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About the Role

Join MZT at a pivotal moment as we transition from an early-stage R&D startup to a revenue-generating company ready to scale our direct-air capture technology globally. We're looking for an Electrochemical Stack Engineer to develop our next generation of stack designs. As our Electrochemical Stack Engineer you'll lead stack development at MZT. You'll define the opportunity areas for our next-generation stack, develop concepts that attack the biggest resistance losses in the cell, while ensuring stability and robustness, and lead the build–test–evaluate cycles that prove (or kill) them. For winning concepts, you'll scale them into full-size stacks, navigating supply chain and manufacturing constraints along the way. The role has two sides. You'll lead on the stacks we procure, assessing what the supply chain offers, judging their suitability for our process and specifying modifications where needed. In parallel, you'll lead the development of DAC-optimised electrodialytic stacks designed around our process conditions from the start. On both fronts you'll work closely with our process, mechanical and electrical engineers so that the stack meets the requirements of our DAC technology and the wider plant design. Reporting to the R&D leadership team, you'll work alongside key members of the R&D lab, and mentor junior scientists and engineers as the team grows.

Responsibilities

Defining the opportunity areas for MZT's next-generation electrochemical stack: quantifying where the losses sit and which are worth attacking first
Developing concepts for performance improvement across cell geometry, materials and flow design, backed by models and analysis that clarify your predictions
Leading build–test–evaluate cycles with the R&D team: designing testing campaigns, characterising stack performance and tracing observed phenomena back to underlying mechanisms and design features
Scaling successful concepts into full-scale stacks, working through fabrication, assembly and design-for-manufacture constraints
Leading stack procurement: assessing commercially available stacks, specifying modifications and managing technical relationships with vendors and manufacturers
Articulating stack requirements to process, mechanical, electrical and safety engineers so the stack and the wider plant design converge
Closing the feedback loop: internalising learnings from every campaign and applying them to subsequent stack designs
Mentoring, guiding and supporting junior staff, helping them acquire new skills, knowledge and capabilities

Requirements

A deep grounding in the theory and mathematical principles that describe electrochemical processes. You understand electrochemistry from first principles, not just by analogy or heuristics
Experience designing electrochemical stacks at multiple scales involving aqueous electrolytes, ion-exchange membranes and gas generation
A strong grasp of how the culmination of geometric features, material selection and process parameters determines the critical performance parameters of a stack
A track record of taking designs through to fabricated, assembled hardware in collaboration with mechanical, electrical and process engineers
Significant experience designing and executing testing campaigns, with the diagnostic instinct to trace behaviour back to root mechanisms
The habit of reducing problems to first principles and building models to sharpen your thinking, paired with the judgement to reach for heuristics when they're the better tool
Equal appetite for ideation and execution: you can get obsessed with a problem, and you finish what you start
As comfortable in the lab or workshop as you are developing designs, models and analysis
Experience mentoring, guiding or supervising junior colleagues
A degree in chemical engineering, electrochemical engineering, materials science or a related discipline
Roughly 5–10 years' experience spanning stack design, testing and scale-up
Clear communication skills across engineering disciplines
Direct experience with electrodialysis, bipolar membranes or related ion-exchange membrane processes
Hands-on experience with carbonate or alkaline electrolytes, and with managing gas evolution and two-phase flow inside cells
Electrochemical or multiphysics modelling experience (COMSOL or equivalent, or your own codes)
Experience with EIS and other advanced electrochemical diagnostics
Working CAD skills, enough to take your own concepts from sketch to drawing
Experience working directly with stack, membrane or component manufacturers, and navigating their manufacturing constraints
A PhD in electrochemistry, electrochemical engineering or a related field
Experience in a startup or similarly fast-moving R&D environment
Patents or publications in electrochemical cell or stack design

Skills

Electrochemical Stack Design
Electrodialysis
Direct Air Capture (DAC)
Process Engineering
Mechanical Engineering
Electrical Engineering
Modeling and Analysis
Testing Campaign Design
Performance Characterization
Fabrication and Assembly
Design for Manufacture
Supply Chain Assessment
Vendor Management
Mentoring
First Principles Thinking
Heuristics
Ideation
Execution
Lab Work
Workshop Skills
Communication Skills
Electrodialysis
Bipolar Membranes
Ion-Exchange Membrane Processes
Carbonate Electrolytes
Alkaline Electrolytes
Gas Evolution Management
Two-Phase Flow
Electrochemical Modeling
Multiphysics Modeling
COMSOL
EIS Diagnostics
Advanced Electrochemical Diagnostics
CAD
Manufacturing Constraints Navigation
Startup Environment Experience
R&D Environment Experience
Patent Filing
Publication Writing

Location

London

Work Type

Full-time
Onsite

Experience Level

5-10 years
PhD preferred
Startup experience preferred

Education Level

Degree in chemical engineering, electrochemical engineering, materials science or a related discipline
PhD in electrochemistry, electrochemical engineering or a related field

Benefits

30 days of Annual Leave
3 months enhanced Paternity/Maternity Leave
Access to wellness and medical cover
Employee Share Options Scheme
Christmas holidays office closure
Cycle to work scheme

About the Company

MZT is transitioning from an early-stage R&D startup to a revenue-generating company ready to scale its direct-air capture technology globally.
At Mission Zero, we value diversity of cultural backgrounds, experience, and perspectives, and leverage these qualities to create exceptional outcomes.

Equal Opportunity

Dedicated to equal employment opportunities regardless of race, sex, religion or belief, ethnic or national origin, age, disability, citizenship, marital, domestic or civil partnership status, sexual orientation, gender identity, pregnancy or related condition, or any other basis as protected by applicable law.
Please do not hesitate to let us know if you have a disability or additional need that requires accommodation.