Recruiter, Marketer, Advertiser, Business Developer

AI Product Lead — Portfolio Companies
Sirex Portfolio Companies
Salary: $160,000 – $225,000 USD base + equity
Location: Remote-first
About the role
Own product strategy and roadmap for AI-native products inside our portfolio (autonomous agents, AI devtools, RWA platforms). Bridge technical founders and go-to-market.
What you’ll do
•Define product vision and prioritization for AI agent platforms
•Work directly with engineering on agent architecture and user experience
•Run user research and go-to-market experiments
•Help portfolio companies ship from MVP to product-market fit
Requirements
•4+ years product experience (ideally in AI or Web3)
•Strong technical understanding of LLMs and agents
•Previous startup or VC portfolio experience
•Data-driven and execution-focused
What we offer
•Work across multiple exciting AI/Web3 companies
•Huge ownership and equity upside
•Direct mentorship from Sirex partners

On-Chain AI Analyst / Data Scientist
Sirex (Fund + Portfolio)
Salary: $145,000 – $200,000 USD base + equity
Location: Remote-first
About the role
Turn on-chain data into alpha for AI agents, DeFi protocols and RWA investments. Build dashboards, anomaly detection and predictive models using real-time blockchain data.
What you’ll do
•Develop on-chain analytics pipelines (The Graph, Dune, custom indexers)
•Build AI models that predict protocol TVL, agent activity and RWA flows
•Create internal tools for investment thesis validation
•Research and publish insights on autonomous agent behavior on-chain
Requirements
•Strong Python + SQL + data science background
•Deep experience with blockchain data (Dune, Flipside, custom subgraphs)
•Familiarity with LLMs and agent systems
•Previous crypto research or trading experience
What we offer
•Direct influence on fund investment decisions
•Access to proprietary on-chain datasets
•Fast-track to senior research roles

Sirex Portfolio Companies
Salary: $155,000 – $220,000 USD base + equity + token package
Location: Remote-first
About the role
Build real-world asset tokenization protocols and compliant on-chain infrastructure for our RWA portfolio companies (real estate, carbon credits, invoices, treasuries).
What you’ll do
•Design and audit upgradeable smart contracts for RWA issuance, custody and compliance
•Implement cross-chain bridging, oracle integration and KYC/AML hooks
•Build tokenization SDKs and developer tools
•Work on regulatory-compliant mechanisms (ERC-3643, ERC-1400 style)
•Ship production protocols on Ethereum, Polygon, Arbitrum and Solana
Requirements
•4+ years Solidity + security experience (OpenZeppelin, audits)
•Deep knowledge of token standards and RWA primitives
•Experience with legal/compliance wrappers — strong plus
•Rust or Move experience is a bonus
What we offer
•Work on protocols that bring trillions in real-world value on-chain
•Direct collaboration with legal and regulatory partners
•High upside through protocol ownership and tokens

Senior Rust Engineer — Decentralized AI Compute & GPU Orchestration
Sirex Portfolio Companies
Salary: $170,000 – $240,000 USD base + meaningful equity + token package
Location: Remote-first (any timezone)
About the role
We’re building the next layer of decentralized compute for AI agents — GPU orchestration, libp2p networking, verifiable execution and on-chain coordination. Join one of our high-conviction portfolio companies or work directly with the Sirex infra team.
What you’ll do
•Design and ship production Rust services for distributed GPU clusters and agent orchestration
•Build libp2p + IPFS-based peer discovery and data exchange layers
•Implement verifiable compute primitives (zkML, TEE, or on-chain proofs)
•Optimize for cost, latency and fault tolerance at scale
•Collaborate with AI teams on autonomous agent deployment
Requirements
•4+ years Rust (production experience mandatory)
•Strong background in distributed systems, networking or blockchain infra
•Experience with libp2p, IPFS, GPU compute (CUDA/ROCm) or TEEs — big plus
•Deep understanding of AI agent workloads
What we offer
•Direct impact on core infrastructure that powers multiple portfolio companies
•Top-tier equity + token upside
•Fast growth to Staff/Principal level
•Work with the best AI + crypto teams in the space

Role:
Help build and scale decentralized infrastructure: contribute to compute networks, protocols, storage layers, and orchestration tools that power AI agents and open digital systems. You’ll write code, run tests, fix bugs, and ship real features fast.
Skills & Requirements: 
1–3 years in blockchain infra, distributed systems, or high-scale compute (or strong personal projects) 
Solid Python / Rust / Go skills 
Interest in libp2p, IPFS, GPU orchestration, or decentralized compute 
Quick learner who ships clean code and loves performance/cost challenges
Salary:
$110,000 – $165,000 USD base + meaningful equity (portfolio startup) + full benefits + Sirex carry
Description:
Sirex.vc doesn’t just invest — we plug strong builders straight into our portfolio companies.
This is your chance to work on the real infrastructure behind autonomous agents and the open digital economy. Full support from the Sirex team, fast growth, zero bureaucracy.
High risk. Zero apologies.