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I’m Jia n Bo Zhu (朱建波), a Java back-end software engineer with over ten years of experience designing and building internet platforms, distributed systems, and high-performance services. I’ve worked across the full lifecycle—from architecture and core feature development to performance tuning and reliable operations—often supporting large-scale, high-concurrency scenarios in payment, e-commerce, and marketing systems. I also bring strong team and delivery skills: I’ve led technical teams for more than three years, mentored new colleagues, and handled project-related work with a focus on business outcomes. Alongside my engineering strengths in Java/OOP, Spring ecosystem, RPC, MQ, caching, and databases, I enjoy applying structured thinking to translate business requirements into maintainable architectures and efficient implementations.…I’m Jia n Bo Zhu (朱建波), a Java back-end software engineer with over ten years of experience designing and building internet platforms, distributed systems, and high-performance services. I’ve worked across the full lifecycle—from architecture and core feature development to performance tuning and reliable operations—often supporting large-scale, high-concurrency scenarios in payment, e-commerce, and marketing systems. I also bring strong team and delivery skills: I’ve led technical teams for more than three years, mentored new colleagues, and handled project-related work with a focus on business outcomes. Alongside my engineering strengths in Java/OOP, Spring ecosystem, RPC, MQ, caching, and databases, I enjoy applying structured thinking to translate business requirements into maintainable architectures and efficient implementations.

朱建波

Back-End Developer, Software Engineer, Full Stack Developer, +1

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I’m Jia n Bo Zhu (朱建波), a Java back-end software engineer with over ten years of experience designing and building internet platforms, distributed systems, and high-performance services. I’ve worked across the full lifecycle—from architecture and core feature development to performance tuning and reliable operations—often supporting large-scale, high-concurrency scenarios in payment, e-commerce, and marketing systems. I also bring strong team and delivery skills: I’ve led technical teams for more than three years, mentored new colleagues, and handled project-related work with a focus on business outcomes. Alongside my engineering strengths in Java/OOP, Spring ecosystem, RPC, MQ, caching, and databases, I enjoy applying structured thinking to translate business requirements into maintainable architectures and efficient implementations.…I’m Jia n Bo Zhu (朱建波), a Java back-end software engineer with over ten years of experience designing and building internet platforms, distributed systems, and high-performance services. I’ve worked across the full lifecycle—from architecture and core feature development to performance tuning and reliable operations—often supporting large-scale, high-concurrency scenarios in payment, e-commerce, and marketing systems. I also bring strong team and delivery skills: I’ve led technical teams for more than three years, mentored new colleagues, and handled project-related work with a focus on business outcomes. Alongside my engineering strengths in Java/OOP, Spring ecosystem, RPC, MQ, caching, and databases, I enjoy applying structured thinking to translate business requirements into maintainable architectures and efficient implementations.

Available to hire

I’m Jia n Bo Zhu (朱建波), a Java back-end software engineer with over ten years of experience designing and building internet platforms, distributed systems, and high-performance services. I’ve worked across the full lifecycle—from architecture and core feature development to performance tuning and reliable operations—often supporting large-scale, high-concurrency scenarios in payment, e-commerce, and marketing systems.

I also bring strong team and delivery skills: I’ve led technical teams for more than three years, mentored new colleagues, and handled project-related work with a focus on business outcomes. Alongside my engineering strengths in Java/OOP, Spring ecosystem, RPC, MQ, caching, and databases, I enjoy applying structured thinking to translate business requirements into maintainable architectures and efficient implementations.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Advanced

Chinese

Fluent

Work Experience

Sr Software Engineer at Cotti Coffee (Tianjin)

November 1, 2025 - Present

Responsible for the architectural design and core feature development of the company’s marketing platform, including the coupon system and campaign configuration engine. Supported efficient operation of marketing activities across channels. Achieved fast onboarding and delivered multiple key requirements, such as high-concurrency “Monday Free Order” marketing campaign, the overseas “Trendy Play” feature, and a third-party channel coupon distribution and traffic acquisition project for “Taobao Flash Sale,” supporting marketing growth in domestic and international markets.

Sr Software Engineer at PayPal Payments (Beijing) Co., Ltd.

June 1, 2021 - August 1, 2025

Designed, developed, and maintained the back-end of PayPal’s merchant products and services in China, and participated in team recruiting and guiding new colleagues. Drove successful launch of PayPal’s cross-border payment product for Chinese merchants in 2023. Developed user registration/authentication processes and built a rule engine for user identity verification from scratch. Unified third-party service integration and streamlined development workflows, reducing new rule deployment time from over two weeks to two days. Improved merchant satisfaction by cutting payment processing time from 3–5 days to under 1 day and reducing transaction fees.

Technical Expert (L8) at Beijing Sankua Online Technology Co., Ltd.

February 1, 2016 - May 31, 2021

Designed and developed food category and marketing back-end services; maintained systems; improved system stability and performance. Interviewed and mentored new joiners. Supported rapid iteration and system stability for category operations and coupon services during Meituan Waimai’s daily order surges (from ~2 million to over 40 million). Handled over 1.5 billion daily calls to core services with QPS exceeding 15,000 and achieved 99.99% availability for key interfaces.

Software Engineer at Beijing Shansong Technology Co., Ltd.

February 1, 2015 - December 31, 2015

Responsible for design, development, and maintenance of the official website, back-end operations system, and client interface systems, including coupon system and push system. Handled and optimized system performance issues. Achieved major improvements in operational efficiency and system performance/stability: daily order surged from under 300 to over 40,000; optimized order management page load time reduced from over 45 seconds to under 3 seconds.

R&D Manager at Beijing Sohu New Media Information Technology Co., Ltd.

March 1, 2012 - January 31, 2015

Responsible for development of Sohu News client data interface services and back-end services. Managed personnel recruitment and team performance evaluation (team size included 10 subordinates). Achieved major growth of active users to a peak of 70 million, with installations exceeding 200 million and daily average PV in the billions for main interfaces. Received outstanding individual and outstanding team honors in 2012 and achieved A-level annual performance ratings.

Software Engineer at Fortune Software (Beijing) Co., Ltd.

August 1, 2008 - February 28, 2012

Worked on website development and maintenance and social network service (SNS) development. As the main R&D engineer, completed development and operational support for the Third China Stock Market Master Competition hosted by the company, receiving the company’s 2010 Best Project Award.

Software Engineer / Project Manager at Beijing Huake Guangtong Information Technology Co., Ltd.

July 1, 2005 - June 30, 2008

Responsible for software project requirements, design, development process management, project implementation, software requirement change management, and delivery/acceptance. As project manager for an ERP system for Zhanjia Dongxing Petroleum Enterprise Co., Ltd., completed the full process from requirements to acceptance, and the project generated over RMB 9 million in revenue.