Senior Firmware Engineer (Blockchain Hardware)

Location: Based UTC -9 and +1

Compensation: $120K - $165K

We are looking for a Senior Firmware Engineer to develop, design, and optimize firmware for our cutting-edge cryptocurrency hardware wallets. In this role, you will be at the intersection of high-stakes security and embedded systems, collaborating closely with hardware and software teams to deliver secure, reliable, and highly efficient firmware solutions.

You will be responsible for the "brain" of our devices, ensuring that our users' digital assets are protected by battle-tested code. From architecting multi-threaded applications to ensuring seamless hardware-software compatibility, you will play a vital role in maintaining and improving both current and next-generation security devices.

Key Responsibilities:

Chief of Staff

Location: New York (Office)

Compensation: $150K - $200K

We are the pioneers behind a high-performance Layer 1 blockchain that is setting a new global standard for scalability. By re-engineering the most widely adopted execution environments in Web3, we provide decentralized applications with the performance of Web2 combined with the sovereignty of Web3.

We are seeking a highly strategic and operationally adept Chief of Staff to serve as a direct partner to our executive leadership. This role goes far beyond administrative support; you will be a trusted advisor and core team member with broad visibility into our highest strategic priorities. As we enter a pivotal stage of growth, you will be the "operational glue" that drives execution, ensures organizational alignment, and translates high-level vision into measurable outcomes.

This position is based in New York City and requires a strong on-site presence.

Talent Acquisition Specialist (Sourcing)

Location: New York (Hybrid)

Compensation: Competitive

We are a core contributor to a high-performance Layer 1 blockchain, the first to offer parallelized EVM execution designed to scale with the demands of the modern industry. Our team is composed of veterans from Google, Goldman Sachs, Robinhood, Nvidia, and Databricks, all dedicated to onboarding the next billion users onto a vibrant ecosystem of decentralized applications.

Backed by over $30M from top-tier investors—including Jump Crypto, Multicoin Capital, and Coinbase Ventures—we are looking for our first Talent Acquisition Specialist to help us build the most talent-dense engineering team in Web3.

Reporting directly to the Head of Talent, this is a high-impact, high-autonomy role designed for an ambitious recruiter who wants to shape the hiring strategy of a scaling startup. This is not a passive role; you will be on the front lines, engaging the pinnacle of engineering talent for highly technical roles that are critical to our success.

Key Responsibilities:

Product Designer (New Initiatives)

Location: New York (Office)
Compensation: $120K - $180K

We are a core contributor to the first parallelized EVM Layer 1 blockchain, engineered to scale Web3 applications to the level of performance seen in traditional Web2 environments. Our team is composed of veterans from Google, Goldman Sachs, Robinhood, and Nvidia, all dedicated to onboarding the next billion users onto a high-performance digital ecosystem. Backed by $30M from top-tier investors like Jump Crypto, Multicoin Capital, and Coinbase Ventures, we are scaling rapidly and looking for a Product Designer to help bring early-stage ideas to life.

This role sits at the critical intersection of brand, product, and marketing. You will be the primary driver for defining the first visual expression of new initiatives—taking a concept from a "loose idea" to a polished, compelling reality. You’ll thrive here if you are comfortable with ambiguity and love the challenge of building "Version 1" of a project.

Key Responsibilities:

Senior Rust Engineer (Solana/DeFi)

Location: Remote (CET +/- 4 hours) Type: Full-time

Compensation: $72K - $90K

We are a stealth-stage DeFi Trading & Intelligence platform dedicated to the Solana ecosystem. We are building the critical infrastructure required for sophisticated on-chain decision-making—ranging from real-time signals and smart money tracking to enterprise-grade fraud detection. Our platform delivers high-fidelity on-chain analytics through a high-performance API. We are a small, fast-moving team tackling the most challenging problems in blockchain data. As a Senior Rust Engineer, you will play a pivotal role in architecting systems that process millions of Solana transactions in real-time.

This is an early-stage startup environment. We are looking for an engineer who thrives on high ownership, fast iteration cycles, and the opportunity to ship code that immediately impacts production environments. If you are passionate about building high-throughput infrastructure and solving "hard" data problems, we want to hear from you.

Responsibilities

Senior Full Stack Engineer (Fintech & Rewards)

Location: Remote / Flexible (US & Global) Type: Full-time

Compensation: $150K - $190K

We are building the next generation of global payment infrastructure. Our mission is to make stablecoins and digital assets usable in the real world by powering card transactions, cross-border payments, B2B purchases, and remittances. We partner with leading fintechs, neobanks, and institutions to launch inclusive, borderless financial solutions. Backed by top-tier investors including Sapphire Ventures, Norwest, Galaxy Ventures, and Lightspeed, we are a lean, "mighty" team of veteran founders and passionate builders. We operate with an open, flat structure where every team member has the freedom to explore ideas and directly impact our product roadmap.

As a Senior Full Stack Engineer, you will be a core member of the team building our rewards and co-brand platform. You will maintain and expand third-party rewards programs—largely in conjunction with major league sports partners—and embed new payment solutions into these applications. We are looking for a candidate who wants to take true ownership of the tech stack governing our co-branded payment ecosystem.

Responsibilities

Senior Data Engineer (Monitoring & Parameter Systems)

Location: Porto, Portugal (Full-Time)

Category: Engineering / Data Science

Compensation: $140K - $300K

We are on a simple mission: to make it possible for anyone with a digital wallet to trade stocks, commodities, currencies, and crypto with full transparency. We are replacing the opaque, offshore brokerage model with a transparent, permissionless trading stack built entirely on-chain. Every trade, deposit, and withdrawal on our platform is verifiable through open, auditable code.

To date, we have raised $27.9M+ from top-tier investors including General Catalyst, Jump, Susquehanna (SIG), Alliance DAO, and Balaji Srinivasan.

We are seeking a Data Engineer (Monitoring & Parameter Systems) to architect and operate the analytics, observability, and parameter-proposal infrastructure that keeps our protocol safe and economically sound. You will serve as the critical bridge between protocol mechanics—such as fees, spreads, and liquidations—and production-grade data systems. Your mandate is to translate complex economic models into reliable pipelines and monitoring services that ensure the protocol remains healthy across all markets.

Responsibilities

Solana Program Engineer

Location: New york

Compensation: $350K - $500K

We are a team of elite builders and high-growth developers moving at the speed of the most active markets in the world. As core contributors to one of the largest crypto social networks globally, we are redefining the intersection of social engagement and decentralized finance.

We are looking for a Solana-focused Frontend Engineer to play a critical role in building and scaling cutting-edge platforms at the forefront of SocialFi. You will work across web and mobile, delivering high-performance, user-centric applications in an environment where speed, ownership, and innovation are paramount. This isn't just a UI role; you will bridge the gap between complex on-chain logic and seamless user experiences, ensuring our infrastructure handles high-velocity interactions with ease.

Responsibilities

Product Marketing Manager (Stablecoin & Fintech)

Location: Remote (Global) / NYC-Hybrid Preferred

Type: Full-Time

We are a mission-driven fintech firm on a quest to transform how money moves globally. We believe that stablecoins are the future of financial infrastructure—faster, more open, and more efficient than the siloed systems of today. Backed by world-class investors like Paradigm and Dragonfly, we are building a full-service platform that makes issuing, managing, and integrating digital dollars seamless for developers and institutions alike.

As our Product Marketing Manager, you will be the critical bridge between our engineering team and our users. This is a strategic, hands-on role that owns the full customer lifecycle. You aren't just a marketer; you are a storyteller and a trusted advisor who shapes how the world discovers our products, how customers are onboarded, and how they grow with us over time.

Key Responsibilities

Full Stack Engineer (Web3/DeFi)

Location: Remote Type: Full-Time

Compensation: $150K - $250K

We are a venture-backed fintech lab building the next generation of on-chain investing. Our platform is dedicated to long-term, diversified portfolios and automated rebalancing, bringing the safeguards of traditional finance to the world of DeFi. We aim to abstract away the complexities of blockchain, making it possible for anyone to invest in real-world assets (RWAs), stocks, and bonds fully on-chain.

With over 75,000 users already on board and backing from industry leaders like a16z CSX, Coinbase Ventures, and Uniswap Ventures, we are scaling rapidly. We are looking for a Full Stack Engineer to join our lean, high-throughput team. In this role, you will play a critical hand in developing our flagship product, touching every layer of the crypto stack—from backend infrastructure to front-end Web3 UX.

Key Responsibilities