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About the Role

As an RF Design Engineer, you will play a key role in the development of next-generation optical communication products. Working within an international engineering team, you will lead RF design and development activities for optical subassemblies (OSAs) and optoelectronic modules, supporting cutting-edge coherent optical transceivers, photonic integrated circuit (PIC) technologies and advanced high-speed communication systems.

Responsibilities

Lead RF design and development activities for optical subassemblies (OSAs) and optoelectronic modules supporting next-generation high-speed and terahertz communication products.
Develop innovative RF interconnect and packaging concepts for coherent optical transceivers, PIC-based products and advanced optical modules.
Design, simulate and optimise high-frequency RF transmission structures operating in the multi-gigahertz and terahertz frequency range, considering signal integrity, manufacturability, reliability and cost.
Define RF specifications and interface requirements while coordinating technical requirements with cross-functional teams, suppliers and customers.
Evaluate and optimise critical RF interfaces, including bump bonds, wire bonds, package transitions, substrates, PCBs and connector interfaces.
Support Design for Manufacturing (DFM) activities with suppliers and manufacturing partners to ensure scalable and robust production solutions.
Assess the impact of assembly processes and manufacturing tolerances on RF performance and product reliability.
Present RF design concepts, simulation results and technical recommendations to engineering teams and management.

Requirements

A Master's or PhD in Electrical Engineering, RF/Microwave Engineering, Physics or a related discipline.
At least five years' experience in RF design and development, with a strong focus on microwave and millimetre-wave applications.
Proven experience in RF transmission line design, impedance matching, signal integrity analysis and electromagnetic simulation.
A strong understanding of high-frequency packaging technologies, including bump bonding, wire bonding and package transitions.
Knowledge of optical transceiver architectures, optoelectronic packaging and substrate/PCB design.
Experience using RF simulation and electromagnetic modelling tools such as AWR Microwave Office, CST Studio Suite or similar software.
Familiarity with Design for Manufacturing (DFM) principles and supplier collaboration.
Experience working with high-speed optical communication products, coherent optical technologies, PIC-based products or advanced packaging solutions would be advantageous.
Strong analytical and problem-solving skills with the ability to communicate complex technical concepts effectively.
Excellent English communication skills and the ability to work within multidisciplinary international teams.
German language skills would be an advantage.
Experience supporting technical customer discussions and supplier qualification activities.
Familiarity with co-design approaches involving RF, optical, mechanical and manufacturing disciplines.

Skills

RF design
RF development
Optical communication products
Coherent optical transceivers
Photonic integrated circuit (PIC) technologies
High-speed communication systems
RF interconnect design
Packaging concepts
High-frequency RF transmission structures
Signal integrity
Manufacturability
Reliability
Cost optimization
RF specifications
Interface requirements
RF interfaces
Bump bonds
Wire bonds
Package transitions
Substrates
PCBs
Connector interfaces
Design for Manufacturing (DFM)
Assembly processes
Manufacturing tolerances
RF simulation
Electromagnetic modelling
AWR Microwave Office
CST Studio Suite
Analytical skills
Problem-solving skills
Technical communication
English communication
Multidisciplinary teamwork
Customer discussions
Supplier qualification
Co-design

Location

Germany

Work Type

Full-time

Experience Level

At least five years' experience in RF design and development

Education Level

Master's or PhD in Electrical Engineering, RF/Microwave Engineering, Physics or a related discipline

Benefits

Flexible working hours
30 days' annual leave, plus overtime entitlement
Comprehensive health benefits, including additional health insurance or a fitness programme
Financial support for public transport
Bike leasing programme
Performance bonus
Company pension scheme

About the Company

Finisar Germany GmbH, a Coherent subsidiary serves multiple businesses within Coherent.
One focus area is the development of leading-edge high performance, high capacity optical front-end solutions for long reach optical transmission.
A special field is utilizing advanced photonic technologies in support of driving highly integrated coherent products.
Another focus area is high speed detectors, scaling up to frequencies of up to 100GHz, utilized in research and test & measurement but more and more in communication applications too.
We owe our worldwide technological leadership to the profound knowledge and experience of our employees.
This awareness characterizes our corporate culture - which is open and communicative and ensures trusting cooperation.
Each individual contributes to the company's success with his or her knowledge and responsibility.
The passion and commitment of our team are the engine of our company!

Equal Opportunity

We are committed to creating an inclusive and accessible recruitment experience and encourage applications from individuals of all backgrounds.