![James Chen](https://jobicy.com/react/themes/app/images/avatar.jpg) James Chen # Senior Software Engineer Actively looking · Member since 9 Sep 2025 [Message](https://jobicy.com/dashboard-page.md) ShareLocationUnited StatesDesired salaryfrom 64 USD/hourlyWork preferenceFull TimeExperience levelNot set * [Overview](#overview) * [Portfolio 0](#portfolio) * [Services 0](#services) ## About Professional summaryI am a Senior Full Stack Software Engineer with over 7 years of experience designing and delivering scalable web applications and cloud-native solutions across both startup and enterprise environments. I specialize in building secure, high-performance systems that enhance efficiency, compliance, and user experience. Throughout my career, I have demonstrated strong problem-solving skills and thrive in dynamic, fast-paced settings. I have a proven track record of driving measurable business impact through agile collaboration and modern software engineering practices. My expertise spans frontend and backend development, cloud infrastructure, and AI-driven automation features. I am passionate about creating robust, scalable software that meets user needs and business goals. At HubSpot, I led the development of end-to-end features for the CRM platform, improving efficiency and customer retention significantly. I engineered distributed backend microservices and designed scalable AWS cloud infrastructure to ensure high availability and fault tolerance. I also mentored a team of developers, fostering a strong engineering culture and improving delivery velocity. Previously, I contributed to ClickUp’s project management SaaS by delivering scalable full-stack features and optimizing frontend performance. I built real-time collaborative tools and contributed to backend microservices supporting millions of daily transactions. I am committed to quality, implementing comprehensive testing strategies that reduced production incidents. I hold a Bachelor's Degree in Computer Science from the University of Houston. I am skilled in multiple programming languages, frameworks, cloud technologies, and testing tools. I continuously seek to leverage AI and automation to improve software capabilities and user productivity. ## Skills 20 capabilities[Apache Maven](https://jobicy.com/talent/apache-maven.md)[AWS S3](https://jobicy.com/talent/aws-s3.md)[CI CD](https://jobicy.com/talent/ci-cd.md)[Cypress](https://jobicy.com/talent/cypress.md)[Django](https://jobicy.com/talent/django.md)[Java](https://jobicy.com/talent/java.md)[Junit](https://jobicy.com/talent/junit.md)[Kafka](https://jobicy.com/talent/kafka.md)[Mentoring](https://jobicy.com/talent/mentoring.md)[MongoDB](https://jobicy.com/talent/mongodb.md)[MySQL](https://jobicy.com/talent/mysql.md)[PostgreSQL](https://jobicy.com/talent/postgresql.md)[Python](https://jobicy.com/talent/python.md)[React](https://jobicy.com/talent/react.md)[Redis](https://jobicy.com/talent/redis.md)[Ruby on Rails](https://jobicy.com/talent/ruby-on-rails.md)[Spring Boot](https://jobicy.com/talent/spring-boot.md)[Team Leadership](https://jobicy.com/talent/team-leadership.md)[Terraform](https://jobicy.com/talent/terraform.md)[TypeScript](https://jobicy.com/talent/typescript.md) ## Experience Career history ### Senior Software Engineer · Hubspot Sep 2022 – Aug 2025Released end-to-end features for the HubSpot CRM platform including workflow automation, reporting dashboards, and admin controls, driving a 20% improvement in efficiency and 15% higher customer retention. Delivered frontend development in React and TypeScript, applying memoization, SSR, and reusable component design, improving page load times by 40%. Engineered distributed backend microservices with Java (Spring Boot) and Python (Django), leveraging Kafka for event streaming to process 5M+ daily events with 99.9% uptime. Designed and deployed RESTful and GraphQL APIs managing 10K+ daily API calls and enabling integration with third-party tools like Salesforce, Slack, and LinkedIn. Implemented AI and automation features cutting manual workload by 35% and driving 22% sales productivity gains. Strengthened platform reliability by developing unit, integration, and end-to-end tests reducing regression defects by 40%. Designed scalable AWS cloud infrastructure with CI/CD pipelines in GitHub Actions and Jenkins. Led and mentored a team of 7 developers in an Agile environment, optimizing sprint planning and increasing delivery velocity by 18%. ### Full Stack Developer · ClickUp May 2018 – Jul 2022Delivered scalable full-stack features for ClickUp’s project management SaaS improving system reliability and customer experience for 2M+ active users. Built a real-time collaborative whiteboard using React, TypeScript, and WebSockets enabling multi-user editing with latency under 200ms, boosting team collaboration adoption rates by 28%. Optimized frontend performance with reusable component libraries, advanced state management, memoization, and SSR improving page load speed by 38% and reducing client-side errors by 22%. Contributed to the Task Management microservice (Node.js, Ruby), powering APIs for task creation, automation workflows, and SaaS integrations supporting 10M+ daily task transactions. Championed quality by implementing unit, integration, and E2E tests increasing test coverage from 65% to 92% and reducing production incidents by 30%. Collaborated in an Agile environment driving sprint velocity and aligning engineering deliverables with product goals, accelerating feature release cycles by 20%. ## Education Learning history ### University of Houston Sep 2014 – Mar 2018Bachelor of Computer Science This professional hasn’t added portfolio projects yet. This professional hasn’t listed any services yet.