1. A computer-implemented method, suitable for use in a distributed computing environment, utilizing a processor and a memory for implementing a scalable and distributed build service, the method comprising: determining a branch to build; identifying a virtual machine for building at least a part of the branch; identifying a plurality of source files to be transferred for the branch, wherein the virtual machine processes at least a source file of the plurality of source files to generate a corresponding binary file; transferring the source file of the plurality of source files to the virtual machine; deploying a build environment on the virtual machine on demand, based on requiring resources of the virtual machine; causing, using one or more processors, the virtual machine to process at least the source file of the plurality of source files so as to generate a binary file; and causing a signing server to generate a digital signature for the binary file based on a representation of the binary file, the signing server being different from the virtual machine.