Walthamstow Hall has an active Careers Department and well-resourced Careers Centre and information on careers and courses is also available on Firefly.

Careers education and guidance is a key part of the PSHEE programme and is based on the Kent guidelines for Careers Education, Information, Advice and Guidelines (CEIAG). Walthamstow Hall is also a member of Inspiring Futures, the careers advice organisation which provides access to independent careers guidance and resources for both students and their parents.

In January of Year 12, students begin a programme of individual careers interviews, Centigrade, an online Higher Education selection programme, culminating in a UCAS workshop day on preparing personal statements and registering for UCAS. Careers advice is also provided for students who wish to pursue alternatives to university, such as Higher Level Apprenticeships. Year 13 students are given training on different interview techniques and there is an option for students to have filmed practice interviews.

The careers programme is augmented by sessions within PSHEE on aspects of careers guidance including; decision making, self-awareness, the labour market, student finance and managing money.

Speakers from a wide range of industries come into School to speak to students about their career paths. Students particularly enjoy talks given by Walthamstow Hall Old Girls. In recent years old girls working in aviation, PR, medicine, the third sector, academia, scientific research and finance have returned to School and inspired the current generation about to step out into the world.