Job Title: Principal Air Quality ConsultantLocation: London (Hybrid)Salary: 50,000 - 65,000 + BenefitsA leading environmental consultancy is looking to appoint a Principal Air Quality Consultant to strengthen its London team. This is a brilliant opportunity for an experienced air quality specialist to lead major projects, support growth, and guide a developing team within a flexible hybrid setup.As a Principal Air Quality Consultant, you''ll take technical ownership of complex air quality and EIA work across transport, infrastructure, and urban development. You''ll act as a trusted technical lead-managing modelling, reporting, and compliance while mentoring junior staff and contributing to long-term business development in the London region.Benefits for the Principal Air Quality Consultant: 50,000 - 65,000 + annual bonusHybrid working with a central London base25+ days annual leave + bank holidaysPension, private healthcare and funded CPDClear pathway to Associate levelKey Duties:Lead air quality assessments and dispersion modelling projectsProduce EIA air quality chapters, compliance assessments and technical reportsManage and grow key client relationshipsProvide technical leadership and QA across the teamMentor junior consultants and support their developmentLiaise with regulators, planners, and local authoritiesRequirements:6+ years'' experience in air quality consultancy/regulationStrong experience with ADMS, AERMOD and IAQM/EPUK guidanceDegree in Environmental Science, C