Sumber Mitra Jaya (SMJ) is the founding company of the Mitra Jaya Group. SMJ has accumulated 39 years of professional experience in a wide range of large construction and mining projects. SMJ is fully supported by efficient management, experienced professionals and a complete range of modern and reliable equipment to guarantee that every project that SMJ handle will be completed on time and as per specification without compromise. SMJ has been awarded a Grade 7 classification, the highest level awarded to road and bridge contractors by the Director General of Bina Marga, Department of Public Works of Indonesia, and also by LPJK (Lembaga Pengembangan JasaKonstruksi), a wholly independent organization. Today, SMJ is proud to present some of its most impressive portfolio of prestigious contracting projects successfully completed in record time, and to national and international standards in infrastructure development and mining contracting.

Kami percaya bahwa karyawan adalah aset berharga kami dan bahwa setiap orang di perusahaan kami adalah pemain kunci dalam membantu perusahaan untuk mencapai puncak kesuksesan. Kami mencari professional yang termotivasi, dinamis, bertanggung jawab dan disiplin bersedia untuk maju dan bergabung dengan kami dan menjadi salah satu tim hebat kami.