In the past years before 2020, I was fascinated with right ways to do softwares and studied following enterprise application technologies. I am still interesting in those technologies. In the covid 19 pandemic period of last half of 2020, I reconsidered life, I shifted my interest into finance and studied accounting, Investment Philosophies, Valuation. When I was Asia Fusion Technology, I was interested in startups and followed them in 2-3 years. After above short detour, I am still passionate about IT and keep leaning and practicing IT technologies.
- AI: prompt engineering,langchain, data mining, nlp, machine learning (tensorflow, pytorch, keras), deep-agent, agent, spec-driven developments, context engineering, prompt engineering and harness engineering, ollama, vllm, tensorflow, keras, pytorch, openrouter, slurm, gemini, openai, Milvus
- API: openapi, swagger, spectral, graphql, REST, gRPC, com, dcom, CORBA, protobuff
- Data modeling: Star and Snowflake schema, data model resource, EAV, SQL&NoSQL, Analysis Pattern, Patterns etc
- Low/No Code: Power Platform, Power Automate, Power Aapp
- Design: domain driven design (DDD), Event Sourcing, Command and Query Responsibility Segregation (CQRS),
- Architecture: Event-driven architecture, Evolutionary Architecture, SOA, TOGAF, BIAN
- Patterns: idioms, design, micro-service, UI, Analysis, unit test, antipattern, database, regexp ERP frameworks(odoo, idempiere): metadata driven develop, DSL, dynamic form generator, application dictionary, extension mechanism etc.
- Workflow/process: BPM, BPEL
- Language: c#, c/c++, java, golang, javascript, dart, rust, typescript, python, ruby, xml, JsonSchema, cobol
- Frameworks: angular, reactjs, vuejs, umijs, flutter, MFC, WinForm, WCF, WPF
- Functional programming: clojure, scala, lisp, haskell
- Big data: machine mining, neural networks, computer vision, spark, airflow, flink, beam, hive, cassandra, hadoop, mapreducer
- Business Intelligence: Tableau, PowerBI
- MQ & Stream: ActiveMQ, RabbitMQ, MSMQ, Kafka
- Integration: Kong(API Gateway, Mesh, Konnect), APIM, Pentaho, SSIS, Azure Data Factory, Power Query
- OS: linux, solaris, z, Windows
- DB: Oracle, MSSQL, PostgreSQL, MySQL, Clickhouse, Snowflake, MongoDB, DynamoDB
- Security: OpenID, OIDC, SSO
- Cloud: kubernetes, aws, azure, GCP, alibaba, dapr, openshift
- Cloud native application technologies: 12factor, beyond 12factors
- CICD: argocd, argo-workflow, jenkins, github action, gitlab pipeline, bazel, maven, gradle
- DevOps & SRE : ansible, prometheus, influx, grafana, elk, alert, USE/RED metrics, Four Golden Signals, chaos engineering, platform engineering, PagerDuty, DataDog
- Developer experience (DX): skaffold, tilt, telepresence
- Domains: SCADA, Command and Control, Warehouse management, ERP(idempiere, odoo), CRM (Dynamic365), e-commerce, payment, gaming, core-banking system, Credit process/system, VPN, VoIP, Hospital information system, FHIR
- IT GRC: COBIT, ITIL
- Banking: BIAN, swift, iso 20022, FpML, XBRL, fineract, Mifos X, Mojaloop, flexcube and Oracle Banking Microservices


