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Jiachen TianJT

Jiachen Tian

Staff Engineer

€550/day
Amsterdam, NL
3-7 years

Average response time: 1 hour

About Jiachen

Hi, I’m Jiachen — a Staff Engineer (SRE/DevOps) with 5+ years of experience delivering scalable, cost-optimized, and AI-powered infrastructure across Europe, the U.S., and China.

I help teams build high-reliability systems, automate operations, and improve cloud cost visibility. I’ve led SRE platforms for 100+ microservices on AWS, Azure, and Huawei Cloud, integrating Prometheus, ClickHouse, Kafka, and Spring Boot.

Whether you need backend development, observability setup, or infra cost reduction, I bring hands-on expertise and strategic thinking to your team.

Let’s make your infrastructure smarter and faster.
  • English

    Native or bilingual

  • Chinese

    Native or bilingual

Can work on-site
Amsterdam (up to 50km)

Experience

  • NIO (Digital Development)
    Staff Engineer
    June 2024 - Today (2 years)
    Amsterdam, Netherlands
    Built the European SRE ecosystem from scratch, integrating backend engineering with AI automation for high-reliability, cost
    efficient infrastructure.

    Delivered multi-cloud (AWS, Azure, Huawei Cloud) pricing & tracking for 100+ microservices, saving ~15% monthly.

    Developed Spring Boot + Kubernetes DB migration platform with automated failover & metadata sync — cut migration time by 80% , doubled reliability.

    Created Java/Go/Agent auto-kill platform for CPU, I/O, blocking, deadlocks — reduced DB incidents by 70%+.

    Integrated Prometheus, ClickHouse, MySQL into T+1 billing & anomaly alert pipeline.

    Decommissioned low-value services, reducing resource usage & operational overhead.
    MySQL Spring boot Site Reliability Engineering Cloud automation
  • Huawei (Digital Power)
    SRE
    October 2023 - June 2024 (8 months)
    The Hague, Netherlands
    Migrated millions of solar facilities to cloud platform with zero downtime.

    Implemented proactive maintenance strategy, reducing production issues.

    Managed RDS, ECS, Kafka, Redis procurement — reduced annualized cloud spend by €300K within three months.
    Cloud Site Reliability Engineering
  • Huawei (Digital Power)
    Full-Stack Engineer
    August 2021 - August 2023 (2 years)
    Shenzhen, Guangdong Province, China
    Unified multiple web apps into cloud framework using Java, Spring Boot, React, Nginx, Docker, Kubernetes.

    Led cloud transformation projects, improving efficiency & verification speed.

    Managed Kubernetes microservices with zero post-launch defects.

    Conducted cloud tech training, enhancing team delivery capabilities.
    Spring boot Java Cloud

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Education

  • B.Sc. Computer Engineering
    University of Pittsburgh
    2021
    B.Sc. Computer Engineering

Skill set

Categories