Senior Mechanical Engineer

Reporting to: VP of Engineering

Location: Reading, RG30 1DZ

Working hours: 37.5 hours, Monday - Friday

BigSis (www.bigsis.tech), a UK start‑up, is applying robotics and artificial intelligence to transform the production of sterile male insects, which are used for chemical‑free control of pest insects. BigSis has developed a pilot automated production line and is now focused on scaling to millions of insects per week.

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• Spirit – Having innovation, team and fighting spirit!
  
• Fluid – Working in a flexible way and being open to change
  
• Trustworthy – Includes honesty, integrity, respect and being approachable
  
• Growth mindset – Learn and grows & embraces challenges
  
• Succeeding together – Collaborate and celebrates success together
  

We are seeking a Senior Mechanical Engineer to join our innovative, fast‑paced team at BigSis, where you'll play a key role in developing cutting‑edge automated production systems for sustainable agriculture. You will be instrumental in designing, developing, and optimizing mechanical components for insect‑rearing automation.

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• Technical Leadership: Lead the design and development of key components and modules, taking ownership of their technical direction.
  
• System Troubleshooting: Contribute to larger projects and resolve issues within existing systems to ensure optimal functionality.
  
• Mentorship: Coach and mentor junior engineers, supporting their technical development and fostering a collaborative learning environment.
  
• Process Improvement: Play a key role in defining and enhancing development tools, methodologies, and processes for BigSis.
  

This hands‑on position involves:

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• Designing innovative mechanical solutions, specifically for handling and processing insect containers within the automation system.
  
• Integrating mechanical designs with electronics and other engineering teams to ensure seamless operation of the production modules.
  
• Ensuring that designs meet operational requirements and collaborating closely with other engineering disciplines, particularly electronics and software.
  

We're seeking someone who thrives in a start‑up environment and is comfortable delivering functional, "good‑enough" solutions under time pressure—while continuously refining and improving the systems over time.

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• 2:1 degree in a relevant engineering discipline or equivalent.
  
• Extensive hands‑on experience designing and implementing functional mechanisms for automation and handling of small objects.
  
• Design of high‑speed automated material transfer systems and associated components.
  
• Solution orientated with an ability to think outside the box.
  

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• Experience of automated systems processing very high volume of units in a day.
  
• Worked on systems where components needed to be designed for manufacturing and precise assembly/operating tolerances.
  
• Designed robust, ruggedised and precision mechanical systems for 24/7 operation with minimal downtime.
  
• Experience with fluid mechanics, including pumps, valves, nozzles and spraying technologies.
  
• General understanding and hands‑on experience with workshop equipment.
  
• Familiar with rapid prototyping technologies such as 3D printing.
  
• Understanding of design for injection moulding, CNC machining and turning/lathe.
  
• Designed and assembled low power automated systems and/or equipment, e.g. animatronics, vending machines, automated food or pharmaceutical production.
  
• Worked with stepper motors, servo motors, automatic material handling systems.
  
• Experience coaching and mentoring junior engineers or leading product development team.
  
• Project management skills or certification.
  
• Designed and assembled of electronic circuits, electrical panels and/or PCBs.
  
• Worked in an environment with hygiene and/or regulatory requirements, such as the food, cosmetics or medical sectors.
  
• Competent with SolidWorks software.
  

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• Energy, ambition and commitment to ensure the job gets done.
  
• Honesty, integrity and openness to ensure we build a great company culture.
  
• Flexibility to changes in priorities and adaptability to new ideas.
  
• Out of the box thinking and ‘can do’ attitude.
  
• Team player who creates and thrives in a collaborative environment.
  
• Effective communication skills.
  

You need to be comfortable working with live insects, including spending time in the hot and humid insect rearing area. Insects and their growth cells are very small, so you need good fine work skills.

To be considered for this role, please send a CV and cover letter to explaining why you think you are the right person for this job. Please include information about your education, work experience and current salary.

BigSis is an equal opportunities employer. Applicants will be considered without attention to age, sex, race, disability, pregnancy, marital status, sexual orientation, gender reassignment and religious background.