Alexander Paul Wansiedler

Hi there, I’m Alex 👋 (my CV and linktree)

What are my core skills? 🎯

✔ 13+ years in TS/Node.js (JS since 2001), 8+ in Go, 7+ in Rust/Solidity, 20+ in Python, PHP/SQL/C/C++ since 2003
✔ Extensive experience in microservices/monoliths, APIs (RPC/GraphQL/REST/WebSockets), profiling&optimisation, Unit/regression/E2E-testing
✔ 10+ Years of managing Infrastructure as Code (Terraform/Ansible) within AWS/GCP/Azure
✔ Mentorship/Codereview/Techleading/Projectmanagement
✔ Adapting Agile/Scrum/Kanban for cross-functional teams
✔ Experience in process transformation and architecture migration
✔ Experience in creating and supporting SaaS solutions

Who do I do?

I speak Data Structures & Algorithms, English, German, Russian and Chinese.

I am fluent in TypeScript for Node.js/Nest/Express/Fastify and React/Next.js, Angular/Universal, Vue.js/Nuxt.js, Svelt/Kit. Python for Django/Flask/FastAPI. Go Fiber for gRPC. Ruby for RoR. Java for Spring Boot/Micronaut, Groovy with Grails.

I also speak Rust for:

• WebAssembly
• Warp / Actix / Rocket
• Ethereum with openzeppelin (Solidity/Vyper, foundry/truffle/hardhat):
  • Arbitrum with stylus
  • Reth for L2 Optimism / Polygon / Binance Smart Chain / StarkNet etc.
• Solana (with mucho, anchor, fuzz, zest)
• Aptos (move SDK)
• SUI
• Fantom
• Flow
• Near
• Polkadot
• TON (Telegram Open Network)
• extensive expertise in Telegram bots programming

React Native/Expo, ObjC/Swift and Dart/Flutter (Kotlin in progress) are my go-to for mobile development.

I am in a love/hate relationship with C/C++ and FreeBSD. When I feel particularly nerdy I code Haskell and Lisp.

I am fluent in DevOps/Gitops dialects, Docker/Kubernetes/OpenStack, Ceph, OpenTelemetry, IaC and all around it. I enjoy working with Terraform & Ansible in AWS and GCP environments.

Who am I?

I am a developer, technical consultant and ex-CTO with over 20 years of progressively challenging technical successes in diversified, cutting-edge technologies with demonstrated and proven ability to organize, train and lead cross-functional teams in achieving superior results, making me a team player and a leader with a strong sense of responsibility.

I code everything that can be scripted, compiled or used as a microservice or a blockchain smart contract and lead teams to do the same.

I ❤️:

• My Family and Team
• TypeScript with Node.js Express/Nest.js/fastify with Sequelize/Prisma/TypeORM/Drizzle,
• Ethers.js with React(Solid.js, Redux, Zustand)+Next/Angular (NgRx)/Vue.js(Vuex, Pinia)/Quasar, TDD (with jest, cypress, playwright)
• Python with FastAPI/Django/Flask, Celery, and SQLAlchemy
• Golang with Gin/Echo/Fiber, PHP in Symfony/Laravel/Zend
• Apache Hadoop/Apache Kafka, Redis/RabbitMQ, PostgreSQL/MySQL, ElasticSearch, MongoDB, S3, Firebase, GraphQL
• Kubernetes: Advanced cluster design, monitoring and troubleshooting
• DevOps/GitOps Tools: ArgoCD, Flux and automated deployment strategies
• Infrastructure as Code: Crossplane, Terraform, AWS CDK and CloudFormation with Docker
• CI/CD Expertise: GitLab CI/CD, Jenkins and GitLab/GitHub Actions
• Cloud Platforms: Extensive experience with AWS, GCP and Azure
• Monitoring: Hands-on with Prometheus, Grafana and ELK Stack

My 🎖️ and 🏆:

• Certified Kubernetes Administrator (CKA)
• Certified Kubernetes Application Developer (CKAD)

• Certified Kubernetes Security Specialist (CKS)

• RHCSA (Red Hat Certified System Administrator)
• RHCE (Red Hat Certified Engineer)

• Red Hat Certified Specialist in Ansible Automation

• OpenJS Node.js Application Developer (JSNAD)

• OpenJS Node.js Services Developer (JSNSD)

• Certified Professional in Python Programming 2 (PCPP2™) in progress
• Certified Professional in Python Programming 1 (PCPP1™)
• Certified Associate in Python Programming (PCAP™)

• Certified Entry-Level Python Programmer (PCEP™)

• Oracle Certified Associate Java SE 8 Programmer

• Microsoft Azure Fundamentals AZ-900

I’m currently learning:

• JAX/Tensorflow
• Computer Vision in Pytorch/Keras & opencv