Senior Software Engineer, Custody
New York, USA +1
Full time
Remote
Compensation is not specified
Role
Software Engineer
Description
Looking for an opportunity to join a top-notch blockchain development team at Ava Labs? We specialize in simplifying the deployment of high-performance Web3 solutions, with a focus on Avalanche innovation. Founded by Cornell computer scientists and supported by Wall Street veterans, we are driving advancements in permissionless network construction. Come be a part of our mission to revolutionize the creation of value in the Web3 space by enabling effortless digitization of global assets on a single open, programmable blockchain platform.
Seeking a skilled Senior Backend Developer for our Institutional Custody Team, dedicated to securing and managing digital assets while pioneering new custody solutions. We need someone proficient in high-security systems development to bolster our frameworks and drive innovative custody technologies.
WHAT YOU WILL DO
- Create and maintain backend services for cryptocurrency wallet solutions using Golang
- Develop scalable, secure, and high-performing systems to support digital assets transactions and custody
- Lead decision-making in system architecture, design patterns, and technology selections
- Collaborate with various teams to deliver comprehensive solutions, from product management to security experts
- Ensure high code quality through detailed testing, reviews, and adherence to best practices
- Stay informed on blockchain advancements and incorporate them into our products when relevant
- Mentor junior engineers, fostering continuous learning and growth
WHAT YOU WILL BRING
- Extensive background in backend development using Golang
- Demonstrated experience in creating and maintaining cryptocurrency wallet solutions
- Proficiency in blockchain tech, cryptography, and secure coding practices
- Strong system architecture and design skills with the ability to make critical decisions
- Knowledge of various blockchain protocols and cloud services like AWS, GCP, Azure
- Strong problem-solving capabilities and proactive issue detection and resolution
- Good communication skills and effective teamwork abilities
NICE TO HAVE
- Experience with Multi-Party Computation (MPC) and advanced cryptographic techniques
- Contributions to open-source blockchain projects
- Familiarity with containerization and orchestration tools like Docker and Kubernetes
Salary Range: $142,400 to $178,000
(**Note: Salary may vary based on experience and location.)
If you are interested in joining an early-stage Web3 company with a global team of experts passionate about reshaping finance and decentralized applications, this is your chance to be at the forefront of technological transformation. With notable investors backing us, Ava Labs encourages a diverse workplace and is an Equal Opportunity Employer, making decisions based solely on qualifications and business needs.
Skills Required
Ava Labs
Website
www.avalabs.orgCompany size
Not specified
Location
United States
Description
Not specified
Emir Hammami
Looking for a blockchain developer
Whiteman Air Force Base, USA
Whiteman Air Force Base, USA
Full time
Remote
We are looking for a skilled Full-Stack Blockchain Developer to help maintain, improve, and extend the RaiseHive platform. This role involves working across the frontend, backend, and smart contract layers to ensure a stable, secure, and scalable Web3 application.
The ideal candidate has hands-on experience with React, Node.js, Ethereum smart contracts, and real-world Web3 integrations.
Framework: React 18.2 (Vite 3)
Styling: Tailwind CSS 3.4, NextUI
Animations: Framer Motion
Web3: Thirdweb SDK v4, Ethers.js v5
Routing: React Router DOM v6
State Management: React Context API
Libraries: React Markdown, React Image Gallery, Replyke (comments), React Toastify
Runtime: Node.js
Framework: Express.js
Database: MongoDB Atlas (Mongoose ODM)
Email: Nodemailer
Scheduling: Node-cron
Logging: Pino
Network: Ethereum
Smart Contracts: Solidity ^0.8.19
Development Tools: Hardhat
Libraries: OpenZeppelin, Thirdweb Contracts
Wallet Integration: MetaMask
Frontend
Strong proficiency in React (hooks, context, routing)
Experience with Vite or modern build tools
Solid knowledge of Tailwind CSS and responsive design
Experience using component libraries (NextUI, Material UI, etc.)
Backend
Strong experience with Node.js and Express
Proficiency with MongoDB and Mongoose
REST API design and implementation
Environment configuration and deployment awareness
Blockchain & Web3
Hands-on Ethereum development experience
Solidity smart contract development
Experience with Ethers.js / Thirdweb SDK
Understanding of smart contract security and gas optimization
MetaMask wallet integration and transaction handling
General
JavaScript (ES6+)
Git version control
Async programming and debugging skills
Strong problem-solving ability
The ideal candidate has hands-on experience with React, Node.js, Ethereum smart contracts, and real-world Web3 integrations.
Framework: React 18.2 (Vite 3)
Styling: Tailwind CSS 3.4, NextUI
Animations: Framer Motion
Web3: Thirdweb SDK v4, Ethers.js v5
Routing: React Router DOM v6
State Management: React Context API
Libraries: React Markdown, React Image Gallery, Replyke (comments), React Toastify
Runtime: Node.js
Framework: Express.js
Database: MongoDB Atlas (Mongoose ODM)
Email: Nodemailer
Scheduling: Node-cron
Logging: Pino
Network: Ethereum
Smart Contracts: Solidity ^0.8.19
Development Tools: Hardhat
Libraries: OpenZeppelin, Thirdweb Contracts
Wallet Integration: MetaMask
Frontend
Strong proficiency in React (hooks, context, routing)
Experience with Vite or modern build tools
Solid knowledge of Tailwind CSS and responsive design
Experience using component libraries (NextUI, Material UI, etc.)
Backend
Strong experience with Node.js and Express
Proficiency with MongoDB and Mongoose
REST API design and implementation
Environment configuration and deployment awareness
Blockchain & Web3
Hands-on Ethereum development experience
Solidity smart contract development
Experience with Ethers.js / Thirdweb SDK
Understanding of smart contract security and gas optimization
MetaMask wallet integration and transaction handling
General
JavaScript (ES6+)
Git version control
Async programming and debugging skills
Strong problem-solving ability
Payment in Crypto
Eddie Sproule
Ecosystem & Partnerships Manager (Web3)
Full time
Remote
🚀 Job Opening: Ecosystem & Partnerships Manager (Web3)
Company: Nomea VC
Location: Remote
Employment Type: Full-time
Level: Middle / Senior
🌐 About Nomea VC
Nomea VC is a blockchain-focused venture capital fund investing in Web3, DeFi, infrastructure, and decentralized technologies. Beyond capital, we actively help projects grow through partnerships, ecosystem development, and market access.
🎯 Responsibilities
Build and manage strategic partnerships across the Web3 ecosystem
Develop relationships with founders, protocols, accelerators, and other VCs
Support portfolio companies with BD and partnership opportunities
Represent Nomea VC at industry events, demo days, and online communities
Track ecosystem trends and identify collaboration opportunities
Coordinate joint initiatives, pilots, and go-to-market partnerships
Maintain CRM and partnership pipelines
✅ Requirements
3+ years of experience in partnerships, business development, or ecosystem roles
Strong understanding of the Web3 / blockchain landscape
Proven ability to build long-term professional relationships
Excellent communication and negotiation skills
Self-driven, proactive, and comfortable working remotely
Fluent English (spoken and written)
➕ Nice to Have
Experience working in Web3 startups, protocols, or VC funds
Existing network in the crypto / Web3 ecosystem
Experience with community-led growth or DAO environments
Public speaking or event participation experience
💡 What We Offer
Key role in shaping Nomea VC’s ecosystem presence
Access to top-tier Web3 founders and partners
Fully remote work with flexible hours
Competitive compensation + performance-based incentives
High autonomy and visible impact
International, crypto-native team culture
📩 How to Apply
Please send your resume and a short intro
Company: Nomea VC
Location: Remote
Employment Type: Full-time
Level: Middle / Senior
🌐 About Nomea VC
Nomea VC is a blockchain-focused venture capital fund investing in Web3, DeFi, infrastructure, and decentralized technologies. Beyond capital, we actively help projects grow through partnerships, ecosystem development, and market access.
🎯 Responsibilities
Build and manage strategic partnerships across the Web3 ecosystem
Develop relationships with founders, protocols, accelerators, and other VCs
Support portfolio companies with BD and partnership opportunities
Represent Nomea VC at industry events, demo days, and online communities
Track ecosystem trends and identify collaboration opportunities
Coordinate joint initiatives, pilots, and go-to-market partnerships
Maintain CRM and partnership pipelines
✅ Requirements
3+ years of experience in partnerships, business development, or ecosystem roles
Strong understanding of the Web3 / blockchain landscape
Proven ability to build long-term professional relationships
Excellent communication and negotiation skills
Self-driven, proactive, and comfortable working remotely
Fluent English (spoken and written)
➕ Nice to Have
Experience working in Web3 startups, protocols, or VC funds
Existing network in the crypto / Web3 ecosystem
Experience with community-led growth or DAO environments
Public speaking or event participation experience
💡 What We Offer
Key role in shaping Nomea VC’s ecosystem presence
Access to top-tier Web3 founders and partners
Fully remote work with flexible hours
Competitive compensation + performance-based incentives
High autonomy and visible impact
International, crypto-native team culture
📩 How to Apply
Please send your resume and a short intro
Payment in Crypto
Eddie Sproule
Portfolio & Operations Manager (Web3 / Blockchain)
Full time
Remote
🚀 Job Opening: Portfolio & Operations Manager (Web3 / Blockchain)
Company: Nomea VC
Location: Remote
Employment Type: Full-time
Level: Middle / Senior
🌐 About Nomea VC
Nomea VC is a blockchain-focused venture capital fund investing in Web3, DeFi, infrastructure, and emerging decentralized technologies. We partner with early-stage founders and actively support portfolio companies beyond capital.
🎯 Responsibilities
Manage operational and reporting processes for portfolio companies
Act as a key point of contact between Nomea VC and founders
Track KPIs, milestones, and performance metrics across the portfolio
Support founders with fundraising, go-to-market, and operational topics
Prepare internal reports, dashboards, and updates for partners
Coordinate legal, financial, and compliance-related processes
Help improve internal workflows and portfolio management tools
✅ Requirements
3+ years of experience in operations, venture capital, startups, consulting, or finance
Strong organizational and project management skills
Solid understanding of the startup lifecycle and VC processes
Interest in blockchain, Web3, and emerging technologies
Ability to work independently in a remote, fast-paced environment
Excellent written and verbal communication skills in English
➕ Nice to Have
Experience working with VC funds or portfolio startups
Knowledge of Web3 business models, token-based projects, or DeFi
Financial or legal operations background
Experience with Notion, Airtable, CRM, or portfolio management tools
💡 What We Offer
Work with a global blockchain-focused VC fund
Direct exposure to high-growth Web3 startups
Fully remote setup with flexible working hours
Competitive compensation and performance-based bonuses
High level of ownership and autonomy
Lean team with strong founder-focused culture
Company: Nomea VC
Location: Remote
Employment Type: Full-time
Level: Middle / Senior
🌐 About Nomea VC
Nomea VC is a blockchain-focused venture capital fund investing in Web3, DeFi, infrastructure, and emerging decentralized technologies. We partner with early-stage founders and actively support portfolio companies beyond capital.
🎯 Responsibilities
Manage operational and reporting processes for portfolio companies
Act as a key point of contact between Nomea VC and founders
Track KPIs, milestones, and performance metrics across the portfolio
Support founders with fundraising, go-to-market, and operational topics
Prepare internal reports, dashboards, and updates for partners
Coordinate legal, financial, and compliance-related processes
Help improve internal workflows and portfolio management tools
✅ Requirements
3+ years of experience in operations, venture capital, startups, consulting, or finance
Strong organizational and project management skills
Solid understanding of the startup lifecycle and VC processes
Interest in blockchain, Web3, and emerging technologies
Ability to work independently in a remote, fast-paced environment
Excellent written and verbal communication skills in English
➕ Nice to Have
Experience working with VC funds or portfolio startups
Knowledge of Web3 business models, token-based projects, or DeFi
Financial or legal operations background
Experience with Notion, Airtable, CRM, or portfolio management tools
💡 What We Offer
Work with a global blockchain-focused VC fund
Direct exposure to high-growth Web3 startups
Fully remote setup with flexible working hours
Competitive compensation and performance-based bonuses
High level of ownership and autonomy
Lean team with strong founder-focused culture
Payment in Crypto
Eddie Sproule
Investment Analyst (Blockchain / Web3)
Full time
Remote
🚀 Job Opening: Investment Analyst (Blockchain / Web3)
Company: Nomea VC
Location: Remote
Employment Type: Full-time
Level: Junior+ / Middle
🌐 About Nomea VC
Nomea VC is a venture capital fund focused on blockchain, Web3, DeFi, and decentralized infrastructure. We invest in early-stage startups and actively support founders with strategic guidance, industry expertise, and global connections.
🎯 Responsibilities
Research and analyze early-stage Web3 and blockchain startups (pre-seed / seed)
Conduct investment research and due diligence
Prepare investment memos, pitch decks, and analytical reports
Evaluate tokenomics, business models, and market opportunities
Track and support portfolio companies
Communicate with founders and ecosystem partners
Monitor emerging trends across crypto, DeFi, infrastructure, and Web3
✅ Requirements
1–3 years of experience in venture capital, analytics, consulting, startups, or fintech
Strong analytical and research skills
Solid understanding of the blockchain and Web3 ecosystem
Ability to work with data, financial models, and presentations
Excellent written and verbal communication skills
English proficiency: Upper-Intermediate or higher
➕ Nice to Have
Previous experience in VC or high-growth startups
Knowledge of DeFi, tokenomics, L2s, and blockchain infrastructure
Financial modeling skills
Technical background or hands-on Web3 product experience
Active involvement in the crypto/Web3 community
💡 What We Offer
Opportunity to work in a global blockchain-focused VC fund
Exposure to top-tier Web3 founders and projects
Fully remote work with flexible hours
Competitive compensation with performance-based bonuses
Fast career growth in the venture capital ecosystem
Lean team with minimal bureaucracy and high impact
Company: Nomea VC
Location: Remote
Employment Type: Full-time
Level: Junior+ / Middle
🌐 About Nomea VC
Nomea VC is a venture capital fund focused on blockchain, Web3, DeFi, and decentralized infrastructure. We invest in early-stage startups and actively support founders with strategic guidance, industry expertise, and global connections.
🎯 Responsibilities
Research and analyze early-stage Web3 and blockchain startups (pre-seed / seed)
Conduct investment research and due diligence
Prepare investment memos, pitch decks, and analytical reports
Evaluate tokenomics, business models, and market opportunities
Track and support portfolio companies
Communicate with founders and ecosystem partners
Monitor emerging trends across crypto, DeFi, infrastructure, and Web3
✅ Requirements
1–3 years of experience in venture capital, analytics, consulting, startups, or fintech
Strong analytical and research skills
Solid understanding of the blockchain and Web3 ecosystem
Ability to work with data, financial models, and presentations
Excellent written and verbal communication skills
English proficiency: Upper-Intermediate or higher
➕ Nice to Have
Previous experience in VC or high-growth startups
Knowledge of DeFi, tokenomics, L2s, and blockchain infrastructure
Financial modeling skills
Technical background or hands-on Web3 product experience
Active involvement in the crypto/Web3 community
💡 What We Offer
Opportunity to work in a global blockchain-focused VC fund
Exposure to top-tier Web3 founders and projects
Fully remote work with flexible hours
Competitive compensation with performance-based bonuses
Fast career growth in the venture capital ecosystem
Lean team with minimal bureaucracy and high impact
Payment in Crypto
Ismail Ahmad
Senior iOS developer for GameDev startup
Full time
Remote
Game Concept: “Reflex Arena”
Genre
Real-time competitive 1v1 / 2v2 skill-based action game
Platform
iOS (iPhone first, iPad optional)
Core Idea
A pure skill game where players compete in short, intense arena matches using precision timing, reflexes, and positioning — no RNG, no pay-to-win.
Each match lasts 60–90 seconds, making it ideal for mobile sessions while supporting competitive depth.
Core Gameplay Loop
Matchmaking
Skill-based MMR
Ranked & unranked queues
Arena Match
Small symmetrical arena
Players control a single character
Objective: score points by outplaying, not overpowering
Score & Progress
Win → rank up
Lose → learn (clear replay & stats)
Cosmetics only progression
Controls (Mobile-First, High Precision)
Left thumb: Movement (virtual joystick)
Right thumb: Aim + action swipe
Tap: Ability activation
Perfect timing windows reward precision (parries, counters)
👉 Designed to feel closer to a fighting game than a casual mobile title.
Mechanics (Skill > Stats)
Core Mechanics
Dash with cooldown (positioning skill)
Timed parry (frame-perfect defense)
Charged shots (risk vs reward)
Combo chaining (execution mastery)
No Randomness
Fixed damage
Fixed cooldowns
No crit chance
No loot boxes
Competitive Depth
Skill Expression
Reaction time
Prediction & mind games
Spacing & arena control
Cooldown tracking
Skill Ceiling
Easy to learn (1 minute)
Hard to master (1000+ matches)
Game Modes
Ranked Duel (Main Mode)
1v1
Best of 3 rounds
Seasonal leaderboard
Team Arena
2v2 coordinated play
Shared objectives
Training / Practice
Frame timing visualizer
Ghost replays of top players
Visual Style
Clean, minimalistic sci-fi arenas
High contrast for readability
60–120 FPS target (ProMotion)
👉 Performance clarity > visual noise.
Monetization (Fair & Competitive)
Skins (characters, arenas, effects)
Emotes / victory poses
Battle pass (cosmetic only)
🚫 No power boosts
🚫 No energy timers
🚫 No loot RNG
Technical Design (iOS-Optimized)
Native Swift
Metal / SpriteKit
Deterministic simulation
Server-authoritative logic
Rollback netcode (if real-time PvP)
Genre
Real-time competitive 1v1 / 2v2 skill-based action game
Platform
iOS (iPhone first, iPad optional)
Core Idea
A pure skill game where players compete in short, intense arena matches using precision timing, reflexes, and positioning — no RNG, no pay-to-win.
Each match lasts 60–90 seconds, making it ideal for mobile sessions while supporting competitive depth.
Core Gameplay Loop
Matchmaking
Skill-based MMR
Ranked & unranked queues
Arena Match
Small symmetrical arena
Players control a single character
Objective: score points by outplaying, not overpowering
Score & Progress
Win → rank up
Lose → learn (clear replay & stats)
Cosmetics only progression
Controls (Mobile-First, High Precision)
Left thumb: Movement (virtual joystick)
Right thumb: Aim + action swipe
Tap: Ability activation
Perfect timing windows reward precision (parries, counters)
👉 Designed to feel closer to a fighting game than a casual mobile title.
Mechanics (Skill > Stats)
Core Mechanics
Dash with cooldown (positioning skill)
Timed parry (frame-perfect defense)
Charged shots (risk vs reward)
Combo chaining (execution mastery)
No Randomness
Fixed damage
Fixed cooldowns
No crit chance
No loot boxes
Competitive Depth
Skill Expression
Reaction time
Prediction & mind games
Spacing & arena control
Cooldown tracking
Skill Ceiling
Easy to learn (1 minute)
Hard to master (1000+ matches)
Game Modes
Ranked Duel (Main Mode)
1v1
Best of 3 rounds
Seasonal leaderboard
Team Arena
2v2 coordinated play
Shared objectives
Training / Practice
Frame timing visualizer
Ghost replays of top players
Visual Style
Clean, minimalistic sci-fi arenas
High contrast for readability
60–120 FPS target (ProMotion)
👉 Performance clarity > visual noise.
Monetization (Fair & Competitive)
Skins (characters, arenas, effects)
Emotes / victory poses
Battle pass (cosmetic only)
🚫 No power boosts
🚫 No energy timers
🚫 No loot RNG
Technical Design (iOS-Optimized)
Native Swift
Metal / SpriteKit
Deterministic simulation
Server-authoritative logic
Rollback netcode (if real-time PvP)
Payment in Crypto