Sarah Johnson

Senior Software Engineer
Experienced software engineer with 8+ years of expertise in full-stack development, cloud architecture, and team leadership. Passionate about building scalable systems and mentoring junior developers. Proven track record of delivering high-impact projects in fast-paced environments.

Professional Experience

Senior Software Engineer
TechCorp Solutions Ltd
2021-03 - Present
London, UK
Lead engineer responsible for architecting and implementing cloud-native microservices platform serving 2M+ users.
  • Designed and implemented microservices architecture reducing system latency by 45%
  • Led team of 5 engineers in migrating legacy monolith to AWS cloud infrastructure
  • Established CI/CD pipeline reducing deployment time from 2 hours to 15 minutes
  • Mentored 3 junior developers, 2 of whom were promoted to mid-level roles
Software Engineer
Digital Innovation Group
2018-06 - 2021-02
Manchester, UK
Full-stack developer building customer-facing web applications and internal tools for financial services clients.
  • Developed RESTful APIs using Django and PostgreSQL handling 50K+ daily requests
  • Built React-based dashboard improving client reporting efficiency by 60%
  • Implemented automated testing framework achieving 85% code coverage
  • Collaborated with UX team to redesign product interface, increasing user engagement by 35%
Junior Software Developer
StartupHub Ventures
2016-09 - 2018-05
Bristol, UK
Entry-level developer contributing to e-commerce platform development and maintenance.
  • Implemented new payment gateway integration increasing conversion rate by 12%
  • Fixed critical bugs in production reducing customer complaints by 40%
  • Participated in agile ceremonies and sprint planning sessions
  • Completed comprehensive onboarding program covering modern web development practices

Education

Master of Science in Computer Science
University of Cambridge
2014 - 2016 • Distinction
Bachelor of Science in Mathematics
University of Bristol
2011 - 2014 • First Class Honours (1st)

Skills

Programming Languages
Python, JavaScript, TypeScript, Java, SQL
Web Frameworks
Django, React, Node.js, Express, FastAPI
Cloud & DevOps
AWS, Docker, Kubernetes, CI/CD, Terraform, Jenkins
Databases
PostgreSQL, MongoDB, Redis, MySQL, DynamoDB
Tools & Methodologies
Git, Agile/Scrum, REST APIs, GraphQL, Microservices, TDD

Projects

Open Source Task Manager
Collaborative task management tool built with React and Django
  • Built real-time collaboration features using WebSockets
  • Implemented OAuth2 authentication supporting Google and GitHub
  • Achieved 500+ stars on GitHub and 2,000+ active users
React, Django, WebSockets, OAuth2
Job Search Automation Tool
Python CLI tool automating job application tracking and research
  • Scraped job postings from 10+ major job boards
  • Implemented ML-based job matching algorithm
  • Used by 100+ developers in beta testing
Python, Web Scraping, Machine Learning

Certifications

AWS Certified Solutions Architect - Professional
Amazon Web Services • 2022-08-15
Certified Kubernetes Application Developer (CKAD)
Cloud Native Computing Foundation • 2021-11-20
Professional Scrum Master I (PSM I)
Scrum.org • 2020-03-10