Senior Back-End Engineer, DeFi Wallet
Paris, France
Full time
Office
Compensation is not specified
Role
Backend Engineer
Description
DESCRIPTION
Blockchain.com is the forefront software platform for digital assets globally. We are seeking Kotlin and Solidity Developers with expertise in blockchain protocols and EVM networks. As a backend engineer on the DeFi team, you will be involved in a variety of projects, such as enhancing our non-custodial wallets network support and developing smart contracts. Additionally, you will be tasked with integrating third-party vendors supplying data for crypto tokens, DApps, and DAOs and centralizing logic from wallet clients into backend services.
In the role of a Senior Back-End Engineer, your responsibilities include leading technical discussions, influencing the approach, and advocating for best engineering practices to positively impact the team's development.
RESPONSIBILITIES
- Develop robust, reliable software to manage multiple networks and support our expanding range of products and users
- Collaborate with an engineering team dedicated to maintaining high standards and deploying secure and high-performing systems
- Engage directly with multiple blockchains in the core of Blockchain.com's solution
- Utilize open source technologies like Docker, Kafka, and MySQL
- Prioritize security in all aspects of the work
- Collaborate with interdisciplinary teams to consistently deliver high-quality products
- Optimize existing systems for scalability, extensibility, and performance while creating reusable, modular code for various Blockchain.com products
REQUIREMENTS
- Integrity, the most essential quality for this role
- Proficiency in Typescript, Solidity, and ideally Kotlin/JVM
- Experience with Blockchain technologies, particularly EVM or non-EVM chains and defi protocols
- Strong motivation, self-driven, and enthusiastic about cryptocurrencies
- Comprehensive understanding of blockchain systems and ideally prior experience working closely with one
- Ability to navigate novel challenges and curiosity to learn new technologies
- Advocacy for best engineering practices, proficiency in multiple programming languages, and a practical approach to solving complex problems
- Commitment to high levels of test coverage, technical documentation, and effective monitoring
- Accountability for all assigned projects
COMPENSATION & BENEFITS
- Competitive salary based on experience and equity in a leading company
- Prime office location in Paris with mandatory on-site work for four days per week
- Work from Anywhere policy
- Opportunity to play a significant role and progress in a rapidly expanding technology company within an emerging industry
- Unlimited vacation policy, inclusive of performance-based bonuses paid in cash
- Company-issued Apple equipment
Skills Required
Blockchain.com
Website
www.blockchain.comCompany size
Not specified
Location
United States
Description
Not specified
Erfan Fa
I'm looking for an investor and a buyer for the passive token that goes back into the earnings cycle
Full time
Remote
🚀 For Sale: Complete Power Society (PSY) Brand PackageIncludes:• English Channel @powerSocietyEn• Main Channel @PowerSociety• Active Persian Community Group @powersocietyPSY_fa (4,000+ members)• English Group @coumpany_PSY_en• Domain PowersocietyPSY.comIdeal for crypto projects, community marketing, or brand development.Ready-made audience in the digital asset space.Serious buyers, please send your best offer.Payment accepted in crypto only (USDT / ETH).DM for details.
Payment in Crypto
Common Knowledge Base Association (CKBA)
Senior Content Writer
Full time
Remote
About CKBA
CKBA (Common Knowledge Base Association) is a contributor-governed organization supporting the CKB ecosystem, bringing together researchers, developers, and contributors working on blockchain infrastructure and applications.
Learn more about us:
Website: https://ckba.build
GitHub: https://github.com/nervosnetwork/ckb
About the Role
We’re looking for a Senior Content Writer who can bridge the gap between complex blockchain technology and broader audiences.
You’ll research protocol designs, technical concepts, and ecosystem developments, then turn them into clear, thoughtful, and engaging educational content.
Responsibilities
Research and write high-quality educational long-form articles about CKB, blockchain infrastructure, and related topics.
Translate protocol updates and complex technical concepts into clear, engaging content for broader audiences.
Write high-impact content for X, including posts, threads, long-form posts, and thought-leadership quote tweets.
Collaborate closely with researchers, engineers, and ecosystem contributors to ensure technical accuracy.
Review and edit content from other contributors to maintain a consistent editorial standard and tone.
Stay current with industry trends and contribute to broader ecosystem narratives where relevant.
Apply SEO and GEO best practices where appropriate.
Effectively leverage AI tools to improve research, drafting, editing, and writing workflows while maintaining high editorial quality.
Qualifications
Required
4+ years of professional writing experience (7+ years preferred).
Deep understanding of blockchain technology and the broader crypto ecosystem.
Proven ability to explain complex technical concepts in a way that is accurate, engaging, and accessible.
Exceptional written English with strong attention to clarity, structure, and detail. Native-level proficiency is preferred but not required.
Excellent research skills and intellectual curiosity.
Experience writing educational, technical, or research-driven long-form content.
Experience creating engaging content for X (Twitter), including threads and thought-leadership content.
Familiarity with SEO/GEO principles and AI-assisted writing workflows.
Preferred
Experience working with an L1, L2, major DeFi protocol, blockchain infrastructure project, or centralized exchange.
Background in editorial, journalism, research communications, or educational content.
Experience reviewing and editing the work of other writers.
This role is probably not the right fit if your experience has been primarily focused on news reporting, market analysis, or short-form marketing copy.
Application
Please send your application to join@ckba.build with the subject line:
Senior Content Writer – Your Name
Please include:
Your resume
Three writing samples that best represent your work
We are especially interested in educational, technical, or research-driven long-form content that demonstrates your ability to explain complex blockchain concepts clearly and effectively. If you have collaborated with others on a piece, please briefly describe your contribution.
Please prioritize your strongest writing samples, as writing quality will be a key part of our evaluation process.
CKBA (Common Knowledge Base Association) is a contributor-governed organization supporting the CKB ecosystem, bringing together researchers, developers, and contributors working on blockchain infrastructure and applications.
Learn more about us:
Website: https://ckba.build
GitHub: https://github.com/nervosnetwork/ckb
About the Role
We’re looking for a Senior Content Writer who can bridge the gap between complex blockchain technology and broader audiences.
You’ll research protocol designs, technical concepts, and ecosystem developments, then turn them into clear, thoughtful, and engaging educational content.
Responsibilities
Research and write high-quality educational long-form articles about CKB, blockchain infrastructure, and related topics.
Translate protocol updates and complex technical concepts into clear, engaging content for broader audiences.
Write high-impact content for X, including posts, threads, long-form posts, and thought-leadership quote tweets.
Collaborate closely with researchers, engineers, and ecosystem contributors to ensure technical accuracy.
Review and edit content from other contributors to maintain a consistent editorial standard and tone.
Stay current with industry trends and contribute to broader ecosystem narratives where relevant.
Apply SEO and GEO best practices where appropriate.
Effectively leverage AI tools to improve research, drafting, editing, and writing workflows while maintaining high editorial quality.
Qualifications
Required
4+ years of professional writing experience (7+ years preferred).
Deep understanding of blockchain technology and the broader crypto ecosystem.
Proven ability to explain complex technical concepts in a way that is accurate, engaging, and accessible.
Exceptional written English with strong attention to clarity, structure, and detail. Native-level proficiency is preferred but not required.
Excellent research skills and intellectual curiosity.
Experience writing educational, technical, or research-driven long-form content.
Experience creating engaging content for X (Twitter), including threads and thought-leadership content.
Familiarity with SEO/GEO principles and AI-assisted writing workflows.
Preferred
Experience working with an L1, L2, major DeFi protocol, blockchain infrastructure project, or centralized exchange.
Background in editorial, journalism, research communications, or educational content.
Experience reviewing and editing the work of other writers.
This role is probably not the right fit if your experience has been primarily focused on news reporting, market analysis, or short-form marketing copy.
Application
Please send your application to join@ckba.build with the subject line:
Senior Content Writer – Your Name
Please include:
Your resume
Three writing samples that best represent your work
We are especially interested in educational, technical, or research-driven long-form content that demonstrates your ability to explain complex blockchain concepts clearly and effectively. If you have collaborated with others on a piece, please briefly describe your contribution.
Please prioritize your strongest writing samples, as writing quality will be a key part of our evaluation process.
Payment in Crypto
Utopos
Web3 Market Maker & Liquidity Manager
Panama City, Panama +3
Panama City, Panama +3
Full time
Hybrid
Web3 Market Maker & Liquidity Manager
Company: UTOPOS
Location: Remote (Worldwide)
Compensation: Negotiable (USDC, UTOP, or a combination)
About UTOPOS
UTOPOS is a blockchain ecosystem building the future of decentralized commerce, gaming, payments, sports, and smart city infrastructure. UTOP is the ecosystem's native digital currency, designed for real-world utility across multiple platforms.
We are seeking an experienced Web3 Market Maker & Liquidity Manager to help improve the trading experience and liquidity of the UTOP token while supporting the long-term growth of the ecosystem.
Responsibilities
Develop and execute market-making strategies for UTOP.
Monitor liquidity pools and trading activity across supported decentralized exchanges.
Improve bid/ask spreads and market depth.
Recommend liquidity allocation strategies.
Monitor trading volume, volatility, and order book health.
Identify opportunities to improve trading efficiency.
Prepare regular reports on market performance and liquidity metrics.
Coordinate with the UTOPOS team on exchange listings and liquidity initiatives.
Recommend best practices for sustainable token liquidity.
Requirements
Experience as a market maker, liquidity manager, or professional crypto trader.
Strong understanding of decentralized exchanges and automated market makers.
Experience with Uniswap, Polygon, and EVM-compatible ecosystems.
Knowledge of liquidity pool management and tokenomics.
Familiarity with on-chain analytics tools.
Strong analytical and quantitative skills.
Ability to work independently in a remote environment.
Preferred Qualifications
Experience supporting emerging blockchain projects.
Understanding of treasury management.
Experience with algorithmic trading or market-making tools.
Knowledge of cross-chain liquidity strategies.
Familiarity with Web3 analytics platforms.
Compensation
Compensation is negotiable and may include:
Fixed monthly compensation.
Performance-based incentives.
Payment in USDC, UTOP, or a mutually agreed combination.
How to Apply
Please include:
A brief introduction.
Your relevant market-making or liquidity management experience.
Blockchain projects you have supported.
Exchanges and protocols you have worked with.
Examples of measurable results you achieved.
Your preferred compensation structure.
Important: UTOPOS seeks to maintain fair, transparent, and orderly markets. Applicants should have experience with legitimate market-making and liquidity management practices. Any strategies involving market manipulation, wash trading, spoofing, or other deceptive trading activities will not be considered.
Company: UTOPOS
Location: Remote (Worldwide)
Compensation: Negotiable (USDC, UTOP, or a combination)
About UTOPOS
UTOPOS is a blockchain ecosystem building the future of decentralized commerce, gaming, payments, sports, and smart city infrastructure. UTOP is the ecosystem's native digital currency, designed for real-world utility across multiple platforms.
We are seeking an experienced Web3 Market Maker & Liquidity Manager to help improve the trading experience and liquidity of the UTOP token while supporting the long-term growth of the ecosystem.
Responsibilities
Develop and execute market-making strategies for UTOP.
Monitor liquidity pools and trading activity across supported decentralized exchanges.
Improve bid/ask spreads and market depth.
Recommend liquidity allocation strategies.
Monitor trading volume, volatility, and order book health.
Identify opportunities to improve trading efficiency.
Prepare regular reports on market performance and liquidity metrics.
Coordinate with the UTOPOS team on exchange listings and liquidity initiatives.
Recommend best practices for sustainable token liquidity.
Requirements
Experience as a market maker, liquidity manager, or professional crypto trader.
Strong understanding of decentralized exchanges and automated market makers.
Experience with Uniswap, Polygon, and EVM-compatible ecosystems.
Knowledge of liquidity pool management and tokenomics.
Familiarity with on-chain analytics tools.
Strong analytical and quantitative skills.
Ability to work independently in a remote environment.
Preferred Qualifications
Experience supporting emerging blockchain projects.
Understanding of treasury management.
Experience with algorithmic trading or market-making tools.
Knowledge of cross-chain liquidity strategies.
Familiarity with Web3 analytics platforms.
Compensation
Compensation is negotiable and may include:
Fixed monthly compensation.
Performance-based incentives.
Payment in USDC, UTOP, or a mutually agreed combination.
How to Apply
Please include:
A brief introduction.
Your relevant market-making or liquidity management experience.
Blockchain projects you have supported.
Exchanges and protocols you have worked with.
Examples of measurable results you achieved.
Your preferred compensation structure.
Important: UTOPOS seeks to maintain fair, transparent, and orderly markets. Applicants should have experience with legitimate market-making and liquidity management practices. Any strategies involving market manipulation, wash trading, spoofing, or other deceptive trading activities will not be considered.
Payment in Crypto
Utopos
Business Development & Marketing Representative (Commission-Based)
Panama City, Panama
Panama City, Panama
Full time
Hybrid
Business Development & Marketing Representative (Commission-Based)
Company: UTOPOS
Location: Remote (Worldwide)
Compensation: Commission-Based (Paid in UTOP)
About UTOPOS
UTOPOS is building a decentralized ecosystem that connects blockchain technology with commerce, gaming, sports, payments, and future smart city development. UTOP is the ecosystem's native digital currency, designed for use across multiple products and services.
We are expanding globally and are looking for motivated Business Development & Marketing Representatives to help grow the UTOPOS ecosystem.
Responsibilities
Promote awareness of the UTOPOS ecosystem.
Introduce individuals, communities, and businesses to UTOP.
Build relationships with blockchain communities, influencers, and strategic partners.
Generate qualified leads for partnerships and business opportunities.
Identify merchant adoption opportunities.
Assist with community growth across social media and Web3 platforms.
Represent UTOPOS professionally in online and offline communities.
Compensation
This is a commission-based opportunity.
Representatives earn commissions in UTOP based on qualified business generated for the UTOPOS ecosystem. Commission terms will be provided during onboarding and are paid only after qualifying milestones have been successfully completed.
Top performers may be offered long-term positions and leadership opportunities as UTOPOS expands globally.
Qualifications
Experience in marketing, sales, or business development.
Interest in blockchain, cryptocurrency, or Web3.
Strong communication skills.
Self-motivated and results-oriented.
Ability to work independently.
Existing crypto or business network is a plus but not required.
What We're Looking For
We're seeking individuals who enjoy building communities, creating partnerships, and helping grow innovative blockchain ecosystems. This is an opportunity to participate in the growth of a long-term project while earning performance-based rewards.
Important
Representatives are expected to communicate accurately about UTOPOS and UTOP. Misleading statements, guarantees of profits, or investment promises are strictly prohibited. All marketing must be factual and professional.
If you're passionate about Web3 and business development and want to help build the future of decentralized commerce, we'd love to hear from you.
Company: UTOPOS
Location: Remote (Worldwide)
Compensation: Commission-Based (Paid in UTOP)
About UTOPOS
UTOPOS is building a decentralized ecosystem that connects blockchain technology with commerce, gaming, sports, payments, and future smart city development. UTOP is the ecosystem's native digital currency, designed for use across multiple products and services.
We are expanding globally and are looking for motivated Business Development & Marketing Representatives to help grow the UTOPOS ecosystem.
Responsibilities
Promote awareness of the UTOPOS ecosystem.
Introduce individuals, communities, and businesses to UTOP.
Build relationships with blockchain communities, influencers, and strategic partners.
Generate qualified leads for partnerships and business opportunities.
Identify merchant adoption opportunities.
Assist with community growth across social media and Web3 platforms.
Represent UTOPOS professionally in online and offline communities.
Compensation
This is a commission-based opportunity.
Representatives earn commissions in UTOP based on qualified business generated for the UTOPOS ecosystem. Commission terms will be provided during onboarding and are paid only after qualifying milestones have been successfully completed.
Top performers may be offered long-term positions and leadership opportunities as UTOPOS expands globally.
Qualifications
Experience in marketing, sales, or business development.
Interest in blockchain, cryptocurrency, or Web3.
Strong communication skills.
Self-motivated and results-oriented.
Ability to work independently.
Existing crypto or business network is a plus but not required.
What We're Looking For
We're seeking individuals who enjoy building communities, creating partnerships, and helping grow innovative blockchain ecosystems. This is an opportunity to participate in the growth of a long-term project while earning performance-based rewards.
Important
Representatives are expected to communicate accurately about UTOPOS and UTOP. Misleading statements, guarantees of profits, or investment promises are strictly prohibited. All marketing must be factual and professional.
If you're passionate about Web3 and business development and want to help build the future of decentralized commerce, we'd love to hear from you.
Payment in Crypto
TokenBrickLabs
We're Hiring at TokenBrickLabs!
Yorkville, USA
Yorkville, USA
Full time
Remote
At TokenBrickLabs, we're building the future of blockchain and Web3 - and we're looking for talented people to grow with us.
As an ambitious startup, we're expanding our team and hiring passionate professionals who want to make a real impact from day one.
✨ Work on innovative blockchain and Web3 solutions
🌍 Collaborate with a global, remote-friendly team
🚀 Grow your career in a fast-paced startup environment
💡 Make meaningful contributions where your ideas matter
If you're excited about building cutting-edge technology and helping shape the future of decentralized innovation, we'd love to hear from you!
https://www.tokenbricklabs.com/talents
https://www.linkedin.com/company/token-brick-labs/
As an ambitious startup, we're expanding our team and hiring passionate professionals who want to make a real impact from day one.
✨ Work on innovative blockchain and Web3 solutions
🌍 Collaborate with a global, remote-friendly team
🚀 Grow your career in a fast-paced startup environment
💡 Make meaningful contributions where your ideas matter
If you're excited about building cutting-edge technology and helping shape the future of decentralized innovation, we'd love to hear from you!
https://www.tokenbricklabs.com/talents
https://www.linkedin.com/company/token-brick-labs/
Payment in Crypto