Sunday tech stack
Sunday builds mostly with C++, Python, Rust, JavaScript. Its stack also includes Linux, PyTorch, Kubernetes, GTSAM. C++ is named in 6 of the 18 job postings Sunday published in the last 12 months (33%). Counted by Alion from the job postings of Sunday, updated Sep 28, 2026.
What programming languages does Sunday use?
C++ is named in 33% of job postings at Sunday, followed by Python (33%), Rust (17%), JavaScript (6%).
What frameworks and libraries does Sunday use?
PyTorch is named in 11% of job postings at Sunday, followed by GTSAM (6%), React Native (6%), React.js (6%).
What cloud and platforms does Sunday use?
Linux is named in 17% of job postings at Sunday, followed by Kubernetes (6%), RTOS (6%).
What developer tools does Sunday use?
SolidWorks is named in 11% of job postings at Sunday, followed by SLURM (6%), Altium Designer (6%), CMake (6%).
What AI and ML technologies does Sunday use?
LLM is named in 6% of job postings at Sunday, followed by VLM (6%).
Which engineering practices does Sunday ask for?
Machine Learning is named in 22% of job postings at Sunday, followed by Embodied AI (22%), AI Agents (11%), CI/CD (6%).
AI Agents
2 11%
CI/CD
1 6%
Show all (14)
What does each Sunday team work with?
The technologies each team's postings require most often, with the number of postings that require them.
Robotics
4 postingsHardware
3 postingsHow does your stack fit Sunday?
How is the Sunday 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 Sunday stack?
Sunday 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: 2; legacy ones: 0.
Companies with a stack like Sunday
Questions about the Sunday tech stack
What programming languages does Sunday use?
The languages named in Sunday job postings are C++ (33%), Python (33%), Rust (17%), JavaScript (6%), as a share of the 18 postings of the last 12 months.
Does Sunday use PyTorch?
Yes. PyTorch is named in 2 of 18 job postings (11%) and required in 2 of them.
What cloud and platforms does Sunday use?
The cloud and platforms named in Sunday job postings are Linux (3), Kubernetes (1), RTOS (1) (postings in brackets).
What skills do you need for a Robotics job at Sunday?
Robotics postings at Sunday most often require C++ (3), Python (3), out of 4 postings in the last 12 months.
Is the Sunday tech stack changing?
Yes. AI Agents first appeared in Sunday job postings in the last six months.
How modern is the Sunday tech stack?
Sunday 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: 2; legacy ones: 0.
How does Alion know the Sunday tech stack?
Alion reads every job posting Sunday publishes and tags the technologies each one names. The figures on this page count the 18 postings of the last 12 months and were updated on Sep 28, 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, "Sunday tech stack: 33 technologies from 18 job postings", as of Sep 28, 2026. https://alion.io/company/sunday/technologies