Lead Software Engineer - Photonic Applications (f/m/d)

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{
  "id": "2528509",
  "name": "Lead Software Engineer - Photonic Applications (f/m/d)",
  "office": "Stuttgart",
  "keywords": [],
  "schedule": "full-time",
  "createdAt": "2026-02-12T18:39:36+00:00",
  "seniority": "experienced",
  "department": "Software",
  "occupation": "software_and_web_development",
  "subcompany": null,
  "employmentType": "permanent",
  "jobDescriptions": [
    {
      "name": "Your mission",
      "value": "The future of AI computing builds on light. Q.ANT is building photonic processing systems that compute with light - delivering a scalable, energy-efficient alternative to transistor-based architectures for next-generation AI and HPC applications.<br><br><p>As <strong>Lead Software Engineer - Photonic Applications (f/m/d)</strong>, you'll bridge cutting-edge photonic hardware and real-world applications. Your work creates the evidence that photonic computing works: compelling demos, developer enablement, and direct partner collaboration that turn hardware capabilities into tangible success stories.</p><p>You'll work across the full stack – from performance-optimized algorithms to developer-facing documentation – helping partners, clients, and investors understand why computing with light is the future.</p><br><strong>What You Will Do</strong><ul><li>Figure out how <strong>algorithms make a difference with photonics</strong></li><li><strong>Optimize algorithms</strong> and <strong>develop performance-critical code</strong> (Python, C/C++, Rust) to demonstrate the full potential of photonic hardware through compelling performance benchmarks</li><li><strong>Collaborate with algorithms and software ecosystem teams</strong> to refine architectural designs and provide structured feedback from real-world applications</li><li><strong>Work with external partners</strong> and clients on use cases and proof-of-concepts that demonstrate the value of photonic computing for AI and scientific workloads</li><li><strong>Build developer-facing assets</strong>: tutorials, reference implementations, demos, benchmarks, Jupyter notebooks, and documentation that enable developers to write optimized code for photonic hardware</li><li><strong>Deliver public presentations, workshops,</strong> and technical <strong>briefings</strong> on photonic computing applications</li><li><strong>Manage stakeholder expectations</strong> and <strong>project timelines</strong> across client engagements and partner collaborations</li><li><strong>Contribute</strong> to Q.ANT's <strong>Open Source initiatives</strong> and <strong>developer ecosystem</strong></li></ul>"
    },
    {
      "name": "Your profile",
      "value": "<ul><li><strong>5+ years</strong> in <strong>software engineering</strong> across the stack with strong proficiency in <strong>Python</strong> <strong>plus</strong> <strong>C/C++</strong> <strong>respectively</strong> <strong>Rust</strong> for performance-critical components</li><li><strong>5+ years</strong> working in the <strong>context of external partners</strong>, clients, or developer communities</li><li><strong>Deep expertise</strong> in <strong>AI algorithms and scientific computing</strong> (PyTorch, JAX, TensorFlow) with understanding of <strong>hardware acceleration architectures</strong> and <strong>performance optimization</strong></li><li>Experience developing <strong>demos/PoCs for novel hardware platforms</strong> and <strong>creating technical enablement content</strong> for developers is a <strong>plus</strong></li><li><strong>Familiarity</strong> with <strong>Open Source development workflows</strong> and <strong>tooling</strong> (GitHub, CI/CD pipelines, test frameworks, Jupyter notebooks, package distribution)</li><li><strong>Bachelor's or Master's degree</strong> in Computer Science, Computer Engineering, Physics, Mathematics, or related technical field</li><li><strong>Fluent</strong> in English; German is a plus</li></ul>"
    },
    {
      "name": "Why us?",
      "value": "<ul><li><strong>Make impact at scale:</strong> Help solve one of computing's biggest challenges – making growing demand in compute and sustainability go hand in hand</li><li><strong>Work on the leading edge:</strong> Photonic AI acceleration technologies that will define the next decade of computing – already validated in production HPC environments</li><li><strong>Own your work from day one:</strong> Shape design and code of software, client solutions, and public collaterals on your own, with direct impact on product success and the future of AI infrastructure</li><li><strong>Fast-track your growth:</strong> Work on challenges with few industry precedents – every problem you solve becomes new institutional knowledge and potentially industry-defining IP</li><li><strong>Be the multiplier:</strong> Your work enables entire developer communities and directly helps clients succeed with photonic computing</li><li><strong>World-class team:</strong> Collaborate alongside a passionate, international, cross-functional team of experts in photonics, processor design, and AI software</li><li><strong>Direct access to leadership:</strong> Work closely with the company's founders, including CEO Dr. Michael Förtsch, and the Q.ANT senior leadership team</li><li><strong>Collaborative culture:</strong> Innovative work environment that values technical excellence, open communication, and pragmatic problem-solving</li><li><strong>Be part of history:</strong> Join at the inflection point where photonic computing transitions from research to mainstream – your contributions will shape this transformation</li></ul><br><p>We're looking for a technical problem-solver who gets energized by turning cutting-edge research into production-ready applications, working directly with partners to solve real challenges, and enabling developers to unlock the full potential of photonic computing.</p><br><p>Ready to show the world that photonic computing works? We are looking forward to receiving your application!</p><br><p><em>Q.ANT is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.</em></p>"
    }
  ],
  "occupationCategory": "it_software",
  "recruitingCategory": "Permanent Employee"
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