Tong Huu Khiem
Github: exklamationmark


I am a Software Engineer with experience in both backend and infrastructure. I have built API services, data pipelines, payment processing and monitoring systems, amongst other things.


I am proficient with Go. I also have experience with C++, Ruby and Python.

I have extensive operational experience with PostgreSQL, Redis, RabbitMQ, Docker and Kubernetes. Also, I have dealt with OpenTSDB, Kafka, Grafana, Prometheus, Terraform, gRPC and Ruby on Rails.

I have been in on-call rotations at Viki and Singapore Power.

Employment history

Singapore Power, SPDigital

Apr 2017 - Current

Senior Software Engineer

SPDigital develops SaaS products for Singapore's biggest electricity utility company. My team works on energy management solutions (tenant billing, anomaly detection and usage optimization).

  • Led development of data collection and storage systems for 1000+ time series.
    Worked with Go, OpenTSDB, gRPC and Kafka.
  • Managed Kubernetes clusters in QA and Production.
  • Deployed monitoring for data pipelines' health using Prometheus and Grafana.

(Rakuten) Viki

Jan 2014 - Mar 2017

Software Engineer

Viki streams video-on-demand with subtitles. My team handled the core services (API, streaming, payment, etc) and doubled as SREs.

  • Managed subscription system (handling 200k+ paying users), unified subscription model across Web (via Stripe), Android and iOS.
    Worked with Go, Ruby on Rails and PostgreSQL.
  • Benchmarked and redesigned edge-services (content API) to scale better (from 500 to 1000 rps).
  • Triaged outages and handled recovery for API services, PostgreSQL, Redis, RabbitMQ instances, etc.
  • Helped converting backend micro-services to containers (via Docker).

Extracurricular Activities


National University of Singapore

Aug 2009 - Feb 2014

Bachelor of Engineering (Computer Engineering)

Stanford University

Jun 2011 - Jun 2012

Management Science and Engineering