Director of Stablecoin Payments — Crypto-Native Execution Lead (EU / East Coast Only)
Status
Berlin, Germany +5
Full time
Remote
Compensation is not specified
Role
CTO
Description
About Notabene:
Notabene is dedicated to integrating cryptocurrency into daily economic operations by developing tools that reduce transaction risk and ensure secure crypto transfers. Operating across three continents in eight countries, the Notabene team supports a diverse community of over 130 customers, including financial institutions, fintech firms, and exchanges.
The company has received significant backing from renowned investors like Y Combinator, DRW, F-Prime, Jump Capital, Castle Island, Green Visor Capital, and others.
About the Role:
As the Director of Stablecoin Payments at Notabene, you will drive the practical execution of the organization's stablecoin strategy by implementing ecosystem knowledge into live integrations and product ventures. Working closely with the CEO, you will oversee the transformation of concepts into tangible payment flows and integrations.
In this role, you will be a key contributor with extensive domain expertise, acting as the bridge between stablecoin markets and Notabene's internal product, engineering, and compliance teams.
Ownership:
- Lead stablecoin integration projects from inception to launch, including partner identification and onboarding
- Translate issuer and protocol requirements into technical specifications in collaboration with product and engineering teams
- Act as the face of Notabene to major players in the crypto ecosystem, such as issuers, liquidity providers, and wallet teams
- Drive experimentation initiatives from concept to implementation to boost transaction volume
- Provide insights derived from market observations for refining product roadmap priorities
Qualifications:
Requirements:
- Minimum 5 years of experience in payments, fintech, or crypto product roles
- At least 2 years of experience at a payment provider, PSP, or similar organization with a focus on integrations
- Deep understanding of stablecoin design, ecosystem participants, and value mechanisms
- Track record of launching or contributing to early-stage products successfully
- Ability to independently lead execution while maintaining alignment with senior leadership
Preferred:
- Exposure to both traditional payment systems and DeFi environments
- Comfort in navigating the regulatory uncertainties within crypto markets
- Previous involvement in wallet infrastructure or embedded finance tools
Benefits:
- Remote work flexibility
- $1000 work-from-home stipend
- MacBook Pro provided to meet your specific needs
- Unlimited paid time off
- Country-specific statutory benefits and contributions managed by the employer-of-record
Apply Today:
If you believe you are a great fit for this role, please submit your application to Notabene. The company welcomes a diverse range of candidates, including those without prior blockchain experience, supporting individuals at different stages of their career journeys.
Notabene upholds an inclusive and diverse work environment and strictly prohibits discrimination based on various characteristics.
Note: We suggest utilizing valid Markdown format for rewriting the job description.
Skills Required
Notabene
Website
notabene.idCompany size
Not specified
Location
United Kingdom
Description
Not specified
Status
Mykhailo Liashenko
Smart Contract Engineer
Part time
Remote
Company Information
RWAHub is a Web3 platform focused on real-world asset (RWA) tokenization, bridging traditional assets such as real estate, luxury goods, and art with blockchain technology.
We are building a scalable decentralized ecosystem that enables asset owners, investors, and DeFi participants to interact in a unified, transparent marketplace powered by tokenized finance.
Our mission is to improve accessibility, liquidity, and transparency in global asset ownership using blockchain infrastructure.
For general inquiries, contact:
support@rwahubassets.com
Senior Blockchain Developer
Location: Remote (Global)
Type: Full-time / Part-time
About the Role
We are hiring a Senior Blockchain Developer to design and build smart contract systems across multiple client and internal projects.
You will work on a variety of blockchain applications - from DeFi protocols to tokenized asset systems and Web3 platforms - ensuring high standards in security, scalability, and architecture.
This is a senior-level, hands-on role with exposure to multiple products and industries.
What You’ll Do
Design, develop, and deploy smart contracts using Solidity
Implement token standards (ERC-20, ERC-721, ERC-1155) and custom logic
Build and maintain contract architectures across multiple projects
Ensure security, audit readiness, and upgradeability
Optimize gas usage and performance
Collaborate with backend and frontend teams for integrations
Participate in code reviews and technical decision-making
Contribute to documentation and internal best practices
What We’re Looking For
4+ years of experience in blockchain / smart contract development
Strong expertise in Solidity and EVM-based ecosystems
Experience with Ethereum and L2s (Polygon, Arbitrum, Optimism)
Strong understanding of smart contract security and vulnerabilities
Experience with Hardhat, Foundry, or similar frameworks
Strong software engineering fundamentals (testing, Git, CI/CD)
Ability to work across multiple projects and adapt quickly
Nice to Have
Experience with DeFi protocols, staking, or token economies
Experience working with auditors or security reviews
Familiarity with upgradeable contracts (proxy patterns)
Backend experience (Node.js / TypeScript)
Experience in client-facing or consulting environments
Tech Stack
Solidity · Ethereum · Polygon · Arbitrum
Hardhat / Foundry · Node.js · TypeScript
React · ethers.js · IPFS
Why Join
Work across a diverse portfolio of blockchain projects
Exposure to both client work and internal ventures
Opportunity to influence architecture and technical direction
Collaborative, globally distributed team
Fast-paced environment with continuous learning
What Success Looks Like
Secure, production-ready smart contracts delivered across projects
Successful audits with minimal critical issues
Scalable and reusable contract architectures
Strong collaboration with cross-functional teams
Consistent delivery across multiple initiatives
Hiring Process
Application review
Technical screening (take-home task)
Technical interview (Solidity & architecture)
Final discussion
How to Apply
Please submit:
Resume or LinkedIn
GitHub profile (required)
Examples of smart contracts or blockchain projects
📩 Applications & inquiries: support@rwahubassets.com
RWAHub is a Web3 platform focused on real-world asset (RWA) tokenization, bridging traditional assets such as real estate, luxury goods, and art with blockchain technology.
We are building a scalable decentralized ecosystem that enables asset owners, investors, and DeFi participants to interact in a unified, transparent marketplace powered by tokenized finance.
Our mission is to improve accessibility, liquidity, and transparency in global asset ownership using blockchain infrastructure.
For general inquiries, contact:
support@rwahubassets.com
Senior Blockchain Developer
Location: Remote (Global)
Type: Full-time / Part-time
About the Role
We are hiring a Senior Blockchain Developer to design and build smart contract systems across multiple client and internal projects.
You will work on a variety of blockchain applications - from DeFi protocols to tokenized asset systems and Web3 platforms - ensuring high standards in security, scalability, and architecture.
This is a senior-level, hands-on role with exposure to multiple products and industries.
What You’ll Do
Design, develop, and deploy smart contracts using Solidity
Implement token standards (ERC-20, ERC-721, ERC-1155) and custom logic
Build and maintain contract architectures across multiple projects
Ensure security, audit readiness, and upgradeability
Optimize gas usage and performance
Collaborate with backend and frontend teams for integrations
Participate in code reviews and technical decision-making
Contribute to documentation and internal best practices
What We’re Looking For
4+ years of experience in blockchain / smart contract development
Strong expertise in Solidity and EVM-based ecosystems
Experience with Ethereum and L2s (Polygon, Arbitrum, Optimism)
Strong understanding of smart contract security and vulnerabilities
Experience with Hardhat, Foundry, or similar frameworks
Strong software engineering fundamentals (testing, Git, CI/CD)
Ability to work across multiple projects and adapt quickly
Nice to Have
Experience with DeFi protocols, staking, or token economies
Experience working with auditors or security reviews
Familiarity with upgradeable contracts (proxy patterns)
Backend experience (Node.js / TypeScript)
Experience in client-facing or consulting environments
Tech Stack
Solidity · Ethereum · Polygon · Arbitrum
Hardhat / Foundry · Node.js · TypeScript
React · ethers.js · IPFS
Why Join
Work across a diverse portfolio of blockchain projects
Exposure to both client work and internal ventures
Opportunity to influence architecture and technical direction
Collaborative, globally distributed team
Fast-paced environment with continuous learning
What Success Looks Like
Secure, production-ready smart contracts delivered across projects
Successful audits with minimal critical issues
Scalable and reusable contract architectures
Strong collaboration with cross-functional teams
Consistent delivery across multiple initiatives
Hiring Process
Application review
Technical screening (take-home task)
Technical interview (Solidity & architecture)
Final discussion
How to Apply
Please submit:
Resume or LinkedIn
GitHub profile (required)
Examples of smart contracts or blockchain projects
📩 Applications & inquiries: support@rwahubassets.com
Payment in Crypto
NextBit Marketing LLC
Business development Manager
Full time
Remote
Hey everyone,
I’m looking for recommendations or to connect directly with a marketing team / agency that genuinely understands the Forex trading space — especially community-led growth.
I run many public XAUUSD signals Telegram channel that has grown organically to 12,000+ members over the years (since 2020). No ads, no clickbait, no fake screenshots. The channel is completely free and will stay that way because the core idea has always been transparency and live testing rather than selling promises.
A few things about the community:
• Signals focused only on FX & XAUUSD
• Consistent average accuracy around ~78%
• Clear risk management & lot sizing shared with every setup
• Priority is always capital protection, not overtrading
• Everything is public so anyone can track performance in real time for as long as they want
The growth so far has been word-of-mouth and organic, but now I want to scale this community responsibly and reach 100,000+ free members this year without turning it into a hype machine.
I’m not looking for generic social media marketers. I’m specifically interested in people/agencies who:
• Understand traders, not just traffic
• Can grow communities ethically and sustainably
• Know how to position transparency as a strength (not fake luxury marketing)
• Have experience with Telegram / Instagram / Reddit / Trading communities
If you’re a marketer in this niche, or you’ve worked with someone solid before, I’d really appreciate guidance, referrals, or a conversation.
Thanks in advance 🙏
Happy to share more details in DMs.
I’m looking for recommendations or to connect directly with a marketing team / agency that genuinely understands the Forex trading space — especially community-led growth.
I run many public XAUUSD signals Telegram channel that has grown organically to 12,000+ members over the years (since 2020). No ads, no clickbait, no fake screenshots. The channel is completely free and will stay that way because the core idea has always been transparency and live testing rather than selling promises.
A few things about the community:
• Signals focused only on FX & XAUUSD
• Consistent average accuracy around ~78%
• Clear risk management & lot sizing shared with every setup
• Priority is always capital protection, not overtrading
• Everything is public so anyone can track performance in real time for as long as they want
The growth so far has been word-of-mouth and organic, but now I want to scale this community responsibly and reach 100,000+ free members this year without turning it into a hype machine.
I’m not looking for generic social media marketers. I’m specifically interested in people/agencies who:
• Understand traders, not just traffic
• Can grow communities ethically and sustainably
• Know how to position transparency as a strength (not fake luxury marketing)
• Have experience with Telegram / Instagram / Reddit / Trading communities
If you’re a marketer in this niche, or you’ve worked with someone solid before, I’d really appreciate guidance, referrals, or a conversation.
Thanks in advance 🙏
Happy to share more details in DMs.
Payment in Crypto
Adam Miller
Web3 Game Developer (UE5 + Blockchain & Smart Contracts)
Full time
Remote
Rivwake is an ambitious early-stage Web3 metaverse project built on Unreal Engine 5.
We are creating Overworld — an immersive metaverse with a strong focus on User Generated Content (UGC). Players will be able to play, create worlds, games, and assets.
The first game is Strifest — a competitive team-based arena shooter with building mechanics.
The project combines high-quality UE5 gameplay with real blockchain economy: NFT rewards, staking, tokens, and creator economy.
Who We Are Looking For (Two Main Roles):
1. Web3 Game Developer (Primary Role)
Web3 integration into UE5 (wallet connect, NFT minting/claiming, staking)
Smart contract development (Solidity)
Backend flow between the game and blockchain
P2E mechanics and token economy
2. Web3 Game QA Tester / Blockchain Tester
Testing NFT rewards, staking, and claiming mechanics
Testing Web3 integrations (wallets, transactions, on-chain events)
Finding and reporting blockchain-related bugs
Regression testing after updates
Testing economy and anti-exploit systems
Requirements:
For Developer:
Strong experience with Solidity and Smart Contracts
Web3 integration (wallets, NFT, staking)
Unreal Engine 5 experience is a big plus
For Tester:
Experience in Game QA or Web3/P2E testing
Good knowledge of blockchain and NFT mechanics
Ability to write detailed bug reports
Basic understanding of UE5 is a plus
General Conditions (for both roles):
Long-term collaboration (starting from 2-3 months)
30–40 hours per week
Fully remote
Rate: $55 – 85 / hour (depending on role and experience)
We are at an early alpha stage. We provide test access to the project and documentation. There is a possibility of equity / token allocation for strong candidates who stay with the project long-term.
We are creating Overworld — an immersive metaverse with a strong focus on User Generated Content (UGC). Players will be able to play, create worlds, games, and assets.
The first game is Strifest — a competitive team-based arena shooter with building mechanics.
The project combines high-quality UE5 gameplay with real blockchain economy: NFT rewards, staking, tokens, and creator economy.
Who We Are Looking For (Two Main Roles):
1. Web3 Game Developer (Primary Role)
Web3 integration into UE5 (wallet connect, NFT minting/claiming, staking)
Smart contract development (Solidity)
Backend flow between the game and blockchain
P2E mechanics and token economy
2. Web3 Game QA Tester / Blockchain Tester
Testing NFT rewards, staking, and claiming mechanics
Testing Web3 integrations (wallets, transactions, on-chain events)
Finding and reporting blockchain-related bugs
Regression testing after updates
Testing economy and anti-exploit systems
Requirements:
For Developer:
Strong experience with Solidity and Smart Contracts
Web3 integration (wallets, NFT, staking)
Unreal Engine 5 experience is a big plus
For Tester:
Experience in Game QA or Web3/P2E testing
Good knowledge of blockchain and NFT mechanics
Ability to write detailed bug reports
Basic understanding of UE5 is a plus
General Conditions (for both roles):
Long-term collaboration (starting from 2-3 months)
30–40 hours per week
Fully remote
Rate: $55 – 85 / hour (depending on role and experience)
We are at an early alpha stage. We provide test access to the project and documentation. There is a possibility of equity / token allocation for strong candidates who stay with the project long-term.
TA Quant
Senior Rust Developer
Full time
Remote
About the Role
We're looking for a Senior Rust Developer to join our core engineering team and own the systems that sit closest to the market. This means low-latency order execution engines, high-throughput market data pipelines, real-time streaming infrastructure, and integrations with both centralized and decentralized exchanges. Every millisecond and every line of code matters here, and you'll be the person making sure it all holds up under pressure. This is not a role for someone who wants to write Rust adjacent to trading. You'll be building the backbone of live production systems where correctness, safety, and raw performance have direct P&L consequences. You'll work alongside quantitative researchers and other engineers to implement and deploy strategies, and you'll have meaningful input into the infrastructure decisions that shape how we build and scale. If you've spent years pushing Rust to its limits in high-performance environments and you want that work to matter in real markets in real time, this is the role.
Responsibilities
Design, build, and maintain high-throughput, low-latency trading systems in Rust
Develop and optimize order execution engines, market data feeds, and real-time processing pipelines
Build reliable integrations with centralized and decentralized exchanges across CEX and DEX environments
Architect systems for real-time streaming data and WebSocket communication at scale
Write safe, well-tested concurrent code leveraging async runtimes including Tokio and async-std
Collaborate with quantitative researchers to implement and deploy trading strategies into production
Profile, benchmark, and eliminate performance bottlenecks across critical system paths
Contribute to infrastructure decisions around deployment, observability, and fault tolerance
Requirements
5+ years of professional software engineering experience
2+ years building and maintaining production systems in Rust, and you will be tested on it
Deep command of Rust's ownership model, lifetimes, traits, and async patterns
Experience with high-performance networking including TCP/UDP, WebSockets, and gRPC
Strong understanding of concurrency primitives and lock-free data structures
Familiarity with financial systems, trading platforms, or real-time data pipelines
Linux systems programming and performance tuning experience
Comfortable working independently in a fast-paced, remote-first environment
Nice to Have
Experience with cryptocurrency exchanges, DeFi protocols, or blockchain RPC nodes
Knowledge of FIX protocol or other financial messaging standards
Open-source Rust contributions
Experience with FPGA or kernel-bypass networking such as DPDK or io_uring
Familiarity with quantitative trading concepts including order books and market microstructure
Infrastructure experience with Docker, Kubernetes, Terraform, or Prometheus/Grafana
We're looking for a Senior Rust Developer to join our core engineering team and own the systems that sit closest to the market. This means low-latency order execution engines, high-throughput market data pipelines, real-time streaming infrastructure, and integrations with both centralized and decentralized exchanges. Every millisecond and every line of code matters here, and you'll be the person making sure it all holds up under pressure. This is not a role for someone who wants to write Rust adjacent to trading. You'll be building the backbone of live production systems where correctness, safety, and raw performance have direct P&L consequences. You'll work alongside quantitative researchers and other engineers to implement and deploy strategies, and you'll have meaningful input into the infrastructure decisions that shape how we build and scale. If you've spent years pushing Rust to its limits in high-performance environments and you want that work to matter in real markets in real time, this is the role.
Responsibilities
Design, build, and maintain high-throughput, low-latency trading systems in Rust
Develop and optimize order execution engines, market data feeds, and real-time processing pipelines
Build reliable integrations with centralized and decentralized exchanges across CEX and DEX environments
Architect systems for real-time streaming data and WebSocket communication at scale
Write safe, well-tested concurrent code leveraging async runtimes including Tokio and async-std
Collaborate with quantitative researchers to implement and deploy trading strategies into production
Profile, benchmark, and eliminate performance bottlenecks across critical system paths
Contribute to infrastructure decisions around deployment, observability, and fault tolerance
Requirements
5+ years of professional software engineering experience
2+ years building and maintaining production systems in Rust, and you will be tested on it
Deep command of Rust's ownership model, lifetimes, traits, and async patterns
Experience with high-performance networking including TCP/UDP, WebSockets, and gRPC
Strong understanding of concurrency primitives and lock-free data structures
Familiarity with financial systems, trading platforms, or real-time data pipelines
Linux systems programming and performance tuning experience
Comfortable working independently in a fast-paced, remote-first environment
Nice to Have
Experience with cryptocurrency exchanges, DeFi protocols, or blockchain RPC nodes
Knowledge of FIX protocol or other financial messaging standards
Open-source Rust contributions
Experience with FPGA or kernel-bypass networking such as DPDK or io_uring
Familiarity with quantitative trading concepts including order books and market microstructure
Infrastructure experience with Docker, Kubernetes, Terraform, or Prometheus/Grafana
Payment in Crypto
DeGameVerse
UI/UX Designer
Part time
Remote
About DeGameVerse
DeGameVerse is building a next-generation Web3 gaming ecosystem where developers create games and players explore, play, and earn through a unified platform experience.
We are focused on:
Walletless onboarding
Mobile-first gaming experience
AI-assisted game creation
Clean and accessible Web3 UX
This is an early-stage startup currently building its core founding team.
Role Overview
We are looking for a creative UI/UX Designer who can help shape the visual identity and user experience of DeGameVerse.
You will work closely with the founder and development team to design a smooth, modern, and engaging platform experience for both players and developers.
This is a startup builder role with high creative ownership.
Responsibilities
Design user-friendly interfaces for web and mobile
Create UI flows for player dashboard, developer dashboard, and game hub
Build consistent design systems and reusable components
Improve user onboarding and overall UX experience
Design wireframes, mockups, and interactive prototypes
Collaborate closely with developers during implementation
Ensure responsive and modern UI standards
Requirements
Experience with Figma or similar design tools
Strong understanding of UI/UX principles
Ability to create clean, modern, and intuitive interfaces
Good communication and collaboration skills
Startup mindset and problem-solving ability
Bonus Skills
Experience designing gaming or Web3 products
Motion UI / animation knowledge
Basic frontend understanding (HTML/CSS/React concepts)
Experience with mobile-first design systems
What We Offer
Early core team opportunity
Equity-based contribution model
High creative freedom and ownership
Opportunity to help shape a new Web3 gaming ecosystem
Portfolio-level product design experience
⚠️ Important Note
This is an early-stage startup role.
No fixed salary initially. Compensation is equity-based until funding or revenue is secured.
DeGameVerse is building a next-generation Web3 gaming ecosystem where developers create games and players explore, play, and earn through a unified platform experience.
We are focused on:
Walletless onboarding
Mobile-first gaming experience
AI-assisted game creation
Clean and accessible Web3 UX
This is an early-stage startup currently building its core founding team.
Role Overview
We are looking for a creative UI/UX Designer who can help shape the visual identity and user experience of DeGameVerse.
You will work closely with the founder and development team to design a smooth, modern, and engaging platform experience for both players and developers.
This is a startup builder role with high creative ownership.
Responsibilities
Design user-friendly interfaces for web and mobile
Create UI flows for player dashboard, developer dashboard, and game hub
Build consistent design systems and reusable components
Improve user onboarding and overall UX experience
Design wireframes, mockups, and interactive prototypes
Collaborate closely with developers during implementation
Ensure responsive and modern UI standards
Requirements
Experience with Figma or similar design tools
Strong understanding of UI/UX principles
Ability to create clean, modern, and intuitive interfaces
Good communication and collaboration skills
Startup mindset and problem-solving ability
Bonus Skills
Experience designing gaming or Web3 products
Motion UI / animation knowledge
Basic frontend understanding (HTML/CSS/React concepts)
Experience with mobile-first design systems
What We Offer
Early core team opportunity
Equity-based contribution model
High creative freedom and ownership
Opportunity to help shape a new Web3 gaming ecosystem
Portfolio-level product design experience
⚠️ Important Note
This is an early-stage startup role.
No fixed salary initially. Compensation is equity-based until funding or revenue is secured.