Mike Lue

My speciality skills

• Have a view for design which concerns about programming, testability, maintainability, security, and operability.
• Know what kind of lacking knowledge will cause what kind of system problems.

Make things right

As simple as I can, an application system composes following three important aspect of skills:

1. Knowing how to match your design with specifications, protocols, frameworks etc.(JSON Schema, HTTP, SpringFramework)
2. Knowing how to test your code.(From unit tests to maintainable integration tests)
3. Knowing how to use databases with best practices.(least indexes for acceptable performance. least cost for correct transaction)

Development for Micro-sevices/Saga Pattern/Event sourcing

• Language:
  • Java(over 10 years): SpringBoot, Spring WebFlux/WebMVC, SpringSecurity, SpringData(JPA/Hibernetes, Cassandra), Reactive Programming(Reactor), BeanValidation, AspectJ, CGLib, SLF4j, LogBack
  • GoLang(3 years): Gin, GORM, Go-Resty
• Meta-Programming:
  • Experienced with PEG(Parsing Expression Grammar)
• Paradigm:
  • Familiar with Reactor(framework of Reactive Programming)
• Deployment:
  • Kubernetes(on GCP), Minikube, 4 years
• Language Tools:
  • Java: Maven
• Testing:
  • Java: JUnit(Jupiter), JMockit
  • GoLang: Ginkgo, Gomega
  • Minikube: In personal or shared environment for development team
• Parser generator:
  • Java: ANTLR
  • GoLang: pointlander/peg
• Queueing: RabbitMQ, Kafka
• Lightweight Markup Language:
  • Markdown, AsciiDoc, Creole(used by Trac mainly)

Other languages

• Perl(15 years ago), TypeScript(for nvim/vim plugin, recently), lua(for nvim, recently)
• vimscript(I’ve been using VIM for 20 years, turn to NVIM recently)
• fish(as I change my development environment of terminal)

Architecture

• Experienced on reactive programming
• Expert on IoC/DI pattern
• Expert on domain driven-design
• Expert on aspect-oriented programming/declarative programming.
• Expert on test driven-design.
• Expert on event sourcing/offline transaction/Saga pattern design.

Refactoring systems

With TDD principals, I am good at refactoring/simplifying existing system.

• Experiences on refactoring from monolith system to micro-services.
• Expert on test-driven for reliable software quality while refactoring.

Database design/performance tuning and evolution

• Expert on relational database.
• Expert on paper-design of database schema(based on ANSI-SPARC Architecture).

Experienced on NoSQL Databases: Cassandra, MongoDB

• Expert on Pre-optimized design for schema/index
• Expert on query optimization
• Expert on databae evolution(Liquibase, CassandraMigrate)

CI/CD

• Experienced on modern CI/CD(GitLab CI, GitHub action)
• Experienced with Docker/Kubernetes/Kustomized

Cloud

• Experienced on AWS(EC2, ElastiCache, RDS, ECS)
• Experienced on GCP(SQL, GKE, Logging, Monitoring)

Knowledge system

Expert on usage of Trac/AsciiDoc writing.

• Experienced on Confluence/JIRA