antonius@engineering: ~/cv
antonius@engineering:~$ whoami

Antonius Liu.

Engineering Manager @ SiCepat Ekspres Indonesia
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Summary

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/* Software Engineer with 10+ years of backend experience. */
Familiar with maintaining and improving the reliability, availability, and scalability of complex microservice systems — at both the application level (circuit breakers, feature toggles, multithreading) and the architecture level (zero-downtime deployments, load-balancing, distributed tracing).

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Experience

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Oct 2021 — Present 4 yrs 8 mos ● CURRENT

Engineering Manager (prev. Technical Lead)

SiCepat Ekspres — Logistics company in Indonesia
  • Lead the Operational Squad as scrum master and engineering manager.
  • Drive migration from legacy monolith to a Kubernetes-based microservice platform.
  • Collaborate cross-tribe on microservice integration; review TRDs and code.
  • Maintain operational uptime of 99% across critical services.
  • Mentored a team member to be promoted to lead level; mentor team on Golang.
  • Drove cost-optimization initiatives and shipped production deployment SOP.
stack: GoNode.jsPostgreSQLMongoDBKafkaBullMQDockerKubernetesGCP
Apr 2021 — Oct 2021 7 mos

Senior Engineer

Traveloka — Largest online travel agency in Indonesia
  • Owned data-fetcher services for gift voucher and wealth management features.
  • Built integration & unit tests; ran ETL into data warehouse / data lake.
  • Set up services, batches, message brokers and contributed to cost optimization.
  • Buddy for new junior engineers; gained hands-on IaC experience in a tech company.
stack: Java EESpring BootPostgreSQLSNSSQSTerraformAWS
Jul 2020 — Apr 2021 10 mos

Technical Lead

Tokopedia — Largest unicorn e-commerce in Indonesia
  • Led the Fintech Investment & Insurance team; owned multiple microservices.
  • Scrum master: ran grooming, retros, 1:1s, and team workload planning.
  • Led improvement of secure data transfer with partners and consolidated insurance policy across partners.
  • Delivered a POC for the financial-service authority (OJK) in < 1 month.
  • Mentored team members to next-level promotions; ran system-design reviews focused on reliability and scalability.
stack: GoMySQLCassandraRedisMQAWSAliyun
Nov 2017 — Jul 2020 2 yrs 9 mos

Senior Software Engineer

Tokopedia — Fintech investment & insurance
  • Owned core fintech investment & insurance products.
  • Delivered investment service from scratch — tokopedia.com/emas.
  • Delivered product-protection service from scratch — one of the biggest income drivers in fintech.
  • Maintained partner integrations; authored unit tests, docs, and service monitoring.
  • Collaborated with international engineering teams.
stack: GojQueryLinuxMySQLCassandraRedisAWS
Nov 2016 — Nov 2017 1 yr 1 mo

Java Developer

Aprisma Wirecard Indonesia — IT solution provider for e-Banking
  • Owned bill upload/download in eBanking and the Range Balance — Corporate Banking menu.
  • Built liquidity-management web services and core-banking system integrations.
  • Go-to person for the core banking system; learned Angular and delivered all menus on time.
  • Experienced all stages of the SDLC in a corporate environment.
stack: Java EEWeb ServicesWebLogicWebSpherePostgreSQLjQuery
May 2015 — Aug 2017 2 yrs 4 mos

Host Integrator

PT. Aprisma Wirecard — e-Banking middleware
  • Analyzed banking transaction flows and authored Integration Specification Documents (ISD).
  • Built middleware services bridging e-bank channels and Core Banking Systems via PrismaGateway.
  • Maintained productivity of all integration services in production.
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Skills

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languages
Go Java JavaScript / Node.js PHP Python
infrastructure
Kubernetes Docker NGINX Linux Git Terraform
data & messaging
PostgreSQL MySQL MongoDB Cassandra Redis Kafka BullMQ SNS / SQS
cloud & observability
GCP AWS Aliyun Datadog Grafana
domains
Distributed systems Microservice architecture High availability & reliability Concurrency System design Mentoring & team leadership Scrum
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Education & Languages

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President University
Bachelor of Science — Information Technology
2011 — 2015
Relevant courses: Software Engineering, Object-Oriented Programming, Networking. Teaching assistant — mentored juniors on networking simulation using Cisco Packet Tracer.
IndonesianNative / Bilingual
EnglishProfessional Working
antonius@engineering:~$