> 01. overview
Joshua Leonardo Tengker
> Backend Software Engineer & Systems Architect
// Background
I'm a backend-focused software engineer based in Jakarta, Indonesia. I care about building systems that are simple to reason about, easy to test, and hard to break. Most of my work lives on the server — APIs, microservices, data pipelines, authentication, and observability tooling.
I work primarily with Go, PHP, and TypeScript, building multi-tenant architectures, distributed event notifications, and OpenTelemetry monitoring systems.
> 02. Quick Facts
> career trajectory
Professional Experience
Backend Developer Intern
Dec 2025 — Jun 2026PT Solusi Tiga Selaras (SOLUTIF) • Jakarta, Indonesia
Contributed to 7+ microservices within Solutif SCX CRM platform using Go, PHP, PostgreSQL, Redis, and Docker. Implemented multi-tenant API isolation, RBAC security, Redis real-time event notifications, and OpenTelemetry distributed tracing/metrics.
Full Stack Developer Intern
Aug 2024 — Dec 2024RSUD DR Sam Ratulangi • Sulawesi Utara, Indonesia
Built hospital indicator calculation system featuring PHP backend APIs and mobile user interfaces using React Native.
> academic foundation
Education
Bachelor of Computer Science, Informatics
Aug 2021 — May 2025Universitas Klabat • Airmadidi, North Sulawesi, Indonesia
GPA: 3.90 / 4.00 • Honor: Summa Cum Laude
> leadership & community
Organization Experience
Crew of Parliamentarian
Jan — May 2025Student Executive Board (BEM UNKLAB)
Primary coordinator for BEM UNKLAB events, responsible for event execution, rundowns, and PIC task delegation.
President
Feb — Dec 2024Event Organizer Community (EOC)
Led community activities, managed event operations, role delegation, and official advisor reporting.
> credentials