On qualifying as a Chartered Accountant in 1982 with Arthur Young in Glasgow, Janusz specialised in tax and transferred to their London office tax department. Since then he has worked on a wide cross-section of clients including financial, energy, property and manufacturing. The mainly international client base has involved both UK domestic and cross-border in- and out-bound investment decisions. Janusz has worked closely with UK, US and Japanese clients, liaising with overseas offices and co-ordinating clients' international tax affairs. He has also been seconded to the tax departments of major companies, gaining valuable commercial experience.  

Whilst at Arthur Young, Janusz spent nine months developing tax training modules on groups, property and international tax matters. He has wide experience as a lecturer in UK; also overseas as part of the "Know-How Fund" Government initiative, which involved him lecturing in Polish.

Janusz is also responsible for client search and recruitment, whether for full-time or contract work, through CWE Associates.