Full-Time

Software Team Lead

Arago

Arago

11-50 employees

Photonic AI chips for energy efficiency

No salary listed

Île-de-France, France

In Person

Category
Software Engineering (1)
Required Skills
Python
High Performance Computing (HPC)
PyTorch
Machine Learning
C/C++

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Requirements
  • Strong background in systems software for artificial intelligence and machine learning accelerators, graphics processing units, central processing units, or other high-performance computing platforms.
  • Solid understanding of computer architecture, memory systems, parallel computing, and hardware-software interaction.
  • Proven ability to lead small engineering teams while retaining significant individual contribution.
  • Strong C and C++ programming skills.
  • Strong communication and project ownership skills, including translating client requirements into technical scope, deliverables, and realistic timelines.
  • Strong background in testing and deployment infrastructure for large-scale software projects.
  • English proficiency at a proficient level.
Responsibilities
  • Own and drive the software stack for artificial intelligence accelerator products, balancing speed of execution with long-term technical foundations.
  • Work closely with chip architecture and hardware teams on hardware-software co-design and early silicon bring-up.
  • Lead development across kernel libraries, runtimes, drivers, firmware, and developer tooling as needed.
  • Optimize key artificial intelligence workloads for performance, efficiency, memory usage, and reliability on emerging hardware.
  • Stay hands-on with architecture, coding, debugging, reviews, and performance analysis while mentoring a growing team.
  • Partner directly with clients to understand technical requirements, translate them into clear team deliverables, and align scope, priorities, and timelines.
Desired Qualifications
  • Experience with Python and modern machine learning frameworks such as PyTorch, ONNX, and TensorRT.
  • Strong background in mathematics.
  • Hands-on experience with low-level software such as compilers, drivers, and firmware.
  • Experience profiling and optimizing artificial intelligence workloads for performance, memory efficiency, and hardware utilization.
  • Experience with artificial intelligence inference platforms such as vLLM and SGLang.

Arago develops energy-efficient AI hardware using photonic technology. It builds a proprietary photonic processor called JEF that processes data with light instead of electricity, aiming to cut AI compute energy use by 10x–30x while delivering comparable performance to current GPUs. The processor combines photonics, electronics, and software in a hybrid architecture, and is paired with a software stack named CARLOTA that lets AI developers run models on standard frameworks like PyTorch without changing code. This makes it easier to deploy photonic acceleration in AI workloads. Arago differentiates itself by targeting substantial energy savings at scale through photonic computing and by providing an integrated toolchain that abstracts hardware complexity for researchers and developers. Its goal is to reduce the energy consumption of AI computations in data centers and other compute-intensive environments, enabling high-performance AI with lower power use.

Company Size

11-50

Company Stage

Seed

Total Funding

$24.3M

Headquarters

Paris, France

Founded

2024

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Simplify Jobs

Simplify's Take

What believers are saying

  • Arago raised $26 million in July 2025 from Earlybird, Protagonist, and Visionaries Tomorrow.
  • April 2026 Synopsys and Cadence partnerships broaden access to critical EDA and IP.
  • Station F and GlobalFoundries publicized Arago’s first digital-optical chip, amplifying hiring and customer interest.

What critics are saying

  • GPU incumbents keep getting cheaper and faster, squeezing Arago before 2027 commercialization.
  • Photonic chips need flawless silicon-photonics integration; one yield miss can reset Arago's roadmap.
  • If JEF misses production customers after the 2026 tape-out, Arago becomes a science project.

What makes Arago unique

  • Arago’s April 2026 tape-out with GlobalFoundries validates standard-silicon photonic AI manufacturing.
  • JEF combines photons and electronics, targeting 10x-30x lower energy than GPUs.
  • CARLOTA hides photonic complexity and plugs into PyTorch without code rewrites.

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Benefits

Health Insurance

Stock Options

Relocation Assistance

Paid Vacation

Commuter Benefits

Professional Development Budget

Growth & Insights and Company News

Headcount

6 month growth

7%

1 year growth

7%

2 year growth

18%
Dataweek
Aug 27th, 2025
Arago raises $26M for photonic AI chip

Arago, a deeptech startup, has raised $26 million in seed funding to commercialize its photonic AI chip, 'JEF'. This chip uses lasers to process data with photons, offering 10x lower energy consumption than current GPUs. Arago's technology is compatible with existing AI ecosystems and aims to revolutionize AI compute infrastructure. The funding will accelerate product development, expand the team, and enhance business partnerships across France, North America, and Israel.

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EU-Startups
Jul 8th, 2025
French DeepTech company Arago raises €22.1 million to slash AI energy consumption with photonic chip | EU-Startups

Arago, a Paris-based DeepTech startup pioneering a new class of energy-efficient AI chips powered by light, has raised €22.1 million in Seed funding to

Maddyness
Jul 8th, 2025
Arago AI raises $26M for energy-efficient AI

Arago, a French startup, has raised $26 million to address the high energy consumption of AI by developing a photonic processor named "JEF." Founded in April 2024, Arago aims to reduce energy use by utilizing lasers to process data with photons, which generate less heat than traditional electrons. This technology promises to be ten times more energy-efficient than current GPUs. The funding round was led by Earlybird, Protagoniste, and Visionaries Tomorrow, with participation from notable tech figures.