Technical Skills

Comprehensive overview of Billy Petersson's technical skills across frontend, backend, cloud, and DevOps technologies

Technical Skills & Expertise

Programming Languages

Primary Languages

  • JavaScript - Expert level proficiency in ES6+, Node.js, and browser environments
  • TypeScript - Advanced type-safe development for large-scale applications
  • Python - Extensive experience in web development, automation, and data processing
  • Java - Enterprise application development and microservices architecture
  • Go - High-performance backend services and cloud-native applications

Additional Languages

  • PHP - Legacy system maintenance and WordPress development
  • C# - .NET applications and enterprise solutions
  • SQL - Advanced database querying and optimization
  • Bash/Shell - System administration and automation scripting

Frontend Technologies

Frameworks & Libraries

  • React.js - Component-based UI development with hooks and context
  • Vue.js - Progressive framework for building user interfaces
  • Angular - Full-featured framework for enterprise applications
  • Svelte - Compiled frontend framework for optimal performance
  • Next.js - Full-stack React framework with SSR/SSG capabilities

Styling & Design

  • CSS3 - Advanced styling, animations, and responsive design
  • Sass/SCSS - CSS preprocessing and modular stylesheets
  • Tailwind CSS - Utility-first CSS framework for rapid development
  • Bootstrap - Responsive component library
  • Styled Components - CSS-in-JS for React applications

Build Tools & Development

  • Webpack - Module bundling and asset optimization
  • Vite - Fast build tool and development server
  • Babel - JavaScript transpilation and polyfills
  • ESLint - Code linting and style enforcement
  • Prettier - Code formatting and consistency

Backend Technologies

Web Frameworks

  • Express.js - Fast, unopinionated web framework for Node.js
  • NestJS - Scalable Node.js framework with TypeScript support
  • Django - High-level Python web framework
  • Flask - Lightweight Python web framework
  • Spring Boot - Java framework for microservices

Database Technologies

  • PostgreSQL - Advanced relational database management
  • MySQL - Traditional relational database systems
  • MongoDB - Document-oriented NoSQL database
  • Redis - In-memory data structure store and caching
  • Elasticsearch - Search and analytics engine

API Development

  • REST APIs - RESTful service design and implementation
  • GraphQL - Query language and runtime for APIs
  • WebSocket - Real-time bidirectional communication
  • gRPC - High-performance RPC framework
  • OpenAPI/Swagger - API documentation and specification

Cloud & Infrastructure

Cloud Platforms

  • Amazon Web Services (AWS) - Comprehensive cloud services
    • EC2, ECS, EKS, Lambda, S3, RDS, DynamoDB
    • CloudFormation, CloudWatch, VPC, IAM
    • Certified Solutions Architect - Professional
  • Microsoft Azure - Cloud computing services
    • App Service, Functions, Cosmos DB, Storage
  • Google Cloud Platform (GCP) - Google’s cloud infrastructure
    • Compute Engine, Cloud Functions, Cloud Storage

Containerization & Orchestration

  • Docker - Container platform for application packaging
  • Kubernetes - Container orchestration and management
  • Docker Compose - Multi-container application definition
  • Helm - Package manager for Kubernetes

Infrastructure as Code

  • Terraform - Infrastructure provisioning and management
  • AWS CloudFormation - AWS resource template deployment
  • Ansible - Configuration management and automation
  • Pulumi - Modern infrastructure as code platform

DevOps & CI/CD

Version Control

  • Git - Distributed version control system
  • GitHub - Code hosting and collaboration platform
  • GitLab - DevOps lifecycle management
  • Bitbucket - Git repository management

CI/CD Platforms

  • GitHub Actions - Automated workflow and deployment
  • Jenkins - Continuous integration and deployment
  • GitLab CI - Integrated CI/CD pipeline
  • CircleCI - Continuous integration platform

Monitoring & Observability

  • Prometheus - Monitoring and alerting toolkit
  • Grafana - Data visualization and monitoring
  • ELK Stack - Elasticsearch, Logstash, and Kibana
  • Datadog - Cloud monitoring platform
  • New Relic - Application performance monitoring

System Administration

Operating Systems

  • Linux - Ubuntu, CentOS, Amazon Linux, Alpine
  • Windows Server - Administration and management
  • macOS - Development environment setup

Networking & Security

  • TCP/IP - Network protocols and troubleshooting
  • DNS - Domain name system configuration
  • SSL/TLS - Certificate management and encryption
  • VPN - Virtual private network setup
  • Firewalls - Security policy implementation

Web Servers

  • Nginx - High-performance web server and reverse proxy
  • Apache - Traditional web server configuration
  • Caddy - Modern web server with automatic HTTPS
  • HAProxy - Load balancing and high availability

Development Tools & Practices

IDEs & Editors

  • Visual Studio Code - Primary development environment
  • IntelliJ IDEA - Java and full-stack development
  • WebStorm - JavaScript and TypeScript development
  • Vim - Terminal-based text editor

Testing Frameworks

  • Jest - JavaScript testing framework
  • Cypress - End-to-end testing for web applications
  • Pytest - Python testing framework
  • JUnit - Java unit testing framework
  • Postman - API testing and development

Project Management

  • Agile/Scrum - Iterative development methodology
  • Kanban - Visual workflow management
  • Jira - Issue tracking and project management
  • Trello - Visual project management tool

Certifications & Training

Current Certifications

  • AWS Certified Solutions Architect - Professional (2022)
  • Certified Kubernetes Application Developer (CKAD) (2023)
  • Certified Scrum Master (CSM) (2021)
  • CompTIA Security+ (2020)

Continuous Learning

  • Regular participation in online courses and workshops
  • Active contributor to open-source projects
  • Member of local tech meetups and conferences
  • Subscriber to industry publications and blogs

Soft Skills

Communication

  • Technical documentation and writing
  • Presentation and public speaking
  • Cross-functional team collaboration
  • Client communication and consulting

Leadership

  • Team mentoring and coaching
  • Technical decision making
  • Project planning and execution
  • Code review and quality assurance

Problem Solving

  • Debugging and troubleshooting
  • Performance optimization
  • Security vulnerability assessment
  • Scalability planning

This skills overview represents my current technical capabilities. I’m continuously learning and expanding my expertise to stay current with emerging technologies and industry best practices.