2+ years of hands-on Linux administration (command-line proficiency required). Experience in Windows/macOS troubleshooting and support. Familiarity with networking (TCP/IP, VPN, DNS, DHCP). Knowledge of Git, Docker, and virtualization tools. Scripting skills (Bash/Python) for automation. Certifications like RHCSA, CompTIA Linux+, Microsoft, or Apple are a plus. Key Responsibilities Linux Systems Administration Install, configure, and maintain Linux servers/workstations (Ubuntu, CentOS, Debian). Manage user access, permissions, and security policies. Monitor system performance, troubleshoot issues, and optimize resources. Automate repetitive tasks using Bash/Python scripting. Manage Git repositories and Docker containers. Windows & macOS Support Provide Level 1/2 technical support for Windows/macOS (software, hardware, network issues). Deploy updates, patches, and security compliance measures. Integrate Windows/macOS devices with Linux systems (file sharing, authentication). Networking & Security Configure and maintain routers, switches, firewalls, and VPNs. Manage DNS, DHCP, and network monitoring tools. Implement security measures (firewalls, intrusion detection, audits). Documentation & User Support Maintain system documentation, IT policies, and procedures. Resolve employee IT issues via helpdesk tickets, email, or in-person support. Backup & Recovery Design and test backup strategies (local/cloud). Ensure data integrity and rapid disaster recovery.
Deep expertise in AWS/Azure (EC2, VPC, CloudWatch, cost optimization, Reserved Instances). Strong knowledge of Docker, Kubernetes, and container orchestration. Proficiency in Infrastructure-as-Code (Terraform, CloudFormation, Helm). Experience with CI/CD pipelines (GitHub Actions, Jenkins, Azure DevOps). Strong background in networking (VPN, static routes, HAProxy, Nginx, OpenSSH). Hands-on experience with security best practices (IAM, firewalls, DDoS protection, certificate management). Familiarity with monitoring tools (Prometheus, Grafana, ELK Stack). Scripting skills in Bash/PowerShell/Python for automation. Knowledge of Proxmox, VM management, and hardware troubleshooting. Experience with Kafka/Zookeeper, AWS Lambda, and API Gateway. Key Responsibilities Design, implement, and maintain highly available, scalable cloud infrastructure. Optimize AWS/Azure cost structures while ensuring performance and reliability. Automate deployments, monitoring, and recovery processes using CI/CD tools. Manage Kubernetes clusters, Docker environments, and microservices architecture. Implement security best practices for authentication, network policies, and data protection. Troubleshoot and resolve system outages, performance bottlenecks, and deployment failures. Collaborate with development teams to streamline build, test, and release pipelines. Ensure 24/7 system uptime with proactive monitoring and incident response. Document infrastructure, processes, and disaster recovery plans.
5+ years of software development experience with at least 3+ years in blockchain development. Strong proficiency in Solidity, Rust, Go, or JavaScript/TypeScript. Hands-on experience with Ethereum, Hyperledger Fabric, Polygon, Solana, or other blockchain platforms. In-depth knowledge of cryptography, consensus mechanisms, distributed systems, and token standards. Experience with DevOps tools (Docker, Kubernetes, CI/CD) for blockchain deployment. Strong understanding of security best practices in blockchain and smart contract development. Excellent problem-solving, analytical, and communication skills. Key Responsibilities Design, build, and deploy blockchain applications and smart contracts on platforms such as Ethereum, Hyperledger, Polygon, or Solana. Architect and implement secure, high-performance, and scalable blockchain infrastructure. Develop APIs, SDKs, and integrations between blockchain systems and existing applications. Conduct research on emerging blockchain technologies, tools, and industry trends to drive innovation. Perform code reviews, testing, and debugging to ensure system reliability and security. Collaborate with product managers, architects, and cross-functional teams to align blockchain solutions with business goals. Optimize consensus algorithms, transaction flows, and on-chain/off-chain interactions. Ensure compliance with security, privacy, and regulatory standards. Mentor and guide junior engineers in blockchain development best practices. Read Less