Customs · Trade · Code

Indonesian customs expert who
ships the software that runs the job.

Senior EXIM & Customs Specialist · AI-Augmented Builder. Certified Ahli Kepabeanan (2026) with 6+ years across Bonded Zone & KEK facilities — building production systems for the exact workflows I run every working day.

View the work Get in touch 📍 Kendal, Central Java, Indonesia

PPKEK · Declaration INSW

Status: ● PENDING ● CLEARED
Nomor Aju: 000025…0159
HS Code: 7326.90.99
Kantor Pabean: KPPBC Semarang

0+ Years EXIM / Customs

0 Production systems

0+ Tests across projects

0h Hours automated / month

Selected work

Three systems, one operator.

Each project is production software I built to solve a problem I personally own — from customs portals to the stock exchange.

INSW Automation Studio Pro PROD RUNNING

DashboardLive logsMetrics SSE connected

PPKEK · batch 3 / 568%

1 2 3 45

142Rows queued

8.4/mThroughput

3Retries · 0 failed

16:52ETA · −93% vs manual

Throughput · rows / min▲ live

Activity streamrow 099

✓ 23:03:58 · Chrome launched · CDP attached

✓ 23:04:01 · SSO session valid · reachable

→ 23:04:03 · Batch 3 / 5 · 142 rows queued

✓ 23:04:07 · Row 096 · NO SERI 23042026 · saved

↻ 23:04:09 · Row 097 · SweetAlert · retry 1/3

✓ 23:04:09 · Row 097 · recovered · saved

✓ 23:04:12 · Rows 098 streamed via SSE

✓ 23:04:13 · XLSX audit appended

→ 23:04:14 · metrics pushed · Prometheus

▮ 23:04:14 · Row 099 · submitting…

Run log · tail -f all✓ ok↻ retry⚠ warn

→ 23:03:55 · run started · batch_3.xlsx · headed

✓ 23:03:58 · Chrome 124 · CDP attached · profile loaded

✓ 23:04:01 · SSO login · session token valid 59m

→ 23:04:03 · MasterList resolved · 142 rows · 5 fasilitas

✓ 23:04:07 · Row 096 · POST /declaration · 201 · 412ms

↻ 23:04:09 · Row 097 · SweetAlert intercept · tier-2 retry

✓ 23:04:09 · Row 097 · popup dismissed · 201 · 880ms

✓ 23:04:11 · Row 098 · 201 · 401ms · XLSX appended

→ 23:04:13 · checkpoint saved · resumable

✓ 23:04:13 · metrics scraped · job=insw_run

▮ 23:04:14 · Row 099 / 142 · submitting…

Prometheus Grafana XLSX audit trail 650+ tests · 14-job CI

Customs Automation · PPKEK 01 · 2024–2026

INSW Automation Studio Pro

From 4 hours of manual customs clicking to 17 minutes, unattended.

4h → 17m · Daily workflow time 85+ · Live production runs

Read the case study →

◆ SahamQuant Strategi & HasilSinyalLive (simulasi) IHSG −6.47% SIM

Core + Satellite · equity curve (OOS)+20.76%

OOS Sharpe 1.349

StrategyIHSG benchmarkwalk-forward · long-only · T+2

Alpha+12.96%

Sharpe0.289

60/40

Core · IDX4 factor 60%
Satellite · mean-rev 40%

StrategyRet

IDX4 Factor+18.2%

Mean Reversion+9.4%

Foreign-flow tilt+6.1%

EOD signals · IDX80 universe · reviewed before order5 / 80 actionable

TickerSignalScoreFactor

BBCA BUY 0.91 value + foreign-flow

TLKM BUY 0.84 quality + reversal

ANTM BUY 0.78 momentum (satellite)

ASII HOLD 0.52 size neutral

UNVR SELL 0.23 profitability decay

Unrealized P&L · paper+Rp 4.82 jt

Day+1.4%

Positions4

execution stays manual · no retail API

TickerLotEntryLastP&L

BBCA20 lot9 6909 875 +1.9%

TLKM50 lot3 0453 120 +2.5%

BBRI30 lot4 4604 410 −1.1%

ANTM40 lot1 5201 565 +3.0%

BBCA 9 875 +1.8%TLKM 3 120 +2.4%ASII 4 980 −0.6%BBRI 4 410 +1.1%BMRI 6 050 +0.9%UNVR 2 230 −1.2%ANTM 1 565 +3.1%GOTO 62 −1.6%BBCA 9 875 +1.8%TLKM 3 120 +2.4%ASII 4 980 −0.6%BBRI 4 410 +1.1%BMRI 6 050 +0.9%UNVR 2 230 −1.2%ANTM 1 565 +3.1%GOTO 62 −1.6%

Quantitative Finance · IDX 02 · 2026

SahamQuant

A quantitative trading system for Indonesian equities (IDX/BEI).

+20.76% · Annual return (IHSG −6.47%) +12.96% · Alpha

Read the case study →

BC 2.5 Generator U9 ERP → CEISA 4.0 95% HS coverage BUILD

Parse U9Match HSGenerate XLSXSubmit CEISA

XLS

Commercial Invoice / PLU9 export · 142 lines · Template_Invoice_CIPL_BC25

✓

HTM

Product Structure (BOM).xls = HTML · parsed via read_html · 142 parts

✓

auto-detected U9 schema · freight mode by word-boundary regex · Nomor Aju pre-allocated

MatchingEngine · BOM → HS138 / 142

MaterialTierHS Code

Steel bracket Import 7326.90.99

PE resin Import 3901.10.92

Local foam pad Local 3921.13.00

Wiring harness Import resolving…

Adhesive X-22 Local missing HS

Tier 1 · OSS importTier 2 · local sheetalias-drift resilient

BC
2.5

BC25_…0159.xlsxNomor Aju · 26 digit

↓

000025 BOL7 2320 2604 0700 0159

✓Header · kantor pabean · jenis pemasukan ✓Barang · 142 rows · pos tarif HS ✓Pungutan · entitas · pengangkut ✓openpyxl fill from SCHEMA_REF template

✓ Manual portal uploadverified end-to-end · closed loop

◷ OAuth H2H submissionpending KPPBC api-key scope

POST /nle-oauth/v1/user/login · token
POST /openapi/document?isFinal=true
awaiting application authorization (dev: item null)

until H2H lands · manual upload is the supported path · missing-HS CSV → re-import → hot-reload

✓ CEISA manual-upload compatible Pydantic CeisaBC25Payload ready · 118 tests · 95% cov

Customs Document Engineering · CEISA 4.0 03 · 2026

BC 2.5 Generator

Turns U9 ERP exports into Indonesian customs BC 2.5 declarations.

118 · Tests passing 95% · Coverage

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The combination

Domain expert who ships, not a coder guessing at customs.

Most automation fails because the builder doesn't understand the domain. I've filled these forms thousands of times — every retry path, every field validation, every popup dismissal is rooted in operational reality. I write production-grade code as an AI-augmented professional (ChatGPT · Claude · Copilot), then back it with tests, observability, and documentation.

Read the full profile →

◆ Sertifikasi Ahli Kepabeanan (2026)
◆ ~500 Masterlist items / year · ~IDR 10B
◆ ~100 shipments/month · sea / air / multimodal
◆ ID · EN · Mandarin (HSK in progress)

Indonesian customs expert whoships the software that runs the job.

Three systems, one operator.

INSW Automation Studio Pro

SahamQuant

BC 2.5 Generator

Domain expert who ships, not a coder guessing at customs.

Indonesian customs expert who
ships the software that runs the job.