Yeah I'm an SW engineer and my job is 30% coding max. Equal part is requirements engineering (so translate sys reqs to sw reqs, ensure traceability and such), static code analysis and dev tests plus 10% change management. The last part is the most interesting part as this includes analysis of feasabilty, risk and impact assessment as well as proposing/reviewing sys reqs for new or existing features. Glad I'm not a sys dev though as they don't get to code at all.