Full Stack Software Engineer - Decentralized Trading Platform

Location: Remote - North America/South America only - (NYC or SF based candidates heavily preferred)

Compensation: $150K - $175K

Join an organization founded by former employees of a leading crypto exchange, backed by top-tier institutional investors from both traditional finance and crypto. We are building the leading trading and yield platform for Decentralized Finance (DeFi), bringing deep expertise in algorithmic trading and high-performance engineering to the space.

We are looking for a Full Stack Software Engineer excited by the opportunity to build cutting-edge, crypto-native technology. You will work across the entire stack, integrating multiple protocols and connecting with various blockchains. This is a pivotal role requiring an individual who thrives on end-to-end ownership and technical complexity.

This role involves end-to-end ownership of features on a complex trading backend designed to manage billions of dollars in crypto transactions, as well as the high-performance frontend interfaces.

Senior Data Engineer - AI-First Fintech Platform

Location: Remote - Fully Remote - Across Europe

Compensation: $120K - $140K

We are a rapidly growing fintech and crypto platform undergoing an AI-first transformation. We are seeking a strategic, high-impact, and high-ownership Senior Data Engineer to build the foundational data infrastructure that powers our cutting-edge AI features.

You will report directly to the CTO and work closely with our Machine Learning (ML) team to consolidate and govern our data ecosystem (including PostgreSQL, Kafka, BigQuery, and GCS) into a clean, governed, and ML-ready platform. Your contributions will directly enable critical AI functionality across our product suite.

This role is responsible for the end-to-end design, implementation, and governance of our core data platform, ensuring high performance and readiness for ML applications.

DevOps Engineer - Global Fintech & Digital Money Platform

Location: Remote - They would prefer people in NYC but will accept people in Europe or Puerto Rico

Compensation: $180K - $250K

Join a lean and mighty team of passionate builders and veteran founders, backed by top-tier investors in fintech and crypto. We are building a cutting-edge platform at the intersection of real-world payments and digital money, empowering the next generation of financial products globally.

We are looking for a DevOps Engineer to deliver massive impact by owning and scaling our critical infrastructure. You will be a key driver of the technical roadmap and architectural decisions for a product rapidly scaling to millions of end-users.

The DevOps Engineer will play a critical role in managing, scaling, and securing our multi-cloud infrastructure, ensuring rapid, reliable deployments for a high-performance financial product.

Lead Blockchain Payments Engineer - Fiat Ramps & Financial Infrastructure

Location: London

On-site | Full-time

Compensation: Competitive

Our client is an elite team of builders operating at the intersection of fintech and high-scale crypto infrastructure. As a high-growth software organization, the company is responsible for developing the technology behind some of the largest crypto social networks and digital asset launchpads globally. The organization is defined by a philosophy of extreme talent density, rapid iteration, and technical ownership.

The Lead Blockchain Payments Engineer (Fiat Ramps) will serve as a core architect of the firm's financial infrastructure. This role is responsible for designing and scaling the services that power seamless fiat-to-crypto flows, real-time risk decisioning, and immutable financial records. Based in London, this is a full-time, in-person position for an engineer who thrives in high-throughput, low-latency environments and is passionate about building the future of global value transfer.

Key Responsibilities

Payment Orchestration & Integrations

Trader Analyst - High-Performance On-Chain Market Maker

Location: Remote - Must be able to work PST hours - so preference is US/South America & New Zealand based candidates.

Compensation: $75K - $100K

We are hiring on behalf of our client, a stealth, on-chain, Solana-focused low-cap market maker: a private, tight-knit team obsessed with performance, precision, innovation, and absolute excellence. They operate fast, stay quiet, and execute aggressively. If you thrive in an elite environment where growth is earned, not given, you will fit in. The client is seeking a Trader Analyst to operate at the intersection of execution trading, liquidity strategy, and client advisory. This high-impact role balances direct client communication with hands-on, high-speed trading execution in low-cap crypto assets.

The Trader Analyst will be responsible for balancing key client-facing communication, strategic analysis, and disciplined trading execution in a fast-paced, 7-day market environment.

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 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.

Are you a driven communicator who loves creating conversations, uncovering opportunities, and opening doors for a global SaaS/IoT product?

Keycafe is seeking an Outbound Sales Development Representative to engage potential customers across the United States and Canada, introducing them to the capabilities of the Keycafe SmartBox. You’ll be at the front line of the sales organization — generating pipeline, qualifying prospects, and setting up Account Executives for success.

If you’re motivated, confident on the phone, highly organized, and ready to grow your career in a fast-moving international sales team, this role is for you.

What You’ll Do

• Proactively reach out to targeted prospects via outbound calls, emails, and multi-channel outreach.
• Qualify leads, understand pain points, and schedule high-quality meetings for Account Executives.
• Manage and nurture early-stage opportunities from first contact through handoff.
• Clearly articulate Keycafe’s SmartBox value proposition and how it solves operational challenges.
• Consistently meet and exceed weekly/monthly outreach and booking quotas.
• Collaborate with sales and marketing to refine messaging, targeting, and outreach strategy.
• Maintain accurate activity tracking and lead notes in CRM systems.

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