SSenior Software Engineer | Full-Time | Remote
Plexus has partnered with a highly technical, early-stage company building at the intersection of DeFi, AI and on-chain trading infrastructure . They are looking for a Senior Software Engineer to work closely with the founder as a key technical hire, helping shape the architecture and build innovative products from the ground up.
This is a high-ownership role for an engineer who combines deep DeFi knowledge with strong full-stack capabilities and a founder’s mindset.
The Role
Design, build and ship new products, tools and infrastructure across the DeFi and on-chain trading ecosystem.
Develop scalable systems, with a strong understanding of underlying infrastructure, architecture and system interactions.
Work across the full stack, using technologies including Rust, React and TypeScript.
Explore and implement emerging technologies, including AI-native tools and workflows.
Take ownership of technical decisions and execution, working directly with the founder to turn ideas into production-ready products.
Stay at the forefront of developments in DeFi, blockchain infrastructure and modern software engineering.
Requirements
Extensive software engineering experience, with the technical depth to operate as a key engineering partner to the founder.
Strong proficiency in Rust and experience building production-grade software.
Comfortable working across the full stack, including React and TypeScript.
Deep understanding of DeFi, liquidity provision and on-chain financial systems.
Strong systems-thinking capabilities and an understanding of infrastructure-level architecture.
Previous experience in an early-stage startup or similarly high-ownership environment.
A proven ability to build products from scratch and operate independently in fast-moving environments.
An AI-forward mindset, with practical experience building AI-powered products, tools or workflows.
Nice to Have
Experience with Alchemy, Dune Analytics, Effect or Nix.
Background in DeFi protocols, liquidity infrastructure, trading systems or market-making.
Open-source contributions or a strong portfolio of technical projects.
Experience founding a company or working in a small, technically ambitious team.
What’s on Offer
The opportunity to work directly with the founder and influence technical and product direction.
Significant ownership over architecture, execution and new product development.
The opportunity to experiment with cutting-edge technologies across crypto and AI.
Full-time preferred, with potential flexibility for part-time engagement.
Competitive salary + potential equity, revenue share or performance-based incentives.