Engineering

Senior Full-Stack Engineer

Senior Full-Stack Engineer

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.

Engineering

Remote

Full time

About Kash


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.


The Team


We're a small founding team with backgrounds at hedgefunds, 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.


The Role


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. These aren't optional nice-to-haves—they're how we work. If you're not already shipping 10x faster with AI, you won't be competitive here.


What You'll Work On


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


Tech Stack


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


You Should Have


These are non-negotiable:

  • Cursor + Claude Code proficiency – This is how we build. If you're not already shipping with AI-native tools, you'll fall behind.

  • Fast learner – You master new domains in days, not months. Blockchain, AI, infrastructure. You figure it out.

  • Ship, ship, ship – You bias toward action. Done beats perfect. You iterate in public.

  • System architect mindset – You design and scale distributed systems from scratch, not just implement specs.


You 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


Bonus Points


We don't expect deep specialization in all of these—but fluidity matters. You should be comfortable diving into unfamiliar territory and getting productive fast.


  • 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


Why Join Now


  • Ground floor – You're joining as one of the first engineers. The decisions you make will shape the product and architecture for years.

  • Tokens, not just salary – Competitive pay plus meaningful token allocation. You're building something you'll own a piece of.

  • Inflection point – We're at the stage where every feature you ship has outsized impact. This is the fun part.

  • Shape everything – From technical architecture to product direction, your voice matters. No layers of approval.


Culture


  • All-In Intensity – We're not here to coast. This is a startup.

  • Degen Energy – Bold, unconventional, high-energy. We have fun.

  • Intelligence > Credentials – We don't care where you went to school. Show us what you can build.

  • Async-first – Written communication, minimal meetings, respect for deep work.

  • Move Fast – Ship quickly, iterate on feedback.

  • Quality Obsessed – Speed without slop. High bar for everything.

  • Autonomy & Ownership – Own it end-to-end. No micromanagement.


Interview Process


  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 (respect for your time)

  4. Technical interview – Architecture, problem-solving, code review

  5. Final conversation – Meet the team, ask anything

Expect the full process in 2-3 weeks.


Details


  • Location: Remote (MST/Mountain to Western Europe timezones)

  • Compensation: Competitive salary + tokens

  • Start: We're actively interviewing. ASAP for the right person