Cairo Developer

Full time
Remote
Compensation is not specified
Role
Software Engineer
Description

We are a dynamic team of innovators and researchers dedicated to enabling enterprises and developers globally to leverage and contribute to decentralized systems.

Our seasoned expertise spans across various areas including Ethereum and Starknet protocol engineering, layer-2 solutions, cryptography, DeFi, security assessments, formal verification, real-time monitoring, smart contract creation, as well as enterprise and dapp engineering.

Collaborating with key entities such as Ethereum Foundation, Starknet Foundation, and many others, we are at the forefront of tackling complex challenges within the blockchain space. Our diverse team of over 350 individuals operates remotely from more than 66 countries.

Why Join Us?

If you have a vision for pioneering advancements in AI and ZK technology, joining our team at Nethermind presents an exceptional opportunity to bring that vision to fruition.

We are currently looking to add talented Cairo Developers to our expanding AI and ZK group. Successful candidates will play a pivotal role in conducting research, designing, implementing, and optimizing protocols and applications critical to the progress of Ethereum, Starknet, and Web3.

Responsibilities:

  • Develop and deploy scalable and secure smart contracts, dApps, and ZK protocols utilizing the Cairo programming language.
  • Work closely with multidisciplinary teams including cryptographers, mathematicians, and blockchain engineers to integrate advanced cryptographic techniques and algorithms.
  • Optimize Cairo code for enhanced performance, cost efficiency, and security to ensure the scalability of our solutions.
  • Contribute to the improvement of Cairo tooling, compilers, and documentation, enhancing the developer experience.
  • Stay abreast of the latest blockchain technology advancements, cryptographic trends, and developments within the Ethereum ecosystem by actively engaging in relevant communities and conferences.

Skills Required:

  • Demonstrated expertise in developing smart contracts using Cairo.
  • Strong grasp of cryptography, zero-knowledge proofs, and their applications in blockchain technology.
  • Knowledge of the Ethereum ecosystem, including EVM, Layer 2 scaling solutions, and Web3 technologies.
  • Exceptional problem-solving, analytical thinking, and critical reasoning abilities.
  • Effective communication and collaboration skills essential for productive teamwork.
  • Enthusiasm for decentralized technologies, cryptography, and the transformative potential of Web3 across industries.

Desired Skills:

  • Familiarity with zk proof systems (ZK-STARK, ZK-SNARKs).
  • Background in cryptography or mathematics.
  • Active participation in GitHub projects indicated by submitted projects or PRs to external repositories.

Please note that by applying, you consent to your information being stored and processed according to UK GDPR standards. Kindly refer to our privacy policy for detailed information regarding data processing.

Stay updated on our initiatives by following our social channels on Twitter, Discord, and LinkedIn.

Click here to view our Privacy Policy.

Skills Required
Avatar
Nethermind
Company size
Not specified
Location
United States
Description
Not specified

More Full-time Jobs

Show more

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
Payment in Crypto
3,333-5,833
Monthly
See details

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)
Payment in Crypto
7,500-8,750
Monthly
See details

Rust/blockchain

Houston, USA
Houston, USA
Part time
Remote
I am seeking a world-class Systems Engineer / Rust Architect to build a proprietary asset extraction engine on the Solana network. This is not a "Web3 App" or a "DEX UI." This is a purely backend, low-latency machine designed to capture micro-value from market volatility.​The system mimics a "digital sluice," using high-precision math to harvest fractional differences that standard rounded-math bots ignore. We are scaling from a prototype to a 30-node distributed network managing 100+ concurrent execution "hands."​Core Technical Requirements​Low-Level Rust Mastery: You must be an expert in the Tokio runtime, asynchronous programming, and memory-safe mathematical operations.​Solana Network Physics: Deep understanding of the Sealevel runtime, custom WebSocket/Lumen bridges, and avoiding gRPC bottlenecks.​Jito & MEV Optimization: Proven experience with Jito Bundles, transaction shredding, and tip-optimization to ensure first-block inclusion.​Distributed Orchestration: Ability to architect a master-node system that manages 30+ regional nodes with seamless failover and zero-loss state management.​Precision Math: All logic must operate on u64 integers (Lamports) to avoid floating-point rounding errors. We do not "round" to the dollar; we capture the 9th decimal.​Key Responsibilities​Engine Hardening: Audit and optimize the core Rust logic for 0-latency execution.​Node Orchestration: Build the "Master Switch" to deploy, monitor, and update 30 nodes across global regions simultaneously.​The "Tax" Logic: Implement a secure, automated "sweeper" protocol that collects fractional value from all child-nodes into a master treasury without interrupting execution.​Redundancy: Ensure the system is "Anti-Fragile"—if a validator or node fails, the 50-drop safety protocol must trigger an instant failover.
Payment in Crypto
3,000
Monthly
See details

Chief Business Development Officer (CBDO)

Full time
Remote
We're seeking an experienced Chief Business Development Officer to drive our growth strategy and establish key partnerships in the crypto/web3 space. As CBDO, you'll be responsible for identifying new business opportunities, building strategic relationships, and expanding our market presence globally.
Key Responsibilities:
Develop and execute comprehensive business development strategies aligned with company vision
Identify and pursue strategic partnerships, collaborations, and integration opportunities with protocols, exchanges, and web3 projects
Lead negotiations for high-value deals and partnerships
Build and maintain relationships with key stakeholders, investors, and industry leaders
Analyze market trends and competitive landscape to identify growth opportunities
Represent the company at conferences, events, and in the broader crypto community
Collaborate with product, marketing, and technical teams to align BD initiatives
Drive revenue growth through new channels and business models
Manage and mentor the business development team
Report directly to CEO on BD performance metrics and pipeline
Payment in Crypto
8,000-10,000
Monthly
See details

Quant Researcher Lead

Full time
Remote
Define research direction, manage the research team, and drive innovation in quantitative strategy development. You'll set the strategic vision for our quantitative research efforts, build and lead a world-class team of researchers, and ensure we maintain a competitive edge in increasingly sophisticated markets. This role requires exceptional track record in developing successful trading strategies, deep understanding of market dynamics across multiple asset classes, and proven leadership in building research organizations that consistently deliver alpha while fostering a culture of innovation and intellectual rigor.
Responsibilities:
Set research priorities and team roadmap
Lead and mentor the quantitative research team
Develop cutting-edge trading strategies and methodologies
Present research findings to leadership and stakeholders
Payment in Crypto
3,500-4,000
Monthly
See details