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Hi, I'm Wan-Yu (Zoey) Lee, a seasoned full-stack engineer with over 10 years of experience leading projects and teams from concept to market. I specialize in building high-performance systems and have a strong background in mobile development, quality assurance, and DevOps. I am passionate about collaborating with cross-functional teams and enjoy creating impactful technology solutions. I thrive in dynamic environments where I can dive deep into innovative tech and breakthrough challenges. My goal is to continuously grow both professionally and personally while making a meaningful impact within the organization I work with.…Hi, I'm Wan-Yu (Zoey) Lee, a seasoned full-stack engineer with over 10 years of experience leading projects and teams from concept to market. I specialize in building high-performance systems and have a strong background in mobile development, quality assurance, and DevOps. I am passionate about collaborating with cross-functional teams and enjoy creating impactful technology solutions. I thrive in dynamic environments where I can dive deep into innovative tech and breakthrough challenges. My goal is to continuously grow both professionally and personally while making a meaningful impact within the organization I work with.

Wan-Yu (Zoey) Lee

Full Stack Developer, DevOps Developer, Cloud Developer, +4

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Hi, I'm Wan-Yu (Zoey) Lee, a seasoned full-stack engineer with over 10 years of experience leading projects and teams from concept to market. I specialize in building high-performance systems and have a strong background in mobile development, quality assurance, and DevOps. I am passionate about collaborating with cross-functional teams and enjoy creating impactful technology solutions. I thrive in dynamic environments where I can dive deep into innovative tech and breakthrough challenges. My goal is to continuously grow both professionally and personally while making a meaningful impact within the organization I work with.…Hi, I'm Wan-Yu (Zoey) Lee, a seasoned full-stack engineer with over 10 years of experience leading projects and teams from concept to market. I specialize in building high-performance systems and have a strong background in mobile development, quality assurance, and DevOps. I am passionate about collaborating with cross-functional teams and enjoy creating impactful technology solutions. I thrive in dynamic environments where I can dive deep into innovative tech and breakthrough challenges. My goal is to continuously grow both professionally and personally while making a meaningful impact within the organization I work with.

Available to hire

Hi, I’m Wan-Yu (Zoey) Lee, a seasoned full-stack engineer with over 10 years of experience leading projects and teams from concept to market. I specialize in building high-performance systems and have a strong background in mobile development, quality assurance, and DevOps. I am passionate about collaborating with cross-functional teams and enjoy creating impactful technology solutions.

I thrive in dynamic environments where I can dive deep into innovative tech and breakthrough challenges. My goal is to continuously grow both professionally and personally while making a meaningful impact within the organization I work with.

Skills

Experience Level

Expert

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Expert

Expert

Expert

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Expert

Expert

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Expert

Intermediate

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Intermediate

Intermediate

Work Experience

Senior Software Engineer at Bree Technologies Ltd

February 1, 2024 - Present

Led development of cutting-edge lending technology, driving company growth from 7 to 8 figures in annual revenue. Introduced new features to enhance release time, offering diverse payment methods to drive business growth. Led the development and launch of mobile app, overseeing testing, feature integration, UI design to market release, significantly enhancing user experience and driving new user growth. Managed software development tasks efficiently to support timely achievement of objectives.

Staff Software Engineer at M-DAQ Pte. Ltd

September 30, 2023 - July 23, 2025

Bridged gap between business team and developers to help both sides reach end goals smoother and faster. Led refactoring in Scrum development to increase team performance and system reliability. Improved system performance by 40% and reduced vulnerabilities by 40%. Enhanced release cadence from monthly to biweekly, improving release time by 60%. Optimized teamwork and alignment across departments to facilitate timely accomplishment of objectives.

Lead Full-stack Engineer at Treasure Cloud Pte. Ltd

September 30, 2021 - July 23, 2025

Collaborated with product manager and led diverse team across three countries to craft and execute business strategy. Successfully launched large-scale secure cloud storage service with end-to-end encryption, reaching 100k+ users and $330k USD revenues. Delivered ledger database services generating $100k SGD yearly. As scrum master, improved release time by 50% transitioning to biweekly releases. Collaborated with mobile, QA, DevOps teams to solve 60% of critical issues. Increased registration success rate by 60% after integrating marketing tool. Responsible for interviewing and onboarding new hires.

Freelancer at Self-employed

November 30, 2018 - July 23, 2025

Coordinated with customers to design and plan system requirements and processes. Built delivery workflow saving 30% of delivery time. Troubleshot system faults and repaired 40% of issues. Introduced frameworks saving 40% of development time.

Contract Senior Software Engineer at LILEE Systems

June 30, 2018 - July 23, 2025

Collaborated with multiple teams to redesign and refactor existing services to improve system performance and code quality. Integrated release process for easier deployment, minimizing deployment time. Supported risk analysis and library/framework upgrade recommendations. Reduced upgrade and delivery time by 50%. Improved page load time by 40%. Reviewed code to reduce errors and improve quality. Built automation installation to speed up install time by 40%.

Software Engineer at WISTRON Corp., Ltd | MRK300

July 31, 2018 - July 23, 2025

Led teams executing user requirements, collaborating with multiple teams to enhance user experience. Involved in full software development lifecycle and launched several successful products. Built internal role-based system integrating 3rd-party services saving $1M annually. Developed face recognition and access control system with real-time alerts to reduce costs. Launched online services reaching 500k active users in first month. Reduced operation costs by 40% through AWS migration. Developed high performance applications to handle large request volumes.

Software Engineer at GIGAENERGY Corp., Ltd. | Dept of Software

March 31, 2015 - July 23, 2025

Led projects bridging hardware and software teams with a team of 4 members. Developed and deployed cloud systems. Achieved a 30% reduction in theft annually by deploying real-time monitoring system. Improved energy usage by 40% through integration with electronic systems. Closed delayed project saving $300k TWD. Integrated new message formats improving process time by 30%.

Web Developer at CHUNGYI GROUP | Dept of Software

February 28, 2014 - July 23, 2025

Collaborated with planners to design and develop new features improving user experience and troubleshooting system faults. Refactored 60% of source code reducing duplicate code by 40%. Introduced a new game increasing active users by 3%-5% monthly. Improved registration time by 5% integrating with 3rd party register service. Repaired 50% of security holes based on security report.

Web Developer at KAL LIN Development Co., Ltd

October 31, 2012 - July 23, 2025

Planned and designed features and functions through full cycle software development and deployment. Simplified development process using frameworks saving 20% development time. Refactored applications removing 30% duplicate functions. Repaired 80% of issues and defects. Improved management performance by 40% developing and integrating system management tools.

Senior Software Engineer at Bree Technologies Ltd (Canada)

February 1, 2024 - Present

Led development of cutting-edge lending technology, driving company growth from 7 to 8 figures in annual revenue. Introduced new features to enhance release time, offering diverse payment methods to drive business growth. Led the development and launch of the mobile app, overseeing all phases from testing, feature integration, and user interface design to market release, significantly enhancing user experience and driving new user growth. Supported timely achievement of objectives through efficient management of software development tasks.

Staff Software Engineer at M-DAQ Pte. Ltd (Singapore)

September 30, 2023 - July 23, 2025

Bridged the gap between business team and developers to help both sides reach end goals faster. Refactored Scrum Software Development processes to increase team performance and system reliability. Improved system performance by 40% and reduced vulnerabilities by 40%. Improved release time by 60% by splitting team and transitioning from monthly to biweekly releases. Optimized teamwork and alignment across departments to facilitate timely objective accomplishment.

Lead Full-stack Engineer at Treasure Cloud Pte. Ltd (Singapore)

September 30, 2021 - July 23, 2025

Brainstormed and led a diverse team across three countries to craft and execute business strategy. Successfully launched large-scale secure cloud storage service with end-to-end encryption reaching 100k+ users and $330k USD in revenue. Delivered ledger database services with $100K SGD annual revenue. As scrum master, improved release time by 50% and transitioned to biweekly releases. Collaborated with cross-functional teams to solve 60% of critical issues. Increased registration success rate by 60% through marketing tool integration. Also responsible for interviewing and onboarding new hires.

Freelancer at Self-employed (Kaohsiung, Taiwan)

November 30, 2018 - July 23, 2025

Coordinated with customers, designed and planned system requirements and processes. Built delivery workflow saving 30% of delivery time. Troubleshot system faults and repaired 40% of issues. Introduced framework saving 40% of development time.

Contract Senior Software Engineer at LILEE Systems (San Jose, CA)

June 30, 2018 - July 23, 2025

Collaborated with multiple teams to redesign and refactor existing services to improve system performance and code quality. Integrated release processes to ease application delivery and minimize deployment time. Assisted with risk analysis and upgrade recommendations. Delivered 50% time savings during upgrades and new version delivery. Improved page load speed by 40%. Reviewed code with team members to reduce mistakes and improve code quality. Built automation install to speed up installation by 40%.

Software Engineer at WISTRON Corp., Ltd | MRK300 (Kaohsiung, Taiwan)

July 31, 2018 - July 23, 2025

Led teams to craft and execute user requirements and collaborated cross-functionally for enhanced user experiences. Involved in full-cycle software development and successful product launches. Built an internal role-based system integrating third-party services saving $1M annually. Developed face recognition and access control system with real-time alerts to reduce costs. Launched online services reaching 500k active users in the first month. Reduced operational costs by 40% through AWS migration. Developed high-performance applications to handle large request volumes.

Software Engineer at GIGAENERGY Corp., Ltd. | Dept of Software (Kaohsiung, Taiwan)

March 31, 2015 - July 23, 2025

Led several projects with a team of 4, bridging hardware and software engineering. Developed and deployed cloud systems. Reduced theft by 30% annually through real-time monitoring. Improved energy usage by 40% via electronic system integration. Closed delayed projects saving $300k TWD. Improved process time by 30% through new message format integration between device and server.

Web Developer at CHUNGYI GROUP | Dept of Software (Taichung, Taiwan)

February 28, 2014 - July 23, 2025

Collaborated with project planners to design and develop new features improving user experience and troubleshooting system faults. Refactored 60% of source code reducing repeat code by 40%. Increased active user base by 3-5% monthly after new game introduction. Speeded up registration time by 5% through 3rd party registration service integration. Repaired 50% of security holes reported.

Web Developer at KAL LIN Development Co., Ltd (Taichung, Taiwan)

October 31, 2012 - July 23, 2025

Planned and designed several features and functions, engaging in full-cycle software development and deployment. Simplified development process by using frameworks saving 20% of development time. Refactored applications removing 30% of duplicate functions. Repaired 80% of issues and defects. Improved system management performance by 40% through development and integration of management tools.