Hiring.Camp

Mechanical Hardware Engineer

Seeing Systems

·

Jul 9, 2026

Salary
$30k – $45k/yr
Location
London, England, GB
Type
Full-time
Department
Engineering
Experience
2+ years
Source
Y Combinator

Description

About Us

"Seeing Systems is building autonomous drone systems that can perceive, navigate, and act intelligently in complex real-world environments."

We're advancing autonomy through monocular vision, sensor fusion, and robust system design - drones that keep working where traditional systems fail, supported by an agentic stack that reduces operator cognitive load.

Our first product is an FPV-class drone built from the ground up with a modular hardware architecture. If we get the first platform right, we can move fast on everything else: larger airframes, longer range, new payloads, and new mission profiles without rebuilding the stack each time.

We were founded by brothers Matthew and Alexander Le Maitre. Matthew is a former Jane Street engineer and Cambridge CS graduate with a background in autonomous systems research. Alexander is a self-taught hardware engineer who has been building unmanned systems and military-grade electronics.

We're an early-stage, fast-moving team working at the intersection of robotics, perception, and real-world deployment. We iterate weekly. We test in real environments.


The Role

You will design, build, and test the physical systems around our electronics as a core member of our growing hardware team.

That means hands-on mechanical engineering work across our aircraft and ground stations: airframes, enclosures, mounts, thermal solutions, payload integration, and packaging. You'll take ownership of defined subsystems and see them through from CAD model to a validated part on a flying aircraft.

You'll report to our Founding Hardware Engineer and work closely with Alex, our co-founder and hardware lead. This is a role for an engineer early in their career who wants to grow fast: you'll be given real responsibility, real deadlines, and real feedback from the field, with senior engineers beside you at the bench.

Within 30 days: you've designed, prototyped, and fitted a part flying on one of our platforms and joined a field test. Within 90 days: you've taken a mechanical subsystem from CAD through prototyping to a validated revision flying on one of our drones.


What You'll Do

  • Design mechanical parts and assemblies for defined subsystems under the direction of the Founding Hardware Engineer: airframe components, enclosures, mounts, payload interfaces, and ground station hardware.
  • Own prototyping and iteration for your subsystems: 3D printing, CNC and sheet-metal parts, fit checks, and rework through fast design cycles.
  • Design for the environment: vibration, shock, thermal management, ingress protection, and weight targets on flying platforms.
  • Integrate electronics into airframes: packaging, cable routing, connector placement, and serviceability, working closely with the electrical team.
  • Build and maintain aircraft: assembly, repairs, and configuration control across our test fleet.
  • Run test campaigns with our testing lead: prepare aircraft, capture data, log failures, and feed findings back into the next revision.
  • Work with manufacturers on quotes, DFM feedback, tolerances, and incoming inspection as we scale production.
  • Use AI tools to accelerate design, analysis, and documentation.

What We're Looking For

  • Minimum 2 years of hands-on mechanical engineering experience (professional, or a genuinely equivalent portfolio of shipped personal projects).
  • Strong CAD skills in SolidWorks, Fusion 360, or similar - you've taken at least one part from model to manufactured, working hardware.
  • Solid grounding in materials, fastening, tolerancing, and design for manufacture.
  • Confident in the workshop: 3D printers, hand tools, and methodical fault-finding on physical assemblies.
  • Comfortable with the gap between "works on the bench" and "works at range in the field."
  • Bias toward shipping.
  • Comfortable getting outside and testing in the real world with us

Nice to Have

  • Defence, aerospace, or UAV industry experience.
  • Personal experience building and flying drones, robots, or other unmanned systems.
  • Composites experience (carbon fibre layup, moulding, or repair).
  • FEA or thermal simulation experience.
  • Experience with injection moulding or other volume manufacturing processes.
  • Basic electronics literacy (soldering, harnessing, reading schematics).
  • Early-stage startup experience.

Why Join

  • Real ownership of subsystems from day one, with senior engineers invested in your growth.
  • Fast iteration: hardware in operators' hands in months, not years.
  • Small, high-agency team with a direct line from idea to field test.
  • Real deployment pressure, real feedback, real learning.
  • A clear path to grow into broader hardware ownership as the team scales.
  • Snack of choice stocked in the workshop.

Skills

SolidWorksCNCPrototyping

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