Smart Contract Engineer (Rust) - High-Performance DeFi Infrastructure

Location: PST-CAT preference

Compensation: Competitive

We are building the next generation of Decentralized Finance (DeFi) liquidity infrastructure on the Solana blockchain. We are solving a critical industry problem where reliance on over-collateralized lending leads to inefficient capital use, fragmented systems, and unnecessary liquidation risks.

Our solution introduces under-collateralized borrowing, programmable margin accounts, and composable on-chain strategies ("Recipes"), all built with high-performance Rust smart contracts. We are redefining how liquidity moves in DeFi: faster, safer, and more capital-efficient.

We are looking for a highly capable Smart Contract Engineer (Rust) to join our core engineering team and shape the technical backbone of our protocol. You will design, build, and optimize Rust-based smart contracts that power our DeFi infrastructure, working closely with product and protocol teams to create scalable, secure, and innovative financial primitives.

As a core contributor, you will take full ownership of your work, from concept and research to mainnet deployment and maintenance.

Senior Full Stack Engineer - Decentralized Finance Security

Compensation: $144K - $164K

Location: United States (Remote or Brooklyn, NYC Office)

We are seeking a proactive and results-driven Senior Full Stack Engineer to join our team, which is building the first automated, on-chain economic security system for leading crypto protocols. Our platform helps optimize risk management and capital efficiency while safeguarding user funds for protocols managing billions of dollars in assets.

You will report directly to the Oracle Team Lead and play a critical role in developing data-driven dashboards and tools to support risk analysis. You will collaborate closely with research and protocol teams to deliver high-quality frontend and backend components that power crucial protocol security insights.

This role requires a high degree of ownership and technical expertise across the full stack.

Senior Frontend Engineer - High-Performance Financial Platform

Location: New York City (Office)

Compensation: $185K - $250K

Join the Product & Platform team at a high-growth crypto derivatives exchange that is rapidly capturing market share in a multi-billion dollar annual sector. We are focused on building cutting-edge blockchain-backed financial products, starting with a multi-asset margin feature that will allow users to post variable forms of collateral. This feature is vital, as multi-asset margin comprises over 86% of accounts in the crypto industry.

You will play a key role in building and maintaining the applications that power our services. You will collaborate closely with designers, backend engineers, and product managers to deliver responsive, accessible, and high-performance user interfaces that bring complex financial tools directly to our users.

The Senior Frontend Engineer will be responsible for the full lifecycle of application development, focusing on performance, user experience, and real-time data visualization.

VP of Business Development, Africa - Blockchain Wallet Infrastructure

Location: Nigeria or South Africa (Remote-first, Office Optional)

Compensation: $80K - $120K

Join a stellar team of leaders and experts in blockchain technology, cryptography, infrastructure, and security to build the backbone of wallet infrastructure for the next financial era. We are hiring a VP of Business Development to spearhead our regional expansion and establish our company as the trusted partner for financial institutions and fintechs across African markets.

Reporting to the Head of Americas, you will own the go-to-market strategy in Africa, driving revenue, building strategic partnerships, and guiding clients through the deployment of our cutting-edge wallet platform inside their existing systems. This role demands a powerful blend of strategic leadership and hands-on enterprise sales execution.

As the senior representative in Africa, you will blend high-level strategy with execution, focusing on accelerating market penetration and securing complex enterprise accounts.

Senior Data Scientist – DeFi Economic Risk & Security

Location: Remote - Preference is in Europe to overlap 5hours with EST timezone

Compensation: $130K - $150K

Join a pioneering company that provides the first automated, on-chain economic security system for crypto protocols. Our platform is trusted by leading DeFi protocols, collectively securing and managing billions of dollars in assets, by utilizing world-class custom EVM simulations to optimize risk management and capital efficiency. This is a high-impact role at the intersection of quantitative finance, data science, and decentralized technology.

As a Senior Data Scientist, reporting directly to the Head of Economic Risk & Strategy, you will be a critical driver of our modeling capabilities and data insights across the decentralized finance ecosystem. You will lead innovative research to understand market actor behavior and model these dynamics within our advanced simulation platform.

Your Mission & Responsibilities:

Founding Full-Stack / iOS Engineer – Accountability Protocol

Location: Remote - U.S. Timezones (NYC Office)

Compensation: $140K - $200K

Join a dynamic early-stage team building an innovative accountability protocol that sits at the intersection of consumer technology and blockchain. Our mission is to leverage phone and wearable data as an oracle to enable users to stake money on personal goals, creating powerful "commitment contracts." This is a unique opportunity to secure a founding-level seat and drive the technical direction of a high-impact consumer product.

As the Founding Full-Stack Engineer, you will be responsible for accelerating the buildout of our core consumer-facing product: a beautiful, fast, and highly reliable native iOS application. This app uses blockchain rails behind the scenes to power our innovative accountability system.

Your Mission & Responsibilities:

Senior Accounting Manager - Foundational Finance for the Future of Money

Location: New York City (Hybrid)

Compensation: $140K - $175K

We are building a foundational platform designed to transform how value moves globally, focusing on creating a new, efficient financial fabric underpinned by programmable digital dollars. We are a mission-driven company, backed by world-class investors, dedicated to driving the adoption of trusted, accessible, and utility-focused on-chain value.

The Senior Accounting Manager will be a critical hire, reporting to the Director of Finance and taking ownership of key financial operations, specifically bridging traditional accounting discipline with the evolving world of digital assets. You will serve as the primary controller for digital asset accounting, manage relationships with external accounting partners, and lead crucial regulatory reporting submissions.

This role requires a hands-on approach and significant ownership, ideal for a professional eager to shape processes and build scalable financial systems from the ground up within a fast-paced, high-growth startup environment. You will partner closely with engineering, operations, and compliance teams to ensure accurate financial records, timely reporting, and strong internal controls.

Key Responsibilities:

Senior Haskell Developer - Traditional Fintech

Location:  UK and EU
Compensation: Up to $50/hr

We are a well-established, non-crypto fintech company with a substantial and complex codebase, seeking a talented Haskell Developer to join our large internal development team. This is a full-time position open to residents of the UK and EU.

You will be joining a core team responsible for maintaining, evolving, and architecting our large-scale financial applications. This role is highly focused on production-grade Haskell development within a traditional financial services environment.

Key responsibilities include:

Core Protocol Developer - Leading DeFi Innovator

Location: Remote - Candidates must be located in an American timezone (this includes North and South America)

Compensation: $120K - $200K

We are a mission-driven team dedicated to simplifying decentralized finance (DeFi) and making sophisticated yield opportunities accessible globally. We translate complex financial strategies into intuitive, one-click products for users and institutions.

As a Core Protocol Developer, you will serve our community and decentralized autonomous organization (DAO), working collaboratively across the full stack. This is a role for a highly motivated, versatile software development specialist with deep expertise in DeFi and smart contract development.

What You'll Be Building:

• Next-Generation DeFi Primitives: Creating innovative products like Leverage Tokens (ERC-20 assets bundling complex actions) and automated strategy Vaults for efficient capital management.
• Protocol Mechanism: Implementing and maintaining core staking and governance features that drive long-term protocol health.

Mobile Engineer (Flutter/Dart) - Decentralized Trading Platform

Location: Remote - US or Europe remote. Must overlap with ET by 4 hours.

Compensation: $140K - $300K

We are a well-funded, innovative financial technology company on a critical mission: to enable anyone with a digital wallet to trade stocks, commodities, currencies, and crypto with unprecedented transparency. We are replacing the opaque, offshore brokerage model with a transparent, permissionless trading stack built entirely on-chain. Every transaction, deposit, and withdrawal is verifiable through open, auditable code. We have secured significant backing from top-tier institutional and crypto-native investors.

We are seeking a highly proficient Mobile Engineer to own and build our native mobile trading experience from the ground up. You will use Flutter and Dart to deliver a high-performance, cross-platform application (iOS and Android) that adheres to strict architectural standards and seamlessly integrates with our on-chain protocols.

Responsibilities: