Head of Ecosystem & Community (Rollup Infrastructure)

Location: Remote - US or Europe

Compensation: $150K - $220K

We are an ambitious, early-stage infrastructure company backed by leading figures in the Ethereum ecosystem. Our bold vision is to revolutionize rollup design by achieving synchronous cross-chain composability. We are building a modular rollup framework that allows individual chains to remain sovereign while enabling atomic, seamless interactions—eliminating the need for trusted bridges or brittle asynchronous calls.

We are pioneering a new architecture where app-specific layers can interoperate as smoothly as smart contracts on a single chain. We are seeking a crypto-native Head of Ecosystem & Community to drive adoption, build our developer community, and communicate our vision for a composable future.

You will be responsible for defining and executing the strategy to build and scale our developer ecosystem, drive the adoption of our modular rollup technology, and amplify our technical vision within the broader crypto community.

Key Responsibilities

Senior Software Engineer (AI Workflow Platform)

Full-time | Hybrid

Location: New York, NY

We are an innovative AI company on a mission to create "Superhumans" by pairing every person with an AI teammate. Our platform transforms complex business workflows across the distribution economy (e.g., quoting, claims, backlogs) into codifiable, self-running processes. We are seeking a Senior Software Engineer to be a technical leader in developing our core AI workflow platform.

This is a key leadership role where you will drive the platform's technical direction, quality standards, and feature development. You must be comfortable bridging technical implementation with strategic business and client needs.

What you will be doing:

Staff Software Engineer, Machine Learning (LLM Backend)

Location: Burlingame, CA (On-site, 4 days/week)

Employment Type: Full-time

Salary Range: $145K - $250K

We are a rapidly growing AI technology company transforming mission-critical processes in the healthcare industry. We are seeking a Staff Software Engineer to architect and scale the secure, reliable backend systems that power our advanced Large Language Model (LLM) applications. This role requires expertise at the intersection of applied AI, distributed systems, and security/compliance in a regulated domain.

You will be responsible for pushing LLMs beyond demos into mission-critical, cost-efficient, and secure production healthcare workflows. This is a technical leadership role driving the end-to-end delivery of core ML/LLM systems.

Key Responsibilities:

Software Engineer (Full Stack, AI/Marketplace)

Location: NYC (100% On-site in SoHo)

Employment Type: Full-time

Salary Range: $140K - $210K

We are a rapidly growing, well-funded technology company (backed by world-class VCs) building the autonomous future of industrial staffing through fully orchestrated, multi-agent AI workflows. Our mission is to redefine labor management and drive peak efficiency across the global supply chain. We are seeking experienced, entrepreneurial engineers to build our foundational core product suite.

We are hiring across multiple seniority levels and both frontend/backend disciplines. You will partner directly with our CTO to own product decisions, architect foundational systems, and iterate on the product roadmap.

Key Responsibilities:

Software Engineer - AI & Legal Tech Transformation

Location: Hybrid - New York

Compensation: $160,000 – $250,000

We are a fast-growing legal technology company, founded by a mix of legal operators and tech veterans from top-tier companies, focused on solving high-impact problems in the legal world. We are turning chaos—repetitive tasks, paper-based bottlenecks, and data fragmentation—into clarity using well-designed systems, AI, and thoughtful software. We are seeking a Software Engineer to own critical features end-to-end and influence our engineering culture from the ground up.

You will be responsible for building fast, shipping often, and partnering closely with cross-functional teams (product, ops, design, and legal experts). This role demands high ownership, requiring you to manage the full feature lifecycle from architecture design to production release. You must move quickly without sacrificing quality, integrating safety, observability, and performance from the start.

What you’ll do:

Senior Software Engineer - AI-Powered Healthcare Communication

Location: Hybrid - San franciisco

Compensation: $125K - $200K

We are a high-growth AI and Healthcare technology company with the mission of making exceptional healthcare accessible anytime, anywhere, for everyone. Our platform uses Generative AI to facilitate millions of patient interactions, helping health systems automate operational tasks and navigate care at scale. We are well-capitalized, growing rapidly (with 10x revenue growth since January), and backed by leading investors. We are seeking a product-minded Senior Software Engineer to build and scale the customizable fleet of GenAI agents that power our platform.

You will be a critical, autonomous contributor, deeply involved in key decisions alongside the founders. Your primary focus will be on building our AI-powered healthcare communication platform, which includes developing voice agents that serve as the first point of contact for medical practices, handling tasks from appointment scheduling to patient triage. You will translate complex healthcare needs into scalable, secure software solutions.

Responsibilities:

Senior Full Stack Engineer (Frontend-Centric) - AI Marketing & Data Platform

Location: Remote - US or Canada

Compensation: $180,000 – $270,000

We are a high-growth, $1.2B-valued company that pioneered the Composable Customer Data Platform (CDP), empowering every business user to take action on their data. We are building the next generation of marketing products, including an AI Decisioning platform that allows marketers to set goals for AI agents to personalize customer interactions. We are seeking a Senior Full Stack Engineer (70-80% Frontend) to develop the intuitive, interactive interface that makes advanced AI and deep analytics accessible to non-technical users.

You will be instrumental in the end-to-end design and implementation of highly interactive user interfaces for a new era of marketing and growth products. This is a frontend-centric role that requires strong architectural ownership, proficiency in modern web stacks, and a solid understanding of backend API design to integrate complex machine learning models into intuitive user experiences.

On a typical day, you will:

Frontend Deployed Engineer - API Tools & Developer Experience

Location: On site - Williamsburg, Brooklyn

Compensation: $170,000 – $230,000

We are a rapidly scaling software company, backed by top investors, enabling businesses to offer "Stripe-level" SDKs (client libraries) and documentation for their REST APIs. Our platform tackles the core pain points of APIs—untyped, unstandardized, and out-of-sync—by leveraging technology inspired by internal tooling at major tech firms. We are looking for an ambitious Frontend Deployed Engineer to help us scale from $1M to $10M ARR.

This is a high-impact, hands-on role at the intersection of engineering and customer success, ideal for engineers with entrepreneurial goals. You will work directly with CTOs, VPs of Engineering, and developers at fast-growing tech companies to solve their highest-priority problems, influence our product roadmap, and drive adoption.

What You’ll Do:

Backend Software Engineer - Payments & Digital Money

Location: New York (Hybrid)

Compensation: $150K - $180K

We are a lean and mighty team of passionate builders, funded by top investors in fintech and crypto, focused on empowering the next generation of money and financial products globally. We are seeking a Backend Software Engineer to join us at the cutting edge intersection of real-world payments and digital money, where you will deliver massive impact within a small, quickly growing company.

You will be a critical part of defining our technical and product roadmap, contributing directly to our core backend infrastructure. This role involves rapid feature shipping, large-scale system scaling, and integrating with diverse third-party services and smart contracts across multiple chains. You will have the freedom to explore ideas, impact the company's vision, and grow into the role that best aligns with your personal goals.

What You'll Do:

Protocol Lead - Rule Enforcement for Regulated Blockchains

Location: remote - north and South America and the EU

Compensation: $180K - $220K

We are building a platform that sets the standard for how regulated blockchain applications enforce transaction rules directly at the smart contract layer. Our system empowers teams to create modular, programmable policies (like AML/CFT checks or off-chain collateral requirements) enforced with cryptographic guarantees before a transaction executes on-chain. We are seeking a Protocol Lead to own the entire smart contract suite, driving robust, scalable risk management for real-world use cases.

As the Protocol Lead, you will have full ownership of the architecture, development, and maintenance of our core smart contract suite. You will be the team's blockchain subject matter expert, defining security best practices, managing audits, and building tooling for seamless integration. This role requires a balance of hands-on coding, security leadership, and cross-ecosystem research (EVM and non-EVM).

Key Responsibilities: