Aashish Bajpai

9+ years turning test signals into SLO-grade confidence — at VMware, EY, Oracle & beyond.

My Story

Full-stack performance and reliability engineer with ~9 years of expertise in performance optimisation, software development & site reliability engineering. Problem solver, research oriented & builder by attitude — able to own projects end-to-end and translate business requirements into mature solutions.

At PerfSage, I build open-source tools and patterns that make performance engineering faster to execute and easier to understand. I also write at thinkbits.org, sharing practical insights and battle-tested lessons from the field.

By the Numbers

Years XP

Companies

Certifications

Incidents Learned

Technical Skills

Apache JMeter95%

API & Load Performance Testing93%

SRE / SLO / SLI Engineering90%

Python & Automation (Locust, Terraform)88%

AWS & Cloud Infrastructure87%

Kubernetes & Container Orchestration85%

Chaos Engineering & Fault Injection82%

Observability (Datadog, Grafana, Prometheus)80%

Experience Timeline

VMware Current

Jun 2021 – Present · Bengaluru

Senior Member of Technical Staff — SRE & Dev

Led CDN migration from Imperva ➔ AWS (CloudFront + WAF + Shield) — 30% cost saving, 99.99% availability
Performance & chaos testing for a Kubernetes multi-tenant identity platform serving SSO across all VMware cloud
Automated 200+ performance tests as-a-service; built Terraform scripts reducing manual infra ops by 80%

Ernst & Young (EY) Dec 2020 – Jun 2021 · Bengaluru

Site Reliability Engineer

Onboarded & optimised performance for 15+ EY cloud-native microservices as SRE-as-a-Service
Defined SLO/SLI & error budgets; resolved 15+ production incidents as sole on-call engineer
Built “Synthetic Tests as a Service” tool — reduced manual testing effort by 70%

Oracle May 2020 – Dec 2020 · Bengaluru

Performance Engineer — OCI

Owned production performance & reliability incidents for multiple Oracle Cloud Infrastructure services
Leveraged data analytics to predict architecture/app issues from historical incident patterns
Capacity planning for “Chat Bot as a Service” and blameless post-mortem process rollout

Infor Aug 2018 – May 2020 · Ahmedabad

Performance Engineer

Slashed BI dashboard load time from >50 s to ~5 s through major architectural changes
Built Ruby/JMeter framework for automated script generation; monitoring with Grafana, Datadog & CloudWatch
Reduced false positives in performance strategy, directly improving ROI and production predictability

Cavisson Systems Mar 2016 – Aug 2018 · Noida

Performance Engineer

Full-spectrum benchmarking: microservices, databases, messaging queues, app containers (JBoss, Tomcat)
JVM tuning reduced average CPU by >10%; UI performance optimisation for Macy's production (Akamai mPulse, IBM TeaLeaf)
Resilience testing on AWS: Auto Scaling, Load Balancing, CloudFront — earned AWS SA Certification