Senior Analog & Mixed-Signal Electronics Engineer

Zealogics.com; San Jose (CA); On-site; USD 120,000 - 150,000; Full time

Job summary

Zealogics.com is seeking an experienced analog circuit designer in San Jose, California. The role involves leading the design and implementation of high-performance analog and mixed-signal circuits, collaborating across teams, and providing technical leadership.

The ideal candidate has a Master's or PhD in Electrical Engineering and 5+ years in circuit design, including experience in ADC/DAC systems, low-noise designs, and high-voltage circuits.

Qualifications

• 5+ years experience in analog or mixed-signal circuit design.
• Strong background in operational amplifiers and precision analog design.
• Experience with ADC/DAC interfacing and high-speed systems.

Responsibilities

• Lead design and implementation of analog circuits.
• Perform modeling, simulation, and validation of designs.
• Collaborate with cross-functional teams for system integration.

Skills

Analog circuit design

Signal integrity

Root cause analysis

System-level optimization

Technical communication

Education

Master’s or PhD in Electrical Engineering

Tools

LTspice

CADENCE

Python

Job description

Duties & Responsibilities

• Lead the design, analysis, and implementation of high-performance analog and mixed-signal circuits, including:
  • High‑speed (>50 MSPS), high‑precision (≥16‑bit) DAC/ADC signal chains
  • Low‑noise, high‑linearity, high dynamic range analog front‑end (AFE) designs
• Design and develop precision high‑voltage circuits with the following characteristics:
  • High frequency (>5 MHz), low distortion, and ultra‑low offset (<1 mV)
  • Operation in high‑voltage environments up to ±225 V, with robust stability and reliability
• Architect and optimize complete end‑to‑end signal chains, including:
  • DAC/ADC interfaces, amplification, filtering, driver stages, feedback loops, and calibration
• Perform modeling, simulation, and performance validation:
  • Develop both system‑level (behavioural) and circuit‑level (SPICE) models
  • Analyze key performance parameters such as noise, distortion, offset, drift, bandwidth, and stability
• Drive laboratory debugging, validation, and system bring‑up:
  • Utilize advanced lab equipment (oscilloscope, spectrum analyzer, network analyzer, etc.)
  • Identify and resolve issues related to signal integrity, EMI/EMC, thermal effects, and parasitics
• Collaborate cross‑functionally with digital, FPGA, system, power, and software teams:
  • Define hardware/firmware/software interfaces
  • Support system‑level integration and validation
• Support full product lifecycle, from concept to volume production:
  • Design validation (DV), engineering validation (EVT), and manufacturing support
  • Root cause analysis (RCA) for field and production issues
• Drive adoption of advanced technologies and architectures in high‑performance systems
• Produce high‑quality documentation, including design specifications, simulation reports, and test reports
• Provide technical leadership and mentorship to junior engineers
• Hands‑on lab experience with measurement and debug tools:
  • Oscilloscopes, function generators, spectrum analyzers, network analyzers

Education & Experience

• Master’s or PhD degree in Electrical Engineering or a related field
• Minimum 5+ years of experience in analog or mixed‑signal circuit design (PhD graduates may qualify with less experience)
• Strong background in analog circuit fundamentals, with experience in:
  • Operational amplifiers and precision analog design
  • ADC/DAC interfacing and signal chain optimization
  • High‑speed and/or high‑voltage analog systems
• Experience in one or more of the following areas is highly desirable:
  • Low‑noise design (nV/√Hz level)
  • High‑linearity systems (>16‑bit ENOB)
  • Precision measurement systems
  • High‑frequency analog design (MHz range and beyond)
• Proficiency in circuit simulation tools:
  • LTspice, TINA, Cadence, ADS, or equivalent
• Programming skills for modeling and data analysis:
  • Python, MATLAB, or similar

Skills & Competencies

• Technical Expertise
  • Deep understanding of non‑ideal analog effects:
    • Noise, distortion, offset, drift, parasitics
  • Knowledge of signal integrity (SI) and power integrity (PI) principles
  • Strong system‑level thinking, able to optimize across full signal chains
  • Ability to balance physical limitations with system performance requirements
• Analytical & Problem‑Solving Skills
  • Strong root cause analysis and debugging capabilities
  • Ability to solve complex, cross‑domain engineering problems
  • Effective decision‑making under uncertainty
• Work Style & Ownership
  • Results‑driven with strong ownership and accountability
  • Capable of working effectively in high‑pressure, dynamic environments
  • Able to work both independently and collaboratively
• Communication Skills
  • Clear, concise, and professional technical communication
  • Ability to present complex technical concepts to both engineers and management
• Process Discipline
  • Familiarity with full product development lifecycle (design - validation - production)
  • Ability to work within structured processes and meet project timelines
• Tools
  • Proficient in Microsoft Office Suite (Word, Excel, PowerPoint)
  • Capable of producing high‑quality technical documentation and presentations

EEO Statement

We are an equal opportunity employer and do not discriminate on the basis of any protected characteristic in compliance with applicable laws.