Sleek tech stack
Sleek builds mostly with JavaScript, Node JS, Python, TypeScript. Its stack also includes AWS, Kubernetes, Nest.JS, OpenTelemetry. LLM is named in 5 of the 15 job postings Sleek published in the last 12 months (33%). Counted by Alion from the job postings of Sleek, updated Oct 6, 2026.
What programming languages does Sleek use?
JavaScript is named in 20% of job postings at Sleek, followed by Node JS (20%), Python (13%), TypeScript (13%).
What frameworks and libraries does Sleek use?
Nest.JS is named in 20% of job postings at Sleek, followed by OpenTelemetry (20%), React.js (13%), Vue.js (13%).
What databases does Sleek use?
PostgreSQL is named in 13% of job postings at Sleek, followed by MySQL (13%), OpenSearch (7%), BigQuery (7%).
BigQuery 
What cloud and platforms does Sleek use?
AWS is named in 20% of job postings at Sleek, followed by Kubernetes (20%), Grafana (13%), Rancher (13%).
AWS
3 20%
Kubernetes
3 20%
Grafana
2 13%
Rancher
2 13%
Amazon EKS
1 7%
Azure
1 7%
Show all (12)
What developer tools does Sleek use?
Copilot is named in 40% of job postings at Sleek, followed by Cursor (20%), Kong (20%), Claude Code (20%).
Copilot
6 40%
Cursor
3 20%
Kong
3 20%
Claude Code
3 20%
Prometheus
3 20%
ArgoCD
1 7%
Canva
1 7%
CloudFormation
1 7%
Show all (15)
What AI and ML technologies does Sleek use?
LLM is named in 33% of job postings at Sleek, followed by ChatGPT (27%), Claude (7%).
Which engineering practices does Sleek ask for?
AI Agents is named in 33% of job postings at Sleek, followed by LLM Guardrails (13%), SLI/SLO/SLA (13%), A/B Testing (7%).
AI Agents
5 33%
SLI/SLO/SLA
2 13%
CI/CD
1 7%
Embeddings
1 7%
GitOps
1 7%
Show all (13)
How does your stack fit Sleek?
How is the Sleek 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 Sleek stack?
Sleek scores 83 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: 3; legacy ones: 0.
How common is the Sleek stack in its industry?
Share of the 335 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Sleek apart
Companies with a stack like Sleek
Questions about the Sleek tech stack
What programming languages does Sleek use?
The languages named in Sleek job postings are JavaScript (20%), Node JS (20%), Python (13%), TypeScript (13%), SQL (7%), as a share of the 15 postings of the last 12 months.
Does Sleek use Nest.JS?
Yes. Nest.JS is named in 3 of 15 job postings (20%) and required in 3 of them.
What cloud and platforms does Sleek use?
The cloud and platforms named in Sleek job postings are AWS (3), Kubernetes (3), Grafana (2) (postings in brackets).
Is the Sleek tech stack changing?
Yes. SLI/SLO/SLA, Cursor, Claude Code, LLM Guardrails first appeared in Sleek job postings in the last six months.
How modern is the Sleek tech stack?
Sleek scores 83 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: 3; legacy ones: 0.
How does Alion know the Sleek tech stack?
Alion reads every job posting Sleek publishes and tags the technologies each one names. The figures on this page count the 15 postings of the last 12 months and were updated on Oct 6, 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, "Sleek tech stack: 57 technologies from 15 job postings", as of Oct 6, 2026. https://alion.io/company/sleek/technologies