As the eldest of four siblings, Haroldo Jacobovicz grew up in a household where engineering was a family tradition. His father Alfredo taught as a university professor while practicing civil engineering, and his mother Sarita made history as Paraná’s seventh female civil engineer. Despite this legacy, Haroldo chose to apply his Federal University of Paraná engineering education in unexpected directions.

The 1980s marked a turning point when Haroldo Jacobovicz recognized the potential of information technology while others remained focused on traditional industries. This vision led him to form Microsystem with three computer-skilled friends before completing his degree. Their venture targeted retail establishments with automation solutions for inventory and sales operations.

Though ahead of its time and ultimately unsuccessful after two years, this initial business attempt set the foundation for his future enterprises. Professional experience at Exxon Mobil (formerly Esso) provided Haroldo Jacobovicz with corporate perspective. Starting as a reserve salesman, he quickly climbed to market analyst for Brazil’s southern region before reaching the national headquarters in Rio de Janeiro where he managed commercial tactics and new business development. His work heavily relied on analyzing computer-processed data, reinforcing his interest in technological applications.

When Brazil’s Cruzado Plan created economic complications and family considerations pulled him back to Paraná, Jacobovicz joined the Itaipu Hydroelectric Plant as an advisor to the Technical Director. During his four-year tenure at this massive infrastructure project, he observed firsthand how bureaucracy complicated technology adoption in government settings, particularly regarding computer asset acquisition.

This insight inspired his next venture: Minauro, which offered innovative four-year computer rental contracts to public agencies with equipment replacement every 18 months and maintenance included. This approach solved procurement challenges for government entities and won numerous bids across southern and southeastern Brazil.

Jacobovicz later expanded his technology portfolio by incorporating software solutions through strategic acquisitions, forming the e-Governe Group to serve municipal governments with administrative systems. His telecommunications company Horizons Telecom, established in 2010 with former Anatel president Renato Guerreiro, became a corporate market leader before being sold to investors in 2021.

That same year, Jacobovicz launched Arlequim Technologies with a mission to democratize computing power. The company specializes in virtualization technology that enhances the performance of older computers, making digital resources more accessible to businesses, public institutions, and individuals including gamers—all without requiring new hardware purchases.

Throughout these business transitions, Jacobovicz has maintained a consistent focus on practical applications of technology. His career demonstrates how engineering principles can transfer across disciplines, while his ventures reflect a commitment to making technological tools more widely available in Brazil’s developing digital landscape.