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PRODUCT ENGINEER / INDONESIAPERSONAL PORTFOLIO · 2026

THE PERSON BEHIND THE SYSTEMS

JASONSARIWATING.

I turn complex security
into things that matter.

Enterprise cryptography. Thoughtful software.
The engineering that connects them.

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PROFILE / 1JS
Jason Sariwating, Product Engineer
Product EngineerBEKASI
INDONESIA ↗
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HSM & PKIDATA PROTECTIONFULL-STACK SYSTEMS
1 / SELECTED WORKCASE STUDIES

The engineering
in the field.

Integration, deployment, automation, and the work that makes a solution usable in practice.

2 / THE ENGINEER, NOT JUST THE STACKBEKASI, INDONESIA

Curious by nature.
Precise by practice.

View my résumé

I'm a Product Engineer at PT. i-Trust Data Teknologi, a digital security company focused on protecting identities, systems, and infrastructure. I build internal tools, customer-facing applications, and security solutions that turn complex technical requirements into practical, maintainable products.

My work focuses on HSM, PKI, key management, encryption, tokenization, automation, and full-stack application development. Through enterprise security projects, I have also developed working familiarity with Indonesia's Personal Data Protection Law, ISO/IEC 27001, PCI DSS, and related international compliance frameworks. I use this context to better understand solution requirements and customer discussions, without presenting myself as a compliance auditor or subject-matter expert.

1Product development & solution design

2Translating business requirements into scalable technical solutions

3Data security, HSM, and enterprise IT environments

TOOLS, SYSTEMS & CONTEXT

My working
toolkit.

Designing and integrating cryptographic and data protection solutions for enterprise environments.

HSMPKIKey ManagementEncryptionTokenization

3 / EXPERIENCE & EVIDENCELEARNING THROUGH DOING

The work keeps moving.
So do I.

Oct 2025 - PresentCurrent role

Product Engineer

i-Trust Data Teknologi · Indonesia

  • Design, deploy, integrate, and support enterprise cryptographic security solutions using Entrust nShield HSM and Entrust Cryptographic Security Platform.
  • Integrate HSM-based cryptographic services with customer applications, databases, and security infrastructure across enterprise environments.
  • Implement key management and key lifecycle workflows while supporting secure cryptographic operations.
  • Troubleshoot HSM connectivity, PKCS#11, Security World, and deployment-related issues in production environments.
  • Develop internal tools and automation to improve deployment, validation, testing, monitoring, and operational workflows.
  • Create technical documentation, deployment guides, troubleshooting procedures, and knowledge resources for engineering and customer-facing teams.
Aug 2023 - Dec 2024

Junior Product Engineer

i-Trust Data Teknologi · Indonesia

  • Developed and supported product features across internal tools and customer-facing solutions.
  • Performed functional testing, debugging, and troubleshooting to improve application reliability.
  • Assisted customer technical support, documentation, and deployment activities.
  • Researched and evaluated technologies for product and solution development.
ENTRUST APAC PARTNER BOOTCAMP / BALI, 2026

Complex systems.
Clearly explained.

Jason presenting a customer success story and database encryption demonstration at Entrust APAC Partner Bootcamp in Bali
FROM THE BUILD TO THE ROOMRepresenting PT. i-Trust Data Teknologi

Represented PT i-Trust Data Teknologi at the Entrust APAC Partner Bootcamp in Bali, presenting a customer success story and delivering a live database encryption demonstration.

The experience strengthened my ability to communicate technical solutions, collaborate across partner organizations, and present enterprise security use cases to an APAC audience.

Explore the demonstration

Credentials.
With the evidence.

CERTIFICATIONS & PROFESSIONAL TRAINING
4 / INSIDE THE ENGINEERINGAN INTERACTIVE ARCHITECTURE EXPLORER

Under the surface.
Everything connects.

I work where applications meet security infrastructure. Follow the request to see what that looks like.

REQUEST → OPERATION → RESULTILLUSTRATED WORKFLOW
1 / INPUTAPPLICATION2 / INTERFACEPKCS#113 / TRUST BOUNDARYnSHIELD HSMPROTECTED KEY BOUNDARY4 / OPERATION RESULT
CRYPTOGRAPHIC OPERATIONS RUN INSIDE THE HSM.
1/ 4

Application request

An application requests a cryptographic operation using its configured identity and permissions.

Read the full case

Data protection lab

Key rotation / Tokenization / Masking / Encryption

Open the lab
5 / TECHNICAL NOTEBOOK9 ARTICLES / ENGINEERING & RESEARCH

Understand it.
Then explain it.

Notes from working with cryptographic systems, APIs, and data protection. The long version, with diagrams.

1
Enterprise Security / 11 min readFEATURED

Who Can Decrypt? Designing Access Control Around Encrypted Data

Follow an authorized document read to understand where application permissions, workload identity, HSM controls, authenticated context, and revocation fit around encrypted data.

Access Control / Data Encryption / HSM / Key Management / Application Security
2
Enterprise Security / 11 min readFEATURED

Key Rotation Without Losing Access to Your Data

A practical guide to rotating encryption keys while preserving historical reads, safe migrations, and backup recovery, with envelope diagrams and a rollout test matrix.

Key Management / Key Rotation / Envelope Encryption / HSM / Data Protection
3
Enterprise Security / 24 min readFEATURED

From Plaintext to Protected Data: Understanding Enterprise Data Encryption

A practical, vendor-neutral guide to protecting enterprise data across applications, databases, files, backups, and service boundaries through sound encryption architecture and key management.

Data Encryption / Cryptography / Key Management / HSM / Data Protection / Application Security
RESEARCH / IEEE CITSM 2025

Where engineering
meets research.

Tokenization, encryption, and masking in database systems for data security.

Read the research note
6 / START A CONVERSATIONVisit my guestbook

What are we
building next?

jasonrds24@gmail.com

A product idea, a security challenge, or just a good technical conversation. I’d be glad to hear from you.

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JASON SARIWATING
PRODUCT ENGINEER · © 2026