---
title: "CV"
type: "cv"
date: 2026-03-17
draft: false
---

# NIK AFIQ

Tokyo, Japan
nik@nik4nao.com | github.com/nikafiq | nik4nao.com


---

## PROFESSIONAL SUMMARY

Backend engineer with 3 years of professional experience designing and
operating distributed, high-throughput systems on GCP and AWS. Core
expertise in Go and Python, with hands-on production experience in
event-driven microservices, Kafka-based pipelines, Kubernetes, and
cloud-native data infrastructure. Comfortable operating systems at
hundreds of TPS with reliability and zero-downtime migration
constraints. Trilingual (English, Japanese N1, Malay) — routinely
bridges Japanese and overseas engineering teams. Actively integrates
AI tooling (GitHub Copilot, Gemini, Claude) into daily coding,
review, and documentation workflows.


---

## WORK EXPERIENCE

### 株式会社ホープス (Hopes Co., Ltd.) — Tokyo
**Backend Engineer** | Aug 2025 – Present

Designing and operating a distributed RCS consent management pipeline
(SO→FoRCE) on GCP/GKE connecting a high-traffic notice delivery
system to a downstream fulfillment API.

- Architected an event-driven pipeline using GKE + Managed Kafka
  (8 partitions, keyed by account_id) + Cloud Spanner, handling a
  global cap of 200 TPS with a 10-second downstream timeout budget
- Built the Go consumer service (so-notice-receiver) with
  singleflight coalescing to prevent duplicate in-flight requests,
  and circuit breaker logic to shed load under downstream failure
- Designed reliable offset commit ordering: offsets committed only
  after durable Spanner write, ensuring at-least-once delivery with
  no data loss on crash
- Implemented a retry cronjob requeuing up to 5 failed Spanner rows
  back to Kafka every 5 minutes, with configurable backoff
- Designed a zero-downtime interleaved index migration on a Cloud
  Spanner accounts table under 400 TPS sustained read traffic
- Right-sized GKE resource configs (CPU/memory requests and limits)
  from Locust load test data at 40 TPS steady / 120 TPS burst
- Propagated distributed traces across service boundaries for
  end-to-end production observability


### 株式会社ニッポンダイナミックシステムズ — Tokyo
**Full Stack Engineer, IT Solutions — Pharma Market Team**
| Apr 2023 – Jul 2025

- Built a scalable analytical DWH on Amazon Aurora (RDS) for a
  pharmaceutical client, integrating Salesforce and multiple
  external data sources via daily/weekly ETL batch pipelines using
  ECS/Fargate and Lambda; designed for HA with Multi-AZ failover
- Constructed a SaaS data lake using AWS CDK + Glue +
  TypeScript/Python, fully automating ETL ingestion across
  heterogeneous data sources
- Developed an internal AI application using AWS Bedrock (Claude
  Sonnet) + React, implementing RAG-based document retrieval and
  SES-based user matching in a small cross-functional team
- Built a license authentication service (Node.js + Docker + Azure
  Web Apps + ADB2C), owning requirements definition, auth logic
  design, and client-facing communication
- Designed and automated monthly maintenance operations: AMI image
  updates, security patching, automated regression testing, and
  blue/green deployments via AWS CodePipeline and Azure Pipelines
- Conducted Docker image vulnerability scanning as part of CI/CD
  pipeline; managed VPC, WAF, and Security Group configurations
- Mentored junior engineers on cloud architecture patterns;
  functioned as bilingual (EN/JA) liaison between domestic and
  overseas engineering teams


---

## SKILLS

**Languages:** Go, Python, TypeScript/JavaScript
**Frameworks:** Gin, Flask, Next.js, Node.js
**Cloud — AWS:** ECS/Fargate, Lambda, Aurora/RDS, DynamoDB, Glue,
  CDK, CodePipeline, Bedrock, Secrets Manager
**Cloud — GCP:** GKE, Cloud Spanner, Managed Kafka (Pub/Sub),
  BigQuery, Cloud Trace
**Cloud — Azure:** Web Apps, ADB2C, Azure Pipelines
**Data:** MySQL, Aurora, PostgreSQL, DynamoDB, Cloud Spanner,
  Kafka, Redis
**DevOps:** Docker, Kubernetes, ArgoCD, CI/CD, IaC (AWS CDK)
**Observability:** Distributed tracing, ELK stack, Kibana
**AI Tooling:** GitHub Copilot (daily coding + code review),
  Gemini (documentation + research), Claude (architecture
  reasoning + coding), AWS Bedrock RAG (production)
**Security:** VPC, WAF, Security Groups, Secrets Manager,
  Docker vulnerability scanning
**Other:** Homelab (k3s, self-hosted services, Ansible/IaC),
  personal dev blog at nik4nao.com


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## CERTIFICATIONS

| Certification | Issued |
|---|---|
| AWS Certified Solutions Architect – Associate (SAA) | Oct 2024 |
| AWS Certified Developer – Associate (DVA) | Dec 2024 |
| AWS Certified Cloud Practitioner (CLF) | Apr 2024 |
| 基本情報技術者試験 (FE) — IPA Fundamental IT Engineer | Aug 2024 |
| JLPT N1 — Japanese Language Proficiency | Dec 2022 |

*In progress: AWS Solutions Architect – Professional (SAP),
Applied Information Technology Engineer (AP)*


---

## EDUCATION

**Tokai University** — Bachelor of Engineering
Major: Electrical and Electronic Engineering
Minor: Information Technology
Graduated: March 2023

*During a COVID-related leave of absence (2020–2021), independently
studied programming and cloud architecture; resumed with an
added IT minor upon return.*


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## ADDITIONAL

- **Languages:** English (business), Japanese (JLPT N1), Malay (native)
- **Homelab:** Self-hosted k3s cluster, Gitea, Jellyfin, Cloudflare
  Tunnel, Ansible-based IaC on Minisforum UM790 Pro
- **Dev blog / personal site:** nik4nao.com
- **Self-hosted Git:** git.nik4nao.com (mirrored to github.com/nikafiq)