The usual tricks to mask age, if you haven't already used them, can be employed. No point going overboard as it looks like you've something to hide, but there's no need to include your birthdate on your CV, dates for your educational qualifications, or every single role you've held (i.e. you can drop your first few jobs to shed visible years).You mention lowering the grades on your degrees - to be honest, if you're going into this level of detail at your age, it suggests you may have a lot of other extraneous information on your CV which does not support your application but can be used to knock it out of contention.Having minimised age-related and other extraneous influences on the recruiter, make sure that the language you use matches the requirements of the job. We all get used to slightly "puffing up" our levels of responsibility and achievement on our CVs, but you may actually need to "deflate" if you're applying for roles which require more hands-on delivery experience. For example, if your CV says you "led" a project, you can change it to say you "managed" the project and focus on your role within the team, rather than the team as a separate reporting unit.The other thing you could do, contrary to typical career advice, is to put your salary expectations on your application. The recruiters may simply be assuming based on your experience that you'd be too expensive. If they realise how "affordable" you are, they may pounce on you.