Tiexin Guo
Software engineer — DevOps, SRE, and cloud architecture. CNCF Ambassador, AWS Certified Solutions Architect – Professional.
Highlights
- Cloud Native Computing Foundation (CNCF) Ambassador, three years in a row.
- AWS Certified Solutions Architect – Professional.
- Member of a project management committee (PPMC) and core contributor in open source.
- Guest contributor for DevOps.com, and invited DevSecOps expert for GitGuardian and Doppler, both DevSecOps startups.
- Founder and lead writer of the Medium DevOps publication 4th Coffee.
- Creator of a Chrome extension with 30,000+ users in the EU.
Experience
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Lenovo · Advisory DevOps Engineer / SRE
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Canonical · Open-Source Software Developer
- Key contributor to the operator framework and Pebble, a lightweight service manager; the only member of the team to complete every assigned roadmap item.
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Flexport · Staff Software Engineer
- Joined as the third staff engineer in the APAC region.
- Evangelized DevOps, DevSecOps, GitOps, and platform engineering to teams globally; set up GitOps with Argo CD, AWS Secrets Manager, and Backstage following DevSecOps best practice.
- Migrated dozens of microservices from AWS ECS to EKS, cutting cost and shortening time to deploy and time to roll back.
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Merico · Senior DevOps Expert, Principal of Chengdu Branch
- Built the SaaS version of our in-house open-source product from scratch, single-handedly.
- Designed and implemented an open-source DevOps toolchain manager from scratch, grew its community, and took it into the CNCF successfully.
- Led a team of seven.
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Huawei Technologies · Architect / Software Expert
- Coached 200+ engineers across three R&D centers on DevOps, clean code, and refactoring.
- Multiplied the performance of Huawei Cloud's security product, from architecture down to hands-on detail.
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Amazon Web Services · Senior DevOps Consultant
- Led multi-million-euro DevOps and cloud projects for global financial corporations, architecting and implementing cloud and hybrid solutions with a high bar for performance, resilience, and security.
- Led conversations, demos, and presentations for customers' C-level executives.
- Coached internal teams and AWS customers on DevOps, agile, and software engineering practice.
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Allianz Technology · Senior SRE
- Implemented the entire infrastructure for Allianz Direct from scratch, serving millions of users in four EU countries.
- Led the Container Runtime Platform 2.0 project (team of 13), participated in every architectural decision, and contributed 90% of the code. The platform served hundreds of Allianz branches, companies, and teams worldwide.
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KI labs GmbH · Cloud Architect / CTO
- Created and grew the cloud engineering team from scratch; interviewed 200+ candidates in 18 months and grew the organization from 20 to 80 people.
- Founded and led the engineering committee, acting as CTO before the company had one, and created the engineering career path. Hired a CTO to replace me so I could return to cloud architecture.
- Architected and implemented cloud-native infrastructure from scratch on AWS, GCP, and Azure for several customers in parallel — 100% infrastructure as code, configuration management, and continuous deployment. Customers included Mercedes, AMG, Lanxess, and Apobank; projects included on-premises private cloud automation (20,000+ servers with Kubernetes, containers, and Ceph).
- Evangelized DevOps culture to frontend, backend, and data science teams, and to global customers; led demos and presentations for C-level audiences.
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MYJAR · Senior SRE
- Migrated on-premises VM-based infrastructure entirely to AWS, saving over 50% in cost and increasing deployment velocity by 50%.
- Refactored the monolith into microservices to remove performance bottlenecks and enable frequent deployments.
- Rewrote the CI/CD pipelines with configuration management, eliminating manual errors and duplicated code.
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Kühne+Nagel · Senior DevOps Engineer
- Moved the engineering team from waterfall to agile, and coached three teams globally on test-driven development.
- Introduced configuration management across multiple environments for three global teams, cutting deployment time by 90% with no errors or inconsistency.
- Set up CI/CD from scratch and built an in-house monitoring tool.
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App Annie · Staff Full-Stack Engineer
- Built frontend and backend of our app intelligence system with test automation, reaching millions of users and making the product number one in its market.
- Onboarded and mentored junior engineers, and improved the agile process and sprint success rate.
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Oracle · Senior Member of Technical Staff
- Collaborated with three teams globally to design, build, and test our CI toolchain, reaching 100% automation.
- Grew the team: interviewed, hired, and coached four junior members.
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Baidu · Software Engineer
- Joined as the third member of the architecture team and grew with it to 50+ people.
- Built a multi-datacenter infrastructure with 30+ high-performance, highly available shared services, with load balancing and automatic disaster recovery, serving every vertical product team inside Baidu at more than 10 billion requests per day.
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SINOSURE · Software Engineer, Product Owner
- Built and maintained our import/export insurance platform, serving 100,000+ corporations and supporting over a trillion in exports and investments — making exports to high-risk regions possible.
- Designed and implemented the digital signature system for online insurance policies from scratch, and designed a new online insurance sales platform.
Education
Tsinghua University · B.Eng., Computer Science and Technology
Certifications
- CNCF Ambassador, 2023
- AWS Certified Solutions Architect – Professional, 2021
- AWS Certified Solutions Architect – Associate, 2021
- CKA: Certified Kubernetes Administrator, 2021
- HashiCorp Certified: Terraform Associate
- Certified Calico Operator, Calico, 2021
- Machine Learning, Stanford University, 2019
- Data Protection for Employees (GDPR), lawpilots GmbH, 2018
- Agile and Scrum Methodologies, Outsofting, 2015
- Code Refactoring, China Information Industry, 2011
Writing
- "Accelerate Your SDLC With DevSecOps" on DevOps.com — how to speed up the software development lifecycle with DevSecOps.
- Co-author of "The Authoritative Guide to Software Development Efficiency" — contributed the chapter on DevOps and open-source toolchains.
- "State of Kubernetes Secrets Management in 2022" — featured in the 331st edition of the KubeWeekly newsletter.
- Many more articles on Medium's DevOps publication 4th Coffee and the GitGuardian blog, covering DevOps, DevSecOps, Kubernetes, and cloud.
Speaking
- 2019 — Co-founder and keynote speaker at the Kubernetes & Cloud Native Lisbon meetup, on "Zero Downtime Kubernetes Deployment".
- Feb 2022 — Speaker at the CSDN Cloud Native Superhero Summit, on "Accelerating the Software Development Lifecycle with an Open-Source DevOps Toolchain".
- Apr 2022 — Featured speaker in a global webinar, "Hands-On Guide to Kubernetes Hardening".
- May 2022 — Speaker at the GitOps salon organized by the China Academy of Information and Communications Technology (CAICT), on "Mastering GitOps with an Open-Source DevOps Toolchain".
- Jun 2022 — Speaker at the DevOpsDays China annual summit in Beijing, on "Continuous Everything".
- Nov 2022 — Keynote speaker at the European BuildStuff conference, on "Continuous Everything: Open Source and the Future of DevOps and Platform Engineering".
- Mar 2023 — Global webinar, "Secure Your IaC: Infrastructure as Code Best Practices for Security".
- Dec 2023 — Organizer and key speaker at the CNCF meetup in Chengdu, on "10 DevOps Tools Worth Watching in 2024".
Awards
- Silver medal, National Mathematical Olympiad, China
- Silver medal, National Chemistry Olympiad, China
- Bronze medal, National Physics Olympiad, China
- Gold medal, Junior High Chemistry Olympiad, China