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

Location: Remote - European Based Candidates

Remote | Full-time

Compensation: Competitive

We are hiring on behalf of our client who is focused on building institutional-grade DeFi operations infrastructure. They are seeking a Senior Operations Engineer. This organization develops the systems, automations, and security layers required to make on-chain asset management reliable at scale. Operating across Ethereum, Arbitrum, and multiple other chains, the client manages vaults, multisigs, and treasury systems where precision is paramount.

This is not a "build-and-hand-off" role. The successful candidate will own the full lifecycle of critical automation infrastructure—from architecture and implementation to monitoring, failure handling, and continuous hardening. This individual will be responsible for the reliability, security, and observability of systems where the standard is absolute: operational errors result in real financial loss.

Key Responsibilities

Growth Lead

Our client is a premier prime broker for the Hyperliquid ecosystem, developing mission-critical infrastructure to facilitate institutional-grade algorithmic trading at scale. As the decentralized finance (DeFi) landscape evolves toward high-frequency and institutional requirements, our client provides the essential bridge for professional trading firms to access advanced on-chain liquidity.

The organization is seeking a Growth Lead to spearhead the expansion of its partner ecosystem, total value locked (TVL), and overall platform adoption. This is an end-to-end business development role designed for a high-agency individual who can navigate the complexities of institutional trading and the nuances of decentralized protocols. The successful candidate will be responsible for sourcing institutional users and building the strategic partnerships necessary to solidify our client's position as a market leader in the prime brokerage space.

Key Responsibilities

Head of B2B Sales & Business Development (Web3 / DeFi)

Location: Remote in EU

Remote | Full-time

Compensation: $50K - $70K

Our client is a high-performance DeFi Trading & Intelligence platform purpose-built for the Solana ecosystem. The organization delivers institutional-grade on-chain analytics, smart-money flow detection, social sentiment tracking, and fraud prevention via a sophisticated B2B API. Their technology processes hundreds of millions of blockchain transactions in real time, powering critical risk detection and market insights across fast-moving decentralized markets.

As tokenized real-world assets—including equities and commodities—increasingly migrate on-chain, our client is extending its intelligence stack beyond native crypto into the next generation of decentralized financial markets. To lead this expansion, the firm is seeking a hands-on, crypto-native Head of B2B Sales & Business Development to build the entire commercial function from the ground up. This is a "zero-to-one" leadership role with full ownership over go-to-market strategy, pricing models, and vertical expansion.

Key Responsibilities

Location: San Francisco

On-Site | Full-time

Compensation: $120K – $200K • Offers Equity

Job Description

Our client, a high-growth technology startup based in San Francisco, is seeking a highly organized and resourceful Chief of Staff to join the Operations department. This is a high-ownership, high-pace operator role designed for an individual who thrives on variety and is eager to understand the inner workings of a scaling company.

The Chief of Staff will act as a force multiplier for leadership, executing high-priority initiatives across recruiting, Go-To-Market (GTM) strategy, product, and general operations. This role is ideal for a "technical generalist" who enjoys automating manual processes and taking ambiguous problems from concept to completion.

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

Mobile App Engineer

Location: New York (Office)

On-site | Full-time

Compensation: $185K - $300K

Our client is developing a next-generation mobile trading platform designed to redefine the future of finance. Unlike simplified retail applications, this platform offers a full-featured trading experience, including live market data, complex order types, and multi-venue execution.

The Mobile Engineer will be responsible for bringing the power of professional trading terminals to a mobile form factor. The role involves tackling sophisticated engineering challenges, such as maintaining synchronized real-time price feeds and ensuring system performance remains stable during periods of high market volatility. This position is ideal for a developer who excels in high-bandwidth, in-person collaborative environments and is passionate about building ambitious systems from the ground up.

Key Responsibilities

AI Engineer - Pentesting Agent

Location: Preference for the UK or US

Remote | Full-time

Compensation: Competitive

Our client is the fastest-growing online cybersecurity training platform in the industry, currently serving more than 6 million users and over 1,000 global businesses, including government agencies and Fortune 500 organizations. With a significant initial investment, the organization is developing a fully autonomous AI pentesting agent designed to plan, exploit, adapt, and report with the speed and precision required for modern offensive security.

The team is seeking a talented AI Engineer to join a small, high-impact group dedicated to building this autonomous system from the ground up. This role is ideal for a deeply curious engineer with a passion for AI agents and a strong interest in the cybersecurity domain. The successful candidate will design the core logic of the system, shaping its reasoning, memory, and execution flows to handle complex offensive security tasks reliably.

Key Responsibilities

Strategic Mid-Market Account Executive

Location: San Francisco, CA, US

On-site | Full-time

Compensation: $240K - $280K OTE • 0.06% - 0.10%

A high-growth, venture-backed leader in the AI Sales Performance space is seeking a Strategic Mid-Market Account Executive to join their San Francisco headquarters. Following a breakout year that included a $15M Series A and consistent million-dollar ARR months, our client is defining a new category of sales technology that enables enterprise teams to practice, measure, and scale top-performer behaviors.

This is an elite sales environment where the current team is winning over 90% of competitive deals, often at significant price premiums compared to the market. This role is designed for a high-performing closer who is ready to transition into enterprise-level sales and contribute to a repeatable motion that has already seen existing executives surpass annual quotas well ahead of schedule.

This position is strictly on-site five days a week in San Francisco and offers the opportunity to work directly with the founding team during a period of rapid scaling.

Key Responsibilities