Microsoft Veteran Soma Somasegar Dies at 59 in Seattle

S. Somasegar, the Indian-born technology executive who spent nearly three decades at Microsoft shaping developer tools used by tens of millions of programmers, died on May 19, 2026, in Seattle at 59. Madrona Venture Group, the Seattle venture capital firm where he had served as managing director for the past 11 years, confirmed the news alongside Microsoft on Tuesday afternoon. No cause of death was given.

In the days before his death, Somasegar had been named to Business Insider’s SEED 100 list recognizing the top early-stage investors of the year. He is survived by his wife, Akila, and two daughters. He had been, by all accounts, still working at full capacity, backing startups and writing for Madrona’s website.

From Puducherry to Windows NT

Born on August 13, 1966, in the southern Indian coastal town of Puducherry, Sivaramakrishnan Somasegar grew up in a household where education, as a 2008 profile in Mint noted, came before everything else. He completed a bachelor’s degree in Electronics and Communication Engineering at Guindy Engineering College, Anna University in Chennai, then moved to the United States in 1987 for graduate work at Louisiana State University, earning a master’s degree in Computer Engineering.

Microsoft came calling in 1989. Somasegar joined as a software engineer on the OS/2 team, working on an operating system the company was developing in partnership with IBM.

He shifted to Windows NT not long after, contributing to memory management and file systems. That was consequential early work. Windows NT was Microsoft’s architectural wager on a 32-bit operating system that would outlast the MS-DOS era and serve as the engineering foundation for every Windows release that followed. Getting into that project at the systems level, before the product had proven itself commercially, shaped how Somasegar understood platform construction for the rest of his career.

By the mid-1990s, his attention moved toward developer tools. Microsoft was investing heavily in that division to deepen its ecosystem hold, and Somasegar worked through several engineering leadership roles before eventually running the full Developer Division, holding the title of Senior Vice President until he left the company in late 2015.

The Developer Platform, Rebuilt from Inside

Running Microsoft’s Developer Division meant overseeing Visual Studio (an integrated development environment spanning multiple programming languages and platforms), the .NET Framework (a managed code platform enabling cross-language application development and cloud deployment), MSDN documentation, and increasingly mobile tooling. Under Somasegar’s leadership, the division extended its charter from Windows-centric development to cover iOS, Android, and cloud deployment through Azure. He described his philosophy as ensuring any developer could build any kind of app on any platform.

His most significant single decision came in 2014, when he drove the open-sourcing of .NET and the creation of .NET Core, a cross-platform runtime that freed the framework from Windows exclusivity. That moved the relationship between Microsoft and the open-source development community further, faster, than almost any other action the company had taken during that period. A few numbers show the scale of the constituency he managed, as described in Madrona’s official profile of Somasegar.

• 6 million+ active .NET developers worldwide supported by his division
• 8 Windows releases across his 27-year Microsoft tenure, from the foundational 32-bit Windows NT architecture through the cloud era
• 4 countries where he oversaw Microsoft’s Global Development Centers as executive sponsor: China, India, Israel, and the United States (Boston)
• $1.1 billion: what OpenAI paid for Statsig in 2025, one of the companies Somasegar backed after leaving Microsoft for Madrona

Engineering Centers Beyond Redmond

Less discussed than Visual Studio or .NET is Somasegar’s role as executive sponsor for Microsoft’s global research and development expansion. He oversaw the establishment of development centers in China, India, and Israel, and supervised the lab in Boston, guiding the institutional build-out that let Microsoft conduct core product engineering outside the Pacific Northwest for the first time at scale.

The India Development Center in Hyderabad became a strategic asset. For the broader Indian technology community, Microsoft’s commitment to running genuine product engineering there, rather than only support and localization work, helped establish that substantive multinational research and development could happen outside the United States. Somasegar’s visibility in that effort carried meaning for engineers watching whether the path from an Indian university to senior leadership at a major American technology company was genuinely available.

A native of Puducherry who had studied at Anna University before completing graduate work in Louisiana and rising to Senior Vice President at Microsoft, he embodied an answer to that question in a way that no internal company communication could replicate.

Madrona and the Portfolio That Paid Off

The Investment Thesis Takes Shape

Somasegar joined Madrona Venture Group as a Venture Partner in November 2015, weeks after announcing his departure from Microsoft, and was promoted to Managing Director in January 2017. His investment focus centered on artificial intelligence, next-generation cloud infrastructure, and intelligent applications. That combination was not unusual in venture circles in 2015; it was prescient by 2020.

His operating background gave him an edge that most venture investors at the time could not replicate. He had managed the tools that millions of engineers used daily and understood the adoption curve for developer-facing infrastructure software from the inside. At Madrona, he helped portfolio companies navigate relationships with the two largest cloud providers, Amazon and Microsoft, both headquartered in Seattle.

Snowflake co-founder and president of products Benoit Dageville credited Somasegar and the Madrona team with helping Snowflake establish its engineering headquarters in the Seattle region when the company was a fast-growing startup in 2017 and with navigating those cloud provider relationships. “The Madrona team really comes through for their companies,” Dageville said, in a statement Madrona published on its site.

Companies That Proved the Thesis

Somasegar led or co-led Madrona’s investments in several companies that grew into multibillion-dollar businesses. A selection of those positions shows the thesis in practice.

Somasegar also joined UiPath’s board of directors in September 2024, serving on the Nominating and Corporate Governance Committee. UiPath (NYSE: PATH), a leader in enterprise automation software, said in a statement following his death: “Soma joined the UiPath Board of Directors in September of 2024 and quickly became a trusted advisor and leader.”

The Mentor Behind the Scoreboard

Investment returns tell one part of Somasegar’s story. The mentorship is harder to quantify but was described in dozens of tributes Tuesday as the more lasting part of his impact.

It’s hard to articulate how much of an impact Soma had on @aarthir and me. He spotted us out of under grad, made sure we got our first jobs, spent time with us though he was a senior executive at Microsoft and we were random junior people and showered us with kindness. We genuinely wouldn’t have the lives and careers we have now without him.

Sriram Krishnan, entrepreneur and White House AI adviser, wrote that on X after news of Somasegar’s death spread Tuesday. Manuela Papadopol, executive director of the Microsoft Alumni Network, said Somasegar had been her mentor and advisor for years, calling him someone who “embodied the very best of Microsoft.”

Microsoft CEO Satya Nadella, who first met Somasegar at the company in the early 1990s, called him “a remarkable leader who helped grow and shape Microsoft’s developer ecosystem, and a dear friend and colleague that I valued greatly.” Their friendship, built over more than 30 years, ran well beyond professional collaboration. Nadella and Somasegar co-owned the Seattle Orcas cricket franchise together, and their families had grown close across those decades. “Soma was there for us during some of the toughest moments in our lives, always with quiet strength, kindness, and a sense of steadiness we depended on,” Nadella said.

Matt McIlwain, Madrona managing director, said in the firm’s in-memoriam statement for Somasegar that the focus was on supporting Somasegar’s family, the Madrona team, and the broader Microsoft and startup communities that had known him. “Soma was beloved by so many people in all aspects of his life, and he had such a generous spirit for helping others,” McIlwain said.

Recognition and Life Beyond Software

Anna University, his undergraduate alma mater, awarded Somasegar an honorary doctorate in 2006 for his contributions to technology and computer science. Two years later, the Chinese Institute of Engineers USA named him Asian American Engineer of the Year. Both came during a stretch of his career when he was running one of the most widely used developer toolsets in the world. Outside the office, his commitments stretched to sports (co-owner of the Seattle Orcas alongside Satya Nadella and other tech leaders, and a part-owner of Seattle Sounders FC), philanthropy (he helped lead a Madrona-organized effort during the pandemic that raised more than $25 million for the All In Seattle homelessness relief campaign in King County), and women’s education globally. His family directed remembrances to the YWCA King County and the UN Foundation.

His name appeared on the SEED 100 list the same week it appeared in an obituary. The gap between those two facts is the measure of the loss.