VPN.Express Inc.

Backend Engineer

• Design and develop high-performance backend services using Node.js and TypeScript
• Build and orchestrate distributed systems and workflows using Temporal
• Develop APIs and services related to payments, subscription lifecycles, and user licensing
• Assist in migrating from a legacy monolith system (Go, Ruby, PHP) to a Node.js-based microservices architecture
• Collaborate closely with the app team to ensure seamless integration between backend services and client-facing applications
• Engineer integrations with marketing tools, affiliate networks, partner APIs, and third-party platforms
• Participate in sustaining activities, including issue triage, incident resolution, and performance tuning of production services
• Configure and maintain SaaS tools and third-party systems supporting payment and marketing operations
• Design scalable, secure, and maintainable technical solutions in collaboration with engineering leadership, architects, and cross-functional stakeholders
• Champion engineering best practices in security, scalability, testing, and observability
• Provide technical mentorship and contribute to architectural decisions

Senior/Staff Software Engineer, Node.js

QA Engineer

• Design, develop, and maintain automated testing frameworks for the Lightway VPN protocol (Rust) across Windows, Linux, macOS, iOS, and Android
• Build and automate end-to-end test cases covering client-server interactions, encryption, connection stability, networking scenarios, failover handling, and performance under load
• Develop and execute security tests to assess vulnerabilities and validate encryption, authentication, and confidentiality
• Conduct performance and stress testing to validate scalability, stability, and resource usage; simulate high traffic and variable network conditions
• Integrate automated test suite into CI/CD pipeline to enable continuous testing with every code change
• Collaborate closely with the Rust development team to identify test coverage gaps and provide feedback on code quality and testability
• Create and maintain documentation on test strategy, test cases, results, and best practices; report test coverage, defects, and risks to stakeholders
• Continuously evaluate and improve test automation framework and stay up-to-date on testing tools and Rust-related techniques

Senior QA Engineer, Network Protocols

• Design and implement testing tools and test frameworks in collaboration with developers to measure software and network performance
• Champion automation by identifying optimization opportunities for testing efficiency and effectiveness
• Take ownership of product quality via comprehensive risk analysis, quality activity planning, and test execution
• Engage in cross-functional collaboration to ensure comprehensive testing coverage and promote open communication and skill sharing
• Drive continuous improvement in QA processes, tools, and practices
• Develop and implement testing tools and frameworks that lead to measurable improvements in product performance and quality
• Integrate automated test suites into CI/CD pipelines and ensure reliable test automation
• Perform performance and load testing and interpret metrics to inform quality decisions

Senior/Staff Software Engineer, Node.js

Senior QA Engineer, Network Protocols

Senior Quality Assurance Engineer – Website/Backend