resume

Platform engineering, reliability, and automation.

The strongest recent signal is platform ownership: Kubernetes reliability, AWS infrastructure, progressive delivery, developer tooling, and risk prevention.

Lian Zhen Yang

Platform Engineer

Enschede, Netherlands

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Experience

Just Eat Takeaway.com

Enschede, Netherlands

Platform Engineer

September 2024 - Present

Reduced network connectivity diagnosis time by roughly 90% by building a Go-based self-service route-path visualization tool for cross-account AWS networking issues.
Led AI-assisted dependency mapping for 300+ components in a disaster recovery initiative, using diagram-as-code workflows to accelerate SME validation.
Automated Kubernetes quota risk analysis across 200+ namespaces and 6 environments, warning 45+ teams of HPA/resource scheduling risks before peak-traffic change freeze.
Hardened progressive delivery workflows by improving Argo Rollouts observability, fixing Helm rollback edge cases, and validating KEDA autoscaling patterns.
Improved developer onboarding by extending Backstage scaffolding with custom TypeScript actions and cleaner service metadata workflows.
Reduced deployment/configuration risk by building Python certificate-validation checks for ingress/ACM changes before Helmfile deployments.
Improved platform operability by reducing non-actionable PagerDuty alerts and investigating Prometheus, Alertmanager, and Datadog failure modes.
Contributed to platform security and governance through RBAC access-model proposals, EKS risk assessment work, and certificate/DNS validation improvements.

BASF Forward AM

Emmen, Netherlands

Sales Operations Manager

June 2023 - September 2024

Drastically increased CRM hygiene, as well as internal sales and business lines alignment by implementing an operating cadence with structured agendas and Tableau dashboards in Salesforce.
Reduced sales budget planning time to 3 workshop days by designing a budgeting process involving four phases: (1) Top-down business plan, (2) bottom-up forecasting, (3) initiative suggestions, (4) shortlisting of initiatives.
Achieved 90% reduction in finance team reporting labor by developing a Power BI model for margin deviation analysis automation.
Enhanced Tableau Cloud efficiency by increasing flow refresh frequency from daily to hourly using a Python script with Selenium, saving €20,000 annually on data management licenses.
Established a single point of truth in company data by consolidating 1400+ SKUs and 1000+ revenue accounts, enhancing global data governance.
Enabled hourly-refreshed monitoring of Lead Generation through to Customer Success by building 'North-Star' company-wide dashboards in Tableau, integrated in Salesforce.
Implemented a Salesforce CRM module in Apex and JavaScript for real-time sales forecasts, significantly reducing manual Excel tracking.
Designed and Implemented a Sales Target Allocation system allowing sales reps and directors to accurately track performance and bonuses.

Process Engineer and Data Analyst Trainee

December 2022 - June 2023

Massively reduced (96%) manual labor of data processing, saving €30,000+ per year by developing a Python ETL pipeline and daily Production KPIs app (visualized in Plotly/Power BI).
Boosted production to 60,000 kg/year with an OEE increase from 35% to 75%, saving €15,000+ by improving equipment efficiency.
Redesigned KPI reporting pipeline for diverse business processes, automating data collection and analysis.
Enabled automatic generation of Packaging Label for 600+ products by building a master product database in Excel.

Eurofins GSC Services

Brussels, Belgium

Permanent Improvement Programme Intern

February 2022 - December 2022

Increased profitability for a cluster of UK laboratories via a customer profitability model developed in Excel.
Developed a project tracker for 350+ projects, visualized in Power BI.
Translated data into actionable insights for margin and productivity enhancement.
Assisted in annual operational budgeting for multiple labs.

University of Groningen

Groningen, Netherlands

Head Mentor/Teaching Assistant

September 2020 - June 2022

Mentored 12 bachelor students, offering academic and technical guidance.
Conducted regular chemistry lessons and supervised lab courses.

Student Lab Assistant

January 2020 - February 2020

Assisted 120+ students in chemical sample analysis using NMR.
Provided expert insights on over 700 NMR samples.

Kroton Volleyball Association

Groningen, Netherlands

Treasurer for Beach Committee

January 2021 - August 2022

Managed an annual budget exceeding €8000 for the Kroton Beach Volleyball Tournament.
Oversaw financial record-keeping, ensuring transparency in cash flows.

Education

M.Sc. in Chemical Engineering
University of Groningen
September 2020 - August 2022
Majored in Advanced Process Engineering with a thesis in numerical modeling of homogeneous catalytic reactions in fractals. Specialization: Advanced Process Engineering
B.Sc. in Chemical Engineering
University of Groningen
September 2017 - August 2020
Participated in Honours Programme. (Bachelor’s (Honours) in Chemical Engineering)
Summer School for Honours Programme
University of Groningen
July 2019 - August 2019
Summer School for Honours Programme in Barcelona, investigating the social impact of superblocks (Superilles) in Barcelona.

Languages

EnglishNative Speaker
ChineseNative Speaker
MalayNative Speaker
CantoneseProfessional Speaker
DutchA2 level (Passed Inburgeringsexamen)

skills

Capability groups.

Grouped around the work I want the site to signal: platform reliability, delivery, cloud infrastructure, developer platforms, and governance.

Kubernetes Reliability

EKS production readiness, HPA and ResourceQuota analysis, Karpenter validation, and cluster operability.

EKSHPAResourceQuotaKarpenterPrometheusDatadog

Progressive Delivery

Safer rollout and rollback workflows with clearer developer-facing signals.

HelmHelmfileArgo RolloutsKEDADatadog

Cloud Infrastructure

Infrastructure-as-code, AWS networking, DNS, certificates, and platform migration work.

AWSTerraformTerragruntIAMRoute53ACMCloudflare

Developer Platforms

Self-service tooling, Backstage scaffolding, documentation, and platform UX.

BackstageTypeScriptGoPythonReactNext.js

Security & Governance

Access-model proposals, guardrails, certificate validation, and risk assessment.

RBACIRSAVaultDNSEKSPython