Work Experience
Billy Petersson's professional work experience in IT, software development, and technology leadership roles
Work Experience
Senior Software Engineer
TechCorp Solutions • January 2022 - Present
Leading full-stack development initiatives for enterprise-level applications serving over 500,000 users. Architecting scalable solutions using modern web technologies and cloud infrastructure.
Key Responsibilities:
- Lead a team of 5 developers in designing and implementing microservices architecture
- Architect and develop React-based frontend applications with TypeScript
- Design and implement RESTful APIs using Node.js and PostgreSQL
- Optimize application performance resulting in 40% reduction in load times
- Implement CI/CD pipelines using GitHub Actions and AWS services
Major Achievements:
- Spearheaded migration to Kubernetes, reducing infrastructure costs by 30%
- Implemented automated testing strategies, increasing code coverage to 95%
- Mentored junior developers and established coding standards across the team
- Led security audit resulting in SOC 2 Type II compliance
Technologies Used: React, TypeScript, Node.js, PostgreSQL, AWS, Kubernetes, Docker, Jest, Cypress
Full-Stack Developer
Digital Innovations Inc. • March 2020 - December 2021
Developed and maintained web applications for clients across various industries including healthcare, finance, and e-commerce. Collaborated with cross-functional teams to deliver high-quality solutions.
Key Responsibilities:
- Built responsive web applications using Vue.js and Django
- Integrated third-party APIs and payment processing systems
- Implemented real-time features using WebSocket technology
- Optimized database queries and improved application performance
- Participated in code reviews and maintained coding standards
Major Achievements:
- Delivered 15+ client projects on time and within budget
- Reduced API response times by 50% through query optimization
- Implemented automated deployment processes using Jenkins
- Contributed to open-source projects used by the development team
Technologies Used: Vue.js, Django, Python, MySQL, Redis, Docker, Jenkins, AWS
Software Developer
StartupTech Ventures • June 2018 - February 2020
Joined as an early-stage employee to help build the core product platform. Worked in a fast-paced startup environment with direct responsibility for multiple product features.
Key Responsibilities:
- Developed MVP features for B2B SaaS platform
- Built data analytics dashboard using React and D3.js
- Implemented user authentication and authorization systems
- Created automated testing suites for critical business logic
- Collaborated with product managers to define technical requirements
Major Achievements:
- Developed core features that contributed to $2M Series A funding
- Implemented analytics platform processing 1M+ events daily
- Built real-time notification system handling 100K+ messages per day
- Established development workflows and documentation standards
Technologies Used: React, Node.js, MongoDB, Socket.io, D3.js, Mocha, AWS
Junior Web Developer
WebCraft Agency • September 2016 - May 2018
Started my professional career developing custom websites and web applications for small to medium-sized businesses. Gained experience in full-stack development and client communication.
Key Responsibilities:
- Developed custom WordPress themes and plugins
- Built responsive websites using HTML, CSS, and JavaScript
- Implemented e-commerce solutions using WooCommerce
- Provided technical support and maintenance for client websites
- Collaborated with designers to translate mockups into functional websites
Major Achievements:
- Delivered 50+ websites with 98% client satisfaction rating
- Developed reusable component library that reduced development time by 25%
- Implemented SEO best practices resulting in improved search rankings
- Built automated backup and monitoring systems for client websites
Technologies Used: WordPress, PHP, MySQL, JavaScript, jQuery, HTML/CSS, Adobe Creative Suite
IT Support Specialist (Part-time)
University of Technology • January 2015 - August 2016
Provided technical support for students and faculty while completing my degree. Gained experience in troubleshooting, system administration, and customer service.
Key Responsibilities:
- Provided technical support for Windows and macOS systems
- Maintained computer lab equipment and software installations
- Assisted with network troubleshooting and printer maintenance
- Created documentation and training materials for common issues
- Supported online learning platforms and video conferencing systems
Major Achievements:
- Reduced average ticket resolution time by 30%
- Implemented automated software deployment process
- Trained 20+ student assistants on support procedures
- Maintained 99.5% uptime for critical lab systems
Technologies Used: Windows Server, Active Directory, VMware, Network Administration, Help Desk Software
Key Projects & Contributions
Open Source Contributions
- React Component Library - Created and maintain a popular UI component library with 5K+ GitHub stars
- Database Migration Tool - Contributed to open-source database migration utility used by 500+ companies
- API Documentation Generator - Developed automated API documentation tool for Node.js applications
Speaking & Community Involvement
- Local Tech Meetups - Regular speaker on topics including React, Node.js, and cloud architecture
- Conference Presentations - Presented at 3 regional technology conferences
- Mentorship Program - Mentor for local coding bootcamp graduates transitioning to tech careers
Certifications & Professional Development
- AWS Certified Solutions Architect - Professional (2022)
- Certified Kubernetes Application Developer (CKAD) (2023)
- Certified Scrum Master (CSM) (2021)
- Continuous Learning - Regular participation in online courses and workshops
Skills Development Timeline
Throughout my career, I’ve continuously expanded my technical expertise:
2016-2018: Foundation in web development (HTML, CSS, JavaScript, PHP) 2018-2020: Advanced frontend frameworks (React, Vue.js) and backend APIs 2020-2022: Cloud infrastructure, containerization, and DevOps practices 2022-Present: Microservices architecture, Kubernetes, and team leadership
This progression reflects my commitment to staying current with emerging technologies and taking on increasing levels of responsibility in complex technical projects.
Interested in learning more about my experience or discussing potential opportunities? Contact me to start a conversation.