Battery Systems Engineer

Fortescue Metals Group; Kidlington; Hybrid; GBP 60,000 - 90,000; Full time

Benefits offered by this job

Pension

Life assurance

Income protection

Electric car

Health plan

Employee assistance

Private medical insurance

Annual leave 26 days

On-site gym

Job summary

Fortescue Zero is seeking a Battery Systems Engineer to join Elysia, Fortescue Zero's battery intelligence business. You’ll own customer workstreams, combine battery insight with data science, and communicate findings to clients to turn complex evidence into actionable recommendations.

Working across cloud analytics and embedded BMS, you’ll help improve battery safety, reliability and lifespan for automotive, energy storage and mining applications. Hybrid, full-time role based in the UK.

Qualifications

• Background in battery systems, diagnostics, degradation or related field
• Experience applying data, models, metrics in an engineering or customer-facing setting
• Practical experience with Python or analytical programming
• Ability to interpret evidence and communicate conclusions clearly
• Experience coordinating work across Engineers and Data Scientists

Responsibilities

• Own customer workstreams and act as day-to-day technical contact
• Understand customer problems, context and decisions; plan delivery with Data Scientists
• Work with customer datasets using Python to explore data and test assumptions
• Review code, methods, metrics and model outputs; run further analysis or simulations
• Connect battery metrics to degradation, failure modes and operating conditions; explain confidence and next steps
• Keep work organized and share recurring needs with Product and Development

Skills

Battery systems

Diagnostics

Degradation

Battery analytics

BMS

Modelling

Electrochemistry

Python programming

Data science exposure

Customer-facing experience

Education

STEM degree or equivalent

Tools

Python

Telemetry platforms

Job description

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Location: Kidlington
Working pattern: Full-time, hybrid, 40 hours per week
Contract: Permanent

THE POWER OF NOW

Fortescue Zero develops, tests and deploys technology to help decarbonise industry. As Fortescue Zero's green technology and engineering business, it works across areas including power systems, motorsport, battery intelligence and autonomous fleet solutions.

We're looking for aBattery Systems Engineerto join Elysia, Fortescue Zero's battery intelligence business. You'll lead the technical delivery of customer workstreams, combining battery insight, hands-on analysis and clear customer communication to help turn complex evidence into practical recommendations.

Elysia develops battery software and analytics to help improve the safety, reliability, performance and lifespan of battery systems. Its solutions combine expertise in electrochemistry, battery systems and data science, and are used in applications including automotive, energy storage and heavy industry.

Working across cloud-based analytics and embedded battery management systems, Elysia helps customers better understand and manage their battery assets. Its work draws on more than a decade of battery expertise and experience shaped by high-performance electric vehicles and real-world operating environments.

How we work

At Fortescue Zero, we push the boundaries of engineering to develop technology for real-world challenges, from motorsport to mining. At Elysia, we bring together expertise in battery systems, electrochemistry and data science to develop battery intelligence solutions. Fortescue is committed to an inclusive workplace where people are supported to bring their perspectives and do their best work.

What you’ll do

In this role, you will:

• Own a small number of customer workstreams and act as the day-to-day technical contact
• Understand customer problems, operating context and the decisions the analysis needs to support; plan delivery and coordinate Data Scientists with the right context
• Work directly with customer datasets and use Python to explore data, test assumptions and investigate technical questions
• Review code, methods, metrics and model outputs; carry out further analysis or simulation when needed
• Connect battery metrics to degradation, failure modes and operating conditions, then explain confidence, limitations and practical next steps
• Keep work organised and traceable, and share recurring needs with Product and Development

What you’ll bring

You’ll bring a strong technical foundation and the judgement to connect analysis with customer needs. You’ll also have:

• A background in battery systems, diagnostics, degradation, battery analytics, BMS, modelling, electrochemistry, simulation or a related technical discipline
• Experience applying technical data, models, algorithms, metrics or analytical outputs in an applied engineering or customer-facing setting
• Practical experience with Python or equivalent analytical programming, including writing, adapting or reviewing analysis code
• Ability to interpret evidence and explain conclusions, assumptions, uncertainty and limitations clearly
• Experience coordinating work across engineers, analysts or Data Scientists, and working with customers or external technical stakeholders
• A relevant STEM degree or equivalent technical experience
• Knowledge of lithium-ion degradation, battery ageing, state estimation, anomaly detection, remaining useful life prediction or battery safety
• Experience with battery fleets, telematics, cloud analytics, predictive maintenance, condition monitoring or field performance
• Experience with simulation, sensitivity analysis, hypothesis testing or large operational datasets
• Familiarity with FMEA, fault tree analysis, root cause analysis or reliability engineering
• Experience in automotive, energy storage, mining, motorsport, aerospace or other complex engineering environments

About you

You're interested in pioneering technology and its potential to support a more sustainable future. You're motivated by the opportunity to contribute to work with real-world impact and help advance battery intelligence.

Benefits include, subject to eligibility and scheme rules:

• Aviva workplace pension
• Group life assurance
• Group income protection
• Electric car scheme
• Health cash plan
• Employee assistance programme
• Private medical insurance
• 26 days' annual leave, plus public holidays, with the option to purchase up to 5 additional days per year
• Free on-site gym access and discounted national gym memberships

Additional information

Fortescue Zero welcomes applicants with a range of backgrounds, experiences and skills, and is committed to an inclusive recruitment process.

If you need reasonable adjustments at any stage of recruitment, please contact [e-mail].

Appointment may be subject to pre-employment checks relevant to the role. We will explain any required checks during the recruitment process.