Senior Battery Electrical Engineer

Gama Space; Ivry-sur-Seine; Sur place; EUR 90 000 - 120 000; Plein temps

Avantages offerts par ce poste

Equity package

Competitive compensation

Résumé du poste

Gama Space in Ivry-sur-Seine is seeking a Senior Battery Electrical Engineer to design the heart of a satellite power system, from cell selection to a flight-ready battery board and BMS.

You will own end-to-end battery systems, from high-current electronics to BMS software, with tests in our lab and qualifications for LEO environments. English required; space sector experience valued.

Qualifications

• MSc or equivalent in electrical engineering with 5+ years in battery systems or power electronics.
• Solid understanding of Li-ion cell behavior and pack design implications.
• Experience with BMS architectures: monitoring, balancing, protection.
• Strong high-current PCB design, sensing chains, and protections.
• Hands-on cell and battery testing with cyclers and thermal chambers.
• Autonomy in the lab with oscilloscopes and power analyzers.
• Strong analytical, proactive attitude and good interpersonal skills.
• Professional English; other languages welcome.

Responsabilités

• Design and bring up battery pack electronics for high-current applications.
• Define BMS architecture and hardware interfaces.
• Develop BMS software: SoC/SoH estimation and charging strategies.
• Plan and run test campaigns for cells, packs, and BMS.
• Select and qualify cells for LEO environment with qualification testing.

Connaissances

High-current PCB design

BMS architectures

State estimation

Cell testing

Power electronics

Lab autonomy

English proficiency

Formation

MSc in Electrical Engineering

Outils

Oscilloscopes

Power analyzers

Thermal chambers

Differential probes

Description du poste

Job description

To pursue our ambitious vision, we are looking for a Senior Battery Electrical Engineer. In this role, you will design the battery system at the heart of a satellite power system — from cell selection to a flight-ready battery board and its BMS.

Your mission will be to:

• Design and bring up the battery pack electronics: high-current board design, instrumentation, interconnects, wiring, and battery-side protections.
• Define the BMS architecture and design its hardware: monitoring, balancing and protection circuits, and interfaces with the power converter.
• Develop the BMS software functions: state estimation (SoC/SoH), balancing and protection logic, and battery charging strategies (CC/CV profiles, current/voltage limits over temperature and state of charge).
• Define and run test campaigns for cells, packs, and the BMS subsystem: cell screening and characterization, cycling and aging in the in-house cell testing laboratory, and functional validation of the BMS (protections, balancing, state estimation) on the battery board.
• Select and qualify cells and battery components for the LEO environment including battery cells supplier selection: qualification testing (thermal-vacuum, radiation), derating analysis, and incoming inspection.

Profile required

• Professional engineering education (MSc or equivalent) in electrical engineering / electronics, with 5+ years of hands-on experience in battery systems or power electronics.
• Solid understanding of Li-ion cell behavior from an electrical standpoint: electrical characteristics, aging mechanisms, safety, and their implications for pack design.
• Experience with BMS architectures: cell monitoring, balancing, and protection circuits.
• Strong electronics design skills: high-current PCB design (heavy copper, busbars, creepage/clearance), sensing chains, protections.
• Hands-on cell and battery testing experience: cyclers, thermal chambers, test protocol definition.
• Autonomy in the lab: oscilloscopes, differential/isolated probes, power analyzers, electronic loads.
• Strong analytical skills, a proactive attitude, excellent interpersonal skills and unbounded curiosity.
• You enjoy owning your scope end-to-end.
• Professional level English — further languages welcome.

Nice to have:

• Experience in space, automotive, aerospace, or other high-reliability industries.
• Programming skills for BMS function implementation (embedded C or similar): state estimation, protection logic, charging strategies.
• Familiarity with electrochemical characterization methods: ACIR/DCIR, EIS, RPT-based protocols.
• Familiarity with power conversion and battery charging strategies (CC/CV profiles).

Company description

Gama is a NewSpace startup based in Ivry-sur-Seine, near Paris. We are developing a next-generation power system for commercial LEO satellites — from solar array power conversion to battery energy storage. We design, build, and test our hardware in-house, and we move fast: our engineers see their designs go from schematic to flight hardware.

We are a small team where ownership matters: you own your subsystem end-to-end, from first calculations to test results. We work hands‑on, we help each other without ego, and we treat mistakes as data — finding out why something failed is how we get better.

We offer:

• Your work will fly. Contribute directly to the future of space exploration and Sustainable Space.
• Access to cutting-edge facilities and development opportunities in the heart of the European space industry.
• A steep personal development path, working alongside world class aerospace engineers.
• Equity package and competitive compensation.
• A highly talented, dynamic and international team.

You do not need to meet every requirement to apply. If this role excites you and you meet many, but not all, of the criteria, we would be glad to hear from you. We value potential and support growth into the role.