Senior Multichain Backend Web3 Engineer

Location: Remote - US/Europe/Latam/Dubai but must have 5hrs overlap with EST

Compensation: $150K - $200K

Join a well-funded, expert-led team building the foundational yield engine for the crypto economy. We are creating the unified layer that intelligently and continuously reallocates capital across Decentralized Finance (DeFi) protocols to maximize returns. This is a ground-floor opportunity to architect the transition to a multi-chain Web3 future.

This is a high-impact role with immense ownership over the most complex and critical aspects of our platform. You will be responsible for designing and building the scalable infrastructure required to connect and manage assets across various blockchain networks, ensuring security, reliability, and efficiency for all on-chain interactions. This role is ideal for engineers who thrive on technical problem-solving in a fast-paced, high-ambiguity environment.

Key Responsibilities & Impact:

Founding Solana Protocol Engineer Job Posting

Location: Remote - US/Europe/Latam/Dubai but must have 5hrs overlap with EST

Compensation: $150K - $200K

Join a pioneering team at the intersection of capital management and Decentralised Finance (DeFi). We are building the unified infrastructure layer that intelligently connects capital to the best risk-adjusted yield opportunities. Backed by premier crypto investors, this is a ground-floor opportunity to architect a foundational piece of the future financial ecosystem.

This is an opportunity for immense ownership, serving as the foundational engineer for a new, critical protocol on the Solana network. You will be responsible for designing, implementing, and taking full ownership of a core asset aggregation protocol from scratch. If you thrive on complex, ambiguous challenges and want to architect a fundamental piece of DeFi infrastructure, this role is for you.

Key Responsibilities:

GoMining is a global Bitcoin-powered fintech ecosystem building high-load financial products for users around the world.

We are looking for an experienced Node.js Developer who will strengthen our core backend team, work with high-intensity data flows, and help scale our financial infrastructure.

This role is ideal for someone with strong backend engineering experience in fintech, a deep understanding of product development, and the ability to deliver stable, secure, and scalable systems.

Responsibilities

• Develop and maintain backend services using Node.js with a focus on performance, reliability, and security.
• Implement new product features and integrate financial logic into existing services.
• Work with high-load systems, optimize application performance, and ensure stable service operation.
• Collaborate with product managers, QA engineers, and other developers to deliver end-to-end functionality.
• Integrate third-party APIs, PSPs, internal services, and crypto-related components.
• Write clean, maintainable, well-tested code following best practices and internal guidelines.
• Participate in architecture discussions and drive technical improvements across the backend stack.
• Support existing microservices, troubleshoot production issues, and contribute to automation and observability.

Requirements

Senior iOS Engineer (Mobile Lead, Web3 Focus)

Location: Remote - NY or CA preference - will consider US remote

Compensation: $250K - $375K

We are seeking a highly motivated and experienced Senior iOS Engineer to take the mobile lead role in shaping the user experience for an innovative, new asset layer and decentralized platform. This is a unique opportunity to drive the architecture, development, and evolution of our native iOS applications, focusing on delivering a simple, elegant, and trustworthy mobile experience for complex on-chain asset interactions.

You will act as both a hands-on technical contributor and a mentor, shaping the mobile engineering culture alongside product, design, and Web3 teams.

As the Senior iOS Engineer, you will be the mobile expert responsible for defining how users engage with our platform's next-generation asset layer. Your primary focus will be on delivering exceptional UI/UX for consumers, creators, and communities on iOS.

Infrastructure Engineer – Node Operations (Stablecoin / DeFi Focus)

Location: Remote - Based in EST or CST

Compensation: $175K - $225K

We are a technology company on a mission to transform how money moves. We believe stablecoins are the foundation of a new financial fabric—one that is faster, more global, and more efficient. We are building a full-service platform for issuing, managing, and integrating programmable, composable stablecoins into the global financial ecosystem.

Backed by world-class investors, we are a small, mission-driven team of builders with a high bar for excellence. We value clear thinking, extreme ownership, and high-velocity decision-making. We are seeking an Infrastructure Engineer – Node Operations to maintain the critical resilience and performance of our blockchain systems.

The Infrastructure Engineer – Node Operations will be directly responsible for managing and maintaining our core blockchain infrastructure. This includes critical components like RPC nodes, data indexers, and the internal telemetry pipeline. This role is essential for ensuring the high availability, reliability, and performance of systems that underpin our stablecoin platform. You will proactively strengthen our monitoring, automation, and operational resilience in a rapidly evolving blockchain environment.

Key Responsibilities

Machine Learning Scientist (SocialFi/Decentralized Platform)

Location: New York City, London (Office)

Compensation: $250K - $300K

We are a high-growth software development company comprised of elite builders, moving fast to redefine what is possible in the social and decentralized technology space. We are proud contributors to one of the largest global social networks in the crypto space. We are committed to leveraging cutting-edge technology to build the future of decentralized applications.

We are seeking an experienced Machine Learning Scientist to be instrumental in applying AI and ML techniques to shape the future of our platforms and beyond.

As a Machine Learning Scientist, you will work alongside world-class engineers and product teams to drive the development of sophisticated algorithms. These models will power key platform features such as personalization, recommendations, search, and real-time decision-making, significantly enhancing the user experience.

Key Responsibilities

Head of Ecosystem & Community (Rollup Infrastructure)

Location: Remote - US only

Compensation: $150K - $220K

We are a pioneering blockchain infrastructure firm building the future of rollup architecture. Our vision is to solve the fragmentation of the current ecosystem by enabling synchronous cross-chain composability. We believe developers shouldn't have to choose between scalability and interoperability.

We are creating a modular rollup framework that allows app-specific L3s to remain sovereign while achieving atomic, cross-chain interactions—no trusted bridges or brittle async calls required. Backed by top-tier Ethereum researchers and VCs, we are looking for a high-leverage leader to grow our ecosystem and drive the adoption of our core platforms, including our Based Appchain Platform.

Key Responsibilities:

Backend Engineer (High-Performance Trading Infrastructure)

Location: Singapore (Hybrid)

Compensation: $80K - $140K

We are a specialized prime brokerage focused on building robust, institutional-grade infrastructure for large-scale algorithmic trading on a leading platform. We are seeking an exceptional Backend Engineer to build the core infrastructure powering our services, utilizing cutting-edge technologies to meet institutional demands for speed and reliability.

This role offers the opportunity to work on high-performance distributed systems, TEEs (Trusted Execution Environments), advanced cryptography, and next-generation smart contracts.

You will be responsible for designing, implementing, and optimizing the core backend services and blockchain components that enable institutional-grade algorithmic trading. Your work will directly contribute to building systems with the highest standards for performance, security, and low latency.

Key Responsibilities

Vice President of Sales - Enterprise Blockchain Solutions

Location: London, New York City (Hybrid)

Compensation: $200K - $225K

We are seeking an experienced and strategic-minded Vice President of Sales to lead our sales department, drive significant business growth, and expand our market reach for our advanced blockchain solutions. Reporting directly to the Chief Revenue Officer (CRO), this critical leadership role is responsible for both sales team management and active engagement in the full selling cycle.

The VP of Sales will own the development and execution of strategic sales plans to meet ambitious revenue goals. You will oversee all daily sales operations, ensure alignment with executive strategy, and act as a key liaison with major clients and strategic partners. This role requires a leader who can mentor a high-performing team while personally closing high-level negotiations.

Management Responsibilities:

VP of Solutions Engineering - Enterprise Blockchain Financial Infrastructure

Location: Remote - Must be in the European Union (remote-first, office optional). France or Paris or as close as possible, always preferred.

Compensation: $190K - $285K

Join a stellar team of leaders and experts building the backbone of blockchain wallet infrastructure for the next financial era. We are hiring a VP of Solutions Engineering to help financial institutions and enterprises adopt our platform with confidence and ease. This is a high-impact, strategic, and hands-on role where you will serve as the trusted technical advisor to CTOs, architects, and engineering teams at banks, fintechs, and enterprises.

You will sit at the intersection of engineering and customer success, equally comfortable whiteboarding ideas, writing code examples, and jumping on calls to assist customers. Your role is to architect complex integrations, guide clients through secure deployment, and drive successful, scaled adoption by pairing deep technical expertise with executive-level communication skills.

Responsibilities: