# Weihai Chen

> Principal Software Engineer at Owl Labs

Location: Malden, Massachusetts, United States
Profile: https://flows.cv/weihai

Results-driven Principal Software Engineer with 6+ years of experience designing, building, and scaling enterprise software solutions. Strong background in full-stack development — from Node.js and Spring Boot backends to React.js frontends — with proven expertise across AWS cloud services, data engineering, and distributed system design.

I focus on building high-performance, maintainable systems with a strong emphasis on clean architecture, observability, and data integrity. Over the years, I’ve led initiatives improving reliability, reducing infrastructure costs, and delivering major product features at scale. Passionate about mentoring teams, driving engineering standards, and bridging business and technology to deliver lasting impact.

Core strengths:

Backend architecture (Node.js, Spring Boot, Java, TypeScript)

Cloud & Data: AWS (Lambda, Cognito, Kinesis, Athena, Glue, Firehose), MySQL, PostgreSQL, MongoDB

Observability & Reliability: Honeycomb, X-Ray, OpenTelemetry

Full-stack delivery: React.js, WebSockets, REST APIs

System design, testing, scalability, CI/CD, and secure integrations

## Work Experience
### Principal Software Engineer @ Owl Labs
Jan 2025 – Present
Lead backend architecture and system design for enterprise-level software releases.

Built AWS-based data pipelines (Kinesis, Athena, Glue, Firehose) for analytics and event processing.

Delivered large-scale integrations and new proof-of-concepts supporting business expansion.

### Staff Software Engineer @ Owl Labs
Jan 2023 – Jan 2024
Enhanced internal engineering tools and dashboards for better usability and performance.

Resolved complex customer data requests, maintaining 100% satisfaction on service delivery.

Implemented key UX-focused backend features: MFA visibility, case-insensitive logins, and device management.

### Senior Full Stack Software Engineer @ Owl Labs
Jan 2021 – Jan 2023 | Boston, Massachusetts, United States
Improved unit test coverage from 0% → 80% across key backend modules (150+ tests).

Reduced observability costs by $150K through Honeycomb sampling optimizations.

Led rollout of Amazon Cognito-based SSO, introducing MFA and secure user migration.

### Software Engineer (Back End) @ Optum
Jan 2020 – Jan 2021 | Boston, Massachusetts, United States
I'm responsible for developing and steering Clean Code initiative to maximize production process within organization. Liaise and proactively engage with business personal to re-design old business processes. Create code, and improve server, server-side applications, and databases that combined with front-end codes and help create seamless experience for end-user.
Key Achievements:
• Received commendation and won first Place of Organization/Department Hackathon.
• Detected and fixed 87 defects within three months after joining new project.
• Increased general functionality of large web application by performing intensive bug fixes.

### Full-stack Developer @ Optum
Jan 2019 – Jan 2020 | Boston, Massachusetts
I was tasked with preparing and updating multiple data models and user flow to enhance user experience. Cultivated and sustained enduring relationships with Scrum Team to plan and execute multiple projects. Gathered, interpreted, and transformed old business data from Excel/Word documents into modern data models.
Key Achievements:
• Won third Place of Boston Optum Hackathon.
• Boosted maximum level of customer satisfaction by completing project development 50% ahead of schedule.

### Technology Development Program - Intern @ Optum
Jan 2018 – Jan 2018 | Boston, Massachusetts, United States


## Education
### Bachelor's degree in Computer Science
Manning College of Information and Computer Sciences, UMass Amherst


## Contact & Social
- LinkedIn: https://linkedin.com/in/weihai-chen-925584150

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Source: https://flows.cv/weihai
JSON Resume: https://flows.cv/weihai/resume.json
Last updated: 2026-03-28