Mathematics Teacher (1986-1990)
Assistant Professor: 1990-2000
Lecturer: since 2000
Linear Algebra, Abstract Algebra, Galois Theory, Commutative Algebra, Linear Algebra and Analytical Geometry, Universal Algebra and Lattice Theory, Computational Algebra, Elementary Number Theory, Algebraic Number Theory, Number Theory Algorithms, Didactics in Mathematics, Arithmetic in Rings, Elements of Cryptography.