FullStack Engineer (FinTech / AI-Infrastructure)

Location: New York City (Office)

Compensation: $130K - $185K

We are the developers of a pioneering yield-bearing synthetic dollar backed by AI infrastructure assets. Our platform allows emerging AI cloud providers to efficiently finance GPU expansion by leveraging income-generating hardware as collateral. By combining deep underwriting expertise with transparent, on-chain infrastructure, we provide flexible, non-recourse financing to AI operators and sustainable, yield-bearing opportunities to capital providers.

We are an extremely flat, Series A-funded organization backed by top-tier investors like Dragonfly, DCG, and Nascent. Our team draws experience from leading institutions such as DRW, Deutsche Bank, and Nansen. We have no middle managers and move quickly from idea to execution.

We are looking for a high-agency FullStack Engineer to help us build the next generation of financial products. You will gain true ownership over our suite of web products, influencing the design and execution of everything from transactional interfaces to data-heavy analytics dashboards.

Foundation Director (AI-Backed Synthetic Stablecoin)

Location: Remote

Compensation: Competitive

We are the architects of a pioneering yield-bearing synthetic dollar backed by high-performance AI infrastructure assets. By leveraging income-generating hardware (GPUs and NeoCloud compute), we deliver stable, predictable yield to participants with the transparency of decentralized finance. Our protocol provides a differentiated solution for capital seeking sustainable, risk-adjusted returns and serves as a flexible, non-recourse financing engine for the high-growth AI infrastructure sector.

As the Foundation Director, you will be a high-agency leader responsible for supporting, promoting, and scaling this ecosystem. Your role is twofold: driving strategic business development across the Web3 and AI infrastructure landscapes, and overseeing the critical service providers that manage our protocol's reserve and market operations. You will work at the intersection of DeFi market structure and the physical AI compute layer to ensure the Foundation executes with reliability, credibility, and institutional rigor.

Overview

Established in 2006, Union Maritime has experienced rapid growth to become an international shipping group with offices in 3 continents and is at the forefront of the maritime industry, offering our customers cutting-edge transportation and logistics solutions.

We constantly push the boundaries of what is possible, leveraging the latest technologies and industry’s best practices to deliver unparalleled efficiency and reliability. Whether it's our innovative approach to cargo handling or our use of data analytics to optimise routes and logistics, we are dedicated to staying ahead of the curve.

We have a diversified vessel portfolio in the tanker and dry bulk sectors with a strong presence in clean products and light chemical market, a revenue in excess of $500m and a fleet of circa 80 vessels under management.

At Union Maritime, we don't just meet the needs of our customers; we anticipate them. Join us on the cutting edge of maritime innovation and experience the Union Maritime difference.

Role summary

The Administrative Assistant plays a key role in supporting the daily operations of Abbey Real Estate’s Athens office. The role ensures smooth coordination between internal teams, tenants, service providers, and external partners, maintaining high standards of professionalism and attention to detail.

Junior Full Stack Engineer

Location: New York (Office)

Onsite | Full-time

Compensation: Competitive

Our client is a high-performance technology development firm responsible for building and operating the foundational infrastructure behind the world’s most active digital asset launchpads. The systems managed by this organization are defined by ultra-low latency, high throughput, and constant high-concurrency load. This is a mission-critical environment where technical precision is paramount, and the impact of every deployment is immediate.

The organization is seeking an exceptional Junior Full Stack Engineer to join an elite team of builders. This role offers the opportunity to work on production systems operating at massive scale, providing hands-on responsibility and a rapid feedback loop. The team is composed of high-caliber engineers who value clarity of thought, code quality, and execution speed. This position is ideal for an early-career engineer who is intellectually rigorous, possesses high agency, and is eager to solve ambiguous, technically challenging problems from first principles.

Key Responsibilities

Staff Backend Engineer: High-Frequency Trading Systems

Location: Remote - Fully remote in Asia

Compensation: $70K - $80K

We are a high-growth fintech powerhouse operating at the intersection of Prediction Markets, AI, and Blockchain technology. With over $200M in annualized volume and a 100% weekly growth rate, we are rapidly redefining how decentralized markets operate. We are backed by world-class investors, including CMT Digital and AllianceDAO, the premier accelerator for the crypto and AI ecosystem.

We are seeking a Staff Backend Engineer to own and scale the low-latency, high-throughput systems that sit directly in our trade execution path. This is not a "standard" backend role; you will build performance-critical infrastructure where micro-optimizations, architectural correctness, and extreme reliability are the difference between success and failure. You will work in a high-stakes environment where your code manages real money and real volume every second.

Responsibilities

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.

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

Network Infrastructure Engineer - AI Data Platform

Location: Hybrid - Ashburn

Compensation: $125K - $150K

Join a lean, technical team building the critical infrastructure that delivers massive amounts of web data to companies training the world’s most powerful AI models. The client operates a vast distributed crawler, granting unique access to high-quality public web data at a global scale. Their work involves building advanced pipelines for ingesting, segmenting, and annotating billions of videos, transcripts, and audio files, directly powering dataset creation for frontier AI labs.

The client is looking for a talented Network Infrastructure Engineer with significant experience in infrastructure and network architecture design. You will be responsible for building and maintaining the robust physical and cloud infrastructure that powers their AI-driven platform. Your work will directly impact the efficiency, security, and performance of our systems at massive scale.

This role requires deep expertise across network architecture, physical deployment, cloud services, and automation (Infrastructure as Code).

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.