# Firmware Development & Product Integration Engineer

**Company**: Cisco
**Location**: Nuremberg
**Experience**: senior
**Job type**: full-time
**Category**: Engineering
**Industry**: Technology

**Apply**: https://cisco.wd5.myworkdayjobs.com/en-US/Cisco_Careers/job/Nuremberg-Germany/Firmware-Development---Product-Integration-Engineer_2028200-1?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_e5d6e4c6-733

## Description

Cisco Germany is seeking a Firmware Development & Product Integration Engineer to join our Optical Transceiver Engineering team in Nuremberg, developing next-generation 100G+ optical modules that power global cloud and AI infrastructure.

Our Optical Engineering team in Nuremberg is at the forefront of designing and delivering high-speed optical transceiver modules operating at 100G/s and beyond. As data center bandwidth and AI/ML interconnect demands accelerate globally, our team bridges the gap between optics, digital signal processors (DSPs), ASICs, and embedded firmware to power Cisco's world-class routing and switching platforms.

As a Firmware Development & Product Integration Engineer, you will take end-to-end ownership of embedded firmware development and hardware-software integration for our next-generation optical transceiver modules. Operating with a high degree of autonomy, you will design robust diagnostic and control firmware on microcontrollers and ASICs, investigate cross-subsystem behaviors, and present clear technical summaries to cross-functional engineering teams from early prototype bring-up through volume qualification.

**Key Responsibilities:**

- Architect & Develop Embedded Firmware: Design, implement, and maintain high-reliability embedded firmware in C (and C++) for microcontroller- and ASIC-based controllers operating in optical modules at 100G/s and above.

- Implement Device Diagnostics & Control: Develop low-level device control, system monitoring, diagnostic routines, fault handling, and host-management interfaces for internal ASICs and external peripheral components.

- Drive Hardware-Software Integration: Integrate firmware with electro-optic components, including lasers, photodiodes, DSPs, and module controllers, to ensure optimal optical link performance and reliability.

- Lead Prototype Bring-Up & Root-Cause Analysis: Perform hands-on board bring-up, debug cross-domain electrical/firmware issues, and methodically investigate performance and interoperability anomalies.

- Autonomous Technical Communication: Independently synthesize complex test results, document architectural decisions, and effectively present technical findings and project status to multidisciplinary stakeholders.

**Minimum Qualifications**

- 5+ years of hands-on professional experience in embedded software development using C (and C++).

- Proven track record developing firmware on microcontrollers and controllers for hardware diagnostics, device control, and interface management with ASICs and external components.

- Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, Computer Science, or equivalent practical experience.

- Hands-on proficiency with low-level communication protocols (I2C, SPI, UART, MDIO), reading schematics and component datasheets, and using embedded lab equipment (oscilloscopes, logic analyzers, JTAG).

- Demonstrated ability to work autonomously, lead technical problem-solving investigations, and summarize and present complex project details clearly to cross-functional teams.

**Preferred Qualifications**

- Experience developing firmware with a Real-Time Operating System (RTOS) in resource-constrained environments.

- Domain knowledge of optical transceivers (100G/s and above), coherent optics, high-speed SerDes, DSPs, or optical monitoring subsystems.

- In-depth understanding of optical management and communications standards, such as CMIS (Common Management Interface Specification), SFF specifications, and Ethernet protocols.

- Proficiency in Python or similar scripting languages for test automation, hardware control, and systematic data analysis.

- Background in Design Verification Testing (DVT), product qualification lifecycles, or manufacturing test readiness.

## Skills

### Required
- C
- C++
- embedded software development
- microcontrollers
- ASICs
- low-level communication protocols
- electrical engineering
- computer engineering
- computer science

### Nice to have
- Real-Time Operating System (RTOS)
- optical transceivers
- coherent optics
- high-speed SerDes
- DSPs
- optical monitoring subsystems
- CMIS
- SFF specifications
- Ethernet protocols
- Python

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Source: [Apply at cisco.wd5.myworkdayjobs.com](https://cisco.wd5.myworkdayjobs.com/en-US/Cisco_Careers/job/Nuremberg-Germany/Firmware-Development---Product-Integration-Engineer_2028200-1?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)