Ajit Singh

Platform Engineer

Amstelveen, North Holland, Netherlands17 yrs experience

Most Likely To SwitchAI ML Practitioner

Key Highlights

Led platform engineering initiatives at Uber.
Achieved 99.99% platform availability.
Mentored engineers, promoting two to Staff level.

Stackforce AI infers this person is a SaaS and Fintech expert specializing in cloud-native infrastructure and distributed systems.

Contact

ajitsingh25@gmail.com LinkedIn

Skills

Core Skills

Platform EngineeringDistributed SystemsSoftware ObservabilityScalabilitySite Reliability EngineeringCloud InfrastructurePlatform ReliabilityCloud ComputingMicroservicesSoftware Engineering

Other Skills

Agile MethodologiesAlgorithmsAmazon Web Services (AWS)AnsibleApache KafkaArchitectural DesignBashCloud SecurityContinuous Integration and Continuous Delivery (CI/CD)Data StructuresDesign PatternsDevOpsELKEngineering LeadershipEnterprise Architecture

About

Platform Engineer passionate about building cloud-native infrastructure that scales to billions of requests while maintaining 99.99% reliability. With 15+ years of hands-on experience, I architect and operate distributed systems at massive scale—currently leading platform engineering initiatives at Uber. Technical leadership across distributed systems, influencing 50+ engineers through Architecture Decision Records (ADRs) WHAT I BUILD: • Multi-cluster platforms serving 500+ microservices at 99.99% availability • Real-time observability systems processing 30K RPS with sub-500ms latency • Distributed caching handling 150M+ reads/second with strong consistency • Event streaming infrastructure processing trillions of daily messages • GPU-accelerated data pipelines achieving 70% cost reduction Influence through technical expertise and demonstrated results | Balance strategic vision with hands-on implementation | Build consensus across Product, Engineering, Security | Make complex decisions under ambiguity with transparent tradeoff documentation | Grow engineers through mentorship and sponsorship Always learning, always building. Open to connecting with engineers working on distributed systems, platform engineering, SRE, and cloud-native infrastructure at scale. Let's connect! 🤝

Experience

Uber

Platform Lead

Jan 2022 – Present · 4 yrs 2 mos · Amsterdam, North Holland, Netherlands · On-site

Leading platform engineering for cloud-native infrastructure at massive scale.
KEY ACHIEVEMENTS:
Led Spark 2.4→3.3 migration for 2M+ daily applications achieving 85% automation via custom Iron Dome framework, delivering 50% performance improvement and millions in cost savings
Architected DataCentral observability platform processing 30K RPS with sub-500ms latency using Kafka + Flink, serving 500K Presto queries/day, 400K Spark apps/day, 2M Hive queries/day
Scaled CacheFront distributed caching to 150M+ reads/second with 99.9%+ hit rate implementing write-through consistency protocol and sub-millisecond latency
Built multi-cluster Kubernetes platform supporting 500+ microservices with Istio/Envoy service mesh achieving 99.99% mTLS coverage and 40% reduction in network incidents
Established SRE practices (SLO/SLI, chaos engineering) achieving 99.99% platform availability and reducing MTTR by 50% with Prometheus, Grafana, OpenTelemetry
Standardized mobile analytics across iOS/Android (Rider, Driver, Eats), instrumenting 50+ UI components and reducing custom events by 40% with zero performance impact
LEADERSHIP:
Mentor 5 senior engineers (2 promoted to Staff)
Author ADRs adopted by 50+ engineers
Present technical roadmaps to VP/CTO
Lead cross-team initiatives

argocdPlatform EngineeringTerraformKubernetesDevOpsCloud Computing+4

Paypal

Staff Engineer Infrastructure

Jul 2017 – Dec 2021 · 4 yrs 5 mos · Chennai Area, India · On-site

Led cloud infrastructure and platform reliability at enterprise scale.
KEY ACHIEVEMENTS:
Scaled Kafka event streaming to trillions of daily messages across 1,500+ brokers and 20K+ topics with 2,000 Mirror Maker nodes for multi-region replication, achieving 99.99% availability for mission-critical payment processing
Achieved 70% cloud cost reduction optimizing Spark workloads with GPU acceleration (Tesla T4), reducing infrastructure from 140 CPU to 30 GPU machines with 50% performance improvement
Designed multi-cloud infrastructure automation using Terraform and GitOps (ArgoCD, Flux) with 200+ reusable modules achieving 99.9% deployment success across AWS (EKS) and GCP (GKE)
Led monolith-to-microservices migration on Kubernetes reducing infrastructure costs by 40% with container security platform (Harbor, Trivy, Cosign) and service mesh managing 800+ microservices
Built observability stack integrating Prometheus, Grafana, ELK, Jaeger distributed tracing for 200+ services with SLO/SLI tracking and automated alerting

TerraformAnsibleEnterprise ArchitectureMicroservicesKubernetesSoftware Engineering+7

Oracle india pvt. ltd

Senior Infrastructure Architect

Sep 2015 – Jun 2017 · 1 yr 9 mos · Hyderabad Area, India · On-site

Infrastructure as Code solutions and cloud migration strategies for enterprise customers.
Architected scalable IaC solutions for enterprise data applications on OCI and AWS
Designed cloud migration strategies and cutting-edge solutions for Oracle enterprise customers
Led engineering teams delivering complex cloud platform projects with Python and Java automation
Integrated monitoring frameworks (Elasticsearch, Splunk, Prometheus) for production observability
Implemented CI/CD pipelines and deployment automation across customer environments