Handshake tech stack
Handshake builds mostly with TypeScript, Python, JavaScript, SQL. Its stack also includes Scale AI, GCP, PostgreSQL, React.js. Scale AI is named in 92 of the 103 job postings Handshake published in the last 12 months (89%). Counted by Alion from the job postings of Handshake, updated Sep 26, 2026.
What programming languages does Handshake use?
TypeScript is named in 20% of job postings at Handshake, followed by Python (20%), JavaScript (13%), SQL (7%).
TypeScript
21 20%
Python
21 20%
JavaScript
13 13%
SQL
7 7%
Ruby
3 3%
PowerShell
3 3%
Node JS
2 2%
Apex
1 1%
Show all (13)
What frameworks and libraries does Handshake use?
React.js is named in 8% of job postings at Handshake, followed by PyTorch (7%), Scikit-learn (4%), TensorFlow (4%).
React.js
8 8%
PyTorch
7 7%
Scikit-learn
4 4%
TensorFlow
4 4%
Ruby on Rails
3 3%
Next.js
2 2%
Transformers
2 2%
LangChain
1 1%
Show all (19)
What databases does Handshake use?
PostgreSQL is named in 15% of job postings at Handshake, followed by BigQuery (3%), Google BigQuery (3%), Redis (2%).
BigQuery 
What cloud and platforms does Handshake use?
Scale AI is named in 89% of job postings at Handshake, followed by GCP (21%), AWS (19%), Kubernetes (8%).
Show all (25)
What developer tools does Handshake use?
Docker is named in 7% of job postings at Handshake, followed by Terraform (5%), GraphQL (4%), Model Context Protocol (3%).
Show all (20)
What AI and ML technologies does Handshake use?
LLM is named in 23% of job postings at Handshake, followed by Claude (7%), ChatGPT (6%), Gemini (5%).
Show all (9)
Which engineering practices does Handshake ask for?
Post-training is named in 58% of job postings at Handshake, followed by AI Agents (18%), Machine Learning (13%), CI/CD (11%).
AI Agents
19 18%
CI/CD
11 11%
Reinforcement Learning
10 10%
RLHF
9 9%
Fine-tuning
7 7%
Show all (35)
What does each Handshake team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Backend
24 postingsAI/ML
11 postingsHR
8 postingsSolutions
7 postingsOperations
5 postingsHow does your stack fit Handshake?
How much does Handshake pay by technology?
Median stated pay of the postings that name each technology, against the median of all Handshake postings with stated pay: $220k across 89 postings.
| Technology | Postings with pay | Median | vs company median |
|---|---|---|---|
| Scale AI | 78 | $220k | 0% |
| LLM | 23 | $250k | +14% |
| Python | 19 | $220k | 0% |
| GCP | 17 | $250k | +14% |
| TypeScript | 17 | $250k | +14% |
| AWS | 15 | $250k | +14% |
| JavaScript | 13 | $250k | +14% |
| PostgreSQL | 11 | $250k | +14% |
| React.js | 8 | $260k | +18% |
| Azure | 7 | $220k | 0% |
How is the Handshake 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 Handshake stack?
Handshake scores 84 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: 9; legacy ones: 0.
How common is the Handshake stack in its industry?
Share of the 1,845 companies in the same industries, whose stack Alion knows, that use each technology.
What sets Handshake apart
Companies with a stack like Handshake
Questions about the Handshake tech stack
What programming languages does Handshake use?
The languages named in Handshake job postings are TypeScript (20%), Python (20%), JavaScript (13%), SQL (7%), Ruby (3%), as a share of the 103 postings of the last 12 months.
Does Handshake use React.js?
Yes. React.js is named in 8 of 103 job postings (8%) and required in 7 of them.
What cloud and platforms does Handshake use?
The cloud and platforms named in Handshake job postings are Scale AI (92), GCP (22), AWS (20) (postings in brackets).
What skills do you need for a Backend job at Handshake?
Backend postings at Handshake most often require Scale AI (24), TypeScript (14), GCP (11), PostgreSQL (11), out of 24 postings in the last 12 months.
Is the Handshake tech stack changing?
Yes. ComfyUI, DALL-E, Midjourney, Stable Diffusion first appeared in Handshake job postings in the last six months.
How modern is the Handshake tech stack?
Handshake scores 84 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: 9; legacy ones: 0.
How does Alion know the Handshake tech stack?
Alion reads every job posting Handshake publishes and tags the technologies each one names. The figures on this page count the 103 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, "Handshake tech stack: 127 technologies from 103 job postings", as of Sep 26, 2026. https://alion.io/company/handshake/technologies