Careers
Build the future of trading.
Prediction markets turn what people believe about the future into a live price, on elections, sports, the economy, the events that actually shape people's lives. We're building the intelligence and execution layer on top of them: one unified order book across Kalshi, Polymarket, Hyperliquid and beyond, with smart routing that sweeps the best price across venues, infrastructure built for high-frequency trading, and real signal on top. Two bets at once: that fragmented markets collapse into a single venue, and that this becomes a new way to read the world, markets as media, more honest than a headline because someone has money on it. Small team, early, moving fast.
QA Engineering Intern (AI Product)Trendline is a real-time terminal for prediction markets — one screen for live prices, order books, and charts across Kalshi, Polymarket, and other venues. Optimus is the analyst built into it. It answers plain-English questions from two sources: live market data, and years of historical data across every domain the markets cover — sports results, election outcomes, economic releases, past market prices.
Each source fails differently, and both look right when they fail. On the live side: a stale price quoted as current, or two similar markets confused. On the historical side: a record pulled from the wrong subset — home games when you asked about road games, a candidate's primary margin when you asked about the general. And between the two sits the hardest class: questions where the wording carries the meaning — markets that sound identical but resolve on different criteria, and an answer that's accurate for the question it heard rather than the one you asked. We're hiring someone whose whole job is finding these before users do.
3 months · $3,000 stipend · remote · flexible hours, judged on output.
Head of Growth, CryptoBring trading volume onto the platform. You'll build relationships with market makers and prop desks to deepen liquidity, and bring high-volume and institutional traders onto the venue. You already know the people worth calling — MMs, desks, active traders — and have a track record of turning those relationships into flow. Comfortable in the crypto trading world and fluent in how liquidity and spreads actually work.
Don't see your role? team@trendlinelabs.ai