Varun Vummadi and Esha Manideep, both IIT Kharagpur graduates, turned down elite job offers and a Stanford PhD to build Giga, a San Francisco startup making AI voice agents for enterprise customer service. The company has raised $61 million in Series A funding led by Redpoint Ventures, with DoorDash already among its clients.

He Turned Down a Stanford PhD and a $525K Job. Now His AI Startup Is Worth Chasing.

Varun Vummadi had two offers most engineering graduates would take without hesitation: a PhD admit from Stanford University and a $525,000 job offer from an international high-frequency trading firm. He said no to both, according to a detailed founder profile published by Ascendants.

Instead, the IIT Kharagpur graduate spent 2023 building a company with his classmate Esha Manideep, who turned down a $150,000 systems engineering role at a major Indian HFT firm to join him. Three years later, that company, Giga, has closed a $61 million Series A round led by Redpoint Ventures, with participation from Y Combinator and Nexus Venture Partners, as first reported by Fortune. DoorDash is already a customer.

The story has drawn attention in India not just because of the funding number, but because of what the founders gave up to chase it.

Why Two Engineers Walked Away From Safe Careers

Vummadi and Manideep met as students at IIT Kharagpur, one of India's most competitive engineering schools. Both had a shot at conventional, high-paying paths after graduation.

They chose a third option instead. Giga started with one clear obsession: could AI finally fix the broken experience of calling customer care, according to the Ascendants profile. The founders have said the problem is a simple, expensive one — organisations globally spend billions on call centers every year, yet the customer experience is still broken, Vummadi said in a statement carried by Entrepreneur and VCCircle and cited by Ascendants.

What Giga Actually Does

Giga builds AI voice agents that handle live customer support calls for enterprises. Per Fortune's reporting, the company has built a unified real-time orchestration layer that manages listening, understanding, deciding how to respond, checking databases, and delivering an answer all at once.

Companies feed Giga their existing call transcripts and support policies, and the system uses that material to build its own support logic. Vummadi has said the company can deploy enterprise-scale AI support in less than two weeks, since clients can upload existing transcripts and policies that the system automatically builds into its framework.

The platform also works across languages. Vummadi has noted that many accent-related issues disappear when customers speak in their native language, calling multilingual support a powerful asset, and said the system stores user preferences over time so repeat interactions keep improving.

The company's biggest publicly named client so far is DoorDash, where, per Varindia, Giga's technology allows enterprises to upload existing transcripts, knowledge bases, and policy documents to build AI agents capable of handling live voice conversations across languages and channels.

The Funding Round

Giga's $61 million Series A was led by Redpoint Ventures, with Y Combinator and Nexus Venture Partners also participating, according to Fortune, which reported that the company's post-investment valuation was not disclosed. Some Indian outlets, including Entrepreneur India, have reported the raise in rupee terms at roughly ₹540 crore, with other reports placing it closer to Rs 580 crore depending on the exchange rate used at the time.

Satish Dharmaraj, managing director at Redpoint Ventures, has said the firm's interest goes beyond a single support product. Per Fortune, Dharmaraj said the team is building a foundational AI layer for customer voice, one that can understand nuance, reason about context, and scale with enterprise reliability.

Giga plans to use the new funding to expand its engineering team and deepen its presence in regulated industries such as healthcare and finance. For these sectors, Fortune reported that the company deploys its entire system on the client's own cloud infrastructure using open-source models, and Vummadi says Giga never has access to client data when deployed this way. In financial services, Giga is already being used to automate compliance processes such as flagging unusual transactions, with the AI reaching out to confirm the source of a transfer and maintain the paper trail regulators require.

Why Voice AI Is Getting Serious Investor Attention

Enterprise voice AI has become one of the more closely watched categories within the broader wave of generative AI startups, largely because customer support is both expensive and universal. As Varindia put it, Giga's raise marks a moment for the enterprise voice-automation sector, where deep AI, voice interaction, and enterprise workflow automation are becoming a serious battleground.

The category is also crowded, with a growing list of voice AI startups building similar infrastructure for enterprise support. San Francisco remains the default base for founders in this category, including many with Indian engineering backgrounds — access to specialized AI talent, proximity to major venture firms, and closeness to enterprise customers all make the city hard to avoid at this stage.

Why This Story Resonates Beyond the Funding Number

Giga's raise is a meaningful data point in a competitive market, but the reason the story has traveled is simpler: it's a clear example of two young engineers giving up conventional security for something uncertain, and having it work out early.

That narrative isn't unique to Giga. It reflects a broader shift among graduates from India's top technical institutes, where founding a startup is increasingly viewed as a legitimate first move straight out of college.

Key Takeaways

• Varun Vummadi turned down a Stanford PhD offer and a $525,000 trading job; co-founder Esha Manideep turned down a $150,000 role, to found Giga in 2023.

• Giga builds real-time AI voice agents for enterprise customer support, with DoorDash as a named client.

• The startup raised $61 million in Series A funding led by Redpoint Ventures, with Y Combinator and Nexus Venture Partners participating.

• Giga plans to expand into regulated industries like healthcare and finance using on-premise, client-controlled deployments.

• The story highlights a broader trend of IIT graduates choosing startup founding over traditional high-paying career paths.