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Michael michaelkleinhandler

@michaelmichaelkleinh

Message

Results-driven SDET and full-stack engineer specializing in test automation.

United States

Message

What I'm looking for

I seek roles emphasizing test automation, cloud-native architectures, and cross-functional collaboration, with opportunities to lead testing strategy and mentor engineers.

I am a results-driven Software Engineer in Test with 5+ years automating testing processes and building scalable applications using Node.js, React, TypeScript, GraphQL, and AWS services. I have led test automation strategies that increased coverage and reduced manual testing efforts while collaborating with cross-functional teams to deliver reliable, high-quality software.

I have hands-on experience designing end-to-end and performance testing frameworks (Selenium, Cypress, K6, JMeter), optimizing databases and CI/CD pipelines, and mentoring junior SDETs to improve defect rates and onboarding. I am passionate about cloud-native architectures, continuous improvement in testing practices, and driving measurable improvements in system stability and performance.

Experience

Work history, roles, and key accomplishments

Current

Senior Full Stack Developer

Current

Fidelity Investments

Jan 2023 - Present (3 years)

Spearheaded test automation for a financial planning app, increasing test coverage 60% and reducing manual testing effort 70% through Selenium and Cypress; executed performance tests that improved system performance 35%.

Apollo GraphQL AWS Lambda Selenium Cypress Performance Testing Test Automation CI CD

Full Stack Engineer

Fidelity Investments

Apr 2022 - Jan 2023 (9 months)

Led automated test suites for a developer portal achieving 85% coverage and implemented contract testing to reduce integration issues 50%; built K6 load tests that improved throughput 20%.

Cypress Jest Contract Testing PostgreSQL GitHub Actions API Testing CI CD OAUTH2

Software Engineer

Fidelity Investments

Jul 2021 - Apr 2022 (9 months)

Developed testing frameworks for trading analytics dashboards, automated API tests achieving 99.9% data accuracy, and created reusable test components in Storybook reducing maintenance overhead.

React Redux Postman Supertest Storybook API Testing Root Cause Analysis Accessibility Testing Automation

Associate Software Engineer

Fidelity Investments

Jun 2020 - Jul 2021 (1 year 1 month)

Built automated tests for customer account interfaces and SQL-based test cases for MySQL APIs, improving data integrity and reducing error rates by 30%.

Redux MySQL React Hook Form Docker Compose Test Automation API Testing

Technical Intern

Fidelity Investments

May 2018 - Jul 2020 (2 years 2 months)

Developed a PoC testing framework for an expense tracker using Node.js and React, and created REST API tests with Postman and Jest achieving 75% coverage.