Poly(N-ethyl-3,6-carbazolediyl) was synthesized by electroreduction of the NiBr2/2,2′-bipyridine/3,6-dibromo-N-ethylcarbazole system in N,N-dimethylacetamide. Both gel permeation chromatography analyses of the polymer formed and electrochemical studies of the system during the course of polymerization in homogeneous phase point at a constant efficiency of the catalytic complex. The latter generates potentially active species which contain the transition metal inserted into a CBr bond. Mechanisms of formation of the growing chains are proposed on the basis of the electrochemical behaviour of the catalytic system. Chemical doping of the polymer leads to a material the conductivity of which is in the range 10−4 < σ/(Ω−1 · cm−1) < 10−3.