Advanced RFCI Engineer (M/F/D)

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Principal Duties and Essential Functions Design, simulate, and validate high-speed RFICs for optical transceivers and optical engines including Laser Drivers, TIAs, limiting amplifiers, and analog front-end circuits Develop circuit architectures and perform transistor-level design to meet performance, power, area, and cost objectives Support RFIC development throughout the complete product lifecycle from concept definition through silicon validation and production release Perform schematic design, simulation, verification, and performance optimization using industry-standard EDA tools Collaborate with layout engineers to ensure successful implementation and verification of RFIC designs Analyze and optimize key performance parameters including bandwidth, gain, noise, linearity, jitter, output swing, power consumption, and reliability Support silicon bring-up, laboratory characterization, debugging, and design correlation activities Contribute to RFIC specifications, technical documentation, design reviews, and product development milestones Participate in technical reviews and contribute to architecture trade-off discussions Support technology evaluation and feasibility studies for next-generation optical engine platforms Collaborate with Silicon Photonics, DSP, Optical Systems, Packaging, Test, and Manufacturing teams to achieve product objectives Assist in developing design methodologies, simulation flows, and best practices Mentor junior engineers in specific technical areas when appropriate Support technology evaluation and feasibility studies for next-generation optical engine platforms Collaborate with Silicon Photonics, DSP, Optical Systems, Packaging, Test, and Manufacturing teams to achieve product objectives Assist in developing design methodologies, simulation flows, and best practices Mentor junior engineers in specific technical areas when appropriate Mentor and technically guide RFIC engineers and junior designers Knowledge, Skills and Experience Required MSc or PhD in Electrical Engineering, Microelectronics, or related field 5-10 years’ experience in high‑speed analog / RFIC design Experience developing integrated circuits for communication, datacom, telecom, or optical applications. Proven experience supporting silicon validation and characterization activities. Deep expertise in: RFIC and high‑speed analog circuit design; Laser Drivers, TIAs, limiting amplifiers, clock and data recovery support circuits, or related analog front-end functions; noise, linearity, signal integrity, and power optimization Strong experience with Cadence design flow (Virtuoso, Spectre, EM tools) Experience supporting silicon bring‑up, characterization, and qualification Solid understanding of electro‑optic integration with Silicon Photonics Strong analytical and problem-solving skills Ability to work independently on complex technical challenges Strong communication and collaboration skills across multidisciplinary teams Ability to manage multiple priorities within a dynamic R&D environment Commitment to high-quality engineering practices and documentation Benefits Possibility to work in an international, multicultural environment Strong team-oriented, friendly work culture Flexible working hours model Internal training program Fitness, commuting and kindergarten allowances as well as drinks and fruits for free Employee discounts e. g. for events and branded products Adtran is a leading global provider of fiber-based networking solutions and SaaS applications, focused on the broadband access market. Our comprehensive portfolio spans from the metro core to the customer premises, enabling network providers to deliver Gigabit broadband to every home and business. Our vision is to enable a fully connected world where the power to communicate is available to everyone, everywhere. At Adtran, we believe in our people. With a diverse and inclusive team spread across the globe, our culture embraces creativity and seeks innovation and quality in everything we do. Built on a foundation of communication, trust, collaboration, and an entrepreneurial spirit enables us to be a global technology leader and a strong customer advocate. Adtran began operations in January 1986. Headquartered in Huntsville, Alabama, Adtran is located in Cummings Research Park - the second-largest research park in the U.S. and fourth-largest in the world. Our mailing address is 901 Explorer Boulevard, Huntsville, Alabama, 35806. Adtran, Inc. is a wholly-owned subsidiary of Adtran Holdings, Inc. (NASDAQ:ADTN and FSE: QH9). Find out more at adtran.com, or follow our story on LinkedIn and Twitter.