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Full-time
postgraduate degree
Professional Development, Creative Freedom, Experimental Environment
Posted 57d ago
~40 hrs/week
Responsibilities
Rethink and design new LLM algorithms tailored for photonic computing to achieve breakthrough performance. Collaborate with hardware teams to inform the design of future Photonic Integrated Circuits based on algorithmic requirements.
Requirements
Requires a Master's or PhD in Computer Science, Mathematics, or Physics, with deep expertise in LLM core components and transformer bottlenecks. Proficiency in PyTorch or JAX and a track record of contributions to open-source AI projects or academic publications is highly valued.
Full job description
Your mission
The Future of AI Computing is Light, not Electrons. At Q.ANT, we are building photonic processing systems that compute with light-delivering a scalable, energy-efficient alternative to transistor-based architectures for next-generation AI and HPC (High-Performance Computing) applications. Large language models (LLMs) represent one of our prime workloads and our biggest opportunity.
As our Senior LLM Algorithm Developer, your mission is to rethink how LLMs compute from the ground up. Operating deep within the LLM architecture, you will explore how photonic compute capabilities can be best employed for AI workloads. This is a highly creative, research-driven role where your insights and inventions will directly shape our future hardware architecture, driving Q.ANT's ultimate success in the market.
Your Responsibilities
Algorithmic Innovation: Rethink, design, and create new algorithms for LLMs tailored to photonic capabilities, optimizing existing algorithm layers to achieve breakthrough performance.
Modeling & Simulation: Project, model, and simulate the performance and scalability of advanced LLM architectures to ensure future systems can leverage them with maximum confidence.
Hardware-Software Co-Design: Inform and collaborate tightly with the PIC (Photonic Integrated Circuit) and Systems Architecture teams to define the design points of future hardware generations based on algorithmic requirements.
Cross-Functional Collaboration: Act as the vital link bridging software and hardware architecture discussions, aligning closely with the overall vision and direction of the algorithms and applications team.
Ownership & Initiative: Drive your research with a high degree of freedom, moving from first principles to concrete, inventive solutions that push the boundaries of what is possible in analog/digital electronics and photonics.
Your profile
Education: University degree (MSc or PhD) in Computer Science, Mathematics, Physics, or a related technical field. A PhD focused on LLM core components is highly preferred.
Technical Expertise: Deep algorithmic knowledge of how LLMs work and perform, including a comprehensive grasp of the bottlenecks and challenges of vanilla transformers.
Hands-on Experience: Proven experience developing LLM core pieces. Deep academic/PhD research on these topics is highly valued (no formal industry experience required for PhD holders; MSc applicants should demonstrate relevant experience on top of their studies).
Advanced Architectures (Bonus): Familiarity with hybrid architectures (e.g., State Space Models like Mamba and Gated DeltaNet), diffusion language models, reasoning models, or hardware-software co-design for AI accelerators is a strong advantage.
Tools & Frameworks: High proficiency with PyTorch, JAX, frameworks like vllm, llama.cpp, or similar environments.
Track Record: Significant contributions to LLM open-source projects or published papers/talks at leading AI/ML conferences are a huge plus.
Mindset: Strong ownership, solution orientation, and "first principles" thinking. You thrive in a highly creative, research-centric environment where innovation is required.
Communication: Fluent in English (working language).
Why us?
We hire for attitude and train for skills. We value deep curiosity, a research-first mindset, and the drive to invent.
We encourage self-responsibility and accelerate professional development. You will have the freedom to pioneer solutions at the absolute bleeding edge of tech.
We move fast and encourage experimentation. Failure is just a data point on the road to a breakthrough.
Unprecedented Impact: You will have the unique opportunity to develop breakthrough photonic computing technology and leave a lasting imprint on the future of AI infrastructure.
World-Class Team: Work alongside a passionate, international, and highly skilled cross-functional team of physicists, hardware architects, and software engineers.
About us
Who we are and what we do
Q.ANT is a deep-tech scale-up developing photonic processing solutions that compute natively with light and deliver a scalable alternative to transistor-based systems. The analog co-processors are optimised for complex computations and enable energy-efficient performance for next-generation AI and HPC applications. In collaboration with the Institute for Microelectronics Stuttgart IMS CHIPS, Q.ANT operates its own pilot line for photonic chips, based on the material system Thin-Film Lithium Niobate TFLN. Q.ANT was founded by Michael Förtsch in 2018 and is headquartered in Stuttgart, Germany.
Related keywords
LLMPhotonic ComputingHPCTransformersPyTorchJAXvLLMLlama.cppMambaState Space ModelsGated DeltaNetDiffusion ModelsHardware-Software Co-DesignPICThin-Film Lithium NiobateTFLN
Deep-tech scale-up developing photonic co-processors enabling energy-efficient and accelerated AI and HPC
Industry
Computers and Electronics Manufacturing
Company size
51-200 employees
Founded
2018
Headquarters
Stuttgart, Baden-Württemberg
LinkedIn followers
12,916
Total funding
$72M
Q.ANT is a photonic deep-tech scale-up developing photonic processing solutions that compute natively with light and deliver a scalable alternative to transistor-based systems. Its Light Empowered Native Arithmetics (LENA) architecture delivers analog co-processing power optimised for complex computation and enabling energy-efficient performance for next-generation AI and HPC applications. Q.ANT operates its own Thin-Film Lithium Niobate (TFLN) chip pilot line in collaboration with the Institute for Microelectronics Stuttgart, IMS CHIPS, and is currently shipping its Native Processing Servers to selected partners. Q.ANT was founded by Michael Förtsch in 2018 and is headquartered in Stuttgart, Germany.
Offices: Handwerkstrasse 29, Stuttgart, Baden-Württemberg 70565, DE
PhotonicsPhotonic ComputingAI AccelerationEnergy-Efficient AI and HPCAnalog Photonic Comutingand Next Level of Compute for AI and HPCSemiconductorSensorQuantum ComputingManufacturing
How many Software jobs are open in Stuttgart, Germany right now?
There are currently 462 open software positions in Stuttgart, Germany listed on Clera. New openings are added daily as companies post roles.
Which companies are hiring for Software roles in Stuttgart, Germany?
Companies currently hiring include Scalian, CACI International Inc, Fraunhofer IGD, Bosch, DYMATRIX, among others. Browse the listings above to see every active employer.
Are there remote or hybrid Software jobs in Stuttgart, Germany?
Yes — 303 of the 462 open software positions offer remote or hybrid work (54 remote, 249 hybrid).
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