS use?
Jenkins is named in 17% of job postings at FIS, followed by Docker (13%), Git (11%), Terraform (11%).
Jenkins
52 17%
Docker
41 13%
Git
33 11%
Terraform
33 11%
Rest API
29 9%
Prometheus
24 8%
Copilot
22 7%
Show all (71)
And 31 more, each named in fewer postings.
What AI and ML technologies does FIS use?
LLM is named in 3% of job postings at FIS, followed by Claude (2%), ChatGPT (<1%), PEFT (<1%).
Which engineering practices does FIS ask for?
CI/CD is named in 27% of job postings at FIS, followed by Incident Management (10%), AI Agents (9%), SLI/SLO/SLA (5%).
CI/CD
84 27%
Incident Management
30 10%
AI Agents
29 9%
SLI/SLO/SLA
15 5%
Platform Engineering
13 4%
Show all (51)
And 11 more, each named in fewer postings.
What does each FIS team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
59 postingsDevOps
41 postingsEnterprise Apps
27 postingsFinance
24 postingsSupport
22 postingsAnalytics
19 postingsHow does your stack fit FIS?
How much does FIS pay by technology?
Median stated pay of the postings that name each technology, against the median of all FIS postings with stated pay: $160k across 39 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| AWS | 16 | $168k | +5% |
| Kubernetes | 12 | $168k | +5% |
| SQL | 12 | $131k | −18% |
| Java | 10 | $104k | −35% |
| PostgreSQL | 8 | $152k | −5% |
| Apache Kafka | 6 | $237k | +48% |
| Azure | 6 | $201k | +25% |
| TypeScript | 6 | $182k | +14% |
| JavaScript | 5 | $168k | +5% |
| Linux | 5 | $122k | −23% |
How is the FIS 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 FIS stack?
FIS scores 80 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: 6; legacy ones: 0.
How common is the FIS stack in its industry?
Share of the 719 companies in the same industries, whose stack Alion knows, that use each technology.
What sets FIS apart
Companies with a stack like FIS
Questions about the FIS tech stack
What programming languages does FIS use?
The languages named in FIS job postings are SQL (33%), Python (24%), Java (19%), JavaScript (12%), TypeScript (10%), as a share of the 309 postings of the last 12 months.
Does FIS use Selenium?
Yes. Selenium is named in 16 of 309 job postings (5%) and required in 16 of them.
What cloud and platforms does FIS use?
The cloud and platforms named in FIS job postings are AWS (86), Azure (69), Kubernetes (66) (postings in brackets).
What skills do you need for a Backend job at FIS?
Backend postings at FIS most often require Java (23), SQL (23), JavaScript (19), Git (18), out of 59 postings in the last 12 months.
Is the FIS tech stack changing?
Yes. Tool Use, Spring Security, Canva, TestRail first appeared in FIS job postings in the last six months.
How modern is the FIS tech stack?
FIS scores 80 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: 6; legacy ones: 0.
How does Alion know the FIS tech stack?
Alion reads every job posting FIS publishes and tags the technologies each one names. The figures on this page count the 309 postings of the last 12 months and were updated on Sep 26, 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, "FIS tech stack: 320 technologies from 309 job postings", as of Sep 26, 2026. https://alion.io/company/fis/technologies