
Hardware Electro-Optics Engineer
Required skills
- electro-optical subsystem requirements
- high-speed communication systems
- system-level performance
- electro-optical modeling
- simulation
- performance analysis
- link budgets
- signal integrity analyses
- optical transmission systems
- hardware design reviews
Nice to have
- coherent optical communication systems
- FPGA-based platforms
- digital hardware architectures
- high-speed analog circuit design
- mixed-signal circuit design
- optical simulation tools
Role summary
Seeking an experienced Hardware Electro-Optics Engineer with deep expertise in electro-optical technologies and hands-on laboratory experience. This role involves defining, analyzing, and validating electro-optical subsystem requirements for high-speed communication systems. You will collaborate with cross-functional teams, perform modeling and simulation, develop link budgets, and lead integration and testing activities. Responsibilities include creating technical documentation and supporting product qualification. Requires a degree in a related technical field and significant industry experience in electro-optical hardware design, integration, and testing, with proficiency in MATLAB, Simulink, and scripting languages like Python.
The successful candidate will possess deep expertise in electro-optical technologies, strong analytical capabilities, and extensive hands-on laboratory experience. You will collaborate closely with cross-functional teams including Optical Engineering, Firmware (FW), Hardware Systems, DSP, and Product Development teams to deliver industry-leading optical networking solutions.
Responsibilities
Define, analyze, and validate electro-optical subsystem requirements and specifications for high-speed communication systems.
Collaborate with Optical, Hardware Systems, DSP, FPGA, and Firmware teams to ensure optimal system-level performance.
Perform electro-optical modeling, simulation, and performance analysis to evaluate design trade-offs and support architecture decisions.
Develop and validate system-level link budgets, signal integrity analyses, and performance metrics for optical transmission systems.
Support hardware design reviews and provide technical leadership in electro-optical design decisions.
Lead integration activities for circuit pack assemblies and electro-optical subsystems.
Develop comprehensive test methodologies and execute characterization, validation, and reliability testing.
Analyze test results, identify root causes of performance issues, and drive corrective actions.
Create detailed technical documentation, including specifications, test plans, procedures, and reports.
Work closely with manufacturing and product engineering teams to support product qualification and production readiness.
Qualifications
Bachelor's, Master's, or PhD degree in Electrical Engineering, Physics, Optical Engineering, or a related technical discipline.
Significant industry experience in electro-optical hardware design, integration, and testing.
Strong understanding of opto-electronic devices and subsystems, including lasers, modulators, photodiodes, transceivers, and optical networking technologies.
Extensive hands-on laboratory experience testing and characterizing electro-optical components and systems.
Experience using MATLAB and Simulink for system modeling, performance analysis, and DSP algorithm evaluation.
Experience creating automated test solutions using scripting languages such as Python, MATLAB, Perl, or similar.
Demonstrated ability to develop detailed test plans, execute validation activities, and document results.
Excellent troubleshooting, debugging, and root-cause analysis skills.
Strong written and verbal communication skills with the ability to present technical findings to multidisciplinary teams.
Preferred Qualifications
Experience with coherent optical communication systems and high-speed optical transport technologies.
Familiarity with FPGA-based platforms and digital hardware architectures.
Knowledge of high-speed analog and mixed-signal circuit design principles.
Experience with optical and electrical simulation tools.
Familiarity with telecom/networking standards and optical transmission protocols.
Experience working in product development environments from concept through production release.
MATLAB / Simulink
Python or other scripting languages
Digital Signal Processing (DSP)
Optical system simulation and modeling
Oscilloscopes, Bit Error Rate Testers (BERT), Optical Spectrum Analyzers (OSA), Network Analyzers, and related laboratory instrumentation
Automated test development and data analysis
Sample Nokia interview questions
- 1
Merge Overlapping Intervals Merge overlapping intervals in an array. Input: intervals = [[1,4],[4,5]] Output: [[1,5]] Explanation: The intervals touch exactly at the 4 mark, so they are successfully merged into a single continuous interval.
codingmedium - 2
Dot Product of Two Sparse Vectors Calculate the dot product of two sparse vectors. Input: nums1 = [0,1,0,0,2], nums2 = [0,0,0,0,5] Output: 10 Explanation: Multiplies the aligned non-zero values (2 * 5) and ignores all the zeros, yielding a dot product of 10.
codingmedium - 3
Vertical Order Traversal Perform a vertical order traversal of a binary tree. Input: root = [1,2,3,4,5,6,7] Output: [[4],[2],[1,5,6],[3],[7]] Explanation: Traverses the tree maintaining column indices, seamlessly grouping nodes that share the exact same vertical alignment.
codingmedium - 4
Continuous Subarrays Sum Equals K Find the total number of continuous subarrays whose sum equals K. Input: nums = [1,2,3], k = 3 Output: 2 Explanation: Both the contiguous subarray [1,2] and the single-element subarray [3] sum perfectly to the target of 3.
codingmedium - 5
Iterator over a Binary Search Tree Implement an iterator over a binary search tree. Input: root = [7,3,15,null,null,9,20], calls: next(), hasNext(), next() Output: 3, TRUE, 7 Explanation: The iterator yields the smallest value (3), confirms more nodes exist, then properly yields the next in-order value (7).
codingmedium
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