Jeff H
@jeffh
Senior software engineer with expertise in microservices and full-stack development.
What I'm looking for
As a Senior Software Engineer, I have a proven track record of developing high-performance microservices and applications that enhance operational efficiency and user satisfaction. At Buyandship Limited, I successfully developed over three production-ready microservices in Golang, which cut operational time by 40% and facilitated the launch of a new platform within just seven months. My collaborative approach with product managers and designers has consistently resulted in timely feature releases, achieving a 95% success rate in sprints.
Previously, at Clover Health, I focused on improving the scalability and performance of healthcare applications while ensuring HIPAA compliance. My efforts led to a 15% increase in user satisfaction and a system uptime of 99.95%. I take pride in my ability to write comprehensive Technical Design Documents that streamline onboarding for new developers and enhance team workflows. My commitment to quality is reflected in achieving 100% unit test coverage on key services, significantly reducing defect tracking time.
In addition to my professional experience, I have developed a cross-platform dating app as a personal project, showcasing my full-stack development skills and modern authentication techniques. I am passionate about leveraging technology to solve complex problems and continuously seek opportunities for growth and innovation in my career.
Experience
Work history, roles, and key accomplishments
Senior Software Engineer
Buyandship Limited
Apr 2024 - Present (1 year 3 months)
Developed 3+ production-ready microservices in Golang to manage catalog and fulfillment workflows, cutting operational time by 40% and launched a whole new platform within 7 months. Worked with 5+ product managers, designers, and stakeholders to turn PRDs and UI designs into tech specs that fit business goals, getting features out on time for 95% of sprints. Implemented RabbitMQ and RPC for depend
Software Engineer
Clover Health
Aug 2022 - Apr 2024 (1 year 8 months)
Boosted scalability and performance of healthcare apps using Python, ReactJS, HTML, and CSS, ensuring HIPAA-compliance. Wrote Technical Design Documents (TDDs) adopted by 5+ engineering teams, streamlining new developer onboarding and improving workflows. Achieved 100% unit test coverage on key services, maintaining app reliability and reducing defect tracking time by 25% with Grafana dashboards.
Application Developer
Caton Technology
Jul 2021 - Jul 2022 (1 year)
Improved file transfer speeds by over 50% and cut sync time by 40% on HTTP networks by building Golang microservices integrated with C++ for a custom protocol. Trimmed deployment cycles by 30% and downtime by 15%, enhancing infrastructure reliability with Docker containers and CI/CD setups. Established automated testing for microservices using Testify, increasing test coverage to 80%.
Education
Degrees, certifications, and relevant coursework
City University of Hong Kong
BSc, Computer Science
Grade: Second Class Honors, Upper Division
Completed a Bachelor of Science in Computer Science, focusing on core computer science principles and advanced topics. Graduated with Second Class Honors, Upper Division.
Hong Kong Institute of Vocational Education
Higher Diploma, Mobile Application Development
Grade: Distinction
Obtained a Higher Diploma in Mobile Application Development, gaining expertise in developing applications for mobile platforms. Achieved a Distinction for academic excellence.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Salary expectations
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