Senior Software Security Engineer (f/m)
Paris, France
Full time
Office
Compensation is not specified
Role
Security Engineer
Description
We are a forward-thinking team of innovators, dedicated to revolutionizing digital ownership in a dynamic world. Our mission goes beyond commercial interests as we strive to unlock authentic freedom through our cutting-edge products.
At Ledger, founded in 2014, we are the global frontrunners in digital assets and Web3 technologies. With our headquarters in Paris and Vierzon, and additional offices across various countries, our team of over 700 professionals is committed to enabling secure transactions and management of crypto assets for individuals and businesses worldwide.
If you join us as a security engineer focused on consumer services, you will play a crucial role in ensuring the robustness and integrity of our products and ecosystem. Your daily tasks will involve identifying vulnerabilities, developing offensive security strategies, and conducting security assessments to uphold our industry leadership.
Responsibilities:
- Collaborate closely with development teams to detect and remedy vulnerabilities in backend services and APIs.
- Engage in ongoing research to stay informed about advanced offensive security methods.
- Create tools and exploits for our products and provide solutions for identified issues.
- Conduct security assessments and threat evaluations for Ledger's services ecosystem including DeFi services.
- Encourage secure coding practices within the engineering teams and present findings at global conferences.
Requirements:
- Prior experience in security, especially in blockchain security, is advantageous.
- Proficiency in applied cryptography with a basic understanding of financial services.
- Self-motivated with a keen interest in evolving security landscapes.
Technical Skillset:
- Advanced experience in web/backend penetration testing.
- Proficiency in secure programming using Python, Rust, and basic knowledge of Scala.
- Familiarity with Kubernetes and cloud infrastructure.
- Knowledge of exploitation techniques and relevant preventive measures.
- Ability to automate security analysis and design secure architectures.
Perks:
- Equity opportunities through stock options to benefit from the company's growth.
- Hybrid work policy for flexible work arrangements.
- Social events, annual company outings, snacks, and drinks for a vibrant work environment.
- Comprehensive health insurance coverage including medical, dental, and vision care.
- Personal development and fitness support.
- Generous vacation time with additional leave including national holidays.
- Access to high-performance office equipment and gadgets.
- Transportation reimbursement and employee discounts on all products.
We guarantee equal opportunities for all candidates throughout the recruitment process, irrespective of gender, ethnicity, religion, sexual orientation, social status, disability, or age.
Skills Required
Ledger
Website
www.ledger.comCompany size
Not specified
Location
United States
Description
Ledger is a leader in security and infrastructure solutions for cryptocurrencies and blockchain applications. We are constantly looking for innovative, talented people to join our team.
Hoi Vo
Senior VPS Marketer
California City, USA
California City, USA
Full time
Remote
I sell any type of VPS for your hosting, including RDP which isknow as Remote Desktop protoco, also I can crack any of your choice
Rivalz Network
Social Media Manager & Content Strategist
Full time
Remote
Job Description: Social Media Manager & Content Strategist
About Rivalz Network:
Rivalz Network is at the forefront of revolutionizing AI and blockchain integration with the creation of the World Abstraction Layer. Our mission is to bridge AI agents with real-world resources—digital and physical—by simplifying connectivity complexities. We are building an agent-centric future where AI reaches its full potential within a decentralized ecosystem.
About the Role:
We are seeking a dynamic Social Media & Content Strategist to join our team and take charge of our digital presence. This individual will be a master of trends, an engaging writer, and a visionary strategist who knows how to captivate audiences, build communities, and analyze performance metrics to drive results.
Key Responsibilities:
o Stay ahead of the curve with the latest in social media tools, trends, and
emerging technologies, including AI and Web3.
o Proactively identify opportunities to integrate trends into our content strategy.
o Craft compelling short-form and long-form content that sparks conversation and
resonates with diverse audiences.
o Ensure all content aligns with the brand voice and objectives.
o Oversee the creation, curation, and management of content across all social
platforms, blogs, and newsletters.
o Collaborate with designers, videographers, and other team members to deliver
high-quality assets.
o Foster authentic interactions with audiences to build trust, loyalty, and meaningful
engagement.
o Create feedback loops to continuously improve the brand & connection with its community.
o Monitor and analyze performance metrics to evaluate the success of campaigns.
o Adjust strategies to maximize reach, engagement, and overall impact based on
data-driven insights.
Qualifications:
Proven experience in social media management, content creation, or a similar role.
Exceptional writing and storytelling skills.
Deep knowledge of AI, Web3, and emerging digital trends.
Proficiency in analytics tools (e.g., Google Analytics, social media insights).
Strong organizational and project management skills.
Passion for building and nurturing communities.
Why Join Rivalz Network?
Be part of a pioneering team shaping the future of AI and blockchain integration.
Work in a collaborative, forward-thinking, and innovative environment.
Play a crucial role in building the voice and strategy of a revolutionary brand.
Compensation will be based on your experience.
How to apply
Submit your cover letter and Resume at humaira@rivalz.ai
About Rivalz Network:
Rivalz Network is at the forefront of revolutionizing AI and blockchain integration with the creation of the World Abstraction Layer. Our mission is to bridge AI agents with real-world resources—digital and physical—by simplifying connectivity complexities. We are building an agent-centric future where AI reaches its full potential within a decentralized ecosystem.
About the Role:
We are seeking a dynamic Social Media & Content Strategist to join our team and take charge of our digital presence. This individual will be a master of trends, an engaging writer, and a visionary strategist who knows how to captivate audiences, build communities, and analyze performance metrics to drive results.
Key Responsibilities:
o Stay ahead of the curve with the latest in social media tools, trends, and
emerging technologies, including AI and Web3.
o Proactively identify opportunities to integrate trends into our content strategy.
o Craft compelling short-form and long-form content that sparks conversation and
resonates with diverse audiences.
o Ensure all content aligns with the brand voice and objectives.
o Oversee the creation, curation, and management of content across all social
platforms, blogs, and newsletters.
o Collaborate with designers, videographers, and other team members to deliver
high-quality assets.
o Foster authentic interactions with audiences to build trust, loyalty, and meaningful
engagement.
o Create feedback loops to continuously improve the brand & connection with its community.
o Monitor and analyze performance metrics to evaluate the success of campaigns.
o Adjust strategies to maximize reach, engagement, and overall impact based on
data-driven insights.
Qualifications:
Proven experience in social media management, content creation, or a similar role.
Exceptional writing and storytelling skills.
Deep knowledge of AI, Web3, and emerging digital trends.
Proficiency in analytics tools (e.g., Google Analytics, social media insights).
Strong organizational and project management skills.
Passion for building and nurturing communities.
Why Join Rivalz Network?
Be part of a pioneering team shaping the future of AI and blockchain integration.
Work in a collaborative, forward-thinking, and innovative environment.
Play a crucial role in building the voice and strategy of a revolutionary brand.
Compensation will be based on your experience.
How to apply
Submit your cover letter and Resume at humaira@rivalz.ai
Jack Morty
Junior Recruiter (Startup)
Part time
Remote
Job Title: Junior Recruiter (Startup)
📌 Responsibilities:
Sourcing candidates for various roles (IT, marketing, sales, etc.).
Conducting initial screenings and interviews.
Managing candidate databases and maintaining communication throughout the hiring process.
Posting job openings on different platforms and social media.
Collaborating with department heads to identify hiring needs.
📌 Requirements:
6+ months of experience in recruitment or a strong desire to learn.
Understanding of sourcing techniques and candidate search methods.
Proficiency in job boards, and social media recruitment.
Ability to conduct interviews and assess candidates effectively.
Strong communication and organizational skills.
English at an Intermediate+ level (preferred).
📌 What We Offer:
Flexible schedule (remote).
Opportunity to grow in a dynamic startup environment.
Training and mentorship from the team.
Competitive salary.
📩 Interested? Send us your resume! 🚀
📌 Responsibilities:
Sourcing candidates for various roles (IT, marketing, sales, etc.).
Conducting initial screenings and interviews.
Managing candidate databases and maintaining communication throughout the hiring process.
Posting job openings on different platforms and social media.
Collaborating with department heads to identify hiring needs.
📌 Requirements:
6+ months of experience in recruitment or a strong desire to learn.
Understanding of sourcing techniques and candidate search methods.
Proficiency in job boards, and social media recruitment.
Ability to conduct interviews and assess candidates effectively.
Strong communication and organizational skills.
English at an Intermediate+ level (preferred).
📌 What We Offer:
Flexible schedule (remote).
Opportunity to grow in a dynamic startup environment.
Training and mentorship from the team.
Competitive salary.
📩 Interested? Send us your resume! 🚀
Payment in Crypto
Everyvote
Backend Developer
New York, USA
New York, USA
Full time
Remote
About Us:
GP Vote is an innovative startup dedicated to transforming the democratic process through a cutting-edge voting platform integrated with blockchain technology. Our mission is to empower individuals to voice their opinions and shape collective decisions in a secure and transparent environment. We believe that every voice matters, and our platform fosters inclusivity by allowing users to propose titles and suggestions.
We are seeking a talented Frontend Developer with a strong background in React and TypeScript. The ideal candidate will have experience in Web3 and blockchain technologies, enabling them to contribute to our mission of delivering high-quality digital products.
Key Responsibilities:
Lead the migration of our backend systems from Express.js to ASP.NET.
Design, develop, and maintain scalable and secure backend services.
Collaborate with front-end developers to integrate user-facing elements using server-side logic.
Implement data storage solutions and ensure data integrity.
Develop and maintain APIs for mobile and web applications.
Optimize applications for maximum speed and scalability.
Monitor and troubleshoot issues in the production environment.
Stay updated with emerging technologies and trends in backend development, Web3, and Blockchain.
Required Qualifications:
Proven experience as a Backend Developer or similar role.
Strong proficiency in ASP.NET and C#.
Deep knowledge of backend development principles and best practices.
Proficient in database management (SQL, NoSQL).
Understanding of RESTful APIs and microservices architecture.
Experience with version control systems (e.g., Git).
Preferred Qualifications:
Experience with Web3 technologies (e.g., Ethereum, smart contracts).
Familiarity with Blockchain concepts and decentralized applications (dApps).
Knowledge of containerization technologies (Docker, Kubernetes).
Familiarity with CI/CD pipelines and DevOps practices.
Understanding of security best practices in backend development.
Benefits:
Competitive salary and performance-based bonuses.
Flexible working hours and remote work options.
Generous vacation policy and paid time off.
Health, dental, and vision insurance.
Professional development opportunities and access to online courses.
Collaborative and inclusive company culture.
Opportunities to work on cutting-edge technology in the Web3 and Blockchain space.
Team-building activities and company retreats.
How to Apply:
If you are excited about the opportunity to work with a forward-thinking company and have the skills we’re looking for, please send your resume and a cover letter to larry@everyvote.xyz.
Join us in shaping the future of voting technology!
GP Vote is an innovative startup dedicated to transforming the democratic process through a cutting-edge voting platform integrated with blockchain technology. Our mission is to empower individuals to voice their opinions and shape collective decisions in a secure and transparent environment. We believe that every voice matters, and our platform fosters inclusivity by allowing users to propose titles and suggestions.
We are seeking a talented Frontend Developer with a strong background in React and TypeScript. The ideal candidate will have experience in Web3 and blockchain technologies, enabling them to contribute to our mission of delivering high-quality digital products.
Key Responsibilities:
Lead the migration of our backend systems from Express.js to ASP.NET.
Design, develop, and maintain scalable and secure backend services.
Collaborate with front-end developers to integrate user-facing elements using server-side logic.
Implement data storage solutions and ensure data integrity.
Develop and maintain APIs for mobile and web applications.
Optimize applications for maximum speed and scalability.
Monitor and troubleshoot issues in the production environment.
Stay updated with emerging technologies and trends in backend development, Web3, and Blockchain.
Required Qualifications:
Proven experience as a Backend Developer or similar role.
Strong proficiency in ASP.NET and C#.
Deep knowledge of backend development principles and best practices.
Proficient in database management (SQL, NoSQL).
Understanding of RESTful APIs and microservices architecture.
Experience with version control systems (e.g., Git).
Preferred Qualifications:
Experience with Web3 technologies (e.g., Ethereum, smart contracts).
Familiarity with Blockchain concepts and decentralized applications (dApps).
Knowledge of containerization technologies (Docker, Kubernetes).
Familiarity with CI/CD pipelines and DevOps practices.
Understanding of security best practices in backend development.
Benefits:
Competitive salary and performance-based bonuses.
Flexible working hours and remote work options.
Generous vacation policy and paid time off.
Health, dental, and vision insurance.
Professional development opportunities and access to online courses.
Collaborative and inclusive company culture.
Opportunities to work on cutting-edge technology in the Web3 and Blockchain space.
Team-building activities and company retreats.
How to Apply:
If you are excited about the opportunity to work with a forward-thinking company and have the skills we’re looking for, please send your resume and a cover letter to larry@everyvote.xyz.
Join us in shaping the future of voting technology!
Payment in Crypto
Wallet
Senior Data Engineer
Full time
Remote
Wallet in Telegram is your gateway to the world of digital currencies, specially tailored for individuals in emerging markets. We understand the complexities and intimidation often associated with existing crypto solutions, which is why we've designed the Wallet to be the ultimate user-friendly platform for managing finances. No need to open a traditional bank account or wrestle with convoluted crypto exchanges and wallets.
Leveraging the power of advanced blockchain technology, Wallet delivers a seamless onboarding experience into the crypto ecosystem. It enables users to effortlessly store, send, and receive digital currencies, all via the familiar interface of Telegram. Managing your finances becomes as simple as sending a message.
At Wallet, we're committed to using technology to disrupt traditional banking systems, providing our customers with more flexible and inclusive financial services. Whether you're a crypto novice or seeking to simplify your digital finance experience, Wallet is crafted with your needs in mind.
Now, we are seeking a Senior Data Engineer
Responsibilities:
Design and implement high-performance, reusable, and scalable data models for our data warehouse / BI.
Continuously discover, transform, test, deploy, and document data sources and data models.
Apply, help define, and champion data warehouse governance, including data quality, testing, documentation, coding best practices, and peer reviews.
Take the initiative to improve and optimize analytics engineering workflows and platforms.
Engage with cross-functional teams, including application developers and data analysts, to understand business requirements and deliver tailored data solutions.
Requirements:
Strong proficiency in SQL.
Significant experience with cloud providers.
Strong experience modeling data warehouses and building data pipelines.
Hands-on experience with data platforms and technologies like ClickHouse, Kafka, and Airflow.
Experience with Python for data processing will be a plus.
English knowledge (at least level B1) is required.
Why it is a fantastic opportunity:
Our business is growing at an exponential scale.
Work in a well-funded startup environment with unique growth opportunities and a chance to join a rapidly growing company with a unique product.
Be based remotely.
Participation in the performance review and bonus programme.
Compensation for medical expenses.
Provision of necessary equipment.
Annual vacation of 20 working days plus 10 paid days off.
14 days of paid sick leave to support your health and recovery when needed.
Access to internal English courses for continuous learning and improvement in language skills.
Wallet is an equal opportunity employer.
Leveraging the power of advanced blockchain technology, Wallet delivers a seamless onboarding experience into the crypto ecosystem. It enables users to effortlessly store, send, and receive digital currencies, all via the familiar interface of Telegram. Managing your finances becomes as simple as sending a message.
At Wallet, we're committed to using technology to disrupt traditional banking systems, providing our customers with more flexible and inclusive financial services. Whether you're a crypto novice or seeking to simplify your digital finance experience, Wallet is crafted with your needs in mind.
Now, we are seeking a Senior Data Engineer
Responsibilities:
Design and implement high-performance, reusable, and scalable data models for our data warehouse / BI.
Continuously discover, transform, test, deploy, and document data sources and data models.
Apply, help define, and champion data warehouse governance, including data quality, testing, documentation, coding best practices, and peer reviews.
Take the initiative to improve and optimize analytics engineering workflows and platforms.
Engage with cross-functional teams, including application developers and data analysts, to understand business requirements and deliver tailored data solutions.
Requirements:
Strong proficiency in SQL.
Significant experience with cloud providers.
Strong experience modeling data warehouses and building data pipelines.
Hands-on experience with data platforms and technologies like ClickHouse, Kafka, and Airflow.
Experience with Python for data processing will be a plus.
English knowledge (at least level B1) is required.
Why it is a fantastic opportunity:
Our business is growing at an exponential scale.
Work in a well-funded startup environment with unique growth opportunities and a chance to join a rapidly growing company with a unique product.
Be based remotely.
Participation in the performance review and bonus programme.
Compensation for medical expenses.
Provision of necessary equipment.
Annual vacation of 20 working days plus 10 paid days off.
14 days of paid sick leave to support your health and recovery when needed.
Access to internal English courses for continuous learning and improvement in language skills.
Wallet is an equal opportunity employer.