Senior Infrastructure Engineer - High-Performance Blockchain Services

Location: New York, San Francisco (Office)

Compensation: $200K - $400K

Join the Infrastructure & Platform team at a high-growth crypto derivatives exchange that is rapidly capturing market share in a multi-billion dollar annual sector. Our clients current focus is on building a multi-asset margin feature that leverages blockchain technology to allow users to post variable forms of collateral, which is essential as multi-asset margin comprises over 86% of crypto accounts.

You will play a pivotal role in designing, architecting, and deploying highly reliable, scalable blockchain services with lightning-fast performance. You will lead the development of mission-critical core infrastructure that powers their products, enabling them to bring financial venues directly to the user.

The Senior Infrastructure Engineer will be responsible for building the core components of a high-throughput, low-latency distributed system, focusing heavily on performance and cryptographic integrity.

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

Location: Remote USA - NYC preferred - (NOT PST) and Europe, but must have a 5+ hour overlap with EST timezone for this role

Remote | Full-time

Compensation: $144K - $164K

Our client provides the first automated, on-chain economic security system designed to enable crypto protocols to optimize risk management and capital efficiency while safeguarding user funds. By analyzing protocol mechanics and scenario implications through world-class custom EVM simulations, the platform provides actionable insights trusted by leading decentralized finance (DeFi) protocols to secure billions of dollars in assets.

The organization is seeking a proactive and results-driven Senior Full Stack Engineer to join the Oracle Team. Reporting directly to the Oracle Team Lead, the successful candidate will play a critical role in building data-driven dashboards and infrastructure to support risk analysis. This role requires close collaboration with research and protocol teams to deliver high-quality frontend and backend components that power essential security insights across multiple blockchains.

Key Responsibilities

Senior Frontend Engineer - High-Performance Financial Platform

Location: New York, San Francisco (Office)

Compensation: $185K - $300K

We are hiring on behalf of our client who are building a revolutionary Multi-Asset Margin solution for one of the fastest-growing ecosystems in decentralized finance. Currently, the crypto derivatives sector generates $20B–$30B in annual revenue, and multi-asset margin accounts for over 86% of all trading activity. Their mission is to bridge the gap between diverse collateral types and high-performance trading.

Their platform allows users to post variable forms of collateral without needing to sell their assets for stablecoins. By building sophisticated blockchain-integrated systems "under the hood," they extend liquidity to the venues of their users' choice, bringing the market to them rather than forcing them to navigate multiple fragmented platforms.

As a member of their Product & Platform team, you will build and maintain the applications that power these services. You will collaborate closely with designers, backend engineers, and product managers to deliver responsive, high-performance user interfaces that define the future of DeFi trading.

The 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:

Who are we?

SupportYourApp is a global Support-as-a-Service leader, partnering with tech companies and industry leaders like MasterCard, Calm and MacPaw in 30+ countries since 2010 to deliver secure customer and technical support. We operate globally, supporting clients in 60 languages across diverse industries. So what if you had a chance to be a part of the world’s leading SaaS, software, or hardware solutions?

Join our community as an AML Transaction Monitoring & EDD Specialist today and thrive in a multicultural and multilingual environment while enjoying your home office. Unlock your potential by mastering new skills and achieving challenging goals in cooperation with our People First management approach. Excited? Let’s see what it takes.

What you will do:

• Monitor and analyze crypto transactions using tools like Chainalysis, Elliptic, TRM Labs
• Identify suspicious activity, patterns, and anomalies
• Collaborate with internal teams on investigations and risk assessments
• Stay current on crypto compliance trends and regulations
• Maintain clear records and reports to meet audit standards
• Conduct EDD on high-risk clients and transactions
• Ensure accuracy and compliance in due diligence reviews
• Become a product expert and constantly grow

What you need to succeed in this role:

Founding Full-Stack Engineer (iOS & Web3)

Location: New York (Hybrid)

Compensation: $170K - $220K

We are building a first-of-its-kind accountability protocol designed to bridge the gap between social coordination and blockchain technology. We are looking for an exceptional Founding Full-Stack Engineer to lead the development of our consumer-facing native iOS application.

In this role, you won't just be executing tickets; you’ll have a "founding-level" seat at the table, working directly with our co-founders (alumni of Apple, Google, Dragonfly, and Arbitrum) to shape the product's DNA. You will be responsible for shipping high-quality, production-ready Swift code and designing the backend infrastructure that makes complex on-chain interactions feel invisible to the end user.

Key Responsibilities:

Senior Accounting Manager - Foundational Finance for the Future of Money

Location: Remote - Based in the Tri State area

Remote | Full-time

Compensation: $140K - $175K

Our client is a high-performance financial technology firm backed by world-class investors, including Paradigm and Dragonfly. The organization is dedicated to transforming the global movement of value by building next-generation stablecoin infrastructure. By combining the discipline of institutional finance with the agility of a crypto-native startup, the firm is creating a programmable and efficient financial fabric for developers, fintechs, and global institutions.

The Senior Accounting Manager will serve as a foundational member of the finance team, reporting directly to the Director of Finance. This role is responsible for bridging traditional accounting practices with the evolving digital asset landscape. The successful candidate will own key aspects of financial operations, manage external accounting partnerships, and serve as the primary controller for digital asset accounting. This is a high-impact, hands-on position ideal for a technical expert eager to build scalable systems and internal controls from the ground up in a fast-paced environment.

Key Responsibilities

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.