Product Quality, Safety and Compliance

Toxicologist - Senior Scientist II

R-78720 | Reading, United Kingdom

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Job Description

Are you looking for a rewarding role where you can make a positive impact, working with the world's most innovative food and Life Sciences companies?  

Join our diverse team today and help us deliver real world solutions for a brighter future! 

Reading Scientific Services Limited (RSSL – Parent Company Mondelēz international) is a multi-award-winning food and pharmaceutical research organization, pushing the boundaries of science to make our world safer, healthier and more sustainable. Our clients, based across 60 countries, trust us to deliver intelligent solutions to real-world problems through rigorous analytical testing, cutting-edge research and development, customized consultancy and training services.  

When you join RSSL, you’re joining a global network enriched by our parent company Mondelēz International. Our diverse team includes 23 nationalities from 300 members and, all together, we are committed to transforming lives through science, innovation, and collaboration. 

Position Purpose Statement

The role of Toxicologist is to provide toxicology risk assessments and opinions for client projects.   As a registered toxicologist, the role holder will be responsible for providing technical direction in terms of best practice in risk assessments, completing their own assessments, reviewing others and authorising of interpretive scientific reports. They are responsible for organising and assigning projects according to available resources, and may take on line management responsibilities.  Accountable for training other risk assessors and for maintaining access to appropriate modelling software and databases for risk assessments. Also, to work with business development and marketing colleagues to develop and promote the service.  They also chair the In-house safety panel for sensory assessment and support EHS colleagues in chemical safety.

Primary Accountabilities / Responsibilities


  • Provide high quality customer service at all times by ensuring effective organisation of assigned workload, integrity of opinions generated and timely/accurate provision of reports.

  • Provide toxicology consultancy services, including risk assessments and opions of foreign materials, contaminants, product degradations and leachables and extractables.

  • Provide technical direction for toxicology services across RSSL.

  • Review and Authorise Toxicology reports.

  • Maintain access to appropriate toxicology databases and tools

  • Provide training and mentoring to trainee toxicologists

Communication & Influence

  • Work as part of an efficient consultancy team

  • To liaise with clients, business development and line management to ensure effective communication of project proposals and results.

  • Provide expert advice and lead client and stakeholders meetings as required Deliver external presentations of data and internal presentations to senior technical stakeholders eg directors, vice presidents

  • Contributes to technical strategies & influences senior management

Leadership and supervision

  • Provide technical direction for toxicology services

  • Plan own workload and plan routine projects for junior staff

  • Train and mentor junior members of the team as required

Quality Health and Safety

  • Work to the highest standards of safety and quality by ensuring that appropriate COSHHs, risk assessments and SOPs are understood and followed.

  • To complete assigned quality actions on a timely manner, including review and approval

  • Consultant for and generation and approval of Risk Assessments and COSHH Understand and provide technical regulatory leadership in client audits

  • To understand and work to the requirements of GMP and UKAS. Ensure training records are accurate.

Experience required

  • Degree or PhD in a relevant toxicology science.

  • Proven track record of relevant toxicology experience.

  • In-depth knowledge of both technical area of expertise & business environment including regulatory requirements

  • Registered toxicologist

Skills & Competencies

  • Strong written and spoken communication skills, with the ability to influence, network and manage internal/external relationships.

  • Excellent organisational skills including time management and priority setting.

  • Meticulous attention to detail, well organized and strong team working ethos. able to organise own work and others to maximise output

  • Strong project management and planning skills, experienced in managing project teams and leading resourcing allocation.

  • Technical credibility to develop good working relationships with internal and external clients.

  • Ability to handle complex data sets

  • Computer literate in standard MS office applications and In silico modelling

  • The individual in this position is a recognized expert in their discipline and has a demonstrated track record of applying their knowledge across different business areas.

  • Proven experience of authoring technical reports and presenting findings at relevant symposia.

In return for your commitment, drive and enthusiasm, we offer an attractive benefits package within a highly successful international business that offers financial rewards and resources, including: 

  • Opportunities to learn and develop 

  • Flexible working

  • Performance Related Bonus scheme 

  • Contributory pension (up to 11% employer contribution) 

  • Life assurance 

  • 27 days holiday allowance (possibility to buy 5 extra days) + bank holidays

  • Employee Assistance Programme (EAP) 

  • A flexible benefits programme (Gym discounts, private health insurance, restaurant discounts, etc). 


At RSSL, flexibility is one of our key priorities. We recognise that flexibility means different things for different people and therefore we will work with individuals to determine what this looks like. Flexibility comes in many forms both within informal and formal working arrangements so please ask for more information at interview stage should you need more details.  Possibility of working from home, based in UK can be discussed.

Want to learn more?  

Please explore: 

RSSL website: 

YouTube channel: 

LinkedIn page: 


In 2022, we were recognised as OBN Best CRO, Employer of the Year at The Great British Business and Community Awards and Business of the Year at the Thames Valley Business Awards in 2021. Previous accolades include Business of the Year at the Thames Valley Business Awards, OBN Best CRO and the Women in Business Awards’ Most Enlightened Employer, in 2019.  


No Relocation support available

Business Unit Summary

Reading Scientific Services, Ltd. (RSSL) is a cutting-edge contract research organization (CRO), providing research, analysis and consultancy to the food and pharmaceutical sectors. Whether we are creating new products, validating medicines or solving investigations, we take pride in being a leader in our field, serving clients from across 60 countries.  

We were recognized in 2019 as an Enlightened Employer, Women in Business and Thames Valley Tech finalists and in 2018, one of our family members earned the Food & Drink Federation’s Scientist of the Year. Enriched by our parent company, Mondelēz International, our diverse team of 300 includes 23 nationalities, creating a family feel as we strive toward our mission of “Science Enhancing Lives.”

Mondelēz International is an equal opportunity employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, gender, sexual orientation or preference, gender identity, national origin, disability status, protected veteran status, or any other characteristic protected by law.

Job Type


Food safety

Product Quality, Safety and Compliance


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