Senior Full-Stack Engineer

Prediction markets are one of the most accurate forecasting tools ever invented, but they've been locked behind clunky interfaces and regulatory barriers. We're changing that.

Kash lets anyone create and use prediction markets directly through social platforms. See a debate on Twitter? Create a market. Want to make a prediction with your take? Post it. AI handles market creation and resolution, users just interact naturally.

Twitter is live. More are coming. We're a small, high-intensity team building at the intersection of social, crypto, and AI.

We're a small founding team with backgrounds at hedge funds, investment banks and more.

We've built and scaled ecosystems, shipped DeFi security research, and designed products used everyday.

We know what we're doing, and we're looking for engineers who do too.

We're hiring a Senior Full-Stack Engineer as one of our first engineering hires. You'll work across our TypeScript monorepo (30+ event-driven microservices) and Next.js webapp, owning features from concept to production.

This isn't a cog-in-the-machine role. You'll have real ownership, direct impact, and the autonomy to make decisions. We move fast, but we care about craft. Quality matters.

“AI-driven development is non-negotiable. You need to be proficient with Cursor and Claude Code.”

In your first 90 days

• Ship integrations for new platforms
• Build user-facing features that drive engagement and volume
• Hunt down bugs and improve system reliability
• Get deep into our event-driven architecture and start improving it

Ongoing

• Own features end-to-end: build, test, deploy, monitor
• Scale infrastructure as traffic grows
• Improve developer experience and system observability
• Work async with a distributed team

Backend

• TypeScript, Node.js 22+
• 30+ containerized microservices with event-driven architecture
• AWS: ECS, SQS, EventBridge, DynamoDB, S3, PostgreSQL

Frontend

• Next.js 15, React 19
• Tailwind CSS v4
• TanStack Query, Zustand

Nice-to-have experience

• Blockchain: EVM multichain, Wagmi, Viem, smart contracts, account abstraction
• AI: Multi-agent systems, LLM orchestration, intent parsing

Non-negotiable

• Cursor + Claude Code proficiency – This is how we build.
• Fast learner – You master new domains in days, not months
• Ship, ship, ship – You bias toward action
• System architect mindset – You design and scale distributed systems from scratch

Should also have

• 7-10+ years of software engineering experience
• Expert-level TypeScript
• Containerization fluency – Docker, ECS, orchestration
• Strong product instincts – you care about UX
• Clear async communication – writing over meetings
• High autonomy – you don't wait for instructions

• EVM blockchain experience – multichain, smart contracts, wallets, on-chain execution
• AI/LLM systems – multi-agent architectures, RAG, embeddings, prompt engineering
• Prediction markets, trading systems, or fintech background
• Open source work we can look at

• Ground floor – You're joining as one of the first engineers
• Tokens, not just salary – Competitive pay plus meaningful token allocation
• Inflection point – Every feature you ship has outsized impact
• Shape everything – From technical architecture to product direction, your voice matters

• All-In Intensity – We're not here to coast
• Degen Energy – Bold, unconventional, high-energy
• Intelligence > Credentials – We don't care where you went to school
• Async-first – Written communication, minimal meetings
• Move Fast – Ship quickly, iterate on feedback
• Quality Obsessed – Speed without slop
• Autonomy & Ownership – Own it end-to-end

1. Intro call – Quick chat to learn about you and share more about Kash
2. Culture conversation – Deep dive on how you work and what you're looking for
3. Take-home project – Small async coding exercise
4. Technical interview – Architecture, problem-solving, code review
5. Final conversation – Meet the team, ask anything

Expect the full process in 2-3 weeks.