Software Design & Architecture |
SOA, Microservices, Serverless, SPA, SSR, PWA, Message Queues, 12-factor app, Zero Trust, Service Mesh, Design Patterns, Availability, Reliability, Autoscaling, Scheduling, SOLID, KISS, DRY, YAGNI, Semantic Versioning, C4 model, UML |
Clouds |
AWS: S3, EC2, CloudFront, CloudFormation, Beanstalk, Route53, IAM, RDS, DynamoDB, Glacier, ElasticCache, Organizations, CloudWatch, VPC, EKS, ECR,… GCP, Azure, Hetzner, Digital Ocean, Cloudflare
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Networks |
Port forwarding, VPN, Site-2-Site, Firewalls, Load balancing, Proxy, Reverse Proxy, Caching, CDN
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Protocols |
OSI Model, TCP, IP, UDP, HTTP, HTTPS, DNS, SMTP, POP, IMAP, DMARC, SPF, FTP, SSH, SSL/TLS, REST, GraphQL, CORS, gRPC, SOAP
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Operating System |
Virtualization, I/O management, Memory/Storage, File Systems, Networking, Processes, Sockets, Posix, initd, systemd, Threads, Linux, Windows, MacOS
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Containers & orchestration: |
Kubernetes, Docker Swarm, Rancher, Docker Swarm, Docker compose
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Servers |
Apache, nginx, php-fpm, HAProxy, Traefik
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Databases |
MySQL, PostreSQL, Mongo, Redis, Memcache, Clickhouse, ElasticSearch, LDAP, ACID, CAP, AWS Athena, OpenLDAP
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CM and IaC |
Terraform, Ansible, GitOps, HELM
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Monitoring & Incident Mngt. |
Prometheus, Grafana, CloudWatch, Zabbix, Jaeger, Sentry, Loki, Elastic Stack, New Relic, Load testing & Performance optimization, APM, Grafana on-call, StatusPage, SquadCast, OpsGenie, AppDynamics, SLO, SLOTH, 4 Golden Signals
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Security |
HashiCorp Vault, AWS Secrets, Lets Encrypt, git-secret, ZAP, SonarQube, OWASP, Auth0, SAML, BurpSuite, Metasploit Framework, Wireshark, Wifite, CubicSDR
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CI/CD: |
GitLab CI/CD, GitHub Actions, BitBucket pipeline, ArgoCD, Jenkins, CircleCI, Blue-Green deployment, Roling Updates / Rollbacks
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Languages |
PHP5, JS, Node.js, Python, Go, SQL HTML5, CSS3, SASS, LESS, Swift, Java, Scala, Bash
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Frameworks & Libraries |
Laravel, Symfony, Zend, React, Angular, Vue.js, Spring, Next.js, Scrapy
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IoT |
PlatformIO, STM32CubeIDE, Arduino, ESP32, ZigBee, Home Assistant, RTOS, MQTT
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Message Queues |
RabbitMQ, Redis, NATS, SQS, Gearman
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Tools |
Git, Swagger, Postman, Selenium, JIRA, Google Apps, JIRA, Monday, Harvest, Togl, Trello, n8n, Slack, HubSpot, Redash, Metabase, PowerBI
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Science |
Reproducible Research, Jupyter Notebooks, numpy, pandas
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AI |
Vector Embeddings, GitHub co-pilot, ChatGPT API
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Other |
BPMN, TDD, BDD, Scrum, Agile, Kanban |