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

As a Mechanical Engineer on Harmattan AI's R&D Hardware Tooling team, you will design and build the internal lab fixtures, jigs,

rigs, and bench structures that help our engineering teams develop and validate products faster. You will own the mechanical side

of tooling end-to-end: from bench and lab fixtures to environmental validation rigs, instrument enclosures, and RF/antenna

characterisation mechanics. Unlike product design optimised for mass production, tooling mechanics here prioritise precision,

repeatability over many cycles, and fast in-house fabrication. You will work at the intersection of mechanics, electronics, and

development across every Harmattan hardware program.

TECHNICAL SKILLS

RESPONSIBILITIES

Design fixtures, jigs, enclosures, and bench structures in SolidWorks with full integration of electronics and instrumentation,

maintaining complete 2D drawings with GD&T to guarantee fixture precision and repeatability.

Design clamping, alignment, and actuation mechanisms — manual and pneumatic — for repeatable, ergonomic positioning of

prototypes during bring-up and characterisation.

Build fixtures rapidly in-house (3D printing, CNC, aluminium framing) and via quick-turn suppliers; iterate fast based on

hands-on validation with the tooling hardware and software engineers.

Own the development of bench and lab fixtures, environmental and reliability validation rigs, instrument/DAQ enclosures,

RF/antenna characterisation mechanics, and modular bench structures for the R&D teams.

Validate fixture repeatability, durability over many cycles, and operator ergonomics; use basic FEA and thermal/CFD where

required (e.g. environmental rigs) to confirm designs.

Manage quick-turn machining and printing suppliers; specify framing hardware and drive procurement with Supply Chain.

Define and maintain a modular, reusable fixture-mechanics standard across product teams, directly reducing bring-up time and

improving characterisation repeatability.

Maintain fixture designs, drawings, build instructions, and maintenance records as the single source of truth for the team.

CANDIDATE REQUIREMENTS

Engineering degree in Mechanical Engineering, Mechatronics, Consumer Electronics, or equivalent.

Proven experience designing lab or development fixtures, jigs, or rigs — or a track record of shipping physical products with a

desire to build the tools behind them.

Proficiency in SolidWorks, including complex assembly modelling and 2D drawings with GD&T.

Hands-on experience with rapid prototyping and in-house fabrication (3D printing, CNC, off-the-shelf framing systems).

Ability to integrate electronics and instrumentation into fixtures and enclosures with reliable measurement access.

Strong instinct for tolerancing, repeatability, and fixture accuracy; comfortable working to tight positional constraints.

Experience with mechanism and actuation design (clamping, alignment, pneumatic) is a strong plus.

Basic FEA and thermal/CFD to validate designs is a nice-to-have.

Appetite for ownership and fast iteration — a maker who gets hands dirty, works independently, and thrives in a small team

without heavy process.

We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.

Role

Mechanical Engineer (Hardware Tooling)

Locations

Paris

Published

July 9

Deadline

August 16

Tags for this job

Similar Jobs

Software Engineer (R&D Hardware Tooling)

Harmattan AI

Paris•Posted: Jun 23•Deadline: Aug 16

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 As Harmattan AI parallelly scales several complex hardware programs—including ruggedized drone controllers, long-range RF systems, field-deployable launchers, and the UAVs themselves—we are establishing a dedicated R&D Hardware Tooling team. This team is responsible for building internal tools that live in the lab and within engineering workflows, enabling product teams to design, bring up, characterize, and validate hardware faster and with absolute confidence. In this role, you will own the software and embedded layers of this tooling end-to-end. This is a high-impact, fast-iteration position where your tools directly dictate development velocity. Furthermore, as one of the initial hires, there is a clear path to grow into a Team Lead role based on experience and performance. RESPONSIBILITIES * Tooling Software Architecture: Design reusable, modular automation and analysis frameworks (typically Python-based) utilized across all product programs. * Instrument & Fixture Control: Integrate bench instruments and custom fixtures using SCPI/VISA, serial, USB, GPIB, and Ethernet, abstracting device drivers for team-wide reuse. * Embedded Fixture Firmware: Write and maintain robust firmware (bare-metal and/or RTOS) for MCU-based development and validation fixtures handling I/O, signal generation, and measurement. * Hardware-in-the-Loop (HIL): Build HIL and development rigs, integrating them seamlessly into CI pipelines for automated firmware regression tracking. * Data Acquisition & Analysis: Capture, store, and surface critical measurement data via databases, dashboards, and analysis scripts to enable data-driven design decisions. * Bring-up & Debug Support: Build specialized bring-up scripts and debug utilities to support product engineering teams directly at the bench. * Protocol Implementation: Implement and debug hardware communication interfaces including SPI, I2C, UART, USB, CAN, and RF/link interfaces. * Cross-Functional Collaboration: Partner daily with tooling hardware and mechanical engineers to define fixture interfaces and support rig bring-up, while translating product team needs into reliable tooling. * Documentation: Maintain comprehensive architecture documents, validation procedures, and usage guides. CANDIDATE REQUIREMENTS Educational Background * Master’s degree in Electrical Engineering, Computer Engineering, Embedded Systems, Computer Science, or an equivalent technical field. Core Technical Competencies & Experience * Proven Test & Automation Experience: Demonstrated success building bench automation, HIL/development rigs, or characterization tooling for real physical hardware. * Software & Automation Skills: Strong proficiency in Python automation (using pytest or equivalent frameworks) and instrument control via SCPI/VISA. * Embedded Firmware: Confident writing embedded C/C++ on microcontrollers (typically ARM Cortex-M), spanning both bare-metal environments and RTOS architectures (e.g., FreeRTOS, Zephyr). * Hardware Debugging: Hands-on experience with hardware bring-up and bench debugging tools such as oscilloscopes, logic analyzers, and JTAG/SWD interfaces. * Protocols & Infrastructure: Solid understanding of communication buses (SPI, I2C, UART, USB, CAN) alongside version control and CI pipelines. Professional Attributes & Mindset * Rigorous & Systems-Minded: Possesses a disciplined approach to measurement integrity, clean code, and understanding both the firmware under development and the instruments measuring it. * Autonomous & Pragmatic: Capable of independently driving software architecture decisions while balancing robustness with rapid project execution. * Adaptability & Execution: Thrives in a fast-paced, dynamic environment, bringing a "no-task-is-too-small" mentality to a lean engineering team. * Strong Communication & Collaboration: Exceptional written and verbal communication skills; able to work seamlessly across hardware, mechanical, and product software domains without friction. Desirable Pluses * Experience within drone/UAV development, RF/radio systems, or telecommunications hardware. * Prior experience deploying CI-integrated HIL testing systems. * Experience working in ruggedized, military, or industrial-grade hardware environments. We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.

PythonAI

Mechanical Engineer - GCS

Harmattan AI

Paris•Posted: Jul 10•Deadline: Aug 16

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. As a Mechanical Engineer on Harmattan AI's Ground Control Systems (GCS) team, you will own the mechanical design of next-generation GCS hardware from concept through mass production. This may include a premium drone controller for ISR missions, a long-range antenna system for multiple drone vectors, or an interceptor drone launcher box. You will work at the intersection of mechanical design, RF integration, and electronics packaging to deliver field-ready, defense-grade products. Responsibilities * End-to-End Design: Design and prototype drone controllers, antenna systems, and launcher enclosures from scratch—covering structural architecture, ergonomics, thermal management, and high environmental/waterproofing (IP rating) constraints. * Product Development: Own full product development cycles end-to-end, translating operator needs into rugged, field-ready designs. * CAD Modelling & GD&T: 3D model in SolidWorks, including complex surface modelling, and produce detailed 2D drawings with GD&T to meet strict functional and assembly requirements. * DFM/DFA: Apply DFM/DFA principles systematically to minimise unit cost and assembly time at scale, collaborating closely with suppliers specialising in plastic injection molding, large-scale thermoforming, sheet metal/structural steel fabrication, CNC, and die-casting. * Simulation: Run FEA (stress, deformation) and thermal simulations (CFD/steady-state) to validate design choices early and reduce physical prototype cycles. * Testing & Validation: Conduct mechanical stress, failure analysis, and environmental testing to validate designs for extreme field conditions. * Cross-Functional Collaboration: Collaborate daily with the Electronics and RF teams on PCB integration, internal routing, and RF constraints. * Supply Chain Partnership: Partner with Supply Chain & Procurement on supplier qualification, cost targets, and the smooth transition from prototyping to mass production. * Documentation: Maintain detailed documentation of designs, test results, and production workflows to support knowledge sharing and continuous improvement. Candidate Requirements * Education: Engineering degree in Mechanical Engineering, Mechatronics, Aerospace Engineering, or equivalent. * Experience: At least one full product development cycle taken from concept to mass production. * Manufacturing Expertise: Plastic injection molding experience with full DFM process and quality control; familiarity with CNC and die-cast molding. * Experience with sheet metal fabrication, heavy metallic structures and large-scale thermoforming is highly desirable. * CAD Proficiency: Advanced proficiency in SolidWorks, including complex surface modelling and 2D drawings with GD&T. * Prototyping & Integration: Hands-on rapid prototyping experience (3D printing, CNC, etc.) and a proven track record of integrating embedded electronics into complex enclosures. Nice to have: * Basic FEA (stress, deformation) and thermal simulation (steady-state, CFD) experience. * Understanding of mechanical linkages and actuator/cylinder kinematics for deployment or launching mechanisms. * Experience in defense, aerospace, UAVs, or high-end consumer electronics hardware. We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.

Embedded Software Engineer - Launcher

Harmattan AI

Paris•Posted: Jun 30•Deadline: Aug 16

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 As an Embedded Software Engineer on the Launcher team, you will take full ownership of the firmware architecture for our next-generation hardware products, including field-deployable launchers, ruggedized drone controllers, and long-range RF systems. Operating in resource-constrained MCU environments, you will work hand-in-hand with hardware and mechanical engineers to take products from initial board bring-up all the way through to production-ready field deployment. This role offers a fast-paced environment with high autonomy, no heavy bureaucracy, and a direct, fast feedback loop between design and real-world deployment. Responsibilities * Firmware Architecture & Design: Design robust firmware architecture for mixed real-time and control workloads on MCUs using both bare-metal and RTOS environments. Define toolchains and coding standards across multiple products. * Driver & Protocol Development: Write and maintain low-level drivers for peripherals, sensors, RF modules, and power-management ICs. Implement and debug communication protocols including SPI, I2C, UART, USB, CAN, and RF link protocols. * Real-Time Control: Implement deterministic real-time control loops and manage interrupts, timing, and scheduling. * Hardware Bring-up & Debugging: Partner daily with the hardware engineer on board bring-up. Debug systems using oscilloscopes, logic analyzers, and JTAG/SWD debuggers, writing custom bring-up and test scripts when needed. * Production Maturity & Testing: Own the prototype-to-production firmware maturity path. Build unit tests, hardware-in-the-loop (HITL) testing, and automated test benches to meet test coverage and reliability targets. * Lifecycle & Security: Develop secure bootloaders and robust, reliable over-the-air (OTA) firmware update mechanisms for assets deployed in harsh environments. * Cross-Functional Collaboration: Align with Mission Application Developers on telemetry, command, and control interface requirements , and collaborate with Mechanical Engineers on integration, thermal regulation, and shielding constraints. Requirements * Education: Master’s degree in Electrical/Computer Engineering, Embedded Systems, Computer Science, or an equivalent technical field. * Experience: 2 to 10+ years of experience (Junior to Senior levels) in embedded software development. * Production Track Record: Proven experience taking at least one complete embedded product from initial prototype to mass production. * Core Technical Skills: Proficient in Embedded C/C++ with strong foundations in bare-metal and RTOS development (e.g., FreeRTOS, Zephyr, or equivalent) on MCUs, typically ARM Cortex-M. * Hardware & Protocols: Deep understanding of MCU peripherals, communication buses (SPI, I2C, UART, USB, CAN), and hands-on laboratory debugging equipment (oscilloscopes, logic analyzers, JTAG/SWD). * Software Practices: Strong discipline in version control, CI/CD pipelines, and automated firmware test methodologies. * Mindset: A rigorous, autonomous, and pragmatic professional who balances clean code and thorough validation with delivery speed. Bonus Points * Experience developing drone, UAV, remote control, or radio communication firmware. * Experience designing RF link or wireless protocol firmware. * Background working with ruggedized, military, or industrial-grade systems. * Professional familiarity with Rust. We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.

AIRustCI/CD