Human Factors Scientists - mid-grade

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Location: Bristol, UK (Hybrid Working)  

Salary: £40,000 – £70,000 (depending on experience)  

Contract Type: Full-time, Permanent -two positions available 

At Trimetis, we are a leading research and consultancy company delivering cutting-edge human factors research and solutions across defence, security, transport, and healthcare sectors. We apply behavioural science, systems thinking and design thinking to create safer, more effective technologies and environments.  

We are expanding our Human Factors team and are seeking enthusiastic, skilled Human Factors Scientists to work on exciting projects involving human-autonomy teaming, decision support systems, AI and operational environments.  

• The design, conduct and analysis of human factors/applied psychology research, including literature reviews, experiment design, qualitative user research and task analysis.  
• The development and application of behavioural and cognitive psychological models and methods.  
• HCI design and evaluation, including iterative user research, design and evaluation.     
• The preparation and delivery of client-facing reports, presentations, and workshops.  
• Collaboration with multidisciplinary teams (engineers, academics, psychologists, UX specialists, military SMEs).  
• Bid writing and business development activities.

• Degree or postgraduate qualification in Human Factors, Ergonomics, Psychology,  Human Computer Interaction, Cognitive Science, or related discipline.  
• Genuine intellectual curiosity and being comfortable with abstract thinking.
• Ability to think both critically and flexibly. 
• Experience in applying human factors/HCI methods to real-world problems.
• Strong research, analytical, and communication skills.
• Good report writing skills. 
• Proficient in data analysis (e.g., SPSS, R, Python, Excel, Nvivo, Atlas.ti) and human factors tools.
• Ability to work independently and as part of a team in a client-facing role.
• Be able to join the team in our lovely central Bristol office for a minimum of 50% of the week, the rest can be from home if desired. 
• Eligible for UK security clearance (SC as a minimum) – Trimetis will support the  candidate to gain clearance.  

• A minimum of 3 years’ post graduate experience or a recent, relevant PhD in lieu of experience.
• Experience working in defence, security, transport, healthcare, or energy sectors.
• Knowledge of relevant research and theories in human-and-AI systems, human autonomy teaming, sensemaking, distributed cognition, cyber security, trust.
• Previous consultancy experience or project management skills.
• Experience supervising research projects and mentoring others.   

• Competitive salary and a substantial performance bonus. 
• Opportunities for professional development and chartership support (CIEHF  membership, BPS membership). 
• Hybrid flexible working arrangements.
• Involvement in cutting-edge research projects shaping future operational systems.
• High quality city centre office location with good connections and facilities.
• A collaborative and supportive working culture.  

To apply, please send your CV and a cover letter to hannah.blackford@trimetis.co.uk by 21st August 2026.

Trimetis is an equal opportunities employer. We celebrate diversity and are committed to  creating an inclusive environment for all employees.