Careers at HolyPoly

We are looking for a Full-Stack Engineer to own product surfaces end-to-end: from our Next.js dashboard and leaderboard to the bot control experience and payment flows. You will work closely with backend and data to ship features that traders rely on daily.

What you'll do

• Design and implement new features across the HolyPoly web app (Next.js, React, TypeScript)
• Build and maintain API routes, server actions, and integrations with Stripe and Supabase
• Improve performance, accessibility, and responsiveness of core user flows
• Collaborate on technical decisions and contribute to our design system and patterns

What we're looking for

• Strong experience with TypeScript, React, and modern Next.js (App Router, server components)
• Solid understanding of REST/API design, auth, and server-side rendering
• Comfort with SQL and working alongside backend/data systems
• Interest or experience in fintech, prediction markets, or crypto is a plus

We're hiring an ML / AI Engineer to design and productionize models and signals that power our leaderboard, playbooks, and future automation. You'll work with real trading and market data and help shape how we use LLMs and statistical methods to surface edge for our users.

What you'll do

• Develop and maintain ranking and scoring models for traders and wallets (PnL, win rate, consistency)
• Build and iterate on playbook-generation and signal pipelines used by the product
• Explore and integrate LLM tooling for summarization, extraction, and user-facing AI features
• Work with the data and backend teams to define schemas, APIs, and SLAs for model inputs and outputs

What we're looking for

• Experience shipping ML models or data science pipelines in production (Python or TypeScript)
• Familiarity with time-series, ranking, or recommendation problems; experience with financial/trading data is a plus
• Interest in LLMs, RAG, or agent-style tooling and ability to prototype and evaluate quickly
• Strong communication and documentation habits in a small team

We need a Data Engineer to own the pipelines that feed our leaderboard, playbooks, and bot: market data, wallet activity, and derived metrics. You'll ensure data is reliable, timely, and queryable so the rest of the team can build on a solid foundation.

What you'll do

• Design and operate real-time and batch pipelines for Polymarket and related market/wallet data
• Maintain and evolve our Postgres schemas, indexes, and query patterns for analytics and product
• Monitor data quality, latency, and cost; improve backfills and failure handling
• Work with backend and ML to expose clean interfaces (APIs, views, events) for downstream consumers

What we're looking for

• Hands-on experience with event streams, ETL, and relational databases (Postgres preferred)
• Comfort with time-series or financial-style data and idempotent, resumable pipelines
• Proficiency in at least one of: TypeScript/Node, Python, or SQL-heavy workflows
• Experience with crypto or prediction-market data sources is a plus