Senior Backend Engineer

Location: US or Europe (Must have solid overlap with EST)

Remote | Full-time

Compensation: $150K - $200K

Our client is an industry-leading DeFi organization building the next generation of trading infrastructure. Operating as the largest builder-code product on a major decentralized exchange protocol, the company has processed over $65B in cumulative trading volume and generated eight-figure revenue over the past year. With a user base exceeding 400,000 registered traders, the platform is at the forefront of democratizing access to global financial markets across crypto, equities, and commodities.

The organization operates as a lean, highly technical team of individual contributors who prioritize autonomy, ownership, and rapid execution. This environment is designed for a Senior Backend Engineer who thrives in 0-to-1 environments and is capable of building ambitious systems from the ground up. This role is central to scaling trading interfaces that manage billions of dollars in daily volume while maintaining high-speed, intuitive user experiences.

Key Responsibilities

Senior Backend Engineer

Location: EMEA / EU Hours - Authorised to work in EMEA

Remote | Full-time

Compensation: €90K - €130K

Our client is a high-growth fintech leader specializing in simplifying multi-chain DeFi for traditional financial institutions, fintechs, and service providers. By offering a unified API, the platform provides seamless access to on-chain liquidity across all major blockchains for optimized same-chain and cross-chain swaps. The organization is on a mission to enable a fairer, decentralized world while prioritizing exceptional user experiences to make complex technologies accessible to a global audience.

The organization is seeking multiple Senior Backend Engineers to lead the design, development, and maintenance of robust, scalable, and secure backend systems. Reporting to the Backend Lead, the successful candidates will collaborate with cross-functional teams— including frontend developers, product managers, and designers—to deliver high-quality software solutions. The technical environment utilizes a modern stack including Node.js (TypeScript), MongoDB, Redis, and ethers.js, supported by a GitOps CD chain involving Kubernetes and AWS.

Key Responsibilities

Staff Mobile Engineer

Remote | Full-Time | Engineering

Compensation: $180K - $250K

We are hiring on behalf of our client, the largest ecosystem builder on a leading decentralized perpetual exchange, currently building the next generation of DeFi trading. Their mission is to democratize access to global financial markets—including crypto, equities, and commodities—by leveraging decentralized technology. To date, their platform has processed $65B+ in cumulative trading volume, generated eight figures in revenue, and supports over 400,000 registered traders.

They are a small, elite team of individual contributors who value autonomy, ownership, and rapid execution. They are looking for a Staff Mobile Engineer who views React Native as a craft. You will sit at the intersection of engineering, design, and product, turning raw speed into a premium mobile experience that feels intentional and indistinguishable from a native app.

Key Responsibilities:

Backend Engineer (Hyperliquid Focus)

Location: Remote (EMEA Region Only) Type: Full-Time

Compensation: €90K - €130K

We are hiring on behalf of our client who are on a mission to simplify multi-chain DeFi for financial institutions, fintechs, and service providers. Their team is building a unified infrastructure layer that provides seamless access to on-chain liquidity across all major blockchains, enabling high-performance same-chain and cross-chain swaps. They are a passionate, remote-first team dedicated to making complex decentralized technologies accessible and building a fairer, more transparent world.

They are looking for a Backend Developer with a deep interest in the Hyperliquid ecosystem to join their engineering team. This is a pure backend role—no frontend or design work is required. You will focus on building the infrastructure that allows them to distribute programmatic trading features (such as TWAP and perps) to the broader DeFi ecosystem.

Location Note: This position is strictly open to candidates currently located in the EMEA region.

What you’ll do:

Data Scientist (Full-Stack / Generalist)

Location: Remote / Flexible Type: Full-Time

Compensation: Competitive

We are seeking an experienced, versatile Data Scientist who thrives in a fast-paced startup environment. In this role, you will have the freedom to identify high-impact opportunities, design and implement technical solutions, and measure their success across our global product suite.

We value generalists over specialists. The ideal candidate has broad experience across the entire data science lifecycle rather than deep expertise in just one niche. You should be proactive, self-motivated, and comfortable taking initiative to find problems worth solving. At our firm, you aren't just a number; you maintain ownership of your projects from initial conception to final implementation.

What You'll Do:

Data Scientist - Consumer Product Optimization

Location: New York City, London (Office)

Compensation: $250K - $300K

We are seeking an experienced, versatile Data Scientist to join our team, which is focused on a fast-paced consumer-facing product within the fintech or equivalent industry. This is a high-autonomy role where you will have the freedom to identify opportunities, design and implement solutions, and measure their impact across our entire product suite.

We value generalists who possess breadth across the data science field and thrive on end-to-end ownership. You will collaborate with cross-functional teams while driving projects independently from conception to completion.

The Data Scientist will be responsible for leveraging data to drive product decisions, optimize user experiences, and uncover strategic opportunities for growth.

Junior Data Analyst (Product Focus)

Location: London, New York City (Office)

Compensation: $175K - $225K + Tokens/Equity

We are seeking a motivated Junior Data Analyst who is eager to learn, grow, and make a significant impact in a fast-paced environment at the intersection of consumer technology and next-generation finance. In this role, you will play a crucial part in supporting data initiatives across our product, helping various teams make informed decisions through clear analysis, reporting, and insight generation.

You will work closely with senior data staff while gradually taking on more ownership as you develop your skills in a supportive, high-autonomy environment.

As a Junior Data Analyst, you will support critical data initiatives, translating raw data into actionable insights that directly influence product strategy and user experience. You will be instrumental in tracking key performance indicators (KPIs) and uncovering opportunities for growth and optimization.

eJam is in search of a talented and detail-oriented User Interface Designer to elevate one of our e-commerce brand's digital presence. If you have a flair for creating compelling visuals and a knack for social media trends, we want you on our team!

Founded in 2017, eJam is a direct-to-consumer brand incubator; focused on creating products that people love. Today, we own and operate a portfolio of brands with products that put you first. We take a unique approach to each brand and every product, making sure that we are fulfilling a real need while helping to shift the status quo.

This is an excellent opportunity for a highly motivated individual, eager to excel in a fast-paced and growth-centric setting. We're looking for someone who understands graphic design best practices, is deadline-oriented, and detail-focused, and has thrived in a remote role.

Protocol Backend Engineer - Stablecoin Platform

Location: North American-based candidate only

Remote | Full-time

Compensation:  $180K - $220K

Join a stablecoin platform for builders, providing a superior digital-dollar building block that allows developers to create and customize their own stablecoins in minutes. This platform enables businesses to monetize digital dollar use cases and maintain control over their money tech stack without operational heavy-lifting, offering features like custom branding, compliance behaviors, and yield distribution mechanics.

We are hiring on behalf of a company who is seeking an experienced Protocol Backend Engineer. In this role, you will enhance the growing set of $M Extensions projects, support partners' technical teams, improve existing products, and create and maintain comprehensive documentation.

Key Responsibilities

Protocol Integration Engineer - Stablecoin Platform

Location: Preference for EST-based candidates

Remote | Full-time

Compensation: $170K - $180K

Our client is a pioneering stablecoin platform designed specifically for builders and developers. The platform empowers users to create customized stablecoins in minutes by extending a superior digital-dollar building block. This framework allows businesses to monetize digital dollar use cases and maintain full control over their financial technology stack—customizing branding, compliance behaviors, and yield distribution mechanics—without the burden of operational heavy-lifting.

The organization is seeking an experienced Protocol Integration Engineer to join its growing team. This individual will play a vital role in enhancing a growing set of extension projects, providing technical support to partner engineering teams, improving existing products, and maintaining comprehensive technical documentation.

Key Responsibilities