As a Battery Pack Architect, you are responsible for defining the overall system architecture and ensuring the technical coherence and performance of the batter...
As a Battery Pack Architect, you are responsible for defining the overall system architecture and ensuring the technical coherence and performance of the battery pack. You drive key design decisions by balancing electrochemical, electrical, thermal, mechanical, and safety constraints to deliver a solution that is safe, high-performing, manufacturable, and cost-effective.
You act as a cross-functional technical leader and the main guarantor of the system-level vision.
As BMS developer, you are the technical owner of the Battery Management System for battery packs. You will be responsible for defining, challenging, and validating a BMS solution developed with an external supplier, while ensuring its performance, safety, and system integration.
You guarantee that the delivered BMS meets all requirements through independent verification and deep system understanding.
ABOUT US
Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M
Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to
allied forces.
Our work is guided by clear values: building technologies with real-world impact, pursuing excellence in everything we do, setting
ambitious goals, and taking on the hardest technical challenges. We operate in a demanding environment where rigor, ownership, and
execution are expected.
ABOUT THE ROLE
We are looking for a UAV Battery Engineer to join our Hardware (Elec Team). This role is critical to owning the energy storage
systems that power our UAV platforms. Our drones demand high energy density, reliability, and uncompromising safety under dynamic
loads — and we need a dedicated expert to architect, test, and deliver battery systems from cell selection through to
production-ready packs.
You will take end-to-end ownership of the UAV battery architecture, working hands-on with cells, BMS hardware, and thermal systems
every day. This is a high-autonomy role where your decisions on cell chemistry, supplier selection, and safety protocols will
directly shape the performance and reliability of our platforms.
RESPONSIBILITIES
Battery Architecture & Cell Selection: Evaluate and qualify battery cell suppliers based on energy density, cycle life, cost, and
safety performance. Define pack configuration and cell architecture for UAV platforms.
Battery Safety & Thermal Management: Lead the design of battery safety protocols, including thermal runaway mitigation and
propagation resistance strategies. Conduct hazard analyses (DFMEA) and ensure compliance with standards such as UN38.3 and UL.
BMS Design & Integration: Own the Battery Management System architecture and algorithms, including State of Charge (SoC) and State
of Health (SoH) estimation, cell balancing, and protection logic for highly dynamic load environments.
Testing & Validation: Perform hands-on testing of cells using cyclers and thermal chambers. Develop validation plans covering
abuse scenarios such as overcharge, short circuit, and mechanical drop conditions. Analyse BMS log data and simulate thermal
behaviour.
Supplier Management: Manage relationships with cell suppliers, covering technical specifications, quality control, and roadmaps.
Build a reliable and scalable supplier pipeline.
Cross-Team Collaboration: Work closely with Mechanical Design on battery packaging constraints, Firmware on BMS parameters and
algorithms, and external manufacturing partners.
CANDIDATE REQUIREMENTS
Educational Background: Bachelor's or Master's degree in Electrical Engineering, Mechanical Engineering, Materials Science,
Chemical Engineering, or a closely related field.
Technical Expertise: Proven track record of taking battery systems from concept to production in high-performance robotics,
aerospace, or UAV applications. Hands-on experience with cell characterisation, BMS architecture, and thermal management.
Familiarity with safety compliance standards (e.g., UN38.3, UL).
Core Competencies: Cell selection and testing, supplier management and qualification, battery safety (thermal runaway mitigation),
BMS architecture, pack packaging and integration, and regulatory compliance.
Ideal Background: Experience at drone manufacturers (e.g., DJI, Skydio, Anduril), EV companies (e.g., Rivian, Tesla), or advanced
robotics and electrification organizations.
Attributes: Analytical, safety-conscious, data-driven, and highly structured. Strong communication skills, particularly for
supplier negotiation and cross-functional collaboration.
Commitment: 100% dedication to Harmattan AI's mission, vision, and ambitious growth plans, ready to go the extra mile to ensure
operational excellence.
We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.
As a Senior Battery Pack System Simulation Engineer, you are responsible for developing and maintaining system-level battery pack models to support battery pack development across all applications, including automotive.
You build and integrate surrogate/reduced-order models in close collaboration with the CAE engineers covering electrical, electrochemical, thermal, mechanical, durability, control, safety, and optimization aspects of battery pack systems.
You own your surrogate/equivalent-circuit/reduced-order model requirements and the associated parameter identification and validation workflows, in close collaboration with the CAE engineers and with support from BMS, testing, and validation engineers.
You provide simulation-based insight to support architecture trade-offs, control development, performance prediction, lifetime assessment, and safety-oriented engineering decisions.
This role is part of the CAE & Advanced Methods Group and supports the Battery Pack and System Group with system-level simulation evidence for pack architecture justification, optimization, root-cause analysis, and with control-oriented simulations for BMS/BTMS calibration, validation, robustness and verification.
