Senior Full Stack Engineer

Location: Remote - Based in NY

Remote | Full-time

Compensation: $175K - $225K

Our client is a venture-backed financial technology firm on a mission to transform the global movement of money. By building a full-service platform for the issuance, management, and integration of stablecoins, the organization aims to provide a faster, more efficient, and more transparent financial fabric. The platform makes digital dollars programmable, composable, and ubiquitous, serving as foundational infrastructure for developers, fintechs, and institutions alike.

The engineering team combines the discipline of high-performance finance with the creative agility of a crypto-native startup. As a Senior Fullstack Engineer, the successful candidate will take end-to-end ownership of features and products across the entire stack—from user interfaces to robust backend infrastructure. This role requires an engineer with strong product taste, a bias toward MVP thinking, and the ability to navigate complex backend systems and API designs with equal proficiency. This is a remote-first position. C

Key Responsibilities

Senior Web3 Software Engineer

Location: Europe/US/Latam

Remote | Full-time

Compensation: $170K - $195K

Our client is a pioneer in the blockchain sector, developing a high-performance operating system designed to redefine scalability and throughput for Ethereum. By combining parallel transaction execution with advanced state minimization, our client’s platform overcomes traditional protocol limitations to provide a groundbreaking environment for decentralized development.

Since its initial launch in 2019, the organization has remained dedicated to enhancing Ethereum's ecosystem through technical innovation, including the creation of a bespoke virtual machine and a specialized programming language. The team is a globally dispersed group of innovators committed to shaping the future of blockchain technology through secure, decentralized, and high-throughput solutions.

Our client is seeking a Senior Web3 Software Engineer to lead the development of high-performance decentralized applications (dapps). This individual will own major product surfaces end-to-end—from frontend interfaces to on-chain integrations—collaborating across product, design, and smart contract teams to deliver secure and intuitive experiences for traders and users.

Key Responsibilities

Senior Software Engineer

Location: US or EU (remote-first, office optional). Must be in the US, not Canada or in the European Union. France or Paris or as close as possible, always preferred.

Remote | Full-time

Compensation: $160K - $240K

Our client is an industry-leading organization comprised of experts in blockchain technology, cryptography, infrastructure, and security. The organization is currently developing the foundational wallet infrastructure for the next generation of global finance.

The Senior Software Engineer will design, develop, and scale core backend services for a high-performance platform. This role involves full ownership of critical projects—ranging from APIs and microservices to databases and developer tooling—ensuring all systems remain fast, reliable, and secure. Beyond hands-on engineering, this individual will contribute to architectural decisions, refine development processes, and ensure infrastructure resilience under real-world financial workloads. This position requires close collaboration with product, security, and leadership teams to transform complex requirements into elegant, production-ready systems.

Key Responsibilities

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

Location: San Francisco, CA, US

On-site | Full-time

Compensation: $170K - $230K•0.15% - 0.30%

A high-growth, venture-backed startup based in San Francisco is seeking an ambitious Full Stack Engineer to join their engineering-driven team. This is a role for an individual who thrives in high-stakes, fast-paced environments where code deployed one night is demoed to thousands the next morning.

Our client provides an agentic Operating System for sales that closes the loop between coaching and execution. Having recently secured a $15M Series A and experiencing 5x ARR growth year-over-year, the organization is scaling rapidly. The engineering culture is defined by radical ownership, speed, and technical excellence. The team is composed of former founders and high-achievers who prioritze impact over process.

This role is strictly on-site five days a week in San Francisco. It is designed for an engineer with "something to prove" who is looking to operate with massive autonomy during a period of hyper-growth.

Key Responsibilities

Location: San Francisco or worldwide

On-site/Remote | Full-time

Compensation

• Full Stack Engineer (remote Worldwide) -$100K – $180K • 0.05% – 0.25%
• Full Stack Engineer (Onsite in San Francisco) - $140K – $200K • 0.05% – 0.25%
• Senior Full Stack (Remote in the US) - $180K – $250K • 0.05% – 0.25%

Our client is a high-growth security startup building the open-source infrastructure used by developers worldwide to manage sensitive configurations and credentials. Backed by premier Silicon Valley investors, the company is on a mission to simplify security for the AI era, currently supporting billions of secure transactions every month.

The team are seeking an exceptional Full Stack Engineers and Senior Full Stack Engineers to join the team. In this role, you will work closely with the CTO to build, optimize, and expand the foundation of a global security platform. This position is ideal for an engineer who wants to be a defining piece of a team scaling toward massive market adoption over the next 18 months.

Key Responsibilities

Front End Engineer (Product Engineer)

Location: New York, NY

On-Site | Full-time

Compensation: $200K/yr - $325K/yr

Our client is a high-growth fintech firm building the next generation of trading and portfolio management technology. Founded by industry veterans from top-tier quant shops, the organization has secured over $100M in funding to rethink how financial institutions manage trillions in assets. The core product suite handles everything from high-throughput market data to complex portfolio optimization. Our client is looking for a driven Engineer to help build the performant, data-rich interfaces that power these mission-critical workflows.

You will own the user experience for platforms that handle massive data scale and complex financial operations. This isn't just about building "dashboards"—it's about engineering intuitive interfaces for real-time position tracking, smart order routing, and high-cardinality optimization.

Key Responsibilities

Design Engineer

Location: Based in San Francisco or North or South America

Onsite or Remote | Full-time

Compensation

• Design Engineer (Onsite in San Francisco) - $140K – $200K • 0.05% – 0.25%
• Design Engineer (remote in the Americas) - $100K – $180K • 0.05% – 0.25%

Our client is a high-growth, venture-backed organization building a generational open-source security infrastructure platform for the AI era. Trusted by engineers at world-class companies such as Hugging Face and LG, the platform manages billions of secrets, certificates, and credentials every month.

The engineering team are seeking talented Design Engineers based in either the Americas or San Francisco to own and elevate the user-facing experience of this rapidly growing platform. Our client views developer experience as a core product philosophy and obsesses over intuitive design and polished interfaces. This role is ideal for a deeply technical individual who possesses a sharp eye for aesthetics and the ability to build features end-to-end, with a heavy focus on frontend excellence (approximately 70%) and a supporting contribution to the backend (approximately 30%).

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

Frontend Software Engineer

Location: San Francisco

Hybrid | Full-time

Compensation: $160K – $300K • Offers Equity

Our client is a high-growth, venture-backed technology firm based in San Francisco that is revolutionizing the global research industry through AI-powered user interviews. By utilizing proprietary AI-moderated technology, the platform enables premier global brands to achieve deep qualitative insights at unprecedented speed and scale. Currently serving a roster of the world’s largest enterprises, our client is disrupting a $140B market by replacing slow, high-cost legacy services with high-performance automated solutions.

Following a breakout year characterized by 8x growth, the organization recently secured a $30M Series B funding round led by top-tier Silicon Valley investors. The engineering team is currently scaling its headcount to support the rapid adoption of AI-moderated research as the new industry standard. This is a high-impact opportunity for a Frontend Software Engineer to join a lean, elite team of 30 and take foundational ownership of the user-facing systems that define the product experience.

Key Responsibilities