Find engineers who design, calculate and check work to IEC 61439. The same engineering task can require completely different design standards by jurisdiction — which is why this is a structured field and not a keyword.
Nominating the standard is one of the highest-value things you can do in a brief. A design produced to the wrong code is not a design that needs adjusting — it is work that has to be redone, and the cost of finding that out late is entirely avoidable.
State IEC 61439 and your jurisdiction explicitly. The engineer should confirm the choice before starting and record it in the design basis, so every downstream check is traceable back to the clause it was made against.
Mixed-Signal Engineering specialist — load flow & short circuit & embedded firmware
RF Systems Engineering specialist — lighting design & battery management systems
4DaysRemoteMixed-Signal Engineering
Carlos BhattFrom$1,320
3DaysOn-site availableMixed-Signal Engineering
Carlos BhattFrom$840