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About the Role

Design, simulate, and validate high-speed RFICs for optical transceivers and optical engines. 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.

Responsibilities

• 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
• Mentor and technically guide RFIC engineers and junior designers

Requirements

• 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.
• 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

Skills

• 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

Location

• Huntsville, Alabama

Work Type

• Full-time

Experience Level

• 5-10 years

Education Level

• MSc or PhD in Electrical Engineering, Microelectronics, or related field

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
• Free drinks and fruits
• Employee discounts e. g. for events and branded products

About the Company

• 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.