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Johnathan Parker

@johnathanparker

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Senior Software Engineer

Indonesia

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Komplek Permata Indralaya Blok F2, Permata Baru, Indralaya Utara, Ogan Ilir, Sumatera Selatan 30862

+62 838 2617 6613

bozakazu@outlook.com

Experience

Work history, roles, and key accomplishments

Senior Full Stack Engineer

PT. Indo-Rama Synthetics Tbk

Feb 2020 - Jun 2026 (6 years 4 months)

Designed identity-enabled healthcare services using OAuth 2.0, OpenID Connect, JWT, PKI, Java, Python, TypeScript, and REST APIs, delivering 18 authenticated service integrations. Implemented OpenID Connect discovery, authorization-code flows, PKCE, JWKS processing, token introspection, and service-to-service mTLS, creating reusable security libraries adopted across 12 applications.

OAuth OpenID Connect JWT PKI Java Python TypeScript REST PKCE Authentication JWKS mTLS Verifiable Credentials Jose JSON schema Pytest Postman Docker CI CD OpenTelemetry Prometheus Grafana

Full Stack Developer

Kirana Megatara

May 2015 - Jan 2020 (4 years 8 months)

Built payment platform authentication and authorization services using OAuth 2.0, OpenID Connect, Java, Python, JavaScript, PostgreSQL, and REST, implementing token issuance and validation patterns across 11 APIs. Integrated PKI, X.509 certificates, TLS, mTLS, secure key storage, and automated certificate validation into external payment connections.

OAuth OpenID Connect Java Python JavaScript PostgreSQL REST PKI X509 TLS mTLS Docker CI CD SQL Linux

Junior Web Developer

Malindo Feedmill

Jul 2012 - Sep 2014 (2 years 2 months)

Developed Internet-facing search services and web integrations using JavaScript, C#, SQL, HTTP, REST, JSON, HTML, and CSS, delivering 10 customer-facing API integrations. Implemented OAuth 2.0 authorization patterns for emerging API integrations and built HTTP, DNS, TLS, and endpoint troubleshooting utilities.