Senior Software Engineer (Backend, AI Infrastructure)

Location: Remote - US only

Compensation: $180K - $300K

We build mission-critical infrastructure that delivers massive amounts of public web data to the companies training the world’s most powerful AI models. Our unique architecture leverages a massive, distributed bandwidth-sharing network to operate a large-scale global crawler, granting us access to high-quality public web data at scale. On top of this, we've built complex pipelines for ingesting, segmenting, and annotating billions of files, including videos, transcripts, and audio, empowering frontier AI labs with essential datasets.

We are a lean, technical team that moves fast, prioritizing high output and low ego. We are seeking a Senior Software Engineer (Backend) with deep expertise to architect scalable solutions and drive technical excellence as we push the boundaries of open web data and AI.

You will join a small, talented team to lead the design and implementation of highly scalable backend systems. Your expertise will be crucial in ensuring the robustness and maintainability of the infrastructure that supports our massive distributed crawler and data processing pipelines. You will play a critical role in shaping the evolution of the internet's role in AI development.

What You'll Be Doing

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.

Developer Relations Engineer (Algorithmic 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 (Hyperliquid). We are seeking a highly technical Developer Relations Engineer to fully own the integration experience for advanced API-driven traders.

You will work directly with systematic funds, proprietary trading firms, and sophisticated builders, ensuring fast, reliable, and low-friction adoption of our prime brokerage services.

As the Developer Relations Engineer, you will be the technical interface between our core engineering team and our highest-value users—quantitative trading desks and systematic funds. Your primary goal is to ensure seamless integration and maximum performance when users connect to our APIs and trading infrastructure.

Key Responsibilities

iOS Designer / Product Engineer (Elite Team, High Impact)

Location: Remote - NYC preferred but would consider strong designers remotely across the US.

Compensation: $200K - $250K

We are a highly profitable, high-growth platform that has enabled creators to generate over $50 million since launching in 2025. Our mission is to simplify the process of supporting anyone in the creator economy. We operate with an uncompromising commitment to talent density—maintaining a small, elite team where every member has outsized ownership and impact.

We are seeking an exceptional iOS Designer / Product Engineer to join us as one of the two dedicated experts jointly owning the entire native iOS application. If you have an extreme attention to detail, live to build beautiful products, and thrive in a fast-paced, high-autonomy environment, we want to hear from you.

You will be a key leader in product design and technical implementation, jointly responsible for the entire user experience, visual quality, and technical integrity of the core iOS application. You will balance design perfection with rapid shipping to deliver features that directly drive platform growth and creator success.

Key Responsibilities

DevOps Engineer (FinTech & High-Performance Systems)

Location: Remote - Fully Remote throughout EU

Compensation: $95K - $105K

We are seeking to revolutionize the FinTech industry and establish a new paradigm for financial technology. We need the best minds to help us achieve this ambitious goal.

As a DevOps Engineer, you will work directly with our engineering team in a fast-paced, high-stakes environment, tackling complex infrastructure problems. You are obsessed with achieving good architecture, efficiency, and resilience, aiming for nothing but the best product for our customers. Your speed, delivery capability, and knack for elegant solutions will make you a pillar of our engineering team.

You will be instrumental in designing, building, managing, and automating the high-availability infrastructure that powers our core financial and crypto services. This role demands deep technical expertise combined with a passion for continuous delivery and security.

What You’ll Be Working On

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

Lifecycle / Retention Manager (Braze Focus)

Location: Remote - Open to remote US/Canada but MUST be available for in person sprints in NYC - Preference for full time in NYC

Compensation: $130K - $150K

We are a high-growth consumer technology company defining the next generation of finance. Our iOS and Android application is often described as the "Robinhood for DeFi," allowing anyone to trade cryptocurrencies on-chain through a simple, user-friendly interface. Since our launch in July 2024, we have attracted over 2 million users. Our mission is ambitious yet straightforward: to onboard the world to decentralized finance, making finance open and accessible to everyone.

We are a lean team of passionate self-starters who relish autonomy and are united by a sense of urgency. We are seeking a Lifecycle / Retention Manager to take end-to-end ownership of our CRM strategy, primarily utilizing Braze.

As the Lifecycle / Retention Manager, you will be the core owner of the entire user messaging lifecycle. You will leverage Braze end-to-end to drive user activation, retention, and reactivation across all messaging channels. This role requires a hands-on operator who is driven by metric movement and a deep understanding of user psychology.

Key Responsibilities

Head of Product (Crypto & AI Consumer Platform)

Location: Remote - Sliding scale - PST preference, US Remote, Asia, Europe

Compensation: $120K - $240K

We are a rapidly evolving technology company building the next generation of consumer products at the intersection of Crypto and AI. Our platform gives users the power to spin up on-chain applications, launch custom tokens, and raise capital in minutes. We are looking for a senior, crypto-native Head of Product who can own our product strategy and execution end-to-end.

This role requires a leader who has demonstrated founder or near-founder level ownership of an entire product surface, ideally within DeFi, a launchpad, or a DEX. You will partner directly with the founding team, drive strategy across our core crypto surfaces, and significantly elevate the quality, taste, and execution speed across the organization.

You will have complete end-to-end accountability for the product strategy and execution across the platform's critical crypto ecosystem.

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: