Hi there! 👋

I'm Pham Quoc Khanh.

Backend Engineer with 4+ years of experience designing, building, and operating production systems. Specialized in Node.js (NestJS), event-driven architecture, and high-concurrency systems serving tens of thousands of users.

Get In Touch!📂 View Projects
⬡ NestJS🐳 Docker☸ Kubernetes📨 Kafka🔴 Redis🔍 Elasticsearch☁ AWS / GCP
🧑‍💻
⬡ NestJS
Backend Engineer 🚀
☸ Kubernetes EKS
About Me

Backend Engineer with over 4 years of hands-on experience designing, building, and operating production systems serving tens of thousands of users.

Specialized in Node.js (NestJS), event-driven architecture, and high-concurrency systems. Proven track record with cloud infrastructure on AWS & GCP, Kubernetes deployments, and full observability stacks.

Deep expertise in performance optimization, distributed system design, and production reliability.

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Years Experience
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Projects Shipped
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Users Served
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Coffees Consumed
My Journey
📅 Jul 2022 – Present
Backend Engineer
@ Lisod
📍 Ha Noi, Viet Nam · Full-time
Design, build, and operate backend systems for products serving ~100k users. Own the full stack from architecture and infrastructure to CI/CD pipelines and production monitoring.
Tech Stack
NestJSKafkaRabbitMQRedisElasticsearchMySQLPostgreSQLMongoDBAWS EKSDockerKubernetesGitLab CI/CDELK StackPrisma
Click each area to explore →
▼System Design
Designed scalable NestJS backends with event-driven architecture using Kafka & RabbitMQ. Structured services for horizontal scaling and fault tolerance.
▶Search
▶Real-time
▶Performance
▶Infrastructure
▶CI/CD
▶Monitoring
▶Database
Skills
⬡ Backend
Node.jsNestJSRESTful APIWebSocketGraphQLHigh-concurrencyAsync processingMicroservices
📨 Event-Driven
KafkaRabbitMQBull QueuePub/SubServer-Sent EventsEvent-driven arch
🗄 Data & Databases
MySQLPostgreSQLMongoDBRedisElasticsearchPrisma ORMQuery optimizationIndexingBigQuery
☁ Cloud & DevOps
AWS (EKS, EC2, S3, RDS)GCPLinodeDockerKubernetesNginxCloudflareLinux
🔁 CI/CD & Infra
GitLab CI/CDGitHub ActionsAnsibleAnsible GalaxyInfrastructure as CodeAuto-deploy
📊 Monitoring & Ops
ELK StackAPMKibanaLogstashUptime monitoringAlertingn8nSlack integration
🖥 Frontend
ReactJSNextJSReact NativeViteLaravel (legacy)
⚡ Performance
N+1 eliminationRedis cachingBatch processingBackground jobsHorizontal scalingLoad balancing
Featured Projects
Matching App
Social Media Platform for Dating
💘
Backend & Infrastructure Engineer
NestJSPrismaReact NativeKafkaRedisElasticsearchMySQLLinode
  • →Designed high-concurrency backend serving tens of thousands of concurrent users
  • →Built event-driven real-time chat & notification system with Kafka
  • →Implemented advanced search & recommendation with Elasticsearch
  • →Set up load-balanced production infrastructure on Linode
  • →Integrated Redis caching for feed ranking and session management
Job Crawler
Distributed Job Data Crawling Platform
🕷️
Backend & System Engineer
NestJSPythonPostgreSQLMongoDBRabbitMQRedisElasticsearchGCP
  • →Built distributed crawler with parallel processing across multiple worker nodes
  • →Designed async data pipelines via RabbitMQ for reliable job ingestion
  • →Indexed millions of job records into Elasticsearch for full-text search
  • →Monitored system health and set up alerting for crawler failures
  • →Used Python scripts for data extraction and transformation layer
Nester
Social Networking Platform (X-like)
🐦
Backend & Infrastructure Engineer
Matrix SynapseNextJSNestJSRedisElasticsearchAWS EKS
  • →Customized Matrix Synapse as the core messaging infrastructure
  • →Deployed microservices on Kubernetes (AWS EKS) with autoscaling policies
  • →Built post feed, follow graph, and trending topics with Redis & Elasticsearch
  • →Configured production monitoring, alerting, and log aggregation
SaaS Platform
Web Launching & Automation Platform
🚀
Backend & Infrastructure Engineer
NestJSPrismaRedisAnsibleBull QueueSSE
  • →Automated environment provisioning with Ansible & Ansible Galaxy
  • →Built site-launch API using Server-Sent Events (SSE) for live streaming progress
  • →Implemented background job processing with Redis Bull Queue
  • →Designed multi-tenant SaaS architecture with isolated environments
Get In Touch
🎓 Education
Engineer of Information Technology
Hanoi University of Civil Engineering
2017 – 2022
📍 Ha Noi, Viet Nam
🌍 Languages
Vietnamese
English

Open to backend engineering roles, freelance projects, and interesting collaborations. Let's build something reliable together.

📬 Direct Contact
✉️ khanhpq578@gmail.com
📞 0969 878 183