Reltio tech stack
Reltio builds mostly with Java, Python, JavaScript, Go. Its stack also includes AWS, Azure, Cassandra, ElasticSearch. AWS is named in 23 of the 32 job postings Reltio published in the last 12 months (72%). Counted by Alion from the job postings of Reltio, updated Sep 27, 2026.
What programming languages does Reltio use?
Java is named in 38% of job postings at Reltio, followed by Python (38%), JavaScript (13%), Go (13%).
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What frameworks and libraries does Reltio use?
Flink is named in 9% of job postings at Reltio, followed by OpenTelemetry (9%), Apache Camel (6%), LangChain (6%).
Flink
3 9%
OpenTelemetry
3 9%
Apache Camel
2 6%
LangChain
2 6%
LangGraph
2 6%
Spring Boot
2 6%
Hadoop
2 6%
NeMo Guardrails
1 3%
What databases does Reltio use?
Cassandra is named in 16% of job postings at Reltio, followed by ElasticSearch (13%), ClickHouse (6%), Druid (6%).
Cassandra
5 16%
ElasticSearch
4 13%
ClickHouse
2 6%
Druid
2 6%
OpenSearch
2 6%
DynamoDB
2 6%
Snowflake
1 3%
What cloud and platforms does Reltio use?
AWS is named in 72% of job postings at Reltio, followed by Azure (72%), GCP (66%), Kubernetes (38%).
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What developer tools does Reltio use?
Terraform is named in 19% of job postings at Reltio, followed by Prometheus (19%), Jenkins (16%), ArgoCD (13%).
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What AI and ML technologies does Reltio use?
LLM is named in 19% of job postings at Reltio.
LLM
6 19%
Which engineering practices does Reltio ask for?
AI Agents is named in 91% of job postings at Reltio, followed by Master Data Management (34%), CI/CD (31%), LLM Guardrails (19%).
AI Agents
29 91%
CI/CD
10 31%
Platform Engineering
5 16%
Incident Management
5 16%
SLI/SLO/SLA
4 13%
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What does each Reltio team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Solutions
7 postingsDevOps
6 postingsSecurity
5 postingsBackend
4 postingsIndustrial Engineering
3 postingsHow does your stack fit Reltio?
How is the Reltio 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 Reltio stack?
Reltio scores 73 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 Reltio stack in its industry?
Share of the 20 companies in the same industries, whose stack Alion knows, that use each technology.
Companies with a stack like Reltio
Questions about the Reltio tech stack
What programming languages does Reltio use?
The languages named in Reltio job postings are Java (38%), Python (38%), JavaScript (13%), Go (13%), TypeScript (6%), as a share of the 32 postings of the last 12 months.
Does Reltio use Flink?
Yes. Flink is named in 3 of 32 job postings (9%) and required in 2 of them.
What cloud and platforms does Reltio use?
The cloud and platforms named in Reltio job postings are AWS (23), Azure (23), GCP (21) (postings in brackets).
What skills do you need for a Solutions job at Reltio?
Solutions postings at Reltio most often require AWS (5), Azure (5), GCP (5), JavaScript (3), out of 7 postings in the last 12 months.
Is the Reltio tech stack changing?
Yes. SQL, Human-in-the-Loop, TypeScript, ETL/ELT first appeared in Reltio job postings in the last six months.
How modern is the Reltio tech stack?
Reltio scores 73 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 Reltio tech stack?
Alion reads every job posting Reltio publishes and tags the technologies each one names. The figures on this page count the 32 postings of the last 12 months and were updated on Sep 27, 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, "Reltio tech stack: 95 technologies from 32 job postings", as of Sep 27, 2026. https://alion.io/company/reltio/technologies