Senior Software Developer - Ruby on Rails
Taipei, Taiwan
Full time
Hybrid
Compensation is not specified
Role
Full-Stack Engineer
Description
Our team focuses on designing, developing, maintaining, and enhancing software for a range of venture projects closely related to our core businesses. These projects are swiftly launched with a lean team. As a team member, you will actively contribute to crafting various components that power scalable applications, encompassing frontend UI to backend infrastructure.
Responsibilities
- Conduct development tasks such as backend service and operation development, suggesting architectural choices, engaging in designs, design reviews, coding, code reviews, and product implementations connecting developers and end-users.
- Enhance retail trading products and expand offerings to new regions and countries.
- Identify and address issues in complex problems within large-scale backend infrastructure.
- Deliver reliable and responsive trading information streams to customers.
- Offer technical operational support for resolving customer issues.
- Take ownership of projects and foster innovation by embracing new technologies and encouraging experimentation.
- Collaborate closely with the DevOps and Infrastructure teams to enhance the technology stack for long-term engineering initiatives.
- Manage documentation for all implemented code and functionalities.
Requirements
- Passion for constructing high-quality products to solve real-world challenges, adept at various technologies, self-driven, quick at learning, and possess a proactive mindset to get tasks accomplished.
- Willingness to accept superior ideas from others, eager to improve processes, and open to challenges and opportunities.
- Strong organizational and interpersonal skills with the ability to manage conflicting requirements from various stakeholders.
- Familiarity with financial domain knowledge and/or Blockchain technology is advantageous.
- Proficiency in Ruby, with experience in other programming languages being a plus.
- Proficiency in Postgres, Redis, and Kafka is desirable.
- Experienced in addressing scalability, security, and performance optimizations.
Benefits
- Competitive salary.
- Generous annual leave entitlement, including birthday and work anniversary.
- Flexibility with work hours, including hybrid or remote setups.
- Internal mobility program providing career advancement opportunities.
- Work perks, such as a crypto.com visa card upon joining.
If you are eager to embark on an exciting career with us, join our talented, ambitious, and supportive team to explore new opportunities and make a significant impact on your personal and professional growth.
About Crypto.com: Founded in 2016, Crypto.com boasts over 80 million customers and is the rapidly growing global cryptocurrency platform. Our mission is straightforward: Cryptocurrency in Every Wallet™. With a commitment to security, privacy, and compliance, Crypto.com aims to drive cryptocurrency adoption through innovation and empower a more equitable digital ecosystem for future generations.
Apply now and be part of our diverse and inclusive team dedicated to creating a fair and transparent environment for everyone.
Skills Required
Сrypto.com
Website
Сrypto.comCompany size
Not specified
Location
United States
Description
Not specified
Princewill Tor-Anyiin
TEAM members needed for my Start-up Pan-African Web3 project
Benue, Nigeria
Benue, Nigeria
Full time
Remote
AFRO-NODE: Join the Pan-African Web3 Revolution on TON!🚀
We're thrilled to announce that AFRO-NODE, a dual ecosystem on The Open Network (TON), has been shortlisted for a Grant! 🎉 To take our project to the next level, we're looking for talented FunC and Tact smart contract developers to help build out our Minimum Viable Product (MVP), Jetton Master Contract for our Utility Token $ANODE
What We're Looking For:
- Experienced developers with expertise in FunC and Tact
- Strong understanding of smart contract security and best practices
- Ability to work collaboratively in a fast-paced environment
What We Offer:
- Pre-TGE $ANODE utility tokens for early contributors
- Opportunity to be part of a pioneering Pan-African Web3 project
- Collaborative and dynamic community with a shared vision
- Stipends from VC Investor Grant.
How to Join:
DM me with your:
1. Summary of your Blockchain/Web3 Skills & Experience.
2. Your means of verification i.e social media handles
3. Email
4. Country
5. Full Name.
Contact me @ : https://t.me/afronodeWeb3
Please these are important due to the seriousness of the Financial Grant from VC Investor & Accelerator involved.
Thank you ❤️
We're thrilled to announce that AFRO-NODE, a dual ecosystem on The Open Network (TON), has been shortlisted for a Grant! 🎉 To take our project to the next level, we're looking for talented FunC and Tact smart contract developers to help build out our Minimum Viable Product (MVP), Jetton Master Contract for our Utility Token $ANODE
What We're Looking For:
- Experienced developers with expertise in FunC and Tact
- Strong understanding of smart contract security and best practices
- Ability to work collaboratively in a fast-paced environment
What We Offer:
- Pre-TGE $ANODE utility tokens for early contributors
- Opportunity to be part of a pioneering Pan-African Web3 project
- Collaborative and dynamic community with a shared vision
- Stipends from VC Investor Grant.
How to Join:
DM me with your:
1. Summary of your Blockchain/Web3 Skills & Experience.
2. Your means of verification i.e social media handles
3. Email
4. Country
5. Full Name.
Contact me @ : https://t.me/afronodeWeb3
Please these are important due to the seriousness of the Financial Grant from VC Investor & Accelerator involved.
Thank you ❤️
Payment in Crypto
Winter Mute
Solidity Developer
Full time
Remote
⚡ About Wintermute
Wintermute is a leading algorithmic trading firm and liquidity provider in the digital assets space. We pioneer solutions across CeFi and DeFi, driving efficiency and innovation in global crypto markets. Join us to shape the future of finance!
🛠️ Responsibilities
Design, develop, and audit secure, gas-optimized smart contracts in Solidity.
Integrate with DeFi protocols (DEXs, lending, derivatives, oracles).
Collaborate with frontend teams to implement contract functionality.
Write comprehensive unit/integration tests (e.g., Hardhat, Foundry).
Research emerging EVM standards, L2 solutions, and security practices.
Participate in code reviews and protocol architecture discussions.
⭐ Requirements
6+ months of hands-on Solidity development experience.
Portfolio of deployed/maintained smart contracts (GitHub links required).
Deep understanding of:
EVM architecture & gas optimization
Security vulnerabilities (reentrancy, oracle exploits, etc.)
DeFi mechanics (AMMs, liquidations, staking)
Proficiency with: Hardhat/Foundry, Ethers.js, Git.
Fluency in English (written/spoken).
Passion for blockchain’s potential.
🌟 Preferred
Experience with MEV strategies, L2s (Optimism, Arbitrum, zkSync), or cross-chain bridges.
Knowledge of Python, Rust, or Go.
Background in math/finance/trading.
🎁 Benefits
Competitive salary + performance bonuses.
Remote-first flexibility & async collaboration.
Continuous learning (conferences, courses, research).
Exposure to cutting-edge DeFi/TradFi infrastructure.
Collaborative culture of crypto-native innovators.
Wintermute is a leading algorithmic trading firm and liquidity provider in the digital assets space. We pioneer solutions across CeFi and DeFi, driving efficiency and innovation in global crypto markets. Join us to shape the future of finance!
🛠️ Responsibilities
Design, develop, and audit secure, gas-optimized smart contracts in Solidity.
Integrate with DeFi protocols (DEXs, lending, derivatives, oracles).
Collaborate with frontend teams to implement contract functionality.
Write comprehensive unit/integration tests (e.g., Hardhat, Foundry).
Research emerging EVM standards, L2 solutions, and security practices.
Participate in code reviews and protocol architecture discussions.
⭐ Requirements
6+ months of hands-on Solidity development experience.
Portfolio of deployed/maintained smart contracts (GitHub links required).
Deep understanding of:
EVM architecture & gas optimization
Security vulnerabilities (reentrancy, oracle exploits, etc.)
DeFi mechanics (AMMs, liquidations, staking)
Proficiency with: Hardhat/Foundry, Ethers.js, Git.
Fluency in English (written/spoken).
Passion for blockchain’s potential.
🌟 Preferred
Experience with MEV strategies, L2s (Optimism, Arbitrum, zkSync), or cross-chain bridges.
Knowledge of Python, Rust, or Go.
Background in math/finance/trading.
🎁 Benefits
Competitive salary + performance bonuses.
Remote-first flexibility & async collaboration.
Continuous learning (conferences, courses, research).
Exposure to cutting-edge DeFi/TradFi infrastructure.
Collaborative culture of crypto-native innovators.
Payment in Crypto
Melani Melani
Audit for KIY Ecosystem
Full time
Remote
🚀 KIY ECOSYSTEM – Core Team Members Needed!
We're building something big in Web3 Security & User Acquisition, backed by proven Web2 security veterans and crypto OGs. Now looking to expand our Core Team for 3 early-stage projects under the KIY Ecosystem:
🔍 Open Roles (for each project)
C-Suite
• CEO
• CMO
• CSO
Advisors
• Blockchain
• Tokenomics
• Technical
• Legal
• Audit
📍 Remote-first | GMT+8 Preferred
💰 Compensation: Token allocation
🧩 What We're AboutWe're a crypto-blockchain security team led by founders who’ve previously scaled Web2 security ventures. Now, we're building a decentralized ecosystem focused on protecting users and onboarding the next billion into Web3.
✅ What We’re Looking For
Strategic Partners & Leaders with:
• 2+ years in Crypto/DeFi
• Existing industry network
• Strong communication & ability to drive ecosystem growth
🤝 Your Mission:
• Build strategic partnerships across DeFi (DEXs, LPs, Institutions)
• Help shape tokenomics, product-market fit, and GTM
• Be part of a security-first movement in Web3
📩 Interested or know someone perfect for this?
Referrals welcome — we offer commissions!
Reach out at rendy@keepityourself.com
with
Subject : [Position](space)[Full Name]
Including CV and LinkedIn Profile
Thanks!
We're building something big in Web3 Security & User Acquisition, backed by proven Web2 security veterans and crypto OGs. Now looking to expand our Core Team for 3 early-stage projects under the KIY Ecosystem:
🔍 Open Roles (for each project)
C-Suite
• CEO
• CMO
• CSO
Advisors
• Blockchain
• Tokenomics
• Technical
• Legal
• Audit
📍 Remote-first | GMT+8 Preferred
💰 Compensation: Token allocation
🧩 What We're AboutWe're a crypto-blockchain security team led by founders who’ve previously scaled Web2 security ventures. Now, we're building a decentralized ecosystem focused on protecting users and onboarding the next billion into Web3.
✅ What We’re Looking For
Strategic Partners & Leaders with:
• 2+ years in Crypto/DeFi
• Existing industry network
• Strong communication & ability to drive ecosystem growth
🤝 Your Mission:
• Build strategic partnerships across DeFi (DEXs, LPs, Institutions)
• Help shape tokenomics, product-market fit, and GTM
• Be part of a security-first movement in Web3
📩 Interested or know someone perfect for this?
Referrals welcome — we offer commissions!
Reach out at rendy@keepityourself.com
with
Subject : [Position](space)[Full Name]
Including CV and LinkedIn Profile
Thanks!
Payment in Crypto
Melani Melani
Technical for KIY Ecosystem
Full time
Remote
🚀 KIY ECOSYSTEM – Core Team Members Needed!
We're building something big in Web3 Security & User Acquisition, backed by proven Web2 security veterans and crypto OGs. Now looking to expand our Core Team for 3 early-stage projects under the KIY Ecosystem:
🔍 Open Roles (for each project)
C-Suite
• CEO
• CMO
• CSO
Advisors
• Blockchain
• Tokenomics
• Technical
• Legal
• Audit
📍 Remote-first | GMT+8 Preferred
💰 Compensation: Token allocation
🧩 What We're AboutWe're a crypto-blockchain security team led by founders who’ve previously scaled Web2 security ventures. Now, we're building a decentralized ecosystem focused on protecting users and onboarding the next billion into Web3.
✅ What We’re Looking For
Strategic Partners & Leaders with:
• 2+ years in Crypto/DeFi
• Existing industry network
• Strong communication & ability to drive ecosystem growth
🤝 Your Mission:
• Build strategic partnerships across DeFi (DEXs, LPs, Institutions)
• Help shape tokenomics, product-market fit, and GTM
• Be part of a security-first movement in Web3
📩 Interested or know someone perfect for this?
Referrals welcome — we offer commissions!
Reach out at rendy@keepityourself.com
with
Subject : [Position](space)[Full Name]
Including CV and LinkedIn Profile
Thanks!
We're building something big in Web3 Security & User Acquisition, backed by proven Web2 security veterans and crypto OGs. Now looking to expand our Core Team for 3 early-stage projects under the KIY Ecosystem:
🔍 Open Roles (for each project)
C-Suite
• CEO
• CMO
• CSO
Advisors
• Blockchain
• Tokenomics
• Technical
• Legal
• Audit
📍 Remote-first | GMT+8 Preferred
💰 Compensation: Token allocation
🧩 What We're AboutWe're a crypto-blockchain security team led by founders who’ve previously scaled Web2 security ventures. Now, we're building a decentralized ecosystem focused on protecting users and onboarding the next billion into Web3.
✅ What We’re Looking For
Strategic Partners & Leaders with:
• 2+ years in Crypto/DeFi
• Existing industry network
• Strong communication & ability to drive ecosystem growth
🤝 Your Mission:
• Build strategic partnerships across DeFi (DEXs, LPs, Institutions)
• Help shape tokenomics, product-market fit, and GTM
• Be part of a security-first movement in Web3
📩 Interested or know someone perfect for this?
Referrals welcome — we offer commissions!
Reach out at rendy@keepityourself.com
with
Subject : [Position](space)[Full Name]
Including CV and LinkedIn Profile
Thanks!
Payment in Crypto
Melani Melani
Legal for KIY Ecosystem
Full time
Remote
🚀 KIY ECOSYSTEM – Core Team Members Needed!
We're building something big in Web3 Security & User Acquisition, backed by proven Web2 security veterans and crypto OGs. Now looking to expand our Core Team for 3 early-stage projects under the KIY Ecosystem:
🔍 Open Roles (for each project)
C-Suite
• CEO
• CMO
• CSO
Advisors
• Blockchain
• Tokenomics
• Technical
• Legal
• Audit
📍 Remote-first | GMT+8 Preferred
💰 Compensation: Token allocation
🧩 What We're AboutWe're a crypto-blockchain security team led by founders who’ve previously scaled Web2 security ventures. Now, we're building a decentralized ecosystem focused on protecting users and onboarding the next billion into Web3.
✅ What We’re Looking For
Strategic Partners & Leaders with:
• 2+ years in Crypto/DeFi
• Existing industry network
• Strong communication & ability to drive ecosystem growth
🤝 Your Mission:
• Build strategic partnerships across DeFi (DEXs, LPs, Institutions)
• Help shape tokenomics, product-market fit, and GTM
• Be part of a security-first movement in Web3
📩 Interested or know someone perfect for this?
Referrals welcome — we offer commissions!
Reach out at rendy@keepityourself.com
with
Subject : [Position](space)[Full Name]
Including CV and LinkedIn Profile
Thanks!
We're building something big in Web3 Security & User Acquisition, backed by proven Web2 security veterans and crypto OGs. Now looking to expand our Core Team for 3 early-stage projects under the KIY Ecosystem:
🔍 Open Roles (for each project)
C-Suite
• CEO
• CMO
• CSO
Advisors
• Blockchain
• Tokenomics
• Technical
• Legal
• Audit
📍 Remote-first | GMT+8 Preferred
💰 Compensation: Token allocation
🧩 What We're AboutWe're a crypto-blockchain security team led by founders who’ve previously scaled Web2 security ventures. Now, we're building a decentralized ecosystem focused on protecting users and onboarding the next billion into Web3.
✅ What We’re Looking For
Strategic Partners & Leaders with:
• 2+ years in Crypto/DeFi
• Existing industry network
• Strong communication & ability to drive ecosystem growth
🤝 Your Mission:
• Build strategic partnerships across DeFi (DEXs, LPs, Institutions)
• Help shape tokenomics, product-market fit, and GTM
• Be part of a security-first movement in Web3
📩 Interested or know someone perfect for this?
Referrals welcome — we offer commissions!
Reach out at rendy@keepityourself.com
with
Subject : [Position](space)[Full Name]
Including CV and LinkedIn Profile
Thanks!
Payment in Crypto