Senior Software Engineer (Mobile - React Native)
Status
Full time
Remote
Compensation is not specified
Role
Software Engineer
Description
Company Overview We are a venture capital-backed firm focused on applied cryptography, specializing in developing software for private key management. The core of our mission is to promote the widespread utilization of cryptographic keys to facilitate innovations that empower individuals. Our proprietary solution enables applications to establish a public key infrastructure while preserving familiar user interfaces. Upholding an intense focus on performance, adaptability, and tangible contributions, we are dedicated to achieving our objectives.
Job Responsibilities
- Design and implement top-notch mobile applications and software development kits (SDKs) for our key management system
- Collaborate closely with diverse teams to conceptualize, design, and implement new functionalities
- Proficiency in troubleshooting and debugging mobile applications
- Lead technical decision-making processes for system designs
- Influence the team's technical strategies and provide guidance to junior developers
Requirements
- Minimum of 4 years of experience in mobile app and SDK development
- Proficient in React Native, Swift, and Kotlin
- Proficient in utilizing major SDK packaging tools such as CocoaPods, SPM, and JitPack
- Experience with web app development is a valuable asset
- Strong grasp of design patterns and software architecture
- Exceptional problem-solving abilities and communication skills
- Previous exposure to blockchain technology is highly advantageous
Why Join Us
We offer competitive compensation packages and a dynamic, fast-paced work environment. If you are enthusiastic about making a meaningful impact and eager to explore the realm of blockchain technology, we invite you to submit your application!
Skills Required
Web3Auth
Website
web3auth.ioCompany size
Not specified
Location
United States
Description
Not specified
Status
Sirex
AI Product Lead
Full time
Remote
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
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
Payment in Crypto
Sirex
On-Chain AI Analyst / Data Scientist
Full time
Remote
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 (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
Payment in Crypto
Sirex
RWA & Tokenization Protocol Engineer
Full time
Remote
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
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
Payment in Crypto
Sirex
Senior Rust Engineer — Decentralized AI Compute & GPU Orchestration
Full time
Remote
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
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
Payment in Crypto
John Waldron
🚀 Hiring Solana Developers – Pump.fun
Montana City, USA
Montana City, USA
Full time
Remote
Solana Developer Needed – Pump.fun Style Platform (Starter Code Available)
Hi,
I’m reaching out from Valiant Solution LLC. We’re currently working with a U.S.-based client who is an experienced crypto professional and we’re looking for a skilled Solana developer to help build a platform similar to Pump.fun.
We already have a basic codebase from GitHub that the developer can start from, so the project will mainly involve customizing, improving, and completing the functionality rather than building everything from scratch.
Key requirements:
• Experience with Solana smart contracts (Rust / Anchor)
• Knowledge of token launch mechanics and bonding curves
• Experience with Solana Web3 integrations
• Ability to work with an existing codebase and extend it
If this sounds interesting, please reply with:
• Your Solana development experience
• Links to relevant projects or GitHub
• Your availability for a quick discussion
Looking forward to connecting.
Best regards,
Valiant Solution LLC
Hi,
I’m reaching out from Valiant Solution LLC. We’re currently working with a U.S.-based client who is an experienced crypto professional and we’re looking for a skilled Solana developer to help build a platform similar to Pump.fun.
We already have a basic codebase from GitHub that the developer can start from, so the project will mainly involve customizing, improving, and completing the functionality rather than building everything from scratch.
Key requirements:
• Experience with Solana smart contracts (Rust / Anchor)
• Knowledge of token launch mechanics and bonding curves
• Experience with Solana Web3 integrations
• Ability to work with an existing codebase and extend it
If this sounds interesting, please reply with:
• Your Solana development experience
• Links to relevant projects or GitHub
• Your availability for a quick discussion
Looking forward to connecting.
Best regards,
Valiant Solution LLC
Payment in Crypto