Senior Full Stack Engineer - Blockchain Developer Platform

Location: Remote - Based in ET timezone or happy to work 100% ET hours.

Compensation: $180K - $225K

We are a pioneering platform dedicated to setting the standard for how regulated public blockchain networks enforce critical transaction rules. We empower teams to create modular and programmatic policies—such as AML/CFT checks and off-chain collateral requirements—that are cryptographically verified and securely enforced before transactions execute on-chain. Our mission is to provide robust, tailored risk management for real-world customer needs in the next era of decentralized finance.

As a Senior Full Stack Engineer, you will be instrumental in building the core components of our developer platform, Predicate. This is a high-impact role with direct ownership over feature design and implementation, shaping how developers interact with and implement complex transaction prerequisites.

Responsibilities:

Lead Product Designer (Web3/DeFi)

Location: $150K - $200K

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

Join a well-funded, expert-led team building the unified yield engine for the crypto economy. We are creating the platform that intelligently reallocates assets across Decentralized Finance (DeFi) protocols to maximize returns. This is a foundational, fully remote role to own our user experience, brand, and design system from the ground up.

As the Lead Product Designer, you will have immense ownership, responsible for shaping the design of the next generation of our platform. You will build extraordinary, simple, and delightful experiences in a complex Web3 ecosystem. This role is ideal for a designer who thrives on high ambiguity, rapid iteration, and taking full ownership of the design process end-to-end.

The Opportunity:

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:

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