Sarah Johnson

Professional Summary

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, London, UK

2021-03-01 - Present

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, Manchester, UK

2018-06-01 - 2021-02-28

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, Bristol, UK

2016-09-01 - 2018-05-31

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

2014-10-01 - 2016-06-30

Grade: Distinction

Advanced Algorithms
Distributed Systems
Machine Learning
Software Engineering Principles

Bachelor of Science in Mathematics

University of Bristol

2011-09-01 - 2014-06-30

Grade: First Class Honours (1st)

Applied Mathematics
Statistics
Computational Mathematics
Linear Algebra

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

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

Projects

Open Source Task Manager - https://github.com/sjohnson/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

Job Search Automation Tool - https://github.com/sjohnson/job-hunter

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