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:

Infrastructure & Platform Engineer Job Posting

Location: New York, San Francisco (Office)

Compensation: $185K - $400K

Join a cutting-edge team building high-performance financial systems on a rapidly growing platform! We are seeking an experienced Infrastructure & Platform Engineer to help shape the core components of our scalable, real-time infrastructure.

You will be joining our Infrastructure & Platform team, which is focused on designing, deploying, and operating core components—including compute, storage, and networking—for scalable, high-performance systems and services. Your work will directly support a transformative project that is critical to the broader crypto derivatives market, giving users more flexibility in collateral management and expanding the capabilities of our platform.

What You'll Do:

Senior Full-Stack Software Engineer (On-site)

Compensation: $150K - $200K

We are hiring a Senior Full-Stack Software Engineer to join a fast-paced, high-growth AI company dedicated to building the next generation of autonomous digital workers. This is an on-site, full-time position in San Francisco, CA.

As a Senior Full-Stack Software Engineer, you will play a crucial role in shaping the future of AI and digital workers. Your primary focus will be on driving velocity and end-to-end ownership of products and problems within the engineering team.

Key Responsibilities:

• Architect and build new, complex workflows within our core products.
• Maintain and optimize existing feature-rich workflows to ensure high performance and reliability.
• Act as a critical bridge between Applied Research, Go-To-Market (GTM), Product, and Engineering teams.
• Identify, propose, and implement significant architectural improvements and scalability solutions.
• Drive and enforce technical decisions and best practices across the engineering team.
• Actively contribute to product engineering across the full stack.

Requirements

Senior Member of Technical Staff - Founding Team

Location: San Francisco (On-site)

Employment Type: Full-time

Compensation: $140K - $280K

We are seeking a Senior Member of Technical Staff to join our founding engineering team. As a full-stack generalist, you will play a critical role in developing the "last mile" delivery infrastructure for cutting-edge drugs like cell/gene therapies and biologics.

This role offers the unique opportunity to work across the entire technology stack—frontend, backend, AI infrastructure, and DevOps. Given the compound nature of our product, you will frequently collaborate on short-lived, high-impact project teams focused on specific problems.

Key Responsibilities:

• Outlining the 0-to-1 of project requirements, goals, and roadmaps based on customer needs in the healthcare space.
• Defining complex agentic architectures within a demanding, highly-regulated industry.
• Wrangling a wide variety of cutting-edge agentic AI infrastructure to accelerate drug breakthroughs.
• Leading end-to-end implementation to deliver fast, high-quality iterations to our healthcare customers.

Full Stack AI Engineer (Founding)

Location: San Francisco, CA (On-site)

Employment Type: Full-time

Compensation: $120K - $180K

We are a rapidly growing, funded startup at the intersection of Artificial Intelligence and Growth Technology, building agentic prospecting tools to help companies scale with the power of AGI.

We are seeking a Founding Full Stack AI Engineer to deliver premium-grade products to our high-growth clients. You'll be working on important, high-impact problems at the frontier of technology, where every deliverable is tied directly to a client outcome.

This role involves building advanced tools that leverage cutting-edge AI advancements, including:

• Agentic Infrastructure
• Large Language Models (LLMs) and Prompting
• Retrieval-Augmented Generation (RAG)
• Vector Databases
• Fine-tuning and Few-Shot Learning

Your primary responsibility will be to deliver premium-grade products to our clients (growth teams), enabling sales teams to operate with unprecedented precision and efficiency. If you operate best with a "Hackathon Mentality" and are driven by client-deliverables, you will thrive here.

Founding Full-Stack Engineer - AI Production Systems

Location: San Francisco, CA (On-site)

Employment Type: Full-time

Compensation: $200K - $275K

We are building the first telemetry and production system designed for large language models (LLMs), giving them complete visibility into and control over running software, beginning with automatic error fixes.

We are seeking a Founding Full-Stack Product Engineer who is comfortable wearing all hats in a fast-paced environment. This role is highly dynamic, bridging classical full-stack engineering with cutting-edge Generative AI product features.

Key Responsibilities:

Founding Engineer - AI Learning Platform

Location: New York City, NY (Hybrid)

Employment Type: Full-time

Compensation: $180K - $250K

We are building the future of learning for the deskless and blue-collar workforce, fundamentally reshaping a $400 billion market by leveraging AI. Our platform transforms traditional training documents into fully gamified, interactive experiences powered by AI tutors.

We are seeking a Senior Staff Engineer with an absolute ownership mentality to join us as a technical leader in our NYC office. You will work directly with founders and other senior engineers who ship at incredible velocity.

Key Responsibilities:

Founding Engineer - AI Native Workspace

Location: San Francisco, CA (On-site)

Employment Type: Full-time

Compensation: $150K - $250K

We are a well-funded, early-stage company building a reimagined workspace with AI at its core, starting with an AI native spreadsheet product. We are looking for an experienced Founding Engineer—a generalist who thrives in a fast-moving, talent-dense startup environment.

As a member of our extremely small team, you will be instrumental in creating a magical and accessible agent experience, tackling the significant opportunity of large-scale agent-orchestration.

• Operate in a full-stack capacity, contributing across the entire product.
• Talk to users, track metrics, and iterate quickly to achieve product-market fit.
• Scope out and implement core features of our AI-native workspace.
• Actively shape the product vision and roadmap alongside the founders.

We are backed by a premier accelerator and top builder/operators, including co-founders of major tech companies. This is a unique chance to define the future of how people interact with data and intelligence in their daily work.

Requirements

AI Innovation Specialist - Intelligent Automation

Location: Remote (Must work US Central Timezone)

Employment Type: Full-time

Compensation: $150K - $200K

We are a rapidly growing, tech-enabled global company in the Hospitality and Real Estate space, seeking an AI Innovation Specialist to drive operational excellence through intelligent automation and process improvement.

This role sits at the critical intersection of Engineering and Business Intelligence, where you will leverage cutting-edge AI and modern automation technologies to transform how we work. Your mission is to identify, design, and implement scalable, automated solutions that reduce manual workload and enhance productivity across all departments—from Operations and Guest Services to Finance and HR.

What You'll Do: