Engineering Manager - Analog Electronics at Flux

London, England, United Kingdom

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£162,000 – £198,000Compensation

Senior (5 to 8 years)Experience Level

Full TimeJob Type

UnknownVisa

Semiconductors, Optoelectronics, HardwareIndustries

Requirements

7+ years of experience in mechanical design and simulation, ideally within opto-mechanical systems, electronics enclosures, or advanced materials applications
Proven expertise in substrate stack-up design — understanding of material interactions, thermal mismatch, and mechanical coupling
Demonstrated proficiency in FEA and thermo-mechanical modeling for complex 3D structures
Experience performing ageing simulations to assess creep, fatigue, and time-dependent material behavior
Strong understanding of material properties — including CTE, elastic modulus, Poisson’s ratio, and thermal conductivity — and their impact on performance and reliability
Proficiency in SolidWorks for mechanical modeling and ANSYS, Abaqus, or COMSOL for multiphysics simulation
Experience with warpage mitigation, thermal management, and assembly-level stress analysis
Familiarity with DFM/DFR principles, reliability testing, and integration process constraints
Strong analytical, problem-solving, and communication skills with the ability to translate simulation data into design improvements
Bachelor’s degree in Mechanical Engineering, Materials Science, or related field; Master’s or PhD preferred

Responsibilities

Design and develop mechanical assemblies such as substrates for high-performance optical and computing systems
Define and optimize substrate stack-ups, balancing mechanical stability, warpage control, thermal dissipation, and integration requirements
Conduct finite element analyses (FEA) to evaluate stress, strain, warpage
Execute thermo-mechanical simulations to assess material deformation, stress evolution, and structural response under varying loads and temperatures, including effects during assembly, solder reflow, and system-level integration
Perform ageing and life-cycle simulations to model long-term material degradation, creep, fatigue, and stress relaxation over extended operational lifetimes
Lead material selection and evaluation to meet mechanical, thermal, and reliability needs — balancing CTE compatibility, stiffness, and thermal conductivity with manufacturability and cost
Apply expertise in substrate materials (ABF, BT, ceramics, and organics) to achieve optimized mechanical and thermal performance
Develop and correlate simulation models with empirical testing (e.g., thermal cycling, vibration, and temperature–humidity bias) to validate predictions and improve design accuracy
Collaborate across disciplines to co-optimize substrate stack-ups, thermal interfaces, and mechanical assemblies for stability and manufacturability
Interface with vendors and manufacturing partners to define mechanical specifications, tolerances, and material standards
Automate and standardize simulation workflows using ANSYS, Abaqus, or COMSOL, ensuring consistency and efficiency
Document simulation methodologies, assumptions, and recommendations for design iteration and technical communication

Skills

FEA

Finite Element Analysis

Mechanical Design

Substrate Stack-up

Thermo-mechanical Simulation

Warpage Control

Thermal Dissipation

Stress Analysis

Strain Analysis

Material Selection

CTE Compatibility

ABF

Ceramics

Creep

Fatigue

Flux

AI-powered platform for PCB design

About Flux

Flux.ai provides a platform for designing and building printed circuit boards (PCBs) within the electronic design automation (EDA) market. The platform features an AI-powered assistant named Copilot, which helps users streamline the PCB design process, making it more efficient. Users can sign up for free and access basic features, with the option to upgrade to premium subscription plans for additional services. This freemium model allows engineers, designers, and electronics enthusiasts to engage with the platform at their own pace. Flux.ai differentiates itself from competitors by integrating AI assistance directly into the design workflow, enhancing user experience and accessibility in PCB design.

San Francisco, CaliforniaHeadquarters

2019Year Founded

$11.7MTotal Funding

EARLY_VCCompany Stage

Hardware, Consumer Software, AI & Machine LearningIndustries

51-200Employees

Benefits

Remote Work Options

Risks

Over-reliance on AI designs may lead to quality control issues and vulnerabilities.

New features like Smart Vias may increase complexity, potentially confusing users.

Intense competition from GenAI tools like SnapMagic could divert users from Flux.

Differentiation

Flux offers the first AI-powered hardware design assistant integrated into a PCB tool.

Flux's Copilot provides personalized design recommendations, enhancing user experience and efficiency.

Smart Vias technology simplifies high-density PCB designs, setting Flux apart from competitors.

Upsides

Increased adoption of AI tools boosts demand for Flux's innovative design platform.

Remote work trends align with Flux's cloud-based SaaS model, enhancing collaboration.

Generative AI advancements create opportunities for Flux to lead in hardware design.

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