Karol Olechno

Web Developer

karol@karololechno.co.uk
West London, UK
karololechno.co.uk
github.com/ko-karol
linkedin.com/in/ko-karol

Professional Summary

Web developer with a passion for creating dynamic and responsive web applications. Proficient in modern web technologies and frameworks, with a strong focus on user experience and performance.

Education

Web Development

2022 to 2024
Founders and Coders
  • Honed project skills by collaborating on multiple projects using the agile methodology
  • Acquired a good understanding of design thinking, prototyping, user research and user testing
  • Optimized team workflows and spearheaded appropriate devops practices
  • Achieved proficiency in full-stack development by working with React, NextJS, HTML, CSS, JS
  • Created a final MVP project to help children transition from primary to secondary school

Work Experience

Senior Software Engineer

Jan 2020 - Present
TechCorp Inc., San Francisco, CA
  • Led development of a microservices architecture that improved system reliability by 35%
  • Mentored junior developers and conducted code reviews to ensure code quality
  • Implemented CI/CD pipelines that reduced deployment time by 40%
  • Collaborated with product managers to define and prioritize features

Software Engineer

Mar 2017 - Dec 2019
InnovateSoft, San Jose, CA
  • Developed and maintained RESTful APIs serving 100K+ daily users
  • Optimized database queries resulting in 50% faster page load times
  • Built responsive front-end interfaces using React and TypeScript
  • Participated in agile development processes and sprint planning

Junior Developer

Jun 2015 - Feb 2017
StartupLabs, Oakland, CA
  • Assisted in developing web applications using JavaScript and PHP
  • Created and maintained documentation for internal systems
  • Collaborated with designers to implement UI/UX improvements

Skills

Programming Languages

JavaScript, TypeScript, Python, Java, SQL

Frameworks & Libraries

React, Node.js, Express, Next.js, Django

Tools & Platforms

Git, Docker, AWS, GCP, CI/CD, Kubernetes

Soft Skills

Team Leadership, Agile Methodologies, Technical Writing

Certifications

  • AWS Certified Solutions Architect (2021)
  • Google Cloud Professional Developer (2020)
  • Certified Scrum Master (2018)

Notable Projects

E-commerce Platform Redesign

Led a team of 5 developers to redesign and rebuild a high-traffic e-commerce platform, resulting in a 25% increase in conversion rates and 30% improvement in page load times.

Open Source Contribution - Data Visualization Library

Active contributor to a popular open-source data visualization library with 10K+ GitHub stars. Implemented new chart types and improved accessibility features.