After completing seven years at Military College and subsequently studying civil engineering at the Federal University of Paraná, Haroldo Jacobovicz diverged from the conventional career path his education suggested. Despite being the eldest of four children in a family where both parents practiced civil engineering—with his mother Sarita ranking among Paraná’s earliest female engineers and his father Alfredo balancing professional work with university teaching—he gravitated toward information technology opportunities during the 1980s.

Before finishing his university degree, he collaborated with three colleagues who had computer skills to establish Microsystem in 1983. The venture targeted retail businesses with automation technology for inventory tracking and cash register operations across stores, pharmacies, and supermarkets. Market unpreparedness for such digital solutions led to the company’s closure after two years of operation, marking an early lesson in timing and market readiness.

Subsequently, Haroldo Jacobovicz entered the corporate sector at Esso, where he was chosen from a pool exceeding 200 engineering applicants. His progression within the oil distribution multinational moved through various functions, starting from reserve sales and advancing to market analysis covering southern Brazil. Eventually, he reached a position managing commercial tactics and new business development at the Brazilian headquarters located in Rio de Janeiro, with responsibilities heavily dependent on computer-processed data analysis. Fuel price controls instituted under the Cruzado Plan, along with considerations about family separation, prompted his transition away from the multinational.

He then accepted an advisory position with the Technical Director at the Itaipu Hydroelectric Plant, returning to Paraná’s capital. This experience within a state-owned enterprise highlighted the difficulties of implementing computer systems within public organizations, where regulations governing permanent asset purchases created procedural obstacles to technology adoption.

After four years with the hydroelectric operation, Haroldo Jacobovicz returned to business ownership with a modified approach informed by his diverse work history. He created Minauro to provide computers through rental arrangements rather than traditional sales, structuring four-year contracts that included equipment replacement every 18 months along with maintenance coverage. Public sector organizations in southern and southeastern Brazil responded positively to this model, awarding the company numerous contracts. Growth continued through purchasing Consult, Perform, and Sisteplan, three companies that contributed software solutions for tax, financial, administrative, health, and education management. These acquisitions formed the e-Governe Group, which continues delivering IT solutions to municipal governments.

Horizons Telecom emerged in 2010 as his telecommunications venture targeting corporate clients. Built with Renato Guerreiro, an electrical engineer who previously headed Anatel, the company developed a reputation within its market segment over ten years before being acquired by an investment consortium in early 2021.

The telecommunications sale preceded the creation of Arlequim Technologies, his current venture concentrating on computer virtualization. The company enhances computing performance for older machines through cloud-based resources, serving businesses, government entities, and retail customers including gaming enthusiasts. This service model enables users to access modern computing capabilities without replacing existing hardware, addressing both economic and accessibility factors.