Lee, an engineer at Samsung’s semiconductor division, used to meticulously plan his workload, often staying late to ensure every project exceeded expectations. Now, his evenings are dedicated to a different kind of strategic planning: job applications for SK Hynix, Samsung’s South Korean rival. He actively shares application tips and personal statement advice with colleagues, many of whom are following suit. The irony isn’t lost on him; even his own team lead encourages the move. "My team lead tells us all to jump ship to SK Hynix," Lee reveals, the sentiment reflecting a broader disillusionment within Samsung’s semiconductor ranks. This mass exodus is fueled by the staggering $476,000 bonus SK Hynix is poised to distribute to its employees, a reward stemming from unprecedented profits generated by manufacturing the high-bandwidth memory (HBM) chips that are the lifeblood of Nvidia’s AI accelerators. This figure dramatically eclipses the bonuses offered at Samsung, creating a palpable sense of urgency and prompting a wave of defections.

As the artificial intelligence revolution accelerates, the semiconductor industry finds itself at the epicenter of an intense talent war. Giants like Samsung and SK Hynix are locked in a battle for the brightest minds, deploying a potent arsenal of lucrative bonuses, aggressive recruitment tactics, and even legal maneuvering. The outcome of this competition could decisively shape the future dominance of HBM chips, the critical components powering the AI boom. Lee’s team of 30 engineers, with the exception of two team leads, has collectively applied for positions at SK Hynix following a job posting in July. Lee, a three-year veteran at Samsung, even applied for an entry-level role, as did a colleague with eight years of experience. Both were initially rejected, but they remain optimistic about future opportunities, particularly for more senior engineering positions. All employees interviewed by MIT Technology Review requested anonymity, fearing professional repercussions from their employers. Samsung declined to comment, and SK Hynix did not respond to inquiries.

Following protracted negotiations with its labor union, Samsung reached an agreement in May to allocate 10.5% of its semiconductor division’s operating profits to employees as annual bonuses for a decade, primarily in company stock with a three-year vesting period. This concession came after SK Hynix committed last year to distributing 10% of its operating profits, translating to an impressive $476,000 per employee this year, predominantly in cash. However, at Samsung, bonus payouts are intrinsically linked to the performance of individual divisions. Chip workers in the memory division, which is experiencing a surge in demand for HBM chips, are set to receive bonuses approximating $400,000 per employee. In stark contrast, those in Samsung’s foundry division, responsible for manufacturing logic chips for clients like Tesla and Google and which has been operating at a loss, will receive a considerably smaller bonus of around $135,000. Employees have voiced their frustration, citing Samsung’s explanation that divisions with lower profitability cannot offer equivalent bonuses. Lee expressed his profound disappointment, stating, "Even if Samsung does well in the future, I don’t think any of it will trickle down to me."

The disparity in bonuses is making SK Hynix an increasingly attractive proposition. A June survey conducted by the Samsung labor union revealed that 81.5% of employees in the foundry division, and nearly half of the semiconductor division as a whole, expressed a desire to seek employment elsewhere within the next two years. In April, Choi Seung-ho, the head of the Samsung labor union, reported that over 200 union members had transitioned to SK Hynix in the preceding four months. On Blind, an anonymous professional networking platform, a growing number of disgruntled Samsung engineers openly discuss their aspirations to join SK Hynix for superior financial incentives.

For decades, SK Hynix operated in the shadow of Samsung, perceived as the smaller, less prestigious memory manufacturer that elite engineering graduates often overlooked. However, a pivotal moment arrived in 2019 when Samsung, perhaps underestimating the burgeoning market, downsized its HBM team. Conversely, SK Hynix doubled down on its investment in the technology. The subsequent AI boom dramatically amplified the demand for HBMs, which are essential for supplying AI chips with the massive data volumes required at ultra-high speeds, consequently driving prices to record highs. SK Hynix has since emerged as the global leader in the HBM market, with Samsung now striving to catch up. Both companies achieved a market capitalization exceeding $1 trillion in May, and SK Hynix briefly surpassed Samsung as South Korea’s most valuable company in June.

Anticipating a continued surge in demand for memory chips, both semiconductor titans are embarking on ambitious expansion plans. Last month, they announced a joint commitment to invest over $2 trillion by 2040, including the development of a semiconductor "mega-cluster" in Yongin, a city south of Seoul. To support this expansion, SK Hynix added 2,152 employees in the first half of 2026 alone and aims to double its manufacturing capacity within five years. Samsung intends to recruit 60,000 new employees over the next five years, with a significant focus on its semiconductor division. Despite these efforts, a substantial talent gap is projected. According to the Korea Semiconductor Industry Association, the South Korean semiconductor industry will require approximately 304,000 workers by 2031, facing a shortage of roughly 54,000.

In this high-stakes environment, both rivals are showering employees with substantial bonuses to retain existing talent and poach from competitors. Baek, a manager at SK Hynix, observes, "[SK Hynix] seems to target Samsung engineers when hiring because it’s a rival. From what I heard internally, the big performance bonuses we got were aimed at luring away talent from our competitor." The legal landscape is also becoming increasingly involved. In July, Samsung secured an injunction preventing two former chip workers from joining SK Hynix for 18 months, citing the critical national security importance of chip technology. The court’s ruling emphasized the necessity of establishing a "fair market order" amidst fierce industry competition.

This outflow of talent poses a significant threat to a key advantage Samsung currently holds in the HBM race. Park Jun-young, a semiconductor expert and former Samsung employee of a decade, highlights Samsung’s unique position: "Samsung is the only memory maker in the world that owns a foundry business." This integrated model is crucial for the latest generation of HBM technology, known as HBM4, where the logic chip at the base of the memory stack requires manufacturing processes typically handled by foundries. While Samsung can perform this in-house, SK Hynix relies on Taiwan’s TSMC for this service. Park warns, "If Samsung keeps losing engineers in the foundry… the collaboration between memory division and foundry division could become difficult." He suggests that SK Hynix, by now actively recruiting foundry engineers, could potentially accelerate its research and development in HBMs. Choi, a seven-year veteran engineer at Samsung, once a lauded performer, now finds himself and his colleagues diligently tracking SK Hynix’s job postings. "We tell each other when the next SK Hynix job posting is up," he states, concluding, "There’s always more work to do beyond our basic duties. But there’s no point in doing it."