Ayoub Essa

Full stack engineer

vast-security • Part time

Jul 2025 - Present • 1 yr 3 mos

Develop and maintain enterprise applications using Spring Boot, Kotlin, Angular, and PostgreSQL within a dis- tributed microservices environment. • Investigate and resolve production incidents by analyzing application logs, API responses, stack traces, and service behavior. • Troubleshoot backend service failures, authentication issues, and inter-service communication problems across multi- ple environments. • Perform root cause analysis and collaborate with development teams to implement preventive solutions and improve system reliability. • Debug Angular applications including routing, reactive forms, NgRx state management, and HTTP client integrations. • Monitor application performance and optimize services to improve response times and overall platform stability. • Support deployment activities, environment configuration, and release validation processes.

Software engineer

Dar attakafa • Freelance

Feb 2024 - Present • 2 yrs 8 mos

• Developed and maintained a scalable e-commerce platform using Laravel, Vue.js, MySQL, and Redis. • Designed secure REST APIs and integrated authentication mechanisms to support business-critical workflows. • Diagnosed production issues, analyzed logs, and implemented fixes to improve system stability and user experience. • Improved API performance and database efficiency through caching strategies and query optimization. • Managed deployments and infrastructure maintenance on Linux servers using Docker.