The Trade Desk said on November 3 that it had brought back Dave Pickles, the co-founder who ran its technology for 13 years before stepping down as chief technology officer in 2023, to establish and lead a new CTO Council with direct input into the company's core technology and product roadmap. According to the company, the council's remit covers technology strategy, architectural direction, operational excellence and engineering investment, with agentic capabilities and AI-powered advertising workflows named as priorities. The announcement arrives six days before The Trade Desk reports third-quarter results it has guided to at least $650 million, roughly 12% below the same quarter of 2025. It gives Pickles no title beyond the council, no reporting line and no start date.

In Short

The Trade Desk, a company whose software lets advertisers buy ads on websites, apps and streaming TV, has asked the engineer who co-founded it and ran its technology for 13 years to come back and help decide what it builds next. It comes as the company's sales are forecast to shrink for the first time since it listed on the stock market, after many ad buyers struggled with its main buying tool. What actually changes is still unclear, because the company has not said how much say his new group will have over the engineers and product managers who run the platform now.

What The Trade Desk announced

The announcement, issued through Business Wire and datelined Ventura, California, carries the headline "The Trade Desk Strengthens Leadership Bench, Expands Engagement with Dave Pickles." Its first sentence describes the move differently. According to The Trade Desk, Pickles "is returning to the company in a newly expanded technology leadership capacity."

That capacity takes the form of a new body. Pickles will establish and lead a CTO Council that, according to the company, will partner with its engineering and product teams "to provide direct guidance on the company's core technology and product development roadmap." The company lists four areas of focus: "aligning technology strategy, architectural direction, operational excellence, and key engineering investments - including agentic capabilities and advanced AI-powered advertising workflows." It also says Pickles "will help shape the next generation of The Trade Desk platform."

Jeff Green, founder and chief executive, supplied the first of two quotes. "I'm so excited Dave is back. I've missed working with him," Green said. "We've had so many successes together over the years, and I'm energized to take all of that history and point it toward the future. This is a pivotal crossroads for our company and the industry."

Pickles' own statement credits the people already in place. "I'm thrilled by all the progress our engineering and product teams have made in recent years," he said. "The foundation here is strong, and I'm excited to support the team and help guide them through a new era of rapid change and opportunity." Support and guidance, rather than command, is the language throughout.

The release describes the moment as "an exciting time of growth and technological evolution for The Trade Desk," and says the return amplifies "the company's engineering rigor as the platform tackles its next wave of scale." The company's own forecast for the quarter that ended on September 30 points the other way: revenue down by about 12% year over year.

What the announcement leaves open

The release is five paragraphs long, and most of the questions an investor or a client might ask sit outside it. It does not say who else will sit on the CTO Council, how many members it will have, whether they are employees, outside advisers or both, or whether the council's guidance binds anyone. It names no current engineering or product executive. It says nothing about compensation or equity.

Adweek, whose reporter Trishla Ostwal covered the move, listed further gaps. According to Adweek, the company did not say whether Pickles is returning full time, whether he will rejoin the board, whether he will hold an officer title, or how the council will divide authority with the engineering and product leaders already in charge. The Trade Desk declined to comment on those points and pointed to its announcement, according to the same report.

The headline's choice of "expands engagement" over "returns" has a plain explanation. Pickles never fully left.

Thirteen years as CTO, three as an adviser

The Trade Desk said on August 30, 2023 that Pickles would step down as chief technology officer on September 29 of that year and would also leave the board, which he had joined in February 2021. He would remain a long-term adviser to the company, according to that release. Over the two preceding years, the release said, he had handed day-to-day leadership to Sairaj Uddin, then senior vice president of engineering, and Gruia Pitigoi-Aron, then senior vice president of product, both reporting to Green. No single successor as CTO was named. Adweek reports that Pickles has remained an adviser since.

On November 3, his LinkedIn profile still gave his title as advisor at The Trade Desk, a position it lists as full-time and dates to October 2023. The same profile dates his CTO tenure from June 2010 to September 2023, preceded by four months as vice president of engineering from March 2010.

Green and Pickles founded the company in 2009, according to both the 2023 release and Adweek. Before that, Pickles worked at AdECN, an ad exchange that Microsoft acquired, where he led the team that built its real-time bidding exchange, according to Adweek. His profile places him at Microsoft from March 2008 to March 2010, latterly as a development lead, and before that at CallWave, an internet telephony company, where he spent most of the previous decade in software engineering and database administration.

Adweek's account of what followed is brief. The Trade Desk went public in 2016, reaching a market capitalisation of $1.1 billion on its first day, on a bet that the open web would hold its ground against the walled gardens. Pickles, Adweek wrote, ran the company's technology "through most of the climb that followed." The scale of that climb is on record: revenue rose from $202 million in 2016 to more than $2.9 billion in 2025, figures Green cited in September in the email announcing job cuts. In March, Green said the platform weighs about 20 million ad impression opportunities every second and takes bidding decisions in 10 milliseconds or less, during the interview in which he confirmed a closed beta for building campaigns through Claude. That is the system Pickles' council will now advise on.

The company he is rejoining

Adweek describes the return as coming "amid the worst stretch in its history as a public company." The company Pickles is rejoining, Adweek wrote, "has slowing revenue growth, partners pushing back on its products, and a stock sitting 91% below its peak."

The figures behind that description are recent. On August 6, The Trade Desk reported second-quarter revenue of $715.1 million, up 3% from $694.0 million a year earlier and $37.61 million below the $752.61 million analysts had expected. It guided third-quarter revenue to at least $650 million, against $739 million in the third quarter of 2025. Shares fell 24.22% after hours to $13.39. If the guidance holds, the quarter would be the company's first year-over-year revenue decline as a public company, according to Adweek.

Cuts followed within a month. On September 4, about 575 jobs went, roughly 15% of a workforce of 3,843 at the end of 2025. The same day, S&P Dow Jones Indices said The Trade Desk would leave the S&P 500 for the S&P SmallCap 600, with Illumina taking its place before the market opened on September 21. The company had joined the index on July 18, 2025.

Leadership has turned over in parallel. In June, The Trade Desk named Nate Olmstead, formerly of Penguin Solutions and Logitech, as its fourth chief financial officer in about 14 months, effective July 9. Laura Schenkein had left in August 2025 after more than a decade; Alex Kayyal departed after five months in January; Tahnil Davis served on an interim basis. Two directors resigned in March, triggering a Nasdaq noncompliance notice before the board added David Haddad, a former Warner Bros. Games president, in June.

Engineering has had its own departures. Jud Spencer, the company's lead engineer for more than 12 years, left in November 2025, and no successor was named when The Trade Desk cut 39 jobs during an all-hands meeting a month later. That restructuring came a year after what the company called its biggest reorganisation, in December 2024, which split engineering into about 100 scrum teams.

The next test is fixed. The Trade Desk will release third-quarter results after the market closes on Monday, November 9, and hold a conference call at 2:00 p.m. Pacific time, according to the company.

Kokai, Koa and the agentic roadmap

The release names one technology area explicitly: agentic capabilities and AI-powered advertising workflows. That is where The Trade Desk's product has been most contested.

Kokai, the AI-centred buying platform, was unveiled on June 6, 2023, while Pickles was still CTO. His departure was announced 12 weeks later. Adweek dates the launch to "around the time Pickles left," which leaves open how much of Kokai's design and rollout belongs to his tenure and how much to his successors.

The rollout was not smooth. A fourth-quarter 2024 revenue miss was partly attributed to slower-than-expected Kokai adoption, and in March 2025 Bill Simmons, a former vice president of product, left amid public scepticism about the platform. By August 2025, The Trade Desk was restricting new campaigns on Solimar, its older interface, with more than 70% of client spend already running through Kokai. One trader quoted in that period complained of falling conversions and erratic CPMs. In September 2025, the company removed Kokai's periodic table, its signature screen, from advertiser and campaign views, keeping it only at ad group level.

A discrepancy over Kokai's fate

Adweek's report states that advertisers frustrated with Kokai moved millions of dollars in ad spend to Amazon, "and the company later sunsetted Kokai." The second half of that sentence does not match the public record. The interface The Trade Desk phased out was Solimar, and the Kokai feature it partly retired was the periodic table. Kokai itself remains the company's buying platform. Almost all clients were running on it by February 2026, and Kokai Zuma, released on August 27, 2026, is an update to Kokai rather than a replacement. On October 20, Netflix and The Trade Desk said advertisers buying Netflix inventory through Kokai would gain more than four million data segments from November. Adweek's key takeaways, which the outlet labels as generated by AI and reviewed by its newsroom, also refer to "the Kokai platform's demise."

The movement of spend to Amazon is better documented. In June 2025, Adweek reported that a global auto brand had moved approximately $80 million in annual media spend from The Trade Desk to Amazon's platform by the end of the first quarter. Needham & Co. put the fees on Amazon's demand-side platform at about 1%, against 12% to 15% at The Trade Desk. A year later the pressure had moved into AI, with rivals wrapping guaranteed deals in agentic tools at fees around 1%. Green dismissed those approaches on the second-quarter call as resembling the ad networks of 2006.

Koa and the agents

The Trade Desk's own agentic AI work runs through Koa, its AI layer since 2018. Koa Agents shipped on April 22, 2026, with Stagwell as the pilot partner. When Zuma arrived in August, the company said an upgraded optimisation model had cut cost per acquisition by an average of 32% across 62 campaigns compared with the previous model. That figure comes from The Trade Desk and has not been independently verified. At the Zuma launch, a conversational Koa assistant was still in closed beta with no general availability date. The Claude-based campaign building Green confirmed in March was likewise a closed beta.

These are the "agentic capabilities" the release puts inside the council's remit. Whether Pickles' role is to accelerate them, audit them or restructure the engineering behind them, the announcement does not say.

Pressure from outside

Not every technical problem is internal. When iOS 27 shipped on September 14, Safari began blocking adsrvr.org, The Trade Desk's core ad request and delivery domain, along with the domain used by Unified ID 2.0. On October 5, an Apple engineer asked The Trade Desk to test an iOS 27.2 beta build that may change the block. The WebKit bug tracking the issue was still open, with no published outcome, and Apple's notes for Safari 27.2 did not mention the block. Neither the November 3 release nor Adweek's report mentions Safari.

Why this matters for marketers

For agencies and advertisers buying through The Trade Desk, the CTO Council's remit is the part of the company they touch every day: the buying interface, the optimisation models and the AI tools now being placed between traders and campaigns. The Kokai migration showed what happens when that roadmap moves faster than its users. Buyers reported lost conversions, unfamiliar controls and time spent relearning a tool; some moved budgets elsewhere. A co-founder with direct input into that roadmap is, at least on paper, a change in who shapes it.

How much of a change is the open question. The release describes guidance and support. It does not describe authority, and Adweek reports that the company declined to say how the council will divide decisions with the engineering and product leaders already in place. A returning founder can add continuity to a company that has lost its long-serving lead engineer, two chief financial officers and about 15% of its staff in little over a year. He can also add another layer above the people who have run the platform since 2023, whom the release does not name.

The timing invites a reading the company has not offered. The November 3 announcement precedes, by six days, results for a quarter that, on the company's own guidance, would show its first year-over-year revenue decline as a public company, by Adweek's account. Green's description of "a pivotal crossroads for our company and the industry" is the closest the release comes to explaining why now. The November 9 call is the first scheduled occasion for executives to say more about what Pickles will do, and whether the council changes anything that buyers on the platform will notice.

For the wider programmatic market, the move signals where The Trade Desk is placing its bet: on engineering and on agentic buying, the same ground on which Amazon and smaller rivals are competing on price. The independent buying platform built its case for a decade on technology rather than owned inventory. Bringing back the engineer who built much of that technology is consistent with that case, though it does not by itself answer the fee and performance questions that drove budgets away.

Timeline

Summary

Who: The Trade Desk, the Ventura, California-based demand-side platform, and its co-founder Dave Pickles, who served as chief technology officer from 2010 to 2023 and has been an adviser since. Chief executive Jeff Green and Pickles are quoted in the announcement. Adweek reported on the move.

What: Pickles returns in what the company calls a "newly expanded technology leadership capacity," establishing and leading a new CTO Council that will give direct guidance on The Trade Desk's core technology and product roadmap, including agentic capabilities and AI-powered advertising workflows. The company has not said whether he is full time, whether he will hold an officer title or board seat, who sits on the council, or how its authority relates to current engineering and product leaders.

When: The announcement was made on November 3, 2026, six days before The Trade Desk reports third-quarter results on November 9. Pickles stepped down as CTO on September 29, 2023.

Where: The announcement was distributed through Business Wire and the company's investor relations site from Ventura, California. The council's work concerns The Trade Desk's global buying platform, Kokai.

Why: The Trade Desk gives no reason beyond Green's description of "a pivotal crossroads for our company and the industry." The move comes after second-quarter growth slowed to 3%, guidance pointed to a roughly 12% revenue decline in the third quarter, about 575 jobs were cut, the company left the S&P 500, four people held the CFO role in about 14 months and its lead engineer of more than 12 years departed.