Backend Engineer
Status
Denver, USA
Full time
Hybrid
Compensation is not specified
Role
Backend Engineer
Description
About Us: Our company is an up-and-coming Ethereum liquid staking protocol that gives stakeholders full control over their assets. We have a strong community and currently boast a TVL of over $1B. All information about our protocol can be accessed on Dune Analytics.
Position Overview:
We are seeking an experienced Backend Engineer with specialized knowledge in blockchain and backend technologies to join our team. The ideal candidate should possess a deep understanding of backend systems, the capability to create and maintain scalable and reliable solutions, and a keen interest in blockchain technology. Those with experience in DevOps and blockchain development will have an advantage.
Key Responsibilities
- Design and develop high-performance backend systems using Golang or Python.
- Optimize and manage relational databases, ensuring data integrity and performance.
- Collaborate with frontend developers to integrate blockchain functionalities seamlessly.
- Develop and maintain secure and scalable API services for optimal performance.
- Adhere to best practices for code development, including testing, review, and documentation.
- Manage AWS resources, pipelines, and infrastructure.
- Monitor and enhance system performance and reliability, troubleshooting backend issues as needed.
- Contribute to development and deployment processes with CI/CD, containerization, and infrastructure as code practices.
- Stay informed about the latest trends in blockchain tech, backend development, and DevOps to improve our platforms continually.
Qualifications
- Bachelor’s degree in Computer Science, Engineering, or a related field.
- Strong expertise in Golang or Python, with a minimum of 3 years in backend development.
- Extensive experience with relational databases, particularly PostgreSQL.
- Familiarity with blockchain tech, smart contracts, and DApps is highly preferred.
- Experience with DevOps practices, AWS, and microservices architecture is beneficial.
- Proficient in RESTful API development while delivering scalable solutions.
- Ability to work both independently and collaboratively in a team, with strong communication skills.
Benefits
- Competitive salary, equity offerings, and potential salary in ETH.
- Opportunity to work with cutting-edge tech and a talented team.
- Health, dental, vision insurance plans.
- Inclusive work culture with company events and team-building activities.
Skills Required
Ether.Fisezc
Website
www.ether.fiCompany 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