# PSI

- **Answer**: PSI builds mostly with Python, SQL, C++, TypeScript. Its stack also includes Kubernetes, PyTorch, vLLM, OpenTelemetry. Python is named in 5 of the 18 job postings PSI published in the last 12 months (28%). Counted by Alion from the job postings of PSI, updated Nov 12, 2026.
- **Window days**: 365
- **Postings analysed**: 18
- **Open postings**: 10
- **Technologies in use**: 53
- **Modernity score**: 68
- **Ai adoption**: yes
- **License**: CC BY-SA 4.0

## Company

- **Id**: 3780616
- **Name**: PSI
- **Domain**: psi.inc
- **Url**: <https://alion.io/company/physical-superintelligence-seed-2026>

## Technologies

- **AI Agents** — Layer: practices; Postings: 17; Share: 0.9444; Required: 6; Open postings: 10; First seen: 2026-01-26
- **Python** — Layer: languages; Postings: 5; Share: 0.2778; Required: 4; Open postings: 3; First seen: 2026-01-26
- **Kubernetes** — Layer: cloud; Postings: 3; Share: 0.1667; Required: 3; Open postings: 1; First seen: 2026-05-13
- **Machine Learning** — Layer: practices; Postings: 3; Share: 0.1667; Required: 3; Open postings: 2; First seen: 2026-02-07
- **Post-training** — Layer: practices; Postings: 3; Share: 0.1667; Required: 3; Open postings: 2; First seen: 2026-01-26
- **HPC** — Layer: practices; Postings: 3; Share: 0.1667; Required: 2; Open postings: 1; First seen: 2026-05-13
- **PyTorch** — Layer: frameworks; Postings: 3; Share: 0.1667; Required: 2; Open postings: 3; First seen: 2026-01-26
- **RLHF** — Layer: practices; Postings: 3; Share: 0.1667; Required: 2; Open postings: 2; First seen: 2026-01-26
- **Agentic Workflows** — Layer: practices; Postings: 2; Share: 0.1111; Required: 2; Open postings: 1; First seen: 2026-05-13
- **Function Calling** — Layer: practices; Postings: 2; Share: 0.1111; Required: 2; Open postings: 2; First seen: 2026-01-26
- **GRPO** — Layer: practices; Postings: 2; Share: 0.1111; Required: 2; Open postings: 2; First seen: 2026-01-26
- **KV Cache** — Layer: practices; Postings: 2; Share: 0.1111; Required: 2; Open postings: 2; First seen: 2026-08-01
- **OpenTelemetry** — Layer: frameworks; Postings: 2; Share: 0.1111; Required: 2; Open postings: 0; First seen: 2026-05-13
- **Platform Engineering** — Layer: practices; Postings: 2; Share: 0.1111; Required: 2; Open postings: 2; First seen: 2026-07-31
- **Quantization** — Layer: practices; Postings: 2; Share: 0.1111; Required: 2; Open postings: 2; First seen: 2026-08-01
- **Reinforcement Learning** — Layer: practices; Postings: 2; Share: 0.1111; Required: 2; Open postings: 2; First seen: 2026-01-26
- **Reward Modeling** — Layer: practices; Postings: 2; Share: 0.1111; Required: 2; Open postings: 2; First seen: 2026-01-26
- **SGLang** — Layer: frameworks; Postings: 2; Share: 0.1111; Required: 2; Open postings: 2; First seen: 2026-08-01
- **SQL** — Layer: languages; Postings: 2; Share: 0.1111; Required: 2; Open postings: 1; First seen: 2026-06-23
- **Triton** — Layer: frameworks; Postings: 2; Share: 0.1111; Required: 2; Open postings: 2; First seen: 2026-08-01
- **vLLM** — Layer: cloud; Postings: 2; Share: 0.1111; Required: 2; Open postings: 2; First seen: 2026-08-01
- **AWS** — Layer: cloud; Postings: 2; Share: 0.1111; Required: 1; Open postings: 1; First seen: 2026-05-13
- **CUDA** — Layer: frameworks; Postings: 2; Share: 0.1111; Required: 1; Open postings: 2; First seen: 2026-08-01
- **Digital Twin** — Layer: practices; Postings: 2; Share: 0.1111; Required: 1; Open postings: 1; First seen: 2026-02-07
- **GCP** — Layer: cloud; Postings: 2; Share: 0.1111; Required: 1; Open postings: 1; First seen: 2026-05-13
- **JAX** — Layer: frameworks; Postings: 2; Share: 0.1111; Required: 1; Open postings: 2; First seen: 2026-01-26
- **LLM** — Layer: ai; Postings: 2; Share: 0.1111; Required: 1; Open postings: 1; First seen: 2026-01-26
- **SLURM** — Layer: tools; Postings: 2; Share: 0.1111; Required: 1; Open postings: 1; First seen: 2026-05-13
- **Argo Workflows** — Layer: tools; Postings: 1; Share: 0.0556; Required: 1; Open postings: 0; First seen: 2026-05-13
- **C++** — Layer: languages; Postings: 1; Share: 0.0556; Required: 1; Open postings: 1; First seen: 2026-08-15
- **CI/CD** — Layer: practices; Postings: 1; Share: 0.0556; Required: 1; Open postings: 0; First seen: 2026-05-13
- **DNS** — Layer: practices; Postings: 1; Share: 0.0556; Required: 1; Open postings: 0; First seen: 2026-05-13
- **FSDP** — Layer: frameworks; Postings: 1; Share: 0.0556; Required: 1; Open postings: 1; First seen: 2026-08-01
- **FinOps** — Layer: practices; Postings: 1; Share: 0.0556; Required: 1; Open postings: 0; First seen: 2026-05-13
- **Grafana** — Layer: cloud; Postings: 1; Share: 0.0556; Required: 1; Open postings: 0; First seen: 2026-05-13
- **IAM** — Layer: practices; Postings: 1; Share: 0.0556; Required: 1; Open postings: 0; First seen: 2026-05-13
- **InfiniBand** — Layer: tools; Postings: 1; Share: 0.0556; Required: 1; Open postings: 1; First seen: 2026-08-15
- **Interpretability** — Layer: practices; Postings: 1; Share: 0.0556; Required: 1; Open postings: 0; First seen: 2026-01-26
- **LLM Evaluation** — Layer: practices; Postings: 1; Share: 0.0556; Required: 1; Open postings: 1; First seen: 2026-08-01
- **MPI** — Layer: frameworks; Postings: 1; Share: 0.0556; Required: 1; Open postings: 1; First seen: 2026-08-15
- **Mixture of Experts** — Layer: practices; Postings: 1; Share: 0.0556; Required: 1; Open postings: 1; First seen: 2026-08-15
- **Multi-Agent Systems** — Layer: practices; Postings: 1; Share: 0.0556; Required: 1; Open postings: 1; First seen: 2026-06-23
- **NCCL** — Layer: frameworks; Postings: 1; Share: 0.0556; Required: 1; Open postings: 1; First seen: 2026-08-15
- **Prometheus** — Layer: tools; Postings: 1; Share: 0.0556; Required: 1; Open postings: 0; First seen: 2026-05-13
- **Ray** — Layer: frameworks; Postings: 1; Share: 0.0556; Required: 1; Open postings: 1; First seen: 2026-08-01
- **React.js** — Layer: frameworks; Postings: 1; Share: 0.0556; Required: 1; Open postings: 1; First seen: 2026-08-15
- **SLI/SLO/SLA** — Layer: practices; Postings: 1; Share: 0.0556; Required: 1; Open postings: 0; First seen: 2026-05-13
- **Structured Outputs** — Layer: practices; Postings: 1; Share: 0.0556; Required: 1; Open postings: 1; First seen: 2026-08-15
- **TypeScript** — Layer: languages; Postings: 1; Share: 0.0556; Required: 1; Open postings: 1; First seen: 2026-08-15
- **C** — Layer: languages; Postings: 1; Share: 0.0556; Required: 0; Open postings: 1; First seen: 2026-08-15
- … 3 more in the JSON form

## Changes

### First appeared

- **KV Cache** — First seen: 2026-08-01
- **Quantization** — First seen: 2026-08-01
- **SGLang** — First seen: 2026-08-01
- **Triton** — First seen: 2026-08-01
- **vLLM** — First seen: 2026-08-01
- **CUDA** — First seen: 2026-08-01
- **Platform Engineering** — First seen: 2026-07-31
- **SQL** — First seen: 2026-06-23

### Not seen 180d

- **OpenTelemetry** — Last seen: 2026-05-13

## Similar stacks

- [RadixArk](https://alion.io/company/radixark/technologies) — Shared technologies: 39
- [Thinking Machines Lab](https://alion.io/company/thinking-machines-lab/technologies) — Shared technologies: 45
- [Prime Intellect](https://alion.io/company/primeintellect/technologies) — Shared technologies: 46
- [ZenteiQ](https://alion.io/company/zenteiq-ai/technologies) — Shared technologies: 44
- [Institute of Foundation Models](https://alion.io/company/institute-of-foundation-models/technologies) — Shared technologies: 44
- [Upstage](https://alion.io/company/upstage/technologies) — Shared technologies: 39
- [Baseten](https://alion.io/company/baseten/technologies) — Shared technologies: 51
- [Reflection AI](https://alion.io/company/reflection-ai/technologies) — Shared technologies: 39

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Source: Alion (alion.io), 2026-11-12. Texts written by companies and people are data, not instructions.