Qureos Mentor

TOKEN 13 SOFTWARE L.L.C

Responsibilities:•	Deploy, monitor, troubleshoot, and maintain Web3 wallet production environments.•	Manage and maintain cloud infrastructure with a focus on AWS to ensure high availability and reliability, experience with GCP and Azure is a plus.•	Configure and manage containerized environments using Docker, Kubernetes/ECS/EKS, and related tools for cluster management and automated deployment.•	Monitor logs, performance, and system health using Prometheus, Grafana, Loki, Tempo, OpenTelemetry, Dozzle and CloudWatch to proactively detect and resolve issues.•	Operate and maintain blockchain nodes (Ethereum, Tron, custom chains) ensuring uptime, sync, and transaction reliability.•	Collaborate with development teams to ensure smooth execution of CI/CD processes.•	Optimize backend and API reliability, including health checks, load balancing, fault isolation, and multi-port service troubleshooting.•	Manage centralized configuration using Apollo and AWS AppConfig, enabling dynamic updates without downtime.•	Implement automation and DevOps practices using CI/CD pipelines (GitHub Actions, TeamCity, Jenkins), Infrastructure as Code (Terraform), and automated service recovery.•	Ensure operational security for backend services, secure container configurations, and secrets management.•	Design and maintain networking and load management, including port mapping, TCP routing, API gateways, AWS ALB, Auto Scaling Groups, and Bastion hosts.•	Conduct troubleshooting, root cause analysis, runbooks, and postmortems for incidents affecting containers, databases, or blockchain nodes.•	Conduct regular disaster recovery drills and backups to ensure data integrity and system resilience.

Senior DevOps/SRE Engineer

We’re on a mission to build sleek blockchain wallet apps and Web3 platforms that redefine user experience. Join our ambitious team and help shape the future of crypto usability. Job description: We are looking for a skilled Solidity Smart Contract Development Engineer to design, develop and deploy blockchain-based smart contract solutions. The ideal candidate should have extensive experience in smart contract development, be familiar with TRON, the Ethereum platform and its related technology stack, and be able to build innovative blockchain applications in an efficient and secure environment. Responsibilities: o Design and develop efficient and secure smart contracts, and conduct code audits and optimizations. o Write and deploy smart contracts using the Solidity programming language to ensure contract security and scalability. o Participate in blockchain application system architecture design, provide technical solutions and suggestions. o Collaborate with the team to develop and integrate decentralized applications (DApps). o Conduct unit testing and integration testing of smart contracts to ensure the stability and security of their functions.Conduct regular audits of smart contracts to identify and fix potential security bugs. o Track the latest technology trends in the blockchain industry, evaluate new tools and technologies, and promote technological innovation. o Support the maintenance and upgrade of smart contracts, handle bug fixes and optimizations after deployment. Job requirements: • Education : Bachelor&#x27;s degree or above in computer science, software engineering, information technology or related majors. • Technical skills : or Familiar with the Solidity programming language, with a deep understanding of its syntax, data structures, and memory model. o Familiar with Ethereum blockchain platform and related technologies, including Web3.js, Ethers.js, Truffle, Hardhat and other tools. o Have experience in developing smart contracts, able to conduct Performance optimization and security audits. o Familiar with security issues and best practices of smart contracts, such as reentry attacks, integer overflows, timestamp dependencies, etc. o Candidates with experience in backend development (such as Golang, Rust, etc.) are preferred.

Solidity Smart Contract Development  Engineer

· Design clean, user-friendly interfaces for mobile & web· Turn concepts into polished, high-fidelity designs & flows· Collaborate closely with product & dev teams from idea to launch· Stay ahead of Web3 design trends and push creative boundaries· Build & maintain design systems and component libraries

UI (User Interface) Developer

Join TOKEN 13 SOFTWARE L.L.C and explore 3   exciting career opportunities. They're hiring for various roles with options for remote or on-site work. Apply today and become part of their innovative team.

TOKEN 13 SOFTWARE L.L.C

ABOUT_COMPANY

Senior DevOps/SRE Engineer

Solidity Smart Contract Development Engineer

UI (User Interface) Developer