Latest Interviews

Scaling Culture | Jason Kilar, former Hulu CEO

Jason Kilar

Jason, a corporate culture expert with twenty years of scaling experience at Disney, Amazon, and Hulu, argues that organizational values must be codified into repeatable mechanisms to survive growth beyond fifty employees. He details how Disney relied on explicit behavioral modeling and dedicated training institutions, while Amazon utilized written leadership principles and tangible awards to dismantle bureaucracy and enforce "Disagree and Commit" protocols. Additionally, Jason explains how Hulu leveraged provocative cultural documents to repel misaligned candidates and rigorously terminated high performers who violated core tenets, demonstrating that good intentions alone cannot sustain culture at scale.

From Startup to Scaleup | Sam Altman and Reid Hoffman

Sam Altman, Reid Hoffman

Originating from a Stanford class led by Reid Hoffman and Sam Altman, this event synthesizes the core principles of "blitzscaling" to address how technology startups can rapidly expand while maintaining network effects and organizational coherence. Through discussions on YC's continuity fund and hiring hierarchies that prioritize values over specific skills, the gathering outlines strategies for managing the chaos inherent in growing from twenty to over 500 employees. The session concludes by defining the critical shift from early-stage intuition to structured communication and capital efficiency, emphasizing that sustainable scaling requires leaders to explicitly balance inefficient growth with eventual profitability.

The Technical Advisor for Silicon Valley on HBO: Ed McManus

Ed McManus, Craig Cannon

Former Yardsale founder Ed McManus served as a technical advisor for *Silicon Valley* Season 3, where he guided writers to ensure code accuracy and advocated for realistic infrastructure choices like AWS adoption. His consultancy enabled the production to craft a plausible "Middle Out" algorithm and navigate the "Anti-Entourage" narrative constraint of engineered failures while integrating viral audience interactions through active fictional GitHub profiles. Ultimately, McManus departed after the season to return to entrepreneurship, citing the show's bleak conclusion as a resonant parallel to his own post-exit experiences.

Hiring Engineers with Ammon Bartram

Ammon Bartram, Craig Cannon

Amon Bartram, co-founder of the engineering recruitment startup TripleByte, details a methodology that replaces generic interview formats with four distinct, data-driven assessments designed to eliminate noise and accurately match specific company needs with candidate skills. By analyzing over 2,000 interviews, his approach identifies how traditional whiteboarding and credential-focused screenings often fail to predict job success compared to practical coding, debugging, and system design tasks. The presentation concludes with actionable recommendations for reducing interviewer bias, such as standardizing evaluation criteria and avoiding hazing, while advising candidates to focus on breadth-first search fundamentals and high-volume practice to improve their hiring outcomes.

Ideas, Products, Teams, and Execution with Dustin Moskovitz (How to Start a Startup 2014: Lecture 1)

Dustin Moskovitz, Sam Altman

Led by Y Combinator President Sam Altman and 16 guest speakers from billion-dollar companies, this course delivers a data-backed curriculum for hyper-growth startups that emphasizes mission-oriented strategy over romanticized entrepreneurship. The curriculum defines success through a rigorous equation of idea, product, execution, and luck while warning founders to avoid ventures unless driven by an overwhelming compulsion to solve a specific problem. It details a ten-year path to market dominance that prioritizes building products loved by a small initial user base to trigger organic word-of-mouth growth before scaling.

Talks at GS – Dr. John J. DeGioia and Dr. Ruth Simmons: Confronting the Legacy of Slavery

Dr. John J. DeGioia, Dr. Ruth Simmons, Jack DeGioia

Georgetown University and Brown University have undertaken rigorous historical investigations that revealed their founding and financial stability were directly tied to the transatlantic slave trade and the sale of enslaved people. In response to these findings, Georgetown has initiated a renaming project to honor specific individuals from the 1838 sale, while Brown's leadership emphasizes that the legacy of slavery remains an active, unresolved force in contemporary society. Both institutions reject silence as a moral failure, positioning their transparency and ethical reckoning as essential models for addressing historical atrocities and their enduring social consequences.

How to Build an Exchange

Claudio, Ron, Pete

A US equities matching engine utilizes a deterministic, single-instance architecture to process three million messages per second while ensuring fair, latency-critical order execution across thousands of symbols. The system employs C++ and OCaml on a dedicated machine to replace complex distributed consensus with high-speed, single-threaded logic, allowing state machines to recover from failures within 30 to 60 seconds via message log replay. This design guarantees regulatory reproducibility and financial reliability by eliminating consensus overhead, enabling clients to achieve precise atomicity and global risk enforcement through simplified, high-throughput message sequencing.

Why Functional Programming Doesn't Matter

John Hughes, Tony Hoare

Jane Street, a high-frequency proprietary trading firm executing millions of daily trades, attributes its engineering success to OCaml's expressive static types rather than traditional functional features like laziness or strict purity. This type system enforces correctness by eliminating null pointer exceptions, forcing logic updates at compile-time to prevent bugs, and encoding business invariants to exclude impossible states. Consequently, the firm prioritizes predictable performance and verifiable clarity to protect its capital against errors, viewing advanced type systems as a more critical asset than higher-order functions or declarative purity.

Incremental

Sebastian

Sebastian, a developer at Jane Street, presents the Incremental library, a self-adjusting computation system that enables dynamic dependency graphs for high-performance trading, risk modeling, and user interfaces. The discussion details the library's eight-version evolution, which resolved critical memory leak and performance bottlenecks by replacing heap-based sorting with a partial order system and implementing explicit observer tracking. These architectural improvements, combined with GADTs and CPU cache optimizations, allow the system to execute minimal necessary updates while supporting complex dynamic graph topologies.

Drew Houston : How to Build the Future

Drew Houston, Sam Altman, Drew Haust

Drew Houston co-founded Dropbox in 2007 after Y Combinator rejected his initial venture, forming a partnership with Arash Todd to build a file-syncing service that validated market demand through a viral referral program. The company evolved from a storage tool into a collaboration platform by strategically pruning unsuccessful products like Carousel and Mailbox to focus on its core value proposition. Houston subsequently shifted his leadership style from technical coding to strategic management, utilizing insights from literature and advisors to navigate scaling challenges while maintaining a private status to avoid public market volatility.

MIT 6.S094: Deep Learning for Human-Centered Semi-Autonomous Vehicles

Researchers are collecting billions of high-speed video frames from semi-autonomous Teslas to train deep learning models that detect critical driver metrics such as body pose, gaze direction, and cognitive load. By shifting from fully supervised to semi-supervised annotation strategies, the team achieves an 84-fold reduction in human effort while accurately identifying micro-saccades and emotional cues to overcome current privacy and trust barriers. This data-driven approach aims to replace static crash test assumptions with dynamic occupant monitoring, ultimately enabling vehicles to adapt passive safety systems based on real-time human behavior.

Office Hours with Kat Manalac

Kat Manalac, Craig Cannon, Kat Mignolet

Y Combinator partner Kat Mignolet outlines critical strategies for global incubators, emphasizing wealth reinvestment models and local mentorship recruitment while detailing the firm's new transparent recommendation system. She advises founders to prioritize deep validation with 100 users over broad adoption, formalize co-founder equity agreements immediately, and leverage warm introductions for press coverage. The discussion further clarifies YC's fixed $120,000-for-7% equity deal structure and encourages failed alumni to reapply as their evolution is often recognized by investors.

Lessons From Doing YC Twice - Harj Taggar

Harj Taggar

Technical hiring marketplace TripleByte leverages a skill-based screening process for 15,000 engineers to match candidates with companies based on product-focused proficiency and cultural fit rather than traditional resume credentials. Founder Harj Taggar applies insights from his Y Combinator experience to advocate for live coding evaluations and deep domain expertise as primary filters for early-stage validation and successful fundraising. By prioritizing organic co-founder relationships and data-driven growth metrics over theoretical backgrounds, the platform addresses the shifting market demand for engineers who drive user growth and revenue impact.

Office Hours with Sam Altman

Sam Altman, Craig Cannon

This session outlines a B2B customer acquisition strategy where young founders leverage YC networks and peer-to-peer outreach to secure initial clients, while noting that non-technical leaders must compensate with product design and engineering proficiency. Discussion also covers critical career decisions, emphasizing the need for pre-deal operational autonomy during acquisitions and highlighting emerging high-impact sectors like AI, clean energy, and spatial computing as prime targets for new ventures. Additionally, the dialogue examines the limitations of equity crowdfunding and the specific advantages youth founders possess, such as stamina and risk tolerance, alongside the necessity of recruiting experienced advisors to balance operational gaps.

Q&A with YC Partners at Startup School SV 2016

Kat, Adora, Tim, Jaredy, Michael, Dalton, Kirsty

This event delivers a comprehensive strategic guide for startup founders, covering critical phases from immediate idea validation and co-founder selection to operational tooling and the YC application process. Key insights emphasize prioritizing genuine passion over impressiveness, balancing product perfection with growth based on specific retention thresholds, and leveraging community support rather than isolating oneself. The session concludes with logistical details for a reception in the sunken garden, offering a direct forum for continued dialogue with the YC partners and staff.