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.