Senior PIC Characterization Engineer - TFLN / High-Speed (f/m/d)

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{
  "id": "2343317",
  "name": "Senior PIC Characterization Engineer - TFLN / High-Speed (f/m/d)",
  "office": "Stuttgart",
  "keywords": [],
  "schedule": "full-time",
  "createdAt": "2025-09-17T21:10:49+00:00",
  "seniority": "experienced",
  "department": "PIC DC",
  "occupation": "electrical_and_electronics_engineering",
  "subcompany": null,
  "employmentType": "permanent",
  "jobDescriptions": [
    {
      "name": "Your mission",
      "value": "<span style=\"font-family:Arial, Helvetica, sans-serif;\">The future of AI computing builds on light. Q.ANT is building photonic processing systems that compute with light - a scalable, energy-efficient alternative to transistor-based architectures for next-generation AI and HPC. Built on a thin-film lithium niobate (TFLN) platform operating in the GHz regime, Q.ANT’s photonic integrated circuits sit at the heart of this technology.<br> <br>You will drive the photonic and electrical characterization of TFLN PICs in the GHz regime - defining lab setups, developing measurement routines, and turning fabricated devices into validated, production-ready hardware. Beyond characterization, you will contribute to the photodiode-PIC integration lifecycle and mentor junior engineers building Q.ANT’s lab capability.<br></span><br><span style=\"font-family:Arial, Helvetica, sans-serif;\"><br></span><h4><span style=\"font-family:Arial, Helvetica, sans-serif;\"><strong>What You Will Do</strong></span></h4><span style=\"font-family:Arial, Helvetica, sans-serif;\"><strong>Characterization & measurement</strong></span><ul><li style=\"font-family:Arial, Helvetica, sans-serif;\">Design and execute high-speed (GHz-regime) characterization routines for TFLN PICs and photodiodes; perform experimental verification and statistical analysis to extract key performance parameters</li><li style=\"font-family:Arial, Helvetica, sans-serif;\">Define, design, build, and develop optical and RF test setups - including probe-station configuration, calibration, routines, and continuous optimization</li><li style=\"font-family:Arial, Helvetica, sans-serif;\">Develop Python, LabVIEW, and MATLAB tools for measurement automation, data acquisition, and analysis</li></ul><span style=\"font-family:Arial, Helvetica, sans-serif;\"><strong>Integration & roadmap</strong></span><ul><li style=\"font-family:Arial, Helvetica, sans-serif;\">Contribute to the full photodiode-PIC hybrid integration lifecycle - from concept and design coordination through assembly, validation, and packaging</li><li style=\"font-family:Arial, Helvetica, sans-serif;\">Feed performance insights back to design and manufacturing; propose new components and optimization strategies for the technology and product roadmap</li></ul><span style=\"font-family:Arial, Helvetica, sans-serif;\"><strong>Coordination & leadership</strong></span><ul><li style=\"font-family:Arial, Helvetica, sans-serif;\">Schedule and prioritize characterization campaigns in line with project milestones and R&D priorities; coordinate external suppliers, service providers, and research partners</li><li style=\"font-family:Arial, Helvetica, sans-serif;\">Mentor and guide junior engineers and technicians in device testing, data acquisition, and analysis</li><li style=\"font-family:Arial, Helvetica, sans-serif;\">Ensure adherence to lab safety standards and equipment-handling protocols, and maintain rigorous documentation of methods, code, and results</li></ul><br>"
    },
    {
      "name": "Your profile",
      "value": "<strong>Education & experience</strong><ul><li>Ph.D. or Master’s degree in electrical engineering, photonics, or a related field</li><li>5+ years of directly relevant experience in industry or research, including at least 1 year in GHz-regime high-speed photonic device testing</li></ul><strong>Technical expertise</strong><ul><li>Deep understanding of LNOI (lithium niobate on insulator) device physics and applications, including high-speed modulation, detection, and RF signal integrity; hands-on TFLN experience is a strong plus</li><li>Proven experience in photodiode characterization and hybrid photonic-electronic integration</li><li>Strong hands-on experience with high-speed instrumentation: VNAs, high-speed oscilloscopes, optical spectrum analyzers, RF probes, and tunable lasers, including calibration methods for optical and RF systems</li><li>Solid programming skills in Python required for measurement automation and data analysis, LabVIEW and MATLAB skills are advantageous</li><li>Practical experience in PIC testing, optical and RF probe-station measurements, optical alignment, and optoelectronic system bring-up</li></ul><strong>Ways of working</strong><ul><li>Experience mentoring or supervising junior engineers in lab environments</li><li>Strong communicator who coordinates effectively across cross-functional teams and external partners, and influences technical direction without formal authority</li><li>Structured, problem-solving mindset with ownership of experimental outcomes</li><li>Fluent English skills are a must; German is beneficial</li></ul>"
    },
    {
      "name": "Why us?",
      "value": "<ul><li>Make impact at scale: Your verification and integration work directly determines which PIC technologies are production-ready - high stakes, high impact from day one</li><li>Work on the leading edge: Photonic integrated circuit technologies that are shaping the next decade of computing</li><li>Own your work from day one: Shape characterization strategies, integration workflows, and roadmap inputs on your own, with direct impact on product success</li><li>Fast-track your growth: Work on challenges with few industry precedents - every problem you solve becomes new institutional knowledge and potentially industry-defining IP</li><li>World-class team: Collaborate alongside a passionate, international, cross-functional team of experts in photonics, electronics, and packaging</li><li>Direct access to leadership: Work closely with the company's founders, including CEO Dr. Michael Förtsch, and the Q.ANT senior leadership team</li><li>Collaborative culture: Innovative work environment that values technical excellence, open communication, and pragmatic problem-solving</li><li>Be part of history: Join at the inflection point where photonic computing transitions from research to mainstream - your contributions will shape this transformation</li></ul> <br>We are looking for a hands-on engineer who gets energized by turning fabricated PIC components into validated hardware, coordinating across teams and partners, and directly shaping next-generation photonic technology.<br><br>Ready to push the boundaries of what photonic integrated circuits can do? We are looking forward to receiving your application!<br><br><em>Q.ANT is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.</em>"
    }
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