Senior Python Developer
Zielona Góra, Poland
Full time
Office
Compensation is not specified
Role
Software Engineer
Description
Company Overview:
B2C2 is a leading digital asset organization that focuses on revolutionizing the ecosystem through providing institutional access to the crypto market. With a foundation in cutting-edge technology and continuous innovation, B2C2 has established itself as a trusted partner for various global institutions. Since its establishment in 2015 and subsequent acquisition by SBI in 2020, B2C2 operates as an independent entity. Headquartered in the UK, the company has additional offices in the US and Japan, and is authorized and regulated by the UK’s Financial Conduct Authority (FRN 810834).
We take pride in our unique company culture and our ability to attract top talent and individuals who resonate with our values. If you are seeking an exciting opportunity in a vibrant industry and company, read on for further details.
Role Overview:
In this role, you will have the opportunity to tackle diverse challenges spanning various teams, allowing you to broaden your knowledge in multiple business domains. Your contributions will directly impact various stakeholders within the organization, aligning with strategic objectives and enhancing our technology stack. As a key member of the team, you will collaborate with different departments to understand project requirements, contribute to system design, and interface closely with developers and business stakeholders.
Key technologies utilized include Django, DRF, Celery, Python 3.11, AWS EKS, Amazon Aurora PostgreSQL, Amazon ElastiCache, and Amazon MSK.
Responsibilities:
- Develop and maintain effective Python-based applications and components with a focus on code quality and compliance with coding standards.
- Enhance and manage in-house Python shared libraries to ensure reliability and efficiency.
- Write robust, well-documented, and thoroughly-tested code to achieve project objectives within specified timelines.
- Troubleshoot software defects and technical issues to minimize disruptions in revenue-generating processes.
- Collaborate with cross-functional teams to define and implement new features.
- Participate in code reviews and incorporate feedback for continuous improvement.
- Maintain and enforce comprehensive internal documentation.
Required Skills:
- Minimum 8 years of Python software development experience.
- Proficiency in building, deploying, and managing scalable web applications.
- Deep understanding of relational databases, SQL, and web technologies and protocols.
- Strong coding practices with a focus on efficiency.
- Experience in writing automated tests and providing production support for critical services.
- Ability to take ownership of projects from inception to delivery.
- Effective communication skills in English and Polish (B2/C1 level).
Desired Skills:
- Familiarity with Django, DRF, Celery, PostgreSQL, Kafka, Redis, and gRPC.
- Some exposure to Linux, Docker, Kubernetes, and AWS.
- Interest in cryptocurrency and trading.
- Experience with ReactJS or front-end technologies.
Opportunity:
- Rapid growth opportunities and an environment that encourages continuous improvement.
- Work with cutting-edge technologies to maximize productivity.
- Develop your career within a growing organization specializing in finance technology.
- Be part of a forward-thinking company making a meaningful impact on the future of finance.
- Enjoy a dynamic work environment blending hard work and fun.
- Conduct bi-annual performance reviews and receive discretionary bonuses.
- Contribute to a forward-thinking and dynamic organization culture.
Equal Employment Opportunities Policy:
B2C2 promotes equal employment opportunities for all applicants and employees, irrespective of race, color, religion, sex, national origin, age, disability, genetic information, marital status, or any other characteristic protected by laws. We are committed to cultivating an inclusive work environment to attract and retain the best talent, and open to considering flexible work arrangements for all roles.
Skills Required
B2C2
Website
www.b2c2.comCompany size
Not specified
Location
United States
Description
Not specified
Common Knowledge Base Association (CKBA)
Senior Content Writer
Full time
Remote
About CKBA
The Common Knowledge Base Association (CKBA) ****is a Swiss Verein—a membership-based, non-profit entity governed by its contributors. It reflects the natural progression of the CKB ecosystem.
It brings together the same people and efforts that have shaped CKB from the start under a more aligned and effective structure.
Learn more about us:
Website: https://ckba.build
X: https://x.com/CKBAOfficial
LinkedIn: https://www.linkedin.com/company/common-knowledge-base-association
GitHub: https://github.com/nervosnetwork/ckb
Forum: https://talk.nervos.org
About the Role
Some of the most important ideas in blockchain are also the hardest to explain.
As a Senior Content Writer, you'll help bridge that gap by transforming complex protocol designs, technical concepts, and ecosystem developments into thoughtful, educational, and engaging content.
This is not a technical documentation role. Instead, we're looking for someone who understands blockchain technology deeply enough to explain it clearly to a broader audience.
If you enjoy researching complex topics, asking thoughtful questions, and crafting high-quality educational content, we'd love to hear from you.
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
Ideally, your writing samples should be educational, technical, or research-driven long-form articles (1,000+ words) that demonstrate your ability to explain complex ideas clearly. News articles, market analysis, newsletters, or primarily promotional content are generally not the best examples for this role.
If you've collaborated with others on a piece, please briefly describe your contribution.
Writing is the most important part of our evaluation process. We'd much rather read your best work than a long list of previous employers. If you're an exceptional writer who enjoys explaining complex ideas, we'd still love to hear from you—even if you don't meet some qualification listed above.
The Common Knowledge Base Association (CKBA) ****is a Swiss Verein—a membership-based, non-profit entity governed by its contributors. It reflects the natural progression of the CKB ecosystem.
It brings together the same people and efforts that have shaped CKB from the start under a more aligned and effective structure.
Learn more about us:
Website: https://ckba.build
X: https://x.com/CKBAOfficial
LinkedIn: https://www.linkedin.com/company/common-knowledge-base-association
GitHub: https://github.com/nervosnetwork/ckb
Forum: https://talk.nervos.org
About the Role
Some of the most important ideas in blockchain are also the hardest to explain.
As a Senior Content Writer, you'll help bridge that gap by transforming complex protocol designs, technical concepts, and ecosystem developments into thoughtful, educational, and engaging content.
This is not a technical documentation role. Instead, we're looking for someone who understands blockchain technology deeply enough to explain it clearly to a broader audience.
If you enjoy researching complex topics, asking thoughtful questions, and crafting high-quality educational content, we'd love to hear from you.
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
Ideally, your writing samples should be educational, technical, or research-driven long-form articles (1,000+ words) that demonstrate your ability to explain complex ideas clearly. News articles, market analysis, newsletters, or primarily promotional content are generally not the best examples for this role.
If you've collaborated with others on a piece, please briefly describe your contribution.
Writing is the most important part of our evaluation process. We'd much rather read your best work than a long list of previous employers. If you're an exceptional writer who enjoys explaining complex ideas, we'd still love to hear from you—even if you don't meet some qualification listed above.
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
SADR B
Founding Technical Partners for Oferli – Elite Web & Mobile Development Team🌐
Remote, USA
Remote, USA
Part time
Remote
I am Sadr, CEO of Oferli. We are building a high-performance, elite technical team, and I am looking for 5 to 10 dedicated founding technical partners to join me in this mission.
The Vision:
Oferli is a 100% decentralized ecosystem. While we are rooted in Web3, our expertise spans across professional web and mobile application development. We are not just another agency; we are crafting the next generation of digital solutions. Our goal is to set a new standard for excellence, transparency, and decentralization.
What I am looking for:
I am building a professional, senior-level "Elite Team." I am looking for partners who are truly passionate about the vision—not just short-term gains. By combining our individual expertise and portfolios, we will establish Oferli’s collective professional reputation.
Requirements:
Proven Expertise: You must be a senior-level professional. Please provide your portfolio showcasing your best work in web and mobile development.
Commitment: This is a founding partnership. We are looking for those who believe in the mission and are ready to tackle complex challenges together.
Professionalism: We operate with high standards. Communication and efficiency are key.
How We Work:
Collaboration: We use professional, secure channels for all communications. Qualified candidates will be contacted via email to be invited to our private workspace on Notion to align on our roadmap and launch our upcoming projects.
Decentralized Operations: We leverage Web3 tools for collaboration and compensation, maintaining a fully decentralized environment.
Growth: We are launching with a core team of at least 5 founding partners, scaling to 10, to deliver high-impact results for our clients.
Application Process:
If you are a senior professional ready to build a world-class, decentralized ecosystem, apply here on LaborX. Qualified candidates will be contacted via email for further professional vetting and onboarding.
Let’s build the future, together.
Sadr B
CEO, Oferli
The Vision:
Oferli is a 100% decentralized ecosystem. While we are rooted in Web3, our expertise spans across professional web and mobile application development. We are not just another agency; we are crafting the next generation of digital solutions. Our goal is to set a new standard for excellence, transparency, and decentralization.
What I am looking for:
I am building a professional, senior-level "Elite Team." I am looking for partners who are truly passionate about the vision—not just short-term gains. By combining our individual expertise and portfolios, we will establish Oferli’s collective professional reputation.
Requirements:
Proven Expertise: You must be a senior-level professional. Please provide your portfolio showcasing your best work in web and mobile development.
Commitment: This is a founding partnership. We are looking for those who believe in the mission and are ready to tackle complex challenges together.
Professionalism: We operate with high standards. Communication and efficiency are key.
How We Work:
Collaboration: We use professional, secure channels for all communications. Qualified candidates will be contacted via email to be invited to our private workspace on Notion to align on our roadmap and launch our upcoming projects.
Decentralized Operations: We leverage Web3 tools for collaboration and compensation, maintaining a fully decentralized environment.
Growth: We are launching with a core team of at least 5 founding partners, scaling to 10, to deliver high-impact results for our clients.
Application Process:
If you are a senior professional ready to build a world-class, decentralized ecosystem, apply here on LaborX. Qualified candidates will be contacted via email for further professional vetting and onboarding.
Let’s build the future, together.
Sadr B
CEO, Oferli
Payment in Crypto