FIS tech stack
FIS builds mostly with SQL, Python, Java, JavaScript. Its stack also includes AWS, Azure, Oracle, Spring Boot. SQL is named in 192 of the 556 job postings FIS published in the last 12 months (35%). Counted by Alion from the job postings of FIS, updated Nov 11, 2026.
What programming languages does FIS use?
SQL is named in 35% of job postings at FIS, followed by Python (21%), Java (18%), JavaScript (12%).
SQL
192 35%
Python
117 21%
Java
102 18%
JavaScript
68 12%
TypeScript
61 11%
C#
42 8%
C++
40 7%
PowerShell
39 7%
Show all (34)
What frameworks and libraries does FIS use?
Spring Boot is named in 6% of job postings at FIS, followed by Selenium (4%), Angular (4%), React.js (4%).
Spring Boot
34 6%
Selenium
25 4%
Angular
23 4%
React.js
21 4%
LangChain
14 3%
FastAPI
13 2%
JUnit
12 2%
Hibernate
12 2%
Show all (76)
And 36 more, each named in fewer postings.
What databases does FIS use?
Oracle is named in 11% of job postings at FIS, followed by PostgreSQL (5%), Db2 (4%), MS SQL (4%).
Oracle
63 11%
PostgreSQL
29 5%
Db2
22 4%
MS SQL
20 4%
IMS
12 2%
Redis
11 2%
Snowflake
10 2%
MySQL
8 1%
Show all (23)
What cloud and platforms does FIS use?
AWS is named in 27% of job postings at FIS, followed by Azure (22%), Kubernetes (19%), Linux (14%).
AWS
150 27%
Azure
125 22%
Kubernetes
105 19%
GCP
52 9%
Apache Kafka
47 8%
Show all (100)
And 60 more, each named in fewer postings.
What developer tools does FIS use?
Jenkins is named in 14% of job postings at FIS, followed by Docker (12%), Git (12%), Rest API (11%).
Jenkins
76 14%
Docker
65 12%
Git
64 12%
Rest API
62 11%
Terraform
51 9%
Prometheus
33 6%
Copilot
32 6%
Show all (95)
And 55 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%), PEFT (1%), LoRA (1%).
Which engineering practices does FIS ask for?
CI/CD is named in 27% of job postings at FIS, followed by AI Agents (11%), Incident Management (11%), Platform Engineering (5%).
CI/CD
148 27%
AI Agents
63 11%
Incident Management
61 11%
Platform Engineering
28 5%
Show all (58)
And 18 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
132 postingsDevOps
60 postingsSupport
45 postingsAnalytics
41 postingsFinance
38 postingsEnterprise Apps
30 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 69 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| AWS | 24 | $145k | −9% |
| SQL | 18 | $73k | −54% |
| Kubernetes | 17 | $122k | −23% |
| Java | 15 | $65k | −60% |
| JavaScript | 10 | $92k | −43% |
| Apache Kafka | 9 | $282k | +76% |
| Azure | 9 | $155k | −3% |
| Spring Boot | 9 | $61k | −62% |
| TypeScript | 8 | $168k | +5% |
| PostgreSQL | 8 | $152k | −5% |
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 77 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: 2.
How common is the FIS stack in its industry?
Share of the 1,717 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 (35%), Python (21%), Java (18%), JavaScript (12%), TypeScript (11%), as a share of the 556 postings of the last 12 months.
Does FIS use Spring Boot?
Yes. Spring Boot is named in 34 of 556 job postings (6%) and required in 32 of them.
What cloud and platforms does FIS use?
The cloud and platforms named in FIS job postings are AWS (150), Azure (125), Kubernetes (105) (postings in brackets).
What skills do you need for a Backend job at FIS?
Backend postings at FIS most often require SQL (50), Java (38), Git (32), AWS (31), out of 132 postings in the last 12 months.
Is the FIS tech stack changing?
Yes. Burp Suite, Fortify, OWASP ZAP, Veracode first appeared in FIS job postings in the last six months.
How modern is the FIS tech stack?
FIS scores 77 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: 2.
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 556 postings of the last 12 months and were updated on Nov 11, 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: 393 technologies from 556 job postings", as of Nov 11, 2026. https://alion.io/company/fis/technologies