Invenirex - Hardware Engineer – Bioinstrumentation & Optical Systems

Job Title:

Hardware Engineer – Bioinstrumentation & Optical Systems

Category:

Technical roles

Closing Date:

10/08/2025

Location: Newcastle Upon Tyne (On-site)
Company: Invenirex Ltd
Salary: £38,796 | Contract: Fixed Term Contract until 31/08/2026

About Invenirex

Invenirex is a Deeptech life sciences company developing radically new hardware for advanced molecular diagnostics. Backed by venture capital and significant UKRI support, we're building transformative technologies that:

• Digitally count single DNA/RNA molecules using femtoliter-nanoliter microfluidics, fluorescence, and AI.

• Continuously image and analyse lipid nanoparticles (LNPs) using real-time, super-resolved optical techniques.

We’re now hiring a Hardware Engineer to help deliver key hardware systems across both platforms.

The Role 

This is a hands-on engineering role. You’ll be building and testing optomechanical assemblies, designing circuit boards, integrating fluorescence systems, and refining motion, control, and imaging modules. Your work will shape the actual instruments we put into labs.

You’ll work closely with our Head of Engineering and wider technical team.  Your work will directly influence the development of next-generation diagnostic instrumentation. This is a role for someone who thrives in R&D prototyping environments and wants to be directly responsible for delivering functional, elegant systems.

Key Responsibilities

• Design and Build: Develop and prototype PCBs, motion control stages, fluorescence detection modules, and inline fluidic systems.

• System Integration: Collaborate with microfluidic, assay, and AI/software engineers to ensure hardware interfaces cleanly with the rest of the stack.

• Optical Alignment: Build optical pathways, align fluorescence excitation/emission systems, and optimise signal acquisition.

• Component Sourcing & Rapid Prototyping: Source off-the-shelf parts and manage rapid prototyping pipelines.

• Experimental Validation: Validate hardware systems against real biological assays, iterating based on performance.

• Documentation: Generate DfM-ready CAD files, BoMs, build notes, and QA documentation for future transition to scaled manufacture.

Who We’re Looking For

You should be comfortable working from first principles (e.g. fluid flow, optics, thermal gradients). You should be creative, detail-oriented, and driven to build tools that solve real-world problems. We are looking for a  rigorous, self-directed work ethic and methodical mindset, these are essential.

Essential experience:

• BEng or MEng in Mechanical, electrical, or related Engineering discipline.

• 1+ years of experience (industry, academic, or personal projects) building scientific or automation hardware.

• Familiarity with coding Arduino, Raspberry Pi, or other microcontroller platforms.

• Experience with optomechanical system design, benchtop prototyping, and sensor integration.

• A strong understanding of electronics fundamentals, including PCB design

• Comfort working cross-functionally and iteratively in a startup environment.

Bonus experience:

• Hands-on experience with designing fluorescence detection/imaging devices

• Experience with microfluidic device design and/or fabrication (via photolithography, 3D printing, and/or any other methods)

• Knowledge of hardware regulatory requirements, especially for laboratory/diagnostic devices

Why Join Us?

• Build technology that matters—advancing diagnostics, therapeutics, and research.

• Contribute to products that have the potential to save lives and transform industries.

• Join a small, high-performance team where your input has direct impact.

• Work at the cutting edge of fluorescence imaging, AI, microfluidics, and biophysics.

• Collaborate with industrial partners including CROs and SME biotech companies. 

• Help shape a new generation of molecular detection tools—starting from scratch.

To apply, email your CV and a cover letter explaining your interest to info@invenirex.co.uk.

We don’t care about brand names on your CV. We care about your curiosity, your work-ethic your ability to solve hard problems, and your drive to build.

Invenirex is an equal opportunity employer. We welcome applicants from all backgrounds and experiences. We hire for potential and ability, not pedigree.