Fully Remote: Blockchain Engineer at VALR

May 30, 2024

Job Description

As a Blockchain Engineer at VALR, your main goal is to design, develop, and maintain blockchain systems to ensure the security, efficiency, and scalability of the VALR platform. You will play a crucial role in fostering innovation, implementing best practices, and optimizing performance within our blockchain infrastructure.


  • Design and implement blockchain solutions to improve platform functionality and security.
  • Develop and maintain blockchain nodes for various cryptocurrencies, such as Bitcoin and Ethereum.
  • Develop and deploy NodeJS workers within our infrastructure to interface seamlessly with blockchain nodes via HTTP or WebSocket.
  • Collaborate with cross-functional teams to integrate blockchain technology into existing systems.
  • Ensure the reliability and performance of blockchain infrastructure through continuous monitoring, optimization, and troubleshooting.
  • Manage cloud infrastructure using Docker, Kubernetes, and Google Cloud Platform (GCP).
  • Use RabbitMQ and other messaging protocols for efficient communication between system components.
  • Implement monitoring and analytics tools like Grafana and Prometheus to track system metrics and performance.
  • Engage with relevant Discord, Telegram, and GitHub channels to build strong relationships within the web3 community and swiftly resolve issues related to blockchain node execution, ensuring smooth platform operation.


  • Practical experience is more important than formal qualifications.
  • Extensive experience with NodeJS, Docker, Kubernetes, and cloud infrastructure.
  • Over six years of experience in production environments.
  • Proficiency in managing blockchain nodes for Bitcoin, Ethereum, and other cryptocurrencies.
  • Strong understanding of blockchain principles, protocols, and cryptographic techniques.
  • Advanced knowledge of security principles and practices.
  • Familiarity with Solidity and TypeScript.
  • Excellent problem-solving skills and ability to troubleshoot complex issues.
  • Proven track record in designing and implementing scalable and secure blockchain solutions.
  • Ability to adapt to evolving technologies and industry trends.
  • Effective communication skills and ability to collaborate within cross-functional teams.
  • Passion for cryptocurrencies and alternative financial systems.
  • A natural inclination to help people and explain technical details simply.

What VALR Offers:

  • Competitive salary.
  • Leave compliant with statutory requirements, plus flexible leave.
  • Remote work options with a requirement for secure, stable internet connectivity.
  • Home office setup, including a Mac laptop and a discretionary allowance for additional equipment, all yours to keep after three years (terms and conditions apply).
  • An annual upskilling budget of R20,000 per employee, converted to the employee’s local currency, plus scheduled VALR training.
  • Performance bonuses for contributing to VALR’s success.
  • Regular social gatherings outside of work.
  • Annual company retreats.