Senior Backend Software Engineer (Remote US)
Status
Cheyenne, USA
Full time
Remote
Compensation is not specified
Role
Software Engineer
Description
We envision a future where banks seamlessly incorporate digital assets into their offerings, catering to a tech-savvy customer base with intuitive online platforms. Custodia, an established chartered bank, currently provides an array of services including banking, money market funds, and bitcoin custody for business clients. Our team at Custodia consists of experienced professionals excelling in both bitcoin and traditional financial services.
The Digital Assets team at Custodia spearheads the development of cutting-edge crypto banking products, focusing on creating innovative and secure custody solutions. We prioritize cryptographic security, accuracy, and dependability, seeking an enthusiastic individual to join us in revolutionizing digital assets custody.
Your Responsibilities will include:
- Designing and implementing software for the backend using Go
- Writing secure code for blockchain assets custody
- Developing reusable, testable, and principled code
- Collaborating with the team to facilitate rapid product evolution
- Conducting code reviews and aiding in the growth of team members
- Advocating for efficient and high-quality code delivery
Key Requirements:
- Minimum of 4 years of experience as a Senior Backend Engineer
- Proficiency in Go or similar statically-typed languages
- Prior product development experience, mainly in backend web applications with complex features
- Strong communication and teamwork skills
- Familiarity with protobuf/GRPC is advantageous
- Interest and experience in Bitcoin and blockchain technology are favorable
- Comfortable with video meetings
Why Choose Us:
- Competitive Salary
- Fully Remote Position
- Competitive Equity Package
- Significant Growth Opportunities
- Unlimited PTO
- Comprehensive Medical, Dental, and Vision Benefits
Custodia values diversity and is dedicated to being an equal opportunity employer. We prioritize building a diverse workforce and do not discriminate based on age, race, gender, gender identity, religion, sexual orientation, marital status, citizenship, veteran status, or disability.
Skills Required
Custodiabank
Website
Not specified
Company size
Not specified
Location
United States
Description
Not specified
Status
onyesi kosisochukwu
Marketing manager
Witney, UK
Witney, UK
Full time
Hybrid
We are seeking a highly motivated and experienced Marketing Manager to join our team. The primary responsibilities of this role will include developing and implementing marketing strategies to drive brand awareness, lead generation, and customer engagement. This individual will be responsible for overseeing all aspects of marketing, including online and offline campaigns, social media, email marketing, SEO, and more.
Required Skills:
- Proficiency in Web, Mobile & Software Development
- Strong understanding of Design & Creative principles
- Knowledge of Legal, Accounting and Consulting practices
- Familiarity with Blockchain & Cryptocurrency trends
- Understanding of NFT (Non-Fungible Token) market
- Ability to collaborate with Engineering & Architecture teams
The ideal candidate will have a proven track record of successfully leading marketing initiatives in a fast-paced environment. Strong communication skills, attention to detail, and a creative mindset are essential for this role. If you are passionate about marketing and have a diverse skill set across various industries, we would love to hear from you.
Join our team and be a part of our innovative and dynamic company as we continue to grow and expand our reach in the market. Apply now and take the next step in your marketing career!
Required Skills:
- Proficiency in Web, Mobile & Software Development
- Strong understanding of Design & Creative principles
- Knowledge of Legal, Accounting and Consulting practices
- Familiarity with Blockchain & Cryptocurrency trends
- Understanding of NFT (Non-Fungible Token) market
- Ability to collaborate with Engineering & Architecture teams
The ideal candidate will have a proven track record of successfully leading marketing initiatives in a fast-paced environment. Strong communication skills, attention to detail, and a creative mindset are essential for this role. If you are passionate about marketing and have a diverse skill set across various industries, we would love to hear from you.
Join our team and be a part of our innovative and dynamic company as we continue to grow and expand our reach in the market. Apply now and take the next step in your marketing career!
Payment in Crypto
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